CENTRIFUGAL COMPRESSOR AND CENTRIFUGAL UNIT, EQUIPPED THEREWITH Russian patent published in 2018 - IPC F04D29/46 

FIELD: machine building.

SUBSTANCE: description of the invention discloses a centrifugal compressor. Centrifugal compressor, containing several stages of compressor plants, which are connected in series. Each stage of the compressor unit comprises diffusion cavity (1) and a diffusion cavity adjustment device, the adjusting device comprising movable element (21) configured to vary the flow area of diffusion cavity (1) provided in accordance therewith, wherein movable member (21) is movably provided in the axial direction of the centrifugal compressor. Centrifugal installation containing a centrifugal compressor is also disclosed. Movable element of each stage of the compressor unit of the centrifugal compressor changes the flow area of the diffusion cavity of the given stage of the compressor unit, thereby effectively reducing the surge capability.

EFFECT: centrifugal compressor and a centrifugal unit equipped with the same centrifugal compressor have been proposed.

14 cl, 3 dwg