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作 者:朱啸爽 周强[3] 戴巍[1] 朱文秀[1] 周远[1] 王俊杰[1]
机构地区:[1]中国科学院理化技术研究所低温工程学重点实验室,北京100190 [2]中国科学院大学,北京100049 [3]北京空间飞行器总体设计部空间热控技术北京市重点实验室,北京100094
出 处:《真空与低温》2015年第6期330-333,共4页Vacuum and Cryogenics
基 金:国家自然科学基金项目(No.51176198;No.51327806;No.51276188)
摘 要:高频脉冲管制冷机由于冷端无运动部件、振动小、寿命长等优点,广泛运用于低温物理实验、航空航天等领域。通过介绍一种两级气耦合高频脉冲管制冷机,在该脉冲管的第一级中,采用了双向进气和多路旁通作为调相机构,为获取更好的调相效果,第二级脉冲管的惯性管和气库被置于第一级的冷头处。为了进一步调节第二级脉冲管中压力波质量流的相位差,将压缩机的气流引入二级脉冲管热端作为第二级脉冲管的双向进气。该制冷机在充气压力1.7 MPa,输入电功250 W的工况下,可以获得13.5 K的无负荷制冷温度,0.6 W@30 K的制冷量。文章对该制冷机实验结果进行了总结。High frequency pulse tube cryocoolers have been widely used in many fields like physics experimental re-search and aerospace,for no moving part in cold region,low vibration and long life. A gas-coupled two-stage high frequen-cy pulse tube cryocooler with single compressor is introduced in this paper. In the first stage of the cryocooler,double-inlet and multi-bypass has been adopted as phase shifters. To get a better performance in phase shifting the reservoir and the in-ertance tube of the second stage has been located on the cold head of the first stage. A stream of gas has been introduced from the compression chamber to the hot end of the second stage as the double-inlet of the second stage,in order to shift the phase difference of the mass flow and the pressure wave. With the charge pressure of 1.7 MPa,input power of 250 W, the no-load temperature of 13.5 K and the cooling capacity of 0.6 W@30 K has been achieved. The experiment has been reported.
分 类 号:TB651[一般工业技术—制冷工程]
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