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屏蔽泵轴承、轴套磨损严重是什么原因?

2024-09-03

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屏蔽泵,输送的是液化气电机温度高、泵振动大、停机检查发现电动机轴承磨损、止推盘、轴套磨损严重。

原因分析:

泵在启动或运行过程中缺液或发生汽蚀,使得轴承缺润滑液或润滑液量不足,造成电机侧轴承润滑不良,轴承与轴套、轴承与止推盘干摩擦造成部件磨损。

另外由于泵内存在气体,泵进出口液体压力产生波动,造成泵振动增加及轴向力脉动,加速了轴承的磨损和脆性断

处理措施:

(1)由于输送的液体介质易汽化,在启泵前应进行充分的冷泵和排气,确保启泵后介质流量稳定、充足,轴承部件能得到良好润滑。

(2)检修泵体时应注意清理干净端盖小孔,防止因小孔堵塞或过流不足造成润滑液无法通过,轴承等部件缺液干摩擦而损坏。

(3)检修时认真检查轴、轴承、轴套、键等处有无损伤、毛刺等缺陷。

(4)定期检查泵入口过滤器,防止因过滤器堵塞造成泵流量不足,产生汽蚀和振动波动。

(5)每次检修时认真清理逆循环管线法兰,避免堵塞。

(来源:化工设备人)

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