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Engineering Construction Standard Full Text Information System
City Construction Industry Standard of the People's Republic of China CJ/T113—2000
Gas-fired space heaters for domestic use
2000-05-10 Issued
2000-10-01 Implementation
Ministry of Construction of the People's Republic of China
Engineering Construction Standard Full Text Information System
Engineering Construction Standard Full Text Information System
CJ/T113—2000
Cited Standards
Terms and Symbols
Classification and Model
Technical Requirements
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Test Methods
Inspection Rules·
Marking, Packaging, Transportation Transmission and storage
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Engineering construction standard full text information system
CJ/T113—2000
With the development of my country's economy, the source of urban gas is increasing, especially the exploitation and introduction of natural gas, and the market for household gas heaters is forming day by day. In order to ensure the quality and safety of gas heaters, this standard is specially compiled. This standard is mainly compiled with reference to JISS2122:1996 "Household Gas Heaters" approved by the Japanese Industrial Standards Research Committee and "Gas Appliance Installation Standards and Implementation Guidelines" formulated by the Japan Gas Appliance Testing Association. Because both countries are located in the eastern part of Asia, the climate conditions and living habits of people in China and Japan are relatively similar. In addition, European and American standards were also referred to during the compilation process.
This standard was proposed by the Standard and Quota Research Institute of the Ministry of Construction. This standard is under the jurisdiction of the China Municipal Engineering North China Design Institute, the technical unit responsible for urban gas standards of the Ministry of Construction.
This standard was drafted by Tongji University, Shanghai Gas Sales Group Co., Ltd., Shanghai Oriental Energy Co., Ltd., Shanghai Beixing Industrial Co., Ltd., and Zhanjiang Zhongxin Electric Co., Ltd.
The main drafters of this standard are: Xu Jihuan, Zhu Xianfen, and Shan Guofu. Engineering Construction Standard Full Text Information System
Engineering Construction Standard Full Text Information System
People's Republic of China Urban Construction Industry Standard Domestic Gas Heaters
Gas-fired space heaters for domestic use1Scope
CJ/T113—2000
This standard specifies the technical requirements, test methods and inspection rules for domestic gas space heaters (hereinafter referred to as heaters). This standard applies to domestic gas space heaters with a rated power of less than 19kW that use city gas to directly heat rooms by convection and radiation. 2
Cited Standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised, and the parties using this standard should explore the possibility of using the latest versions of the following standards. Packaging, storage and transportation pictorial marking
GB1911990
7Batch inspection counting sampling procedure and sampling table (applicable to GB/T2828-1987
continuous batch inspection)
GB/T28291987
periodic inspection counting sampling procedure and sampling table (applicable to the inspection of production process stability)
4Household gas instantaneous water heaters
GB69 32—-1994
GB/T7306—1987 Pipe threads with thread seals GB/T7307—1987 Pipe threads without thread seals Approved by the Ministry of Construction of the People's Republic of China on 2000-05-10 Engineering Construction Standards Full-text Information System
2000-10-01 Implementation
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GB/T 13611—1994
GB/T14437—1997
GB16410
City gas classification
Product quality supervision counting single sampling inspection procedures and sampling plans
Household gas stoves
GB/T16411—1996
General test methods for household gas appliances
6 Gas burning appliances using AC power supply safety General requirements CJ3062—1996
CJ/T3074—1998 Electronic controllers for household gas burning appliances CJ/T3075.2—1998
Gas burning appliance test room - test equipment and instruments 3 Terms and symbols
3.1 Rated load (I)
ratedheatinput
The input power (kW) of the heater at rated pressure. Flame failure device3.2
A device that automatically cuts off the gas input channel when the flame is accidentally extinguished. 3.3
Oxygen depletion sensorA device that automatically cuts off the gas input channel when the oxygen in the surrounding air is scarce. Thermal efficiency (n) heat efficiency
The ratio of the effective heat output of the heater at rated pressure to the heat input in the same time.
radiantefficiency
Radiant efficiency ()
The ratio of the radiant heat obtained in the dry air in the hemispherical space facing the heater at rated pressure to the heat input in the same time. 4 Classification and model
4.1 Heaters can be classified according to the type of applicable gas, the supply and exhaust method and the heat release method.
