HG/T 2061-1991 Air filter for rubber machinery HG/T2061-1991 Standard download decompression password: www.bzxz.net

Chemical Industry Standard of the People's Republic of China
HG/T2061-91
Air filter for rubber machinery
Published on July 6, 1991
Ministry of Chemical Industry of the People's Republic of China
Implementation on January 1, 1992
Chemical Industry Standard of the People's Republic of China
Air filter for rubber machinery
Subject content and scope of application
HG/T2061-91
This standard specifies the basic parameters, technical requirements, test methods and inspection rules of air filters for rubber machinery (hereinafter referred to as filters).
This standard applies to air filters for rubber machinery. 2 Reference standards
GB191 Pictorial symbol for packaging, storage and transportation
GB6388 Marking for receiving and delivering transport packaging
HG5-1543 General technical conditions for rubber machinery packagingJB8 Product label
Basic parameters
The basic parameters of the filter shall comply with the provisions of Table 1, Table
Nominal diameter, mm
Nominal pressure, MPa
Filter element pore diameter, um
Thread connection size, mm
4 Technical requirements
4.1 Working conditions
4.1.1 Working medium: clean and free of obvious impurities Compressed air, 4.1.2 Ambient and medium temperature: 5~60℃, 4.1.3 Inlet pressure: 0.25~2.50MPa.4.2 Sealing
The filter should not have bubbles for 1min under nominal pressure.4.3 Pressure resistance
When the filter is subjected to a pressure resistance test of not less than 1min at 1.5 times the nominal pressure, the parts and components shall not be damaged and
permanently deformed:
4.4 Pressure drop-air flow
When the pressure drop is 5% of the inlet pressure, the measured air flow value shall not be less than the provisions in Table 2. Approved by the Ministry of Chemical Industry of the People's Republic of China on July 6, 1991 and implemented on January 1, 1992
Inlet pressure, MPa
Air flow, L/min
Note: 8700 in Table 2 is the reference flow value.
4.5 The water separation efficiency of the filter should not be less than 80% HG/T2061-91
4.6 The filter should have a flexible drainage device. When the drainage valve is closed, there should be no water leakage or air leakage. When it is opened, the accumulated water should be discharged smoothly.
4.7 The color of the plating and coating on the outer surface of the filter should be uniform, smooth and flat, without defects such as peeling and scratches, and the fasteners should not be loose.
5 Test method
5.1 Test conditions
Test medium: clean and dry compressed air, the diameter of the solid particles contained is not more than 75um. a:
Test medium temperature: 15~35℃;
Test medium pressure: should comply with the provisions of Table 3, Table 3
Rated value, MPa
Allowable fluctuation value
Test environment temperature: 15~35℃,
Test environment relative humidity: not more than 90%; 0.25~2.50
Test instrument and meter accuracy: pressure gauge not less than 0.4 level; flow meter not less than 2.5 level; thermometer (meter) is ordinary 5.2 Sealing test
Close the outlet of the filter, input the nominal pressure from the inlet, put it in water for 1 minute, its sealing The sealing performance shall comply with the provisions of Article 4.2.
5.3 Pressure resistance test
Close the outlet of the filter, input 1.5 times the nominal pressure from the inlet, and maintain the pressure for 1 minute. The pressure resistance shall comply with the provisions of Article 4.3. 5.4 Pressure drop-air flow test
The pressure drop-air flow test principle and pressure port structure of the filter shall be as specified in Figures 1 and 2. When the inlet pressure is stabilized at the corresponding specified values, adjust the throttle to gradually increase the flow. When the pressure difference shown on the differential pressure gauge is 5% of the inlet pressure, measure the air flow at each outlet pressure respectively. Repeat three times and take the average value. This value shall comply with the provisions of Article 4.4.
5.5 Water-dividing efficiency test
HG/T2061--91bZxz.net
Figure 1 Schematic diagram of pressure drop-air flow test Air source; 2-switch; 3, 9 flowmeter; 4-tested filter; 5, 7-pressure gauge; 6-differential pressure gauge: 8-throttle valve pressure port structure diagram
The principle of water-dividing efficiency test is as specified in Figure 3.
