Three screw pump is a new type of mechanical device for conveying liquids

Three screw pump is a new type of mechanical device for conveying liquids, which has the advantages of simple structure, easy operation, convenient use and maintenance, continuous and uniform liquid output, and stable pressure. The three screw pump not only has a simple structure but also a long service life: it has a structural form and generally has a small flow rate of 0. 2— — 6。5m3/h， The pump body and liner of the pump are integrated (collectively referred to as the pump body), and the shaft seal is a mechanical seal; The liner of pumps with medium or higher flow rates is fixed as a separate part inside the pump body, while high flow pumps are often made with a double suction structure and installed horizontally. The shaft seal is divided into mechanical seal and packing seal according to the different conveying media. Three screw pumps include 3G universal type, 3GC marine type and type. A three screw pump is a rotary displacement pump. Due to the mutual engagement of the spiral grooves on the active screw and the driven screw, as well as their cooperation with the inner surface of the three holes of the liner, several stages of dynamic sealing chambers are formed between the inlet and outlet of the pump. These dynamic sealing chambers will continuously move the liquid from the pump axis to the pump outlet, and gradually increase the pressure of the conveyed liquid, thus forming a continuous, stable, and axially moving pressure liquid.