Fans often generate noise during operation, which brings us trouble. Usually, the noise of the fan is mainly due to the destruction of the impeller balance. As long as we adjust it, the problem can be solved. However, due to the different structures of axial flow smoke exhaust fans, the reasons for noise are also different.

Axial flow smoke exhaust fans need to be stopped and checked immediately when abnormal noise occurs during operation. The main reasons are summarized as follows:

1. The selected fan lubricating oil does not match, so friction occurs;

2. Debris enters the fan, which will generate noise during the operation of the fan;

3. Noise caused by bearing wear and cracking;

4. Noise generated by the friction between the rotor and the casing;

5. The coupling key is loose;

The axial flow smoke exhaust fan structure is equipped with a noise reduction setting, so it usually does not generate noise during operation. Once there is a large noise, it needs to be stopped and checked immediately. The above are several reasons why axial flow smoke exhaust fans generate noise. I hope it will be helpful to everyone. More knowledge will continue to be summarized for you.

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