Stator of multistage centrifugal compressor

摘要

A stator of a multistage centrifugal compressor, comprising a casing, stages accommodated therein and made up each of a diaphragm, a vaned diffuser and a return guide vane assembly placed one after another in the direction of flow of the medium being compressed and forming a fluid passage. The stage return guide vane assembly is rigidly fixed on the diaphragm of the next stage. The vaned diffuser of each stage is rigidly connected to the diaphragm and the stage return guide vane assembly, their joint being arranged on a diameter less than the maximum diameter of a fluid passage.