Sanpin boiler plants. Regulations

21.06.2019

Boiler room - a complex of buildings and structures, a building or premises with a boiler (heat generator) and auxiliary technological equipment designed to generate heat for heating purposes.
Central boiler room - boiler room, designed for several buildings and structures associated with the boiler room with external heating networks.
Autonomous (individual) boiler room - boiler room, designed for heat supply of one building or structure.
Roof boiler - a boiler room located (placed) on the floor of the building directly or on a specially arranged base above the floor.

Section 1a Added, Rev. No. 1

1. General instructions

1.1. These standards and rules must be observed when designing new and reconstructed boiler plants (boiler rooms) with steam, hot water and steam boilers, regardless of performance, with a steam pressure of not more than 40 kgf / cm2 * and with a water temperature of not more than 200 ° C.
__________________
* Hereinafter, the absolute value is indicated

Note. These rules do not apply to the design of boiler houses for thermal power plants, mobile boiler houses, boiler houses with electrode boilers, heat recovery boilers, boilers with high-temperature organic heat transfer fluids (BOT) and other specialized types of boilers for technological purposes, boiler houses for apartment heating systems.

1.2. When designing boiler rooms with boilers subordinate to the USSR State Technical Supervision Agency (with a vapor pressure of more than 1.7 kgf / cm2 and a water temperature of more than 115 ° C), in addition to these norms and rules, it is necessary to observe, in particular, safety rules approved by the USSR State Technical Inspection.
1.3. Designing of new and reconstructed boiler houses should be carried out in accordance with the approved heat supply schemes.
In the absence of an approved heat supply scheme, the design of boiler rooms is allowed on the basis of relevant feasibility studies (TEO), agreed in the prescribed manner.
The type of fuel for boiler rooms is determined by agreement with fuel-containing organizations in the prescribed manner. At the same time, the use of solid or liquid fuels for roof boiler rooms is not allowed.

1.4. According to their purpose, boiler houses are divided into:
heating - to provide heat for heating, ventilation and hot water systems;
heating and production - to provide heat for heating, ventilation, hot water supply and for technological heat supply;
production - for technological heat supply.
1.5. Boilers for accommodation are divided into:
freestanding;
attached to buildings for other purposes;
built into buildings for other purposes, regardless of the floor of the placement;
roof.

(Amended edition, Amendment No. 1)

1.6. For industrial buildings of industrial enterprises designing of attached, built-in and roof boiler rooms is allowed. For boiler rooms attached to buildings of the specified purpose, the total capacity of installed boilers, the unit capacity of each boiler and the heat carrier parameters are not standardized. At the same time, the boiler rooms should be located near the walls, where the horizontal distance from the boiler room wall to the nearest opening should be at least 2 m, and the vertical distance from the boiler room ceiling to the nearest opening should be at least 8 m.
For boilers built into industrial buildings of industrial enterprises, when using boilers with steam pressure up to 1.7 kgf / cm2 and water temperature up to 115 ° С, the performance of boilers is not standardized. The performance of boilers with a steam pressure of more than 1.7 kgf / cm2 and a water temperature of more than 115 ° C should not exceed the values \u200b\u200bestablished by the Rules for the Construction and Safe Operation of steam and hot water boilers, approved by the State Technical Supervision of Russia.
Roof boiler rooms for industrial buildings of industrial enterprises may be designed using boilers with steam pressure up to 0.07 MPa and water temperature up to 115 ° С. thermal power such a boiler house should not exceed the heat demand for knowledge for the heat supply of which it is intended, but not more than 5 MW.
It is not allowed to place roof boiler rooms above production facilities and warehouses of categories A and B for explosive and fire hazard.

(Amended edition, Amendment No. 1)

1.7. The placement of boiler houses built into multi-apartment residential buildings is not allowed.
For residential buildings, the installation of attached and roof boiler rooms is allowed. The indicated boiler rooms can be designed using hot water boilers with a water temperature of up to 115 ° C. The heating capacity of the boiler room must not exceed the heat demand of the building for which it is intended for heat supply, and the heating capacity of the roof boiler should not exceed 3 MW.
It is not allowed to design attached boilers directly adjacent to residential buildings from the entrance entrances, and wall sections with window openings, where the horizontal distance from the external wall of the boiler room to the nearest living room window is less than 4 m, and the distance from the boiler room to the closest living room window vertically less than 8 m.
It is not allowed to place roof boiler rooms directly on the ceilings of residential premises (the overlapping of a residential premises cannot serve as the basis for the floor of a boiler room), as well as adjacent to residential premises.

(Amended edition, Amendment No. 1)

1.8. For public, administrative and domestic buildings, the design of built-in, attached and roof boiler rooms is allowed with the use of:
boilers with a temperature of heating water to 115 0 C.
steam boilers with saturated steam pressure up to 0.07 MPa, satisfying the condition
(T -100). V< 100 для каждого котла.
where:
t is the temperature of saturated steam at the design pressure, 0 C;
V - boiler water volume, m3;
In boiler rooms located in the basement, it is not allowed to place boilers designed to operate on gaseous and liquid fuels with a flash point of vapors below 45 0 С.
The total heat output of an individual boiler house must not exceed the heat demand of the building or structure for which it is intended for heat supply, in addition, the heat output must not exceed:
3 MW - for a roof boiler room and for a built-in boiler room with liquid and gaseous fuel boilers;
1.5 MW - for an integrated boiler room with solid fuel boilers.
The total heat output of the attached boiler houses is not limited.
It is not allowed to place attached boiler houses on the side of the main facade of buildings. The distance from the wall of the boiler building to the nearest window should be at least 4 m horizontally, and from the boiler room to the nearest window at least 8 m vertically. Such boiler rooms are also not allowed to be placed adjacent to, under and above the premises with the simultaneous stay of more than 50 people in them.
The design of roof, built-in and attached boiler rooms to the buildings of preschool and school facilities, to the medical and sleeping buildings of hospitals, clinics, sanatoriums and recreation facilities is not allowed.

(Amended edition, Amendment No. 1)

1.9. The design of boiler houses attached to the warehouses of combustible materials of flammable and combustible liquids is not allowed, with the exception of fuel depots for boiler rooms (paragraph 11.51 of these rules and regulations).
1.10. It is not allowed to place built-in boiler rooms under public premises (foyers and auditoriums, retail premises of shops, classrooms and classrooms of educational institutions, halls of dining rooms, restaurants, dressing rooms and soap baths, showers, etc.) and under warehouses of combustible materials.
1.11. Heat consumers for reliability of heat supply include:
to the first category - consumers, the violation of the heat supply of which is associated with a danger to people's lives or with significant damage to the national economy (damage to technological equipment, mass rejects of products);
the second category includes other heat consumers.
Lists of heat consumers of the first category are approved by the Union and Union-Republican ministries and departments in coordination with the USSR State Planning Commission and the USSR State Construction Committee.
1.12. Boilers for reliability of heat supply to consumers include:
to the first category - boiler houses, which are the only heat source of the heat supply system and provide consumers of the first category who do not have individual backup heat sources;
the second category includes the remaining boiler houses.
1.13. Thermal load for the calculation and selection of boiler equipment should be determined for three characteristic modes:
maximum winter - at an average outdoor temperature in the coldest five-day period;
the coldest month - at an average outdoor temperature in the coldest month;
summer - at the calculated outside temperature of the warm period (design parameters A).
The indicated average and calculated outdoor temperatures are accepted in accordance with building codes and rules for building climatology and geophysics and for designing heating, ventilation and air conditioning.
1.14. In order to heat buildings and structures with emergency heating or interruptions in the operation of heating systems, it should be possible to operate the boiler equipment under these conditions.
1.15. The design capacity of the boiler room is determined by the sum of the hourly heat consumption for heating and ventilation during the maximum winter mode, the estimated heat consumption for hot water supply, determined in accordance with construction standards and rules for designing hot water supply, and the estimated heat consumption for technological purposes. When determining the design capacity of a boiler room, the heat consumption for the boiler house’s own needs and the heat loss in the boiler room and heat networks should also be taken into account.

Note. Estimated heat consumption for technological purposes should be taken into account taking into account the possibility of non-coincidence of the maximum heat consumption by individual consumers.

1.16. The number and unit capacity of boiler units installed in the boiler room should be selected according to the design capacity of the boiler room, checking the operation mode of boiler units for the warm season; in case of failure of the boiler with the highest capacity in boiler rooms of the first category, the remaining ones must provide heat supply to consumers of the first category:
on technological heat supply and ventilation systems - in an amount determined by the minimum allowable loads (regardless of the outside temperature);
for heating and hot water supply - in an amount determined by the regime of the coldest month.
In the event of failure of one boiler, regardless of the category of boiler, the amount of heat supplied to consumers of the second category is not standardized.
The maximum number of boilers installed in the boiler room is determined on the basis of technical and economic calculations.
At least two boilers must be installed in boiler rooms, with the exception of production boiler rooms of the second category, in which one boiler can be installed.
1.17. In boiler house projects, factory and standard layouts of boiler units and auxiliary equipment should be adopted.
1.18. Boiler house projects should include:
boilers, economizers, air heaters, ash collectors and other equipment in a block transportable design of high factory readiness;
enlarged mounting blocks of pipelines and gas and air ducts;
enlargement of groups of technologically interconnected auxiliary equipment by assembling it into transportable mounting blocks with pipelines and fittings.
For built-in, attached and roof boiler rooms, automated boilers of full factory readiness should be provided.

(Amended edition, Amendment No. 1)

1.19. Outside buildings of boiler houses, in open areas, it is allowed to place draft machines, ash collectors, deaerators, decarbonizers, clarifiers, tanks for various purposes, fuel oil heaters; this should include measures to ensure reliable and safe operation, frost protection of pipelines and fittings, as well as measures to protect the environment from pollution and noise protection.
For climatic regions with an average temperature of the coldest five days below minus 30 ° C and for areas of dust storms, an open installation of draft machines can be provided, if allowed by the technical conditions or the operating instructions of the manufacturers.
The possibility of installing a roof boiler room on buildings of any purpose above the 26.5 m mark should be coordinated with the territorial bodies of the State Fire Service of the Ministry of Internal Affairs of Russia.

