基于G-M制冷机的小型氢液化装置开发  

Development of small hydrogen liquefaction device based on G-M refrigerator

作　　者：谢福寿 夏斯琦 朱宇豪 马原 王磊 厉彦忠[1,2] Xie Fushou;Xia Siqi;Zhu Yuhao;Ma Yuan;Wang Lei;Li Yanzhong(Institute of Refrigeration and Cryogenic Engineering,Xi’an Jiaotong University,Xi’an 710049,China;State Key Laboratory of Technologies in Space Cryogenic Propellants,Beijing 100028,China)

机构地区：[1]西安交通大学制冷与低温工程研究所,西安710049 [2]航天低温推进剂技术国家重点实验室,北京100028

出　　处：《低温工程》2022年第2期1-6,82,共7页Cryogenics

基　　金：国家自然科学基金(51906184);中国博士后科学基金(2021T140538、2020M673391、2018M633505);中央高校基本科研业务费专项资金(XZY012020074);航天低温推进剂技术国家重点实验室基金(SKLTSCP1905);陕西省博士后科研项目(2018BSHGZZHQYXMZZ13)。

摘　　要：设计研制了一套基于G-M制冷机的常压常温氢气直接液化的小型装置,包括液氢杜瓦、正仲转换装置、供气系统、液氢输送系统和测量系统等,提出了微正压氢液化工艺方法,制定了氢操作流程工艺及安全防护措施,并开展了实验测试。实验结果表明,该氢液化方案是可行且有效的,该装置是安全可靠的。在压力为162 kPa时,该小型氢液化装置的氢气液化速率可达到0.585 L/h。同时,该装置具备一边液化,一边加注供液的功能,满足科学实验连续使用的要求。A small device for direct liquefaction of hydrogen at normal pressure and normal temperature based on G-M refrigerator was designed and developed, including liquid hydrogen dewar,conversion device for orthohydrogen and parahydrogen,gas supply system,liquid hydrogen transport system and measurement system. Hydrogen liquefaction technology was presented under micro-positive pressure,operation process and safety protection measures for hydrogen was formulated and experimental tests were carried out. Experimental results show that the hydrogen liquefaction scheme is feasible and effective,and the device is safe and reliable. Hydrogen liquefaction rate of the small device for hydrogen liquefaction can achieve 0. 585L/h at a pressure of 162 kPa.The device has the function of liquefying and supplying liquid at the same time,which can be used continuously in scientific experiments.

关 键 词：氢能 氢液化方案 小型氢液化装置 G-M制冷机 液氢实验测试 

分 类 号：TB657.8[一般工业技术—制冷工程]