There may be the following reasons for the noise of the pipe disk:
1. Noise generated by the blade back: When the blades are rotated, interact with the air to produce friction and impact, thereby generating noise.The frequency of noise is composed of multiple frequencies, which is related to the speed of the fan.
2. turbulence and vortex of air flow: When the airflow pass through the leaves, turbulence and vortex may cause air dynamic noise.
3. The vibration and mechanical noise of the fan motor: The motor will produce vibration during work. These vibrations will be transmitted through the fan structure, causing mechanical noise to produce.
4. Fan structure resonance and acoustic circuit effect: The fan structure may have resonance phenomena. When the resonance frequency matches the fan frequency, it will cause noise to magnify.In addition, the environment around the fan may also form acoustic circuit effects to reflect and amplify noise.
5. Inlet of air inlets before the air inlets or metal mesh cover, the air intake interference noise is generated.
6. The rotation frequency noise generated in the shell does not smooth or asymmetric case.
7. Export interference noise generated by the existence of the guidelines after the axial fans.
8. Discrete noise has the characteristics of discrete spectrum. The noise of the base frequency (the corresponding frequency) at the base frequency (I = 1) is reduced.
These factors may cause the noise of the axial flow ventilator pipe disk noise.In order to reduce noise, a series of measures can be taken, such as optimizing fan design, improving motor vibration, and increasing mucoping equipment.In addition, regular maintenance and inspection are one of the key measures to ensure the normal operation and reducing noise of the fan.
The above is the reason for the noise of the axial flow fan. I hope it will be helpful to you.If you want to know more about related information, please pay more attention to us--