What is the working principle of water pump?

The principle of water pump is to use the impeller installed on the pump shaft to rotate at high speed, and the blades interact with the transported liquid to make the liquid gain energy, so as to achieve the purpose of transporting liquid.

According to the working principle of impeller, vane pump can be divided into three basic types: centrifugal pump, axial flow pump and mixed flow pump. Centrifugal pumps are often used for horizontal pumps, axial pumps and mixed-flow pumps are often used for vertical pumps. Because the impeller of a centrifugal pump keeps rotating in the pump shell filled with water, the water between the blades on the impeller makes centrifugal motion under the action of centrifugal force, rushes to the shell at a certain speed and pressure, and flows into the water outlet pipe of the pump through the flow channel in the shell.

At the same time, a vacuum is formed in the center of the impeller, and the water in the suction pipe flows into the center of the impeller under the action of atmospheric pressure, filling this vacuum area; The water flowing into the center of the impeller is acted by centrifugal force, and then flows into the outlet pipe of the water pump through the shell. In this way, as long as the suction pipe can keep replenishing water and the impeller keeps rotating, the continuous water delivery process of the pump is completed.

Extended data:

Matters needing attention in the use of water pump:

1, remember not to let the pump work if there is a minor fault. If the packing of the pump shaft is worn, it should be added in time. If the pump is used continuously, it will leak.

2. When the pump vibrates strongly during use, it must be stopped for inspection, otherwise it will also cause damage to the pump.

3. When the bottom valve of the water pump leaks, it must be repaired. If it is serious, it needs to be replaced with a new one.

4. Pay attention to the maintenance of the water pump after use. For example, if the water pump is used up, clean the water in the pump. It is best to unload the water pipe and then rinse it with clear water.

5. Remove the adhesive tape from the water pump, then rinse it with water and dry it in the sun. Don't put the tape in a dark and damp place. The adhesive tape of the water pump must not be stained with oil, and it must not be coated with sticky things.

Baidu encyclopedia-water pump