Pulse Valve
These devices are also known as diaphragm valves. They do the job of acting like a switch for compressed air in the cleaning of dusts for the Pulsejet bag filters. Electric signals are used in order to control them. They do the job of cleaning the filter bags one row by one with the help of an instantaneous delivery of compressed air in the bag. This high pressure keeps the resistance of the bag-house in a range ensuring that the device can work properly in ones control. They are composed of an electromagnetic pilot operator, a diaphragm and a valve body. The diaphragm is pressed closely on the outlet of the valve because of the difference in pressure on the two sides of it. This allows the valve to stay closed all the time.
They are composed of an electromagnetic pilot operator, a diaphragm and a valve body. The diaphragm is pressed closely on the outlet of the valve because of the difference in pressure on the two sides of it. This allows the valve to stay closed all the time.
Operation
The device gets activated when an electric signal from the controller energizes the electromagnetic armature. It opens up to discharge the opening of the back cavity. This allows the compressed air that is present in the back cavity to burst out. This happens to relieve the pressure and all the pressurized air that is present in the front cavity. This pushes up the diaphragm opening up the main outlet valve. This causes the opening and blowing up of electromagnetic pulse valves. Upon the disappearance of the signal, the spring begins to work immediately. It does the job of sending the pilot back to where its cycle began at its original position to discharge the opening. The diaphragm further closes the passage with the help of pressure that is present in the front cavity and the spring. This motion causes the pulse valve to stop. The job of the diaphragm is to damp the airflow at the time when the armature is lifting in order to release the pressure. Upon closing the discharge hole, the pressure gas fills into the front cavity for closing up the passage of the diaphragm.
Advantages
They are known to offer precise control for Laser Spectroscopy gas analysis. Some of the benefits of using these devices include:
- High speed,
- Low leak rate,
- High flow, and
- High temperature capability
- They do not corrode or become passive like many other devices
- They are harmless to the environment
- Their response time is less than 10ms. This eliminates any threats of delaying the system.
- The duty cycle is 100% efficient.
- They have very small footprints.
They are available in a variety of orifices and voltages to meet the demands of the consumers.
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