Vacuum pump is a kind of oil-sealed vacuum equipment, but in the long-term use process there will be oil return, specifically refers to the oil vapor is affected by temperature and attached to the original chip, which will not only cause waste of resources, but also cause heat is not easy to emit, equipment temperature rise too fast, and so on.
In order to prevent the vacuum pump oil from returning to the pumped container when the pump stops, the built-in anti-return device is very important. When using vacuum pump, many users will encounter the problem of oil return in vacuum pipeline or system. Today, Xiaobian will introduce the reasons and treatment methods of vacuum pump oil return.
1. Reasons for oil return: oil vapor reflux to vacuum pipeline or system; oil vapor pressure is not right; oil reflux when pump stops; seal damage on shutoff valve plate; corrosion or damage of bottom seal of pumping pipeline.
2. Specific treatment methods: after cleaning the pump, change the oil that meets the requirements; after cleaning the pump, change the oil that meets the requirements; check and replace the shutoff valve; replace the shutoff valve plate; replace the exhaust pipeline, repair the seals.
Avoiding oil return during the use of vacuum pumps can improve the safety, stability and efficiency of equipment operation, bring better benefits to enterprises, and also avoid the burning of lines caused by excessive temperature, or even fire.
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