IMO screw pump It is a pump that transfers liquid through rotating screw, and its working principle is as follows:

Screw pump It is mainly composed of worm gear, worm, pump body and seals. When the motor or engine drives the worm to rotate, the liquid enters the pump chamber through the pump body. There is a worm cavity between the worm gear and the worm, from which the liquid enters the pump cavity. While the worm rotates, the liquid in the pump cavity is driven by the spiral worm to deliver to the outlet direction.

During the whole process, the rotation of the worm generates friction and pressure, which pushes the liquid into the pump chamber and seals it inside the pump chamber. Because the volume of the pump chamber is decreasing, the liquid will be squeezed during the screw movement, resulting in a certain pressure. When the pressure is greater than the pressure of the pipeline or container conveying the liquid, the liquid will be pushed out of the pump body to achieve the purpose of conveying. IMO agent

The working principle of the screw pump is based on the continuous rotation of the screw and the volume change of the pump cavity. In the pump chamber, the worm constantly grasps and compresses the liquid and pushes it to the outlet. With the rotation of the worm, the liquid forms a continuous and stable flow in the pump body. The working principle of screw pump is similar to that of screw conveyor, but it is mainly used to transport high viscosity liquids, such as petroleum, chemical products, coatings, glue, etc.

The working principle of the screw pump enables it to transport high viscosity liquid, because the rotation of the screw can provide enough thrust to overcome the viscous resistance of the liquid. Due to the structural characteristics of the screw and the volume change of the pump cavity, the screw pump has a large conveying capacity and relatively small pump head loss. This makes screw pumps very suitable for handling liquids with high viscosity and solid particles.

The working principle of the screw pump also determines that it will produce certain pulsations in the conveying process. Due to the changes of the centrifugal force and extrusion force of the worm movement, the conveying flow will fluctuate, showing periodic pulsating flow. In order to reduce pulsation, pulsation damper is usually set at the outlet of the pump or twin screw pump and other structures are used to reduce pulsation. ALLWEILER

In a word, the working principle of the screw pump is to drive the liquid to flow continuously in the pump cavity through the rotation of the screw, and push the liquid to the outlet through the constantly decreasing pump cavity volume. ALLWEILER screw pump It is mainly used for conveying high viscosity liquid, with large conveying capacity and relatively small pump head loss. Although pulsation will occur in the working process, other devices can be used to reduce the impact of pulsation. Screw pumps are widely used in petrochemical, chemical, pharmaceutical and other fields.