| 自动喷水灭火系统对地铁烟气特性的影响 |
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| 引用本文： | 代长青,袁慧.自动喷水灭火系统对地铁烟气特性的影响[J].消防科学与技术,2020,39(9):1245-1249. |
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| 作者姓名： | 代长青 袁慧 |
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| 作者单位： | 1. 安徽建筑大学土木工程学院，安徽合肥230601；2. 安徽省建筑结构与地下工程重点实验室，安徽合肥230601；3. 安徽建筑大学数理学院，安徽合肥230601 |
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| 基金项目： | 安徽省教育厅高校自然科学基金项目（KJ2018JD01）；安徽省中央引导地方科技发展专项项目（2018080503B0020） |
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| 摘 要： | 以岛式地铁站台为研究对象，利用FDS 软件建立火灾数值模型，模拟计算有、无自动喷水灭火系统对地铁站台中部行李火灾烟气特性的影响。结果表明：有自动喷水灭火系统时，地铁站台烟气蔓延速度及烟气温度会得到抑制；自动喷水灭火系统对烟气中CO 质量浓度及烟气能见度影响不大；烟气中CO 质量浓度在火源附近区域变大，远离着火源区域变小；烟气能见度在火源附近区域会降低，远离火源区域会提高。
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| 关 键 词： | 自动喷水灭火系统 地铁 烟气特性 数值模拟 |
Influence of automatic sprinkler system on the smoke characteristics of subway fire |
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| DAI Chang-qing,YUAN Hui.Influence of automatic sprinkler system on the smoke characteristics of subway fire[J].Fire Science and Technology,2020,39(9):1245-1249. |
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| Authors: | DAI Chang-qing YUAN Hui |
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| Affiliation: | 1.School of Civil Engineering, Anhui Jianzhu University,Anhui Hefei 230601,China; 2. Anhui Key Laboratory of Architecture Structure and Underground Engineering, Anhui Hefei 230601,China; 3.School of Mathematics and Physics, Anhui Jianzhu University, Anhui Hefei 230601,China |
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| Abstract: | Taking the island type subway platform as the research object, the numerical model was established by FDS software. The influence of automatic sprinkler system on the smoke characteristics of luggage fire in the middle of subway platform was calculated by numerical simulation.The results showed that the smoke spread speed and smoke temperature at the subway\platform will be restrained when there is automatic sprinkler system. The automatic sprinkler system has little effect on theCO mass concentration and smoke visibility in the smoke. The CO mass concentration in the smoke increases near the fire source, and decreases away from the fire source. The visibility of the smoke decreases near the fire source, and increases away from the fire source. |
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| Keywords: | automatic sprinkler system subway smoke characteristics numerical simulation |
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