What caused the motor of the shielded pump used for transporting methanol to burn out?
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The methanol pump in our factory has a designed flow rate of 113 cubic meters, a head of 90 meters, and a power rating of 55 KW. It is used to transport methanol, and no cooling water is required. Recently, it stopped operating frequently due to current overload (that’s what the electrical team calls it). One day it stopped again for the same reason; the personnel on site tried to restart it with the help of the electrical team, but it stopped operating once more. During the second attempt at startup, the motor was damaged. What could be the cause of this? ?
What is the temperature of the methanol, and what is the inlet pressure? Generally, cavitation occurs in the pump
We can replace it with a new pump for free, charging only the savings in electricity costs over one year. Trust us, it’s the right choice. There may be a problem with the performance curve of your pump.
Is the bearing damaged? What is the coolant flow rate? Beijing Chuangzhi Zhonghe
Should we first find out the reason for the pump overload during evaluation? Is it overload caused by defective vulnerable parts, contact between large components, or damaged motors?—Only then can further analysis be carried out. Too little information is provided; for example, a bearing wear monitoring chart showing its current condition. Companies in the Imperial series such as Dalian Imperial, Dalian Lianyou, and Nisshin Seiki all provide wear charts, as well as information on vibration levels, etc
It may be that the insulation paint inside the motor has aged, causing the motor to heat up rapidly and thus leading to overload
Is the self-cooling pipeline blocked?
If frequency fluctuations occur, it is necessary to carry out maintenance; continuing to use the device blindly is not advisable, as frequent starting can easily cause the motor to overheat and get damaged.