Experimental study on performance of plume abatement and water-saving cooling tower with condensate method

doi:10.19965/j.cnki.iwt.2022-1275

Abstract

Abstract:

In order to obtain the plume abating，water-saving and energy-saving performance of the diamond-shaped module plume abatement and water-saving cooling tower，an related experimental studies were carried out with a designed circulating water volume of 5 000 m³/h. The evaluation model of cooling tower anti-fog，water-saving and energy-saving performance was established. Field tests obtained the parameters and variation laws of cooling tower anti-fog and water saving characteristics. The results showed that the relative humidity of the air in the design of the plume abatement water-saving cooling tower was 85%，the measured relative humidity of the tower was 82.28%，and the plume abatement index was 1.03，which met the requirements of zero plume abatement cooling tower. The amount of condensed water after heat exchange by the diamond-shaped plume abatement condensing module was 14.19 m³/h，and the water saving rate of the cooling tower was 25.3%. It could be seen that the condensation water saving effect of the tower was good. The total annual energy-saving income of a single tower was about 400 000 yuan，the overall annual energy-saving income was 2.4 million yuan. The diamond-shaped plume abatement water-saving cooling tower has good economic and environmental benefits.

Key words: mechanical draft cooling tower, condensing-water recovery, plume abatement performance, water saving performance

摘要：

为研究获得菱形模块消雾节水冷却塔的消雾节水和节能特性，对某设计循环水量为5 000 m³/h的菱形消雾节水冷却塔的消雾性能、节水性能和节能性能进行了试验研究。建立了冷却塔消雾节水节能性能评价模型，通过现场试验获得冷却塔消雾节水和节能特性参数及其变化规律。结果表明：消雾节水冷却塔设计出塔空气相对湿度为85%，实测出塔相对湿度为82.28%，消雾指数为1.03，符合“零雾型”消雾冷却塔的要求。经菱形消雾冷凝模块换热后的冷凝水量为14.19 m³/h，冷却塔节水率为25.3%，冷凝节水效果好。单塔年总节能收益约40万元，整体年节能收益达240万元，菱形消雾节水冷却塔具有良好的经济效益及环保效益。

关键词: 机械通风冷却塔, 冷凝回收, 消雾性能, 节水性能

CLC Number:

TK121

Weishu WANG, Juan ZHEN, Mingyong WANG, Ming GAO, Qiang ZHANG, Qinghua XU, Xinwei GUO. Experimental study on performance of plume abatement and water-saving cooling tower with condensate method[J]. Industrial Water Treatment, 2024, 44(1): 112-118.

王为术, 甄娟, 王明勇, 高明, 张强, 徐清华, 郭欣维. 大型冷凝式消雾节水冷却塔性能试验研究[J]. 工业水处理, 2024, 44(1): 112-118.

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URL: https://www.iwt.cn/EN/10.19965/j.cnki.iwt.2022-1275

https://www.iwt.cn/EN/Y2024/V44/I1/112

Figures/Tables 8

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参数	设计值	实测值
循环水流量/（m³·h^-1）	5 000	5 000
进塔水温/℃	37.5	38
出塔水温/℃	27.5	28
进出塔水温降/℃	10	10
大气压力/kPa	102.9	102.3
进塔空气干球温度/℃	5	6.1
进塔空气湿球温度/℃	2.1	2.8
进塔空气相对湿度/%	60	56.29
环境空气干球温度/℃	5	6
环境空气湿球温度/℃	2.1	2.6
环境空气相对湿度/%	60	54.85

参数	设计值	实测值
循环水流量/（m³·h^-1）	5 000	5 000
进塔水温/℃	37.5	38
出塔水温/℃	27.5	28
进出塔水温降/℃	10	10
大气压力/kPa	102.9	102.3
进塔空气干球温度/℃	5	6.1
进塔空气湿球温度/℃	2.1	2.8
进塔空气相对湿度/%	60	56.29
环境空气干球温度/℃	5	6
环境空气湿球温度/℃	2.1	2.6
环境空气相对湿度/%	60	54.85

参数	参数值
循环水量/（m³·h^-1）	5 000
进水温度/℃	38
出水温度/℃	28
温差/℃	10
环境湿球温度/℃	2.6
环境干球温度/℃	6.1
冷却塔凝水量/（m³·h^-1）	14.19

参数	参数值
循环水量/（m³·h^-1）	5 000
进水温度/℃	38
出水温度/℃	28
温差/℃	10
环境湿球温度/℃	2.6
环境干球温度/℃	6.1
冷却塔凝水量/（m³·h^-1）	14.19

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