How to solve the air leakage of the solenoid valve of the pulse bag filter?

Pulse solenoid valve isPulse baghouse

The key components can be called the "heart" of the pulse bag filter, and its performance directly affects the operation of the dust collector. Air leakage is one of the common faults of pulse solenoid valves. Once there is a pulse solenoid valve leakage, the air pressure of the air distribution bag drops rapidly, all the pulse valves of the dust collector cannot work, the operating resistance of the dust collector continues to increase, and the ventilation volume decreases rapidly.

The common causes of air leakage in pulse solenoid valves are as follows:

1. The diaphragm of the pulse solenoid valve is damaged. Close the valve in front of the pulse valve manifold bag, open the pulse valve for inspection, and if the diaphragm is damaged, it must be replaced.

2. There are rust, welding slag and other sundries between the gasket of the diaphragm and the end face of the air outlet, and the two cannot be sealed, resulting in air leakage of the pulse solenoid valve. The pulse valve must be opened to remove debris completely. In the process of installing the pulse bag filter, the compressed air pipeline is ventilated and purged to remove rust, welding slag and other debris, and then the pulse valve and air distribution bag are installed, which can effectively avoid the air leakage of the pulse valve caused by debris blockage.

3. For the flooded pulse valve, if there is a loophole in the blowing pipe in the air bag, it will cause the compressed air to leak directly into the blowing pipe without passing through the pulse valve. Timely repair or replacement of the blow pipe can eliminate the phenomenon of air leakage in the pulse valve.

Hello. The easiest way to deal with this is to replace it. Is there a problem with one broken device or more than one. Multiple problems arise with product quality or over-frequency use. The problem must be found to be the cause.

Bag filter.

Wiring method of pulse valve:

1.Before use, take care to check whether the components are damaged during transportation.

2.Before installation, the debris in the gas supply pipeline should be cleaned by ventilation. Pay attention to the correct direction of gas flow and the correct connection during installation.

3.All O-rings are installed at the time of installation.

Always apply the right lubricant.

4.There are a total of three prongs on the solenoid pulse valve coil and are equipped with special plugs, one of which has" "The symbol is a grounding pin, and the user can decide whether to ground or not according to his needs. (Under normal circumstances, the voltage can not be grounded when the voltage is less than 36V, and it should be grounded when it is greater than 36V.)

The other two are coil power pins, which correspond to the terminals of the pulse jet controller.

It is connected to the terminal of the common wire of the valve. Pay attention to whether the voltage meets the requirements.

5.The air distribution box (including the pipe) of the dust collector is determined by the user, the capacity of the distribution box should meet the air source that provides the electromagnetic pulse valve to work stably, the inner wall of the distribution box should be clean and free of rust and other debris, and the distribution box should have no leakage, and meet the requirements of safety.

6.The applicable temperature of the valve and the seal of the air bag and the injection connecting pipe is -10 70. If you need a high-temperature seal, please specify it separately when ordering.

Pulse valves.

The electromagnetic pulse valve is an important component in the bag filter, which is controlled by the electronic controller for pulse cleaning, but there will be some faults during the operation of the bag filter, which will affect the operation of the equipment.

1) When the electromagnetic pulse valve inputs the electrical signal, the pilot head does not move, the diaphragm does not move, and the valve does not work.

Reason: The moving column of the pilot head is stuck due to the line is not working, the voltage is too low, and the installation is improper.

2) The moving column of the pilot head is stirred in situ, and the pulse valve cannot be sprayed.

Reason: The unloading hole is blocked, the exhaust is not smooth, and the moving column of the pilot head is stuck.

3) The diaphragm beats in place, and the pulse valve cannot be sprayed.

Reason: The moving column of the pilot head is beating, the damping hole of the large diaphragm becomes more worn, and the damping effect becomes smaller; The damping hole of the small diaphragm is blocked, and the unloading and exhaust are not smooth.

4) The electrical signal disappears, and the diaphragm cannot be reset and shut down.

Reason: The damping hole is blocked, the damping effect is too large, and the pressure gas cannot be in place in time; Low static pressure; The unloading hole is not closed in time.

5) The electrical signal disappears, and the diaphragm cannot be reset and closed.

Causes: Damping hole blockage; The unloading hole is not closed. The pilot valve coil heats up and burns off.

6) The diaphragm cannot be opened, and the valve cannot be sprayed.

Reason: Pilot valve is not working; The damping holes and unloading holes of the small diaphragm are blocked.

