Causes of Centrifugal Fan Vibration:

1. The cement foundation of the fan is too light or the foundation’s surface dimensions are too small, leading to unstable support.
2. The base and volute of the centrifugal induced draft fan lack sufficient stiffness and cannot effectively absorb vibrations.
3. The anchor bolts of the fan are loose, or the connection between the fan base and the foundation is not secure, causing equipment vibrations.
4. The inlet and outlet pipelines of the fan are not supported or have no flexible connections, or the foundations of other equipment are too close to the centrifugal induced draft fan’s foundation, leading to resonance or instability.

Corresponding Solutions:

1. Strengthen the stability of the fan foundation; if necessary, re-grout or reinforce the foundation.
2. Increase the stiffness of the fan base and volute to improve vibration resistance.
3. Tighten the anchor bolts to ensure the base connection is firm and reliable.
4. Install supports or flexible connections on the inlet and outlet pipelines to reduce vibration transmission. Additionally, increase the distance between the foundations of other equipment and the centrifugal induced draft fan’s foundation to avoid resonance issues.