The main purpose of repairing abnormal noise in high-pressure diaphragm pumps is to diagnose and solve the problem of abnormal noise generated during the operation of high-pressure diaphragm pumps. Abnormal noise may be caused by various reasons, including improper installation, internal component wear, pipeline problems, etc.
Specific steps and methods for maintenance
Check installation: If the pump is being used for the first time, it is recommended to check if the installation meets the standards, if shock absorbers are installed, and if the connecting nuts are loose.
Check internal components: If the pump has been used for a long time, it may be due to internal component wear, such as unbalanced electric rotor, worn bearings, bent push rod, poor coupling, etc. At this point, it is necessary to inspect and replace worn components.
Check the pipeline and compressed air: Ensure that the pipeline is intact, the compressed air is pure and free of impurities, and avoid abnormal noise and ineffective pump operation caused by impurities.
Motor noise: Motor noise may be caused by motor bearing failure, wear of transmission components, or loose connections. The solution includes replacing worn bearings, gears, or re fixing connections.
Noise sources and common problems
Motor noise: Changes in motor speed, power, and pressure can all affect noise.
Diaphragm noise: The noise generated by the vibration of the diaphragm inside the pump body is affected by the diaphragm material, thickness, and elasticity.
Pipeline noise: The flow of fluid in the pipeline can also generate noise, and the length, diameter, and bending angle of the pipeline have an impact on the noise.
Preventive maintenance recommendations
Regular inspection: Check the elasticity and sealing of the diaphragm every month, and clean the valve group every quarter.
When the medium contains particles, increase the maintenance frequency of the inlet filter.
Preventive replacement
Diaphragm: Replace every 6-12 months depending on the corrosiveness of the medium.
Valve ball/seat: Replace every 1-2 years or when significant wear occurs.
Operation optimization: Avoid dry operation and rinse the pump chamber with clean water before shutdown (for media that are prone to crystallization). Control the working pressure within the rated range to avoid overload.