Some standard content:
JCS 97.040
National Standard of the People's Republic of China
GB/T 3606-2001
Domestic biogas stove
2001 ~ 11- 12 Issued
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
Implementation on 2002-03-01
GB/T3606--2001
This standard was first issued in 1983. This revision is based on: ① the current status of biogas stove product quality, the development of production technology and the needs of the market and foreign trade; ② to be consistent with GB16410-1996 Household gas stoves). GB/T16411-1996 General test methods for household gas appliances.
The revised standard has made the following important technical changes to the original standard: - Added appearance, low-fire performance, electronic igniter performance, durability and other items and their test methods; - Completed and supplemented the requirements of heat flux plate accuracy, surface irradiance and other items that were missing in the original standard; - Some technical indicators have been adjusted accordingly
- Added sampling and judgment principles to improve the compatibility of inspection and judgment; - The unit of measurement has been changed to the legal measurement unit. From the date of entry into force, this standard will replace GB/T3606-1983. The drafting unit of this standard is: the Quality Supervision and Inspection and Testing Center of Biogas Products and Equipment of the Ministry of Agriculture. The main drafters of this standard are: Zheng Shixuan and Meng Xun. This standard is entrusted to the Quality Supervision and Inspection and Testing Center of Biogas Products and Equipment of the Ministry of Agriculture for interpretation. 1 Scope
National Standard of the People's Republic of China
Domestic biogas stove
This standard specifies the technical requirements for biogas stoves used by manufacturers
The rated value
This standard applies to single burners
2 Referenced standards
The following standards are included and are valid for this purpose. All standards will be revised and used in this document. GB/T 37681 GB 16410 19 GB/T 16411 3 Models and parameters 3.1 Model compilation Acoustics Sound pressure method Domestic gas stoves 3.1.1 Household biogas stoves 3.1.2 The number of stove holes is expressed in numbers.
Quote the market
as the construction
test||, etc.
GB/T 3606-2001
replaces the provisions of GB/T3606-1983
pokcal/h) for household gas stoves
. When this document is approved for publication, the versions shown are all represented by the following
printed phonetic letters B
CD.
3.1.3 Product modification serial number
3.2 Model designation
3.3 Basic design parameters
3.3.1 The rated pressure of the gas before the stove is specified to be 800Pa or 1600Pa. The latest version is preferred.
Pain above the simple method of measuring the surface by envelope 3.3.2 Two-burner stoves should have a main fire, and its rated heat flow should not be less than 2.79kW (240ckcal/hour). 4 Technical requirements
4.1 Appearance
The appearance of the biogas stove should not have obvious scratches or other defects that damage the appearance. 4.2 Air tightness
The air tightness from the gas inlet through the valve to the burner should be less than 0.71./h at a pressure of 4.2kPa, and ignite at 1.5 times the rated pressure, and no leakage to the outside. Approved by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China on November 12, 2001 and implemented on March 1, 2002
4.3 Gas consumption (heat flow)
GB/T 3606—2001
4.3.1 The maximum accuracy of the total rated heat flow of the biogas stove is less than ±10%. 4.3.2 The accuracy of the rated heat flow of a single burner is less than ±10%. 4.3.3 The ratio of the total heat flow to the sum of the heat flows of each burner should reach more than 85%. 4:4 Combustion statewww.bzxz.net
4.4.1 Flame transmission
When one fire hole of the burner is ignited at the rated pressure, the time for the flame to spread to all the fire holes shall not exceed 4$. 4.4.2 Combustion stability
At the rated pressure, the burner flame is uniform, stable, without backfire, flame separation and yellow flame: 4.4.3 Low fire performance
At 4% of the rated pressure (30Pa, 60Pa), the burner flame shall not backfire or go out. 4.5 Thermal efficiency
The thermal efficiency at rated heat flow should be greater than 55%. 4.6 Carbon monoxide concentration in exhaust smoke
When working at rated heat flow, the carbon monoxide concentration in exhaust smoke shall not exceed 0.05%L Excess air coefficient α==1, % (V/V) 4.7 Wind resistance
When there is wind, the burner burns stably and shall not extinguish or backfire. 4.8 Ignition rate and performance of electric igniter
4.8.1 Ignition shall be ignited for more than 8 times out of 10 times, and shall not fail for 2 consecutive times, and there shall be no deflagration. 4.8.2 When the battery voltage is 70% of the rated voltage, it shall not affect the ignition performance of the igniter. 4.9 Surface temperature
The surface temperature of each part of the biogas stove should be less than the following values: a) Parts that can be touched by hands during operation (knobs, etc.): Metal parts room temperature + 25°C Non-metal parts room temperature + 35°C
b) Parts around parts that are not easily touched by hands during operation: room temperature + 105°Cc) Lower battery shell: room temperature + 20°C
d) Hose joint, room temperature + 20°C
e) Valve shell: room temperature + 50°C
f) Electric igniter shell and wire: room temperature + 50°C4.10 Noise
The combustion noise is less than 65dB, and the flameout sound is less than 85dB. 4.11 Performance
4.11.1 After the gas cock is used for 6000 times, it should meet the gas passage airtightness requirements. 4.11.2 After the electric igniter is used for 6000 times, it should meet the ignition performance requirements. 4.12 Structure
4.12.1 The structure of the biogas stove should be stable and reliable, and there should be no tipping or sliding during use. 4.12.2 The gas path of the biogas stove should be tight and leak-proof, the inner and outer surfaces of the burner should be polished and free of burrs, and the ends of the parts that may be touched by hands during use and cleaning should be smooth.
