What is the working principle of centrifugal pump?

The reason why a centrifugal pump can deliver water is due to the action of centrifugal force. Before the water pump works, the pump body and the water inlet pipe must be filled with water to form a vacuum state. When the impeller rotates rapidly, the blades cause the water to rotate rapidly. The rotating water flies out of the impeller under the action of centrifugal force. After the water in the pump is thrown out, a vacuum area is formed in the center of the impeller. The water from 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 continues, and continuous water pumping can be achieved.