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一、问题的提出在两级压缩机出厂试验检查时,常会遇到这种情况:压缩机各部件符合图纸要求,技术经济参数均达到了设计指标,试验情况良好;但在试验负荷调节器时,在规定关闭压力工况下,关闭一级减荷阀停止对一级缸供气,此时,瞬时一级压力表指针理应复零,而实际上却有一定余压,一般在0.2～0.69bar范围内。因此,检验人员则认为该压缩机不合格,要求查找原因。往往经多方查找,都难以找出原因,造成检验与生产之间的矛盾。为了探讨一级表压不复零位的真正原因,消除扯皮,本文
First, the problem raised Two compressor inspection factory inspection, often encounter this situation: Compressor parts meet the drawings, technical and economic parameters have reached the design specifications, the test is good; but in the test load regulator , The provisions of the closing pressure conditions, the closure of a load valve to stop the supply of a cylinder, this time, the instantaneous level gauge pointer should be reset zero, but in fact there is a certain residual pressure, generally 0.2 ~ 0.69 bar range. Therefore, the inspector believes that the compressor failed to find the cause. Often through multiple search, are difficult to find out the reasons, resulting in the contradiction between inspection and production. In order to explore the real reason for a zero gauge zero elimination, this article