Circulating dielectric oil cooling system for canned bearings and canned electronics

摘要

A cooling system for a rotating machine, such as a centrifugal compressor. Specifically, the cooling system may be configured to cool radial and axial magnetic bearings in the rotating machine and the bearing control system that controls said bearings. The cooling system includes canned magnetic radial bearings on each end of the rotor and a canned bearing control system. The canned bearings and canned bearing control system may be filled with a dielectric cooling fluid and in fluid communication with each other via sealed conduits. Accordingly, the radial magnetic bearings and the bearing control system may be entirely immersed in the dielectric cooling fluid to regulate heat generation. An axial magnetic bearing may also be canned and fluidly coupled to the cooling system to immerse the axial magnetic bearing in the dielectric cooling fluid.

主权项

1. A cooling system for a rotating machine, comprising:
a first radial bearing housing arranged about a rotor and having a first radial magnetic bearing sealed therein for levitating the rotor; a second radial bearing housing arranged about the rotor and having a second radial magnetic bearing sealed therein for levitating the rotor; a sealed controller can fluidly coupled to the first and second radial bearing housings and having a bearing control system disposed therein; and a coolant within the first and second radial bearing housings and the controller can such that the first and second radial magnetic bearings and the bearing control system are immersed in the coolant.