I would like to ask what the difference and relationship are between the terms \"unloading\" and \"surge\" in turbine-type centrifugal air compressors
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This post was last edited by yishengsuoai23 on 2016-9-19 22:10. As the title says, thank you
Simply put, it cannot be uninstalled; when the gas cannot escape, surge occurs. Another reason is that operation at high flow rates and low pressures makes surge more likely. Put simply, it means the gas is trapped inside and can’t get out.
Compressor surge is mainly caused by the outlet pressure being lower than the pipeline pressure, which prevents the medium from flowing out. There are three reasons for this situation: 1. The density of the medium decreases. 2. The unit speed is too low. 3. Excessive back pressure.
Unloading and surge are two completely different concepts; surge is a flow oscillation caused by too low a flow rate in the compressor or an obstruction at the outlet. As for any connection between them, when surge is about to occur, it is often prevented by opening an anti-surge valve to allow backflow, which is similar to unloading.