流体机械2025，Vol.53Issue(2)：16-22,73,8.DOI:10.3969/j.issn.1005-0329.2025.02.003
一种干湿联合式机械通风冷却塔运行性能的试验研究
Experimental study of operating performance of a mechanical draft dry-wet hybrid cooling tower
摘要
Abstract
To address the issue of inadequate cooling capacity of mechanical ventilation air-cooled towers during the summer season,a kind of mechanical ventilation cooling tower with dry and wet combined ventilation is proposed,and the variation rules of water temperature and evaporation of cooling tower under 3 groups of circulating water flow,2 groups of inlet water temperature and 2 groups of fan frequency are studied experimentally.It has been discovered that a decrease in circulating water temperature is correlated with an increase in circulating water flow rate and a decrease in both inlet water temperature and fan frequency.When the inlet water temperature of the tower is 40℃and the fan frequency is 35 Hz,the circulating water temperature drop of the combined dry and wet mechanical ventilation cooling tower is 4.74,3.95,3.56℃when the circulating water flow rate is 30,45,60 m3/h,respectively.Compared with the mechanically ventilated air cooling tower(the circulating water temperature drop is 2.22,1.50,1.05℃respectively),the water temperature drop is further reduced by 2.52,2.45,2.51℃.The water evaporation of different circulating water flow rates is 0.098,0.106,0.142 kg/s,respectively.It can be seen that the dry and wet combined mechanical ventilation cooling tower can further reduce the water temperature out of the air-cooling tower with the help of a small amount of water evaporation,which helps to improve the cooling capacity of the air-cooling tower in the summer high temperature period,and the research results can provide theoretical guidance for energy saving and efficiency improvement of air cooling tower.关键词
机械通风空冷塔/填料/填料直接蒸发预冷/出塔水温/水蒸发量Key words
mechanical draft dry cooling tower/wet media/packing direct evaporative pre-cooling/exit temperature of hot water/water evaporation rate分类
能源与动力引用本文复制引用
王明伟,张晓楠,孙全全,焦宗昌,孟庆良,张永振,李明,刘天天,何锁盈..一种干湿联合式机械通风冷却塔运行性能的试验研究[J].流体机械,2025,53(2):16-22,73,8.基金项目
山东省科技型中小企业创新能力提升工程项目(2023TSGC0756) （2023TSGC0756）
潍坊市科技型中小企业创新能力提升工程项目(2023TS1007) （2023TS1007）
山东省自然科学基金面上项目(ZR2022ME008) （ZR2022ME008）
中国博士后科学基金项目(2023M732102) （2023M732102）
