Centrifugal pump

The working principle of the centrifugal pump: After the centrifugal pump is started, the pump shaft will drive the impeller to rotate at a high speed, forcing the pre-filled liquid between the blades to rotate. Under the action of inertial centrifugal force, the liquid moves radially from the center of the impeller to the outer periphery. The liquid medium gains energy during its movement through the impeller, resulting in an increase in static pressure energy and an increase in flow velocity. When the liquid leaves the impeller and enters the pump casing, it slows down due to the gradual expansion of the flow passage in the casing, and part of the kinetic energy is converted into static pressure energy, and finally flows into the discharge pipeline in a tangential direction. When the liquid is thrown from the center of the impeller to the outer periphery, a low pressure area will be formed in the center of the impeller. Under the action of the total potential energy difference between the liquid level of the storage tank and the center of the impeller, the liquid will be sucked into the center of the impeller. Relying on the continuous operation of the impeller, the liquid is continuously sucked and discharged. The mechanical energy obtained by the liquid in the centrifugal pump is ultimately manifested as an increase in static pressure energy.