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    • 8. 发明授权
    • Method of controlling operation of a plurality of compressors
    • 控制多台压缩机运行的方法
    • US4580947A
    • 1986-04-08
    • US689071
    • 1985-01-04
    • Yozo ShibataMitsuji Konishi
    • Yozo ShibataMitsuji Konishi
    • F04B49/06F04B49/02F04C28/00F04C28/06F04D27/00F04B41/06
    • F04B49/022F04C28/00F04C28/02F04C28/065F04D27/02F04C2270/56
    • Disclosed is a method of controlling the operation of a plurality of compressors each having at least one capacity controller capable of changing the discharge rate of the compressor in a stepped manner in such a manner as to provide a total discharge rate just meeting the load demand which varies momentarily. In this method, the control system is divided into a capacity control loop for responding to comparatively small load variance and a compressor control loop for responding to a comparatively large load variance. The capacity control loop is further divided into a sub-loop for capacity controllers of a compressor which has worked longest and which is to be stopped first and a sub-loop for the capacity controllers of other compressors. The unloading operation is commenced preferentially with the sub-loop for the capacity controllers of the compressor to be stopped first, while the on-loading operation is made first with the sub-loop for the capacity controllers of other compressors.
    • 公开了一种控制多个压缩机的操作的方法,每个压缩机具有至少一个能够以分阶段方式改变压缩机的排放速率的容量控制器,以便提供刚满足负载需求的总排放速率, 随时变化 在该方法中,将控制系统分为用于响应相对小的负荷变化的容量控制回路和用于响应相对较大的负荷变化的压缩机控制回路。 容量控制回路进一步分为用于最长时间工作并且首先停止的压缩机的容量控制器的子回路和用于其它压缩机的容量控制器的子回路。 优先通过子回路开始卸载操作,首先停止压缩机的容量控制器,同时首先使用其他压缩机的容量控制器的子回路进行加载操作。