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2017-10-02View Original

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[[""Pourrieens,,离心泵叶轮通常有两个密封环,",,"Quelel轮非进口侧的密封环有什么作用?可以取消吗?谢谢!",["你这个叶轮是不是比较大呢,不能取消吧,应该是控制叶轮背面与泵壳的间隙的。",,"Leb口环的作用是平衡轴向力,主要是由于叶轮前后盖板受力面积不同造成的力的方向指向入口!",["b口环间隙过大就会使机械密封前面的密封腔压力增大影响机械密封的正常运行不能取消。".,"不能取消bAPI标准要求不能通过小的轴向间隙来平衡轴向力也就是叶轮后面有背叶片的形式。"b对于单级悬臂泵如果泵的吸入口压力很高时叶轮可能就没有后口环跟平衡孔了"
Reply #22017-10-02
,"这个口环是节流装置介质从这里进入轴封密封腔经节流后压力降低密封腔的压力要小。"
Reply #32017-10-03
,"我觉得可以取消但要在叶轮上加工平衡孔口环是个易损件取消后万一磨了叶轮和泵壳就不划算了"
Reply #42017-10-04
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Reply #52017-10-07
叶轮后边的口环间隙过大就会机械密封前面的密封腔压力增大,影响机械密封的正常运行,不能取消。
Reply #62017-10-09
不能取消。取消后会破坏泵的轴向力!
Reply #72017-10-29
不能取消,API标准要求不能用小的轴向间隙来平衡轴向力(也就是叶轮后面有背叶片的形式)。但是对于单级悬臂泵,如果泵的吸入口压力很高时,叶轮可能就没有后口环跟平衡孔了
Reply #82017-11-24
这个口环是节流装置,介质从这里进入轴封密封腔,经节流后压力降低了,密封腔的压力要小。
Reply #92017-11-26
我觉得可以取消,但要在叶轮上加工平衡孔,口环是个易损件,取消后万一磨了叶轮和泵头就不划算了

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