Effective Noise Control Measures for Centrifugal Fans

Is your fan noise disturbing the surroundings? Don’t just tolerate it—tackle both the source and the transmission path for a quieter, more efficient solution.

1. Optimize Structure to Reduce Noise at the Source
   Choose low-noise backward-curved impellers and optimize the volute design to minimize aerodynamic noise caused by turbulence.
2. Install Silencers at Inlet and Outlet
   Add silencers at the air inlet and outlet to reduce airflow noise—especially effective for environments with strict noise requirements.
3. Add an Acoustic Enclosure
   For high-power, high-speed fans, installing a soundproof enclosure helps block airborne noise from spreading.
4. Vibration Isolation to Block Structure-Borne Noise
   Use vibration isolators on the base and flexible joints in duct connections to cut off vibration transmission.
5. Operate Scientifically to Control Noise
   Avoid surge conditions and use variable frequency drives (VFDs) to keep the fan running in a low-noise, high-efficiency range—quieter and more energy-efficient.
6. Regular Maintenance to Eliminate Abnormal Noise
   Clean dust buildup on the impeller and replace worn bearings and belts in time to prevent noise caused by equipment deterioration.

Combine multiple measures for systematic noise reduction and create a quieter, more comfortable environment.

Still struggling with fan noise? Contact us—We will help you customize a noise reduction solution!