The relationship between pump damage and process usage.
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Some time ago, I participated in a technical seminar organized internally by the company. The topic was quite simple, yet the content was very profound; it revolved around how to determine whether it’s the process that causes damage to pumps and other machinery. ? ? ? ? ? ? Can anyone tell me?
For different problems requiring different analyses, the elimination method is necessary.
By elimination, once the issues related to maintenance quality and spare parts quality are ruled out, what remains are operational problems.
So the question is,,, the pump has been damaged – how can it be fixed?
Check logs, inspection records, and records of central control system parameter adjustments
Beautiful,,,, How to analyze the parameter records of the central control system?
In the case of an acute condition, there will definitely be fluctuations in outlet pressure and flow rate; whereas in the case of a chronic disease, a large amount of data is required for analysis
There is a prerequisite: a clear and definite understanding of the product’s quality, reliability, and susceptibility to damage. In other words, one must have confidence in the functions and quality of their own products before it is possible to properly determine the causes of equipment damage under various operating conditions. Otherwise, when product quality and manufacturing processes are mixed together, it becomes difficult to distinguish between them, leading to attempts to shift responsibility, excuses, and arguments
The signs of damage to the pump components can also be used to determine whether the issue is due to the quality of the pump itself or improper use. .
Hello, sir,… how should we proceed in making a further judgment on this? Could you be more specific?
Major overhaul of a single-stage centrifugal pump: due to increased vibration, the impeller (fully closed single-suction type) was replaced, as well as the bearings at the drive and free ends. Dynamic balancing was carried out; the pump shaft’s runout, bearing play, and all other parameters were within acceptable limits. The alignment was within 0.05 units. After being put back into operation, the vibration level was 4.2. The water used was clean, the anchor bolts were not loose, and all process valves were fully open. The cause of the vibration could not be determined