CENTRIFUGAL COMPRESSOR WITH SURGE CONTROL

摘要

A centrifugal compressor for a chiller includes a casing, an inlet guide vane, an impeller downstream of the inlet guide vane, a motor and a diffuser. The casing has inlet and outlet portions with the inlet guide vane disposed in the inlet portion. The impeller is rotatable about a rotation axis defining an axial direction, and the impeller is adjustably mounted within the casing along the axial direction between at least a first flow rate position and a second flow rate position. The motor rotates the impeller. The diffuser is disposed in the outlet portion downstream from the impeller with a outlet port of the outlet portion being disposed between the impeller and the diffuser.

主权项

1. A centrifugal compressor adapted to be used in a chiller, the centrifugal compressor comprising:
a casing having an inlet portion and an outlet portion; an inlet guide vane disposed in the inlet portion; an impeller disposed downstream of the inlet guide vane, the impeller being rotatable about a rotation axis defining an axial direction, and the impeller being adjustably mounted within the casing along the axial direction between at least a first flow rate position and a second flow rate position; a motor arranged and configured to rotate the impeller; and a diffuser disposed in the outlet portion downstream from the impeller with an outlet port of the outlet portion being disposed between the impeller and the diffuser.