This type of equipment relies on atmospheric pressure to raise the water level; its operation depends primarily on the movement of a piston, making the piston a critical component for the product's performance. Corrosion-resistant submersible pumps can be categorized into centrifugal pumps, axial-flow pumps, mixed-flow pumps, and screw pumps. As the user base grows, manufacturers should place greater emphasis on analyzing and improving upon product malfunctions. The following section outlines the causes of and troubleshooting methods for corrosion-resistant submersible pump failures.
Causes and Troubleshooting for Corrosion-Resistant Submersible Pump Failures
1. Failure: Slow priming (slow water uptake). Causes: Excessive clearance between the front liner and the impeller; discharge pipeline fails to seal against air ingress; air not fully vented. Solutions: Adjust clearance; adjust discharge pipeline; install a vacuum extraction device.
2. Failure: Low discharge pressure and flow rate. Causes: Air trapped inside the pump; excessive clearance between the impeller and front liner; loose clutch engagement; worn impeller or liner. Solutions: Vent air from the pump; adjust clearance; adjust clutch friction plate clearance; replace impeller or liner.
3. Failure: Rapid pump wear. Causes: Poor operating environment (large particles); long transport distance; long intake pipeline. Solutions: Change the extraction site; add a booster unit; shorten the intake pipeline to reduce cavitation.
4. Failure: Pump vibration. Causes: Misalignment between pump shaft and diesel engine (or motor); impeller imbalance; damaged bearings. Solutions: Adjust alignment; perform impeller balancing test; replace bearings.
5. Failure: Pump fails to draw water. Causes: Insufficient priming water; air trapped inside pump; air leak in suction pipeline; excessive clearance between front liner and impeller. Solutions: Continue priming; check pipeline for leaks; adjust clearance between impeller and front liner.
6. Failure: Rapid wear of impeller shaft journal. Causes: Low head of high-pressure water pump; misaligned packing; misalignment between pump shaft and rear cover. Troubleshooting methods: Replace the unit with a high-pressure pump offering a higher head than the existing corrosion-resistant submersible pump; replace the gland packing; or adjust the concentricity.
Equipment operation is rarely without challenges; users should adopt the spirit of a navigator—pressing forward despite the wind and waves. Users will inevitably encounter issues when operating corrosion-resistant submersible pumps. However, by applying our ingenuity and creativity, we can resolve any malfunctions or problems that arise—though this also requires the assistance of suppliers and professional technical experts.
We hope this proves helpful to you.
Please stay tuned to