Water-tube boilers - Part 1: General requirements
1 Scope
1.1 This document specifies the general technical requirements for water-tube boilers, such as the range, boil parameters, construction specifications, energy conservation and environmental protection.
1.2 This document is applicable to the stationary water-tube boilers within the following range:
a) steam boilers with a rated steam pressure of larger than or equal to 0.1MPa;
b) hot water boilers with a rated outlet pressure of larger than or equal to 0.1MPa and rated thermal power of larger than or equal to 0.1MW;
c) gas pass heat recovery boilers with the main purpose of recovery (waste) heat utilization.
1.3 This document is not applicable to the water-tube boilers within the following range:
a) movable water-tube boilers;
b) cooling devices for the cooling requirements of equipment and process flow.
1.4 This document may be used as a reference to stationary water-tube boilers with rated pressure of less than 0.1MPa.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 753 Steam condition series for utility boilers
GB/T 1921 Parameters for industrial steam boilers
GB/T 2900.48 Electrotechnical terminology of boilers
GB 3095 Ambient air quality standard
GB 3096 Environmental quality standard for noise
GB/T 3166 Parameters for hot water boilers
GB/T 10180 Thermal performance test code for industrial boilers
GB/T 10184 Performance test code for utility boiler
GB/T 10863 Thermal test method for gas pass heat recovery boiler
GB/T 10868 Steam converting valves for power station
GB/T 10869 Control valves for power station
GB/T 11943 Boiler drawings
GB/T 12241 Safety valves - General requirements
GB 12348 Emission standard for industrial enterprises noise at boundary
GB 13223 Emission standard of air pollutants for thermal power plants
GB 13271 Emission standard of air pollutants for boilers
GB/T 16507.2 Water-tube boilers - Part 2: Materials
GB/T 16507.3 Water-tube boilers - Part 3: Structure design
GB/T 16507.4 Water-tube boilers - Part 4: Strength calculation of pressure parts
GB/T 16507.5 Water-tube boilers - Part 5: Fabrication
GB/T 16507.6 Water-tube boilers - Part 6: Inspection, testing and acceptance
GB/T 16507.7 Water-tube boilers - Part 7: Safety appurtenances and instruments
GB/T 16507.8 Water-tube boilers - Part 8: Installation and operation
GB 18485 Standard for pollution control on the municipal solid waste incineration
GB/T 22395 Specification for design of boiler steel structures
GB 24500 Minimum allowable values of energy efficiency and energy efficiency grades of industrial boilers
GB/T 28056 General specification for gas pass heat recovery boiler
GB/T 28057 Specification for oxygen converter heat recovery boiler
GB/T 29052 Guide for techniques of water and energy saving in industrial steam boiler system
GB/T 29462 Isolation valve for power station
GB/T 30576 Specification of heat recovery boiler for notary cement kiln
GB/T 30577 Specification of heat recovery steam generator for combined-cycle for gas-steam
GB/T 34348 Specification for utility boiler system
GB/T 36514 Alkali recovery boilers
GB/T 36699 Specification for liquid fuels and gaseous fuels burners of boilers
DL/T 5054 Code for design of steam/water piping of fossil-fired power plant
JB/T 2192 Specification for square cast-iron economizer
JB/T 3271 Specification for travelling grate stokers
JB/T 6734 Calculation method of strength of boiler fillet welding seam
JB/T 6735 Calculation method of strength of boiler hanger rod
JB/T 7985 Specification for small type boilers and atmospheric hot water boilers
JB/T 8501 Boiler soot blowers and thermoprobe
JB/T 9623 Specification for exhaust muffler of fossil power plant
JB/T 10249 Specification of MSW incineration boilers
JB/T 10325 Specification for boiler deaerator
JB/T 10355 Specification of spreader stokers for boilers
JB/T 10356 Specification for burning equipment of fluidized bed
JB/T 10357 Constant support disc spring hangers
NB/T 10127 Performance design standard for furnaces and burners of large-capacity pulverized-coal-fired boilers
NB/T 47033 Attemperating and pressure reducing devices
NB/T 47034 Specification for industrial boilers
NB/T 47035 Energy performance assessment for industrial boilers system
NB/T 47038 Constant spring support and hanger
NB/T 47039 Variable spring hangers
NB/T 47040 Man-hole or hand-hole of boiler set
NB/T 47043 Technical specification for manufacture of boiler steel structures
NB/T 47044 Power station valves
NB/T 47049 Technical specification for the manufacture of tubular air preheaters
NB/T 47050 Technical specification of reciprocating grate
NB/T 47055 Painting and packing specification of boiler
NB/T 47060 The rotary air preheater
NB/T 47061 Energy efficiency index and grading of industrial boiler system
NB/T 47062 Biomass molded fuel fired boilers
NB/T 47063 Safety valves for power station
NB/T 47066 Thermal performance test method for condensing boiler
3 Terms, definitions and symbols
3.1 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 2900.48 and the following apply.
