Canned Motor Centrifugal Chemical Pump - China

Canned motor pump no leakage chemical pump

Chemical canned pump is a sealless pump, with a sealed working environment.

Its working mode is different from that of centrifugal pump, but no leakage is its biggest characteristic.

Working principle, advantages and disadvantages, structure and classification of chemical canned pumps

1, Working Principle of Chemical industry canned motor Pump

The drive of an ordinary centrifugal pump is to connect the impeller shaft of the pump with the electric shaft through a coupling, so that the impeller and the motor rotate together and work.

The chemical industry canned motor pump is a sealless pump, and both the pump and the drive motor are sealed in a pressure vessel filled with the pumped medium.

This pressure vessel is only statically sealed, and a set of wires provides a rotating magnetic field and drives the rotor.

This structure cancels the rotary shaft sealing device provided by traditional centrifugal pumps, so it can be completely leak free.

2, Advantages of canned motor Pumps

1 - Totally enclosed: The overall structure is sealless, with only static sealing at the pump casing, making it completely leak free.

It is particularly suitable for transporting flammable, explosive, precious liquids, toxic, corrosive, and radioactive liquids.

2 - Smooth operation, low noise, no need to add lubricating oil: Since there are no rolling bearings and motor fans, no need to add lubricating oil.

3 - High safety: The rotor and stator each have a shielding sleeve to prevent the motor rotor and stator from contacting materials.

Even if the shielding sleeve breaks, there is no risk of leakage.

4 - Compact structure and small footprint: The pump and motor are integrated, making disassembly and assembly very convenient.

Low requirements for the base, and less daily maintenance work, maintenance costs are also relatively low.

5 - Wide application range: It can meet requirements for various working conditions such as high temperature, high pressure, low temperature, and high melting point liquids

3, Disadvantages of canned pump

1 - Due to the use of sliding bearings in canned pumps and the use of transported media for lubrication, canned pumps are unlikely to be able to transport non lubricated media.

Generally, the viscosity suitable for shielded pump media is 0.1~20mPa.

s.

2 - The efficiency of canned pumps is generally lower than that of single ended mechanical seal centrifugal pumps (IH chemical centrifugal pumps, IHF chemical centrifugal pumps), but approximately equivalent to that of double ended mechanical seal centrifugal pumps.

3 - Operating under low flow conditions for a long time can greatly reduce work efficiency, resulting in heat generation, liquid evaporation, and dry running of the pump, which can damage the sliding bearings.

4, Structure of canned pump

Chemical industrial canned motor pump is a type of centrifugal pump, mainly composed of pump body, impeller, stator, rotor, front and rear guide bearings, and thrust disk.

The motor and pump are integrated, the stator and rotor surfaces are wrapped with nonmagnetic thin-walled materials, and the rotor is supported by front and rear guide bearings and immersed in the conveyed medium.

The rotor shaft end is equipped with an impeller, forming a structure without a shaft seal to achieve the purpose of leak free transportation.

Company Contact:

• Posted By: Zhangjiagang free trade zone kenshine international trading Co.,LTD

• Phone: +8651258583352

• Address: Room 216-108, Textile resources market, Zhangjiagang , SUZHOU , China

• Email:

• Website: http://www.kenshine-pump.com

• Business Description: Our company is specialized in water pumps, electromechanical equipments and accessories etc for many years:
  
  …Various fluid pumps(centrifugal pump, chemical industrial pump, submersible pump, self priming pump, sewage pump, electromagnetic pump, diaphragm pump, gear pump, screw pump etc and their parts such as mechanical seal, pump casings, coupling, impellers etc)
  
  …Oil drilling equipments and parts (triplex mud pump, mud valve, drilling motor, drilling bits and parts of mud pumps such as piston, cylinder, valves and seats etc)
  
  …Mechanical parts and tools, instruments etc