Figure 3 Schematic diagram of water-dividing efficiency test
Air source; '2-pressure reducing valve; 3, 6-pressure gauge; 4-supply Water device; 5 Tested air filter; 7—Throttle valve: 8 Flow meter Test steps are as follows
Set the filter inlet pressure to 0.63MPa and the outlet pressure to 0.62MPa8
HG/T2061-91
Uniformly supply water at a ratio of 30mL of free water per cubic meter of air; b.
Input the air with the above water content into the filter for 3 minutes, and then drain the water; C.
d. After inputting the water-containing air for 3 minutes, measure the water supply (the time is determined by the effective volume of the water storage cup), measure the water supply and separation water volume respectively, and calculate the water separation efficiency:
Water separation efficiency Separation water volume
Water supply volume
Repeat three times, and the average value should meet the requirements of Article 4.5. 5.6 Drainage performance test
×100%
Put clean water in the drainage cup and seal the outlet of the filter. After inputting 2.50MPa compressed air from the inlet, observe the drainage device and switch performance, which should comply with the provisions of Article 4.6.5.7 Appearance inspection
The appearance should comply with the provisions of Article 4.7 by visual inspection. 6 Inspection rules
6.1 Each filter must be inspected before leaving the factory. 6.2 Each filter must be inspected and qualified by the quality inspection department of the manufacturer before leaving the factory, and a product quality certificate should be attached when leaving the factory. 6.3 The factory inspection and type inspection of the filter shall be carried out in accordance with the technical requirements and test methods specified in Table 4. Table 4
Sealing
Drainage performance
Pressure resistance
Pressure drop
Water separation efficiency
Air flow
Note: Items marked with "public\" are items that need to be inspected. 6.4 Type inspection shall be carried out in any of the following situations: a.
Technical requirements
Trial and final product identification for new products or old products for wider production; when the product has major changes in structure, materials and process; when the product resumes production after a long period of suspension (more than two years); c.
Test method
d. In normal production, when the cumulative output is more than 50 units, at least 3 units shall be sampled for inspection before delivery
Type inspection
6.5 When there are unqualified items in the random inspection, the item shall be doubled for inspection. If there are still unqualified ones, the batch of products shall be inspected for this item one by one.
7 Marking, packaging, purchase and storage
7.1 Each product shall be fixed with a product label in an appropriate and obvious position. Its type: size and technical requirements shall comply with the provisions of JB8.
7.2 The basic content of the product label shall include: 4
Manufacturer name or trademark;
Product name and model:
Nominal diameter;
|Nominal pressure;
Filter element pore diameter;
Air (or medium) flow direction;
Thread size mark of the pipe;
Manufacturing date and factory number
HG/T2061-91
Product packaging should comply with the provisions of HG5-1543, and the inlet and outlet of the filter should be closed. 7.3
Product packaging and transportation marks should comply with the provisions of GB191 and GB6388, 7.4
Filters should be stored in ventilated and dry warehouses. Additional notes:
This standard is proposed by China National Chemical Equipment Corporation. This standard is under the jurisdiction of the Rubber Machinery Subcommittee of the National Rubber and Plastic Machinery Standardization Technical Committee. This standard is drafted by the Beijing Rubber Industry Research and Design Institute of the Ministry of Chemical Industry. The main drafters of this standard are Pan Yanying and Liang Dingqiu. People's Republic of China
Chemical Industry Standards
Air Filters for Rubber Machinery
HG/T2061 -91
Editor: Chemical Industry Standards Editorial Department
(Standardization Research Institute of the Ministry of Chemical Industry)
Postal Code: 100013
Printer: Standardization Research Institute of the Ministry of Chemical Industry
Copyright reserved. No reproduction allowed
Format: 880×12301/16 Number of words on a sheet: 9000 First edition in September 1992
First printing in October 1992
Print run: 1-500
161900
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