Only knowing the working principle of twin-screw air compressor can better master the operation and operation of screw air compressor, double screw air compressor work The principle is divided into four steps: inhalation, sealing, compression, and exhaust.
I. Inspiratory process:
The motor drives the rotor. When the gully space of the master-slave rotor is turned to the opening of the inlet end wall, the space is large, and the outside air is filled therein. When the intake side end surface of the rotor is turned away from the air inlet of the casing, the air between the tooth grooves is closed between the main and the slave rotor and the casing to complete the suction process.
Second, sealing process:
During the conveying process, the volume is continuously reduced, the gas is continuously compressed, the pressure is increased, and the temperature is raised. Lubrication that becomes foggy due to the difference in air pressure is injected into the compression chamber to achieve compression, lower temperature sealing and lubrication.
3. Compression process:
After the end of inhalation, the closed volume formed by the main and slave rotor peaks and the casing decreases as the rotor angle changes, and the spiral is pressed. Move, this is "compression process".
4. Exhaust process:
When the closed tooth peak of the rotor rotates to meet the exhaust port of the casing, the compressed air begins to discharge. Until the tooth surface of the tooth peak and the groove is moved to the exhaust end surface, the space of the groove is zero, that is, the exhaust process is completed. At the same time, the other pair of teeth of the master-slave rotor has been rotated to the intake end to form a maximum space, and the inhalation process is started, thereby starting a new compression cycle.