(Amended edition, Amendment No. 1)

1.20. The technological scheme and layout of the boiler equipment should provide:
optimal mechanization and automation of technological processes, safe and convenient maintenance of equipment;
installation of equipment in turns;
the smallest length of communication;
optimal conditions for mechanization repair work;
the possibility of entry into the boiler room of floor transport (forklift trucks, electric cars) for transportation of equipment nodes and pipelines during repair work.
For repair of equipment units, fittings and pipelines weighing more than 50 kg, as a rule, inventory lifting devices (electric cars, truck cranes) should be provided.
If it is impossible to service equipment using inventory devices for these purposes, it is allowed to provide stationary hoisting mechanisms (hoists, hoists, overhead and overhead cranes). Stationary lifting devices, necessary when performing only installation work, are not provided for by the project.
To ensure the repair of equipment installed in open areas, as a rule, ground-mounted rail cranes should be provided.
Automation of technological processes of individual boiler rooms should ensure safe operation without a permanent staff.

(Amended edition, Amendment No. 1)

1.21. In boiler rooms, it is necessary to provide repair sites or premises for routine repairs of equipment, fittings, control and regulation devices. In this case, it is necessary to take into account the possibility of carrying out maintenance work on the specified equipment by industrial enterprises or regional specialized organizations.
In autonomous boiler rooms, repair areas are not provided. Repair of equipment, fittings, control and regulation devices in such boiler rooms should be carried out only by specialized organizations that have the appropriate licenses, using their databases and inventory devices.

(Amended edition, Amendment No. 1)

1.22. The location of boilers and auxiliary equipment and boiler rooms (the distance between boilers and building structures, the width of the aisles), as well as the arrangement of platforms and ladders for servicing equipment, depending on the parameters of the coolant, should be provided for in accordance with the rules for the construction and safe operation of steam and hot water boilers approved by the Gosgortekhnadzor Russia, the rules for the design and safe operation of steam boilers with a steam pressure of not more than 0.07 MPa (0.7 kgf / cm2), boilers and water heaters with hot water temperature no higher than 338 K (115? C), approved by the Ministry of Construction of Russia, as well as in accordance with the passports and the operating instructions for the boiler.
For autonomous (individual) boiler houses operating without permanent attendants, the dimensions of the aisles are taken in accordance with the passports and instructions for the operation, installation and dismantling of equipment.

(Amended edition, Amendment No. 1)

1.23. Categories of explosive, explosive and fire hazard industries and the degree of fire resistance of buildings (premises) in boiler facilities should be taken in accordance with adj. 1 to these norms and rules, as well as in accordance with the Fire Safety Standards of NPB 105 - 95.

(Amended edition, Amendment No. 1)

2. General plan and transport

GENERAL PLAN

2.1. Land plots for the construction of boiler houses are selected in accordance with the heat supply scheme, planning and development projects of cities, towns and rural settlements, general plans of enterprises, general plans of groups of enterprises with common facilities (industrial units).
The dimensions of the land plots of boiler houses located in residential areas should be taken in accordance with building codes and rules for the planning and development of cities, towns and rural settlements.
2.2. When designing the master plan of the boiler room, it should be possible to place enlargement and assembly sites, warehouses, as well as temporary structures necessary for the period of construction and installation works.
2.3. Warehouses for fuel, reagents, materials, laboratories, as well as auxiliary rooms for boiler houses located on the sites of industrial enterprises, should be combined with similar buildings, premises and structures of these enterprises.
2.4. The main building, fuel facilities and ash and slag removal facilities, a transformer substation, a gas control station, a condensate collection and pumping station, hot water storage tanks, a water treatment building and a reagent farm should be located at the boiler house site.
The indicated buildings and structures may be combined, observing the requirements of Section 11 of these norms and rules.
For built-in and attached boiler rooms, closed warehouses for storing solid and liquid fuel located outside the boiler room and the building for which it is intended for heat supply should be provided, in accordance with SNiP 2.07.01-89.
The capacity of liquid fuel warehouses should not exceed the values \u200b\u200bestablished by building codes and rules for the design of oil and oil products warehouses for warehouses of the second group.
The fencing of boiler rooms should be designed in accordance with the Guidelines for the design of fencing sites and sites of enterprises, buildings and structures.
Buildings and structures of boiler houses located on the sites of industrial enterprises are not allowed to be fenced.

(Amended edition, Amendment No. 1)

2.5. Outside the boiler room, it is allowed to place fuel supply unloading devices, fuel depots, fuel oil facilities, condensate collecting and pumping stations, hot water storage tanks, pumping stations and fire and drinking water supply tanks, ash and slag dumps; at the same time, fuel oil facilities, hot water storage tanks, fire and drinking water tanks should have fences.
2.6. The drainage system from the boiler room should be designed open, and in the conditions of development, in conjunction with the production and rainwater networks of the enterprise or area in which the boiler room is located.
2.7. Distances to residential and public buildings should be taken:
from buildings and constructions of the boiler room, as well as from equipment installed on open areas — according to sanitary standards of the permissible noise level in residential buildings;
from warehouses of solid and liquid fuels, acids, alkalis and other potent toxic substances - according to special standards.
2.8. Ash and slag should be used for the needs of the construction and construction industries. If it is impossible to use them, ash dumps should be designed in compliance with the following conditions:
the size of the ash dump site should be provided taking into account the operation of the boiler house for at least 25 years with the allocation of the first stage of construction, designed to operate the boiler house for 10 years:
ash slag should be placed on unsuitable for agriculture land plots, near the site of the boiler room; at the same time, for ash and slag dumps, lowlands, ravines, wetlands, quarries to be improved should be used, taking into account the prospective development of the construction area.
When designing, protection of water bodies from ash and slag removal by rain or flood waters should be provided.

TRANSPORT

2.9. The transport scheme of the boiler house is taken on the basis of its estimated productivity, taking into account the priority of construction and prospects for expansion.
2.10. The mode of supply of rolling stock for unloading of the main or reserve fuel and reagents (weight rate of feeds, number and size of bets, duration of unloading, load capacity of wagons and tanks) is established by agreement with the authorities of the Ministry of Railways. When establishing the weighted feed rate, the storage capacity calculated in accordance with Section 11 of these rules and regulations should be taken into account.
2.11. The supply of loaded wagons and the empty wheeled haulage must be carried out by means of the Ministry of Railways or the industrial enterprise in whose territory the boiler room is located.
2.12. For boiler rooms with a capacity of more than 50 Gcal / h when delivering fuel or transporting ash and slag by road, the main road entrance connecting the boiler room site with an external road network should have two lanes.
For boiler rooms with a capacity of 50 Gcal / h or less, regardless of the method of fuel delivery and ash and slag removal, an access road with one lane should be provided.
2.13. Projects should provide for the possibility of access of vehicles to buildings and structures of boiler houses and to equipment installed in open areas.
Roads for road transport, providing the process, should have improved capital coatings

(text of the document with amendments and additions for November 2014)

Approved by

Order of the Ministry

regional development
Russian Federation
(Ministry of Regional Development of Russia)
dated June 30, 2012 N 281

SNiP II-35-76

ACS 91.140.10

Foreword

The goals and principles of standardization in the Russian Federation are established by the Federal Law of December 27, 2002 N 184-ФЗ "On Technical Regulation", and the rules for the development of codes of practice are established by Decree of the Government of the Russian Federation of November 19, 2008 N 858 "On the procedure for development and approval rulebooks. "

Rule Set Information

1. Executors: OAO SantekhNIIproekt, ZAO PromtransNIIproekt, NP Industrial Safety, FSBI VNIIPO EMERCOM of Russia.

2. Submitted by the Technical Committee for Standardization TC 465 "Construction".

3. Prepared for approval by the Department of Architecture, Construction and Urban Policy.

4. Approved by Order of the Ministry of Regional Development of the Russian Federation (Ministry of Regional Development of Russia) dated June 30, 2012 N 281 and entered into force on January 1, 2013.

5. Registered by the Federal Agency for Technical Regulation and Metrology (Rosstandart). Revision of SP 89.13330.2012 SNiP II-35-76. Boiler installations.

Information on amendments to this set of rules is published in the annually published information index "National Standards". In case of revision (replacement) or cancellation of this set of rules, the corresponding notification will be published in the monthly published information index "National Standards". Relevant information, notification and texts are also posted in the public information system - on the official website of the developer (Ministry of Regional Development of Russia) on the Internet.

Introduction

This set of rules establishes requirements for the design, construction, reconstruction, overhaul, expansion and technical re-equipment of boiler rooms, as well as establishes requirements for their safety and operational characteristics that ensure compliance with the requirements of Federal Law of December 30, 2009 N 384-ФЗ "Technical Regulation on the Safety of Buildings and Structures ", Federal Law of November 23, 2009 N 261-ФЗ" On energy conservation and on improving energy efficiency and on amendments to sensible legislative acts of the Russian Federation ", the Federal Law of July 22, 2009 N 123-FZ" Technical Regulations on Fire Safety Requirements "Federal Law of July 21, 1997 N 116-FZ" On industrial safety of hazardous production facilities. "

The main features of this set of rules are:

priority requirements aimed at ensuring reliable and safe operation of boiler rooms;

ensuring safety requirements established by technical regulations and regulatory, as well as federal norms and rules in the field of industrial safety, documents of federal executive bodies;

protection of the rights and interests of consumers of construction products protected by law by regulating the operational characteristics of heat supply and heat consumption systems;

expanding the possibilities of applying modern effective technologies, new materials and equipment for the construction of new ones, reconstruction, overhaul, expansion and technical re-equipment of existing boiler houses;

ensuring energy conservation and improving the energy efficiency of heat supply systems and heat consumption.

OJSC "SantekhNIIproekt" - Ph.D. tech. sciences A.Ya. Sharipov, engineers A.S. Bogachenkova, T.I. Sadovskaya;

ZAO PromtransNIIproekt - engineer Z.M. Green;

STC "Industrial Safety" - Dr. Tech. sciences, prof. V.S. Kotelnikov;

FSBI "VNIIPO" EMERCOM of Russia - Cand. Chem. sciences G.T. Zelensky.

1 area of \u200b\u200buse

1.1. This set of rules should be observed during the design, construction, reconstruction, overhaul, expansion and technical re-equipment of boiler houses operating on any type of fuel, with a total installed thermal power of 360 kW or more, with steam, hot water and steam boilers, with a steam pressure of not more than 3 , 9 MPa (40 kgf / cm2), inclusive, and with a water temperature of not more than 200 ° C, including installations for the combined generation of electricity for own needs.

1.2. This set of rules does not apply to the design of boiler plants for thermal power plants, including peak, mobile boiler houses, boiler houses with electrode boilers, recovery boilers, boilers with high-temperature organic heat transfer fluids (BOT) and other specialized types of boilers for technological purposes, as well as to the design of autonomous heat sources integrated into buildings.

