The working principle of a three screw pump

The working principle of a three screw pump mainly relies on the mutual meshing and rotational motion of the screws, which forms a sealed space inside the pump body to achieve the transportation of liquids. Specifically: 12

When the active screw rotates, the driven screw that meshes with it also rotates. This rotation causes the sealing line at one end of the suction chamber to continuously move axially towards the discharge chamber. fourteen

As the screw rotates, the volume of the suction chamber increases and the pressure decreases, causing the liquid to enter the suction chamber along the suction pipe under the pressure difference. fourteen

Subsequently, the liquid inside the sealed chamber moves continuously and uniformly along the axial direction to the discharge chamber. As the volume at one end of the discharge chamber gradually decreases, the liquid is discharged. fourteen

This working method enables the three screw pump to operate stably under high pressure and high flow conditions, and is widely used in situations where lubricating and particle free media need to be transported