Centrifugal fan is a type of driven fluid machinery that relies on input machinery to increase gas pressure and discharge gas. In order to better control centrifugal fans, we need to master the common problems and preventive measures of centrifugal fans. So, what are the issues that are easily overlooked when using centrifugal fans? Let's take a look together.

The temperature of the bearing shell of the centrifugal fan shall not exceed 65 ℃. If the temperature of the bearing shell exceeds 70 ℃, immediately stop checking whether the surface of the bearing shell is worn and scratched. The contact points on the surface of the bearing shell should reach 2-3 points/cm2. The return oil temperature of the centrifugal fan bearing should be 50-60 ℃. If it exceeds 65 ℃, the bearing temperature may overheat; If the temperature is below 40 ℃, the gap between the bearing shells may be too large. The water pressure of the oil cooler should be lower than the oil pressure to prevent cooling water from leaking into the lubricating oil and causing the oil to deteriorate. Regularly check whether there are oil droplets in the cooling water of the centrifugal fan. If there are oil droplets, quickly switch to the backup cooler and replace the leaking cooler core.