泵用机械密封的基本原理

  • Article source:Industry News
  • Website editor:莱诺真空泵
  • Reading volume:
  • Publication time:2021-01-21 08:50:41

  由于泵内流体和泵外大气间存在着压差,为了防止浆体外泄,因此泵在运行时需设密封装置,称其为轴封。常用的轴封种类有:填料密封、机械密封、动力密封以及浮动密封等形式。从目前各行业用泵情况看,机械密封已经成为各行业通用的密封形式,并且该密封形式运行平稳,可靠,给各行业带来很大的经济效益。

机械密封的基本原理

  机械密封是由两块密封元件(静环和动环)垂直于轴的光滑而平直的表面相互贴合,并做相对转动而构成的密封装置,如图1所示。它是靠弹性构件(如弹簧6)和密封介质的压力在旋转的动环和静环的接触面(端面)上产生适当的压紧力,使这两个端面紧密贴合。

机械密封

图1 单端面无水机械密封示意图

1、动环 2、静环 3、防转销 4、螺钉 5、弹簧座 6、弹簧 7、间隔套 8、螺栓 9、后铲板 10、密封圈

  端面间维持一层极薄的液体膜而达到密封的目的,这层液体膜具有流体动压力与静压力。起着润滑与密封的作用。渣浆泵、脱硫泵等产品在不同工况均可采用机械密封。

Article source:https://www.leynow.com.cn/news/467.html

Disclaimer: If the article needs to be reprinted, please indicate the source. Some articles and pictures on this site come from online editors. If there are any copyright issues, please communicate and resolve them in time.

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.

Up to date Industry News

Leynow public account

Troubleshooting solutions

Related information Mome
Do you have any questions about vacuum pump systems and solutions

Please fill in the required information carefully and we will contact you within 24 hours