Causes and troubleshooting methods of corrosion resistant submerged pumps
1. Pump filling slow
Reason: There is a large gap between the front lining plate and the impeller, the water outlet pipe cannot seal the air, and the exhaust is full.
Solution: Adjust the gap, adjust the water outlet pipeline, and install a vacuum pumping device.
2. Low outlet pressure and flow rate
Reason: There is air inside the pump, there is a large gap between the impeller and the front lining plate,
the clutch is not tightly closed, and the impeller or lining plate is worn.
Solution: Empty the gas inside the pump, adjust the clearance, adjust the clearance of the clutch friction plate, and replace the impeller or lining plate.
3. Pump wear is fast
Reason: Poor construction environment (large particles), long transportation distance, and long inlet pipeline.
Solution: Replace the sand field, add an afterburner unit, shorten the length of the inlet pipe, and reduce cavitation.
4. Water pump vibration
Reason: The pump shaft is not concentric with the diesel engine (or motor), the impeller is unbalanced, and the bearings are damaged.
Solution: Adjust the concentricity, conduct balance testing on the impeller, and replace the bearings.
5. Pump does not absorb water
Reason: Insufficient water injection, inability to discharge air from the pump, leakage in the suction pipe, and large gap between the front lining plate and the impeller.
Solution: Continue to inject water, check for air leakage in the pipeline, and adjust the clearance between the impeller and the front lining plate.
6. The impeller journal wears quickly
Reason: Low head of high-pressure water pump, misalignment of packing, and misalignment between pump shaft and rear cover.
Solution: Replace the high-pressure pump with a head higher than that of the corrosion-resistant submerged pump, replace the packing, and adjust the concentricity.
