The cleaning and maintenance of centrifugal pump parts includes mechanical external cleaning and part cleaning. Part cleaning can be divided into pre-identification cleaning, pre-assembly cleaning and painting or bonding parts cleaning.
When cleaning centrifugal pump parts, electroplating parts and adhesive parts have the highest cleaning requirements. If the cleaning is not clean, it is usually the cause of coating or bonding failure, and the cleaning quality of the part assembly has a long service life.
Due to serious unqualified cleaning, a large number of abrasives infiltrate into important friction pairs, or because the lubricating oil pipeline is clogged with dirt, resulting in early mechanical wear and accident damage. It must note some irregular maintenance work.
The basic principle of cleaning and cleaning of important parts of centrifugal pump are as follows.
It scraps away the dirt and rust accumulated in the inner and outer surfaces of impellers, sealing rings and bearings, and then cleans and blows with water or compressed air. Clean up the oil and rust accumulated on the joint surface of the shell. Rinse the water seal carefully until it is smooth. Remove oil dirt, and then clean oil ring and oil level meter. Ball bearings are cleaned with gasoline. Parts that have not been assembled for the time being should be oiled after cleaning.
The basic principle of cleaning centrifugal pump parts is that all cleaning methods must fully consider the following basic requirements.
- Ensure that the cleanliness of the parts is met, in the repair, the cleaning requirements of different machine parts are different. In assembly, the cleaning requirement of the fit part is higher than that of the non-fit part, the dynamic fit part is higher than the static fit part, and the precision fit part is higher than the non-precision fit part. For spray, plating, bonded workpiece surface, its cleaning requirements are very high. Different cleaning agents and cleaning methods must be adopted according to different requirements to ensure the required cleaning quality.
- Prevent the corrosion of parts and do not allow any degree of corrosion to precision parts. When the parts of centrifugal pump need to be parked for a period of time, the antirust ability of cleaning solution or other antirust measures should be considered.
- Ensure the safety of operation, prevent fire or poison human body and cause pollution to the environment.