The main muffler accessories of the fan include inlet muffler and outlet muffler, as well as the commonly used exhaust muffler. These silencers have obvious noise reduction effect on fans.
2. Soundproof coat
Customize a set of sound insulation clothing for the fan separately, and wear it outside the fan to reduce noise.
3. Install the anechoic chamber.
Also known as the fan soundproof cover, placing the fan in the anechoic room can cut off the transmission path of noise and play an effective role in noise reduction. And the market price is cheap and easy to buy.
4. Replace the fan type
The effective methods of noise reduction can be multi-stage centrifugal single-stage high-speed centrifugal fan or magnetic levitation fan, but the prices of these models are relatively high.
5. Set up a computer room
If conditions permit, the manufacturer can set up a separate cement fan room for fans to work in, and make a vent in the room to ensure air circulation. This method can effectively reduce noise pollution.
6, submersible fan (aquaculture, water treatment)
Because the submersible fan is placed in the water, the sound is refracted into the water at the interface between air and water, not into the air. At the same time, the water and the tank wall are also refracted back to achieve the effect of noise reduction, and there is no need to make a sound insulation cover or a sound insulation workshop.