DEVICE FOR CIRCULATING SEALING GAS OF MECHANICAL DRY SEAL OF CENTRIFUGAL COMPRESSOR WHEN CENTRIFUGAL COMPRESSOR STAND STILL AND IS PRESSURIZED

摘要

PROBLEM TO BE SOLVED: To provide a device for circulating a sealing gas of a mechanical dry seal of a centrifugal compressor capable of operating when the centrifugal compressor stands still and is pressurized.

SOLUTION: The device 10 for circulating the sealing gas of the mechanical dry seal 11 of the centrifugal compressor 13 when the centrifugal compressor 13 stands still and is pressurized is provided. The device 10 has a sealed reciprocating compressor 12, the reciprocating compressor 12 includes a piston which is slidable in a cylinder, and the piston is moved with magnetic coupling to an external magnetic element moved along the cylinder.

COPYRIGHT: (C)2011,JPO&INPIT