筒式永磁室温磁制冷机的研制  

Design of Double Cylinder Style Room-temperature Magnetic Refrigerator

作　　者：金培育[1,2] 黄焦宏[1,2] 闫宏伟[1,2] 杨占峰[1,2] 张英德[1,2] 李兆杰[1,2] 

机构地区：[1]包头稀土研究院,内蒙古包头014030 [2]稀土冶金及功能材料国家工程研究中心,内蒙古包头014030

出　　处：《稀土》2014年第5期21-24,共4页Chinese Rare Earths

基　　金：国家863计划项目资助(2011AA03A404);国际科技合作与交流专项资助(2011DFA53230);国家自然科学基金项目资助(51261001)

摘　　要：包头稀土研究院已经研制出新型双筒式室温磁制冷机。每个筒均由两个内外同心嵌套的具有Halbach结构的NdFeB磁场系统组成,最大磁感应强度1.5 T。两内套磁体通过齿轮啮合同步联动运转,实现两工作空间磁场周期变化,并保持相位相反。以金属Gd颗粒作为蓄冷器的制冷工质,零负载条件下达到近18℃的冷热端温差。Baotou Research Institute of Rare Earth has built a double cylinder style room-temperature magnetic refrigerator.Each magnetic system consists of two nested NdFeB magnets cylinders with Halbach arrays.The maximum magnetic field of the cylindrical volume of the magnetic system is 1.5T.The two inner cylindrical magnets of two magnetic system are in gear.The alternative magnetic field change can be produced by revolving the two inner cylindrical magnets.Preliminary tests have been performed using Gd powder as refrigerant.The maximum temperature span obtained is of approximately 18 ℃ with no thermal load.

关 键 词：室温磁制冷机 磁制冷机 GD 

分 类 号：TB6[一般工业技术—制冷工程]