Centrifugal compressor with pipe diffuser and collector

摘要

A channel diffuser (13) is applied to a centrifugal compressor to obtain substantially complete expansion of the refrigerant downstream of the impeller wheel (12). The relatively large volume of expanded gases that results from such a diffusion process is accommodated by the use of a relatively large volume collecter (14) with a uniform circumferential cross section. The result is higher efficiencies and a more stable operating range.