湿式冷却塔收水器的研究进展  

Research Progress on Cooling Tower Drift Eliminator

作　　者：李治洁 张连强 李雪 王印忠 尹建华 LI Zhi-jie;ZHANG Lian-qiang;LI Xue;WANG Yin-zhong;YIN Jian-hua(The Institute of Seawater Desalination and Multipurpose Utilization,MNR(Tianjin),Tianjin 300192,China)

机构地区：[1]自然资源部天津海水淡化与综合利用研究所,天津300192

出　　处：《盐科学与化工》2020年第5期5-11,共7页Journal of Salt Science and Chemical Industry

基　　金：2017年中央级公益性科研院所基本科研业务费专项资金(K-JBYWF-2017-G6);海洋经济创新发展示范项目(BHSF2017-15);天津市企业科技特派员项目(19JCTPJC57500)。

摘　　要：湿式冷却塔由于换热效率高,投资成本低,运行维护简单等优点,得到了广泛应用。近年来,由湿式冷却塔飘滴带来的环境影响和水资源浪费问题日益受到关注。收水器是解决湿式冷却塔飘滴问题的关键部件,文章介绍了湿式冷却塔收水器技术的应用及研究现状,回顾了收水器的研究和应用历史,重点探讨了实验和CFD方法对收水器内部气液两相流动的研究情况,讨论了收水器收水效率、压降及对整塔性能的影响,并总结了常用的性能关联式。分析表明收水器的研究仍然有很大的发展空间,提出未来新型收水器的研究将向特殊领域(如海水冷却塔)和多功能(兼具回收湿热水蒸气水分和飘滴液滴功能)方向发展。Evaporative cooling tower has been widely used because of its advantage of high heat transfer efficiency,low cost,simple operation and easy maintenance.However,the environmental problems and water losses caused by drift have attracted attention.Drift eliminators are key equipment solving the problem of cooling tower drift.This article introduced the application and research status of cooling tower drift eliminator.Research and application history of drift eliminator are firstly reviewed,and then this article focused on the study of gas-liquid two-phase flow in drift eliminator by experiment and CFD method.Moreover,the droplets collection efficiency,pressure drop of drift eliminator are discussed.The influence on the performance of the whole tower is also discussed,and the commonly used correlations are summarized.The analysis showed that more efforts are needed for the development of drift eliminator.It is proposed that the special(such as seawater cooling towers) and multi-functions(both with the functions of recovering moisture from wet hot water vapor and dripping droplets) drift eliminators will be promising research field.

关 键 词：收水器 波形 飘滴 冷却塔 

分 类 号：TQ053.5[化学工程]