3.1.1
water-tube boiler
boiler in which the flue gas flows outside the tube on the heating surface and the working substance flows inside the tube
[Source: GB/T 2900.48-2008, definition 3.1.21]
3.1.2
boiler proper
whole boiler composed of drum, water (steam-water) separator, water storage tank, heating surface, header and its connecting pipes, furnace, combustion equipment, air preheater, furnace wall, flue (air) duct, framework (including platform and escalator), etc.
3.1.3
connecting pipe
unheated steam (water) connecting pipes between headers and between header and drum
3.1.4
pressure element
element subjected to pressure of internal or external working substance
Note: A pressure element is the basic unit to compose boiler pressure component.
3.1.5
pressure component
relatively independent component composed of several pressure elements in a boiler system
Note: Pressure components include drum, header, water-cooled wall, superheater, re-heater, economizer, etc.
3.1.6
non-pressure element
element not subjected to pressure of working substance
Note: Non-pressure elements include load-bearing and non-load-bearing elements, and load-bearing non-pressure elements include supports, hangers and fasteners.
3.1.7
safety appurtenance
appliance or device for protecting boiler from operating beyond design conditions
3.1.8
rated pressure
pressure of working substance at the boiler outlet that shall be guaranteed during long-term continuous operation within the specified feed water pressure and load range, i.e. the rated working pressure or rated outlet pressure marked on the nameplate of the boiler
3.1.9
working pressure
maximum pressure borne by the pressure element under normal design operating conditions
3.1.10
calculation pressure
pressure used to determine the required thickness of the pressure element under the calculation temperature
3.1.11
rated temperature
temperature of working substance at the boiler outlet that shall be guaranteed during long-term continuous operation under the specified design conditions, i.e. the rated steam temperature or rated outlet water temperature marked on the nameplate of the boiler
3.1.12
calculation temperature
metal temperature of pressure elements or load-bearing non-pressure elements (i.e. the arithmetic mean of the internal/external wall temperature) which is set under normal working conditions
Note: It is also commonly known as “calculated wall temperature”.
3.2 Symbols
For the purposes of this document, the following symbols apply.
p——the rated pressure, MPa;
Rm——the lower limit of standard tensile strength of material at room temperature, MPa;
ReL(Rp0.2)——the standard yield strength of material at room temperature, MPa;
——the yield strength of material at design temperature, MPa;
——the endurance strength of material at design temperature (105h), MPa;
——the creep strength of material at design temperature (1×10-5%/h), MPa;
θ——the quality coefficient of cast steel.
4 Responsibilities
4.1 User
The user shall determine the technical requirements of the water-tube boiler (hereinafter referred to as “boiler”) according to various factors related to the service conditions, and provide the manufacturer with the following conditions for design and fabrication in written form:
Foreword i
Introduction iv
1 Scope
2 Normative references
3 Terms, definitions and symbols
4 Responsibilities
5 Definition of boiler range
6 Parameters of boiler
7 Basic requirements
8 Design
9 Fabrication, installation and performance test
10 Energy conservation and environmental protection
Bibliography
Water-tube boilers - Part 1: General requirements
1 Scope
1.1 This document specifies the general technical requirements for water-tube boilers, such as the range, boil parameters, construction specifications, energy conservation and environmental protection.
