The working principle of the screw pump

The screw pump uses the rotation of the screw to suck and discharge the liquid.

Due to the mutual engagement of the screws and the close fit of the screw with the inner wall of the liner, it is divided into one or more sealed spaces between the suction inlet and the discharge outlet of the pump. With the rotation and engagement of the screw, these sealed spaces are continuously formed at the suction side of the pump, the liquid in the suction chamber is sealed therein, and the suction chamber is continuously pushed along the axial direction of the screw to the discharge end, and will be enclosed in each space. The continuous discharge of liquid is like a nut that is continuously pushed forward while the screw is turning. This is the basic working principle of the screw pump.

The screw pump has a single screw pump, a double screw pump and a triple screw pump.

The working principle of the screw pump is: when the screw pump is working, the liquid is sucked into the sealed space enclosed by the thread and the pump shell. When the active screw rotates, the screw pump sealing volume increases the screw pump pressure under the compression of the screw teeth. And move in the axial direction. Since the screw is rotating at a constant speed, the flow out of the liquid is also uniform.

Screw pump features: low loss of the screw pump, good economic performance. The pressure is high and uniform, the flow rate is uniform, the rotation speed is high, and it can be directly connected with the prime mover.

The screw pump can transport lubricating oil, deliver fuel, and transport various oils and polymers to deliver viscous liquids.