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 ›› 2022, Vol. 41 ›› Issue (11): 1503-1506.

• • 上一篇    下一篇

地下综合管廊燃气泄漏爆炸后温度场及压力场影响研究

崔堃鹏1,曾 涛1,崔英洁2,利 学3   

  1. (1. 中国消防救援学院,北京 102201;2. 北京航天万源建筑工程有限责任公司,北京 100076;3.北京建筑大学 土木与交通工程学院,北京 100044)
  • 出版日期:2022-11-15 发布日期:2022-11-15
  • 作者简介:崔堃鹏(1985- ),男,山东青岛人,中国消防救援学院工程抢险教研室副教授,主要从事抢险救援与技术、应急装备等研究,北京市昌平区南口镇南雁路4号,102201。
  • 基金资助:
    国家重点研发计划项目(2020YFC1511600);国家自然科学基金项目(51708018);北京市教委科研项目-科技计划一般项目(KM202010016016)

Study on the influence of temperature and pressure field after gas leakage and explosion in underground utility tunnels

Cui Kunpeng1, Zeng Tao1, Cui Yingjie2, Li Xue3   

  1. (1. China Fire and Rescue Institute, Beijing 102201, China; 2. Beijing Aerospace Wanyuan Construction Engineering Co., Ltd., Beijing 100076, China; 3. School of Civil and Transportation Engineering, Beijing University of Civil Engineering and Architecture, Beijing 100044, China)
  • Online:2022-11-15 Published:2022-11-15

摘要: 利用ANSYS Fluent软件建立内置障碍物综合管廊燃气仓模型,并使用均相湍流燃烧时均方程组、k-ε湍流模型和EBU-Arrhenius燃烧模型对管廊内甲烷空气预混气体爆炸过程进行模拟,探讨管廊内不同火源位置对内置障碍物综合管廊燃气仓内爆燃过程的影响。结果表明,在管廊竖向方向,当点火源高度相对于障碍物高度越高,受障碍物扰动越小,火焰传播进程越快。在水平方向,点火源与障碍物间距越小,管廊内压力上升越缓慢,管廊内火焰传播速度越慢。

关键词: 地下综合管廊, 障碍物, 燃烧爆炸, 点火源

Abstract: The equal-equation equation of homogeneous turbulent combustion time, k?ε turbulence model and Ebu-Arrhenius combustion model in ANSYS Fluent software were used to simulate the explosion process of methane air premix gas in the gas bunker of integrated pipe gallery with built-in obstacles, and the influence of different fire source positions on the ignition process in the gas bunker of integrated pipe gallery with built-in obstacles was discussed. The results show that when the height of ignition source is lower than the level of obstacle in the vertical direction, the flame is disturbed the most and the flame propagates the slowest. In the horizontal direction, the smaller the distance between ignition source and obstacle, the slower the pressure rise rate.

Key words: underground utility tunnel, obstacles, combustion and explosion, ignition source