The structure principle and characteristic analysis of screw air compressor

As the main air source for machinery manufacturing, screw air compressors have been widely used in all walks of life. But, do you know the structure principle and main features of Screw Air Compressor?

1. The working cycle of a screw air compressor can be divided into three processes: suction, compression and exhaust. As the rotor rotates, each pair of mutually meshing teeth completes the same work cycle one after another.

2. Compared with ordinary air compressors, screw air compressors have different characteristics and advantages. how to say? Please see the following summary of the suction process, compression process and exhaust process of the screw air compressor.

• Inhalation process: When the rotor rotates, the tooth groove space of the main and auxiliary rotors is turned to the opening of the inlet end wall, and the space is relatively large. At this time, the tooth groove space of the rotor is connected with the free air of the air inlet. The air is sucked into the enclosed cavity composed of the yin and yang rotor and the shell. When the air fills the entire tooth groove, the air inlet end face of the rotor turns away from the air inlet of the casing, and the air between the tooth grooves is closed.
• Compression process: As the rotor rotates, the volume between the teeth decreases continuously due to the meshing of the rotor teeth. The volume occupied by the gas enclosed in the volume between the teeth also decreases, resulting in an increase in pressure, thereby realizing the compression process of the gas. The compression process can continue until the inter-tooth volume is just before communicating with the exhaust port.
• Exhaust process: When the enclosed volume between the teeth is connected to the exhaust port, the compressed gas begins to be discharged. As the volume between the teeth continues to decrease, the compressed gas is completely discharged.