Cooling tower noise control and reduction
Thread Content
New residential complexes have been built around the company, and there is considerable noise at night; it is initially suspected that the source of this noise is the cooling towers, with the sound coming from the rotation of the fans； Sound of the motor and reducer ； Sounds of water falling, etc. We’ve currently added a collection cover on top, but the results are not satisfactory; originally only the upper floors showed loud reactions, but now even the lower floors are affected. Experts, please share your experience or skills in this area. Thank you so much!
The noise from motors and reducers can be reduced to some extent through proper maintenance. For the sound of water falling, a collection basin can be placed at the bottom, with something similar to sponge inside it. The sound of the fan rotating is indeed difficult to reduce.
Regarding the sound of water falling, we want to place rubber balls with small spikes in the pool. There’s no good solution for other sounds either at the moment.
Excluding mechanical issues, on one hand, isolation should be implemented; wherever possible, it should be done in the equipment rooms； On the other hand, sound-absorbing partition walls can be installed between the noise source and the residential areas, similar to those used between railways and residential zones.
Sound-dampening mat? What material is it made of?
It’s made of plastic; I’m from Zaoqiang. What size tower do you have? I’ll ask how much it costs
The soundproofing foam installed on the collection hood we put in place did not yield satisfactory results either.
The sound of water falling and the sound of fan blades rotating are high-frequency noises, while motor noise is a low-frequency noise with greater penetration power. It is recommended to use external sound insulation barriers combined with silencers installed on the top of the cooling towers to reduce noise, which can yield good results; the specific design should be determined based on the location of the noise source.