N_2-Ar混合工质在节流制冷器中的应用  

Application of Refrigerant Mixture N_2-Ar for J-T Coolers

作　　者：周建[1] 郭涛[1] 陶星临[1] 许红 

机构地区：[1]昆明物理研究所,云南昆明650223 [2]装甲兵驻昆明军代室,云南昆明650223

出　　处：《红外技术》2009年第8期476-478,482,共4页Infrared Technology

摘　　要：在Ar或N2作为节流制冷器首选制冷工质的基础上,提出N2-Ar混合工质,改变了节流制冷器的综合性能,扩展了节流制冷器的应用范围。首先,简要介绍了N2-Ar混合气体的热力特征,试验对比不同N2-Ar混合比工质对节流制冷器带来的影响。并对这些影响进行理论分析,得出具有应用价值的N2-Ar混合比范围及不同条件下合适的混合比。The mixture refrigerant N2-Ar instead of common refrigerant N2 or Ar is applied for J-T coolers. Mixture refrigerant N2-Ar changes the comprehensive performance of J-T coolers and extends application of J-T coolers. The briefly thermal characteristics of mixture refrigerant N2-Ar are introduced. The difference of J-T cooler performance caused by the different mixture ratio is tested. By the analysis of the difference, the rational range of mixture ratios and several typical mixture ratios for J-T coolers are obtained.

关 键 词：混合工质 节流制冷器 降温时间 

分 类 号：TN215[电子电信—物理电子学]