What is a screw pump? What is the working principle of screw pump?

What is a screw pump? What is the working principle of screw pump?

Screw pump is one of the pump equipment that we can call popular. It is widely used in industry and daily life. The screw pump is used to transfer fluids with high or low viscosity along an axis. They are positive displacement pumps with one or more screws. Screw pumps are a type of pump developed based on Archimedes’ screw principle. Today, we often come across screw pumps in agricultural and irrigation fields. Positive displacement screw pumps by design create a partial vacuum through the action of the screws; they dissipate high axial force by pumping action.

Working principle of screw pumps

The working principle of screw pumps is a system based on the rotation of the rotor located inside the stator. There is a chain of waterproof cells in the rotor. In the revolution of the rotor located inside the stator, these chains move along the axis of the pump in a spirally definable fashion. As a result of this movement, there is no change in the liquid structure in terms of shape or content. It is possible to briefly summarize the working principle of screw pumps as follows. In the lower part of the body there is a supply opening through which the liquid enters the internal working chambers of the device; It is caught by the rotor blades and pushed into the upper part of the chamber. Thus, the pump performs its function. Capacity of screw pumps; It can be calculated according to the dimensions of the pump, the size of the screw surface and the rotational speed of the rotor.
What are the advantages of screw pumps?
There are several notable points regarding the advantages of screw pumps. Let’s summarize them in a few points.
• They are solid parts and have high durability levels
• High tolerance to water vapor and particle formation
• It also has a high tolerance for dust formation.
• High pumping speeds
• It is one of the efficient pump types