压力容器2025，Vol.42Issue(11)：23-29,7.DOI:10.3969/j.issn.1001-4837.2025.11.003
氢燃料电池公交车车载氢系统火烧试验研究
Fire test research on on-board hydrogen system of hydrogen fuel cell buses
摘要
Abstract
To explore the safety of hydrogen fuel cell buses in case of fire,a fire test platform for the on-board hydrogen system was established,and a fire test study on a four-bottle group of 140 L-35 MPa type Ⅲ hydrogen storage cylinders was carried out.The on-board hydrogen system was equipped with two emergency vent with a pipe diameter of 10 mm,and a separate TPRD was set at the bottle mouth valve of each hydrogen storage cylinder.The thermal response law and release law of the on-board hydrogen system in a fire environment were analyzed emphatically.The test results show that during the burning process,the flame fuses to the middle position of the on-board hydrogen system,causing the two gas cylinders at the middle position to release prematurely.There is a possibility that the gas cylinders not completely wrapped by the flame will not release.During the high pressure gas release process,the pipeline is subjected to gas impact,and the release pipeline undergoes two deformations.When the four-bottle group shares the venting pipeline,the venting rate is not consistent.There is a possibility that the fusible alloy in the TPRD of the hydrogen storage cylinder has not been completely melted.In the future,particular attention should be paid to the coordinated safety design of TPRD for high pressure hydrogen storage vessels and their venting pipelines to enhance the safety performance of high pressure hydrogen storage vessels under extreme working conditions.关键词
车载氢系统/火烧试验/燃料电池公交车/氢安全Key words
on-board hydrogen system/fire test/fuel cell buses/hydrogen safety分类
机械制造引用本文复制引用
向冬梅,毛占鑫,付娜,易守春,张勋,李伊惠..氢燃料电池公交车车载氢系统火烧试验研究[J].压力容器,2025,42(11):23-29,7.基金项目
国家重点研发计划项目(2022YFB2502404) （2022YFB2502404）
