What are the reasons for wear of the pump efficiency ring in mechanical seal pumps?

The pump efficiency ring is installed on the shaft sleeve, with a certain gap from the seal housing, and it is responsible for driving the circulation of the sealing fluid. Check whether the medium contains oily particulate impurities or similar substances, which entered the sealing fluid after the rice cooking function stopped working

The wear of the pump efficiency ring in a mechanical seal is usually caused by the following factors: 1. Unbalanced axial force: If the axial force on the pump is unbalanced, it will result in uneven gaps between the pump efficiency ring and the pump casing, thereby increasing wear on one side. 2. Axle deflection or bending: An uneven or unbalanced axle can cause abnormal contact wear between the pump efficiency ring and the pump casing. 3. Bearing wear: Excessive wear of the bearings can cause the shaft to shift, which in turn leads to uneven wear of the mechanical seal. 4. Vibration issues: Vibration during the operation of the equipment can lead to instability in the mechanical seal, thereby increasing wear on the pump efficiency ring. 5. Part wear or deformation: The parts of the pump casing or the mechanical seal itself may wear out or deform due to long-term use, which can also lead to abnormal wear. 6. Improper equipment installation: If the pump is not installed correctly, such as with loose anchor bolts or an unstable foundation, this can also lead to damage to the mechanical seal. 7. Improper operating parameters: Issues such as excessive or insufficient pump flow, as well as excessively high or low operating temperatures, can all lead to abnormal wear of the pump’s components. 8. Solid particles in the medium: If the medium contains solid particles with abrasive properties, these particles can cause scratches on the friction surfaces of the mechanical seal, leading to wear. 9. Poor working environment: Elements such as dust and corrosive gases in the environment can accelerate wear and tear. Methods to determine the cause of wear in the pump efficiency ring: 1. Check the condition of the shaft and bearings: By examining whether there is abnormal wear or misalignment in the shaft and bearings, it is possible to determine if these issues are causing the wear of the mechanical seal. 2. Check the installation quality of the mechanical seal: Verify that it has been installed in accordance with the specified requirements, including proper alignment, appropriate tightening torque, and correct installation sequence. 3. Analyze the medium composition: Check whether the medium contains solid particles with abrasive properties or substances that are corrosive to the materials of the pump’s efficiency ring. 4. Check vibration and noise data: By analyzing the vibration and noise data of the equipment, it is possible to detect any abnormal vibrations, thereby determining the cause of wear. 5. Observe the wear pattern: The pattern of wear (such as whether it is uniform, the locations of wear, etc.) can provide clues regarding the causes of wear. By combining these inspections and analyses, it is possible to more accurately determine the causes of frictional wear in the pump efficiency ring and the pump casing, and take appropriate measures to resolve the issues. .

Factors such as mechanical impurities in the materials, assembly gaps, bearing wear, and frequent startups. For reference.

I’m also wondering now if the shaft is bent; it needs to be checked:o

First, look at the worn surface: if it is the side surface, it is related to the axial force; if it is the outer surface, it is related to the radial force； Next is the condition inspection, as there are several wear-prone parts in the pump; by checking for wear on the ring seals, shaft sleeves, and bearings, it is possible to determine whether the issue is related to the entire pump or just a specific part of it~