JB/T 5916-1991 Right-angle electromagnetic pulse valve for bag filter JB/T5916-1991 Standard download decompression password: www.bzxz.net

Mechanical Industry Standard of the People's Republic of China
JB/T.5916-91
Technical Conditions for Right-Angle Electromagnetic Pulse Valve for Bag Dust Collector
Published on 1991-12-25
Published by the Ministry of Machinery and Electronics Industry of the People's Republic of China
Implemented on 1992-10-01
Mechanical Industry Standard of the People's Republic of China
Technical Conditions for Right-Angle Electromagnetic Pulse Valve for Bag Dust Collector
1 Subject Content and Scope of Application
JB/T591691Www.bzxZ.net
This standard specifies the terminology, technical requirements, inspection rules, packaging, storage and transportation conditions of right-angle electromagnetic pulse valve for bag dust collector.
This standard applies to right-angle electromagnetic pulse valve for pulse jet bag dust collector, and also to independent right-angle pulse valve. 2 Terms
2.1 Right-angle pulse valve
The valve body inlet and outlet are in right angles. It is controlled by electromagnetic or pneumatic pilot valves to spray compressed air to the filter bag for cleaning.
2.2 Right-angle electromagnetic pulse valve
A diaphragm valve that combines the electromagnetic pilot valve and the right-angle pulse valve and is directly controlled by the output signal of the pulse spraying electronic controller. 2.3 Spray width
The spraying time of the pulse valve opening once.
3 Technical requirements
3.1 Environmental conditions
Environmental temperature -25~+55℃;
Relative humidity of ambient air does not exceed 85%;
No corrosive medium in ambient air;
Gas source medium temperature is 1～50℃.
3.2 Appearance quality
The surface is treated with anti-corrosion, without coating peeling, burrs, scratches and other damages, parts are reliably installed, and the text on the nameplate is clear. 3.3 Gas source pressure and medium
The pressure is 0.4～0.7MPa, and the medium is clean gas that has been degreased and dehydrated. 3.4 Opening voltage
Under the nominal gas source pressure, when the working voltage of the solenoid valve is 85% of the rated voltage, the solenoid pulse valve can be opened. 3.5 Closing gas pressure
When the gas source pressure is not less than 0.3MPa, the pulse width can be closed. 3.6 Blowing width
Under the specified working conditions, the blowing width of the pulse valve can be changed within the range of 0.06～0.4s. 3.7 Pressure resistance
Connect the clean gas with a gas source pressure of 0.8MPa, and there is no leakage. 3.8 Insulation resistance (when the DC voltage is 24V) Approved by the Ministry of Machinery and Electronics Industry on December 25, 1991 and implemented on October 1, 1992
JB/T5916-91
3.8.1 Under the specified environmental conditions, the insulation resistance of the electromagnetic coil to the shell is greater than 1Mn. 3.8.2 Under the conditions of room temperature of 5～35℃ and relative humidity not exceeding 85%, the electromagnetic coil can withstand a voltage of 50Hz, 250V to the shell for 1min without breakdown.
3.9 Anti-vibration performance
When the valve is in normal working state, it should be able to work normally after being subjected to vibration with a frequency of 20Hz and a full amplitude of 2mm for 30 minutes.
3.10 Diaphragm service life
Under normal working conditions, the cumulative service life of the diaphragm should be more than 200,000 times. 4 Inspection rules
4.1 Appearance inspection
4.1.1 The valve surface has no obvious coating peeling, scratches, burrs and other damage. 4.1.2 The nameplate text is clear, and the fasteners are reliably installed and must not be loose or missing. 4.2 Functional inspection
4.2.1 Gas source for functional inspection
Clean air with oil and water removal and adjustable pressure in the range of 0 to 0.8MPa; the volume of the gas tank is not less than 0.5m3. 4.2.2 Opening voltage test
Connect clean air with a gas source pressure of 0.7MPa. When the output control voltage of the electronic controller is 85% of the nominal voltage and the spray width t is 0.03s, the electromagnetic pulse valve opens normally. 4.2.3 Closing pressure test
Connect clean air with a gas source pressure of 0.3MPa, and the pulse valve should be reliably closed. 4.2.4 Blowing width test
Measure the blowing width with a pressure sensor and an oscilloscope. 4.2.5 Pressure resistance performance test
4.2.5.1 For the pressure resistance performance test, use a pressure gauge with a range of 0.1MPa and an accuracy of 1.5. 4.2.5.2 Press in clean air with a gas source pressure of 0.8MPa, and there is no leakage. 4.2.6 Insulation resistance test
4.2.6.1 Use a megohmmeter with a 500V, a range of 0 to 500MQ, and a precision of Class 1 to measure the insulation resistance of the electromagnetic coil to the shell under specified environmental conditions.
