Some standard content:
GB16691—1996
This standard adopts JISS2147-1991 "Portable Liquefied Petroleum Gas Stove" standard in a non-equivalent manner. This standard has higher requirements for the concentration of carbon monoxide produced by combustion than the original standard in accordance with the current living conditions and use environment in my country. A chapter on inspection rules has been added to this standard, which is written in accordance with the requirements of the current standards GB2828 and GB2829 in my country and taking into account the particularity of the product.
This standard is proposed by the State Administration of Technical Supervision. This standard is managed by the Ministry of Construction's Urban Gas Standards and Technology Management Unit. This standard is edited by China Municipal Engineering North China Design Institute. The main drafters of this standard are: Wang Qi and Zhai Enbo. 751
1 Scope
National Standard of the People's Republic of China
Portable butane cooker
Portable butane cooker
GB16691-1996
This standard specifies the definition, technical requirements, test methods, inspection rules and marking, packaging, transportation and storage of portable butane cookers (hereinafter referred to as portable cookers).
The portable cookers specified in this standard use the gas cylinders specified in GB16692-1996 "Butane gas cylinders for portable cookers". 2 Referenced 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 are subject to revision, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB2828-87 Count sampling procedure and sampling table for batch inspection (applicable to inspection of continuous batches) GB2829-87 Count sampling procedure and sampling table for periodic inspection (applicable to inspection of stability of production process) GB2903--89 Copper-copper-nickel (constantan) thermocouple wire and graduation table GB3772-83 Platinum 10-platinum thermocouple wire and graduation table GB/T16411-1996 General test methods for household gas appliances GB16992-1996 Butane gas cylinders for portable stoves 3 Definitions
This standard adopts the following definitions.
3.1 Butane consumption The mass of butane gas consumed by the portable stove per unit time (g/h). 3.2 Rated butane consumption The gas consumption of the portable stove specified in the design (g/h). 3.3 Overpressure cut-off device High-pressure cut-off device A device that automatically disconnects the gas cylinder from the stove body when the pressure of the gas cylinder reaches a certain value. 4 Model compilation
4.1 Portable stoves are indicated by the Chinese phonetic alphabet BDZ. 4.2 The rated gas consumption of portable stoves is indicated by Arabic numerals (g/h). 4.3 The modified model is indicated by the English letters A, BC…
Approved by the State Administration of Technical Supervision on December 18, 1996752
Implemented on April 1, 1997
GB166911996
Reformed model
Rated gas consumption
Portable butane gas stove
The above example shows that the rated gas consumption of a portable butane gas stove is 160g/h, which is the second modification. 5 Technical requirements
5.1 Performance requirements
The performance requirements of portable stoves shall comply with the provisions of Table 1: Table 1
Performance requirements of portable stoves
Air tightness of butane gas passage
Pressure resistance of butane gas passage
Normal use state
Use of super large boiler
Gas cylinder outlet to pressure regulator
Pressure regulator to plug valve
Plug valve to flame hole
Performance requirements
No leakage, deformation and damage
The flame propagation speed should be small At 4$. No deflagration, no flame separation
No flameout
Uniform flame
No directional flame
Combustion noise below 60dB
Flameout noise below 85dB
CO concentration should be less than 0.05%, less than 0.14% after durability test, no black smoke, yellow flame does not touch the electrode during normal combustion, no shaking, blurring and irritating smell, no air leakage
Test method
Temperature rise under normal conditions
GB16691-1996
Table 1 (end)|| tt||Performance requirements
Parts that must be touched by the hand during operation
Parts that may be touched by the hand during operation
Parts that are not easily touched by the hand during operation
Surface of the plug valve
Surface of the regulator
Surface of the ignition device
Surface of the dry battery
Surface of the wooden platform under the shell
Temperature rise of using a super large potSurface of the wooden platform under the shellElectric ignition performance
Internal pressure of the gas cylinder
Action of the overpressure cut-off device
Plug valve
Electric ignition device
Regulator
Overpressure cut-off device
Metal part 25K or less
Non-metal part 35K or less
65 or less
105 or less
50K or less or meet the air tightness requirements of the gas path after the heat test, and do not affect the use
