单级脉管制冷机多点取冷实验研究  

Experimental Study on Multi-point Cooling of Single-Stage Pulse Tube Cryocooler

作　　者：张安阔 谢芳 余文辉 韩一楠 熊超 谢晶[1] ZHANG Ankuo;XIE Fang;YU Wenhui;HAN Yinan;XIONG Chao;XIE Jing(College of Food Sciences&Technology,Shanghai Ocean University,Shanghai 201306,China;Shanghai CLA Cryogenic Technology Limited Liability Company,Shanghai 200240,China)

机构地区：[1]上海海洋大学食品学院,上海201306 [2]上海超立安科技有限责任公司,上海200240

出　　处：《红外技术》2025年第4期523-529,共7页Infrared Technology

基　　金：上海市自然科学基金项目(24ZR1428800)。

摘　　要：单级脉管制冷机往往只考虑了冷头的制冷性能,其冷指冷头、室温端由于大温度梯度的存在所产生的制冷效用却常被忽略。为最大限度利用该类制冷机的制冷潜力,同时探究其多温区应用可能,由此开展了实验研究。基于一台8W@80K单级同轴型脉管制冷机,采用冷指外部及冷端分别添加负载的方式,模拟不同温区环境。通过热负荷的调控,获得了脉管制冷机不同负载方式下的制冷性能。基于实验数据的对照,分析了不同输入功下,制冷机中间制冷量、冷端制冷量等重要参数间的影响机制,并讨论了其潜在联系。实验结果表明,中间制冷温度、中间制冷量一定时,单级脉管制冷机多温区应用是可行的。In single-stage pulse-tube cryocoolers,only the cooling performance of the cold head is often considered,whereas the cooling effects at the cold and hot ends of the cold finger,due to the existence of large temperature gradients,are often neglected.Experimental studies were conducted to maximize the cooling potential of this type of cryocooler and to explore its applicability in multitemperature scenarios.The experiment was based on an 8W@80K single-stage coaxial pulse-tube cryocooler,with separate loads applied to the external and cold ends of the cold finger to simulate different temperature zones.The cooling performance of the pulse-tube cryocooler under different load conditions was measured by regulating the thermal load.Based on a comparison of the experimental data,the influence mechanism between key parameters,such as intermediate and cold-end cooling capacity,under different input powers was analyzed,and their potential interrelations were discussed.The experimental results showed that multi-temperature applications of single-stage pulse-tube cryocoolers are feasible when the intermediate cooling temperature and capacity remain constant.

关 键 词：脉管制冷机 单级 多点取冷 

分 类 号：TB651[一般工业技术—制冷工程]