离心式压缩机的主要任务是提高气体的压力,它分单级和多级两种。单级离心式压缩机气体经过扩压器排入蜗壳后引向使用地点,气体在叶轮中获得的能量最后可转变为气体的压力能,因而获得了有压力的气体。多级离心式压缩机主要由许多单级组成,每一个单级都包括有叶轮、扩压器、弯道和回流器,第一级有吸入室,末级有蜗壳,都是压缩气体必经之处。 Centrifugal compressor’s main task is to increase the pressure of gas, it is divided into single and multi-level two. The single-stage centrifugal compressor discharges into the volute and then leads to the site of use. The resulting energy in the impeller is finally converted to the pressure energy of the gas, resulting in a pressurized gas. Multistage centrifugal compressors consist mainly of many single stages, each of which includes impellers, diffusers, bends and recirculators. The first stage has a suction chamber and the last stage has a volute, all of which are compressed air After the Department.