35K or less or meet the air tightness requirements of the gas path after the heat test, the regulator outlet pressure change is less than 8% 50K or less or do not hinder the use after the heat test 20K or less
65 or less
100 The following
8 out of 10 ignitions can be ignited, and there is no continuous non-ignition and deflagration phenomenon. Below 0.4MPa
Close the gas line within the pressure range of 0.40.7MPa, and the gas line cannot be automatically opened after closing 12000 times
12000 times
Under 0.2 MPa
Under 0. 7 MPa
Connect the gas cylinder and the portable stove 6000 times
Performance of the portable stove
5.2 Structure and size
Thermal efficiency
Accuracy of gas consumption
30000 times
1000 times
No leakage, and no fault affecting use
No leakage, in line with the ignition requirements, and no fault affecting use
No leakage, and pressure regulation The outlet pressure change of the pressure regulator is less than 8% without leakage, and the outlet pressure change of the pressure regulator is less than 8% without leakage, and meets the action performance requirements of the overpressure cut-off device
No leakage
Above 45%
-10%～410%
Test method
5.2.1 General structure
5.2.1.1 The design of portable stoves and their components should take into account safety and durability such as no leakage and fire prevention. Under normal conditions of transportation, installation and use, it should not be damaged or deformed to affect its use; the processing and manufacturing dimensions should meet the design requirements; 5.2.1.2 The burning state of the portable stove burner can be clearly seen from the outside; 5.2.1.3 The burner can be easily ignited with matches, igniters, etc.; 5.2.1.4 When in use or cleaning, the parts that can be touched by hands should be smooth; 5.2.1.5 When cleaning, the removable parts can be removed and installed with ordinary tools; 5.2.7.6 The screws used for assembly should be firm, and the parts that need to be removed for maintenance and inspection should withstand repeated loading and unloading; 5.2.1.7 The butane gas passage should meet the following requirements: 754
GB 16691-1996
a) The gas pipeline shall not be installed in overheated or corrosive places, or protective measures that do not hinder its use shall be taken; b) The connection parts shall be tight and leak-proof regardless of welding, threaded connection or flange connection; c)
Equipped with a plug valve.
5. 2. 1. 10
The disassembly of the gas cylinder should be convenient, flexible and reliable. The gas cylinder should be installed horizontally and cannot be used if it is installed in a misaligned position. The gas cylinder cannot be installed if the stopcock is in the open state. 5. 2. 1. 11
5. 2. 1. 14
5. 2. 1. 16
5. 2. 1. 17
5. 2. 1. 18
5. 2. 1.19
Butane gas shall not be retained in the box where the gas cylinder is installed. A pressure regulator shall be installed.
An overpressure cut-off safety device shall be installed.
Under normal use, except for the legs, other parts shall not touch the table. It shall not be easy to move or overturn under normal installation and use. When tilted at an angle of less than 10° in any direction, the portable stove shall not overturn and parts that may cause fire shall not move or fall off. There shall be no leakage or damage after vibration and drop tests, and it shall meet the requirements of the combustion state. Under normal load, there shall be no damage or deformation that affects use. Under normal use, the fuel released from the gas cylinder is in a gaseous state. The liquid tray and pot support shall not be used when placed upside down. 5. 2. 1. 20
5.2.1.21 The liquid tray and pot support shall not be placed when the gas cylinder is placed in the stove body. 5.2.2 Plug valve
The plug valve shall comply with the following provisions.
a) The gas path is unobstructed and can be opened and closed flexibly;
b) The switch direction is marked, and it is opened counterclockwise. 5.2.3 Nozzle
The nozzle should be located in a position or state that is not easily blocked by dust, dirt, etc. 5.2.4 Burner
The burner should meet the following requirements:
a) There are no defects in riveting, welding and other parts that hinder use; b) The fire hole is made correctly and should not produce deformation that affects combustion; each component should be able to maintain its correct relative position and should not move or fall off during normal use; c)
d) Except for the parts that must be heated, other parts should not be damaged by heat; e) Easy to clean.
5.2.5 Air Regulator
The air regulator should meet the following requirements (except for those without air regulator): a) The air volume adjustment is simple, flexible and reliable, and the set position should not be changed during normal use; b) The air regulator knob should be located in a position that is easy to operate. 5.2.6 Pot support
The pot support shall meet the following requirements:
a) It has the strength to withstand normal use; b) It is stable under normal use.
