After replacing the main fan impeller during routine maintenance, the system pressure fluctuates significantly frequently
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During routine maintenance a few days ago, the impeller of the main conversion fan was mainly replaced. After the system was put back into operation, there were significant and frequent fluctuations in both the negative pressure and positive pressure levels of the system. The inspection revealed that the current of the internal injection pump was low; it was assumed that this was caused by an issue with the amount of acid applied. After switching to the backup pump, the current returned to normal, but the problem persisted. Seeking advice from experts
It must be that the blades are unbalanced!
Internal injection pump? Acid dosage? Is this still a fan?
Check for any areas where liquid may be hanging: adjust the air volume of the fans at the front and back.
Upon close inspection of the dry absorption towers, if there are unusual noises inside the towers and the resistance in one of them increases, it is very likely that flooding is occurring