One: Small repair
1: For the fall and vibration of some external brackets, check the bolts and basic bolts of each part of the centrifugal fan, and strengthen it.
2: Adjust the gap between the bearing and the fan case, the bearing box, and the oil label of the centrifugal fan. This is one of the common compositions of small maintenance.
3: The operating condition between the axle of the centrifugal fan and the connection pump is abnormal, and it is adjusted and repaired.
4: The overall replacement and anti -corrosion treatment of the centrifugal fan blade.
5: Small maintenance basically does not need to be disassembled in some parts in the fan room. If you analyze it according to the structure of the fan, it belongs to some external repair.
Two: major maintenance
The large maintenance of centrifugal fans is a total of the general term that the fan cannot start, the air volume of the fan becomes smaller, and other abnormalities in the fans need to be repaired.
1: Bearing, shaft sleeve, impeller, pump shell, pump cover, corrosion and gas corrosion, replace and repair these parts. Such parts need to be comprehensively disassembled before it can be performed.The use performance will overall this certain difficulty.
2: Replace the axis, film and reinforcement screws of the centrifugal fan. Sometimes the precision parts of oil sealing, pads and pumps need to be adjusted and replaced.For professional personnel, general users must not replace them without permission.
3: The overhaul of the centrifugal fan also includes the mechanical rotation site and the bearing composition.After completing various operations, if necessary, it is necessary to test it according to the professional test instrument, and then check and use it before ensuring that the maintenance is completed.Small maintenance will be relatively simple. Even the replacement of parts does not use many technical requirements.
4: The overhaul of the centrifugal fan may be used to use the spare parts and copy the seal parts. These operations are very difficult, and they belong to the category of the overhaul of the fan.
The above is the common maintenance of centrifugal fans