5.2.7 Liquid receiving tray
The liquid receiving tray shall meet the following requirements:
a) It has the shape to receive the overflowing liquid; b) It can be removed without tools. However, for the structure in which the liquid receiving tray and the upper cover are integrated, it can be removed with common tools (except for the stove that is easy to clean inside). bZxz.net
5.2.8 Electric ignition device
GB16691-1996
5.2.8.1 Portable stoves that use electric heating wire for ignition shall meet the following requirements. a) The relative position of the ignition electric heating wire and the burner shall be fixed; b) Consumables such as dry batteries and ignition electric heating wires shall be easy to replace. 5.2.8.2 For electric ignition using discharge sparks, the following provisions shall be met: a)
The electrode is installed in a position that does not often contact the yellow flame; the corresponding position of the electrode and the burner remains fixed during normal use; b)
c) The distance between the high-voltage wiring and the non-electrical metal part should be greater than the electrode gap, or have good insulation to prevent leakage during ignition:
d) During normal use, high-voltage wiring that can be touched by hand should have insulation measures. 5.2.9 Overpressure cut-off device
The high-pressure side pressure of the portable stove gas circuit can automatically close the gas circuit within the range of 0.4 to 0.7 MPa; or the gas cylinder can be automatically unloaded. The gas circuit cannot be automatically opened when the pressure drops below 0.4 MPa. 5.3 Materials
The materials used in the stove must be able to withstand mechanical, chemical and heat resistance when used under normal and most unfavorable conditions, and must meet the following provisions.
5.3.1 The materials in contact with butane gas shall be suitable heat-resistant and corrosion-resistant materials. They shall not melt at 350℃ from the gas cylinder to the nozzle bracket and shall not melt at 500℃ from the nozzle bracket to the fire hole. They shall also meet the following requirements: a) They shall not melt or deform in the heat resistance test at the specified temperature; b) They shall not be corroded in the corrosion resistance test;
The porcelain part shall not fall off in the steel ball impact test. c)
5.3.2 Gaskets and sealing materials used in gas path parts shall meet the following requirements: a) The mass change rate of rubber, plastic and other materials used as gaskets shall be less than 20%, and there shall be no softening, deterioration and other phenomena that affect the use. The leakage of n-pentane in rubber shall be less than 5 mg/h; b) When the sealing grease used as sealing material is tested in accordance with 6.3.3, the mass change rate shall be less than 10% when the butane gas temperature is 20°C, and the mass change rate shall be less than 25% when the butane gas temperature is 4°C. The sealing performance after inspection shall be good. 5.3.3 The conductive material shall be copper and its alloys, or other metal materials with better electrical, thermal and mechanical properties than copper. 5.3.4 Gas path, fuel The heat preservation materials and insulation materials near the burning parts and electrical devices shall not burn when the heat resistance test is carried out according to 6.3.5, or even if they burn, they shall be extinguished within 1 minute when the fire source is extinguished. 5.3.5 The air regulating plate, pot support and liquid receiving pan shall be made of materials that do not melt at 500℃, are not flammable and are corrosion-resistant. 5.3.6 The legs of portable stoves shall meet the following requirements: The parts in contact with the tabletop shall be made of rubber or other non-slip materials; a)
b) The rubber or other non-metallic materials in contact with the tabletop shall not be deformed to hinder use when tested according to 6.3.6; The hardness of the rubber used in the parts in contact with the tabletop shall be HS (Shore A) of 50 to 90. c
5.3.7 The base of the burner shall be made of non-flammable and corrosion-resistant materials. 5.4 Appearance requirements
The outer shell of the portable stove shall be flat, the surface treatment shall be even, and there shall be no wrinkles, cracks, paint peeling, porcelain peeling and other obvious appearance defects. 6 Test methods
6.1 Test conditions
6.1.1 Laboratory conditions
When there are no special provisions for the project, the laboratory should meet the following conditions. However, this requirement does not need to be met if it does not affect the test results according to the test project requirements.
