What are the seven elements of operation and maintenance of stainless steel submersible pumps?
1. Stainless steel submersible pumps should be checked at regular intervals (about 1000h). The insulation resistance of the submersible pump should be checked before use. It should be no less than 0.5MΩ. If it does not meet the requirements, it should be dried.
2. Before use, check the cables, switches, and 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 stainless steel submersible pump enters or exits the water, the TSWA type 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 absolutely be pulled.
5. The submersible pump cannot be buried in the river mud. If there are many leather and sundries in the water, you should put the submersible pump in the 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 in operation for 300 hours, it should be checked for sensitive water. If the released water or oil-water mixture is less than 25mL, it can be used continuously, otherwise, check whether the slab and rubber sealing ring are damaged.
Water leakage failure of stainless steel submersible pump
Water leakage failures are mostly 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 loses its elasticity due to long-term use. At this time, you can take out the sealing ring, find a piece of paper or cloth with a thickness of 0.3 to 0.5 mm, cut it into a pad slightly larger than the original sealing ring, and install it in the groove. Seal ring.
The rubber seal ring in the nylon seal seat is worn out. The seal ring can be taken out and then replaced and installed. 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.
If the first seal ring is severely worn, take out the nylon seal ring, then 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 press the nylon seat with bolts to compact it.
The sealing ring between the sealing box and the cast iron loses its elasticity. You can take the sealing ring out of the cast iron groove, find a piece of hard paper with a thickness of 0.6 to 1 mm, cut it into the same size, pad it in the groove, and then put the sealing ring enter.
The rubber sealing ring of the oil hole 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 oil hole of the bolt together.