7) The valve can't be closed, and the air is always ventilated.

Reason: The inlet and outlet directions of the valve are reversed.

Check the causes, the possible causes are:

1. Check whether the wiring of the power supply is good, if not, reconnect it. Whether the power supply voltage is within the working range must be adjusted to the normal working range.

2. Check whether there is a problem with the coil of the solenoid valve, such as desoldering and short circuit, and replace the coil in time.

3. When the bag filter is opened, the electrical signal disappears, and the moving column of the pilot head cannot be reset. There are burrs or impurities, etc., which make the moving column stuck; The springs are tired and the elasticity is insufficient; If the damping hole is blocked, it is necessary to check whether the pressure of the gas bag is too low or the pressure gas cannot pass.

4. Close the valve in front of the pulse valve air bag, remove the pulse valve, see if the diaphragm is damaged, if damaged, replace the new diaphragm in time.

5. Look at whether there are foreign objects on the end face of the gasket and the air outlet of the diaphragm, so that the two cannot be closely combined, resulting in the phenomenon of air leakage of the pulse solenoid valve, which is to open the solenoid valve and remove the foreign matter. When the customer installs the bag filter by himself, in order to avoid the blockage of rust, welding slag and other debris that causes the solenoid valve to not work, he must first ventilate the pipeline of compressed air to remove the debris.

6. Check whether there is any air leakage in the air bag of the blowing pipe, its air leakage will also cause the compressed air to enter the injection pipe directly without passing through the solenoid valve, and the solenoid valve will not work, so we must replace it in time.

7. Check whether the pulse solenoid valve has reached the service life or the frequency of use is too high, which means replacing it with a new product.

How to deal with bag filters, electromagnetic pulse valves, not working? I think that under normal circumstances, if she doesn't work, it means that it has no electricity, and it may be that the machine has not been used for too long, so it is not flexible to use.

How to deal with bag filters, electromagnetic pulse valves, not working? This one should be handled by a professional.

We can't handle it on our own.

The working principle of the electromagnetic pulse valve is to input the coil in the solenoid valve body into the forward pulse signal through the wire, and the working magnetic flux generated by the coil makes the moving core suck and open the valve.

When the forward pulse signal input is stopped, the moving core is released, and the moving core returns to the initial state under the action of spring force, and the closing valve has a self-holding type, which can be maintained after stopping the input of the positive pulse or power-off, and the negative pulse signal needs to be input to reset.

The pulse of the electrical appliance is converted into the pulsation of the machine, so that the powerful energy of the pulsating gas becomes momentum, and the huge impulse is released in a short time, and the interval between the pulses controlled by PLC should be determined according to the recovery time of the rated gas pressure.

Pulse solenoid valve.

Environmental protection policies are becoming more and more stringent, and there are more and more policies to control dust pollution, and the efficient and stable operation of dust removal equipment is very important. 1. Analysis of the causes of filter bag blockage: (1) Air leakage or low flue gas temperature leads to wet bag condensation, pipe leakage and sticky dust.

2) The filtration speed is too large, the dust is too fine or too thick, the dust is sticky, and the filter bag is not clean. Treatment method: (1) The dust collector is insulated or heated, rainproof, and leakage-proof.

2) Before dust removal, the filtration speed should be reduced to control the cooling and spraying volume. 2. Analysis of the causes of filter bag burning: (1) With the inflow of high-temperature particles or charged dust sparks, the filter bag will be burned, resulting in dust leakage.

2) Spontaneous combustion of dust accumulation in the dead corner of the dust collector or in the ash bucket, resulting in the combustion of part of the filter bag or the entire box. Solution: (1) Set up a fire extinguishing device to prevent open flames from entering the dust collector.

2) Reduce the dead angle of the dust collector, release the ash in time, regularly remove the dead corner ash in the dust collector, and leave part of the ash seal to prevent air leakage. 3. Analysis of the causes of filter bag corrosion: damaged by chemical corrosion such as acid and alkali, showing local or overall brittleness, strength decline or ulceration.

Treatment: Detect and control changes in flue gas composition. 4. Analysis of the causes of mechanical damage to the filter bag

1) There are rough and sharp welding marks on the surface of the frame, causing friction and puncture wounds. (2) Improper storage, transportation and installation. (3) The injection pressure is too high and the bag is worn.