GB 16691-1996
a) The laboratory temperature is (20 ± 15) (, the temperature change during the test should be less than 5K. The laboratory temperature should be measured 1 m away from the portable stove. The probe of the thermometer is fixed at a height roughly the same as the top surface of the portable stove. The temperature is measured at the front, left and right three places, and the average value is taken as the room temperature. However, the probe part of the thermometer should not be affected by the smoke and radiant heat discharged by the portable stove. The C content in the air in the laboratory shall not exceed 0.002%, the CO content shall not exceed 0.2%, and there should be no gas that affects combustion. b)
6.7.2 Test gas and gas cylinders
The butane gas and gas cylinders specified in GB16692--1996 "Butane Gas Cylinders for Portable Stoves" should be used. 6.1.3 Test instruments and meters
The test instruments and meters are shown in Table 2.
Table 2 Test instruments
Inspection items
Gas temperature
Surface temperature
Atmospheric pressure
Gas composition
"Alkane gas and air pressure
"Combustion quality
6.2 Structure and size
Thermometer
Thermometer
Thermometer
Surface temperature
Moving tank mercury barometer
Fixed tank mercury barometer
Air Box barometer
Chromatograph
Thermal magnetic instrument, infrared instrument or combustion efficiency tester Chromatograph, infrared instrument or combustion efficiency tester Chromatograph, infrared instrument
Sound level meter
Anemometer
Pressure gauge
Lower scale
Steel ruler
0～50℃
0~50℃
0～100℃
0～250C
81107kPa
81～107 kPa
81107kPa
40120 dB
0~~10 m/s
.0~1. 6 MPa
0~500g
1000mm
Minimum scale
0. 05 MPa
6.2.1 General test method
For items without special provisions, the test can be carried out by visual inspection, measurement, operation and test instruments according to the contents specified in 5.2. 6.2.2 Tilt and overturn test
The tilt and overturn test is to place the portable stove in a horizontal position on the tilt test machine (or test bench). When the portable stove placement surface on the test machine (or test bench) is slowly tilted to 10°, check whether it has overturned and whether the parts that may cause fire have moved or fallen off. 6.2.3 Vibration and drop test
6.2.3.1 Vibration test
Fix the portable stove in the packaged transportation state on the vibration test machine. The vibration frequency is 10Hz. The full amplitude is 5mm. Move it up and down and left and right for 30 minutes each, and then conduct the test in 6.4
6.2.3.2 Drop test
GB 16691-1996
After installing the gas cylinder on the portable stove and setting it to the ignition state directly, let the burner of the stove point upwards and fall from a height of 30 cm onto a horizontal wooden floor. Then, carry out the test in item 6.4.
6.2.4 Structure of electric ignition device
The structure of the electric ignition device using discharge sparks shall be tested by the following methods: a) The electrode position shall be checked by visual inspection or according to 6.7.1.3j); b) The fixation of the electrode shall be checked by visual inspection.
6.2.5 Load test
The load test shall be carried out in accordance with the following provisions:
a) Pot support Place the pot support horizontally on the fixed plate, add a static load of 49N (weight with a diameter of 260mm) to its center for 5 minutes, and visually check for deformation and damage; b) Portable stove Place the portable stove horizontally on a solid platform, add a static load of 49N (weight with a diameter of 260mm) to the center of each support of the portable stove, and visually check for deformation and damage. 6.3 Material test
6.3.1 Heat resistance
Put the material sample into a high-temperature furnace, slowly raise the temperature in the furnace to the specified temperature, keep the temperature constant for 1 hour, and visually check for deformation or melting by analyzing the temperature rise record of the sample. 6.3.2 Corrosion resistance test
Perform in accordance with 15.2 of GB/T16411-1996. 6.3.3 Butane gas resistance test
Perform according to 15.3 of GB/T16411-1996. 6.3.4 Steel ball impact test
Perform according to 15.4 of GB/T16411-1996. 6.3.5 Flame resistance test (thermal insulation materials) Perform according to 15.5 of GB/T16411-1996. 6.3.6 Oil resistance test
The oil resistance test of rubber used for legs is to immerse the sample in edible oil (soybean oil, etc.) at a temperature of 20 (±15°C) for 24 hours to check whether there is any deformation that will hinder its use.
