主管:中华人民共和国应急管理部
主办:应急管理部天津消防研究所
ISSN 1009-0029  CN 12-1311/TU

消防科学与技术 ›› 2020, Vol. 39 ›› Issue (3): 301-304.

• • 上一篇    下一篇

区间隧道列车火灾通风临界时间研究

姜学鹏1,2,3,景安1,2   

  1. 1.武汉科技大学资源与环境工程学院,湖北武汉430081;2.武汉科技大学消防安全技术研究所,湖北武汉430081;3.湖北省工业安全工程技术研究中心,湖北武汉430081
  • 出版日期:2020-03-15 发布日期:2020-03-15
  • 通讯作者: 景安(1995-),男,武汉科技大学资源与环境工程学院。
  • 作者简介:姜学鹏(1976-),男,山东青岛人,武汉科技大学资源与环境工程学院副教授,博士,主要从事隧道及地下空间火灾动力学与防治研究,湖北省武汉市青山区和平大道947 号,430081。
  • 基金资助:
    国家自然科学基金面上项目(51874213);湖北省自然科学基金青年项目(2018CFB186)

Study on critical time of train fire ventilation in metro section tunnel

JIANG Xue-peng1,2,3,JING An1,2   

  1. 1. School of Resource and Environmental Engineering,Wuhan University of Science and Technology,Hubei Wuhan 430081, China; 2. Fire Safety Technology Institute,Wuhan University of Science and Technology, Hubei Wuhan 430081,China; 3. Hubei Provincial Industrial Safety Engineering Technology Research Center,Hubei Wuhan 430081,China
  • Online:2020-03-15 Published:2020-03-15

摘要: 计算地铁区间列车火灾人员所需安全疏散时间,与模拟所得可用安全疏散时间对比,确定区间人员疏散策略及通风临界时间。研究表明:地铁列车外部中间位置着火停靠在区间,火源功率分别为5、7.5、10 MW,需启动纵向通风排烟系统,组织人员向上风向疏散。火源功率为5 MW,纵向通风风速为2.0 m/s时,150~180 s 开始通风可保证人员安全疏散;火源功率为7.5、10 MW,纵向通风风速分别为2.4、2.6 m/s 时,120~180 s 开始通风可保证人员安全疏散。风机由静止转换为事故工况的通风临界时间为120 s,由运转转换为事故工况的通风临界时间为90 s。

关键词: 消防安全, 研究进展, CiteSpace, 知识图谱

Abstract: In order to get the critical time of fire ventilation for metro trains, the required safe evacuation time is obtained by using the
formula of safety evacuation time for metro accidents, and compared with the available safe evacuation time obtained by numerical simulation of fire. The results show that when the fire happens in the middle of the subway train stopping at section, and the HRR is 5,7.5,10 MW, respectively, the longitudinal ventilation and smoke exhaust system should be activated to organize the evacuation of personnel in the upwind direction; when the power of HRR is 5 MW and the wind speed of longitudinal ventilation is 2.0 m/s, the safe evacuation of personnel can be guaranteed by starting ventilation in
150~180 s; when the HRR is 7.5,10 MW, and the longitudinal ventilation wind speed is 2.4 or 2.6 m/s respectively, ventilation can be started at 120~180 s to ensure the safe evacuation of personnel.Therefore, the critical time of ventilation is 120 s when the fan changes from static state to accident state; the critical time of ventilation from operation state to accident condition is 90 s.

Key words: metro section, train fire, safe evacuation, critical ventilation time