| 液氦温区分离型脉管制冷机性能影响因素 |
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| 引用本文： | 何永林,邱利民,甘智华,张小斌,卢杰,陈国邦. 液氦温区分离型脉管制冷机性能影响因素[J]. 浙江大学学报(工学版), 2007, 41(4): 594-597 |
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| 作者姓名： | 何永林 邱利民 甘智华 张小斌 卢杰 陈国邦 |
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| 作者单位： | 浙江大学 制冷与低温工程研究所，浙江 杭州 310027 |
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| 基金项目： | 国家自然科学基金重点资助项目(50536040)，霍英东基金优选资助项目(94013) |
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| 摘 要： | 研制了一台高效率液氦温区分离型二级脉管制冷机，采用单压缩机和单旋转阀驱动该二级脉管制冷机.在实际输入功率为6.7 kW时，第二级最低温度达到了2.5 K，在4.2 K有590 mW制冷量；同时第一级在36.7 K有15 W制冷量.制冷机在4.2和40 K 2个温度上都能提供大制冷量，可以用于替代G-M制冷机冷却超导磁体、低温泵和电子器件等.通过实验，研究并分析了不同压缩机和旋转阀时序对分离型二级脉管制冷机性能的影响.
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| 关 键 词： | 液氦 脉管 时序 |
| 文章编号： | 1008-973X（2007）04-0594-04 |
| 收稿时间： | 2006-01-12 |
| 修稿时间： | 2006-01-12 |
Influence factors on separate two-stage pulse tube cooler working at liquid helium temperature |
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| HE Yong-lin,QIU Li-min,GAN Zhi-hua,ZHANG Xiao-bing,LU Jie,CHEN Guo-bang. Influence factors on separate two-stage pulse tube cooler working at liquid helium temperature[J]. Journal of Zhejiang University(Engineering Science), 2007, 41(4): 594-597 |
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| Authors: | HE Yong-lin QIU Li-min GAN Zhi-hua ZHANG Xiao-bing LU Jie CHEN Guo-bang |
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| Affiliation: | Institute of Refrigeration and Cryogenics, Zhejiang University, Hangzhou 310027, China |
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| Abstract: | A 4 K separate two-stage pulse tube cooler(PTC) was designed and manufactured.Driven by one compressor and one rotary valve mode,the lowest temperature was 2.5 K,and cooling capacities of 590 mW at 4.2 K and 15.0 W at 36.7 K were achieved with an actual input power of 6.7 kW.Experimental results showed that the PTC can supply cooling capacities at both 4.2 and 40 K with high efficiency and can be used to replace the GM cooler to cool super-conducting magnets,cryopumps and electrical devices.Influences of valve timing and different compressors on the cooling performance of the 4 K separate two-stage PTC were also investigated by experiments. |
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| Keywords: | liquid helium pulse tube cooler(PTC) valve timing |
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