According to the type of applicable gas, heaters can be divided into three types, see Table 1. 2
Engineering Construction Standard Full Text Information System
Engineering Construction Standard Full Text Information System
Artificial gas heater
Natural gas heater
Liquid petroleum gas heater
Classification content
Applicable to artificial gas
Applicable to natural gas
Applicable to liquefied petroleum gas
Gas type code
According to the supply and exhaust method, heaters can be divided into the following types, see Table 2. Table 2
Dispersed type
Natural smoke exhaust type
Semi-enclosed type
Forced smoke exhaust type
Classification content
The air required for combustion is taken from the room, and the smoke produced after combustion is also discharged indoors. The heat load shall not be greater than 4.2kw
The air required for combustion is taken from indoors, and the smoke generated after combustion is discharged from the flue to the outside by natural gravity
The air required for combustion is taken from indoors, and the smoke generated after combustion is discharged from the flue to the outside by an exhaust fan
The air supply and exhaust pipe is extended through the outer wall to the outside, and the air is sucked in by natural gravity, and the smoke is naturally supplied and exhausted
Enclosed
Forced air supply and exhaust
The air supply and exhaust pipe is extended through the wall to the outside, and the fan is used to suck in air and exhaust smoke
Code diagram
Direct exhaust
Flue
Forced exhaust flue DQ Figure 26
Balanced
Forced balanced PQ
2 Figure 3b
According to the heat release method, heaters can be divided into three types as shown in Table 3. Table 3
Radiant heater
Natural convection heater
Forced convection heater
Classification content
Mainly using radiation to heat the room
Using natural convection to heat the room
Using forced convection to heat the room
Schematic diagram
According to the location where the heater is installed, the heater is also divided into outdoor units and indoor units. 3
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The code used for outdoor installation of heaters is W.
Figure 1 Open heater (direct exhaust type)
Air conditioning
a) Natural exhaust type (flue type)
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Nofeng exhaust single
b) Forced exhaust type (forced flue type)
Semi-closed heater
Engineering construction standard full text information system
a) Natural supply and exhaust type (balanced type)
Supply and exhaust calculation
b) Forced supply and exhaust type (forced balanced type)Figure 3 Closed heater
Figure 4 Radiant heater
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Combustion chamber
Main burner
Flameout protection device
Gas pipe
Figure 5 Natural convection heater
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Engineering Construction Standard Full-text Information System
Filter device
Overheat protection
Thermoelectric false
Forced convection heater
Model of heater
4.2.1 Compilation of heater model
Rated load
Type of gas
Supply and exhaust method
4.2.2 The heater is represented by the Chinese pinyin letters JN. For gas types and supply and exhaust methods, see Table 1 and Table 2. 4.2.3
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Remodel number
Engineering Construction Standard Full-text Information System
Example:
5 Technical requirements
5.1 Basic design parameters
First design
Rated load is 3kW
Direct smoke exhaust type (dispersed type)
Applicable to 20Y liquefied gas
Household gas heater
The pressure value of the gas before the heater shall comply with the provisions of Table 4. 5.1.1
Gas Type
5R.6R.7R, 4T6T
10T, 12T, 13T
19Y, 20Y, 22Y
For heaters used in plateau areas, the effect of altitude on load should be considered. 5.2
Performance Requirements
The performance of the heater should meet the requirements of Table 5.
Gas passage air tightness
Performance requirements
a) When air at a pressure of 4.2kPa passes through the sealing valve, the leakage should be less than 0.07L/h
b) When air at a pressure of 4.2kPa passes through the control valve, the leakage should be less than 0.55L/h
c) When all burners are ignited at 1.5 times the rated pressure, there should be no leakage from the gas inlet to the combustion hole
Engineering Construction Standard Full Text Information System
Test method
Applicable models
ZDDPPW
Engineering Construction Standard Full Text Information System
Table 5 (continued)
Performance requirements
Measured load The load deviation from the rated load should not be
Load deviation
Flame transmission
Flame state
Flame stability
Combustion noise
Flame extinction noise
Contact yellow flame
80
Volume concentration in dry smoke (.
Small fire burner
Stability
Smoke exhaust system
When the flue is blocked
Oxygen-deficient combustion
Fire burner
Small fire burner
Smoke exhaust system
Dry smoke volume concentration (α-1)
Ignition condition
Spraying condition
More than ±10%
After igniting a fire hole, the flame should be at 48|| All fire holes are connected and there is no deflagration. The flame should be clear and even: There should be no obvious flame in flameless combustion. The flame does not produce black smoke. No flashback, flameout or flame separation occurs. <60dB(A) ≤85dB(A) During normal use, the electrode and the heat exchange component do not contact each other. Yellow flame ≤0.03%; after durability test ≤<0.20%, after durability test ≤<0.20%, no flashback or flameout occurs. Except for the exhaust port, there is no smoke leakage in other parts. The carbon monoxide content (a=1) in the smoke flowing back from the backdraft exhaust hood ≤0.20%* <0.28% after durability test. |tt||When the oxygen concentration in the air (T) is 18%
, the 80 volume concentration is ≤0.04%, and after the durability test, it is <0.07%
No flameout, flashback and flame separation phenomenon that hinders use
No flameout and flashback phenomenon
Except for the exhaust port, there is no smoke leakage in other parts
≤0.20%, after the durability test, it is ≤
Reliable flame transmission, no deflagration phenomenon
There is no flashback and
flameout phenomenon in the main fire and small fire burners
There should be no accumulated water in the shell that hinders use
Engineering Construction Standard Full Text Information System
Test Method
GB6932
GB6932
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Applicable Machine Science7R, 4T6T
10T, 12T, 13T
19Y, 20Y, 22Y
For heaters used in plateau areas, the effect of altitude on load should be considered. 5.2
Performance requirements
The performance of the heater should meet the requirements of Table 5.
