采用喷嘴结构的高效微型同轴脉冲管制冷机  

HIGH EFFICIENT COAXIAL MINIATURE PULSE TUBE CRYOCOOLER WITH SYMMETRY SPRAY NOZZLE

作　　者：周远[1] 巨永林[1] 朱文秀[1] 梁惊涛[1] 罗二仓[1] 

机构地区：[1]中国科学院低温技术实验中心

出　　处：《真空与低温》1998年第3期150-155,共6页Vacuum and Cryogenics

摘　　要：首次介绍了一种采用对称喷嘴结构调相装置代替脉冲管和气库之间的阻力元件（小孔、毛细管或调节阀）的同轴脉冲管制冷机。理论分析和初步的实验研究表明，通过合理的喷嘴曲线设计，在相同功耗下，可进一步降低制冷温度，提高脉冲管制冷机的性能。A kind of coaxial pulse tube refrigerator that used a symmetry spray nozzle as the resistance between the pulse tube and reservoir,instead of the orifice,adjusted valve or capillary tube was first presented and discussed in the paper.Thermodynamic analysis and experimental data demonstrated that the symmetry spray nozzle can decrease the flow resistance and entropy generation,resulting in the improvement of the refrigeration performance for the pulse tube refrigerator.

关 键 词：脉冲管 制冷机 对称喷嘴 微型 低温制冷机 

分 类 号：TB651[一般工业技术—制冷工程]