High Temperature Resistant Centrifugal Pump Installer
Is the motor heating normal during the use of the centrifugal pump?

2021/10/12

In the chemical industry, the use of centrifugal pumps is very common. Centrifugal pump generally uses motor to drive operation, which is easy to use, safe, fast and so on. It is an indispensable and important power provider in everyone's production and work. In the process of using, a lot of motors will have serious heating phenomenon, but often do not know how to solve it, and what is more serious is that we do not know what causes the motor heating. This should be mastered in advance in the process of using the motor. Next, let's find out why the motor heating is very serious and what causes it. The heating of the motor during the use of the centrifugal pump can be judged and solved in time:

1. Overload; lack of phase; overvoltage, undervoltage or voltage imbalance; excessive moment of inertia of load; long starting time; frequent start and stop or frequent positive reversal.

2., the room temperature is too high; the fan is broken or the air inlet and outlet is blocked; the heat dissipation is not good.

3.the internal wiring of the new motor is wrong; turn-to-turn short circuit; the winding process of some motors is poor.

4.star triangle or self-even buck start-up load start-up time is long or does not switch normally due to failure; star triangle wiring is incorrect.



5. the motor is d the harmonics of the power supply are too large, for example, there are large rectifier equipment and high frequency equipment nearby; the core flux of the motor which has been repaired for many times is reduced.

6.the high temperature of the motor is generally unlikely to be a bearing problem, unless the bearing temperature is too high. The machine is stuck and blocked; the bearing is short of oil.

7.the rotor bar of the squirrel cage induction motor is broken; the rotor winding of the winding asynchronous motor is broken or the resistance is unbalanced; the rotor sweeps the chamber; therefore, in the production and use of the motor, we must pay attention to these detailed problems, that is to say, in use, in accordance with the norms of operation, in addition, to ensure daily inspection and maintenance, which must be done in production.
   

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