面向高热流电子器件散热的环路热管研究进展  

Research progress of loop heat pipes for heat dissipation of high-heat-flux electronic devices

作　　者：魏进家[1,2] 刘蕾 杨小平 WEI Jinjia;LIU Lei;YANG Xiaoping(School of Chemical Engineering and Technology,Xi’an Jiaotong University,Xi’an 710049,Shaanxi,China;State Key Laboratory of Multiphase Flow in Power Engineering,Xi’an Jiaotong University,Xi’an 710049,Shaanxi,China)

机构地区：[1]西安交通大学化学工程与技术学院,陕西西安710049 [2]西安交通大学动力工程多相流国家重点实验室,陕西西安710049

出　　处：《化工学报》2023年第1期60-73,共14页CIESC Journal

基　　金：国家自然科学基金项目(U2141218,52006166)。

摘　　要：环路热管是一种高效的两相传热装置,在高热流电子器件散热领域极具前景。介绍了平板式环路热管目前存在的三大瓶颈问题,即极限热通量不能满足某些大功率器件的需求、温度波动问题和低功率下启动失败及温度过冲问题,分析了这些问题产生的原因,并总结了近十年来研究人员提出的解决方法,包括毛细芯性能改良、工质优化和环路热管结构改进等。随后列举了已取得实际应用的环路热管结构及其使用场合。最后对平板式环路热管的研究现状进行了总结,并提出了进一步的研究方向,为提高环路热管综合性能和实现商业化应用提供参考。Loop heat pipe is an efficient two-phase heat transfer device,which has great prospects in the field of heat dissipation of high-heat-flux electronic devices.This paper introduces the three current bottleneck problems of the plate loop heat pipe,namely,the limit heat flux cannot meet the needs of some high-power devices,the temperature fluctuation problem,the failure to start at low power and the problem of temperature overshoot.The reasons for these problems are analyzed and the solutions proposed by researchers in the past decade are summarized,which includes the optimization of wick,the improvement of working fluid and the modification of loop heat pipe structure.The applications of loop heat pipes are also introduced.Finally,the research status of loop heat pipes with flat evaporator is summarized,and further research directions are prospected to improve the comprehensive performance and realize the commercial application of loop heat pipes.

关 键 词：传热 环路热管 优化设计 蒸发 传热极限 温度波动 启动 

分 类 号：TK124[动力工程及工程热物理—工程热物理]