扭曲椭圆管换热器技术进展及其应用  

Research progress of twisted oval tube heat exchanger and its application

作　　者：谭祥辉[1] 朱冬生[1] 张立振[1] 曾力丁[1] 成取林 

机构地区：[1]华东理工大学机械与动力工程学院承压系统与安全教育部重点实验室,上海200237 [2]南通赛孚机械设备有限公司,江苏南通226500

出　　处：《化学工程》2012年第10期29-34,共6页Chemical Engineering(China)

摘　　要：介绍了扭曲管换热器的结构特点、强化传热机理,总结了关于扭曲管换热器管程以及壳程流场的分析,同时介绍了相关分析方法和研究成果,同时从换热器设计制造的角度,对目前已有的扭曲管换热器管程、壳程传热计算公式进行了总结和分析,在扭曲椭圆管换热器目前研究状况的基础上,介绍了某厂采用扭曲椭圆管凝汽器的运行效果,结果表明:在一定情况下,扭曲管换热器的冷凝换热效果同样优于传统的折流板换热器,具有很好的推广应用前景。The characteristics and heat transfer enhancement mechanism of twisted tube heat exchanger were introduced. The analysis of tube-side and shell-side flow field of the heat exchanger was summarized. The methods and conclusions of these studies were discussed. And from the view of designing and manufacturing, the correlations for calculating the heat transfer and pressure drop performances of the heat exchanger were presented. According to the current investigation progress, the cases about the application of twisted oval tube condenser in a chemical factory were introduced in the work. The result shows that the twisted oval tube condenser performs better than the traditional baffle heat exchanger, and it can be widely used in the field of chemical industry.

关 键 词：扭曲管换热器 强化传热机理 准则关系式 凝汽器 

分 类 号：TK172[动力工程及工程热物理—热能工程]