Screw pump The selection of data shall consider its chemical characteristics, physical characteristics and pump pressure:

(1) The flow passage parts (suction chamber, discharge chamber, sealing box, etc.) of the screw pump can be made of cast iron, cast steel, stainless steel, etc;

(2) 45 carbon steel, 40Cr alloy structural steel, stainless acid resistant steel and other screw pump shafts shall be selected;

(3) Optional data, such as 40Cr, 45 steel, 38CrMoAl, lCr18N19T1, ICr18Ni12M012T1, etc;

(4) The data of screw pump rotor shall be selected mainly according to the nature of the medium. The commonly used data are: NR、 SBR, SBR, SBR UR、 Ethylene and propylene Fu、 Yellowing polyethylene CSM, etc.

This machine is suitable for transporting all kinds of lubricating oil, fuel oil and diesel oil. It has high flow (5-2000 m3/h), high discharge pressure (400 × l05Pa), high efficiency and stable operation. In recent years, the application of single screw pump in storage tank is more and more extensive.

IMO screw pump It is a positive displacement pump, which separates the gap between the pump body and the screw gear, and then separates the air inlet and exhaust port of the pump.

When the screw pump operates, the drive screw rotates, and the drive screw rotates with it. At the suction part, the cavity formed by the tooth cavity gradually increases, and then absorbs the fluid. When the cavity reaches the maximum value, it is the closing of meshing teeth and tooth cavities. In the closed cavity, the oil flow is discharged axially. At the outlet, the volume of the hole will gradually decrease and the liquid will be discharged,