Roots vacuum pump: Why add water to Roots vacuum pump
2020-12-10
Summary
Roots vacuum pump is one of the commonly used vacuum pumps. In terms of generating vacuum and pumping air, we found that they are still relatively powerful in these aspects. In use, there are strict requirements for many of its operations, and only in this way can the efficiency of the pump be improved. Sometimes water is added to achieve a good suction effect. So, why do you want to do this?
Roots vacuum pumpIt is one of the commonly used vacuum pumps. In terms of generating vacuum and pumping air, we found that they are still relatively powerful in these aspects. In use, there are strict requirements for many of its operations, and only in this way can the efficiency of the pump be improved. Sometimes water is added to achieve a good suction effect. So, why do you want to do this?
1.Roots vacuum pumpA liquid is required as a working fluid during operation. This liquid mainly chooses water as the working fluid. When the impeller rotates in a clockwise direction, the water will be thrown out by the impeller. Due to centrifugal force, the water forms a closed ring of approximately equal thickness determined by the shape of the pump chamber. The inner surface of the lower part of the water ring is just tangent to the impeller hub, and the inner surface of the upper part of the water ring just touches the tips of the blades. At this time, a crescent-shaped space is formed between the impeller hub and the water ring, which is separated by the impeller and several small cavities with the same number of blades.
2. IfRoots vacuum pumpStarting from 0 ° in the lower part of the impeller, when the impeller rotates 180 ° before rotation, the volume of the small chamber will become larger and it is connected to the oil suction port on the end surface. At this time, the gas is sucked in. When the air ends, the small cavity is isolated from the suction port; when the impeller continues to rotate, the small cavity changes from large to small, and the gas is compressed. When the small chamber communicates with the exhaust port, the gas is discharged from the pump.
3. When the water decreases, its work efficiency will decrease, which will increase energy consumption and increase operating costs. The function of the working fluid is not only used for pumping, but also used to reduce the temperature of the Roots vacuum pump. The working fluid is far below the normal level, which will increase the heat of the pump body, reduce the durability of the pump and increase maintenance costs.
Therefore, from the perspective of their work, we must add water to the Roots vacuum pump in time. On the one hand, the pressure of the pump can be changed by adding water, which has a good effect on suction and exhaust, which is conducive to the effective operation of the pump. Adding water can also reduce the possibility of pump heating.
Contact Us
E-mail:
sanniu888@126.com
Telephone:
400-6531-228/0086-531-83288777
Address:East Industrial Park, Xianggong Sub-district Office, Zhangqiu District, Jinan City, Shandong Province