Method and apparatus for applying dual centrifugal compressors t

Details Method and apparatus for applying dual centrifugal compressors t Method and apparatus for applying dual centrifugal compressors t

1997-07-25

1999-03-02

Bennett, Henry

Refrigeration

Processes

Compressing, condensing and evaporating

62175, 62510, F25B 500

Patent

active

058756370

ABSTRACT:
A system and method of applying dual centrifugal compressors to a single evaporator and a single condenser in a refrigeration chiller unit. The condenser is split into two chambers by a divider having the same cross-sectional shape as the condenser and having holes provided through which the tubing provided in the condenser passes. The condenser includes a valve in fluid communication with both chambers of the compressor, for selectively equalizing or separating the pressures within the respective chambers. One or both compressors can be operated, according to the load. An independent condenser pressure can be provided for each centrifugal compressor, and thus the problems encountered by the conventional parallel-compressor refrigeration system can be avoided. With the invention, the refrigeration chiller capacity can be maximized and also adjusted to accommodate variable load requirements.

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