Working principle of screw air compressor

 

The compressed air system uses a twin-screw air compressor. The work of the machine is divided into three processes: intake, compression and exhaust:

(1) Inhalation process:

The motor drives the rotor. When the red groove space of the master and slave rotors turns to the opening of the air intake end wall, the space is large and the outside air is filled in it. The air in the groove is sealed between the main and slave rotors and the casing to complete the suction process. 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 in the tooth groove is immediately absorbed. seal.

(2) Compression process:

 

At the end of the suction, the main and slave rotor tooth crests are closed with the casing. At this time, the gas no longer flows out in the tooth grooves, and its tooth meshing surface gradually moves to the exhaust end. The tooth groove space between the tooth surface and the exhaust port gradually becomes smaller, and the gas in the tooth groove is compressed and the pressure is increased.

(3) Exhaust process:

 

When the toothed end surface of the rotor turns to communicate with the exhaust port of the casing, the compressed gas starts to be discharged until the tooth tip and the tooth.

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