| 细水雾熄灭受限空间油池火主导机理分析 |
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| 引用本文： | 牛国庆,余明高,刘志超,于水军.细水雾熄灭受限空间油池火主导机理分析[J].消防科学与技术,2007,26(3):286-289. |
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| 作者姓名： | 牛国庆 余明高 刘志超 于水军 |
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| 作者单位： | 1. 河南理工大学安全科学与工程学院,河南,焦作,454003;中南大学,防灾科学与安全技术研究所,湖南,长沙,410075
2. 河南理工大学安全科学与工程学院,河南,焦作,454003 |
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| 基金项目： | 国家自然科学基金;河南省高校杰出科研创新人才工程项目 |
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| 摘 要： | 通过对细水雾熄灭油池火实验过程中温度场的分析，得出了池火火焰存在核心反应区、通风控制区和燃料控制区。通过对烟气成分和池火燃烧熄灭过程中的能量分析可知，细水雾吸热膨胀、稀释氧气和窒息对熄灭油池火所起的作用非常微弱。细水雾对油池火的作用过程可分为主导机理不同的两个阶段，初期主导机理为气相冷却和衰减热辐射，后期主导机理为表面冷却。
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| 关 键 词： | 细水雾 池火 灭火机理 温度场 |
| 文章编号： | 1009-0029(2007)03-0286-04 |
| 修稿时间： | 2006年12月4日 |
Analysis of dominant mechanism of extinguishments of pool fires with water mist in confined space |
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| NIU Guo-qing,YU Ming-gao,LIU Zhi-chao,YU Shui-jun.Analysis of dominant mechanism of extinguishments of pool fires with water mist in confined space[J].Fire Science and Technology,2007,26(3):286-289. |
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| Authors: | NIU Guo-qing YU Ming-gao LIU Zhi-chao YU Shui-jun |
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| Abstract: | It was put forward that there are three regions,namely core reaction region,ventilation-controlled region and fuel-controlled region in the pool fire flames by analyzing temperature field of extinguishing pool fires with water mist,and found that water mist's expanding and diluting oxygen and asphyxia actions are very weak when it is used to extinguish pool fires by means of analyzing smoke ingredients and energy.Actions period of water mist can be divided into two stages when it is used to extinguish pool fires.In the initial stage,dominant mechanism of water mist is gas cooling and attenuation of radiation.In the later period,dominant mechanism of which is surface cooling. |
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| Keywords: | water mist pool fire extinguishing fire mechanism temperature field |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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