Analysis of the reasons for the large vibration of centrifugal blower

Centrifugal blowers are widely used in industrial production for ventilation, dust removal, gas transportation, and other fields. However, during use, centrifugal blowers may experience significant vibration, which can affect their normal operation and service life. This article will analyze the reasons for the large vibration of centrifugal blowers and propose corresponding solutions.

1、 Bearing damage

Bearings are important components of centrifugal blowers, and their damage is one of the common causes of high vibration. Bearing damage may be caused by long-term use, poor lubrication, foreign objects entering, and other reasons. Bearing damage can cause unstable operation of the blower, resulting in significant vibration.

2、 Unbalanced impeller

Unbalanced impeller is another important reason for the high vibration of centrifugal blowers. The imbalance of the impeller may be caused by manufacturing errors, wear, corrosion, and other reasons. Unbalanced impellers can cause centrifugal force imbalance in the operation of the blower, leading to vibration.

3、 The foundation is not solid enough

The unstable foundation of a centrifugal blower can also lead to excessive vibration. If the foundation is loose or settled, it will cause additional vibration during the operation of the blower. In addition, a weak foundation may also cause changes in the installation position of the blower, further exacerbating vibration.

4、 Poor alignment of motor and blower coupling

Poor alignment between the motor and blower coupling is also one of the reasons for high vibration. If the coupling is not aligned properly, it will cause relative displacement between the motor and the blower during operation, resulting in vibration.

5、 Pipeline vibration transmission

If there is vibration in the pipeline system where the centrifugal blower is located, it will also be transmitted to the blower, causing an increase in its vibration. Pipeline vibration may be caused by unstable pipeline support, fluid impact, and other reasons.

In summary, the main reasons for the high vibration of centrifugal blowers include bearing damage, impeller imbalance, unstable foundation, poor alignment of motor and blower coupling, and transmission of pipeline vibration. Corresponding solutions should be taken for these reasons, such as replacing damaged bearings, correcting impeller balance, reinforcing foundations, adjusting coupling alignment, and optimizing pipeline support, to ensure the normal operation and service life of centrifugal blowers.