1.5 t/d氢液化装置的研制与运行

Development and Operation of a 1.5 t/d Hydrogen Liquefaction Plant

国内首套自主研发、设计、集成并运行的1.5 t/d氢液化装置,采用了逆布雷顿制冷循环技术,标志着我国在民用氢液化技术领域的重要突破。介绍了该装置的系统组成、工艺流程及性能指标,并对其实际运行和性能测试结果进行了数据分析。通过远程监控获得了关于氢液化装置的关键性能数据,包括液化率、仲氢含量、液氮消耗量、压缩机电耗以及比能耗等。在满负荷工况下,该装置的液化率达到了1.59 t/d,比功耗为15.1 kW·h/kg,产品液氢中的仲氢含量高达98.5%,这些实测数据均优于设计指标。这套装置的研制成功,对于大型氢液化器的自主研发、集成和运行具有重要的理论和工程价值。

This 1.5 t/d hydrogen liquefaction plant,applying reverse-Brayton cycle refrigeration process,is the first to be independently developed,designed,integrated and marking an important breakthrough in China's civilian hydrogen liquefaction technology field.This paper primarily introduces the liquefaction process,performance,and system composition of this hydrogen liquefaction plant,and presents the operational and performance test results.By analyzing remote monitoring data,operational performance data such as the liquefaction rate,ortho-hydrogen content,liquid nitrogen consumption,compressor power consumption,and specific energy consumption were obtained.The measured liquefaction rate under full load conditions is 1.59 t/d,with a specific energy consumption of 15.1 kW·h/kg,and the para-hydrogen content in the product liquid hydrogen is 98.5%,all of which are superior to the design values.There will be important academic significance and engineering value for the independent development,integration,and operation of large-scale hydrogen liquefiers based on the research results of this hydrogen liquefier.