Multistage pump is a kind of centrifugal pump, is to have the same function of more than two centrifugal pump pump set together, fluid channel structure, performance in the first level of the medium pressure relief port and the second level of the inlet, the second level of the medium pressure relief port and the third level of the inlet, so the series of the mechanism formed a multistage centrifugal pump.
Multistage pump-specialty
MD type wear-resistant multistage centrifugal pump, is our company in D type multistage water centrifugal pump on the basis of improved design of a wear-resistant multistage centrifugal pump. MD type wear-resistant multistage centrifugal pump high efficiency, energy saving, reliable wear resistance, long life. Suitable for conveying clean water and neutral mine water (particle size less than 0.5mm) with solid particle content less than 1.5% (volume concentration), as well as other similar sewage liquids. Especially suitable for coal mine drainage.
2.Multistage pump- composition
Multistage pump is mainly composed of stator, rotor, bearing and shaft seal four parts:
1. The multistage pump stator is mainly composed of suction section, middle section, spit section and guide vane, etc., and the tension bolt will clamp each section to form a studio. D type pump general horizontal suction, vertical up spit; Used for oilfield water injection, pump inlet and outlet are vertical upward. DG type multistage pump, inlet are vertical upward.
2, multistage pump rotor part is mainly composed of shaft, impeller, balance disc and shaft sleeve. The axial force is balanced by the balance disc.
3. Multistage pump bearings are mainly composed of bearing body, bearing and bearing gland, etc., and bearings are lubricated with grease or thin oil.
4, multistage pump shaft seal using soft packing seal, mainly by the inlet section and tail cover on the sealing function, packing, retaining ring, etc.
5, multistage pump rotation pump through the elastic coupling directly driven by the prime mover. Looking at the pump from the prime mover end, the pump rotates clockwise.
3.Multistage pump- working principle
Multistage pump is in and out of the water section and the middle section, through the pull rod combination. His output water pressure can be very large, is a kind of centrifugal pump, but also depends on the rotation of the impeller in obtaining centrifugal force, so as to material. When the gas density reaches the working range of the mechanical vacuum pump, it is extracted, so that the high vacuum is gradually obtained. Multistage pump depends on the volume of the pump chamber to achieve suction, compression and exhaust, so it is a variable volume centrifugal pump.
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Email: marryli@deponpump.cn
Whatsapp: +86 15830274976
Sales manager:Marry Li
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