Centrifugal compressor and washing method

摘要

The centrifugal compressor is provided with a casing, a rotating shaft which is supported inside the casing, an impeller which is arranged on the rotating shaft and rotates to compress a fluid, and a washing liquid injection device which injects a washing liquid into a flow path formed by the impeller and the casing. The washing liquid injection device is provided with a plurality of nozzles which are arranged along a circumferential direction of the rotating shaft to inject the washing liquid into the flow path and a plurality of chambers which communicate with each corresponding nozzle among the plurality of nozzles and supply the washing liquid to the corresponding nozzle.

主权项

1. A centrifugal compressor comprising:
a casing; a rotating shaft which is supported inside the casing; an impeller which is arranged on the rotating shaft and rotates to compress a fluid; and a washing liquid injection device which injects a washing liquid into a flow path formed by the impeller and the casing; and a plurality of flow regulating valves, wherein the washing liquid injection device is provided with a plurality of nozzles which are arranged along a circumferential direction of the rotating shaft to inject the washing liquid into the flow path, each of the nozzles communicates with one of a plurality of chambers which supplies the washing liquid to that nozzle, and each of the flow regulating valves controls a flow rate of the washing liquid supplied to one of the chambers, the flow regulating valves being located upstream on sides of the chambers opposite to where the nozzles are located.