6.4 Air tightness test of gas circuit
6.4.1 Gas cylinder outlet to pressure regulator
Connect the gas source according to the test device shown in Figure 1, fully open the stopcock, pressurize to 0.9MPa for 1 minute, and use soap solution to check whether there is any leakage in the gas circuit from the gas cylinder outlet to the pressure regulator. The test should be carried out without the overpressure cut-off device operating. 6.4.2 Pressure regulator to plug valve
Install the gas cylinder on the portable stove, close the plug valve, and use soap solution or a check flame to check if there is any leakage between the low-pressure side of the pressure regulator and the plug valve.
6.4.3 Plug valve to fire hole
Open the plug valve, ignite the burner, and use a flame to check if there is any leakage from the plug valve to the fire hole. 6.5 Pressure test of gas circuit
Connect the portable stove to the test tube shown in Figure 1. On the device, open the stopcock, pressurize 1.3MPa between the cylinder outlet and the stopcock for 1min, and visually check whether there is leakage, deformation or damage on the high-pressure side of the pressure regulator. This test should be carried out when the overpressure cut-off device does not operate.
Xie Yisuan
6.6 Gas consumption and accuracy test
6.6.1 Test conditions
The test conditions are as follows:
Intake valve
GB16691-1996
Exhaust
Figure 1 Pressure and air tightness test device
Pressure gauge
Flow regulator
a) The test gas cylinder is the test gas cylinder specified in 6.1.2 and placed in the air at 20-25°C for more than 2 hours; b) The test room temperature is 20-25;
c) The setting state of the portable stove is to open the stopcock to the maximum, the test pot is the size specified in Table 3, the water injection amount is more than 1/2 of the pot depth, and the burner with adjustable air volume is adjusted to a good combustion state. 6.6.2 Test method
Carry out a combustion test for 3 gas cylinders for 30 minutes each, and calculate the gas consumption according to formula (1). Calculate the gas consumption accuracy according to formula (2). W
Wherein, w.
Gas consumption.g/h;
Mass of gas cylinder before test, g:
Mass of gas cylinder after test.g:
1, 2, 3.
Gas consumption
Below 90
90～115
115 -- 145
145~175
175~210
210~250
250-300
Gas consumption accuracy
C(w.. - w.)
Measured gas consumption—·Customer
Rated gas consumption
×100%
Rated gas consumption
Table 3 Specifications and dimensions of the test pot
Nominal dimensions of the pot
Amount of water when measuring thermal efficiency
6.7 Combustion state test
6.7.1 Normal use combustion state
6.7.1.1 Test conditions
GB 16691-1996
The test conditions shall comply with the provisions of 6.6.1, and the gas volume in the gas cylinder shall be greater than 50% of the rated filling volume. 6.7.1.2 Setting state of portable stove
The setting state of portable stove shall comply with the provisions of 6.6.1c). 6.7.1.3 Test method
Flame transmission The following test shall be repeated 5 times.
1) After one fire hole of the main burner is ignited, check whether all the fire holes are quickly transferred. Ignition method: If there is an ignition device, use the ignition device to ignite; if there is no such device, use a match or a fire starter to ignite. 2) Check for deflagration.
3) If there is an ignition burner or a small fire burner, check the difficulty of ignition of the main burner fire hole by this burner. Ignite the burner from the flame. After 15 s, visually check whether it is flamed out. b)
Extinguish the flame Ignite the burner and visually check whether it is extinguished after 15 s. Flame uniformity Ignite the burner and visually check whether the flame is uniform after the flame stabilizes. Flashback Ignite the burner for 30 minutes and visually check whether it is flashback. Combustion noise is carried out according to 8.2.1 of GB/T16411-1996. According to 8.2.2 of GB/T16411--1996. Flameout noise #
() concentration Ignite the burner, and after 15 minutes, draw flue gas evenly around the pot at 20~40mm above the bottom of the pot (as shown in Figure 2), measure the CO and CO concentrations in the flue gas, and calculate the CO concentration using formula (3). COa= =
Where: COa-1
CO°CO\(O2/20.9)
1- (02/20.9)
When the excess air coefficient α=1, the carbon oxide content in the dry flue gas, %; the carbon monoxide content in the flue gas sample, %;
The carbon monoxide content in the indoor air, %; the oxygen content in the flue gas sample, %.
