Seven suggestions and troubleshooting for the use of submersible pumps
1. Check the insulation resistance of the submersible pump at regular intervals (about 1000h). It should be no less than 0.5MΩ. If it does not meet the requirements, it must be dried.
2. Before use, check the cables, switches, electric shock protectors, etc. The switches and other electrical appliances should work normally, the cables are not damaged, and pay attention to carefully identifying the cables. The yellow and green two-color wires are grounding wires to prevent leakage and electric shock accidents.
3. Regularly check the drain hole and oil drain hole. Tighten if there is no abnormality.
4. When the submersible pump enters or exits the water, the TSWA horizontal multi-stage pump must first cut off the power supply, and then pull the rope tied to the hoisting ring, so that the cable can definitely be pulled
5. The submersible pump cannot be buried in the river mud. If there are a lot of leather and sundries in the water, put the submersible pump in a basket or basket, and then put the basket or basket in the water.
6. When the submersible pump is tested outside the water (such as to determine the steering), it should not exceed 5 minutes to prevent the motor from heating and burning.
7. After the submersible pump has been working for 300 hours, a sensitive water inspection should be carried out. If the discharged water or oil-water mixture is less than 25mL, it can be used continuously, otherwise, check whether the gray block and rubber sealing ring are damaged.
Water leakage failure of submersible pump
Most of the water leakage failures of submersible pumps are caused by the aging and wear of the sealing device. In addition to replacing the new seals, the following simple troubleshooting methods can also be adopted
The sealing ring of the submersible pump loses its elasticity due to long-term use. At this time, the sealing ring can be taken out, and another piece of paper or cloth with a thickness of 0.3 to 0.5 mm is cut into a pad slightly larger than the original sealing ring and installed in the groove. Install the original sealing ring.
The rubber seal ring in the nylon seal seat of the submersible pump is worn out. The seal ring can be taken out and installed again. If the fastening spring on the seal ring loses elasticity or breaks, the spring can be removed and tied with a steel wire or iron wire of appropriate diameter tight.
If the first sealing ring of the submersible pump is severely worn, take out the nylon sealing ring, apply buttered asbestos rope, wrap it on the stainless steel sleeve and fill it up to slightly higher than the original nylon seat, then fill it with butter, and then tighten the nylon seat with bolts Compaction.
The sealing ring between the submersible pump sealing box and the cast iron loses its elasticity. You can take the sealing ring out of the cast iron groove, find a hard paper shell with a thickness of 0.6 to 1 mm, cut it into the same size, pad it in the groove, and then seal it Circle into it.
If the rubber sealing ring of the oil hole of the submersible pump is damaged, you can find a piece of tape, cut it into a hole slightly larger than the bolt, add a flat washer on the top, and put it in the bolt oil hole together.
