1 General provisions
1.0.1 This standard is formulated with a view to enabling the design of boiler plant to meet the requirements of energy conservation, environmental protection, safe production, advanced technology, economic rationality and quality assurance.
1.0.2 This standard is applicable to the design of industrial, civil and regional boiler plants and their outdoor thermal piping within the following scope:
1 the boiler plant of steam boilers, for single boiler therein, the rated evaporating capacity is 1~75t/h, the rated outlet steam pressure is 0.10~3.82MPa (gauge pressure), and the rated outlet steam temperature is less than or equal to 450℃;
2 the boiler plant of hot water boilers, for single boiler therein, the rated thermal power is 0.7~174MW, the rated outlet water pressure is 0.10~2.50MPa (gauge pressure), and the rated outlet water temperature is less than or equal to 180℃;
3 the outdoor steam piping, condensate piping and closed hot water circulation system which meet the parameters in Items 1 and 2 of this article.
1.0.3 This standard is not applicable to the design of boiler plants and urban heating pipe networks for waste heat boilers, waste incineration boilers and other special types of boilers.
1.0.4 In addition to this standard, the design of boiler plant shall also comply with those stipulated in the current relevant national standards.
2 Terms
2.0.1 boiler plant
complex of boiler as well as auxiliary equipment and facilities ensuring the normal operation of boiler
2.0.2 industrial boiler plant
boiler plant provided and owned by the enterprise, which aims at meeting the heat (steam and hot water) requirements of the enterprise
2.0.3 living boiler plant
boiler plant for supplying people with heat (steam) for living
2.0.4 regional boiler plant
boiler plant serving certain region, within which, several building facilities such as enterprises, civil buildings and public buildings are arranged
2.0.5 independent boiler plant
boiler plant with no structural connection with other buildings around it
2.0.6 dependent boiler plant
boiler plant adjacent to or arranged in other buildings
2.0.7 underground boiler plant
boiler plant located underground
2.0.8 semi-underground boiler plant
boiler plant with the underground height below the ground exceeding 1/3 the net height of the boiler room but not exceeding the height of the boiler room
2.0.9 basement boiler plant
boiler plant arranged in other buildings, with the height of boiler room floor below the outdoor floor by more than 1/2 the net height of the boiler room
2.0.10 semi-basement boiler plant
boiler plant arranged in other buildings, with the height of boiler room floor below the outdoor floor by more than 1/3 but not more than 1/2 the net height of the boiler room
2.0.11 outdoor thermal piping
outdoor thermal piping of boiler plant owned by enterprise within its scope, and that within the boundary of regional boiler plant
2.0.12 piping
piping that consists of pipe components, pipe supports and hangers, etc., which is used to transport, distribute, mix, separate, discharge, measure or control fluid flow
2.0.13 piping system
a group of pipings formed by connecting a plurality of pipings divided according to fluid and design conditions
2.0.14 year-round steam (heat) supply
year-round steam (heat) supply by boiler plant to heat consumers, which cannot be cut off, otherwise it will lead to life danger or great economic loss of relevant personnel
2.0.15 boiler room
place where the boiler body is installed
2.0.16 auxiliary room
all places other than boiler room, where auxiliary machines and auxiliary equipment are installed and production operations are conducted, such as water treatment room, fan room, water pump room, machine repair room, laboratory, instrument control room, etc.
2.0.17 service room
place for employees to live or work, such as duty room, rest room, office, private bathroom, toilet, etc.
2.0.18 duty room
place for workers to change and store clothes at the commuter time
2.0.19 rest room
place for workers to rest at the work shift for boiler plant under two- or three-shift system
2.0.20 operation feed water pump
feed water pump normally used for boiler during operation
2.0.21 standby feed water pump
pump that feeds water to a boiler when the operation feed water pump fails
2.0.22 emergency feed water pump
feed water pump (usually steam driven) used to prevent the boiler from water shortage accident when the electric feed water pump stops in case of power failure
2.0.23 net distance
distance between the outer edges of the most prominent adjacent parts of two objects
2.0.24 relative density
ratio of gas density to air density
2.0.25 close area of coal
closed warehouse for storing coal and preventing coal dust from escaping, which shall be provided with devices or facilities for timely discharging combustible gas outdoors
3 Basic requirements
3.0.1 The design of boiler plant shall be carried out according to the approved urban (regional) or enterprise overall planning and heating planning, so as to combine long-term and short-term considerations, for which, priority is given to the near future and room for expansion should be reserved; for the design of expanded and reconstructed boiler plant, the original data of original process equipment and piping shall be obtained, and the original buildings, structures, equipment and piping shall be rationally utilized, meanwhile, they shall be coordinated with the layout of original production system, equipment and piping as well as the types of buildings and structures.
