Centrifugal compressor assembly and method

Details Centrifugal compressor assembly and method Centrifugal compressor assembly and method

F - Mech Eng,Light,Heat,Weapons

04

D

F04D 17/12 (2006.01)

Patent

CA 2712842

A centrifugal compressor assembly (24) for compressing refrigerant in a 250- ton capacity or larger chiller system (20), the centrifugal compressor assembly comprising a mixed flow impeller (56, 58) and a vaneless diffuser (112) sized such that a final stage compressor (28) operates with an optimal specific speed range for targeted combinations of head and capacity, while a non-final stage compressor (26) operates above the optimum specific speed of the final stage compressor.

Compresseur centrifuge (24) destiné à comprimer un réfrigérant dans un refroidisseur dune capacité de 250 tonnes ou plus (20), le compresseur centrifuge comprenant une turbine à flux mixte (56, 58) et un diffuseur sans aubes (112) conçu afin quun compresseur d'étage final (28) fonctionne selon une plage de vitesses spécifique optimale pour des combinaisons cibles de hauteur de charge et de capacité, tandis quun compresseur détage non final (26) fonctionne au-dessus de la vitesse spécifique optimale du compresseur détage final.

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