高效斯特林制冷机性能实验研究  

Experimental study on performance of high efficiency Stirling cryocooler

作　　者：闫浩 尹传林 张铠 Yan Hao;Yin Chuanlin;Zhang Kai(The 16th Research Institute of CETC,Hefei 230088,China;The Provincial key Laboratory of Cryogenic technology,Hefei 230088,China)

机构地区：[1]低温技术安徽省重点实验室,合肥230088 [2]中国电子科技集团公司第十六研究所,合肥230088

出　　处：《低温与超导》2023年第1期90-93,98,共5页Cryogenics and Superconductivity

基　　金：安徽省自然科学基金(1908085ME164)资助。

摘　　要：围绕某型号研制任务需求,自主研制了一种气动分置式斯特林制冷机,制冷机采用动磁式直线电机驱动、压缩机对置结构,压缩机及膨胀机均采用膜片弹簧支撑方式。基于sage软件完成整机热力学、结构相关设计,针对影响制冷机的主要因素:密封间隙、充气压力和膜片弹簧刚度开展了相关的理论和试验研究,获得了压缩机与膨胀机最佳的匹配状态,样机在60 WAC输入功率下制冷量不低于3 W/80 K,制冷机效率可达5%以上。A pneumatic split Stirling cryocooler was designed and developed based on the requirements of a certain type of development task.The cryocooler was driven by a moving magnetic linear motor and the compressor was opposite.The compressor and expander were supported by flexure spring.Based on the Sage software,the thermodynamic design of the whole cryocooler and the structure-related design were completed.Relevant theoretical and experimental studies were carried out on the main factors to affect the cryocooler,including clearance seal,charging pressure and flexure spring stiffness.The best match state between the compressor and the expander was obtained.The results show that the cryocooler can offer 3 W cooling power at 80 K with 60 WACinput power,and its efficiency can reach more than 5%.

关 键 词：斯特林制冷机 充气压力 膜片弹簧 密封间隙 

分 类 号：TB651[一般工业技术—制冷工程]