Why does the vacuum level of the water ring vacuum pump suddenly increase, and does it return to normal after restarting the pump?
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Dear experts: Why does the vacuum level of the water ring vacuum pump suddenly increase, and does it return to normal after restarting the pump?
I have never seen this situation; please have the manufacturer explain it.
This post was last edited by qwl on 2018-1-14 08:45 to repair the side cover of the water ring vacuum pump, adjust the clearance to the specified value, and check and adjust the bearings.
Does it happen again after restarting after a while? Let’s check the pipelines first
It’s the outdoor unit, right? Because the lower the temperature of the water ring vacuum pump, the slower moisture evaporates. The moisture evaporated from the intake port increases the vacuum level. The pressure at which a vacuum pump operates is related to temperature, air composition, and volume; the lower the temperature, the higher the negative pressure. ~~~The poster should measure the temperature of the circulating fluid~~~ It’s possible to use circulating cooling water, electric heating, or steam to adjust the temperature
When the vacuum pump stops operating, the non-condensable gases cannot be removed, and the vacuum level will gradually decrease
It occurred 3 times within 12 hours; it has now been running normally for several days in a row
It’s indoors, but we use plate heat exchangers for circulating water; these plate heat exchangers use chilled water to facilitate cooling. The temperature of the chilled water is set at 6 or 7 degrees. In my opinion, a higher water temperature can affect the vacuum level due to water evaporation, and too low a temperature can also have an impact?
Once, there was an issue with the low vacuum level; the three of us spent two days investigating it, and eventually we found that it was the pressure gauge that was broken
;P Actually, such things do happen at work