4.12.3 The valves and air regulating plates of the biogas stove should be flexible and easy to operate, and should not loosen freely once positioned. The "open" and "close" of the valve should have obvious Chinese signs and directions.
4.12.4 Each burner should be able to be ignited with a match. 4.12.5 The pot support of the biogas stove should be able to firmly support the service appliance. When a movable support is used, the adjustment should be convenient, flexible and easy to replace. When a net load of 98.1N (10 kgt) is placed on the pot support, it should not be deformed or damaged. When the stove surface is tested for load, the deflection of the center of the stove surface should be less than 5 mm. Single burner stoves do not have this requirement.
4.12.6 The liquid receiving pan should have an appropriate volume to withstand the cooking liquid. The liquid receiving pan with movable connection should be able to be loaded and unloaded without tools. If the liquid receiving pan is integrated with the stove surface, it should be able to be loaded and unloaded with ordinary tools. 4.12.7 The outer surface and interior of the biogas stove should be easy to clean and repair. 4.13 Materials and surface treatment
4.13.1 Material requirements
a) The piano parts of household stoves can be made of cast iron, steel, non-ferrous metals or corrosion-resistant materials, and their material requirements should comply with the relevant national standards in force.
b) The nozzle, nozzle seat and liquid receiving pan should use metal materials with a melting point greater than 500°C. c) The burner and pot bracket should use metals with a melting point greater than 700 Metal materials. d) The gas conduit shall be made of metal materials with a melting point greater than 350°C. e) The wall thickness of the cast product shall not be less than 3mm, and there shall be no obvious defects such as casting pores. The wall thickness of the stainless steel product shall not be less than 0.3mm
4.13.2 Surface treatment
Parts made of cast iron and steel shall be electroplated, sprayed, porcelain or other suitable anti-rust surface treatments. 5. Test method
5.1 Laboratory conditions
Laboratory conditions shall comply with the provisions of GB/T16411. 5.2 Test system
The test system shall be equipped with a biogas container with a volume of not less than 5m3 and a pressure regulating device. During the test, the pressure fluctuation shall be less than ±10 Pa.
5.3 Test biogas
The lower calorific value of the test artificial biogas is specified as <21±1) MJ/m (standard volume). 5.4 Test instruments
Test instruments shall be as specified in Table 1. Before the test, the instruments shall be calibrated. Table 1 Test instruments
Biogas temperature
Surface temperature
Biogas pressure
Atmospheric pressure
Biogas calorific value
Measurement items
Carbon dioxide, carbon dioxide
Instrument name
Wet and dry thermometer
Glass water root hygrometer
Surface thermometer
Glass mercury thermometer
U-type pressure gauge
Animal and plant mercury barometer
Electronic scale
Water flow calorimeter
Gas chromatograph
Chromatograph, infrared instrument or absorption gas analyzer
0'℃~50 ℃
0℃~50℃
O℃250℃
0℃～100℃
1000 Pa
81107 kPa
Accuracy or minimum scale
Biogas flow
Wind resistance
Insulation resistance
5.5 Cooker installation status
The cooker should be installed according to the manufacturer's
5.6 Cooker usage status
5.6.1 The cooker should be installed according to the manufacturer's
5.6.2 The air door shall not be adjusted when the burner is in use
5.6.3 The cooker should be used in a fast state test.
The quantity should be at rated pressure
GB/T 3606-2001
Table (finished)
Instrument name
Thermomagnetic instrument
Wet gas flow meter
Thermosphere breeze meter
Variable speed wind Lang
Sound level meter
Non-ohm meter
Five-stage installation
0~-5m/s
40~-140dB
0~500Mn||tt| |accuracy or minimum scale
weekly adjustment to the best state of the burner flame, and then set the damper, various performance tests 2 specified aluminum pot (lower limit)
test heat
Note: When the burner flow is full
5.7 Test items
5.7.1 Structural appearance inspection
If it does not meet the requirements, it should be in accordance with the requirements of the South
Structure and appearance can be measured by feeling the appropriate
#. Whether the installation position is consistent with the manufacturer's technical products. 5.7.2 Load test
Choice of test pot and water volume
The pots of different diameters are tested separately
Water area.kg
Calculated by insertion method.
