It is normal for the anticorrosive centrifugal fan to vibrate during operation. If the vibration is too loud or the sound is abnormal, the anticorrosive centrifugal fan may malfunction. This may be an imbalance of the components, or it may be a deviation of the structure, so how should we solve this situation in normal times? Let's take a look at it in detail below:
(1) Replace the lubricating oil. The purpose of replacing No. 46 turbine oil with No. 46 engine oil is to increase the viscosity of the lubricating oil, so that more oil can be brought in when the slinger rotates. However, at high temperatures, the viscosity of mechanical oil drops more than the viscosity of turbine oil. But the experiment proved that the effect is not obvious.
(2) Deepen the imported oil bag of the anticorrosive centrifugal fan bearing bush. The purpose of increasing the circulation speed of the shaft lubrication and cooling oil is to increase the oil sac on the oil outlet side and open a mesh oil groove on the tile surface. The above measures did not play a decisive role.
(3) Improve the slinger ring. Open a shallow groove in the rough oil sling surface and several shallow oil grooves on the side of the oil sling ring. This measure has both positive and negative effects. The positive effect is to help the oil slinger ring to store oil when rotating, thereby increasing the oil carrying capacity. The negative effect is that the fuel tank becomes deeper, and the proportion of fuel in the fuel volume is reduced.
(4) Increase the amount of lubricating oil. The actual height of the oil level is below the lower tile surface, which alleviates the oil film damage, but the oil level is too high, which makes the local heat transfer effect worse, and the temperature is too high during equilibrium, which increases the risk.
The above briefly introduces the treatment method of the abnormal vibration of the anti-corrosion centrifugal fan. In the future, if you encounter this situation, you can choose the appropriate method to solve the problem according to the actual situation. I hope it will help you.