Well-used Submersible Pump And Electrical Maintenance

Jan 02, 2021

The maintenance of well-used submersible pumps mainly includes mechanical and electrical aspects. Mechanical maintenance focuses on sealing and preventing corrosion, and electrical inspection focuses on cable insulation and prevention of leakage.

1.1 Daily maintenance of machinery

1) Regularly check the mechanical seal of the well-used submersible pump, check all kinds of seals, such as seal rings, refueling screws, seal boxes, etc., and repair or repair the worn parts and parts with poor sealing performance in time. For replacement, if it is found to be loose, it should be tightened in time, and if the seal is not tight, it should be replaced with new parts in time to ensure safe use.

2) Prevent corrosion of the well-used submersible pump. If the surface of the pump is damaged and peeled off, the rust should be removed in time, and anti-rust paint should be applied to protect it.

3) Regularly check the bearing condition of the well-used submersible pump to see if the bearing is worn, whether it is short of oil, whether there is running the inner ring or the outer ring, and whether it needs to be replaced.

4) Well submersible pumps are generally inspected and maintained every two years of use. The sound of mechanical operation can be used to preliminarily check whether the components of the well submersible pump are normal. Check whether the impeller is worn or cavitation, whether the shaft is rusty or deformed or worn, whether the fastening screws inside and outside the motor are loose, whether there is mud deposit or blockage in and around the pump port.

1.2 Daily maintenance of electrical aspects

1) Regularly check the insulation resistance of the well-used submersible pump to the ground, and check whether the cable is damaged; if it is damaged, it should be replaced in time to prevent leakage;

2) Frequently check the operating voltage and current of the submersible pump used in the well, and measure the three-phase voltage with a voltmeter should be basically the same;

3) During the operation of the pump, it is necessary to observe whether the meter readings and the vibration and sound of the pump are normal. If abnormal conditions are found, they must be dealt with in time.