为提高加氢站的安全性，为预防和控制全尺寸加氢站的氢气泄漏提供理论依据，以陕西某加氢站为例，使用ANSYS ICEM软件进行物理建模，在ANSYS FLUENT软件中对不同因素影响下的加氢站高压氢气泄漏过程进行了模拟分析。结果表明：加氢站中不同容器的不同泄漏位置都会对氢气可燃气云的流动和氢气泄漏量产生影响；泄漏方向对气流扩散趋势有较明显的影响，直接决定了氢气云的流向；以高压储氢罐为例，当泄漏孔径从10 mm增加到20 mm时，泄漏量增大，氢气可燃气云分布范围扩大，且质量流量也随之变大；当外界风速从2 m/s增加到10 m/s时，氢可燃云消失时间先增加后减少；障碍物以及围墙能有效地限制氢气的流动，防止事故的进一步扩大，但随着氢气的聚集，也会增加事故的风险。研究成果可为加氢站的氢气泄漏事故提供对策与建议，对加氢站的运营和安全管理提供理论指导。

In order to improve the safety of the hydrogenation station and provide a theoretical basis for the prevention and control of hydrogen leakage in the full-size hydrogenation station, taking a hydrogen refueling station in Shaanxi province as an example, the physical modeling was carried out by using ANSYS ICEM software, and the high-pressure hydrogen leakage process of hydrogenation station under the influence of different factors was simulated and analyzed in ANSYS FLUENT software. The results show that different leakage locations of different containers affect the flow of hydrogen gas cloud and the amount of hydrogen leakage. The leakage direction has obvious influence on the flow diffusion trend, which directly determines the flow direction of the hydrogen gas cloud. Take the high-pressure hydrogen storage tank as an example, when the leakage diameter increases from 10 mm to 20 mm, the leakage amount increases, the distribution range of hydrogen gas cloud expands, and the mass flow rate also increases. When the external wind speed is increased from 2 m/s to 10 m/s, the disappearance time of the hydrogen gas cloud increases first and then decreases. Barriers and walls can effectively limit the flow of hydrogen and prevent further expansion of accidents. But with the accumulation of hydrogen, the existence of barriers and walls will increase the risk of accidents. The research results provide countermeasures and suggestions for the hydrogen leakage accident in the hydrogenation station, and provide theoretical guidance for the operation and safety management of hydrogenation station.