不同加热温度下泡沫金属芯钠热管启动性能试验研究  

Experimental Study on Start-up Performance of Sodium Heat Pipe with Metal-Foam Wick at Different Heating Temperatures

作　　者：马婷婷 朱昌健 李阳 王小兵[1] 李森[1,2] MA Tingting;ZHU Changjian;LI Yang;WANG Xiaobing;LI Sen(School of Energy,School of Petroleum and Natural Gas Engineering,Changzhou University,Changzhou 213164,China;School of Petroleum Engineering,Northeast Petroleum University,Daqing 163318,China)

机构地区：[1]常州大学石油与天然气工程学院能源学院,常州213164 [2]东北石油大学石油工程学院,大庆163318

出　　处：《真空科学与技术学报》2023年第8期674-680,共7页Chinese Journal of Vacuum Science and Technology

基　　金：黑龙江省博士后面上项目(LBH-Z21125,LBH-Z20118);江苏省高等学校自然科学研究面上项目(21KJB470001)。

摘　　要：泡沫金属是一种具有良好传热性能的多孔材料,将泡沫金属作为吸液芯应用于热管中有望提高热管的工作性能。研制了泡沫金属芯钠热管,并实验研究和对比分析了泡沫金属芯钠热管与无芯钠热管在不同加热温度下的启动性能和均温性能。结果表明,泡沫金属芯钠热管完全启动时所需的加热温度低于无芯钠热管,且在相同加热温度下泡沫金属芯的启动时间较短;随着加热温度的增加,钠热管的启动时间缩短,轴向温度分布均匀性越好;泡沫金属芯钠热管的启动性能和均温性能均优于无芯钠热管。实验研究初步证明了采用泡沫金属作为高温热管吸液芯的优越性。Metal foam is a kind of porous material with good heat transfer performance.The application of metal foam as a wick is expected to improve the heat transfer performance of heat pipes.A sodium heat pipe with a metal-foam wick was developed,and its start-up performance and isothermal performance were experimentally studied and compared to a wickless sodium heat pipe.The results show that the lowest heating temperature needed for successfully starting up a sodium heat pipe with a metal-foam wick is lower than that of a wickless sodium heat pipe.Also,the start-up time of the metal-foam wick sodium heat pipe is shorter than the wickless one at the same heating temperature.Meanwhile,the start-up time of the sodium heat pipe decreases with the increase in heating temperature,and the axial temperature distribution becomes more uniform.The start-up performance and isothermal performance of sodium heat pipe with metal-foam wick appeared to be better than the wickless one.The advantages of using a metal foam as a wick for high-temperature heat pipes are preliminarily proved by experimental research.

关 键 词：高温热管 泡沫金属吸液芯 加热温度 启动性能 均温性能 

分 类 号：TK172.4[动力工程及工程热物理—热能工程]