酒窝型板式换热器流动换热特性分析及优化  

Analysis and optimization of flow and heat transfer characteristics of dimple plate heat exchangers

作　　者：刘斌 耿士江 李政道 朱胜民 王子星 张卓[2] 陶文铨[2] Liu Bin;Geng Shijiang;Li Zhengdao;Zhu Shengmin;Wang Zixing;Zhang Zhuo;Tao Wenquan(Zhejiang Extek Technology Co.,Ltd.,Anji;MOE Key Laboratory of Thermo-Fluid Science and Engineering,Xi’an Jiaotong University,Xi’an)

机构地区：[1]浙江英特科技股份有限公司,安吉 [2]西安交通大学热流科学与工程教育部重点实验室,西安

出　　处：《暖通空调》2023年第10期120-125,132,共7页Heating Ventilating & Air Conditioning

摘　　要：以某公司实际使用的板式换热器为研究基础,对其强化结构(酒窝)分别增加了局部突起和长条突起,设计了2种改进板片,对其换热效果进行了模拟分析,并采用等泵功下性能评价指标作为衡量换热效果的指标。结果显示:2种改进板片的性能评价指标分别为1.09和1.10,均可达到较好的换热强化作用,其中增加长条突起的改进板片2可以在压降几乎不变的基础上将换热系数提高10.94%。Based on the research of a plate heat exchanger actually used in a company,this paper adds local protrusions and long protrusions to its reinforcement structure(dimple),respectively,designs two kinds of improved plates,and uses the performance evaluation criteria under equal pump power as an index to evaluate the heat transfer performance.The results show that the performance evaluation criteria of the two improved plates are 1.09 and 1.10,respectively,and they can achieve better heat transfer enhancement.The improved plate 2 with long protrusions can increase the heat transfer coefficient by 10.94%on the basis of almost unchanged pressure drop.

关 键 词：换热器 酒窝 结构优化 改进板片 换热强化 性能评价指标 

分 类 号：TU83[建筑科学—供热、供燃气、通风及空调工程]