Causes of flange damage in DFP self-balancing salt mine brine pumps

Category: Water pump knowledge

2025-07-23

As a crucial piece of equipment in salt mine extraction, the DFP self-balancing salt mine brine pump's proper operation is vital for production efficiency and safety. However, flange damage is a common issue during its use; the reasons for this phenomenon are analyzed below.

I. Improper Operation

During operation, if operators fail to follow the correct procedures and regulations, it may cause excessive pressure or shear force on the flange, leading to damage. For example, insufficient preheating when starting the pump or improper parameter adjustment during operation.

II. Material Quality Issues

The quality of the flange material directly affects its durability and damage resistance. If the material itself has defects, such as inclusions or pores, or if the material's strength and toughness are insufficient, it may lead to easy flange damage during use.

III. Chemical Corrosion

The medium handled by the salt mine brine pump often has high salinity and other corrosive components. These substances will chemically corrode the flange, leading to a decline in material properties over time and making it prone to corrosion damage.

IV. Wear and Tear

During pump operation, the flange may experience friction and wear with other components, especially under high load and high-speed operation, where this wear will be more severe. Long-term wear will cause the flange to thin and reduce its strength.

V. Overload and Fatigue

If the pump operates under overload for a long time, the flange will experience excessive stress, causing fatigue and eventually leading to fracture or damage. In addition, frequent starts and stops will increase the fatigue load on the flange.

VI. Insufficient Maintenance and Inspection

If the pump is not regularly maintained and inspected, abnormal conditions of the flange may not be detected and addressed in time. For example, loose fastening bolts at the flange connection or cracks on the flange surface, which will accumulate over time and lead to serious damage.

In summary, the causes of flange damage in DFP self-balancing salt mine brine pumps involve multiple aspects, including operation, materials, chemical corrosion, wear, overload fatigue, and maintenance and inspection. To ensure production safety and efficiency, these issues must be taken seriously, and appropriate preventive measures and regular maintenance should be implemented to reduce the occurrence of flange damage.

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