The materials and processing dimensions of the appliances and the processing accuracy shall be tested in accordance with the provisions of 6.162.1 of GB16410-1996. 5.7.3 Air tightness test
5.7.3.1 Use 4.2kPa air at the gas inlet of the cooker to test the air tightness of the cooker's true sealing valve. 5.7.3.2 Ignite all burners at 1.5 times the rated pressure, and use a test liquid to test from the burner's rotary valve to the combustion hole. 5.7.4 Gas consumption (heat flow) test 5.7.4.1 The cooker is connected in accordance with the provisions of 5.1 of GB/T16411-1996. Ignite the cooker, adjust the pressure in front of the cooker to the rated pressure, and conduct the test after 15 minutes.
Start the stopwatch and record the reading on the flowmeter at the same time. After more than 3 minutes, stop the stopwatch and record the reading on the flowmeter at the same time. The measured flow is converted into the biogas consumption under standard conditions according to formula (1). V. = 3600V
273. 2.P.+ P,-P.
273. 2 + t
Wherein, V. - biogas consumption per unit time under standard conditions, m/h (101.3 kPa, 0°C); stopwatch reading, s
CB/T3606-2001
V - wet biogas volume measured by flow meter, mt - test gas temperature passing through gas flow meter during test, CP, - atmospheric pressure during test, kPa; P - test gas pressure passing through gas flow meter during test, kPa; P, - pressure of saturated water vapor at temperature t'C, kPa. 5.7.4.2 The heat flow conversion of stoves shall be calculated according to formula (2): $V.XQp
Wherein: - the pressure in front of the stove under standard atmospheric conditions is P. The heat flow rate of the burner at the time of burning is converted into the test heat flow rate, kW, Qn is the lower calorific value of the gas used in the design, MJ/m. 5.7.4.3 The deviation of the heat flow rate of the cooker is calculated according to formula (3): K (%) converted into the test heat flow rate, where: K - heat flow deviation 1 - standard heat flow rate 5.7.5 Combustion state test 5.7.5.1 Flame transmission ignition burner 5.7.5.2 Combustion stability 1.5 times the rated flame: After igniting the burner at the rated pressure, measure whether there is flashback after 15 minutes. 5.7.5.3 For low-heat furnaces without rated pressure, test whether the burner is evenly heated and equipped with tools to see if there is any flashback or extinction of the burner at a pressure of 60F. 5.7.6 Thermal efficiency 5.7.6.1 Test piece Test biogas, rated 5.7.6.2 Test state: a) Test / T16411- b) Test pot pellets free of high pot, pot straightness and water volume maintained in aluminum pot c) Aluminum pot cover must have a small hole, one of which is deep, and another hole is located in the pot disk, its diameter is smaller than the aluminum mirror, at the center, for inserting the temperature, one of the radius is used to pass through the stirrer in the aluminum steel stop, and the stirring level is 30mm, the sky height is 150mm. The virtual surface of the stirrer is evenly divided. (2) (3) to the total hole.
After that, visually observe that there is 30% of the fire hole away from the flame, which is the flame away from the box: under 0.5 rated pressure, when the burner is ignited for a, the burner with a design rated pressure of 1600Pa;
select;
The thermometer should be inserted into the water mixer. The aluminum multi-hole with a thickness of 1 mm is directly in contact with the pot. The handle height is greater than 50% of the area of the aluminum pot. The diameter of each hole in the center of the disk is 40mm. 5.7.6.3 Test method: Test according to the provisions of GN4
91996-614 2) 6-11.1, 36.14..4. 5.7.7 Carbon monoxide content in exhaust gas
After the biogas stove is ignited for 15 minutes, use a ring sampler to take samples around the half height of the test pot. The extraction speed of flue gas is 0.5L/min～1L/min. The carbon monoxide content in the extracted flue gas should be controlled below 14%. The carbon monoxide content in the exhaust gas is calculated according to formula (4): T
Wherein: T=--When the excess air coefficient α is equal to 1, the carbon monoxide content in dry flue gas, %(V/V); T—Carbon monoxide content in dry flue gas, %(V/V); T\—Carbon monoxide content in indoor air, %(V/V); YTOxygen content in flue gas, %(V/V).
