声功回收级联型脉管制冷机实验研究  

Experimental Study on a Cascade Pulse Tube Cooler With Work Recovery

作　　者：王龙一[1,2] 甘智华[1,2,3] 吴镁[1,2] 宋豫京[1,2] 朱佳凯[1,2] 赵胜颖[4] 

机构地区：[1]浙江大学制冷与低温研究所,杭州310027 [2]浙江省制冷与低温技术重点实验室,杭州310027 [3]能源清洁利用国家重点实验室,杭州310027 [4]浙江大学城市学院信息与电气工程学院,杭州310015

出　　处：《工程热物理学报》2015年第5期949-954,共6页Journal of Engineering Thermophysics

基　　金：国家自然科学基金资助项目(No.51376157);浙江省自然科学基金(LY12F01017)

摘　　要：在原有单级脉管制冷机的基础上,设计并研制了一台声功回收级联型脉管制冷机.实验结果表明,在输入电功为500 W时,无负荷制冷温度为主级123.3 K,辅级131.0 K,主级制冷量为143.7 W@233.0 K,辅级制冷量为62.9W@233.0 K,其总和206.6 W@233.0 K,高于相同输入功时单级脉管制冷机的理论模拟值189.6 W@233 K,验证了声功回收方案的可行性,不仅是对回热式低温制冷法在普冷温区实践的一次有益探索,而且为更低温度大制冷量脉管制冷机声功的回收奠定了基础.Based on an existing single stage pulse tube cooler,a cascade pulse tube cooler is designed and tested.Experimental results show that when the input electric power is 500 W,the no-load temperature of the primary stage cooler is 123.3 K,while that of the secondary stage cooler is 131.0K.The cooling capacity at 233 K is 143.7 W and 62.9 W for the primary and secondary stage cooler,respectively,thus the cascade pulse tube cooler obtains a total cooling power of 206.6 W at233 K,which is higher than the simulation result of the single-stage cooler 189.6 W at 233 K.The feasibility of cascade concept is demonstrated.This work is a rewarding exploration of regenerative cooling method applied at room temperature refrigeration,also it's helpful for high power pulse tube cryocoolers working at much lower temperatures.

关 键 词：普冷温区 脉管制冷 SAGE 线性压缩机 声功回收 

分 类 号：TB651[一般工业技术—制冷工程]