The impeller is installed in the pump shell and is fastened on the pump shaft. The pump shaft is directly driven by the motor. A liquid in the center of the pump shell is connected with a suction tube. The liquid through the bottom valve and the suction tube into the pump. The liquid discharge port on the pump shell is connected with the discharge tube.

Before the pump is started, the pump shell is filled with the conveyed liquid; after starting, the impeller is driven by the shaft at high speed, and the liquid between the blades must be rotated. Under the action of centrifugal force, the liquid is thrown from the center of the impeller to the outer edge and obtains the energy, so as to get out of the outer edge of the impeller and enter the volute pump shell at high speed. In the volute, the liquid decelerates due to the gradual enlargement of the flow channel, and transforms some kinetic energy into hydrostatic energy. Finally, it enters the outlet pipe with high pressure and sends it to the needed place. When the liquid flows from the center of the impeller to the outer edge, a vacuum is formed at the center of the impeller. Because the pressure above the storage tank is greater than the pressure at the pump inlet, the liquid is continuously pressed into the impeller. It can be seen that as long as the impeller rotates continuously, the liquid will be constantly inhaled and discharged.

The working principle of the linear pump is different from that of any other pump. The magnetic levitation principle and the spiral ring hydrodynamics structure are used to achieve fluid propulsion, that is to cancel the shaft, cancel the shaft connection and cancel the shaft seal structure. After starting, the current is converted into a magnetic field, and the magnetic force drives the spiral ring to move, that is, the spiral ring promotes the flow of flow.

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