The screw compressor is a kind of positive-displacement compressor, it through gradual decrease the working volume to attain the aim to compressed air.
The working cycle of the screw compressor can be divided into four processes: suction, closure, compression and exhaust.
Dual screw compressor through the meshing of the female and male rotors in the cylinder to form a working volume, with the rotation of the rotor, the size of the working volume changes periodically, to achieve gas compression.
When the screw air compressor works, a large amount of lubricating oil is injected into the cylinder and mixed with the air into the working cycle. The lubricating oil plays a role of lubrication, sealing, cooling and noise reduction in the cycle. The oil separated with the help of oil separator in the oil drum after the gas mixture removed from the air-end. The oil is cooled in the air cooler, filtered through the oil filter, and then into the next cycle.
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