2023年第1期总第251期低温工程CRYOGENICSNo.12023SumNo.251大冷量同轴型脉冲管制冷机蓄冷器周向温度分布实验研究张雅婷1,2王乃亮1赵密广1,2李金泽1荀玉强1梁惊涛1,2(1中国科学院理化技术研究所中国科学院空间功热转换技术重点实验室北京100190)(2中国科学院大学北京100049)摘要:针对一台液氮温区可产生100W制冷量的脉冲管制冷机,通过控制变量的方法实验研究了工作频率、输入功率、冷头热负荷量对蓄冷器圆周方向温度分布和最大温差的影响。研究结果表明:工作频率的改变对蓄冷器的周向温度分布影响不大,增大输入功率导致蓄冷器的周向温度不均匀性明显变强,增大冷头热负荷量可以减小蓄冷器的周向温度不均匀性。关键词:脉冲管制冷机大冷量温度分布蓄冷器中图分类号:TB651文献标识码:A文章编号:1000-6516(2023)01-0001-05收稿日期:2022-12-12;修订日期:2023-02-09基金项目:国家自然科学基金(521006036)。作者简介:张雅婷,女,24岁,硕士研究生。ExperimentalstudyoncircumferentialtemperaturedistributionofregeneratorincoaxialpulsetuberefrigeratorwithlargecoolingcapacityZhangYating1,2WangNailiang1ZhaoMiguang1,2LiJinze1XunYuqiang1LiangJingtao1,2(1KeyLaboratoryofTechnologyonSpaceEnergyConversion,TechnicalInstituteofPhysicsandChemistry,ChineseAcademyofSciences,Beijing100190,China)(2UniversityofChineseAcademyofScience,Beijing100049,China)Abstract:Thestudyobjectisapulsetuberefrigeratorwithacoolingcapacityof100Winliq-uidnitrogentemperaturezone.Theeffectsofoperatingfrequency,inputpowerandheatloadofthecoldheadonthetemperaturedistributionandmaximumtemperaturedifferenceinthecircum-ferentialdirectionoftheregeneratorareexperimentallystudiedbythemethodofcontrolvariables.Theresultsshowthatthechangeofoperatingfrequencyhaslittleeffectonthecircumferentialtem-peraturedistributionoftheregenerator,theincreaseofinputpowerleadstotheobviousincreaseofthecircumferentialtemperaturenonuniformityoftheregenerator,andtheincreaseoftheheatloadofthecoldheadcanreducethecircumferentialtemperaturenonuniformityoftheregenerator.Keywords:pulsetuberefrigerator;largecoolingcapacity;temperaturedistribution;regen-erator1引言随着科学技术的进步,空间应用对于制冷量的需求越来越大。如红外技术...