1.3. This set of rules has no retroactive effect and cannot be applied in the control order for boiler houses and boiler houses built, the construction of which began within at least one year after the entry into force of this code of practice for design documentation developed in accordance with the instructions of the previous SNiP II- 35.

2. Normative references

SP 18.13330.2011 "SNiP II-89-80 *. Master plans of industrial enterprises"

SP 30.13330.2012 "SNiP 2.04.01-85 *. Internal water supply and sewerage of buildings"

SP 31.13330.2012 "SNiP 2.04.02-84 *. Water supply. External networks and structures"

SP 32.13330.2012 "SNiP 2.04.03-85. Sewerage. External networks and structures"

SP 33.13330.2012 SNiP 2.04.12-86. Strength analysis of steel pipelines

SP 34.13330.2012 "SNiP 2.05.02-85. Highways"

SP 37.13330.2012 "SNiP 2.05.07-91 *. Industrial transport"

SP 42.13330.2011 "SNiP 2.07.01-89 *. Urban planning. Planning and development of urban and rural settlements"

SP 43.13330.2012 SNiP 2.09.03-85. Construction of industrial enterprises

SP 44.13330.2011 "SNiP 2.09.04-87 *. Administrative and domestic buildings"

SP 50.13330.2012 SNiP 23-02-2003. Thermal protection of buildings

SP 51.13330.2011 "SNiP 23-03-2003. Protection against noise"

SP 52.13330.2011 "SNiP 23-05-95 *. Natural and artificial lighting"

SP 56.13330.2011 "SNiP 31-03-2001. Industrial buildings"

SP 60.13330.2012 "SNiP 41-01-2003. Heating, ventilation and air conditioning"

SP 61.13330.2012 "SNiP 41-03-2003. Thermal insulation of equipment and pipelines"

SP 62.13330.2011 "SNiP 41-02-2003. Gas distribution systems"

SP 74.13330.2012 SNiP 2.04.86 *. Heating networks

SP 90.13330.2012 "SNiP II-58-75. Thermal power plants"

SP 110.13330.2012 SNiP 2.11.03-93. Warehouses for oil and oil products. Fire safety standards

SP 119.13330.2012 "SNiP 32-01-95. Railways gauge 1520 mm"

SP 131.13330.2012 "SNiP 23-01-99. Construction climatology"

SanPiN 2.2.4.548-96. Hygienic requirements for the microclimate of industrial premises

SanPiN 2.2.1 / 2.1.1.1031-01. Sanitary protection zones and sanitary classification of enterprises, structures and other objects

SanPiN 2.1.6.1032-01. Hygienic requirements for ensuring the quality of atmospheric air in populated areas

SanPiN 2.1.4.2496-09. Hygienic requirements for ensuring the safety of hot water systems

SanPiN 2.1.4.2552-09. Hygienic safety requirements for materials, reagents, equipment used for water treatment and water treatment

SanPiN 2.1.4.2580-09. Drinking water. Hygienic requirements for water quality of centralized drinking water supply systems. Quality control. Hygienic requirements for ensuring the safety of hot water systems

SanPiN 4630-88. Rules for the protection of surface waters from pollution

SP 3.13130.2009. Fire protection system. Warning and evacuation management system in case of fire. Fire safety requirements

SP 4.13130.2009. Fire protection system. Limiting the spread of fire at defense facilities. Requirements for space-planning and structural solutions

SP 5.13130.2009. Fire protection system. Automatic fire alarm and fire extinguishing installations. Norms and design rules

SP 8.13130.2009. Fire protection system. Sources of external fire water supply. Fire safety requirements

SP 9.13130.2009. Fire fighting equipment. Fire extinguishers. Operating requirements

SP 10.13130.2009. Fire protection systems. Internal fire water supply. Fire safety requirements.

SP 12.13130.2009. Definition of categories of premises, buildings and outdoor installations for explosion and fire hazard. Fire safety requirements

GOST 12.2.002-80 *. Conveyors. General requirements safety

GOST 19.101-77. Types of programs and program documents

GOST 34.601-90. Automated systems. Stages of creation

GOST 34.602-69. Terms of Reference for the creation of an automated system

GOST 2761-64 *. Sources of centralized drinking water supply. Hygienic, technical requirements and selection rules

GOST 2874-82 *. Drinking water. Hygiene requirements and quality control

GOST 9544-2005. Pipeline valves Classes and standards for valve tightness

GOST 16860-88 *. Thermal deaerators. Types, main parameters, acceptance, control methods

GOST 20995-75 *. Stationary steam boilers with pressure up to 3.9 MPa. Feed water and steam quality indicators

GOST 21204-97. Industrial gas burners. General technical requirements

GOST 23838-89. Buildings of enterprises. Options.

Note. When using this set of rules, it is advisable to check the validity of reference standards and classifiers in the public information system - on the official website of the national body of the Russian Federation for standardization on the Internet or according to the annually published index "National Standards", which was published as of January 1 of this year, and the relevant monthly published information signs published this year. If the referenced document is replaced (changed), then when using this set of rules should be guided by the replaced (changed) document. If the referenced document is canceled without replacement, the provision in which the link to it is given shall apply to the extent not affecting this link.

3. Terms and definitions

3.1. Boiler room: a complex of buildings and structures with boiler plants and auxiliary technological equipment designed to generate heat for heat supply.

3.2. Block-modular boiler room: a free-standing boiler room, consisting of blocks of technological equipment located in the building module.

3.3. Boiler installation: a boiler (boiler unit) together with burner, furnace draft blowers, mechanisms for removing combustion products and the use of thermal energy of flue gases (economizers, air heaters, etc.) and equipped with automatic control, monitoring and signaling of the process of generating heat carrier of specified parameters .

3.4. Consumer of thermal energy: a building or structure of any purpose, consuming thermal energy for heating, ventilation and hot water supply, production or technological equipment, the technological process in which occurs with the consumption of steam, superheated or hot water.

3.5. Thermal energy transport system: a complex of pipelines and structures on them that deliver thermal energy to the consumer.

3.6. Thermal energy distribution system: a complex of structures and technical devices that distribute thermal energy between consumers.

3.7. The heat supply system is open: a water heat supply system in which water circulating in the heating network partially or completely is withdrawn from the system for the needs of hot water supply to consumers.

3.8. The heat supply system is closed: a water heat supply system in which the water circulating in the heating network is used only as a heat transfer medium and is not taken from the network.

3.9. Heat supply: a complex of systems, structures and devices designed to generate, transport and distribute heat energy in the form of steam, superheated or hot water for heating, ventilation, air conditioning and hot water supply of buildings for various purposes, as well as for production and technological needs of industrial enterprises.

3.10. Centralized heat supply: heat supply to a large residential area of \u200b\u200ban industrial complex, united by a common heating network from one or more sources of thermal energy.

3.11. Decentralized heat supply: heat supply to one consumer from one heat source.

3.12. Energy efficiency of the heat supply system: an indicator characterizing the ratio of the physical heat energy of the fuel used (used up by the energy) used by the consumer to the heat of the total spent fuel.

4. General

4.1. The composition of the sections of design documentation and the requirements for their content are given in.

4.2. Equipment and materials used in the design of boiler houses, in cases established by documents in the field of standardization, must have certificates of compliance with the requirements of the norms and standards of Russia, as well as permission of Rostekhnadzor for their use.

4.3. When designing boiler rooms with steam and hot water boilers with a steam pressure of more than 0.07 MPa (0.7 kgf / cm2) and with a water temperature of more than 115 ° C, the relevant norms and rules in the field of industrial safety, as well as documents in the field of standardization, must be observed.

4.4. Designing of new and reconstructed boiler houses should be carried out in accordance with the heat supply schemes developed and agreed upon in the established order or with the justification of investment in construction adopted in the schemes and projects of district planning, master plans of cities, towns and rural settlements, planning projects for residential, industrial and other functional zones or individual objects c.

4.5. Designing boiler rooms for which the type of fuel is not defined in the established manner is not allowed. The type of fuel and its classification (basic, if necessary emergency) is determined by agreement with the regional authorized authorities. The quantity and delivery method must be agreed with the fuel supply organizations.

4.6. Boiler houses for their intended purpose in the heat supply system are divided into:

central to the district heating system;

peaks in the system of centralized and decentralized heat supply based on the combined generation of heat and electric energy; Autonomous decentralized heat supply systems.

4.7. According to their purpose, boiler houses are divided into:

heating - to provide thermal energy for heating, ventilation, air conditioning and hot water systems;

heating and production - to provide thermal energy for heating, ventilation, air conditioning, hot water, process heat supply systems;

production - to provide thermal energy for technological heat supply systems.

4.8. Boiler houses according to the reliability of the supply of thermal energy to consumers (according to SP 74.13330) are divided into boiler houses of the first and second categories.

boiler houses, which are the only source of heat energy from the heat supply system;

boiler houses providing thermal energy to consumers of the first and second categories who do not have individual backup sources of thermal energy. Lists of consumers by category are set in the design assignment.

4.9. In boiler rooms with steam and steam boilers with a total installed heat capacity of more than 10 MW, in order to increase reliability and energy efficiency, for feasibility studies, it is recommended to install low-power steam turbine generators with a voltage of 0.4 kV with steam backpressure turbines to cover electrical loads of the boiler house’s own needs or enterprises in the territory of which they are located. The exhaust steam after the turbines can be used: for technological steam supply to consumers, for heating water from heating systems, for the boiler house's own needs.

The design of such installations should be in accordance with.

In hot water boilers operating on liquid and gaseous fuels, for these purposes, the use of gas turbine or diesel units is allowed.

When designing an electric power superstructure for generating electric energy for the boiler house’s own needs and / or transferring it to the network, it should be carried out in accordance with,. If the requirements for reliability and safety established by regulatory documents are not enough for the development of design documentation, or such requirements are not established, special technical conditions should be developed and approved in the established manner.

4.10. For the heat supply of buildings and structures from block-modular boiler houses, it should be possible to operate the boiler equipment without constantly present personnel.

4.11. The calculated heat capacity of a boiler house is defined as the sum of the maximum hourly expenses of thermal energy for heating, ventilation and air conditioning, the average hourly expenses of thermal energy for hot water supply and the costs of thermal energy for technological purposes. When determining the estimated heat capacity of a boiler house, the expenses of heat energy for the boiler’s own needs, losses in the boiler room and heat networks should be taken into account, taking into account the energy efficiency of the system.

4.12. The estimated costs of thermal energy for technological purposes should be taken on the design assignment. In this case, the possibility of mismatch of the maximum heat energy consumption for individual consumers should be taken into account.

