| 脉管制冷机液氦温区高频特性 |
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| 引用本文： | 甘智华,陈杰,李卓裴,邱利民.脉管制冷机液氦温区高频特性[J].南京航空航天大学学报,2009,41(3). |
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| 作者姓名： | 甘智华 陈杰 李卓裴 邱利民 |
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| 作者单位： | 浙江大学制冷与低温研究所,杭州,310027 |
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| 摘 要： | 从主动制冷的角度,探索冷端无运动部件的低温制冷机-脉管制冷机高频下达到液氯温区的条件,在前期理论设计的基础上,研制了一台预冷型的单级高频脉管制冷机,采用低温惯性管和低温气库为调相方式,开展了频率、平均充气压力、预冷温度以及输入功率等对制冷机性能影响的实验研究.实验结果表明:当采用氦-4为工质,预冷温度为4.54 K,工作压力为0.775 MPa,工作频率为40 Hz时,该制冷机最低无负荷制冷温度达4.23 K.
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| 关 键 词： | 液氦温区 高频 脉管制冷机 回热器 低温惯性管 |
High Frequency Characteristics of Pulse Tube Cryocooler at Liquid Helium Temperature |
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| Gan Zhihua,Chen Jie,Li Zhuopei,Qiu Limin.High Frequency Characteristics of Pulse Tube Cryocooler at Liquid Helium Temperature[J].Journal of Nanjing University of Aeronautics & Astronautics,2009,41(3). |
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| Authors: | Gan Zhihua Chen Jie Li Zhuopei Qiu Limin |
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| Institution: | Institute of Refrigeration and Cryogenics;Zhejiang University;Hangzhou;310027;China |
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| Abstract: | A precooled single-stage Stirling type pulse tube cryocooler(PTC) is designed to investigate the high frequency characteristics of PTC to reach liquid helium temperature and the performance of the cryocooler at liquid helium temperature.The cold inertance tube and the cold reservoir are used as the phase shifter for this stirling type PTC.Experiments on the influence of operating frequency,average pressure,precooling temperature,and input power on the performance of the Stirling type PTC are carried out.Res... |
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| Keywords: | liquid helium temperature high frequency pulse tube cryocooler regenerator cold inertance tube |
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