The intake valve of the screw air compressor is a component that controls the air pressure in the buffer tank. Common intake valves have a rotating disc structure and a reciprocating valve plate mechanism. The disc or valve plate is used to open or close the intake port to control the airflow entering the machine head.
There are two control methods: one is the switch. When the pressure of the buffer tank reaches the upper limit setting value, the intake port is closed. When the pressure drops to the lower limit setting value, the intake port is reopened. The other is that when the air storage tank reaches a certain pressure, the rotating disc slightly closes the intake port under the control of the proportional valve. When the pressure of the air storage tank increases further, the intake port is further reduced. When the pressure of the air storage tank decreases slightly, the intake port will be increased to stabilize the pressure within a certain range. When the pressure does not reach the capacity adjustment pressure, the intake valve disc is fully opened and the intake port is completely opened.
In the case of operation, what are the factors that cause the intake valve of the screw air compressor to be closed, and what are the solutions? Let's discuss it briefly!
1. There is too much water in the control pipeline, and the control pipeline should be maintained every day.
2. The intake valve is working incorrectly; Check the cylinder, valve sleeve and other parts, and replace them if necessary.
3. The air intake valve is stuck; Check the intake valve, valve sleeve, or shaft, and replace them if necessary.
4. The intake valve spring is cracked; Replace the spring
5. The solenoid valve is faulty; Repair or replace as needed, and the wiring condition should be checked before replacement.
6. The reciprocating valve is damaged; Repair or replace.
7. The solenoid valve wire connector is loose; Check and tighten the wire terminal.
These will cause the screw air compressor intake valve to malfunction, and should be handled with caution during production and operation. The intake valve is usually a normally closed valve to prevent a large amount of gas from entering the head during startup and increasing the motor startup current.
There is an intake bypass valve on the intake valve of the screw air compressor, which is used to prevent the formation of a high vacuum in the machine head when the machine is started and idling, affecting the atomization of the lubricating oil.