4.13. The estimated hourly costs of thermal energy for heating, ventilation, air conditioning and hot water supply should be taken on the design assignment, in the absence of such data - determined by SP 74.13330, as well as recommendations.

4.14. The number and capacity of boilers installed in the boiler room should be selected, ensuring:

design capacity (boiler thermal power) according to 4.11;

stable operation of boilers with a minimum permissible load in the warm season.

In case of failure of the boiler with the highest capacity in boiler rooms of the first category, the remaining boilers must provide heat supply to consumers of the first category:

on technological heat supply and ventilation systems - in an amount determined by the minimum allowable loads (regardless of the outside temperature);

for heating and hot water supply - in an amount determined by the regime of the coldest month.

If one boiler fails, regardless of the boiler room category, the amount of thermal energy supplied to consumers of the second category should be provided in accordance with the requirements of SP 74.13330.

The number of boilers installed in boiler rooms and their performance should be determined on the basis of technical and economic calculations.

At least two boilers should be installed in boiler rooms; in production boilers of the second category - the installation of one boiler.

4.15. In boiler house projects, boilers, economizers, air heaters, backpressure turbines, gas turbine and gas reciprocating plants with 0.4 kV generators, ash collectors and other equipment in a block transportable design with full factory and installation readiness should be used by manufacturers.

4.16. Projects of blocks of auxiliary equipment with pipelines, automatic control, regulation, signaling systems and electrical equipment of high factory readiness are developed by order and assignments of installation organizations.

4.17. Outdoor installation of equipment in various climatic zones is possible if it is allowed by the manufacturers' instructions and meets the noise characteristics of the requirements of SP 51.13330 and.

4.18. The layout and placement of the technological equipment of the boiler room should provide:

conditions for mechanization of repair work;

the ability to use during repair work of hoisting-and-transport mechanisms and devices.

For repair of equipment units and pipelines weighing more than 50 kg, inventory hoisting devices should be provided, as a rule. If it is not possible to use inventory hoisting devices, stationary hoisting devices (hoists, hoists, overhead and bridge cranes) should be provided.

4.19. In boiler rooms, on a design basis, repair areas or premises for repair work should be provided. In this case, it is necessary to take into account the possibility of repairing the specified equipment by the relevant services of industrial enterprises or specialized organizations.

4.20. The main technical decisions adopted in the project should provide:

reliability and safety of equipment;

maximum energy efficiency of the boiler room;

economically reasonable costs of construction, operation and repair;

labor protection requirements;

required sanitary conditions for maintenance and repair personnel;

environmental requirements.

4.21. Thermal insulation of the equipment of boiler houses, pipelines, fittings, gas ducts, air ducts and dust pipes should be provided taking into account the requirements of SP 60.13330 and SP 61.13330.

5. General plan and transport

5.1. Master plans for boiler rooms should be developed in accordance with the requirements given in SP 18.13330, taking into account the requirements of these rules.

5.2. Design of railway, road and continuous transport nodes for boiler houses should be carried out in accordance with the requirements specified in SP 37.13330, SP 56.13330, SP 34.13330.

5.3. The selection and allocation of land for the construction of a boiler house should be made in accordance with the planning and development projects of cities, towns and rural settlements, general plans of enterprises, general plans of groups of enterprises (industrial units) and heat supply schemes of these facilities in the manner established in.

The dimensions of the land plots of boiler houses located in residential areas should be taken in accordance with the requirements given in SP 42.13330.

For large-capacity boiler houses that perform the functions of thermal stations, the size of land should be determined by the project.

5.4. The layout of the master plan of the boiler room should be decided taking into account the approaches of railways and highways, the conclusions of engineering communications and the most rational technological connections in conjunction with the general scheme for the development of the district (quarter, node) and taking into account architectural requirements.

The procedure for coordinating the location of the boiler room and its structures, which may threaten the flight safety of aircraft or interfere with the normal operation of the radio equipment of the aerodrome services, as well as the size of land should be taken in accordance with the requirements specified in SP 43.13330.

5.5. When designing the master plan of the boiler room, it should be possible to place enlargement and assembly sites, warehouses, as well as temporary structures necessary for the period of construction and installation works.

5.6. Warehouses for fuel, reagents, materials, laboratory facilities, as well as auxiliary rooms for boiler houses located on the sites of industrial enterprises should be combined with similar buildings, premises and structures of these enterprises.

5.7. When designing boiler rooms, the main building of the boiler room should be provided; if necessary, a separate machine room building can be provided for the installation of turbine generators, fuel facilities and ash and slag removal facilities, a transformer substation, a gas control station, a condensate collection and pumping station, hot water storage tanks, a water treatment building and a reagent farm.

These buildings and structures may be combined, observing the requirements of section 13.

The capacity of liquid fuel warehouses should not exceed the values \u200b\u200bestablished in SP 42.13330 for warehouses of the second category.

5.8. The territory of the boiler room must have fencing, with the exception of cases of its placement on the territory of an industrial enterprise.

5.9. Outside the boiler room site, it is allowed to place fuel supply unloading devices, fuel depots, fuel oil facilities, condensate collecting and pumping stations, hot water storage tanks, pumping stations and fire and drinking water supply tanks, ash and slag dumps with the designation of land allotments in the established order.

5.10. The territory of fuel oil facilities should have a fence, if it is not located on the territory of an industrial enterprise.

5.11. Hot water storage tanks, fire and drinking water tanks must have fences in accordance with the requirements of Section 11.

5.12. The drainage system from the boiler room should be designed open, and in the conditions of development - in conjunction with the production and storm sewer networks of the enterprise or the district in which the boiler room is located according to technical conditions, in accordance with.

5.13. Distances from buildings and structures to a separate boiler room, as well as equipment located on open areas, to residential and public buildings must be determined in accordance with SanPiN 2.2.1 / 2.1.1.1031.

5.14. Ash and slag dumps should be designed taking into account the possibility of complex processing of waste ash and slag for construction needs using waste-free technology. If it is impossible to use ash and slag for the construction needs, ash and slag dumps should be designed in compliance with the following conditions:

the size of the ash dump site should be provided taking into account the operation of the boiler house for at least 25 years with the allocation of the first stage of construction, designed to operate the boiler house for 10 years;

ash and slag dumps should be placed on unsuitable agricultural land plots near the boiler room site;

for ash and slag dumps, lowlands, ravines, wetlands, quarries, should be used, taking into account the prospective development of the construction area.

5.15. Transportation of slag and ash to the dump should be carried out taking into account environmental protection requirements in accordance with,,. On ash dumps, measures should be taken to protect water bodies from ash and slag removal by rain and flood waters, as well as from wind erosion.

5.16. The choice of the scheme and system for transporting the boiler room should be done according to SP 37.13330 and based on a feasibility study, based on its estimated capacity, location of the boiler room, construction sequence and expansion prospects.

5.17. During railway service, the mode of supply of rolling stock for unloading (weight rate of supply, number and size of bids, duration of unloading, load capacity of wagons and tanks) are established in agreement with the adjoining station.

When establishing the weighted feed rate, the boiler fuel storage capacity and the water treatment reagent storage capacity calculated in accordance with 13 and 12 of these rules should be taken into account.

5.18. For boiler houses, when delivering fuel or transporting ash and slag by road, the main road entrance connecting the boiler room site with an external road network must have two lanes or a looped road.

5.19. The projects should provide for the possibility of access of vehicles to buildings and structures of boiler houses and to equipment installed in open areas.

5.20. Roads for road transport must have hard surfaces.

5.21. For the transportation of liquid fuels and ash and slag waste, special vehicles should be provided.

6. Space-planning and structural solutions

6.1. When designing buildings and structures of boiler houses, one should be guided by the requirements given in SP 42.13330, SP 110.13330, SP 56.13330, SP 43.13330 and this set of rules.

6.2. When designing boiler rooms, a unified architectural and compositional solution for all buildings and structures, the simplicity and expressiveness of facades and interiors should be provided, as well as the use of economical structures and finishing materials.

6.3. The appearance, materials and color of the exterior walling of boiler houses should be chosen, taking into account the architectural appearance of buildings and structures located near.

6.4. Enclosing and construction materials for boiler rooms, subject to mandatory certification, must have a technical certificate, sanitary-hygienic and fire certificate of compliance with the requirements of Russian norms and standards.

6.5. The geometric parameters of buildings and structures, the dimensions of the spans, the steps of columns and the heights of floors must comply with the requirements given in GOST 23838.

The dimensions of the spans of shelves are allowed to be taken in multiples of 1.5 m.

6.6. The height of the built-in mezzanines or platforms for equipment should be taken according to the technological requirements and assigned them in multiples of 0.3 m.

6.7. The arrangement of rooms and attic floors above the boilers is not allowed. This requirement does not apply to boilers installed in industrial premises.

6.8. The installation site of boilers in industrial premises should be separated from the rest of the room by fireproof partitions along the entire height of the boiler, but not lower than 2 m, with the doors installed.

6.9. In the building of the boiler room, household and office premises should be provided.

In the boiler house building it is not allowed to place household and office premises not intended for boiler room personnel, as well as workshops not intended for repairing boiler equipment.

6.10. Each floor of the boiler room must have at least two exits located on opposite sides of the room. One exit is allowed if the floor area is less than 200 m2 and there is a second evacuation exit to the external stationary staircase, and in single-storey boiler rooms - when the length of the room along the front of the boilers is not more than 12 m.

6.11. The exit doors from the boiler room must open outward from the touch of a hand, have no locks from the boiler room and do not lock during the operation of the boilers. Exit doors from the boiler room to office, household, and auxiliary production rooms must be spring-loaded and open towards the boiler room.

6.12. At the gates of the boiler room, through which fuel is supplied and ash and slag are removed, it is necessary to arrange a vestibule or an air curtain. The dimensions of the vestibule should ensure safety and ease of maintenance when supplying fuel or removing ash and slag.

6.13. Space-planning and structural solutions of buildings and structures of boiler houses should allow the possibility of their expansion.

6.14. For the installation of large-block equipment in the walls and ceilings of boiler houses, mounting openings should be provided. Such openings should be provided for by the expansion of the boiler room.

6.15. The mark of the clean floor of the boiler room should be taken 0.15 m above the planning level of land near the boiler building. The placement of pits in the zone of the boiler is not allowed. It is allowed to arrange pits under the boilers, if such a need is caused by the conditions of service of the boiler. In this case, ventilation of the pit should be provided.

6.16. In buildings and rooms of boiler houses with obvious excessive heat dissipation, the value of resistance to heat transfer of the external enclosing structures is not standardized, with the exception of the enclosing structures of the area with permanent residence of workers (to a height of 2.4 m from the level of the working platform), for which it is selected, in accordance with SP 50.13330 .

