The multi-stage pump is a kind of centrifugal pump and relies on the rotation of the impeller to obtain the centrifugal force. When the gas density reaches the multi-stage pump, it is a kind of centrifugal pump. It also relies on the rotation of the impeller to obtain the centrifugal force, and wait until the gas density reaches the working range of the mechanical vacuum pump. The gas is pumped out to gradually obtain a high vacuum.

The multi-stage pump body is filled with an appropriate amount of water as the working fluid. When the impeller rotates clockwise, the water is thrown around by the impeller. Due to the centrifugal force, the water forms a closed seal of approximately equal thickness depending on 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 upper inner surface of the water ring is just in contact with the tip of the blade (actually the blade has a certain depth of insertion in the water ring). At this time, the impeller hub and the water ring A crescent-shaped space is formed between them, and this space is divided by the impeller into a number of small cavities equal to the number of blades.

If the lower part of the impeller is 0° as the starting point, then the volume of the small cavity becomes larger and larger and becomes larger than the suction port on the end face when the impeller is 180° before the rotation. At this time, the small cavity and the suction port are at the end of the gas suction. Isolated; when the multi-stage pump impeller continues to rotate, the small cavity becomes larger and smaller to make the gas compressed; when the small cavity communicates with the exhaust port, the gas is discharged outside the pump.

In summary, the multi-stage pump is a centrifugal pump that can change the volume by changing the volume of the pump chamber to achieve suction, compression and exhaust.

Multi-stage pumps can be used in many industrial sectors such as petroleum, chemical, machinery, mining, light industry, medicine and food. In many processes of industrial production, such as vacuum filtration, vacuum water diversion, vacuum feeding, vacuum evaporation, vacuum concentration, vacuum resurgence Multi-stage pumps such as vacuum degassing are widely used. They can remove flammable and explosive gases and can also remove dusty and water-containing gases. Therefore, multi-stage pumps are increasingly used.
Related products: multi-stage centrifugal pump vertical multi-stage centrifugal pump light vertical multi-stage centrifugal pump article from: http://NewsDetail257T1.html China Hardware Business Network http://news.chinawj.com.cn Edit: (Hardware Business Opportunities Network Information Center)http://news.chinawj.com.cn

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