Screw air compressor inlet valve working principle

The working principle of the intake valve of the screw air compressor is mainly related to the control of the air entering the compression chamber. Here is a detailed explanation of how it works:

the position and structure of the intake valve: The intake valve of the screw air compressor is usually located at the intake port of the compressor and is composed of the valve body and the valve flap. The valve body is responsible for fixing the position of the intake valve, and the disc is responsible for controlling the entry of air.

The working principle of the valve flap: When the screw air compressor stops or the pressure in the compression cavity is low, the intake valve flap will open, allowing fresh air to enter the compressor. When the screw air compressor is working, the air pressure in the compression cavity rises, and the intake valve flap will be closed by the air pressure to prevent air from entering the air inlet. This process is achieved by compressing the working air in the screw air compressor.

Control of the intake valve: The opening and closing of the intake valve is usually realized by the control system of the compressor. When the compressor needs to increase the supply of compressed air, the control system will send a signal to open the intake valve; conversely, when the supply demand of the compressor decreases, the control system will send a signal to close the intake valve.

In general, the intake valve of the screw air compressor adjusts the amount of air entering the compressor by controlling the switch of the valve flap to meet the demand for low-pressure fresh air when the compressor is working, and to prevent the air from flowing back during the compression process. This design helps to ensure the stable operation of the compressor and provide high-quality compressed air.

In addition, the air intake process of the screw air compressor is closely related to the rotation of the rotor. When the tooth groove space of the male and female rotor is transferred to the opening of the inlet end wall, the space is the largest, and the tooth groove space of the rotor communicates with the air inlet. When the gas is exhausted, the gas in the tooth groove is completely discharged, and the tooth groove is in a vacuum state. When turning to the air inlet, the outside air is sucked in and enters the tooth grooves of the male and female rotors along the axial direction. When the gas fills the entire tooth groove, the end face of the rotor inlet side turns away from the casing inlet, and the gas between the tooth grooves is closed.

The above information is for reference only. For specific brands and models of screw air compressors, it is recommended to refer to the manufacturer's operation manual and maintenance guide for the most accurate information.