6.17. When designing buildings and structures of boiler houses, one should be guided by the nomenclature of unified prefabricated reinforced concrete and metal structures, observing the requirements for the general site unification of structures, products and materials.

6.18. Bearing structures of buildings and structures of boiler houses, as a rule, should be designed based on the conditions of work zero cycle before mounting the frame and equipment.

6.19. Overlapping of channels laid in the boiler rooms should be provided by prefabricated at the level of a clean floor.

Overlapping sections of canals where, under operating conditions, plate removal is necessary, the mass of the removable shield or plate should not exceed 50 kg.

6.20. The design of the channels and floors should be designed for the loads from moving the equipment from the mounting openings to the place of its installation and should provide the possibility of passage of hoisting mechanisms.

6.21. The distance from the platforms or the upper part of the boiler lining, from which the valves, headsets, instrumentation is serviced, to the bottom of the protruding structures of the boiler floor (coating) must be at least 2 m.

The distance from the floor to the bottom of the service and communications sites at the passages below them should be at least 2 m.

6.22. If the boiler is not serviced in the upper part of the lining and there is no need to go along the top of the boiler, through a drum, a steam boiler or an economizer, then the distance from the upper part of the lining to the bottom of the protruding floor structures (cover) should be at least 0.7 m.

6.23. The placement of boilers and auxiliary equipment in boiler rooms operating with the constant presence of maintenance personnel (the distance between the boilers and building structures, the width of the aisles), as well as the arrangement of platforms and stairs for servicing equipment, depending on the parameters of the coolant, should be provided in accordance with. For modular boiler rooms and boiler houses operating without the constant presence of maintenance personnel, the dimensions of the aisles are taken into account the design features of the block module, which allow to comply with the above standards and provide free access to equipment during maintenance, installation and dismantling of equipment and due to easily removable structures block module.

6.24. The distance from the front of the boilers or protruding parts of the furnace to the opposite wall of the boiler room should be at least 3 m.

For boilers having a grate length (served from the front) of not more than 1 m, and also for boilers running on liquid and gaseous fuels, this distance can be reduced to 2 m. Moreover, for boilers equipped with gas burners and burners for liquid fuel, the distance from the protruding parts of the burners to the opposite wall should be at least 1 m, and for boilers equipped with mechanized furnaces, the distance from the protruding parts of the furnaces should be at least 2 m.

6.25. When designing boiler rooms with steam and hot water boilers with a steam pressure of not more than 0.07 MPa (0.7 kgf / cm2) and with a water temperature of not higher than 115 ° C, the following must be provided:

the width of the aisles between the boilers, between the boiler and the wall of the room must be at least 1 m, the width of the aisles between the individual protruding parts of the boilers, as well as between these parts and the protruding parts of the building, stairs, work platforms and other protruding structures - at least 0.7 m .

When installing boilers requiring lateral maintenance, the width of the aisles between the boilers or between the boiler and the room wall must be at least 1.5 m;

in the absence of the necessary lateral maintenance of the boilers, it is necessary to install at least one passage between the boilers or between the outermost boiler and the boiler wall. The width of these walkways, as well as the width between the boilers and the rear wall of the boiler room should be at least 1 m.

When installing boilers near walls or columns, the lining of the boilers should not be adjacent to the wall of the boiler room, but separated from it by at least 70 mm;

the distance between the boilers is not less than 5 m, if the front of the boilers or protruding parts of the furnaces is located opposite one another, then the distance between them should be at least 5 m.

For boiler houses operating on liquid or gaseous fuels, the distance between the fronts of the boilers should be at least 4 m, and the distance between the burners should be at least 2 m.

Note. Before the front of the boilers, it is allowed to install pumps, fans, and also store solid fuel supplies for no more than one change in the operation of the boilers. At the same time, the width of free passages along the front of the boilers should be at least 1.5 m, and the installed equipment and fuel should not interfere with the maintenance of furnaces and boilers.

6.26. When designing boiler rooms with steam and hot water boilers with a steam pressure of more than 0.07 MPa (0.7 kgf / cm2) and with a water temperature above 115 ° C, the distance from the front of the boilers or protruding parts of the furnaces to the opposite wall of the boiler building, the distance between the front of the boilers and protruding parts of the furnaces located opposite each other, the width of the aisles should be performed according to.

6.27. Machines and devices not related to the maintenance and repair of boilers cannot be installed in the same room as boilers.

6.28. For convenient and safe maintenance of the boiler, its fittings and headsets, permanent stairs and platforms made of non-combustible materials, equipped with metal railings, must be installed.

6.29. Metal platforms and stairs can be made:

from corrugated sheet steel or from sheets with a non-smooth surface obtained by surfacing or in another way;

made of honeycomb or strip steel (per rib) with a mesh size of not more than 12 cm;

from expanded metal sheets.

It is not allowed to use smooth platforms and steps, as well as to make them from bar (round) steel.

Stairs with a height of more than 1.5 m designed for the systematic maintenance of equipment should have an angle of inclination to the horizontal of no more than 50 °.

The dimensions of the stairs must be: in width - not less than 600 mm, in height between the steps - not more than 200 mm and in the width of the step - not less than 80 mm. Stairs should have platforms every 3 to 4 m in height.

The width of the platforms intended for the maintenance of fittings, instrumentation and control devices should be at least 800 mm, and the rest of the sites should be at least 600 mm.

The vertical distance from the service areas of water indicating devices to the middle of the water indicating walls should be at least 1 m and not more than 1.5 m.

The platforms and the upper part of the lining of the boilers from which the service is carried out must have a metal railing with a height of at least 0.9 m with continuous lining down to a height of at least 100 mm.

6.30. The floors of the boiler room must be made of non-combustible materials with a non-smooth and non-slip surface; they must be flat and have devices for draining water into the sewer.

Channels in the boiler room must be closed with removable plates at the level of a clean floor.

Metal channel overlays should be made of corrugated steel.

Pits and indentations that do not close must be protected by handrails with a height of at least 0.9 m.

6.31. When designing boiler rooms, technological equipment with static and dynamic loads that do not cause stresses in the underlying concrete layer of the floor that exceed the stresses from the effects of mounting and transport loads should be installed without foundations.

6.32. The area and placement of window openings in the external walls should be determined from the conditions of natural light, as well as taking into account the requirements for the required area of \u200b\u200bthe opening openings. The area of \u200b\u200bwindow openings should be minimally necessary.

The coefficient of natural light during side lighting in buildings and constructions of boiler houses should be taken equal to 0.5, except for the premises of laboratories, automation panels, rooms of central control posts and repair shops for which the coefficient of natural light should be taken equal to 1.5.

The coefficient of natural illumination of the premises of stand-alone water treatment plants should be taken in accordance with SP 52.13330.

For boiler rooms operating without constantly present personnel, the area and placement of window openings should be determined taking into account the placement of easily discharged structures (LSC).

6.33. Permitted levels for boiler rooms sound pressure and sound levels at permanent workplaces and at control and control panels should be taken in accordance with.

6.34. Boiler houses located in the residential area must provide a sound pressure level in accordance with SP 51.13330. At the same time, projects should include measures to suppress structural noise and vibration and the impossibility of their transfer by building structures to other rooms.

6.35. The gates of the boiler room through which fuel is supplied, remove ash and slag, must have a vestibule or air curtain in accordance with the requirements specified in SP 60.13330.

6.36. The internal surfaces of the enclosing structures of the fuel supply, dust preparation rooms and boiler rooms when burning solid fuel should be smooth and painted with moisture-resistant and fire-resistant paints in bright colors. Existing protrusions and window sills should be sloped at an angle of 60 ° to the horizontal and painted with moisture-resistant paints.

The floors of these rooms should be designed taking into account the use of hydraulic dust collection.

6.37. Conveyor galleries at their junctions with boiler houses should not rest on the frame and building envelope.

6.38. Heated elevated conveyor galleries should be located above bearing structures flyovers.

6.39. Bunkers for raw coal and dust should be designed in accordance with SP 90.13330.

6.40. To determine the composition of special household premises and devices, the list of boiler house occupations by categories of work should be taken in accordance with Appendix B.

6.41. With the number of employees in the boiler room in the most numerous shift more than 30 people. the composition of domestic premises, public catering and cultural services is adopted in accordance with SP 44.13330.

With the number of employees in the boiler room in the most numerous shift from 6 to 30 people. the following premises should be provided: the room of the head of the boiler room or office, dressing rooms with washbasins, latrines, showers, a room for eating, a heating room and a pantry for equipment.

With the number of employees in the boiler room up to 5 people. the shift does not provide for the room of the head of the boiler room (administrative room), as well as a wash basin in the dressing room.

In boiler rooms operating without the constant presence of maintenance personnel, a restroom and wash basin should be provided.

6.42. In separate buildings of liquid fuel pumping stations with permanent attendants, a dressing room, a lavatory, a shower room, a heating room should be provided. In separate buildings, water treatment should include a dressing room, restroom, shower.

6.43. In the boiler room, when the equipment is located at several elevations (zero, control platform, intermediate floors), repair areas should be provided for transportation and placement of materials and equipment during the repair with a load on the floor of 0.05 - 0.15 MPa.

6.44. Regardless of the type of hoisting mechanisms for repair work, the boiler room should include elevators for maintenance personnel based on one passenger-and-freight elevator for 4 steam boilers with a unit capacity of 100 t / h or more, or 4 hot water boilers with a thermal capacity of 116.3 MW or more each.

6.45. In boiler rooms, a room for storing spare parts should be provided. The lack of a warehouse should be justified by the terms of reference for the design.

7. Fire safety

7.1. Fire safety measures provided for in the design of boiler rooms must meet the requirements given in and.

7.2. Buildings, premises and facilities of boiler houses are classified by functional fire hazard to class F 5.1.

7.3. Buildings of free-standing and block-modular boiler houses should be carried out I and II degree of fire resistance of fire hazard class C0, III degree of fire resistance of fire hazard classes C0 and C1. Buildings of free-standing boiler houses, belonging to the second category in terms of reliability of heat supply to consumers, can also be carried out IV degree of fire resistance of fire hazard class C0, C1 and C2.

7.4. When a boiler room with a closed solid fuel storage is blocked, the latter must be separated by a type 1 fire wall with a fire resistance rating of at least REI 150.

