With the continuous improvement of the bag filter technology in China, especially the update of the ash cleaning system technology and the continuous optimization of the production process, the application of the dust collector has become more and more widespread. Among them, the common problem in the dust collector is the pulse valve. Leakage, so what are the reasons for pulse valve leakage?
What are the reasons for the leakage of the electromagnetic pulse valve ?
With the continuous improvement of bag filter technology in China, especially the update of ash cleaning system technology and the continuous optimization of production process, the application of dust collectors has become more and more widely. Among them, _common problems_ are pulse valves Leakage, what are the reasons for the leakage of the pulse valve ?
1. The diaphragm of the electromagnetic pulse valve is damaged.
Generally, there is dirt in the valve, or the spring diaphragm is not functioning or damaged. Check whether the coil is short-circuited or there is a bad power contact. You can open the pulse valve to clean the diaphragm and replace the spring and diaphragm. At this time, all the pulse valves of the dust collector are not working, the air bag pressure is rapidly reduced to zero, the cylinder is closed, the pressure difference of the dust collector continues to increase, and the ventilation volume is rapidly reduced;
2. The air pressure balance hole of the electromagnetic pulse valve is blocked.
If the piston is stuck, loosen one or two wires from the four screws that connect the pulse valve seat to the air bag. Otherwise, the quality of the gas source is not enough.
3. Compressed air contains more oil and water; foreign bodies such as rust and welding slag in the pipeline have not been cleaned up when installing the compressed air pipeline.
4. If the compressed air contains more oil stains and water, it will easily cause water accumulation in the cylinder, leakage of the pulse valve, reduction in the overpressure of the pneumatic triplet, and non-operation of the two-position five-way valve of the cylinder.
Therefore, the quality of compressed air is the key to the stable operation of the air box pulse dust collector. To deal with this problem, install a refrigerated gas dryer at the air compressor outlet, or install a gas filter with replaceable filter elements at the inlet of the dust collector air tank, periodically discharge water and check the pressure difference of the gas filter. When the pressure loss reaches Replace the filter element at 0.1 ~ 0.15Mpa.
Pulse valve is a type of valve that relies on the delay of air flow and air volume to make the input long signal become a pulse signal. If it is operated and used according to the specifications of _, its life can reach five years. Let's take a look at the fault repair of the pulse valve.
The spring is damaged and can be replaced. The rubber pad is damaged and can be replaced. Spool dirt can be cleaning the spool. The diaphragm is damaged and can be replaced. Throttle holes are blocked or damaged, which can be cleaning throttle holes; throttle holes are damaged or missing, and the throttle holes can be replaced.