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[Student question] Common problems in the use of electromagnetic pulse valve?
[Solution] Common problems in the use of electromagnetic pulse valve:
All valves cannot be opened through phase failure analysis and troubleshooting methods during the installation and commissioning process. However, the pilot component can check whether the airbag pressure is too low, and therefore cannot check for air leakage. Some valves do not work. For other valves, check the piping connections of the valve and the coil replacement fitting. Not all valves can be closed. Underwater valve could not be established due to airbag pressure. Leakage of several valves of the same airbag, causing false images of all valves leaking. Check for leaking angle valves. The air inlet of the electromagnetic pulse valve is opposite to the injection port. Reinstallation of some valves cannot be closed. The valve is leaking. Close slowly, the impurities are adsorbed on the diaphragm, clean the diaphragm, check whether the diaphragm is complete, whether the movable iron core is stuck, check whether the movable iron core and the gas plug diaphragm hole are blocked, and clear the diaphragm hole. During use, some valves leak and the diaphragm Not closed, impurities open normally, adsorbed on the diaphragm, clean the diaphragm, check whether the diaphragm is complete, the coil is heated, burned, the pilot is damaged, the moving iron core is stuck, and the power is turned on for a long time, check whether the moving iron core and air plug are replaced in time, the control system Whether the working state is voltage, but the valve is not working, the diaphragm is damaged or the orifice is blocked. Replace the parts in time. If the ambient temperature of the valve is below -10C, there is an air leak or the valve cannot be opened. If the ambient temperature is too low, the valve will freeze.
The above content is written based on the problems encountered by students in their actual work for reference. Please communicate in a timely manner and correct any problems.
Inspection classification of electromagnetic pulse valve:
Pulse valve refers to a diaphragm valve controlled by an electromagnetic or pneumatic pilot valve. It can open and close the high-pressure gas source and generate a pulse instantly. Electromagnetic pulse valve: refers to a diaphragm valve that is directly controlled by an electric signal in combination with a solenoid valve, a pilot valve and a pulse valve. Therefore, the inspection classification of the electromagnetic pulse valve can be summarized as follows:
1. Before leaving the factory, check the valves one by one in accordance with the technical requirements of Articles 2, 3, 4, and 9.
2. Randomly select 15% (not less than 10) of the ex-factory products every quarter and inspect them in accordance with the provisions of Articles 5 and 8 of the technical requirements. Type inspection shall be carried out under one of the following conditions: a) mass-produced products; changes in production processes and materials used; c) mass-produced valves shall be produced every three years; d) quality inspection agencies have proposed type inspection requirements.
Solenoid pulse valve
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