10/24/2019

How does 2BV water ring vacuum pump resist cavitation


2BV water ring vacuum pump has the characteristics of simple structure, simple installation, oil-free, safe and reliable, etc. Due to its unique characteristics, it is widely used in petroleum, chemical, pharmaceutical, food, sugar industry and other fields. It is well known that a piece of equipment will cavitate over time. How does a 2BV water ring vacuum pump resist cavitation? Let's talk about it in detail.
1. Reduce the temperature of working fluid of 2BV water ring vacuum pump to prevent cavitation.
2. By lowering the inlet temperature, the temperature of water circulating liquid can be lowered indirectly to prevent cavitation, and the drying speed of materials can also be improved to improve the utilization rate of equipment.
In installing a condenser inlet end, according to the calculated heat transfer area, containment inlet temperature condensation to condensable gas points corresponding to the temperature below the dew point pressure, condensate condensable gases, and pressure is reduced, thus the pressure gradient between the vacuum pump and the use point, raised to the dry material moisture vaporizing transfer speed, reduce the drying time, drying equipment and vacuum pump and condenser and without the contrast between can improve the drying speed of 40-50%, into the pump gas mixes with water vapor temperature after temperature lowering and not rise too much, reduce the heat transfer area of back-end water irrigation, so no, It can not only protect the equipment, improve the utilization rate of the equipment, but also protect the environment.
3. When cavitation occurs in the 2BV water ring vacuum pump, the main damage is the pitting corrosion of the impeller and pump shell surface caused by bubble rupture.
We can introduce atmospheric gases in the area of the compression, the specific method is: transition zone to drill a hole in the pump compression, and then the atmosphere with line into the area, when the bubble burst in the compression process, the introduction of air from the outside world can timely supplement by bubble burst "space", it can greatly reduce the damage to the pump cavitation and reducing the noise and vibration caused by cavitation.
4. It can be seen from the causes of cavitation of 2BV water ring vacuum pump that a working fluid with saturated vapor pressure can be replaced with a liquid with good fluidity and compatibility with the extracted gas, so as to reduce cavitation and improve vacuum degree. One disadvantage of this approach is the post-contamination treatment of the working fluid. So changing the working fluid is rarely used.
Mainly we pay more attention to these aspects when using, or cavitation drilling holes to harm the 2BV water ring vacuum pump, we can according to the above mentioned, do more work to resist erosion, to help it become more usable, hope that the above introduction can bring help to everyone's use. If you have any requirements, please contact us.

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