摘要
中国工程物理研究院(CAEP)2K低温系统中,要对低纯度氦气进行回收和除杂。基于高压低温冷凝和吸附的方法,建成了一套氦气回收与纯化循环利用装置,单次回收低纯度氦气量为20Nm^3,低纯度氦气储存能力为1000Nm^3,纯化能力为20Nm^3/h,高纯氦气储存能力为3000Nm^3,能将粗氦气纯度从98%提升至优于99.9995%。实际运行表明,处理后的氦气纯度满足低温系统要求,较好地实现了氦气循环再利用,降低了系统对外部氦源补充的依赖。
The low purity helium must be recovered and impurities must be removed in the 2 K cryogenic system at CAEP. Based on the method of condensation and adsorption under high pressure and low temperature, a helium recovery and purification recycle installation was established. 20 Nm^3 low purity helium could be recovered each time with a total storage of 1000 Nm^3. Meanwhile, the purification capacity was 20 Nm^3/h with a total storage of 3000 Nm^3 pure helium,and the purity of helium could be improved from 98% to higher than 99.9995%. The actual operation indicates that the purity of processed helium satisfies the cryogenic system, helium is well recycled and the dependence of cryogenic system on outside helium is reduced.
作者
杨林德
王汉斌
单李军
沈旭明
傅剑
丁先庚
Yang Linde;Wang Hanbin;Shan Lijun;Shen Xuming;Fu jian;Ding Xiangeng(Institute of Applied Electronics,CAEP,Mianyang 621900,China;The 16th Research Institute of CETC,Heifei 230088,China)
出处
《低温与超导》
CAS
北大核心
2019年第3期8-11,共4页
Cryogenics and Superconductivity
基金
国家重大科学仪器设备开发专项"相干强太赫兹源科学仪器设备开发"项目(YQ130018)资助
关键词
低温系统
氦气
循环利用
回收
纯化
Cryogenic system
Helium
Recycle
Recovery
Purification