| 10K单级脉管制冷机性能研究 |
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| 引用本文： | 甘智华,董文庆,邱利民,孙贺,何永林.10K单级脉管制冷机性能研究[J].稀有金属材料与工程,2008(Z4). |
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| 作者姓名： | 甘智华 董文庆 邱利民 孙贺 何永林 |
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| 作者单位： | 浙江大学; |
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| 基金项目： | 国家自然科学基金(50776076); 浙江省科技厅国际合作重点项目(2006C24G2010027) |
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| 摘 要： | 20K温区大功率低温制冷机在超导体冷却、液氢无损贮存和低温泵等方面有着广阔的应用前景。为了探索单级脉管制冷机的极限制冷温度同时提高脉管制冷机在20K温区的制冷量,本文开展了计算模拟和实验研究。回热器模拟软件REGEN3.2的模拟结果显示,在不同的冷端质量流量下,单级脉管制冷机所能达到的最低制冷温度均为9.5K。在此基础上,本文设计了一台单级脉管制冷机,对回热器冷端10～80K温区的回热材料作了进一步优化。采用由不锈钢丝网、铅丸和稀土磁性蓄冷材料Er3Ni构成的复合式回热器,该单级脉管制冷机获得了10.9K的最低制冷温度,这是目前公开报道的单级脉管制冷机最低制冷温度。该制冷机在20.9K可获得20W的制冷量或在29.9K可获得40W的制冷量,输入功率为7.5kW。
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| 关 键 词： | 脉管制冷机 回热器 REGEN3.2 |
Performance Study of a Single-Stage Pulse Tube Cooler at 10 K |
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| Gan Zhihua,Dong Wenqing,Qiu Limin,Sun He,He Yonglin.Performance Study of a Single-Stage Pulse Tube Cooler at 10 K[J].Rare Metal Materials and Engineering,2008(Z4). |
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| Authors: | Gan Zhihua Dong Wenqing Qiu Limin Sun He He Yonglin |
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| Affiliation: | Gan Zhihua,Dong Wenqing,Qiu Limin,Sun He,He Yonglin (Institute of Refrigeration , Cryogenic Engineering,Zhejiang University,Hangzhou 310027,China) |
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| Abstract: | 20 K high power cryocoolers have promising applications for superconductor cooling, liquid hydrogen storage, cryopump and so on. In order to explore the lowest attainable refrigeration temperature and improve cooling performance at the temperature around 20 K for a single-stage G-M type pulse tube cooler (PTC), numerical and experimental study were further performed. Simulation results with REGEN3.2 showed that the lowest attainable refrigeration temperature can reach 9.5 K. Based on the simulation results,... |
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| Keywords: | pulse tube cooler regenerator REGEN 3 2 |
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