Maintenance and repair of multistage pumps in the petrochemical industry

Category: Water pump knowledge

2025-08-06

Multistage pumps in the petrochemical industry, due to their special working environment and operating conditions, require particularly important maintenance. Below is a brief introduction to the maintenance of multistage pumps.

I. Repair

1. Regular Inspection: Regularly check the operating status of the multistage pump, including vibration, noise, and temperature. Stop the pump immediately for inspection if any abnormality is found.

2. Disassembly and Inspection: Disassemble and inspect the multistage pump annually or according to usage. Focus on checking easily worn parts such as impellers, bearings, and sealing rings. Replace any worn or damaged parts promptly.

3. Repairing Damage: Repair or replace worn or damaged parts such as bearings and sealing rings. For impeller wear, repair or replacement can be considered based on the actual situation.

4. Debugging: After repair, debug the multistage pump to ensure its normal operation.

II. Maintenance

1. Maintain Cleanliness: Keep the multistage pump and its surrounding environment clean to prevent debris from entering the pump and affecting its operation.

2. Lubricating Oil: Regularly check and replace the lubricating oil in the bearing chamber to ensure the normal operation of the bearings.

3. Sealing: Check the sealing condition; replace the seals promptly if any leakage is found.

4. Anti-corrosion: Multistage pumps in the petrochemical industry are susceptible to corrosion. Therefore, regular anti-corrosion treatment, such as applying anti-rust paint, should be performed.

5. Maintenance of Idle Pumps: For idle multistage pumps, rotate them regularly to prevent parts from seizing or rusting due to prolonged inactivity.

6. Regular Inspection: In addition to daily inspections, more detailed inspections should be carried out regularly, such as checking pump performance and efficiency.

In actual operation, a more detailed maintenance plan should be developed based on the specific model, usage conditions, etc., of the multistage pump. Additionally, safety precautions should be taken during maintenance to avoid accidents.

In short, the maintenance of multistage pumps in the petrochemical industry is key to ensuring their normal operation and extending their service life. Only through regular maintenance can the stable operation of multistage pumps in the petrochemical industry be ensured, providing strong support for enterprise production.

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