不同风水布置方式对蒸发冷却盘管布水均匀性影响研究  

Research on the Influence of Different Cooling Air and Spray Water Arrangement on the Water Distribution Uniformity of Evaporative Cooling Coil

作　　者：林勇军 徐鹏华 张学伟 史亮 邓立生[2] LIN Yongjun;ZHANG Xuewei;SHILiang;DENG Lisheng(Guangdong Shenling Environmental Systems Co.,LTD,Fosan Guangdong,528000;Guangzhou Institute of Energy Conversion,Chinese Academy of Sciences,Guangzhou Guangdong,510000)

机构地区：[1]广东申菱环境系统股份有限公司,广东佛山528000 [2]中国科学院广州能源研究所,广东广州510000

出　　处：《制冷》2025年第1期85-89,共5页Refrigeration

摘　　要：本文采用模拟仿真探究三种不同的风水布置方式(顺流、横流、逆流)对蒸发冷布水均匀性的影响。通过蒸发冷却盘管表面指定液膜厚度(0.01 mm-1 mm)的占比以及整个盘管液膜的分布情况反应出蒸发冷布水的均匀性。研究结果表明:风水顺流的布置方式效果最佳,蒸发冷却盘管表面能够形成连续的膜层;经过4 s后,平均液膜厚度最大,液膜覆盖性最好;且指定液膜厚度范围的表面积占整个换热器表面65%;横流布置方式次之,达到52%。逆流仅为35%,液膜效果最差,成膜可观的膜层几乎仅分布于盘管上部1/4高度范围。In this paper,simulation is used to investigate the influence of three different cooling air and spray water arrangement(down-flow,cross-flow,counter-flow)on the uniformity of evaporative cold distribution water.The uniformity of water distribution in the evaporative cooling system is reflected by the proportion of the specified water film thickness on the evaporative cooling coil surface(0.01 mm-1 mm)and the distribution of the water film on the entire coil.The research results show that the arrangement of cooling air and spray water with the same flow direction has the best effect,continuous film layer can be formed on the surface of the evaporative cooling coil;After 4 s,the average liquid film thickness was the largest and the liquid film coverage was the best.The surface area of the specified liquid film thickness range accounts for 65%of the entire surface of the heat exchanger;Cross flow arrangement is second,reaching 52%.Counter-flow is only 35%,the liquid film effect is the worst,the film formation is almost only distributed in the upper 1/4 height of the coil.

关 键 词：蒸发冷却 风水布置方式 布水均匀性 蒸发冷却盘管 液膜 

分 类 号：TK172[动力工程及工程热物理—热能工程]