Detailed analysis of magnetic pump malfunction

The magnetic pump shaft is broken. The material used for the pump shaft of CQB type magnetic pump is 99% alumina porcelain. The main reason for the broken pump shaft is due to the dry wear of the bearings caused by the pump running empty. When disassembling the pump for inspection, it can be seen that the bearings are severely worn. The main way to prevent the pump from breaking is to avoid idling.The main magnetic pump product names of China magnetic pump Network include:CQG type vertical magnetic pump，CW magnetic vortex pump，IMD magnetic pump，MP magnetic circulating pump，MSP-18 magnetic-driving submersible pump，MT-HTP type high temperature magnetic pump

The magnetic pump bearing is damaged. The material used for the bearings of the TC magnetic pump is high-density carbon. If there is a water outage or impurities in the pump, it will cause damage to the bearings. If the coaxiality requirement between the inner and outer magnetic rotors of the cylindrical coupling cannot be guaranteed, it will directly affect the service life of the bearing.

The magnetic pump cannot produce liquid. The most common malfunction of a magnetic pump is that it cannot produce liquid, and there are many reasons for this. Firstly, check if there is any air leakage in the suction pipe of the pump, whether the air in the suction pipe is discharged, whether the amount of liquid injected into the magnetic pump is sufficient, whether there are debris blockages in the suction pipe, and whether the pump is reversing (especially after replacing the motor or repairing the power supply line). Also, pay attention to whether the suction height of the pump is too high. If the above inspection still cannot solve the problem, the pump can be disassembled for inspection to see if the pump shaft is broken. The dynamic and static rings of the pump should also be checked for integrity, and whether the entire rotor can move axially slightly. If axial movement is difficult, check if the carbon bearing is too tightly connected to the pump shaft.

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2024-11-01

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