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Unplanned shutdowns caused by fan malfunctions result in losses of hundreds of millions of yuan for enterprises every year. Scientific maintenance is of vital importance. Vibration analysis shows that poor dynamic balance of the impeller accounts for 32% of the causes of faults, and the dynamic balance accuracy can be improved to ISO G2.5 grade through laser tool setting technology.
For the problem of bearing overheating, the adoption of the grease life prediction model can extend the replacement cycle from 6,000 hours to 12,000 hours. In terms of anti-corrosion, the corrosion resistance of duplex stainless steel impellers in acidic gas environments is five times higher than that of ordinary stainless steel.
It is suggested that enterprises establish a full life cycle management system based on PHM (prognostics and health management).