4.2.6.2 Under the conditions of room temperature of 5 to 35°C and relative humidity not exceeding 85%, the electromagnetic coil is subjected to a 50Hz, 250V sinusoidal AC voltage to the shell for 1 minute, and there is no breakdown. 4.2.7 Anti-vibration test
Fix the valve on the vibration test bench and withstand vibration with a frequency of 20Hz and a full amplitude of 2mm for 30 minutes. The valve should work normally and the fasteners should not be loose.
4.2.8 Temperature and humidity test
4.2.8.1 Place the valve in an environment with a temperature of 55±2℃, keep it for 60 minutes, and then connect the clean air with a gas source pressure of 0.40.7MPa. Under the condition that the electronic controller has a blowing width t of 0.12s and a blowing interval t of 1min, the valve should work normally after 60 minutes of testing. 4.2.8.2 Place the valve under the conditions in the table below, and connect the clean air with a gas source pressure of 0.4～0.7MPa. Under the condition that the electronic controller has a blowing width t of 0.12s and a blowing interval ta of 1min, the valve should work normally. Article
High temperature and high humidity
Low temperature and high humidity
Relative humidity
Maintain for 60minWork for 60min
JB/T591691
4.2.8.3 Place the valve in an environment with a temperature of -25±2°C. After maintaining for 60min, connect the clean gas with a gas source pressure of 0.4~0.7MPa. Under the conditions that the injection width t of the electronic controller is 0.12s and the injection interval t is 1min, the valve should work normally after the test for 60min. 4.2.9 Diaphragm service life inspection
Continuous operation under the conditions of clean air with a gas source pressure of 0.4-0.7MPa, a jet width t of 0.1s and a jet interval t of 3s of the electronic controller,
4.3 Factory inspection
4.3.1 The factory quality supervision department shall randomly sample 15% of the valves shipped out of the factory (no less than 10, and all of them shall be inspected if less than 10), and conduct the inspection in accordance with the provisions of Articles 4.1, 4.2.1, 4.2.2, 4.2.3 and 4.2.5. 4.3.2 If there are any unqualified products after inspection, double sampling inspection shall be carried out. If there are still unqualified products, all products in this batch shall be reworked and can only be shipped after passing the inspection one by one.
4.4 Type test
4.4.1 Type test shall be conducted in the following cases: a.
First batch of production;
When the production process and materials used change; c.
Valves produced in batches shall be tested once a year. 4.4.2 Sampling method
Randomly select 5% (not less than 3) of the finished products. If there are any unqualified ones, double the sampling test shall be conducted. If there are still unqualified ones, all products in the batch shall be reworked and can only be shipped after passing the test one by one. 4.4.3 Test content
All performance tests shall be conducted in accordance with the provisions of 4.1 and 4.2. 5 Packaging, storage and transportation conditions
5.1 Packaging content
5.1.1 Solenoid pulse valve or pulse valve.
5.1.2 Accompanying documents:
a. Product manual,
b. Product certificate.
5.2 Packaging requirements
Put each valve into a carton, and pack every ten or less cartons into a corrugated box. The outside of the box should be printed with a logo, including: factory name, product name, specifications, quantity and factory date.
5.3 Storage and transportation conditions
5.3.1 The relative humidity of the air in the storage environment should not exceed 85%, the temperature should be within the range of +5~+35℃, and there should be good ventilation conditions. 5.3.2 Avoid moisture, rain, impact, collision and heavy pressure during transportation. Additional remarks:
This standard is jointly proposed by Harbin Environmental Protection Equipment Research Institute and the Occupational Safety and Health Supervision Bureau of the Ministry of Labor. This standard is under the jurisdiction of Harbin Environmental Protection Equipment Research Institute. This standard is drafted by Shanghai Carbon Factory. The main drafter of this standard is Zhu Desheng.
People's Republic of China
Mechanical Industry Standard
Bag Dust Collector
Technical Conditions for Right-angle Electromagnetic Pulse Valve
JB/T591691
Published and distributed by the Mechanical Standardization Research Institute of the Ministry of Machinery and Electronics Industry (P.O. Box 8144, Beijing
Copyright reserved
Postal Code 100081)
No Reproduction
Printing House, Qinghe County, Hebei Province
Book Size 880×1230
Word Count 6000
Sheet 1/2
First Printing in March 1992
First Edition in March 1992
Print Count 00.001-1000
No. 0503
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