【作者】 张俊峰； 施锦； 章学华；

【Author】 Zhangjunfeng;shijin;zhangxuehua;The 16th Institute of CETC;Anhui Vacree Technologies co.,LTd;

【机构】 中国电子科技集团公司第十六研究所； 安徽万瑞冷电科技有限公司；

【摘要】 介绍了一种适合于分离氦气中微量Kr、Xe、H₂及其同位素的方法。对比了不同分离方法的特点,并最终采用低温分凝法来分离混合气体。设计了分离的流程及温度、压力等物理参数,通过分析和计算,确定了在合适温度下,可以分离提取出混合气体中的杂志气体,实现最终尾气中杂质气体所要求的浓度指标。并得出最终混合气体杂质浓度只与进气压力和冷冻温度有关的结论。更多还原

【Abstract】 One method to separate Kr, Xe, H₂ from the hehium was introduced.The different methods to separate gases were compared and the cryogenic condensed method was first choice.The physical parameters of temparture,pressure and separating process were designed.Based on analysis and computation,it was proved that the impurity gases could be extracted and the purity degree could meet the requirement.The results show that the impurity concentration depends on the inlet pressure and condesned temperature and eventually exhaust the desired concentration of impurity gas.It is concluded that the impurity concentration of the final mixed gas is related to the intake pressure and the freezing temperature.更多还原