7.5. The above-hopper fuel supply galleries should be separated from the boiler rooms by fireproof partitions (without openings) of the 2nd type with a fire resistance limit of at least EI 15. It is allowed, as an exception, to arrange a doorway in the specified partition as an evacuation exit through the boiler room. At the same time, the communication between the super-bunker gallery and the boiler room should be through the vestibule. The fire resistance of the fencing of the vestibule should be at least REI 45, and the fire resistance of the doors in the partition and the vestibule should be at least EI 30.

7.6. The external enclosing structures of the ground part of buildings and premises of fuel supply systems should be designed on the basis that the area of \u200b\u200beasily ejected structures should be at least 0.03 m2 per 1 m3 of room space.

7.7. When using solid fuel in boiler rooms, dust preparation rooms, the area of \u200b\u200beasy-to-discharge structures should be determined from the calculation of:

with a free volume of the boiler room up to 10000 m3 - 0.015 m2 per 1 m3 of free space;

with a free volume of the boiler room of more than 10,000 m3 - 0.006 m2 per 1 m3 of free volume.

7.8. When using liquid and gaseous fuels in the boiler room, it is necessary to provide easily removable building envelopes at the rate of 0.03 m2 per 1 m3 of the free volume of the room in which the boilers, fuel supply equipment and pipelines are located.

7.9. As easy-to-clean structures, glazing of windows and lamps should be used, as a rule. Application for filling windows of reinforced glass, glass blocks and fiberglass is not allowed.

7.10. When glazing is provided for as easily removable structures, the area and thickness of individual glass sheets (in window frames) must satisfy the requirements specified in SP 56.13330.

In the fuel supply and dust preparation rooms, window frames should be metal.

7.11. If it is not possible to provide the required glazing area, it is allowed to use enclosing structures as easily removable structures, as a rule, a ceiling from steel, aluminum and asbestos-cement sheets and effective insulation, or to provide explosive channels connected to an external discharge.

7.12. Electrical facilities should be designed taking into account.

The fire resistance limit of the enclosing structures of the premises in which the electrical equipment is located with an amount of oil per unit of equipment of 60 kg or more should be at least REI 45.

Floors in electrical rooms must be dust-free.

The boiler room equipment with primary fire extinguishing equipment must comply with the requirements specified in SP 9.13130.

The need to equip the boiler room with an automatic fire alarm installation or an automatic fire extinguishing installation is determined in accordance with the requirements specified in SP 5.13130.

7.13. The walls inside the boiler house industrial buildings should be smooth and painted with waterproof paint in bright colors; the floor of the boiler room should be made of non-combustible and easily washed materials.

8. Boiler plants

8.1. For boiler houses, depending on the purpose, heat generator should be used boiler plants with steam, steam and hot water boilers. Productivity, efficiency, aerodynamic and hydraulic drag, emission of harmful emissions and other parameters of the operation of boilers should be taken according to the manufacturer (company).

Boiler houses that produce water with a temperature of more than 95 ° C as a coolant must be provided with two independent power sources.

For boiler houses with steam boilers with a total installed heat capacity of more than 10 MW, 0.4 kV turbogenerators can be used as the second independent power source. The type and number of turbogenerators are justified by calculation.

For boiler houses operating on liquid or gaseous fuels, electric generators driven by diesel engines operating on liquid fuels, or gas turbine and gas reciprocating plants operating on gaseous fuels can be used as the second power source.

8.2. The main requirement for the choice of the design of boilers, water heaters and their main parts is to ensure reliable, durable and safe operation at the design parameters during the estimated life of uptime adopted in the technical conditions, as well as the possibility of technical examination, cleaning, flushing and repair.

8.3. The organization (enterprise) responsible for the selection of the design and materials of boilers, water heaters and their elements, strength analysis, quality of manufacture, installation, commissioning and repair, as well as compliance with their standards, is responsible for the work.

All changes to the project, the need for which arose during the repair or commissioning process, must be agreed with the design organization.

8.4. Parts of boilers, water heaters and pipelines with elevated surface temperatures, accessible for service personnel, must be covered with thermal insulation, providing an external surface temperature of not more than 45 ° C at an ambient temperature of not more than 25 ° C.

8.5. Depending on the type of fuel used and the method of its combustion, boiler plants with:

chamber furnaces for burning gaseous and liquid fuels;

chamber furnaces for burning solid fuel in a dust state;

layered furnaces for burning solid fuel in the layer;

Page 49 of 49

CHANGE N 1 SNiP II-35-76 "Boilers"

SNiP supplement section 1a of the following content:

"1a. TERMS AND DEFINITIONS

Boiler room - a complex of buildings and structures, a building or premises with a boiler (heat generator) and auxiliary technological equipment designed to generate heat for heat supply.

Central boiler room - boiler room, designed for several buildings and structures associated with the boiler room with external heating networks.

Autonomous (individual) boiler room - boiler room, designed for heat supply of one building or structure.

Roof boiler - a boiler room located (placed) on the floor of the building directly or on a specially arranged base above the floor. "

Items 1.3, 1.5-1.8, 1.18-1.23 to read as follows.

"1.3. Designing of new and reconstructed boiler houses should be carried out in accordance with the approved heat supply schemes developed taking into account the construction of autonomous (individual) boiler houses.

In the absence of an approved heat supply scheme, the design of boiler rooms is allowed on the basis of relevant feasibility studies (TEO), agreed in the prescribed manner.

The type of fuel for boiler rooms is determined by agreement with fuel-containing organizations in the prescribed manner. However, the use of solid or liquid fuels for rooftop boilers is not permitted. "

1.5. Boilers for placement on the master plan are divided into:

freestanding;

attached to buildings for other purposes;

built into buildings for other purposes, regardless of the floor of the placement;

1.6. For industrial buildings of industrial enterprises designing of attached, built-in and roof boiler rooms is allowed. For boiler houses attached to buildings of the specified purpose, the total heat output of the installed boilers, the unit productivity of each boiler and the heat carrier parameters are not standardized. In this case, the boiler rooms should be located near the walls, where the horizontal distance from the boiler room wall to the nearest opening should be at least 2 m, and the vertical distance from the boiler room ceiling to the nearest opening should be at least 8 m.

For boiler houses built into industrial buildings of industrial enterprises, when using boilers with steam pressure up to 0.07 MPa (1.7 kgf / cm 2) and water temperature up to 115 ° C, the thermal power of the boilers is not standardized.

The thermal capacity of boilers with a steam pressure of more than 0.07 MPa (1.7 kgf / cm 2) and a water temperature of more than 115 ° C should not exceed the values \u200b\u200bestablished by the Rules for the Construction and Safe Operation of steam and hot water boilers approved by the State Technical Supervision of Russia.

Roof boiler rooms for industrial buildings of industrial enterprises, when applied, it is allowed to design using boilers with steam pressure up to 0.07 MPa (1.7 kgf / cm 2) and water temperature up to 115 ° C. Moreover, the heating capacity of such a boiler room should not exceed the need in the heat of knowledge, for the heat supply of which it is intended, but not more than 5 MW.

It is not allowed to place roof and built-in boiler rooms above production facilities and warehouses of categories A and B for explosive and fire hazard.

1.7. The placement of boiler houses built in multi-apartment residential buildings is not allowed.

For residential buildings, the installation of attached and roof boiler rooms is allowed. These boiler rooms may be designed using hot water boilers with a water temperature of up to 115 ° C.

The heating capacity of the boiler room should not exceed the heat demand of the knowledge for which it was intended for heat supply, and the heating capacity of the roof boiler room should not exceed 3.0 MW.

It is not allowed to design attached boilers directly adjacent to residential buildings from the side of entrance entrances, and wall sections with window openings, where the distance from the external wall of the boiler room to the nearest window of the living room is less than 4 m horizontally, and the distance from the boiler room to the nearest window of the living room less than 8 m vertically.

It is not allowed to place roof boiler rooms directly on the ceilings of residential premises (the overlapping of a residential premises cannot serve as the basis for the floor of a boiler room), as well as adjacent to residential premises.

1.8. For public, administrative and domestic buildings, the design of built-in, attached and roof boiler rooms is allowed with the use of:

boilers with a temperature of heating water to 115 ° C.

steam boilers with saturated steam pressure up to 0.07 MPa, satisfying the condition

(T -100) · V £ 100 for each boiler.

t is the temperature of saturated steam at the design pressure, ° C;

V is the water volume of the boiler, m 3;

Moreover, in boilers located in the basement, it is not allowed to provide boilers designed to operate on gaseous and liquid fuels with a flash point of vapors below 45 ° C.

The total heat output of an individual boiler house must not exceed the heat demand of the building or structure for which it is intended for heat supply, in addition, the heat output must not exceed:

3.0 MW - for a rooftop boiler room and for a built-in boiler room with liquid and gaseous fuel boilers;

1.5 MW - for an integrated boiler room with solid fuel boilers.

The total heat output of the attached boiler houses is not limited.

It is not allowed to place attached boiler houses on the side of the main facade of buildings. The distance from the wall of the boiler building to the nearest window should be at least 4 m horizontally, and from the boiler room to the nearest window at least 8 m vertically. Such boiler rooms are also not allowed to be placed adjacent to, under and above the premises with the simultaneous stay of more than 50 people in them.

The design of roof, built-in and attached boiler rooms to the buildings of preschool and school facilities, to the medical and sleeping buildings of hospitals, clinics, sanatoriums and recreation facilities is not allowed.

1.18. Boiler house projects should include:

boilers, economizers, air heaters, ash collectors and other equipment in a block transportable design of high factory readiness;

enlarged mounting blocks of pipelines and gas and air ducts;

enlargement of groups of technologically interconnected auxiliary equipment by assembling it into transportable mounting blocks with pipelines and fittings.

For built-in, attached and roof boiler rooms, automated boilers of full factory readiness should be provided.

1.19. Outside buildings of boiler houses, in open areas, it is allowed to place draft machines, ash collectors, deaerators, decarbonizers, clarifiers, tanks for various purposes, fuel oil heaters; this should include measures to ensure reliable and safe operation, frost protection of pipelines and fittings, as well as measures to protect the environment from pollution and noise protection.

The possibility of installing a roof boiler room on buildings of any purpose above the 26.5 m mark should be coordinated with the territorial bodies of the State Fire Service of the Ministry of Internal Affairs of Russia.

1.20. The technological scheme and layout of the boiler equipment should provide:

optimal mechanization and automation of technological processes, safe and convenient maintenance of equipment;

installation of equipment in turns;

the smallest length of communication;

optimal conditions for the mechanization of repair work;

the possibility of entry into the boiler room of floor transport (forklift trucks, electric cars) for transportation of equipment nodes and pipelines during repair work.

