["Valvendeschung Ursachen",,"Dieser Beitrag wurde zuletzt von 催化一粟 am. 228-5-

2018-05-20View Original

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本帖最后由催化一粟于 2018-5-20 23:09 编辑车间有一台减压阀，阀前压力8兆帕阀后压力0.8兆帕，流量振动15方左右，领导说是阀门前后压差大所引起的，阀门前后压差大为什么会引起阀门振动呢？

Reply #22018-05-20

前后阀门不平衡力增大，引起气流冲击；如果气体里面有氧的话还容易产生气蚀

Reply #32018-05-21

这种工况需要用多级套筒或迷宫阀来减压

Reply #42018-05-22

流量振动15m3/h，就是说流量计显示波动比较大，有15m3/h的波动对吧。

Reply #52018-05-22

阀前阀后压差大，导致介质经过内件时，尤其是阀芯时，产生不平衡力，

Reply #62018-05-23

阀门前后压差大产生的不平衡力来源是流体经过阀芯处流速增加，湍流程度大，导致阀芯下面的压力波动大，所产生的不平衡力吗？

Reply #72018-05-23

阀门前后产生的不平衡力，是怎样产生的呢，

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