Solution: (1) Pay attention to the maintenance of the rack and keep the surface of the fuselage smooth. (2) Properly packed, avoid pressure and folding during storage and transportation, waterproof and sunscreen, installation process, and gently carry and place gently during installation to prevent bumps.

3) Adjust the injection pressure. 5. The analysis of the reasons for the non-dynamic injection of the pulse valve is as follows: (1) The large diaphragm throttle hole is too large or there is trachoma on the diaphragm, and the exhaust hole is partially blocked.

2) The pressure of the air source is too low. Solution: (1) Replace the diaphragm and dredge the exhaust hole.

2) Increase the pressure of the air supply. 6. Analysis of the reasons why the solenoid valve does not move or leaks: (1) The coil is damaged, the circuit is broken, the contact is poor, and the controller has no signal.

2) The diaphragm is damaged and deformed, there are impurities on the diaphragm, the diaphragm cannot be reset normally, the spring fails or the exhaust hole is blocked. Solution: (1) Overhaul the coil and circuit.

2) Change the diaphragm spring or rubber parts and clear the exhaust holes. Adjust the injection pressure. 7. If the increase in drag exceeds the normal value, the resistance cannot be reduced after the ash is cleaned.

Cause analysis: (1) The ash cleaning device is faulty and has no ash cleaning effect. (2) The ash cleaning effect is not good.

3) The filtration speed is too fast. Treatment method: (1) Repair the ash cleaning device and deal with the fault.

2) Shorten the ash cleaning time, increase the ash injection time, and increase the ash injection pressure. (3) Find out the cause, deal with it, check for air leakage and blockage.

Hello, I am happy to serve you and give you the following answer: Pulse dust collector Serry Sen will not hold his breath, but there may be a situation of holding his breath. Reason:

1.The filter of the pulse collector may have become clogged, resulting in reduced air flow, resulting in suffocation. 2.

The control system of the pulse collector may malfunction, causing the control system to not function properly, resulting in breath-holding. Workaround:1

Check the filter of the pulse dust collector, and if the filter is found to be blocked, the filter should be cleaned or replaced in time to restore normal air flow. 2.Check the control system of the pulse dust collector, if the control system is found to be faulty, the control system should be repaired or replaced in time to restore the normal control function.

Steps:1Check the filter of the pulse dust collector, and if the filter is found to be blocked, the filter should be cleaned or replaced in time to restore normal air flow.

2.Check the control system of the pulse dust collector, if the control system is found to be faulty, the control system should be repaired or replaced in time to restore the normal control function. 3.

Check the exhaust system of the pulse dust collector, if the exhaust system is found to be faulty, the exhaust system should be repaired or replaced in time to restore the normal exhaust function. 4.If the control system is found to be faulty, the control system should be repaired or replaced in time to restore the normal control function.

Personal Tips:1Regularly inspect the filter, control system, and exhaust system of the pulse collector to ensure the proper operation of the pulse collector.

2.If the pulse dust collector is found to be faulty, the relevant parts should be repaired or replaced in time to ensure the normal operation of the pulse dust collector. 3.

The control system of the pulse collector should be checked regularly to ensure the proper operation of the pulse collector.

Hello, I am happy to serve you and give you the following answers: the pulse dust collector itself will not hold air, but due to its design principle, improper operation or system failure may lead to breath-holding phenomenon, the reasons and solutions are as follows: 1

Clogged filters: Due to the contamination or clogging of the filter, it will affect the normal air circulation of the pulse collector, resulting in breath-holding. Workaround:

Replace the filter with a new one, and clean the filter regularly to ensure the normal use of the filter. 2.Clogged air valve:

Blocked air valves can affect the normal air circulation of the pulse collector, resulting in breath-holding. Solution: Clean the air valve to ensure the normal use of the air valve.

3.Insufficient cylinder: Due to the insufficient capacity of the cylinder, it will affect the normal air circulation of the pulse dust collector, resulting in the phenomenon of holding air.

Solution: Increase the capacity of the air punch cylinder to ensure the normal use of the cylinder. 4.

Damaged cylinder gaskets: Due to damaged cylinder gaskets, it will affect the normal air circulation of the pulse dust collector, resulting in breath-holding. Workaround:

Replace the cylinder gasket with a new one to ensure the normal use of the cylinder. In short, there are many causes and solutions for the air-holding phenomenon of pulse dust collectors, which need to be analyzed according to the actual situation and the most suitable solution should be selected. At the same time, when using pulse dust collectors, regular inspection and maintenance should also be paid attention to to ensure normal operation.