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| 耦合吸收式制冷系统氢液化工艺设计与优化 |
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耿金亮1,2,3,4,5, 孙恒1,2,3,4, 荣海伦5, 李昊5, 王泽鑫5, 王翔远5
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1.中国石油大学（北京）机械与储运工程学院;2.中国石油大学（北京）油气管道输送安全国家工程研究中心;3.中国石油大学（北京）石油工程教育部重点实验室;4.中国石油大学（北京）城市油气输配技术北京市重点实验室;5.国家石油天然气管网集团有限公司油气调控中心
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| 摘要: |
| 目的 为降低氢液化工艺的比能耗（SEC），设计了一种混合制冷剂预冷、双压Claude循环过冷的氢液化工艺，不仅引入太阳能吸收式制冷系统降低工艺的SEC，而且还设计了制冷剂在不同压力下制冷以提高制冷效率。方法 使用HYSYS软件和粒子群优化算法对工艺进行模拟和优化，并对工艺进行能量分析、换热分析和㶲分析。结果 优化后工艺的SEC为5.6769 kW·h/kg，比优化前降低14.89%；㶲效率为56.04%，比优化前提高19.28%，表明优化后工艺能效显著提升。此外，工艺总的㶲损失为69496 kW，比优化前降低18.04%。结论 与其他液化工艺相比，设计的氢液化工艺不仅具有较高的液化性能，而且还能提高可再生能源的利用率，符合氢液化工艺的发展趋势。 |
| 关键词: 混合制冷剂 氢液化工艺 液氢 粒子群优化算法 比能耗 吸收式制冷系统 |
| DOI：10.3969/j.issn.1007-3426.2025.03.009 |
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| Design and optimization of hydrogen liquefaction process with coupled absorption refrigeration system |
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GENG Jinliang1,2,3,4,5, SUN Heng1,2,3,4, RONG Hailun5, LI Hao5, WANG Zexin5, WANG Xiangyuan5
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1.College of Mechanical and Transportation Engineering, China University of Petroleum, Beijing, China;2.National Engineering Research Center of Oil and Gas Pipeline Transportation Safety,, China University of Petroleum, Beijing, China;3.Key Laboratory of Petroleum Engineering of Ministry of Education, China University of Petroleum, Beijing, China;4.Beijing Key Laboratory of Urban Oil and Gas Transportation and Distribution Technology, China University of Petroleum, Beijing, China;5.PipeChina Oil & Gas Control Center, Beijing, China
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| Abstract: |
| Objective This paper designs a hydrogen liquefaction process with mixed refrigerant pre-cooling and dual-pressure Claude cycle sub-cooling to reduce the specific energy consumption (SEC). The process not only introduces a solar absorption refrigeration system to reduce the SEC of the process, but also designs the refrigerant to cool at different pressures to improve cooling efficiency. Method The process was simulated and optimized using HYSYS software and particle swarm optimization algorithm, and energy analysis, heat exchange analysis and exergy analysis of the process were performed. Result The SEC of the optimized process was 5.676 9 kW·h/kg, which was 14.89% lower than that before optimization. The exergy efficiency was 56.04%, which was 19.28% higher than that before optimization, which indicated that the optimized process had a high energy efficiency. Furthermore, the total exergy loss of the process was 69 496 kW, which was 18.04% lower than that before optimization. Conclusion Compared with other liquefaction processes, the designed hydrogen liquefaction process not only has a high liquefaction performance, but also improves the utilization of renewable energy, which is in line with development trend of the hydrogen liquefaction process. |
| Key words: mixed refrigerant hydrogen liquefaction process liquid hydrogen particle swarm optimization algorithm specific energy consumption absorption refrigeration system |