1.2 This document is applicable to the stationary water-tube boilers within the following range:
a) steam boilers with a rated steam pressure of larger than or equal to 0.1MPa;
b) hot water boilers with a rated outlet pressure of larger than or equal to 0.1MPa and rated thermal power of larger than or equal to 0.1MW;
c) gas pass heat recovery boilers with the main purpose of recovery (waste) heat utilization.
1.3 This document is not applicable to the water-tube boilers within the following range:
a) movable water-tube boilers;
b) cooling devices for the cooling requirements of equipment and process flow.
1.4 This document may be used as a reference to stationary water-tube boilers with rated pressure of less than 0.1MPa.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 753 Steam condition series for utility boilers
GB/T 1921 Parameters for industrial steam boilers
GB/T 2900.48 Electrotechnical terminology of boilers
GB 3095 Ambient air quality standard
GB 3096 Environmental quality standard for noise
GB/T 3166 Parameters for hot water boilers
GB/T 10180 Thermal performance test code for industrial boilers
GB/T 10184 Performance test code for utility boiler
GB/T 10863 Thermal test method for gas pass heat recovery boiler
GB/T 10868 Steam converting valves for power station
GB/T 10869 Control valves for power station
GB/T 11943 Boiler drawings
GB/T 12241 Safety valves - General requirements
GB 12348 Emission standard for industrial enterprises noise at boundary
GB 13223 Emission standard of air pollutants for thermal power plants
GB 13271 Emission standard of air pollutants for boilers
GB/T 16507.2 Water-tube boilers - Part 2: Materials
GB/T 16507.3 Water-tube boilers - Part 3: Structure design
GB/T 16507.4 Water-tube boilers - Part 4: Strength calculation of pressure parts
GB/T 16507.5 Water-tube boilers - Part 5: Fabrication
GB/T 16507.6 Water-tube boilers - Part 6: Inspection, testing and acceptance
GB/T 16507.7 Water-tube boilers - Part 7: Safety appurtenances and instruments
GB/T 16507.8 Water-tube boilers - Part 8: Installation and operation
GB 18485 Standard for pollution control on the municipal solid waste incineration
GB/T 22395 Specification for design of boiler steel structures
GB 24500 Minimum allowable values of energy efficiency and energy efficiency grades of industrial boilers
GB/T 28056 General specification for gas pass heat recovery boiler
GB/T 28057 Specification for oxygen converter heat recovery boiler
GB/T 29052 Guide for techniques of water and energy saving in industrial steam boiler system
GB/T 29462 Isolation valve for power station
GB/T 30576 Specification of heat recovery boiler for notary cement kiln
GB/T 30577 Specification of heat recovery steam generator for combined-cycle for gas-steam
GB/T 34348 Specification for utility boiler system
GB/T 36514 Alkali recovery boilers
GB/T 36699 Specification for liquid fuels and gaseous fuels burners of boilers
DL/T 5054 Code for design of steam/water piping of fossil-fired power plant
JB/T 2192 Specification for square cast-iron economizer
JB/T 3271 Specification for travelling grate stokers
JB/T 6734 Calculation method of strength of boiler fillet welding seam
JB/T 6735 Calculation method of strength of boiler hanger rod
JB/T 7985 Specification for small type boilers and atmospheric hot water boilers
JB/T 8501 Boiler soot blowers and thermoprobe
JB/T 9623 Specification for exhaust muffler of fossil power plant
JB/T 10249 Specification of MSW incineration boilers
JB/T 10325 Specification for boiler deaerator
JB/T 10355 Specification of spreader stokers for boilers
JB/T 10356 Specification for burning equipment of fluidized bed
JB/T 10357 Constant support disc spring hangers
NB/T 10127 Performance design standard for furnaces and burners of large-capacity pulverized-coal-fired boilers
NB/T 47033 Attemperating and pressure reducing devices
NB/T 47034 Specification for industrial boilers
NB/T 47035 Energy performance assessment for industrial boilers system
NB/T 47038 Constant spring support and hanger
NB/T 47039 Variable spring hangers
NB/T 47040 Man-hole or hand-hole of boiler set
NB/T 47043 Technical specification for manufacture of boiler steel structures
NB/T 47044 Power station valves
NB/T 47049 Technical specification for the manufacture of tubular air preheaters
NB/T 47050 Technical specification of reciprocating grate
NB/T 47055 Painting and packing specification of boiler
NB/T 47060 The rotary air preheater
NB/T 47061 Energy efficiency index and grading of industrial boiler system
NB/T 47062 Biomass molded fuel fired boilers
NB/T 47063 Safety valves for power station
NB/T 47066 Thermal performance test method for condensing boiler
3 Terms, definitions and symbols
3.1 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 2900.48 and the following apply.
