When the boiler fan is running, due to the negative pressure generated by the blower in the soundproof room, a large amount of fresh outdoor air will automatically enter the soundproof room. Firstly, it exchanges heat with the induced draft fan motor to cool it down and maintain the indoor temperature at around 50 ℃. So, what is the reason for the high temperature of the fan bearings? Next, the editor from Guangdong Association Fan Manufacturers will provide a detailed introduction to you:

1. The high temperature rise of the boiler fan bearings is likely caused by severe vibration of the casing. The shaft of the boiler fan is inclined, and the bearings are inclined inside the bearing package, resulting in high temperature of the fan bearings during operation. The reason for this is that the installation and maintenance quality of the fan is not high, and the bearings operate at the critical edge that allows for angle adjustment.

2. When the lubricant quality is poor, deteriorates, or contains impurities such as dust, sand, dirt, or insufficient filling, or the tightening force of the bearing box cover and seat connecting bolts is too large or too small, it can also cause such problems;

3. The bearing package of the boiler fan was not filled with the specified grease according to the standard. In general, job personnel are concerned that the fan may lack oil and cause bearing damage. When adding too much oil, the phenomenon is that the temperature continues to rise. After reaching a certain point (usually around 10-15 ℃ higher than normal operating temperature), it will remain unchanged and then gradually decrease.

4. The abnormal bearing of the boiler fan caused the bearing to heat up. One of the factors affecting the temperature of fan bearings is the installation deviation of the shaft and rolling bearings, the misalignment of the front and rear bearings, and the damage or bending of the fan rolling bearings.