Dongda electromechanical takes you to learn the precautions in the use of pneumatic submersible pump

Pneumatic submersible pump plays an important role in many fields. Many customers like it very much. For customers, how to extend the service life of the pump is a concern and a good way to save cost. Today, Xiaobian will lead you to learn about the problems that should be paid attention to in the use of pneumatic submersible pump, hoping to help you.

1. Avoid motor rotation in the opposite direction

At present, there are many types of submersible pumps that can produce water in both forward and reverse rotation. However, when the pump is in reverse rotation, the water yield is small and the current is large. If the pump is in reverse rotation for a long time, the motor winding will be damaged. Therefore, before entering the water, the power supply should be connected to check whether the direction of rotation is correct. If the impeller of the mine pump is reversed, the machine should be stopped immediately and the wiring of any two phases of the three-phase core wire in the cable can be replaced.

2. Avoid not grounding

Protective grounding is a compulsory standard for pneumatic submersible pump. Only protective grounding can ensure personal safety. If there is no protective grounding, once the shell leakage, the water at the outlet of the submersible pump and the surface of the pump will be electrified, endangering the safety of human and livestock, and wasting a lot of electric energy.

3. Avoid starting when the power supply voltage is abnormal

Too high and too low voltage will make the submersible pump temperature rise too high, shorten the service life and even burn down the mine submersible pump. Due to the long low-voltage power supply line in rural areas, it is common that the voltage at the end of the line is too low and the voltage at the beginning is too high. Therefore, in the process of using the submersible pump, the operator should observe the power supply voltage value at any time. If it is less than 10% of the rated voltage, more than 10% of the rated voltage, or the current is greater than 20% of the rated current of the mining submersible pump, the operator should stop the machine immediately and avoid starting the machine when the power supply voltage is abnormal.

4. Do not install leakage protector

Submersible pump working in water is easy to cause electric energy loss and even electric shock due to electric leakage. If a leakage protector is installed, as long as the leakage value of the pump exceeds the action current value of the leakage protector, the leakage protector will cut off the power supply of the mine submersible pump.