(4)
GB/T3606—2001
The ring sampler plus T is in accordance with the provisions of 6.8.1 in GB16410—1996. 5.7.8 Wind resistance test
Ignite the biogas stove at 0.5 times the rated pressure, without placing a pot on the stove, and blow air with a common fan after it burns stably, ensuring that the burner is placed in a uniform wind speed field, and measure its stability under the action of wind with a flow rate of 1m/: when the burner flame is parallel to the stove surface. 5.7.9 Electric igniter performance test
5.7.9.1 The igniter used for the battery should adjust the power supply voltage to 70% of the rated voltage. 5.7.9.2 Under rated pressure, follow the following operating procedures, ignite repeatedly 10 times, and detect the number of ignitions. The operation procedure is to perform several preparatory ignitions in advance. The ignition operation mode and ignition speed are different according to the igniter, and are stipulated as follows: a single-shot piezoelectric igniter is operated once, and the speed is controlled within 0.5 to 1 5 seconds each time; a rotary igniter is rotated once, and its speed is 0.5 to 1 second; a DC power supply continuous discharge igniter is placed in the "ignition" position and stays for 2 seconds as one time. 5.7.10 Surface concentration test
At 1.Ignite the biogas stove at 5 times the rated pressure. After burning for 30 minutes, test the surface temperature of the stove surface, knobs, gas pipe connections, valves, electric igniter shell and wires. 5.7.11 Noise test
5.7.11.1· Combustion noise: Ignite the biogas stove at 1.5 times the rated pressure and measure it at A gear with an ordinary sound level meter at 1m from the front of the stove. The ambient background noise should be less than 40dB, or corrected according to Table 2 in GB/T3768-1996. 5.7.11.2 Flameout noise: Use a sound level meter to test according to the above provisions, read the maximum noise change, and add 5dB to the maximum noise as the test value.
5.7.12 Durability test
5.7.12.1 Plug valve of burning appliance
Use air with the same rated pressure of biogas, when the plug valve is separated from the burning appliance or the plug valve is installed on the burning appliance, open and close the valve at an operating speed of 5 to 20 times per minute, and after 6000 times of testing, conduct an air tightness test. 5.7. 12.2 Electric igniter
Use biogas with rated pressure or air with the same pressure, when the electric igniter is installed on the igniter durability test equipment or on the burning appliance, and operate at a speed of 5 to 20 times per minute, and after 6000 times of testing, conduct an electric ignition performance test. 6 Sampling and inspection
Biogas stoves should be subject to factory inspection and type inspection. 6.1 Factory inspection
6.1.1 The items of factory inspection are 4.1, 4.2.4.4 and 7.1 of this standard.6.1.2 Products can only leave the factory after being inspected and qualified by the quality inspection department of the manufacturer and issued with a certificate of conformity. 6.2 Type inspection
6.2.1 Type inspection should be carried out in any of the following situations: - new products or old products are transferred to the factory for trial production and identification; - after formal production, if there are changes in structure and material that may affect product performance; - normal production cycle for one year;
when the product resumes production after a long-term suspension;
- when the factory inspection results are significantly different from the last type inspection, and the national quality supervision agency proposes a type inspection requirement. 6.2.2 Samples for type inspection are randomly selected from the batch of products that have passed the factory inspection. 6.2.3 The distribution department shall accept and inspect according to the standard. 6.3 Supervision Inspection
6.3.1 Principles for Determination of Defective Products
GB/T3606—2001
a) A stove with one Class A defect is called a Class A defective product; b) A stove with two Class B defects or one Class B and two Class C defects is called a Class B defective product; c) A stove with four Class C defects is called a Class C defective product. 6.3.2 Item Classification and Determination Method
Item classification and determination method are shown in Table 3.
Table 3 Item classification and judgment method
Marking, packaging, transportation, storage
7.1 Marking
Item name
Air tightness
Combustion stability
Carbon monoxide content in exhaust smoke
Thermal efficiency
Gas consumption
Electric igniter performance
Wind resistance
Surface temperature
Load deflection
Durability
Material, surface treatment and structural requirements
Judgment method
No unqualified items allowed
One unqualified item allowed
Three unqualified items allowed
Each stove should be equipped with a nameplate in a conspicuous position, indicating the manufacturer's name, trademark, model, rated pressure, gas heat flow and manufacturing date or code.
7.2 Packaging
The packaging should be safe and firm, and should indicate the factory name, product name, model, product weight, external dimensions, moisture-proof, pressure-proof, etc. The packaging should contain the factory inspection certificate and instruction manual. 7.2.1 Cast iron stoves are packaged with local materials. Stainless steel stoves or porcelain stoves are packaged in cartons. 7.2.2 The instruction manual includes the following contents: installation instructions; ignition, flameout and adjustment methods; safety and maintenance precautions, address and contact information.
7.3 Transportation
Severe squeezing and rain should be avoided during transportation, and rolling and throwing are prohibited during transportation. 7.4 Storage
The product must be stored in a dry, ventilated warehouse without corrosive gases. The storage stacking shall not exceed 2m to prevent crushing and stacking.
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