Noise是由于震动产生的,而Closed-Circuit Cooling TowerNoise的来源主要是来自于:淋水声、Fan噪声、Water Pump震动的声音。它的噪声有的时候震动范围影响可能涉及到周围的30到50m ,由此可见Closed-Circuit Cooling TowerNoise的威力大。而解决Noise的主要方法有:不让Noise传播、增加隔音棉、置换一个低Speed的Fan等。
冷却塔
Noise的传播主要是靠空气、建筑和地面,其中主要的方式就是通过空气。如果在周围增加声音干扰,相对的声音会被';font-family:宋体;mso-ascii-font-family:calibri;>多次折射反射,随着反射次数与距离的增加,声音的分贝也会逐渐减少。而淋水声、Fan噪声、Water Pump震动的声音各不相同,Noise频次也是不同的。
声音干扰的可选择性大,有玻璃钢、铝合金和砖墙,可以根据其特性来选择,玻璃钢跟铝合金设计时应设计夜歌弧度';font-family:宋体;mso-ascii-font-family:calibri;>将声音向下反射,使其向下反射,砖墙是沙面设计,表面噪点多可以将声音不同角度的反射而且使用时间长。
FanNoise:FanSpeed越高噪声越大,增加Air Volume、减少Speed就可以减少Noise,如果预算够可以置换大叶片低Speed。
Water PumpNoise:在Water Pump外设置隔音棉,减少Noise,且不影响散热。
淋水声:横流冷却塔只有单侧进风口水声与风口进行对流会减少Noise传播;逆流冷却塔底部四周都会有进风格栅,淋';font-family:宋体;mso-ascii-font-family:calibri;>水声音与风口进风形成对流,也会减少Noise的传播。
Written by: Zhongliang Yiji Technical Department · 15 Years of Cooling Tower Selection Experience | Last Updated：2026-10-16
FAQ
How to choose between a closed-circuit and an open cooling tower?
For working conditions that demand clean water (such as vacuum furnaces, high-frequency furnaces, and injection machine hydraulic oil cooling), a closed-circuit tower is preferred: the cooled medium circulates inside the coil without direct contact with air, so it resists scaling, algae and particle contamination, with stable heat transfer and low maintenance. For ordinary recirculating water scenarios with tight water budgets or cost sensitivity, an open tower costs less upfront but requires supporting water treatment.
What are the footprint and connections of a 100 t closed-circuit cooling tower?
Taking a standard 100 m3/h closed-circuit tower as an example: overall dimensions are approximately 3500 x 1500 x 2800 mm with a footprint of about 5.25 m2; inlet and outlet piping is typically DN100, with a 5-10 C temperature drop under standard conditions. Refer to the product specification table for details; non-standard dimensions can be customised on site.
How do I size the pump and head for a cooling tower?
Pump flow is selected according to the rated circulating water volume of the cooling tower; head must account for pipeline friction losses, local resistance, equipment elevation difference and the necessary margin. Pressure-bearing equipment such as injection machines also requires reserve for the working pressure. It is recommended to hand the operating data (flow, temperature difference, installation height, pipe diameter and length) to technical staff for calculation, to avoid an undersized pump or excessive head that wastes energy.
What water treatment does a closed-circuit cooling tower need?
The outer circulating water of a closed-circuit tower still contacts air, so softened make-up water, periodic corrosion and scale inhibitor dosing, and control of the concentration ratio are recommended. The inner circulating medium should be softened water, antifreeze or pure water according to process requirements; outdoor installation in winter requires freeze protection (electric tracing or draining).