3.0.2 For the design of boiler plant, data of heat load, fuel and water quality shall be obtained, and relevant basic data of local meteorology, geology, hydrology, electricity and water supply shall also be obtained.
3.0.3 The selection of fuel for boiler plant shall make rational use of energy and save energy, and be coordinated with safe production, economic benefits and environmental protection. The selected fuel shall be provided with data such as its origin and elemental composition analysis as well as corresponding fuel supply agreement, and shall meet the following requirements:
1 the fuel used for boiler plants arranged in other buildings shall be fuel gas or fuel oil, but should not be heavy oil or residual oil;
2 the backup fuel of gas boiler plant shall be determined according to the safety and significance of heating system, the assurance degree of fuel gas supply and the possibility of backup fuel.
3.0.4 For underground, semi-underground, basement and semi-basement boiler plants, liquefied petroleum gas or gas fuel with relative density greater than or equal to 0.75 is strictly prohibited.
3.0.5 For the design of boiler plant, effective measures shall be taken to reduce the impact of waste gas, waste water, solid waste residue and noise on the environment, and the discharged harmful substances and noise shall meet the requirements of national emission standards.
3.0.6 The heat load required by the region shall be determined according to the heating planning of the city (region) where it is located. When one of the following conditions is met, a regional boiler plant shall be arranged:
1 when the heating and domestic heat load of residential areas and public building facilities are outside the supply scope of thermal power station;
2 when the consumers have small production, heating, ventilation and domestic heat load, the load is unstable and the number of annual service hours is small, or cogeneration conditions are unavailable due to reasons such as site and capital;
3 when transitional heating, which may be used as peak shaving or standby heat source for thermal power stations in the future, is required according to the urban heating planning and consumers' requirements for early heat utilization.
3.0.7 The capacity of boiler plant shall be determined according to the design heat load. The design heat load should be calculated and determined after drawing the heat load curve or heat balance system diagram, and taking into account various heat losses, self-consumed heat of boiler plant and available waste heat.
3.0.8 When the boiler plant is equipped with a steam accumulator, its design capacity shall be calculated and determined according to the heat load after balance.
3.0.9 The selection of boiler heating medium shall meet the following requirements:
1 hot water should be taken as the heating medium of boiler in the boiler plant for heating, ventilation, air conditioning and domestic heat;
2 steam shall be taken as the heating medium of boiler in the boiler plant mainly for producing steam;
3 after technical and economic comparison, steam, hot water or steam and hot water may be selected as the heating medium of boiler in the boiler plant for production, heating, ventilation, air conditioning and domestic heat simultaneously.
Foreword i
1 General provisions
2 Terms
3 Basic requirements
4 Boiler plant layout
4.1 Location selection
4.2 Arrangement of buildings, structures and sites
4.3 Arrangement of boiler room, auxiliary room and service room
4.4 Process layout
5 Coal system
5.1 Coal facilities
5.2 Storage and transportation of coal, ash and limestone
6 Fuel oil system
6.1 Fuel oil facilities
6.2 Storage and transportation of fuel oil
7 Fuel gas system
8 Boiler air and flue gas system
9 Boiler feed water equipment and water treatment
9.1 Boiler feed water equipment
9.2 Water treatment
10 Hot water preparation for heating
10.1 Hot water boiler and auxiliary facilities
10.2 Hot water preparation facilities
11 Monitoring and control
11.1 Monitoring
11.2 Control
12 Chemical analysis and overhaul
12.1 Chemical analysis
12.2 Overhaul
13 Boiler plant piping
13.1 Steam and water piping
13.2 Fuel oil piping
13.3 Fuel gas piping
14 Thermal insulation and anti-corrosion
14.1 Thermal insulation
14.2 Anti-corrosion
15 Civil engineering, electrical, heating and ventilation, water supply and drainage
15.1 Civil engineering
15.2 Electrical
15.3 Heating and ventilation
15.4 Water supply and drainage
16 Environmental protection
16.1 Prevention and control of atmospheric pollution
16.2 Prevention and control of noise and vibration
16.3 Wastewater treatment
16.4 Solid waste treatment
16.5 Greening
17 Fire-fighting
18 Outdoor thermal piping
18.1 General requirements
18.2 Piping system
18.3 Piping arrangement and laying
Annex A Net distance between outdoor thermal piping or trenches and buildings, structures, roads, railways or other piping
Explanation of wording in this standard
List of quoted standards
1 General provisions
1.0.1 This standard is formulated with a view to enabling the design of boiler plant to meet the requirements of energy conservation, environmental protection, safe production, advanced technology, economic rationality and quality assurance.
