电器与能效管理技术Issue(12)：67-75,9.DOI:10.16628/j.cnki.2095-8188.2025.12.009
加氢站液氢泄漏扩散仿真研究
Research on Simulation of Liquid Hydrogen Leakage and Diffusion in Hydrogen Refueling Stations
摘要
Abstract
The diffusion behavior of dangerous hydrogen gas after a continuous liquid hydrogen leakage in a hydrogen refueling station is researched,which can provide the thearetical basis for safety protection design.It is assumed that a medium aperture leak occurred in a liquid hydrogen storage tank under 10 m/s westerly wind conditions,and the direction of the leak is the same as the wind direction.A 220 m length calculation domain and a hydrogen refueling station model in the downwind direction based on Fluent soft are established.A 100 s transient numerical simulation of liquid hydrogen leakage phase transition and diffusion is completed.The results indicated that the flammable hydrogen cloud reached its maximum diffusion distance of 83.77 m at 54 s and then stabilized,the vertical diffusion height of the hazardous hydrogen cloud does not exceed 10 m,and the explosive and low-temperature hydrogen clouds are confined within the U-shaped wall.Therefore,in the future the safety protection radius for flammable gases at liquid hydrogen refueling stations should not be less than 83.77 m.It is necessary to strictly reduce the layout of equipment around liquid hydrogen storage tanks and focus on the protection of the space below 10 m of the refueling station.关键词
氢/泄漏/扩散/数值模拟/安全防护Key words
hydrogen/leakage/diffusion/numerical simulation/safety protection分类
信息技术与安全科学引用本文复制引用
MA Wenjin,ZENG Qiquan,LIAO Huosheng,LIU Shixue,ZHANG Shuxing..加氢站液氢泄漏扩散仿真研究[J].电器与能效管理技术,2025,(12):67-75,9.基金项目
国家自然科学基金项目(52277080) （52277080）
