The principle of the centrifugal water pump is that the pump body and the suction pipe are filled with liquid before starting the pump. When the impeller rotates at high speed, the impeller drives the liquid between the blades to rotate together. Due to the centrifugal force, the liquid is thrown from the center of the impeller to the outer edge of the impeller, and the kinetic energy increases accordingly. When the liquid enters the pump casing, the liquid flows out along the discharge port at a higher pressure. At the same time, a certain vacuum is formed at the center of the impeller due to the liquid being thrown out, and the pressure at the liquid surface is higher than that at the center of the impeller. Therefore, the liquid in the suction line enters the pump under the action of the pressure difference.
Finally, the impeller keeps rotating, and the liquid is continuously sucked in and pressed out. The reason why the centrifugal pump can transport liquid mainly depends on the centrifugal force, so it is called centrifugal pump.
The working principle of centrifugation is the performance of the inertia of objects, such as water droplets on an umbrella. When the umbrella rotates slowly, the water droplets will follow the rotation of the umbrella. This is because the friction between the umbrella and the water droplets gives the water droplets centripetal force.
But if the umbrella rotates faster, the frictional force is not enough to make the water droplets move in a circular motion, then the water droplets will leave the umbrella and move towards the outer edge, which is the so-called centrifugal force.
Centrifugal pump is when the pump is full of water, the impeller rotates to generate centrifugal force, the water in the impeller channel is thrown to the periphery and flows into the pump casing under the action of centrifugal force, so the pressure in the center of the wheel decreases. This pressure is lower than the pressure in the water inlet pipe, and the water flows into the impeller from the suction pool under the action of this pressure difference. In this way, the water pump can continuously absorb and supply water.
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