Fluoroplastic magnetic pump is a new product that applies the working principle of permanent magnetic coupling to centrifugal pump. It has reasonable design, advanced technology, and has the characteristics of full sealing, no leakage, and corrosion resistance.
1.Pump shaft damage.
The pump shaft of the fluoroplastic magnetic pump is made of 99% alumina ceramic. The main factor for the pump shaft breakage is that the shaft is twisted due to the dry operation of the bearing due to the operation of the pump. When the pump is disassembled, it can be seen that the bearing has been worn. The main way to prevent pump breakage is to reduce the idling operation of the magnetic pump.
2. Bearing damage.
The material used in the fluoroplastic magnetic pump is made of high-density carbon. If the pump is turned off or there are impurities in the pump, the bearing will be damaged. If the coaxiality between the inner magnetic rotor and the outer magnetic rotor of the cylindrical coupling cannot be effectively maintained, it will directly affect the life of the bearing.
3. Fluoroplastic magnetic pump has insufficient head.
The factors that cause this obstacle are: gas in the conveying liquid, impeller damage, insufficient speed, excessive density of the transmission medium and excessive pump flow.
4. Fluoroplastic magnetic pump has insufficient flow.
The main factors leading to insufficient pump flow are: impeller damage, insufficient speed, excessive pump lift and debris in the pipe.
5. Fluoroplastic magnetic pump cannot pump out the medium.
The pump cannot make the medium an obstacle that the pump is prone to, and there are many factors. First, check whether the suction line of the pump is leaking. Check whether the gas in the suction pipe is discharged. Is the amount of medium in the fluoroplastic magnetic pump satisfied? If there is any debris in the suction pipe, check the pump. It does not reverse [especially after replacing the motor or repairing the power cord, also pay attention to whether the suction height of the pump is too high. If the above inspections still cannot be cleared, the pump can be disassembled and the pump shaft can be checked for damage. Also check whether the moving ring and static ring of the pump are intact, and whether the entire rotor can move a small amount. If the axial displacement is difficult, check whether the carbon bearing is too tight to the pump shaft. It is worth noting that the fluoroplastic magnetic pump has not been repaired many times, and attention should be paid to whether the operation of the magnetic coupler is correct. The bearings, inner magnetic rotors and spacers generate heat during operation, which causes the working temperature to rise, one level reduces the transmission power, and the other level faces the pump to transport easily evaporable media. As the temperature rises, the power transmitted by the magnetic steel presents a continuous decreasing curve.
Generally, below the working limit temperature of the magnetic steel, the reduction of transmission efficiency is reversible, and above the limit temperature is irreversible, that is, the cooling of the magnetic steel. After that, the lost transmission efficiency can no longer be restored.
Under special conditions, when the magnetic drive coupling slips out, the eddy current heat in the gasket will increase sharply and the temperature will rise sharply. If it is not solved in time, the magnetic steel will be demagnetized and the magnetic drive coupling will be ineffective. Therefore, the magnetic drive pump should be designed with a reliable cooling system.