80K脉管制冷机惯性管调相机理及优化研究.PDF
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第 37 卷 第 5 期
2016 年 10 月
制 冷 学 报
Journal of Refrigeration
Vol. 37,No. 5
October, 2016
文章编号:0253 - 4339(2016) 05 - 0100 - 06
doi:10?? 3969 / j?? issn?? 0253 - 4339?? 2016?? 05?? 100
80 K脉管制冷机惯性管调相机理及优化研究
刘少帅1,2 张 华1 张安阔2 陈 曦1 吴亦农2
(1 上海理工大学能源与动力工程学院 上海 200093;2 中国科学院上海技术物理研究所 上海 200083)
摘 要 液氮温区脉冲管制冷机在高温超导等领域的应用越来越广泛。 基于热声理论,本文采用 DeltaEC软件对纯惯性管及惯
性管加气库的调相能力进行模拟研究,建立了 80 K温区制冷机整机数值模型,分析了不同惯性管及气库组合方式对制冷机性能
的影响。 结果表明:纯惯性管结构和单段惯性管加气库两种方式可以达到较为接近的调相能力,采用双段惯性管接气库方式可
以提高制冷机性能,最低温度可以达到 48?? 8 K。 最后搭建制冷机整机性能测试实验台对模拟结果进行了验证。
关键词 脉管低温制冷机;惯性管;热声学;制冷性能实验
中图分类号:TB651 + . 4; TP391. 9 文献标识码: A
Theory and Optimization Study of Inertance Tube of 80 K Pulse
Tube Refrigerator
Liu Shaoshuai1 , 2 Zhang Hua1 Zhang Ankuo2 Chen Xi1 Wu Yinong2
(1. School of Energy and Power Engineering, University of Shanghai for Science and Technology, Shanghai,200093,
China; 2. Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai, 200083,China)
Abstract The pulse tube refrigerator working at liquid nitrogen temperature is widely used in many fields, such as high temperature su?
perconducting. Based on thermoacoustic theory, the phase shift ability of the inertance tube with / without reservoir is investigated using
DeltaEC. A pulse tube refrigerator model is built to investigate the effect of different inertance tube on cooling performance. The simula?
tion results show that the inertance tube without reservoir would has close phase shift ability to the single?segment inertance tube with a
reservoir. The pulse tube refrigerator connecting with double?segment inertance tube and reservoir gives a better cooling performance, in
which lowest temperature would reach 48. 8 K. At last, the test system is built to verify the simulation results.
Keywords pulse tube cryogenic cryocooler; inertance tube; thermoacoustic; refrigeration performance test
收稿日期:2016 年 1 月 12 日
近年来,随着脉冲管制冷机制冷性能的提高和外
形尺寸的优化,脉冲管制冷机依靠其高可靠性受到越
来越多的关注。 在脉冲管制冷机的设计过程中,研究
者发现在脉冲管热端增加一个改变压力波和
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