CENTRIFUGAL COMPRESSOR

摘要

This centrifugal compressor for compressing a gas-phase or supercritical-phase fluid is provided with: a rotary shaft; an axial flow path which extends along the axial direction of the centrifugal compressor; a radial flow path which communicates with the axial flow path and extends along the radial direction of the centrifugal compressor at the downstream side of the axial flow path; an impeller which is at least partially disposed in the radial flow path and is configured to rotate with the rotary shaft and increase the pressure of the fluid flowing in the radial flow path; and a precompression section which is disposed in the axial flow path at an upstream position away from the front edge of the impeller and is configured to precompress the fluid introduced to the front edge of the impeller.