1. The bearing of the high temperature magnetic pump is damaged. The material used for the bearing of the high temperature magnetic pump is high-density carbon. If the pump is cut off or there are impurities in the pump, the bearing will be damaged. If the coaxiality requirement between the inner and outer magnetic rotors of the cylindrical coupling is not guaranteed, it will directly affect the life of the bearing.
2. Insufficient lift. The reasons for this failure are: there is air in the conveying medium, the impeller is damaged, the rotation speed is not enough, the specific gravity of the conveying liquid is too large, and the flow rate is too large.
3. The high temperature magnetic pump shaft is broken. The material used for the pump shaft of the CQB type high temperature magnetic pump is 99% alumina porcelain. The main reason for the fracture of the pump shaft is that the shaft is twisted and broken due to the dry running of the pump and the dry grinding of the bearing. When the pump is disassembled and inspected, it can be seen that the bearing has been seriously worn. The main method to prevent the pump from breaking is to avoid the dry running of the pump.
4. Insufficient flow. The main reasons for insufficient flow are: impeller damage, insufficient rotation speed, high lift, and debris in the pipe.
5. The high temperature magnetic pump cannot pump liquid. The failure of the high-temperature magnetic pump to pump liquid is the most likely fault of the pump, and there are many reasons for it. First of all, check whether there is air leakage in the suction pipe of the pump, check whether the air in the suction pipe is discharged, whether the amount of liquid poured into the high-temperature magnetic pump is sufficient, whether there is debris in the suction pipe, and also check whether the pump is reversed (Especially after the motor is replaced or the power supply line is overhauled), you should also pay attention to whether the suction height of the pump is too high. If the above inspection still cannot be solved, the pump can be disassembled and checked to see if the pump shaft is broken. It should also be checked whether the dynamic and static rings of the pump are in good condition, and whether the entire rotor can move axially in a small amount. If axial movement is difficult, check whether the carbon bearing is too tightly combined with the pump shaft.
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