火焰引燃高速列车车厢窗帘燃烧特性全尺寸试验研究

发布时间：2018-12-16 01:13

【摘要】：以CRH1高速列车车厢单个窗帘为重点研究对象,运用家具量热仪,全尺寸试验研究不同引火源功率、不同通风量等条件下窗帘点燃特性、热释放速率、质量损失率、热释放总量、烟气释放速率等重要火灾动力学参数;分析它们之间关系,最终总结其燃烧行为及特性,为高速列车火灾防治及安全设计提供基础数据及参考依据。研究结果表明:高速列车窗帘较易引燃,1 min左右即可引燃,纵向蔓延为主,持续燃烧时间为6~15 min;热释放速率易受不同引火源功率及火场环境影响,可达400 k W/m2以上;热释放总量随引火源功率及通风量增加而降低,最高超过60 MJ/m2;烟气释放速率与通风量成正比,基本不受引火源功率影响;抑制有焰燃烧,降低其自身燃烧性能是高速列车窗帘阻燃关键。
[Abstract]:Taking the single curtain of CRH1 high-speed train carriage as the main research object, using furniture calorimeter and full-scale test, the igniting characteristics, heat release rate, mass loss rate and total amount of heat release of the curtain under different ignition power and different ventilation amount were studied. Important fire dynamic parameters such as flue gas release rate; The relationship between them is analyzed, and the combustion behavior and characteristics are summarized, which provides basic data and reference for fire prevention and safety design of high-speed train. The results show that the curtain of high speed train is easy to ignite, which can ignite about 1 min, and the longitudinal spread is dominant. The heat release rate of 615 min; continuous burning time is easily affected by different ignition power and fire environment, and can reach more than 400k W/m2. The total heat release decreased with the increase of ignition power and ventilation, and the maximum flue gas release rate of more than 60 MJ/m2; was proportional to the ventilation rate, and was not affected by the ignition power. Restraining flame burning and reducing its own combustion performance are the key of flame retardant for high speed train curtain.
【作者单位】：四川师范大学消防工程研究所;四川省公共火灾防治技术重点实验室;
【基金】：国家自然科学基金资助项目(51446002) 四川省科技厅重点资助项目(2011SZ0242)
【分类号】：U298.4

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