How does the self-priming pump work?
The working principle of the self-priming centrifugal pump is that the self-priming centrifugal pump can send the water out due to the centrifugal force. Before the pump is working, the pump body and the inlet pipe must be filled with water to be in a vacuum state. When the impeller rotates rapidly, the blade causes the water to rotate quickly, and the rotating water flies from the impeller under the action of centrifugal force. After the water is thrown, the central portion of the impeller forms a vacuum region. The water of the water source is pressed into the water inlet pipe through the pipe network under the action of atmospheric pressure (or water pressure). This cycle is not enough, you can achieve continuous pumping. It is worth mentioning here that the self-priming centrifugal pump must be filled with water in the pump casing before it can be started. Otherwise, the pump body will be heated, vibrated, and the water output will be reduced, causing damage to the pump (referred to as “cavitationâ€. ") caused equipment accidents! There are many types of self-priming centrifugal pumps, and the following methods are common in classification methods.
1 According to the impeller suction method: single-suction self-priming centrifugal pump double suction self-priming centrifugal pump.
2 According to the number of impellers: single-stage self-priming centrifugal pump multi-stage self-priming centrifugal pump.
3 According to the structure of the impeller: open-type impeller self-priming centrifugal pump semi-open impeller self-priming centrifugal pump closed impeller self-priming centrifugal pump.
4 according to the working pressure: low-pressure self-priming centrifugal pump medium-pressure self-priming centrifugal pump high-pressure self-priming centrifugal pump side vertical self-priming centrifugal pump.
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