1.0.2 This standard is applicable to the design of industrial, civil and regional boiler plants and their outdoor thermal piping within the following scope:
1 the boiler plant of steam boilers, for single boiler therein, the rated evaporating capacity is 1~75t/h, the rated outlet steam pressure is 0.10~3.82MPa (gauge pressure), and the rated outlet steam temperature is less than or equal to 450℃;
2 the boiler plant of hot water boilers, for single boiler therein, the rated thermal power is 0.7~174MW, the rated outlet water pressure is 0.10~2.50MPa (gauge pressure), and the rated outlet water temperature is less than or equal to 180℃;
3 the outdoor steam piping, condensate piping and closed hot water circulation system which meet the parameters in Items 1 and 2 of this article.
1.0.3 This standard is not applicable to the design of boiler plants and urban heating pipe networks for waste heat boilers, waste incineration boilers and other special types of boilers.
1.0.4 In addition to this standard, the design of boiler plant shall also comply with those stipulated in the current relevant national standards.
2 Terms
2.0.1 boiler plant
complex of boiler as well as auxiliary equipment and facilities ensuring the normal operation of boiler
2.0.2 industrial boiler plant
boiler plant provided and owned by the enterprise, which aims at meeting the heat (steam and hot water) requirements of the enterprise
2.0.3 living boiler plant
boiler plant for supplying people with heat (steam) for living
2.0.4 regional boiler plant
boiler plant serving certain region, within which, several building facilities such as enterprises, civil buildings and public buildings are arranged
2.0.5 independent boiler plant
boiler plant with no structural connection with other buildings around it
2.0.6 dependent boiler plant
boiler plant adjacent to or arranged in other buildings
2.0.7 underground boiler plant
boiler plant located underground
2.0.8 semi-underground boiler plant
boiler plant with the underground height below the ground exceeding 1/3 the net height of the boiler room but not exceeding the height of the boiler room
2.0.9 basement boiler plant
boiler plant arranged in other buildings, with the height of boiler room floor below the outdoor floor by more than 1/2 the net height of the boiler room
2.0.10 semi-basement boiler plant
boiler plant arranged in other buildings, with the height of boiler room floor below the outdoor floor by more than 1/3 but not more than 1/2 the net height of the boiler room
2.0.11 outdoor thermal piping
outdoor thermal piping of boiler plant owned by enterprise within its scope, and that within the boundary of regional boiler plant
2.0.12 piping
piping that consists of pipe components, pipe supports and hangers, etc., which is used to transport, distribute, mix, separate, discharge, measure or control fluid flow
2.0.13 piping system
a group of pipings formed by connecting a plurality of pipings divided according to fluid and design conditions
2.0.14 year-round steam (heat) supply
year-round steam (heat) supply by boiler plant to heat consumers, which cannot be cut off, otherwise it will lead to life danger or great economic loss of relevant personnel
2.0.15 boiler room
place where the boiler body is installed
2.0.16 auxiliary room
all places other than boiler room, where auxiliary machines and auxiliary equipment are installed and production operations are conducted, such as water treatment room, fan room, water pump room, machine repair room, laboratory, instrument control room, etc.
2.0.17 service room
place for employees to live or work, such as duty room, rest room, office, private bathroom, toilet, etc.
2.0.18 duty room
place for workers to change and store clothes at the commuter time
2.0.19 rest room
place for workers to rest at the work shift for boiler plant under two- or three-shift system
2.0.20 operation feed water pump
feed water pump normally used for boiler during operation
2.0.21 standby feed water pump
pump that feeds water to a boiler when the operation feed water pump fails
2.0.22 emergency feed water pump
feed water pump (usually steam driven) used to prevent the boiler from water shortage accident when the electric feed water pump stops in case of power failure
2.0.23 net distance
distance between the outer edges of the most prominent adjacent parts of two objects
2.0.24 relative density
ratio of gas density to air density
2.0.25 close area of coal
closed warehouse for storing coal and preventing coal dust from escaping, which shall be provided with devices or facilities for timely discharging combustible gas outdoors
3 Basic requirements
3.0.1 The design of boiler plant shall be carried out according to the approved urban (regional) or enterprise overall planning and heating planning, so as to combine long-term and short-term considerations, for which, priority is given to the near future and room for expansion should be reserved; for the design of expanded and reconstructed boiler plant, the original data of original process equipment and piping shall be obtained, and the original buildings, structures, equipment and piping shall be rationally utilized, meanwhile, they shall be coordinated with the layout of original production system, equipment and piping as well as the types of buildings and structures.