The sampler is shown in Figure 3, and the test pot and water addition amount are as specified in Table 3. uu0t~02
Figure 2 Smoke sampling position
-...( 3 )
GB 166911996
H...A M2 : 1
48—1
Uniformly distributed along the circumference
$12×1 copper tube
D-Diameter of the pot at 20~40mm from the bottom of the pot
Figure 3 Annular smoke sampler
Black smoke Ignite the burner for 30 minutes and visually check whether black smoke is produced. j) Contact with yellow flame After igniting the burner, visually check whether the electrode part of the ignition device is often in contact with the yellow flame. 6.7.2 Use status of super-large pot
Use status of super-large pot The test adopts a pot with an inner diameter 60mm larger than the corresponding test pot shown in Table 3. Ignite the burner, open the stopcock to the maximum, and check whether the combustion is stable.
6.8 Temperature rise test
6.8.1 Normal temperature rise
The normal temperature rise test shall be carried out in accordance with the following provisions: a) The test gas cylinder is the same as that in 6.1.2.
The portable stove state complies with the following provisions:
1) Install the portable stove on the temperature measuring plate shown in Figure 4. When a heat shield or a similar plate (hereinafter referred to as a heat shield, etc.) is specified for installation, the test is carried out in the state of the heat shield, etc. under the specified conditions: 2) The portable stove is at the maximum gas consumption and meets 6.6.1c) specified state. Measure the temperature after the burner is ignited and run continuously for 30 minutes. Measure the room temperature at the same time, and the difference between the two is the temperature rise. c)
(wooden wall)
Top surface
GB 16691-1996
Back (wooden wall)
Bottom (wooden table)
0001+H
Height of stove
Thermocouple junction
The material of wooden wall and wooden table should be 5-7 layers of plywood, the surface of wooden table should be painted, and the surface of wooden wall should be painted with non-bright black paint. 1
2 The size of wooden wall and wooden table should be slightly larger than the burning appliance. 3 As many thermocouples (resistors) as possible should be buried to form a mesh. 4 Thermocouples (resistors) should be buried at a depth of 1 mm on the wooden wall and wooden platform. 5 Thermocouples (resistors) should be selected in accordance with GB3772 and GB2903. Figure 4 Temperature measuring board for wooden wall and wooden platform surface
6.8.2 Temperature rise when using an extra-large pot
The temperature rise test when using an extra-large pot is 60 mm larger than the pot diameter of the corresponding test in Table 3, and the test is carried out according to the method in 6.8.1. 6.9 Electric ignition performance test
6.9.1 Test conditions
The test conditions are the same as 6.6.1. When using dry batteries, set the voltage to 70% of the rated voltage. 6.9.2 Test method
Perform according to 10.3 of GB/T16411-1996. 6.10 Gas cylinder internal pressure test
The gas cylinder internal pressure test is to use the test of 6.8.1 and 6.8.2. Remove the gas cylinder and use a pressure gauge to measure the maximum pressure in the gas cylinder. 6.11 Overpressure cut-off device action performance test a) Connect the portable stove to the test device shown in Figure 1, increase the pressure at a rate of 5.0kPa/h, and check the pressure at which the overpressure cut-off device starts to act;
b) After closing the gas line, slowly reduce the pressure and check whether the gas line opens automatically. 6.12 Durability test
6.12.1 Plug valve
After the plug valve is repeatedly opened and closed at a speed of 520 times/min according to the number of times specified in Table 1, check the following items: Use the method of 6.4 to test and check the air tightness of the gas line; a)
Use monthly measurement and operation to check whether the plug valve has any damage that affects its use and whether it can be closed flexibly. 6.12.2 Electric ignition device
The electric ignition device is ignited and extinguished repeatedly at a speed of 5 to 20 times/min as specified in Table 1. Check the following items: a) Check the ignition performance of the ignition device using the method in 6.9; b) Check whether there are any faults that affect the use by visual inspection, operation, etc. 6.12.3 Pressure regulator
Open the air at a pressure of 0.2MPa for 2 to 3s and stop for 2 to 3s as one time. Repeat the operation as specified in Table 1, and then check the following requirements.
In addition, the above test should be repeated using air at a pressure of 0.7MPa. 762
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