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Issues with vacuum level in the water-water circulation of water ring vacuum pumps

2016-06-26View Original

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Water ring vacuum pumps generate a large amount of wastewater, and treating it directly is too costly. If water is reused, after some time, as the amount of dissolved organic matter in the water increases, will this affect the vacuum level?
Reply #22016-06-28
It is the rise in water temperature that affects the vacuum level
Reply #32016-06-28
An increase in water temperature has a significant impact on the vacuum level; since the saturated vapor pressure of water is low, it vaporizes more easily when heated, which leads to a decrease in vacuum level. Another drawback of water ring pumps is that the wastewater is difficult to treat; when there are many light components dissolved in it, the odor becomes quite unpleasant. A closed-loop system can be considered, but wastewater is still inevitable; a screw pump could be tried.
Reply #42016-06-28
The equipment is a vacuum pump unit consisting of two Roots pumps connected in series, with a water ring pump connected in series ahead of them. If it needs to be replaced, the entire unit may have to be replaced.
Reply #52016-06-28
Agree: victory:
Reply #62016-06-28
Rising water temperature in a circulating system is easy to handle by adding a cooling device to the circulation tank. Currently, the main issue is the organic matter in wastewater. I’m not sure what criteria are used to determine when it should be discharged and sent for biochemical treatment
Reply #72016-06-29
Due to the high vacuum level achieved by claw pumps, the ultimate vacuum limit for a single pump is generally within 50 Pa. I recommend replacing your water ring Roots unit outright. This is because water ring vacuum pumps can often cause problems such as overheating of the rotary vane vacuum pump and damage to its motor, even when the vacuum level is unstable
Reply #82016-06-29
Well, a dedicated wastewater treatment facility is necessary; otherwise, the standards won’t be met for discharge. Environmental protection regulations are also being enforced more strictly these days; if there is no capability to treat wastewater, it is not recommended to use water ring pumps.
Reply #92016-07-01
The answer is yes; even in a closed-loop system, it is necessary to replace or replenish the fresh water on a regular basis
Reply #102016-07-11
It is necessary to know exactly what organic substances can dissolve in water

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