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介绍了高压氢气泄漏自燃的研究现状,对基于扩散点火机理的高压氢气泄漏自燃的研究方法、手段及主要成果进行了初步分析。指出目前对于该机理的研究主要借助于管道内高压氢气突然扩散传播与喷射时的自燃现象进行分析。从初始压力和温度、管道几何尺寸和管口形状等方面讨论了引发这种自燃现象的主导因素及各因素的相互关系,并对实验和计算机模拟的研究方法和结果进行了讨论。最后对高压氢气泄漏自燃的研究进行了展望,可以针对更为复杂的工况进行研究,系统全面地分析各类因素的影响及其相互关系。
The research status of high pressure hydrogen leakage spontaneous combustion was introduced. The research methods, methods and main achievements of high pressure hydrogen leakage spontaneous combustion based on diffusion ignition mechanism were analyzed. It is pointed out that the current research on this mechanism is mainly based on the analysis of spontaneous combustion phenomena caused by the sudden diffusion and propagation of high pressure hydrogen in pipeline. From the initial pressure and temperature, the geometry of the pipe and the shape of the nozzle, the main factors that lead to this spontaneous combustion phenomenon and the interrelationship between the factors are discussed. The research methods and results of the experiment and computer simulation are also discussed. Finally, the prospect of high pressure hydrogen leakage spontaneous combustion is prospected, and more complex conditions can be studied. The influences of various factors and their relationships are systematically and systematically analyzed.