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Working principle of anti-surge device in air compressor

Working principle of anti-surge device in air compressor
Nov 09, 2021
Author: DEAR AST

Surge is a common fault of air compressor, so air compressor is equipped with anti surge device.

When the output pressure of the air compressor is fixed and the flow rate is reduced to a certain value, the surge will occur, which is mainly manifested as the pressure fluctuation and obvious vibration. The surge  inevitably affects the working condition of the air separation unit and the service life of the air compressor. In order to prevent the occurrence of surge, it is necessary to control the flow of the air compressor not to enter the surge area, so the function of the anti surge system  automatically opens the vent valve or the bypass valve returning to the inlet to increase the flow of the air compressor when the flow of the air compressor is reduced to a certain safety limit.

 

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