基于网络算法的地铁长大区间隧道火灾通风模式
伍彬彬史聪灵赵晨李建车洪磊
Fire Ventilation Mode in Subway Long and Large Interval Tunnel Based on Network Algorithm
WU BinbinSHI ConglingZHAO ChenLI JianCHE Honglei
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作者信息:中国安全生产科学研究院地铁火灾与客流疏运安全北京市重点实验室，100012，北京
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Affiliation:Beijing Key Laboratory of Metro Fire and Passenger Transportation Safety, China Academy of Safety Science and Technology, 100012, Beijing, China
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关键词:
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Key words:
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DOI:10.16037/j.1007-869x.2020.05.038
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中图分类号/CLCN:U231.96
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栏目/Col:应用技术
摘要:
建立通风网络模型，通过模拟列车车头火灾下6种典型工况的通风排烟，着重分析不同位置隧道风机的开闭数量对通风排烟效果的影响。讨论了不同模式下的气流组织方向及风速特征值。分析模拟结果发现，开启起火隧道列车车头前车站风井的2台隧道风机正转排风、列车车尾后中间风井的2台隧道风机反转送风，同时开启未起火隧道侧2台隧道风机反转辅助送风，则通风效果最好。
Abstracts:
Through establishing a ventilation network model, six typical ventilation and smoke exhaust modes under the train head fire condition are studied. The influence of tunnel ventilation fan (TVF) opening and closing numbers on ventilation and smoke exhaust effect is emphatically analyzed, the characteristics of air flow direction and wind velocity under different modes are discussed. The simulation analysis shows that the best effect is to open two TVF in the station air shaft in front of the train head just in the fire tunnel for air exhaust, and two TVF in the middle air shaft behind the train and two TVF on both sides of the tunnel without fire for fresh air supply.
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