Title: Analysis of the causes and treatment methods of centrifugal pump shaft holding.
Introduction: As a commonly used fluid transfer equipment in industrial production, the operation stability of centrifugal pump directly affects the production efficiency and equipment life. Shaft gripping is one of the common problems in the operation of centrifugal pumps, this article will analyze the reasons for centrifugal pump shaft gripping and the corresponding treatment methods.
First, the reason why the centrifugal pump holds the shaft.
1.Insufficient lubricating oil: lubricating oil is an important condition to ensure the normal operation of the bearing, if the lubricating oil is insufficient, it will lead to an increase in bearing friction and an increase in temperature, which will cause the shaft to be held.
2.Deterioration, emulsification or impurities in the lubricating oil: The lubricating oil may be contaminated, deteriorated or emulsified during use, which can reduce the lubrication effect, lead to increased bearing wear and eventually lead to shaft gripping.
3.Cooling water interruption: The function of cooling water is to reduce the temperature of the bearing, if the cooling water is interrupted, the bearing can not effectively dissipate heat, and the temperature rises, which may lead to the shaft holding.
4.Bearing damage: Bearings may suffer from wear and fatigue during long-term use, and damaged bearings cannot work properly, resulting in shaft holding.
5.Water stringing in the bearing box: If the bearing box is poorly sealed, the phenomenon of water stringing may occur, and the moisture enters the lubricating oil, destroys the lubricating film, causes bearing wear, and eventually leads to the shaft holding.
Second, the centrifugal pump shaft handling method.
1.Stop the pump immediately: Once the centrifugal pump is found to be holding the shaft, the pump should be stopped immediately to avoid further deterioration of the problem.
2.Switching to a standby pump: After the pump is stopped, it should be switched to a standby pump in time to ensure the continuity of the production process.
3.Contact the manufacturer's after-sales service: Since the problem of holding the shaft may involve the maintenance of the internal structure of the equipment, it is recommended to contact the manufacturer's after-sales technicians for professional inspection and maintenance.
4.Check the lubricating oil system: check the quantity and quality of the lubricating oil, replenish or replace the lubricating oil in time to ensure that the lubricating oil system works normally.
5.Check the cooling water system: Ensure that the cooling water system is operating properly and prevent the cooling water from being interrupted.
6.Check the sealing of the bearing housing: check the sealing of the bearing box and replace the seal if necessary to prevent the occurrence of water stringing.
7.Regular maintenance: Regularly maintain the centrifugal pump, check the wear and tear of key components such as bearings, and replace damaged parts in time.
III. Conclusion. Centrifugal pump shaft gripping is a common fault in equipment operation, and understanding its causes and correct treatment methods is crucial to ensure production safety and improve equipment efficiency. Through measures such as stopping the pump in time, switching the standby pump, contacting the manufacturer for after-sales and regular maintenance, the problem of centrifugal pump shaft holding can be effectively prevented and solved, and the safe and stable operation of the centrifugal pump can be ensured.