Types of canned pumps and their working principles
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What types of canned pumps are there and what are their working principles? What media are generally used for conveying canned pumps?
It is a centrifugal sealless pump. The pump and the driving motor are enclosed in a pressure vessel filled with the pumped medium. This pressure vessel only has a static seal. This structure eliminates the rotating shaft sealing device of the traditional centrifugal pump and can be completely leak-free. The shield pump connects the pump and the motor together. The motor's rotor and the pump's impeller are fixed on the same shaft. The shield sleeve is used to separate the motor's rotor and stator. The rotor runs in the transported medium, and its power is transmitted to the rotor through the stator's magnetic field. From the above you can see what type of media it is suitable for. But it is generally used in situations of small and medium flow and low power. This post was last edited by wlsdwlsd on 2009-4-1 14:50 ]
Canned electric pumps are suitable for transporting liquids that do not contain solid particles, are corrosive, highly toxic, flammable, explosive and volatile, and can be widely used in chemical, petroleum, textile, refrigeration and food processing sectors. The canned electric pump is coaxially combined with a motor and a centrifugal pump. It is a complete and leak-free sealed integrated device. It does not require any sealing packing and the transported medium is guaranteed to be absolutely leak-free. 1) Structure: The canned electric pump is coaxially combined with a motor and a centrifugal pump. It is a complete and leak-free sealed integrated device. It does not require any sealing packing and the transported medium is guaranteed to be absolutely leak-free. (2) Circulation method: Pump body suction port → impeller suction port → impeller discharge → small hole in the front end cover → impeller suction port → impeller balance hole → between the front bearing and the front shaft → gap between the stator shield sleeve and the rotor → between the rear bearing sleeve → rear end cover → small hole in the cover plate → takeover → liquid storage tank. The liquid medium flowing through the motor lubricates the bearings and cools the motor.