During the operation of the water pump, it can transfer mechanical energy and other external energy to the liquid, thereby increasing the energy in the liquid. Positive displacement pumps and vane pumps are both types of water pumps. Positive displacement pumps transfer energy through changes in working chamber volume, while vane pumps transfer energy through the force between rotating blades and liquid. In addition, there are centrifugal pumps, axial flow pumps, and other types of water pumps.
The development direction of water pump devices is to improve work efficiency and reduce energy consumption. Most of the time, large water pumps can be used to replace multiple small water pumps for operation, which not only improves unit efficiency but also saves equipment materials. So compared to small water pumps, the development speed of large axial flow pumps, mixed flow pumps and other water pumps is faster. However, during the operation of the water pump, the quality of maintenance and troubleshooting is related to its service life and work efficiency, so the inspection and maintenance of the water pump are very important.
Next, let me introduce the maintenance types of water pumps:
(1) Fault maintenance
The maintenance of water pump faults is a remedial maintenance measure. During the maintenance process, it is necessary to remove the faulty parts of the water pump and ensure the continued operation of the water pump equipment through component repair, replacement, and other methods. However, the drawback of fault maintenance is that the maintenance time is relatively long and the maintenance cost is high. Moreover, after the water pump malfunctions, it may also have an impact on other components of the water pump, making it easy to discover another fault before it is completely resolved. Therefore, the overall efficiency of pump malfunction maintenance is low, and efforts should be made to avoid such situations as much as possible.
(2) Preventive maintenance
Preventive maintenance is usually carried out regularly by maintenance personnel of water pump equipment, who will perform regular maintenance according to the maintenance schedule of the water pump. This maintenance method can usually detect potential faults in the water pump equipment in advance before the equipment malfunctions, and by performing maintenance in advance before faults occur, the maintenance cost of the water pump can be reduced. The use of preventive maintenance can effectively save resources, but if the schedule is not properly arranged, it can lead to unnecessary maintenance, and an increase in the number of disassembly of water pump equipment will also cause a decline in water pump accuracy.
(3) Predictive maintenance
Predictive maintenance of water pumps usually focuses on equipment monitoring. Maintenance personnel observe the working status of the water pump equipment during operation to determine if there are any problems with the water pump. If abnormal vibrations, sounds, or abnormal working parameters are found during the monitoring process, the water pump needs to be shut down for maintenance to avoid serious accidents. The prerequisite for this maintenance method is that the maintenance personnel have sufficient skills and experience, so as to accurately determine whether there are any abnormalities in the working status of the water pump during operation. The difficulty of this maintenance lies in the shortage of experienced maintenance personnel and the difficulty of real-time monitoring of every operating device.
(4) Proactive maintenance
Proactive maintenance of water pumps refers to equipment maintenance after identifying the cause of the accident. This maintenance method requires the existing problems of the water pump to be rectified and redesigned during the implementation process, in order to comprehensively eliminate the faults of the water pump equipment. This maintenance plan, combined with predictive maintenance, can significantly extend the service life of the water pump and reduce its maintenance costs. But at the same time, this redesign may not achieve the expected results.
There are also some other details to maintain, as follows:
Firstly, maintenance personnel need to regularly inspect the brackets and promptly address any looseness or rust in the pipeline brackets.
Secondly, regularly check the equipment maintenance records.
Thirdly, water pumps that are used relatively infrequently need to be tested monthly.
Fourthly, it is necessary to strengthen the anti freezing treatment of water pumps before winter to avoid valve and pipeline cracking in cold weather.
Fifth, determine the disassembly inspection cycle of the water pump and develop a detailed water pump maintenance plan before disassembly inspection.
