Eddy current loss of magnetic pump
Magnetic pump uses permanent magnetic coupling to realize non-contact power torque transmission. In this way, a pressure bearing housing can be installed in the magnetic field air gap to isolate the working medium from the atmosphere, so that the common shaft dynamic seal becomes a static seal. The pressure bearing shell is commonly known as "isolation sleeve", and its installation position and working conditions determine the special requirements for material performance. Such as high mechanical strength, non ferromagnetism, high resistivity, corrosion resistance, etc. Among the conventional materials, there are no materials that meet all the conditions. In the case of helplessness, we have to use non ferromagnetic and relatively high resistivity metal materials. Such as austenitic stainless steel, Hastelloy, titanium alloy, etc.
In the small power range, Roland magnetic pump is about 8~12% more efficient than comparable ordinary magnetic pump and canned motor pump; Compared with the mechanical seal pump, the efficiency is about 2% lower, and the efficiency will be about 6% lower when it is half away from the BEP point.
Magnetic pump is also a type of centrifugal pump. It is also called magnetic centrifugal pump, but magnetic drive centrifugal pump (referred to as magnetic pump for short). This pump applies the principle of modern magnetic mechanics
The pressure bearing shell is commonly known as "isolation sleeve", and its installation position and working conditions determine the special requirements for material performance.
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