活塞真空泵工作原理介绍 活塞式真空泵的真空度高吗?

  • Article source:Industry News
  • Website editor:小编
  • Reading volume:
  • Publication time:2022-12-01 11:23:24

一、什么是活塞真空泵

活塞真空泵,又称往复式真空泵,是靠活塞往复运动使泵腔(气缸)的工作容积周期性地变化来抽气的真空泵,多用于真空浸渍、钢水真空处理、真空蒸馏、真空结晶、真空过滤等方面抽除气体。

二、活塞真空泵工作原理介绍

1、活塞真空泵的结构

活塞式真空泵的主要部件是气缸及在其中做往复直线运动的活塞,活塞的驱动由曲柄连杆机构完成,除此之外还有排气阀和吸气阀两个部件。

2、活塞式真空泵的原理

泵运转时,在电动机的驱动下,通过曲柄连杆机构的作用,使气缸内的活塞做往复运动。在往复运动中,由于气缸的左腔体积不断增大,气缸内气体的密度减少,而形成抽气过程,此时容器中的气体经过吸气阀,当活塞达到最右位置时,气缸内就完全充满了气体。

接着活塞从右端向左端运动,此时吸气阀关闭,气缸内的气体随着活塞从右向左运动而逐渐被压缩,当气缸内气体的压强达到或稍大于一个大气压时,排气阀被打开,将气体排到大气中,完成一个工作循环。

如此重复循环工作,直到被抽容内的气体压力达到要求时为止。


三、活塞式真空泵真空度高吗

和其他真空泵相比,活塞式真空泵的真空度并不太高,一般情况下,活塞式真空泵的真空度受到气阀密封性、泵腔内活塞环和泵体的密封性、泵的间隙三个因素的影响,通常不超过95%,即0.05MPa。

Article source:https://www.leynow.com.cn/news/715.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
Hot products 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