Automation of technological processes of individual boiler rooms should ensure safe operation without a permanent staff.

For repair of equipment components. fittings and pipelines weighing more than 50 kg should provide, as a rule, inventory lifting devices (electric cars, truck cranes).

If it is impossible to service equipment using inventory devices for these purposes, it is allowed to provide stationary hoisting mechanisms (hoists, hoists, overhead and overhead cranes). Stationary lifting devices, necessary when performing only installation work, are not provided for by the project.

To ensure the repair of equipment installed in open areas, as a rule, ground-mounted rail cranes should be provided.

1.21. In boiler rooms, it is necessary to provide repair sites or premises for routine repairs of equipment, fittings, control and regulation devices. In this case, it is necessary to take into account the possibility of carrying out maintenance work on the specified equipment by industrial enterprises or regional specialized organizations.

In autonomous boiler rooms, repair areas are not provided. Repair of equipment, fittings, control and regulation devices in such boiler rooms should be carried out only by specialized organizations that have the appropriate licenses, using their databases and inventory devices.

1.22. The location of boilers and auxiliary equipment and boiler rooms (the distance between boilers and building structures, the width of the aisles), as well as the arrangement of platforms and stairs for servicing equipment, depending on the parameters of the coolant, should be provided for in accordance with the rules for the construction and safe operation of steam and hot water boilers approved by the State Technical Supervision Russia, the rules for the design and safe operation of steam boilers with a steam pressure of not more than 0.07 MPa (1.7 kgf / cm 2), boilers and water heaters with a water heating temperature not higher than 338 K (115 ° C), approved by the Ministry of Construction of Russia, as well as in accordance with passports and operating instructions for boilers.

For autonomous automated boiler houses operating without a permanent attendant, the dimensions of the aisles are taken in accordance with passports and operating instructions to ensure free access for maintenance, installation and dismantling of equipment.

1.23. Categories of explosive, explosive and fire hazard industries and the degree of fire resistance of buildings (premises) in boiler facilities should be taken in accordance with adj. 1 to these norms and rules, as well as in accordance with the Fire Safety Standards of NPB 105 - 95. "

Paragraph 2.4.

"2.4. The main building, fuel facilities and ash and slag removal facilities, a transformer substation, a gas control station, a condensate collection and pumping station, hot water storage tanks, a water treatment building and a reagent farm should be located at the boiler house site.

The indicated buildings and structures may be combined, observing the requirements of Section 11 of these norms and rules. The capacity of liquid fuel warehouses should not exceed the values \u200b\u200bestablished by building codes and rules for the design of oil and oil products warehouses for warehouses of the second group.

For built-in and attached individual boiler rooms, closed warehouses for storing solid and liquid fuel located outside the boiler room and the building for which it is intended for heat supply should be provided, in accordance with SNiP 2.07.01-89.

The capacity of liquid fuel warehouses should not exceed the values \u200b\u200bestablished by building codes and rules for the design of oil and oil products warehouses for warehouses of the second group.

The fencing of boiler rooms should be designed in accordance with the Guidelines for the design of fencing sites and sites of enterprises, buildings and structures.

Buildings and fencing of boiler rooms located on the sites of industrial enterprises, fencing is not allowed.

Items 3.1, 3.9, 3.10, 3.15, 3.16, 3.29 to read as follows:

"3.1. When designing buildings and structures of boiler houses should be guided by building codes and rules for the design of industrial buildings,

administrative and domestic buildings, structures of industrial enterprises and the instructions of this section.

When designing built-in, attached and roof boiler rooms, one should additionally be guided by the requirements of building codes and the rules of those buildings and structures for the heat supply of which they are intended.

3.9. The built-in boiler rooms must be separated from adjacent rooms by type 2 fire walls or type 1 fire walls and type 3 fire ceilings. The attached boiler rooms should be separated from the main building by a type 2 fire wall. At the same time, the wall of the building to which the boiler room is attached must have a fire resistance limit of at least 0.75 hours, and the boiler room must be covered with non-combustible materials.

The supporting and enclosing structures of the roof boiler rooms must have a fire resistance limit of 0.75 hours, the flame propagation limit of the structure is zero, and the roofing of the main building under the boiler room and at a distance of 2 m from its walls should be made of non-combustible materials or protected from fire by a concrete screed at least 20 mm thick.

Resistance to air permeation and vapor permeation of walls and ceilings separating built-in and attached boiler rooms from other rooms, as well as building coverings when placing boiler rooms on roofs, must meet the requirements of Construction Norms and Regulations II-3-79 "Construction Heat Engineering".

The inner surfaces of the walls of the built-in and roof boiler rooms should be painted with moisture-resistant paints.

3.10. Exits from the built-in and attached boiler rooms should be provided directly outside.

Marches of stairs for it is allowed to install built-in boiler rooms in the dimensions of the common stairwells, separating these marches from the rest of the stairwell with fireproof partitions and ceilings with a fire resistance of at least 0.75 hours .

For roof boilers should provide:

exit from the boiler room directly to the roof;

access to the roof from the main building by the flight of stairs;

with a roof slope of more than 10%, navigation bridges should be provided with a width of 1 m, with a railing from the exit to the roof to the boiler room and around the perimeter of the boiler room.

The construction of bridges and railings should be provided from non-combustible materials.

3.15. Permissible sound pressure levels and sound levels at permanent workplaces and at control panels for control should be taken in accordance with the Sanitary norms for designing industrial enterprises.

Autonomous boiler rooms must provide a sound pressure level in accordance with the requirements of SNiP II-12-77 of those buildings and structures for the heat supply of which they are intended.

3.16. The external enclosing structures of the ground part of the fuel supply for fuel with the volatile substances reaching the combustible mass of 20% or more (unloading devices, crushing compartments, conveyor galleries, transfer stations, over-bunker galleries should be designed on the basis that the area of \u200b\u200beasy-to-discharge structures should be at least 0, 03 m 2 per 1 m 2 of the room volume Window frames in buildings and fuel supply rooms should be provided as single and should be located, as a rule, in the same plane with the inner surface of the walls.

In individual boiler rooms operating on liquid and gaseous fuels, easily removable building envelopes should be provided at the rate of 0.03 m 2 per 1 m 2 of the volume of the room in which the boilers are located.

3.29. Technological equipment with static and dynamic loads that do not cause stresses in the underlying concrete layer of the floor that exceed the voltage from the effects of installation and transport loads should be installed without foundations.

For built-in and roof boiler rooms, technological equipment should be provided, the static and dynamic loads of which allow it to be installed without foundations. At the same time, the static and dynamic loads from the equipment of the roof boiler room on the floor of the building should not exceed the bearing capacity of the used building structures of the building.

Section 4 state in the new edition:

" 4 "FUEL"

4.1. Types of primary, backup and emergency fuel, as well as the need for backup or emergency fuel for boiler rooms, are established taking into account the category of the boiler room, based on local operating conditions, as agreed with the fuel supply organizations.

4.2. The type of fuel for kindling and "highlighting" boilers with chamber furnaces for burning solid fuel should be provided based on the requirements of the manufacturer. "

Remaining items are excluded.

Paragraph 6.4. to read as follows:

"6.4. As “tail” heating surfaces, air heaters, surface and contact economizers, as well as heat utilizers using the latent heat of vaporization of flue gases should be used.

Surface economizers and air heaters and heat exchangers of the latent heat of vaporization are accepted in the factory complete set of boilers.

Contact water economizers can be used to heat water in domestic and process hot water systems, baths and laundries. The use of heat obtained in contact economizers for domestic hot water supply is allowed in the presence of intermediate heat exchangers.

Water for baths and laundries can be heated in contact economizers. the use of which is permitted by the USSR Ministry of Health.

Contact economizers can be installed directly behind boilers or after surface economizers. "

Items 7.6, 7.14, 7.15, 7.18 to read as follows:

"7.6. The design of the gas-air path of boiler rooms is carried out in accordance with the standard method of aerodynamic calculation of boiler plants TsKTI named after I.I. Polzunova.

For built-in, attached and roof boiler rooms, walls should include openings for supplying combustion air, usually located in the upper zone of the room.

The dimensions of the live section of the openings are determined based on ensuring the air speed in them is not more than 1 m / s.

7.14. The height of the chimneys with artificial draft is determined in accordance with the Guidelines for the calculation of dispersion in the atmosphere of harmful substances contained in emissions of enterprises and the Sanitary standards for designing industrial enterprises.

The height of the chimneys during natural draft is determined on the basis of the results of aerodynamic calculation of the gas-air tract and is checked according to the conditions of dispersion of harmful substances in the atmosphere.

When calculating the dispersion of harmful substances in the atmosphere, the maximum allowable concentrations of ash, sulfur oxides, nitrogen dioxide and carbon monoxide should be taken. At the same time, the amount of emitted harmful emissions is taken, as a rule, according to the data of boiler manufacturers, in the absence of these data - are determined by calculation.

The height of the mouth of the chimneys for built-in, attached and roof boiler rooms should be above the boundary of the wind support, but not less than 0.5 m above the roof, and also at least 2 m above the roof of the higher part of the building or the tallest building within a radius of 10 m.

7.15. The diameters of the outlet openings of steel chimneys are determined from the conditions of optimal gas velocities based on technical and economic calculations.

The diameters of the outlet openings of brick and reinforced concrete pipes are determined on the basis of the requirements of paragraph 7.16 of these rules and regulations.

7.18. For boiler houses operating on gaseous fuels, the use of steel chimneys is allowed at the economic inexpediency of raising the temperature of flue gases.

For autonomous boiler rooms, chimneys must be gas-tight, made of metal or non-combustible materials.

Pipes should normally have external thermal insulation to prevent condensation and hatches for inspection and cleaning.

Paragraph 8.17 to read as follows:

"8.17. In autonomous boiler rooms, if it is necessary to maintain a constant water temperature at the inlet to the boiler, a recirculation pipeline should be provided.

Paragraphs 9.18, 9.24to read as follows:

"9.18. The performance of water heating plants is determined by the maximum hourly heat consumption for heating and ventilation and the estimated heat consumption for hot water supply, determined in accordance with construction standards in the rules for designing hot water supply.

The performance of heaters for hot water in individual boiler rooms is determined by the maximum flow rate.

9.24. Condensation from steam-water boiler heaters should be sent directly to deaerators.

In boiler rooms, closed tanks with a steam cushion should be provided for collecting drainage of steam pipelines, condensate of steam-water heaters and heaters of the boiler heating and ventilation system.

When condensate collection tanks are located in or near the boiler room, all drainage should be directed to these tanks. At the same time, special drainage collecting tanks are not provided in the boiler room.