3.0.2 For the design of boiler plant, data of heat load, fuel and water quality shall be obtained, and relevant basic data of local meteorology, geology, hydrology, electricity and water supply shall also be obtained.
3.0.3 The selection of fuel for boiler plant shall make rational use of energy and save energy, and be coordinated with safe production, economic benefits and environmental protection. The selected fuel shall be provided with data such as its origin and elemental composition analysis as well as corresponding fuel supply agreement, and shall meet the following requirements:
1 the fuel used for boiler plants arranged in other buildings shall be fuel gas or fuel oil, but should not be heavy oil or residual oil;
2 the backup fuel of gas boiler plant shall be determined according to the safety and significance of heating system, the assurance degree of fuel gas supply and the possibility of backup fuel.
3.0.4 For underground, semi-underground, basement and semi-basement boiler plants, liquefied petroleum gas or gas fuel with relative density greater than or equal to 0.75 is strictly prohibited.
3.0.5 For the design of boiler plant, effective measures shall be taken to reduce the impact of waste gas, waste water, solid waste residue and noise on the environment, and the discharged harmful substances and noise shall meet the requirements of national emission standards.
3.0.6 The heat load required by the region shall be determined according to the heating planning of the city (region) where it is located. When one of the following conditions is met, a regional boiler plant shall be arranged:
1 when the heating and domestic heat load of residential areas and public building facilities are outside the supply scope of thermal power station;
2 when the consumers have small production, heating, ventilation and domestic heat load, the load is unstable and the number of annual service hours is small, or cogeneration conditions are unavailable due to reasons such as site and capital;
3 when transitional heating, which may be used as peak shaving or standby heat source for thermal power stations in the future, is required according to the urban heating planning and consumers' requirements for early heat utilization.
3.0.7 The capacity of boiler plant shall be determined according to the design heat load. The design heat load should be calculated and determined after drawing the heat load curve or heat balance system diagram, and taking into account various heat losses, self-consumed heat of boiler plant and available waste heat.
3.0.8 When the boiler plant is equipped with a steam accumulator, its design capacity shall be calculated and determined according to the heat load after balance.
3.0.9 The selection of boiler heating medium shall meet the following requirements:
1 hot water should be taken as the heating medium of boiler in the boiler plant for heating, ventilation, air conditioning and domestic heat;
2 steam shall be taken as the heating medium of boiler in the boiler plant mainly for producing steam;
3 after technical and economic comparison, steam, hot water or steam and hot water may be selected as the heating medium of boiler in the boiler plant for production, heating, ventilation, air conditioning and domestic heat simultaneously.
Contents of GB 50041-2020
Foreword i
1 General provisions
2 Terms
3 Basic requirements
4 Boiler plant layout
4.1 Location selection
4.2 Arrangement of buildings, structures and sites
4.3 Arrangement of boiler room, auxiliary room and service room
4.4 Process layout
5 Coal system
5.1 Coal facilities
5.2 Storage and transportation of coal, ash and limestone
6 Fuel oil system
6.1 Fuel oil facilities
6.2 Storage and transportation of fuel oil
7 Fuel gas system
8 Boiler air and flue gas system
9 Boiler feed water equipment and water treatment
9.1 Boiler feed water equipment
9.2 Water treatment
10 Hot water preparation for heating
10.1 Hot water boiler and auxiliary facilities
10.2 Hot water preparation facilities
11 Monitoring and control
11.1 Monitoring
11.2 Control
12 Chemical analysis and overhaul
12.1 Chemical analysis
12.2 Overhaul
13 Boiler plant piping
13.1 Steam and water piping
13.2 Fuel oil piping
13.3 Fuel gas piping
14 Thermal insulation and anti-corrosion
14.1 Thermal insulation
14.2 Anti-corrosion
15 Civil engineering, electrical, heating and ventilation, water supply and drainage
15.1 Civil engineering
15.2 Electrical
15.3 Heating and ventilation
15.4 Water supply and drainage
16 Environmental protection
16.1 Prevention and control of atmospheric pollution
16.2 Prevention and control of noise and vibration
16.3 Wastewater treatment
16.4 Solid waste treatment
16.5 Greening
17 Fire-fighting
18 Outdoor thermal piping
18.1 General requirements
18.2 Piping system
18.3 Piping arrangement and laying
Annex A Net distance between outdoor thermal piping or trenches and buildings, structures, roads, railways or other piping
Explanation of wording in this standard
List of quoted standards