Gas passage air tightness
Performance requirements
a) When air at a pressure of 4.2kPa passes through the sealing valve, the leakage should be less than 0.07L/h
b) When air at a pressure of 4.2kPa passes through the control valve, the leakage should be less than 0.55L/h
c) When all burners are ignited at 1.5 times the rated pressure, there should be no leakage from the gas inlet to the combustion hole
Engineering Construction Standard Full Text Information System
Test method
Applicable models
ZDDPPW
Engineering Construction Standard Full Text Information System
Table 5 (continued)
Performance requirements
Measured load The load deviation from the rated load should not be
Load deviation
Flame transmission
Flame state
Flame stability
Combustion noise
Flame extinction noise
Contact yellow flame
80
Volume concentration in dry smoke (.
Small fire burner
Stability
Smoke exhaust system
When the flue is blocked
Oxygen-deficient combustion
Fire burner
Small fire burner
Smoke exhaust system
Dry smoke volume concentration (α-1)
Ignition condition
Spraying condition
More than ±10%
After igniting a fire hole, the flame should be at 48|| All fire holes are connected and there is no deflagration. The flame should be clear and even: There should be no obvious flame in flameless combustion. The flame does not produce black smoke. No flashback, flameout or flame separation occurs. <60dB(A) ≤85dB(A) During normal use, the electrode and the heat exchange component do not contact each other. Yellow flame ≤0.03%; after durability test ≤<0.20%, after durability test ≤<0.20%, no flashback or flameout occurs. Except for the exhaust port, there is no smoke leakage in other parts. The carbon monoxide content (a=1) in the smoke flowing back from the backdraft exhaust hood ≤0.20%* <0.28% after durability test. |tt||When the oxygen concentration in the air (T) is 18%
, the 80 volume concentration is ≤0.04%, and after the durability test, it is <0.07%
No flameout, flashback and flame separation phenomenon that hinders use
No flameout and flashback phenomenon
Except for the exhaust port, there is no smoke leakage in other parts
≤0.20%, after the durability test, it is ≤
Reliable flame transmission, no deflagration phenomenon
There is no flashback and
flameout phenomenon in the main fire and small fire burners
There should be no accumulated water in the shell that hinders use
Engineering Construction Standard Full Text Information System
Test Method
GB6932
GB6932
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Applicable Machine Science7R, 4T6T
10T, 12T, 13T
19Y, 20Y, 22Y
For heaters used in plateau areas, the effect of altitude on load should be considered. 5.2
Performance requirements
The performance of the heater should meet the requirements of Table 5.
Gas passage air tightness
Performance requirementswwW.bzxz.Net
a) When air at a pressure of 4.2kPa passes through the sealing valve, the leakage should be less than 0.07L/h
b) When air at a pressure of 4.2kPa passes through the control valve, the leakage should be less than 0.55L/h
c) When all burners are ignited at 1.5 times the rated pressure, there should be no leakage from the gas inlet to the combustion hole
Engineering Construction Standard Full Text Information System
Test method
Applicable models
ZDDPPW
Engineering Construction Standard Full Text Information System
Table 5 (continued)
Performance requirements
Measured load The load deviation from the rated load should not be
Load deviation
Flame transmission
Flame state
Flame stability
Combustion noise
Flame extinction noise
Contact yellow flame
80
Volume concentration in dry smoke (.
Small fire burner
Stability
Smoke exhaust system
When the flue is blocked
Oxygen-deficient combustion
Fire burner
Small fire burner
Smoke exhaust system
Dry smoke volume concentration (α-1)
Ignition condition
Spraying condition
More than ±10%
After igniting a fire hole, the flame should be at 48|| All fire holes are connected and there is no deflagration. The flame should be clear and even: There should be no obvious flame in flameless combustion. The flame does not produce black smoke. No flashback, flameout or flame separation occurs. <60dB(A) ≤85dB(A) During normal use, the electrode and the heat exchange component do not contact each other. Yellow flame ≤0.03%; after durability test ≤<0.20%, after durability test ≤<0.20%, no flashback or flameout occurs. Except for the exhaust port, there is no smoke leakage in other parts. The carbon monoxide content (a=1) in the smoke flowing back from the backdraft exhaust hood ≤0.20%* <0.28% after durability test. |tt||When the oxygen concentration in the air (T) is 18%
, the 80 volume concentration is ≤0.04%, and after the durability test, it is <0.07%
No flameout, flashback and flame separation phenomenon that hinders use
No flameout and flashback phenomenon
Except for the exhaust port, there is no smoke leakage in other parts
≤0.20%, after the durability test, it is ≤
Reliable flame transmission, no deflagration phenomenon
There is no flashback and
flameout phenomenon in the main fire and small fire burners
There should be no accumulated water in the shell that hinders use
Engineering Construction Standard Full Text Information System
Test Method
GB6932
GB6932
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Applicable Machine Science
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