[". 회전식 압축기의 진동 문제,.

2018-06-20View Original

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有一台离心式压缩机，有增速箱，变频电机。介质是三胺工艺混合气。这次检修后开到1500转/分时，非驱动端振动60-70um，驱动端25-30um。2600转/分时驱动、非驱动都是20左右。这是什么原因，求指导。

Reply #22018-06-20

是不是轴瓦间隙太大了。或高速轴安装时。没装到位。

Reply #32018-06-21

你提供的信息太少，首先气体介质的洁净度如何，是否对设备及有腐蚀性、结垢？是否与工艺要求范围内运行？震动的产生属于工艺方面的还是属于机械方面的？这几个方面都应该逐步逐项的确认。

Reply #42018-06-21

振动高的点温度很低吧，轴瓦间隙大了

Reply #52018-06-21

是不是1500是一个临界转数区。

Reply #62018-06-21

震动区间？在某一段频率下，轴振动会变大，噪音增大，跳过这段频率试试，一般频率区间不会太大，就几个频率

Reply #72018-06-21

之前有一台琵乐风力就是这样，大概是32-35频率会震动变大，电流增大，噪音变大，之后我们开压缩机都不调到这个区间，跳过频率之后的运行都正常

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