Working principle of single screw air compressor

The working principle of single screw air compressor can be summarized into the following steps:

intake process: the gas enters the compressor through the intake pipe, and then enters the screw chamber between the main shaft of the compression screw and the screw blade. In this process, the screw blade and the main shaft will form a sealed working chamber, and generate pumping action through rotation. The gas is gradually compressed on the helix of the screw and is pushed forward in the direction of the screw axis.

Compression process: With the rotation of the screw, the gas molecules are gradually squeezed between the screw and the screw groove. In the screw chamber, the air is gradually compressed, and due to the rotation of the screw, the gas is pushed in the direction of the outlet of the screw. In this process, the temperature and pressure of the gas will gradually rise.

Exhaust process: Once the gas is compressed to a preset pressure value, the exhaust valve will open, so that the compressed gas enters the exhaust chamber through the exhaust valve, and finally is discharged outside the machine. Since the size of the exhaust working chamber remains almost constant, the compressed gas cannot be directly returned to the intake side, thereby achieving effective compression and discharge of the gas.

Cooling process: During the compression process, the gas generates heat. In order to ensure the normal operation of the machine, the single screw air compressor needs to dissipate the heat generated in time through the built-in cooling system to keep the machine running at a suitable working temperature and extend the service life of the equipment.

The single screw air compressor realizes the continuous compression and supply of gas through the continuous rotation of its single screw blade. This kind of compressor has been widely used in industrial production, especially in the fields of gas supply, pneumatic tools and gas source equipment, because of its simple structure, stable operation, low noise and strong wear resistance.