旋片式真空泵停泵时返油的改进措施有哪些?

  • Article source:Industry News
  • Website editor:莱诺真空泵
  • Reading volume:
  • Publication time:2022-07-30 11:35:43

如果在停止旋片式真空泵时,有油孔与泵腔相通或排气阀、轴封、泵盖平面、进气管、气镇阀等密封不严。由于液位差的存在和重力作用以及泵腔处于真空状态时油箱与泵腔的压差作用,油就会返入泵腔,油量足够大时,油还会返到进气管道中,造成下次起动时阻力大。旋片真空泵和转子受力大,排气阀受力大,起动困难。影响零部件寿命,降低泵的可靠性。因此,应设法防止停泵返油。旋片式真空泵的原理是,在停泵时切断油路,消除泵腔负压,降低液位差,减少返入油量。

常用的具体措施有:

1.把排气阀附近的油与其余油隔开,油位只略高于隔墙。

2.把油箱和排气阀移在侧面,以降低油位,减少油量。

3.阀座平面要平整,阀片加弹力。

4.轴封河静密封部位要可靠,适时更换。

5.在油孔中加管子,使油位仅略高于进油口。

6.设置止回阀机构,停泵时自动关闭进油孔。

7.设置油泵和辅助机构,停泵时切断油路。

8.泵口装充气阀。

9.装入口容器。

Article source:https://www.leynow.com.cn/news/631.html

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LeyNow Company is a high-tech enterprise that develops, sells vacuum pumps and provides solutions in the vacuum field. It provides users with the most reliable, safe and easy-to-use vacuum equipment products and high-quality professional services to help global customers and partners achieve success. The company's main products include: rotary vane vacuum pumps, screw vacuum pumps, Roots vacuum pumps, piston vacuum pumps, etc.

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