| 干水在热环境中的持续作用效果研究* |
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| 引用本文： | 张天巍,刘祥臣,王国峰,张存位,刘皓,梁强.干水在热环境中的持续作用效果研究*[J].中国安全生产科学技术,2021,17(11):172-178. |
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| 作者姓名： | 张天巍 刘祥臣 王国峰 张存位 刘皓 梁强 |
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| 作者单位： | （1.中国人民警察大学 救援指挥学院，河北 廊坊 065000；2.威海金泓集团有限公司，山东 威海 264200；3.哈尔滨工业大学 材料科学与工程学院，黑龙江 哈尔滨 150001；4.中国人民警察大学 消防与应急救援国家工程实验室，河北 廊坊 065000） |
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| 基金项目： | * 基金项目: 国家自然科学基金项目（51804314）；河北省自然科学基金项目（E2019507007）；河北省重点研发计划项目（20375503D）；中国人民警察大学科研重点攻关项目（2019zdgg006） |
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| 摘 要： | 为研究干水对建筑火灾中高聚物燃烧产生的热危害和烟气危害的影响，采用火焰传播量热仪（FPA）模拟建筑火灾扑灭后的持续热环境，对灭火过程中过量施加的干水对可燃高聚物的持续作用效果进行研究。结果表明:干水能够明显提升可燃物的抗复燃性能以及削弱燃烧过程中的热危害和烟气危害；相比于纯燃料，干水作用下可燃物的点燃时间出现明显的延迟，并且热释放速率和一氧化碳生成速率明显降低，尤其在可燃物燃烧初期，干水还具有显著的抑制烟气生成速率的效果。研究结果可为灾后消防人员的搜救和被困人员的逃生提供一种新的技术方案。
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| 关 键 词： | 热辐射 干水 火焰传播量热仪 持续作用 热和烟气危害 |
Study on sustained action effect of dry water in thermal environment |
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| ZHANG Tianwei,LIU Xiangchen,WANG Guofeng,ZHANG Cunwei,LIU Hao,LIANG Qiang.Study on sustained action effect of dry water in thermal environment[J].Journal of Safety Science and Technology,2021,17(11):172-178. |
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| Authors: | ZHANG Tianwei LIU Xiangchen WANG Guofeng ZHANG Cunwei LIU Hao LIANG Qiang |
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| Affiliation: | (1.College of Rescue and Command,China People’s Police University,Langfang Hebei 065000,China;2.Weihai Jinhong Group Co.,Ltd.,Weihai Shandong 264200,China;3.College of Materials Science and Engineering,Harbin Institute of Technology,Harbin Heilongjiang 150001,China;4.National Engineering Laboratory for Fire and Emergency Rescue,China People’s Police University,Langfang Hebei 065000,China) |
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| Abstract: | In order to study the influence of dry water on the heat and smoke hazards generated by the combustion of polymers in the building fires,the fire propagation apparatus (FPA) was used to simulate the sustained thermal environment after fire extinguishing,and the sustained action effect of excessively applied dry water on the combustible polymer during the fire extinguishing process was studied.The results showed that the dry water could significantly improve the re-ignition resistance performance of combustibles and weaken the heat and smoke hazards during the combustion process.Compared with the pure fuel,the ignition time of combustibles under the action of dry water was significantly delayed,and the heat release rate and the generation rate of carbon monoxide reduced significantly.Especially in the early stage of combustible combustion,the dry water also had a significant effect on suppressing the rate of smoke generation.The research results can provide a new technical solution for the search and rescue of firefighters and the escape of trapped persons after the disaster. |
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| Keywords: | thermal radiation dry water fire propagation apparatus (FPA) sustained action heat and smoke hazards |
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