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  • 哪些原因会导致水泵机械密封漏水?
  • 本站编辑:江氏名品水泵发布日期:2018-08-24 15:23 浏览次数:
凯泉WQ潜水排污泵
 
水泵机械密封也称端面密封,其有一对垂直于旋转轴线的端面,该端面在流体压力及补偿机械外弹力的作用下, 依赖辅助密封的配合与另一端保持贴合,并相对滑动, 从而防止流体泄漏。一般水泵机械密封漏水可能会存在以下几种原因。
Mechanical seal of pump is also called end face seal. It has a pair of end faces perpendicular to the axis of rotation. Under the action of fluid pressure and compensating mechanical external elastic force, the end faces depend on the cooperation of auxiliary seal to keep fit with the other end and relative sliding, thus preventing fluid leakage. General water pump mechanical seal leakage may exist for the following reasons.
1、试运行时没有先向泵内灌满水或由外供水没有先往机封供水就开泵运行,或使用过程中缺水运行。
1. The pump is operated without filling the pump first, or with water supplied from outside without sealing the pump first, or with water shortage during operation.
检查方法:拆泵检查。观察检查机械密封损坏情况。
Inspection method: remove pump inspection. Observe and check the damage of mechanical seal.
状态特征:机械密封的动环或静环有裂纹或橡胶密封件有熔的迹象。
State characteristics: there are cracks in the moving rings or static rings of mechanical seals, or signs of melting of rubber seals.
处理方法:更换机械密封,培养正确的操作方法。
Treatment: replace mechanical seals and cultivate correct operation methods.
2、机封安装过紧或过松
2, the machine seal is too tight or too loose.
检查方法:拆泵检查,观察检查机械密封损坏情况。
Inspection method: remove pump inspection and observe mechanical seal damage.
状态特征:机封的动、静环两配合的磨损面有部分磨花或磨痕(只有半圆的部分)或有污物把两摩擦面划一些线条(圆周)。一般开泵即漏若只是调试运行,可能动、静两环的两摩擦面没有磨花和划痕。检查主轴窜动大。
State Features: The wear surfaces of the dynamic and static rings of the machine seals have partial grinding or wear marks (only the semi-circular part) or some lines (circles) drawn by dirt on the two friction surfaces. Generally speaking, if the pump is opened or leaked, the friction surfaces of the two rings may not be worn or scratched. Check spindle movement.
处理方法:检查机封的动、静环,若无磨花、划痕,可重新安装调正。如果机封的动、静环已经磨花或有划痕,更换新的机封。检查轴套的长度是否符合要求,或机封的波级管或O型圈等密封件是否过松,过大,不合规格。检查主轴窜动大的原因。轴承损坏,更换轴承;轴承压盖、悬架、主轴等有关尺寸有误差,更换尺寸有差的零件。
Processing method: check the dynamic and static ring of the machine. If there is no friction and scratches, it can be adjusted again. If the dynamic and static ring of the machine has been worn or scratched, replace the new machine seal. Check whether the length of the sleeve meets the requirements, or whether the seals such as the wave tube or O-ring of the seal are too loose, too large, and not up to specifications. Check the cause of spindle movement. Bearing damage, replacement bearing; bearing cover, suspension, spindle and other related dimensions errors, replacement of parts with poor size.
3、液体中含有颗粒
3. Liquid contains particles.
检查方法:了解液体情况(有无含杂物泥沙等)。拆泵检查,观察检查机械密封损坏情况。
Inspection methods: understand the liquid condition (including silt, etc.). Check the pump and observe the damage of the mechanical seal.
状态特征:泵机封腔内有杂物,或者泥沙或者焊渣等。机封损坏(液体管损坏或静环、动环摩擦面磨损)。
State characteristics: there are debris in pump chamber, or sediment or slag. Mechanical seal damage (liquid pipe damage or static ring, ring friction surface wear).
处理方法:泵腔及密封腔内有杂物,焊渣或泥沙等,会造成机封损坏,必须更换机封。
Processing methods: Pump cavity and sealing cavity with impurities, welding slag or sediment, etc., will cause damage to the seal, the seal must be replaced.
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