| 摘要 |
A centrifugal compressor structure includes two centrifugal compressor stages with impellers (12, 13), diffusers (14, 15) and collectors (16, 17). Between compressor stages is an electric motor, the rotor (22) of which is on a single shaft (11) with compressor stage impellers. A cooling passage duct in the cavity of the body (1) is formed by cooling channels (29) constructed between the stator and the body, and an operating clearance between the stator and the rotor. The first stage collector (16) is connected with the second stage inlet directly through the cavity of the electric motor body. The motor stator is made in the form of laminated magnet wire of a toroidal shape with ring-type winding (24). The rotor (22) is made in the form of electrically isolated from eachother constant magnet assembly of thin rings. |
