With the more and more extensive use of centrifugal fan, more and more problems are encountered. What's the matter with the abnormal noise of centrifugal fan during operation? Next, the small editor of Hengding fan will answer for you.
1: Cracks, scars or residues penetrate into the rolling bearings of centrifugal fans.
There are many reasons for cracks and scars in rolling bearings, but in a wide range of cases, due to the imbalance of rotor dynamic balance due to the imbalance of impeller, long-term operation will cause bearing deformation.
Solution: remove and replace the rolling bearing and check the balance of the impeller, and check the rotor dynamic balance of the impeller according to the standard.
2: Due to insufficient lubricating grease.
The lack of lubricating grease is an important factor endangering the oil permeability and solubility of rolling bearings. The oil leakage of bearing with seat is extensive, and regular maintenance or seat inspection must be carried out before starting every day.
Solution: check regularly and add lubricating grease to the center point.
3: The fastening nut of the workpiece of the centrifugal fan is loose.
After long-term application of centrifugal fan, vibration is inevitable. Therefore, certain effective measures must be taken immediately to avoid loosening of the nut of centrifugal fan.
Solution: clamp again.
4: The centrifugal impeller rubs against the air inlet or casing.
The rotor dynamic balance of the impeller is given. Due to the imbalance of the impeller, the long-term operation will cause the deformation of the bearing and the friction or impact between the impeller and the outside. In this case, the machine should be shut down and serviced.
Solution: maintain, adjust and check whether there are problems in the rolling bearing and repair it in time.
5: The centrifugal fan sucks dirt.
When the dirt is sucked in by the centrifugal fan, please turn it off for removal. During the operation of centrifugal fan, the long-term dirt will damage the impeller of centrifugal fan.
Solution: clean and remove dirt in time.
6: Poor pipeline system software and excessive wind force.
There is a noise in the pipeline, which is often called wheezing. You can check whether there is a problem in the connecting part between the centrifugal fan impeller and the pipe. If not, you will have to update the piping system.
Solution: upgrade and transform the piping system.
In case of noise during the use of centrifugal fan, everyone should shut down as soon as possible to carry out inventory; Long term noise will endanger the service life of centrifugal fan; Regular maintenance of centrifugal fan impeller is a simple and specific method to improve the efficiency of centrifugal fan.
