What is the effect of demagnetization of magnetic pump

Since the sliding bearing of the fluoroplastic magnetic pump is lubricated and cooled by the transmission medium, during operation, the lubrication channel must provide sufficient medium flow to lubricate and cool the annular gap area between the internal magnetic rotor and the isolation sleeve, and the friction pairs between the sliding bearing, the thrust disk and the shaft. But the manufacturer only opens an oil return hole between a pair of sliding bearings, which is the middle part of the pump shaft. The shaft and the reflux hole are not through holes, which will lead to insufficient flow of cooling and lubricating media through the friction pair, the heat generated can not be taken away in time, and a good liquid friction state can not be established and maintained. Poor self-lubrication cooling leads to dry friction of the sliding bearing, resulting in shaft retention, while the external magnetic rotor continues to rotate to generate heat. Below the working limit temperature of the internal magnetic rotor (NdFeB is 120 ℃), the decrease of the transmission capacity is reversible, while the temperature higher than the limit temperature is irreversible. After the cooling of the internal magnetic rotor, the lost transmission capacity can no longer be restored, resulting in the gradual loss of magnetism of the internal magnetic rotor, resulting in high-temperature degaussing of the internal magnetic rotor.

CQB-F magnetic pump product is a high-power, high-lift magnetic drive pump developed by our company based on 20 years of magnetic pump manufacturing experience. Their appearance and installation dimensions are designed and manufactured in accordance with ISO international standards. The overall structure is directly connected by the motor and supported by the middle bracket, which has the advantages of compact structure, convenient disassembly and assembly, and a wide range of properties; the magnetic steel used to transfer torque uses the advanced rare earth material permanent magnet-"NdFeB" to make internal and external magnets. The isolation sleeve combination is made of new non-metallic material lining F46, which has high strength mechanical property, which completely eliminates the magnetic eddy current loss of the ordinary magnetic pump and improves the efficiency of the whole machine. It can transport strong corrosive medium with high concentration and density greater than 1.84 t/m3. The main components are made of F46 steel lining with high pumping strength and resistance to all strong acids and bases. It is especially suitable for transporting flammable, explosive, toxic, volatile and heavy chemical media. It has been put on the market in large quantities, and has replaced the imported magnetic pump in many projects, and has been widely praised by users.