The water ring vacuum pump is very noisy
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The company has a water ring vacuum pump; after operating for some time, it produces a loud noise. When the exhaust valve on the air intake tank is slightly opened, the noise gradually decreases. Soft water is used as the sealing fluid for water ring pumps, while tap water is used as the cooling water for Roots pumps. Is this the sound of cavitation? And if so, how can it be resolved? Thank you all!
Water ring vacuum pump inlet pressure -0.096 Mpa
A water ring vacuum pump should have a switch specifically for this purpose.
It should be cavitation. It is essential to ensure vacuum operation
1. What is the temperature of the circulating water? 2. Is it possible to determine the vacuum level in the upstream system? High temperatures and high vacuum levels increase the likelihood of cavitation. Opening the exhaust valve on the intake tank slightly reduces the vacuum level. Personally, I think you have chosen a vacuum pump with too high a capacity.
It is related to the temperature of the working fluid; an increase in the working fluid temperature occurs due to high temperatures elsewhere, which leads to cavitation. Also, has the pump developed scaling?
It should be cavitation; lower the temperature of the cooling water
There’s a spray line, right? Just open it a little bit.
Lower the water temperature or open the exhaust valve slightly to bring it within the process requirements immediately.
Check whether there is any material blockage in the inlet pipeline and the impeller inside the vacuum pump; clean it out. Make sure that the inlet valve is not too small
Is it the vacuum pump oil return line? ? ?