【摘要】 随着氢能广泛的应用,储氢容器将日益增多,泄漏破坏等事故将不可避免。今建立了高压储氢罐泄漏扩散的模型,提出了研究高压储氢罐泄漏扩散的数值模拟方法。通过对高压储氢罐不同位置发生泄漏扩散的数值计算,得到了不同位置泄漏后的扩散特性。对比数值模拟结果,认为储氢罐侧面与底面位置发生泄漏时,其危险性要远大于储罐顶部发生泄漏。通过数值分析,得出了该模拟条件下的危险区域在射流方向的传输距离与时间的近似关系公式。数值模拟结果可以为加氢站等场所处理氢气泄漏事故提供参考。更多还原

【Abstract】 Since the use of the hydrogen H2 is wider day by day,the number of vessels used for H2 storage will be increased in the future,and at the same time the accident occurred by the H2 leakage should be paid more attention.In this study,the model for the leakage of high pressure H2 due to storage tanks failure was established and corresponding numerical simulation method was put forward.By the numerical simulation proposed,the different characteristics of the dispersion H2 which leaks from different leakage positions of the storage tank were obtained.The simulation results show that the endangerment caused by the H2 leakage occurred in the bottom or side position of the H2 storage tank is much more serious than that caused by the leakage occurred in the top of the vessel.Furthermore,the approximate equations for the transport distance calculation of the hazard regions caused by H2 storage tanks failure were obtained.The numerical simulation results can provide reference for dealing with the leakage of high pressure hydrogen storage tanks such as the leakage occurred in hydrogen filling stations.更多还原