What are the characteristics of wear-resistant multistage centrifugal pump

Design principle of wear-resistant multistage centrifugal pump: the existing multistage centrifugal pump generally adopts the unitary theory design for conveying clean water. For the multistage centrifugal pump used in coal mine, our company adds the design theory of two-phase flow to increase the suction performance and hydraulic design of the pump, which increases the suction head of the pump and reduces the impact wear of coal and water in the pump, It can convert energy, so as to increase the efficiency of the pump and increase the service life of the pump.
The wear-resistant multistage centrifugal pump is a segmented horizontal multistage pump, the suction port is horizontal and the discharge port is vertical upward. The water pump is directly driven by the prime mover through the coupling. Viewed from the end of the prime mover, the pump rotates clockwise and is mainly composed of stator, rotor, bearing and shaft seal:
1. The stator part is mainly composed of suction section, middle section, discharge section, guide vane, etc. each section is clamped with tensioning bolts to form a working chamber.
2. The rotor part is mainly composed of shaft, impeller, balance disc and shaft sleeve. The shaft transmits power to the impeller to make it work; The balance disc is used to balance the axial force; Both ends of the shaft are equipped with replaceable shaft sleeves to protect the shaft.
3. There are two kinds of bearings: rolling bearing and sliding bearing: rolling bearing is mainly composed of bearing body, bearing and bearing gland, which is lubricated with grease. The sliding bearing is mainly composed of bearing body, bearing cover, bearing bush, dust disc, oil level gauge, oil slinger, etc. it is lubricated with thin oil.
4. The shaft seal adopts packing seal, which is mainly composed of the water inlet section and the sealing box body on the packing box body, packing and water retaining ring. Seal the liquid in the working room and play the role of water seal, water cooling and water lubrication.

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