Induced draft fan at the boiler continuous conveying air, the bearing will appear abnormally elevated temperature fault, the analysts believe, cause the bearing temperature main reasons: insufficient cooling, bearing anomalies, poor lubrication.

Induced draft fan runs at work, it needs to cool the bearing cooling with cooling water, but extends to the interior of the cooling water pipe boiler room, boiler room temperature leads to the cooling water temperature and Germany also improved, which reduces to a certain extent, Bearing cooling effect. It may occur after peeling bearing long-term operation, the gap increases, when these factors are likely to lead to high-speed operation bearing temperature.

Induced draft fan bearing seven water ferrous sulfate will smear some oil, which is to reduce friction between the bearings, but bearing in high speed process of the oil consumption is more serious, due to long working hours after lubricating bearings reducing oil and frictions.

Also when the draft fan will work a lot of water into the internal components of the induced draft fan, water will damage the bearing surface smear film, and the film is lubricating oil to reduce the damage caused when bearing long-term operating temperature is too high, even burn.

Induced draft fan bearing temperature is too high, you want to schedule to the induced draft fan bearings lubricated to avoid insufficient lubricating oil supply and increasing friction between the bearings in the refueling process should pay attention to the amount for refueling, add oil through much can also lead to high bearing temperatures; increase the cooling water pressure to ensure the cooling water temperature, can be considered outside of the cooling water pipe insulation package, but also can install cooling fans, air cooled.