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Cooling tower noise solutions and treatment methods and noise standards

Author:Trlon  Views:  Time:2020-10-27
Cooling tower noise solutions and treatment methods and noise standards

So far, there are two different evaluation index systems for cooling tower noise standards:

A kind of national product implementation standard GB/T7190.1-1997, GB/T7190.2-1997 "Glass Fiber Reinforced Plastic Cooling Tower" in response to the cooling tower design plan and manufacturing manufacturer.43CCooling tower noise reduction treatment manufacturer
Another type of specification stipulates the consumer's national standard GB3096-2008 "Acoustic Environmental Quality Standard" for machines and equipment with different circulation system water consumption and model specifications.43CCooling tower noise reduction treatment manufacturer
If the company produces cooling towers in accordance with the maximum limits of GB/T7190.1-1997 and GB/T7190.2-1997, all machinery and equipment cannot meet the national standard GB3096-2008. Regarding the regulations of night noise ≤45~50dB(A) in areas within the second category, only a few low-tonnage, ultra-low noise and silent cooling towers can meet the regulations of night noise standards in some areas.43CCooling tower noise reduction treatment manufacturer
Therefore, the residents around the cooling tower and the relevant government environmental protection departments in accordance with the national noise standard GB3096-2008 stipulate that the cooling tower consumers shall comprehensively control the noise pollution caused by the cooling tower.43CCooling tower noise reduction treatment manufacturer

Noise source of cooling tower:

The noise source of cooling tower is basically composed of four aspects:

1. The noise of fan inlet and exhaust;43CCooling tower noise reduction treatment manufacturer
2. Water splashing noise;43CCooling tower noise reduction treatment manufacturer
3. Noise from fan reducer and motor;43CCooling tower noise reduction treatment manufacturer
4. The noise of the centrifugal water pump, piping and valve of the cooling tower.43CCooling tower noise reduction treatment manufacturer

Cooling tower noise treatment method:

1. Silencer: Install a silencer at the inlet vent of the cooling tower ventilation fan, which can adjust the noise reasonably and effectively.43CCooling tower noise reduction treatment manufacturer
2. Set the soundproof cover: the noise of the cooling tower inlet vent noise, water splashing noise, reducer and motor mechanical equipment noise can be installed with a soundproof cover to control the noise in the soundproof cover and reduce the amount of noise.43CCooling tower noise reduction treatment manufacturer
3. Choosing sound-absorbing mat: Lay the sound-absorbing mat on the lower body of the cooling tower with wire mesh support or place it on the water tray to reduce the noise of water splashing.43CCooling tower noise reduction treatment manufacturer
4. Others. (According to specific conditions, additional measures for sound insulation and vibration reduction can be added)43CCooling tower noise reduction treatment manufacturer
Be very careful: When dealing with noise in the cooling tower, the natural ventilation must be taken into account in accordance with the specific conditions of the site to ensure that the noise reduction processing machinery and equipment are safe and reliable.43CCooling tower noise reduction treatment manufacturer

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