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): 297-300.

• • 上一篇    下一篇

上盖物业地下车辆段烟气运动研究

朱立1,潘旭海1,2,3,华敏1,3   

  1. 1.南京工业大学安全科学与工程学院,江苏南京210009;2.南京工业大学消防科学与工程研究所,江苏南京210009;3.南京工业大学江苏省城市与工业安全重点实验室,江苏南京210009
  • 出版日期:2020-03-15 发布日期:2020-03-15
  • 通讯作者: :潘旭海(1977-),男,南京工业大学安全科学与工程学院教授。
  • 作者简介:朱立(1995-),男,江苏苏州人,南京工业大学安全科学与工程学院硕士研究生,主要从事建筑火灾烟气控制和人员疏散研究,江苏省南京市浦口区浦珠南路30 号,210009。
  • 基金资助:
    国家自然科学基金项目(51476075);江苏高校优势学科建设工程项目

Study on smoke movement of underground depot with superstructure

ZHU Li1, PAN Xu-hai1,2,3, HUA Min1,3   

  1. 1. College of Safety Science and Engineering, Nanjing Tech University, Jiangsu Nanjing 210009, China; 2. Institute of Fire Science and Engineering, Nanjing Tech University, Jiangsu Nanjing 210009, China; 3. Jiangsu Key Laboratory of Urban and Industrial Safety, Nanjing Tech University, Jiangsu Nanjing 210009, China
  • Online:2020-03-15 Published:2020-03-15

摘要: 为了研究上盖物业地下车辆段夹层中烟气运动特性,搭建1:50 缩尺模型实验台,并将实验结果与FDS 全尺寸模拟结果进行比较。在确定的火源功率下,在混合通风系统中设置5 种不同的风速,并与自然通风进行对比。结果表明:相较于自然通风系统,混合通风系统可以更好地对烟气进行控制;1.4 m/s 的风速可以形成稳定的烟气层;在自然通风和混合通风系统中,夹层CO 体积分数始终低于0.06%,但是在自然通风系统中CO 会在夹层顶棚处聚集,不利于人员疏散。

关键词: 地下车辆段, FDS, 缩尺火灾实验, CO 体积分数, 烟气控制

Abstract: In order to study the basic characteristics of smoke movement in the interlayer of the underground depot with superstructure, a 1:50 scale model test bench was built, and the results were compared with the FDS full-scale simulation. Under the determined source power, five different wind speeds were set in the hybrid ventilation system, and a natural ventilation system was used for comparative experiments. The results showed that the mixed ventilation system can control the flue gas better than the natural ventilation system; a stable smoke layer can be formed at a wind speed of 1.4 m/s; in natural ventilation and hybrid ventilation systems, the concentration of carbon monoxide in the interlayer is always less than 0.06%, but in natural ventilation systems, carbon monoxide will accumulate at the ceiling of the interlayer, which is not conducive to evacuate.

Key words: underground depot, FDS, scale experiment, CO concentration, smoke control