Vacuum pump issues
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This post was last edited by Glowing Lights 75 on 2017-9-28 07:22. In the inlet pipeline of the vacuum pump, namely the section from the flange behind the self-regulating valve to the flange before the gas-liquid separation tank, condensation forms on the pipe wall; this condensation is water. As a beginner, I’m not sure what could cause this phenomenon, so I hope everyone can help answer it. Thank you!
It is caused by the gas temperature inside the pipe being lower than the ambient temperature, which leads to the condensation of moisture in the air; this indicates both a high level of humidity and the effect of the control valve in regulating the flow rate.
It’s a vacuum inside, so of course the boiling point of air drops, and the water vapor there liquefies
The valve throttles, the temperature drops, and the water vapor in the air liquefies!
The valve throttles the flow, the gas does work, its internal energy decreases and its temperature drops; it then absorbs heat from the surrounding air, causing the water vapor in that air to condense.
There is condensate in the separation tank; it’s likely that the temperature of the condensate coming from the condenser is too low.
Where is the vacuum pump? What is the vacuum level?
What is the model number? And which is the manufacturer?
A unified reply: thank you all for your help.
No condensate? So where does the condensate get separated there? Is the separation tank you’re referring to the buffer tank located before the vacuum pump?