| 代长青.基于FDS的水喷淋系统对地铁站台火灾参数的影响研究[J].安徽建筑大学学报,2022,30(): |
| 基于FDS的水喷淋系统对地铁站台火灾参数的影响研究 |
| Study on the influence of sprinkler system on fire parameters of subway platform based on FDS |
| 投稿时间：2021-04-15 修订日期：2021-05-18 |
| DOI： |
| 中文关键词: 水喷淋系统 应急排烟系统 站台火灾 烟气参数 数值模拟 |
| 英文关键词: water sprinkler system emergency smoke extraction system platform fire smoke characteristics numerical simulation |
| 基金项目: |
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| 摘要点击次数: 1686 |
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| 中文摘要: |
| 为了研究水喷淋系统和应急排烟系统对地铁站台火灾烟气特性的影响，建立了地铁站台火灾数值模型，应用FDS软件模拟计算了火源热释放速率为3MW时地铁站台火灾烟气温度、CO浓度、烟气能见度等火灾烟气主要参数的变化。结果表明：水喷淋系统可以降低地铁站台火灾烟气温度10℃左右，降低站台火灾CO浓度和提高烟气能见度的效果较差。增大应急排烟速度可以有效降低站台火灾烟气温度和CO浓度，提高烟气能见度。地铁消防自动喷水灭火系统设计和人员疏散方案设计可以考虑设置水喷淋系统与应急排烟系统，降低火灾烟气对人员疏散的危害。 |
| 英文摘要: |
| In order to study the influence of water sprinkler system and emergency smoke extraction system on the smoke characteristics of subway platform fire, a numerical model of subway platform fire was established, FDS software is used to simulate and calculate the changes of main parameters of fire smoke, such as smoke temperature, CO concentration and visibility, when the heat release rate of fire is 3MW. The results show that the water sprinkler system can reduce the smoke temperature of subway platform fire by about 10 degrees, and the effect of reducing the CO concentration and improving the smoke visibility is poor. Increasing the speed of emergency smoke extraction can effectively reduce the smoke temperature and CO concentration, and improve the smoke visibility. Water sprinkler system and emergency smoke exhaust system can be considered in the design of subway fire sprinkler system and evacuation scheme to reduce the harm of fire smoke to evacuation. |
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