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各种往复式制冷机运转不正常大概有90％是由以下三个原因引起的: 1)压缩机周期性运转过度;2)压缩机缺油;3)压缩机吸气挟带液体。以上三个原因往往与管道系统和制冷设备的控制方法有关。与管道系统有关的方面主要有以下五点: (1)压缩机在各种不同负荷下的回油; (2)管道系统的压降及其对制冷容量的影响; (3)压缩机停机后制冷剂的流动及其对压缩机可靠性的影响; (4)恰当的制冷剂侧辅助设备和辅助
About 90% of all reciprocating chillers do not operate properly are caused by the following three reasons: 1) The compressor is over-running cyclically; 2) The compressor is short of oil; 3) The compressor sucks air with a liquid. The above three reasons are often related to the control method of piping systems and refrigeration equipment. The following five aspects are related to the piping system: (1) The oil return of the compressor under various loads; (2) The pressure drop of the piping system and its effect on the cooling capacity; (3) After the compressor is stopped Refrigerant flow and its effect on compressor reliability; (4) Proper refrigerant side auxiliary equipment and auxiliary