基于Rosin-Rammler的海水冷却塔收水器流体力学性能研究  

Hydrodynamic performance of seawater cooling tower drift eliminator based on rosin-rammler function

作　　者：李雪 李治洁 王印忠 胡明明 张连强 郭凯[3] 尹建华 LI Xue;LI Zhi-jie;WANG Yin-zhong;HU Ming-ming;ZHANG Lian-qiang;GUO Kai;YIN Jian-hua(The Institute of Seawater Desalination and Multipurpose Utilization,MNR(Tianjin),Tianjin 300192,China;Tianjin Zhonghai Water Treatment Technology Co.,Ltd.,Tianjin 300192,China;College of Chemical Engineering,Tianjin University,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 [2]天津市中海水处理科技有限公司,天津300192 [3]天津大学化工学院,天津300192

出　　处：《化学工程》2021年第9期40-45,共6页Chemical Engineering(China)

基　　金：国家自然科学基金资助项目(51808158);天津市科技计划项目(19YFZCSF01070);中央级科研院所基本科研业务费专项资金(K-JBYWF-2021-QR02)。

摘　　要：收水器是控制海水冷却塔性能及环境影响的重要塔内件。为探索其内部流动特征对性能的影响,采用试验与计算流体力学(CFD)方法,对海水冷却塔收水器流体力学特性进行研究。文中设计了海水冷却塔收水器压降性能的测试装置并对BO-45/160型收水器进行测试,运用Rosin-Rammler函数描述收水器内部液滴群的粒径分布,通过SST k-ω湍流模型及离散相(DPM)模型,建立CFD计算模型,与试验测试结果对比,模拟值与试验值达到较好的吻合效果,证明了CFD模型的准确性。随后,通过CFD方法考察波形、双波形、折线形收水器基本流道片型在多间距多高度条件下的流动形式,分析不同收水器型式在不同间距和高度下收水效率与压力降的影响因素,为新结构的开发提供数据支撑。The drift eliminator is an important internals to control the performance and environmental impact of seawater cooling tower.In order to explore the influence of internal flow characteristics on the performance,the hydrodynamic characteristics of the drift eliminator in seawater cooling tower were studied by using experimental and computational fluid dynamics(CFD)methods.In this paper,a test device for pressure drop performance of seawater cooling tower water collector was designed,and BO-45/160 drift eliminator was tested.The particle size distribution of droplets in the water collector was described by Rosin-Rammler function.SST k-ωturbulence model and discrete phase(DPM)model were used to establish the CFD calculation model.Compared with the experimental results,the simulated values and the experimental values are in good agreement,which proves the accuracy of the CFD model.Then,the flow patterns of basic flow channel of wave,double wave and broken line drift eliminators under the condition of multi spacing and multi height were investigated by CFD method,and the influencing factors of drift eliminator efficiency and pressure drop under different spacing and height of different drift eliminators were analyzed,which provided data support for the development of new structures.

关 键 词：海水冷却塔 收水器 Rosin-Rammler函数 离散相模型 

分 类 号：TQ95[化学工程]