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Cooling tower noise control measures

Author:Trlon  Views:  Time:2021-02-26
Cooling tower noise control measures

  Countermeasures for cooling tower noise:

  According to the cooling tower installation conditions, the sound value is somewhat different. If there are noise requirements, please consult the cooling tower manufacturer in advance.

  Regarding the amount of hydrating water:

  1) Evaporation capacity (WE) kg/hKlWCooling tower noise reduction treatment manufacturer

  The circulating water of the cooling tower is constantly evaporating during operation, and the evaporation is calculated by the following formula:KlWCooling tower noise reduction treatment manufacturer

  WEQ/R=(Tw1-Tw2)×L×Cp/RKlWCooling tower noise reduction treatment manufacturer

  When WB=27℃ for general air conditioner, (Tw1-Tw2)=5℃, Q: cooling heat (KJ/h)=(Tw1-Tw2)×L×Cp. R: latent heat of evaporation of water (2520KJ/kg), L: circulating water volume (kg/h), Cp: constant pressure specific heat (4.2KJ/kg°C) to obtain: WE=0.0083×L, that is to say circulating water volume 0.83% of it is evaporated.KlWCooling tower noise reduction treatment manufacturer

  2) Floating water volume (WD) kg/hKlWCooling tower noise reduction treatment manufacturer

  Depending on the structure of the cooling tower and the speed of ventilation, the maximum amount of floating water generally does not exceed the following values:KlWCooling tower noise reduction treatment manufacturer

  Open type, 0.3% of circulating water; closed type, 0.15% of circulating water.KlWCooling tower noise reduction treatment manufacturer

  3) Make-up water volume ΔW (l/min)KlWCooling tower noise reduction treatment manufacturer

  The amount of supplemental water is the sum of the above two items. The specific gravity of water is 1 (kg/l).KlWCooling tower noise reduction treatment manufacturer

  Open air conditioner: 1.13% of circulating water volume; closed type: 0.98% of circulating water volume.KlWCooling tower noise reduction treatment manufacturer

  For safety reasons, 1.5-1.7% of the circulating water volume is generally required.KlWCooling tower noise reduction treatment manufacturer

  4) Volume of sewage WB (kg/h)KlWCooling tower noise reduction treatment manufacturer

  The amount of sewage discharged varies according to the water quality and the concentration ratio. For general air-conditioning, the open type and closed type are the same. The above water volume plus 0.3% of the circulating water volume.KlWCooling tower noise reduction treatment manufacturer

  5) Selection of water supply pipeKlWCooling tower noise reduction treatment manufacturer

  The selection of the water supply pipe is based on the water supply volume and the water supply pressure, and the flow characteristics of the float valve. Especially in the case of a natural falling water tank with low supplemental water pressure, please consult the cooling tower manufacturer in advance.KlWCooling tower noise reduction treatment manufacturer

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