3.1.1
water-tube boiler
boiler in which the flue gas flows outside the tube on the heating surface and the working substance flows inside the tube
[Source: GB/T 2900.48-2008, definition 3.1.21]
3.1.2
boiler proper
whole boiler composed of drum, water (steam-water) separator, water storage tank, heating surface, header and its connecting pipes, furnace, combustion equipment, air preheater, furnace wall, flue (air) duct, framework (including platform and escalator), etc.
3.1.3
connecting pipe
unheated steam (water) connecting pipes between headers and between header and drum
3.1.4
pressure element
element subjected to pressure of internal or external working substance
Note: A pressure element is the basic unit to compose boiler pressure component.
3.1.5
pressure component
relatively independent component composed of several pressure elements in a boiler system
Note: Pressure components include drum, header, water-cooled wall, superheater, re-heater, economizer, etc.
3.1.6
non-pressure element
element not subjected to pressure of working substance
Note: Non-pressure elements include load-bearing and non-load-bearing elements, and load-bearing non-pressure elements include supports, hangers and fasteners.
3.1.7
safety appurtenance
appliance or device for protecting boiler from operating beyond design conditions
3.1.8
rated pressure
pressure of working substance at the boiler outlet that shall be guaranteed during long-term continuous operation within the specified feed water pressure and load range, i.e. the rated working pressure or rated outlet pressure marked on the nameplate of the boiler
3.1.9
working pressure
maximum pressure borne by the pressure element under normal design operating conditions
3.1.10
calculation pressure
pressure used to determine the required thickness of the pressure element under the calculation temperature
3.1.11
rated temperature
temperature of working substance at the boiler outlet that shall be guaranteed during long-term continuous operation under the specified design conditions, i.e. the rated steam temperature or rated outlet water temperature marked on the nameplate of the boiler
3.1.12
calculation temperature
metal temperature of pressure elements or load-bearing non-pressure elements (i.e. the arithmetic mean of the internal/external wall temperature) which is set under normal working conditions
Note: It is also commonly known as “calculated wall temperature”.
3.2 Symbols
For the purposes of this document, the following symbols apply.
p——the rated pressure, MPa;
Rm——the lower limit of standard tensile strength of material at room temperature, MPa;
ReL(Rp0.2)——the standard yield strength of material at room temperature, MPa;
——the yield strength of material at design temperature, MPa;
——the endurance strength of material at design temperature (105h), MPa;
——the creep strength of material at design temperature (1×10-5%/h), MPa;
θ——the quality coefficient of cast steel.
4 Responsibilities
4.1 User
The user shall determine the technical requirements of the water-tube boiler (hereinafter referred to as “boiler”) according to various factors related to the service conditions, and provide the manufacturer with the following conditions for design and fabrication in written form:
Contents of GB/T 16507.1-2022
Foreword i
Introduction iv
1 Scope
2 Normative references
3 Terms, definitions and symbols
4 Responsibilities
5 Definition of boiler range
6 Parameters of boiler
7 Basic requirements
8 Design
9 Fabrication, installation and performance test
10 Energy conservation and environmental protection
Bibliography