Depending on the quality of the condensate. returnable from external consumers, it should be possible to directly supply it to deaerators of joint treatment with source water or treatment in a special installation.

Condensate from the heat exchangers of the latent heat of flue gas vaporization can be used in the boiler feed system after special treatment or discharged into the sewer after the neutralizing installation. "

Items 10.1, 10.7, 10.27 to read as follows:

"10.1. The water treatment project should include solutions for water treatment for supplying steam boilers, heat supply systems and hot water supply, as well as for monitoring the quality of water and steam.

For autonomous boiler rooms, it is allowed not to provide for the installation of water treatment if the initial and emergency filling of the circulation circuits of the boilers and the heating system with chemically treated water or pure condensate is provided.

At the same time, a filling device must be provided in the boiler room

10.7. Water quality standards for filling and replenishing heating networks, heating systems and circulation circuits of boilers must meet the requirements of norms and rules for the design of heating networks, as well as the requirements of manufacturers' instructions for

operation of boilers. "

10.27. The design capacity of the water treatment plant is determined by:

for supplying steam boilers with the sum of the maximum losses of steam and condensate by technological consumers, losses of water with continuous blowing and losses of steam and condensate in the boiler room;

for replenishment of heating networks - in accordance with building codes and rules for the design of heating networks.

for autonomous boiler rooms - based on the initial or emergency filling of all circulation volumes within no more than 8 hours.

Items 11.39, 11.42, 11.49, 11.52, 11.53, 11.59, 11.60 to read as follows:

"11.39. For storage of the main and reserve fuel, at least two tanks should be provided. For storage of emergency fuel, one tank is allowed.

The total capacity of the tanks for storing liquid additives is determined by the conditions of their delivery (the capacity of railway or automobile tanks), but should be at least 0.5% of the fuel oil storage capacity. The number of tanks is accepted at least two.

For built-in and attached individual oil-fired boiler houses, a fuel warehouse located outside the boiler room and heated buildings with a capacity calculated from storage conditions of at least 5 daily fuel consumption, determined for the regime corresponding to the boiler thermal load in the coldest month mode, should be provided, number tanks are not limited to this. "

11.42. To heat the fuel in railway tanks should use steam pressure of 6-10 kgf / cm 2. To heat fuel oil in heaters, fuel storage tanks, receiving tanks and drain trays, steam with a pressure of 6-10 kgf / cm 2 or high-temperature water with a temperature of at least 120 0 C can be used.

For liquid fuel of built-in and attached boiler rooms, if necessary, it is heated in external tanks, the coolant of the same boiler rooms is used.

11.49. In boiler rooms (but not above boilers or economizers) of separate boiler rooms, it is allowed to install closed liquid fuel supply tanks with a capacity of not more than 5 m 3 for heavy fuel oil and 1 m 3 for light petroleum fuel.

For built-in and attached individual boiler rooms, the total capacity of the supply tanks installed in the boiler room should not exceed 0.8 m 3.

When installing these tanks in boiler rooms, one should be guided by building codes and rules for designing oil and oil products warehouses.

11.52. In boiler rooms intended. for operation only on liquid fuel, the fuel supply from the fuel pumps to the boilers should be provided on two lines for boiler rooms of the first category and one line for boiler rooms of the second category.

In cases where liquid fuel is used as a backup, emergency or starting fuel, it is supplied to the boilers through single pipelines, regardless of the category of the boiler room.

The supply of coolant to the plants for the fuel supply of boiler rooms is provided for in one or two pipelines in accordance with the number of fuel supply lines to the boilers.

When supplying fuel and coolant along two lines, each of the lines is designed to pass 75% of the fuel and coolant consumed at the maximum load of working boilers.

For boiler houses operating on light petroleum fuels, fuel pipelines should provide for:

a disconnecting device with an insulating flange and a quick-acting shut-off valve with an electric actuator at the fuel inlet to the boiler room;

shutoff valves at the outlet to each boiler or burner;

shutoff valves on branch to the drain highway.

11.53. The laying of fuel lines should be provided aboveground. Underground installation in impassable channels with removable ceilings with minimal channel deepening without backfilling is allowed.

In the places where the channels adjoin outer wall In buildings, the canals should be covered with sand or have fireproof diaphragms.

Fuel lines must be laid with a slope of at least 0.003. It is forbidden to lay fuel pipes directly through the gas waste, air ducts and ventilation shafts. "

11.59. For built-in, attached and roof boiler rooms, the supply of natural gas with a pressure of up to 5 kPa should be provided. At the same time, open sections of the gas pipeline should be laid along the outer wall of the building along the piers with a width of at least 1.5 m.

11.60. The following should be installed on the gas supply line to the boiler room:

a disconnecting device with an insulating flange on the outer wall of the building at a height of not more than 1.8 m;

fast-acting shut-off valve with electric drive inside the boiler room;

shut-off valves at the outlet to each boiler or gas burner device. "

Items 14.3, 14.6, 14.23 to read as follows:

14.3. The selection of electric motors, starting equipment, control devices, lighting fixtures and wiring should be made depending on the characteristics of buildings (premises) and structures under environmental conditions, determined by adj. 9 to these rules and regulations, taking into account the following additional requirements:

electric motors for exhaust fans installed in the premises of built-in attached and roof boiler rooms with boilers designed to work on gaseous fuel and liquid fuel with a flash point of vapors of 45 ° C and below should be in the design provided by the PUE for premises of class B-1a.

Starting equipment for these fans, as a rule, should be installed outside the boiler room and be performed in accordance with the environmental characteristics. If it is necessary to install start-up equipment in the boiler room, this equipment is adopted in the design provided by the PUE for premises of class B-1a;

when the water treatment equipment, pumping stations and gas control units are located in a common room with boiler units, the selection of electrical equipment is made according to the characteristic among the boiler room;

for fuel supply rooms equipped with a hydraulic cleaning system, the choice of electrical equipment, wiring and fixtures is made taking into account the possibility of washing them with water.

14.6. To ensure safe operation and safety of equipment when shutting down boiler units, it is necessary to provide for the blocking of electric motors of smoke exhausters, blow fans, and fuel supply mechanisms.

Blocking of electric motors of mechanisms of boilers with layered manual furnaces is not provided.

In fuel supply, dust preparation and ash and slag removal systems, blocking mechanisms should be provided to enable and disable electric motors in a certain sequence, excluding blocking of individual mechanisms with fuel, ash or slag.

The fuel supply and dust preparation mechanisms must be interlocked with the fans of the suction units.

In boiler rooms without constant maintenance of personnel working on liquid and gaseous fuels, automatic closure of the quick-acting shut-off valve at the fuel inlet to the boiler room should be provided:

during a power outage;

with a gas signal of a gas boiler.

Such boiler rooms must be protected against unauthorized access inside.

14.23. In boiler rooms it is necessary to provide for metering of electricity consumption. "

Items 15.6, 15.15, 15.17, 15.27 to read as follows:

"15.6. For boilers when burning gaseous or liquid fuels, devices should be provided that automatically cut off the fuel supply to the burners when:

a) increasing or decreasing the pressure of the gaseous fuel in front of the burners;

b) lowering the pressure of liquid fuel in front of the burners, except for boilers equipped with rotary burners;

c) lowering the air pressure in front of the burners for boilers equipped with burners with forced air supply;

d) reducing the vacuum in the furnace;

e) the extinction of torches of burners, the shutdown of which during the operation of the boiler is not allowed:

e) increasing the temperature of the water leaving the boiler;

g) increasing or decreasing the water pressure at the outlet of the boiler;

h) malfunctions of the protection circuits, including the disappearance of voltage, only for boiler rooms of the second category.

Note. For boilers with a water temperature of 1150 ° C and below, when the water pressure behind the boiler decreases and the water flow through the boiler decreases, automatic shutdown of fuel to the burners is not provided.

15.15. In boiler rooms operating without permanent maintenance personnel, signals (light and sound) should be taken to the control room:

equipment malfunctions, while the cause of the call is recorded in the boiler room;

response signal of the main high-speed shut-off valve of the fuel supply of the boiler room;

for boiler houses operating on gaseous fuels, when the gas content of the premises is reached, 10% of the lower flammability limit of natural gas.

15.17. Automatic control of combustion processes should be provided for boilers with chamber furnaces for burning solid, gaseous, and liquid fuels, as well as for boilers with mechanized layered furnaces that allow their operation to be automated.

Automatic regulation of boiler houses operating without permanent attendants should provide for the automatic operation of the main and auxiliary equipment of the boiler room, depending on the specified operating parameters and taking into account the automation of heat-consuming installations. Boilers should be started in case of emergency shutdown after manual troubleshooting.

Note. Automation of the ropening process for the operation of emergency fuel boilers is not provided.

15.27. The boiler room should provide for automatic maintenance of the set temperature of the water entering the heat supply and hot water supply systems, as well as the set temperature of the return water entering the boilers, if this is provided for by the manufacturer's instructions.

"For boiler rooms with boilers equipped with boilers not intended for automatic control of the combustion process, automatic control of the water temperature may not be provided."

Paragraph 16.9 to read as follows:

16.9. For boiler rooms operating on gaseous fuels, if there is a permanent attendant, at least three times air exchange should be provided for 1 hour, excluding air sucked into the combustion chambers of combustion boilers.

The design of exhaust fans installed in these boiler rooms should exclude the possibility of sparking.

Items 17.5, 17.22 to read as follows:

"17.5. The installation of fire hydrants should be provided in rooms with production facilities of categories A, B and C, as well as in rooms where pipelines for liquid and gaseous fuels are laid.

A building with a height of more than 12 m, not equipped with an internal fire water supply for fire extinguishing, having a roof boiler room, must be equipped with a dry pipe with a roof outlet with fire hose heads with a diameter of 70 mm.

17.22. In built-in and roof boiler rooms, the floor must have a waterproofing, calculated on the height of the bay with water up to 10 cm.

Entrance doors must have thresholds to prevent water from entering the boiler room in the event of a pipeline accident and a device to remove it into the sewer. "

Items 18.25 to read as follows:

"18.25. The design seismicity of buildings and structures of boiler houses is taken in accordance with the design seismicity of buildings and structures for the heating of which boiler houses are designed.

Load bearing capacity structures of the main building and structures with built-in and roof boiler rooms, must be calculated taking into account additional loads from the main and auxiliary equipment of the boiler room in accordance with SNiP II-7-81.

The fastening of the main and auxiliary equipment to the supporting and enclosing structures of the premises of such boiler rooms should also be carried out in accordance with the specified SNiP. "

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