MODULAR CENTRIFUGAL COMPRESSOR WITH AXIAL INPUT AND INTEGRAL ELECTRIC DRIVE Russian patent published in 2018 - IPC F04D25/00 

FIELD: compressor unit.

SUBSTANCE: invention relates to a compressor unit. Modular centrifugal compressor with axial inlet and integrated electric drive comprises electric drive module and compression stage module, combined in external housing and having single rotor made in form of a pipe, on the outer side of which the rotor parts of the electric motor and the supports of the active magnetic bearing system are installed. Rotor at its one end communicates with suction nozzle and other end with the entrance to cantilever impeller of compression stage module, output of which is connected to the output nozzle of the compressor. Inner case of electric drive module is installed in the outer housing with the formation of motor cooling cavity, which is sealed relative to suction and discharge cavities of the compressor.

EFFECT: invention makes it possible to create a modular compressor with a technology that is technologically feasible in manufacture and mounting, which ensures compact assembly of several compressor units with optimal distribution of parameters along compression steps.

4 cl, 4 dwg