Method of compressor staging for multi-compressor

专利名称：Method of compressor staging for multi-compressor multi-circuited refrigerationsystems

发明人：Craig M. Goshaw,Robert L. Oltman申请号：US08/008917申请日：19930126公开号：US05231846A公开日：19930803

摘要：A method of staging and modulating compressors in a multi- circuitedrefrigeration system including a plurality of condensing heat exchange circuits whereeach condensing heat exchange circuit includes a plurality of compressors. The methodcomprises the steps of: accumulating a first operative condition for each compressor;accumulating a second operative condition for each compressor; determining the statusof each compressor in each circuit and designating therefrom a first list of circuits havingcompressors available to be turned on and a second list of circuits having compressorsavailable to be turned off. The method also comprises the steps of: initiating operation ofthe compressor from the first list with the lowest accumulation of the first operativecondition whenever the system calls for an increase in capacity; terminating operation ofthe compressor from the second list having the greatest accumulation of the secondoperative condition whenever the system calls for a decrease in capacity; determining thenumber of compressors which should be modulating; and modulating, subject to themodulating compressor number determining step, the compressors necessary to meetthe modulating compressor number in accordance with the greatest accumulation of the

second operative condition.

申请人：AMERICAN STANDARD INC.

代理人：William J. Beres,William O'Driscoll,Peter D. Ferguson

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