隧道内贴壁火顶棚射流温度及火焰特性研究

doi:10.16265/j.cnki.issn1003-3033.2022.07.2080

中国安全科学学报 ›› 2022, Vol. 32 ›› Issue (7): 93-97.doi: 10.16265/j.cnki.issn1003-3033.2022.07.2080

隧道内贴壁火顶棚射流温度及火焰特性研究

徐童¹(), 唐飞²^,^**(), 何清³

1 中南大学防灾科学与安全技术研究所,湖南长沙 410075
2 中国科学技术大学火灾科学国家重点实验室,安徽合肥230026
3 安徽工业大学能源与环境学院,安徽马鞍山 243002

收稿日期:2022-02-19 修回日期:2022-05-16 出版日期:2022-08-12 发布日期:2023-01-28
通讯作者: 唐飞
作者简介:
作者简介：徐童 (1995—),男,河北邯郸人,博士研究生,研究方向为公共安全与消防工程。E-mail: 76791534@qq.com。
基金资助:
国家自然科学基金资助(52076066); 安徽省自然科学基金资助(2208085J34)

Study on temperature and flame characteristics of ceiling jet induced by wall-attached fire in a tunnel

XU Tong¹(), TANG Fei²^,^**(), HE Qing³

1 Institute of Disaster Prevention Science and Safety Technology, Central South University, Changsha Hunan 410075, China
2 State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei Anhui 230026, China
3 School of Energy and Environment, Anhui University of Technology, Ma'anshan Anhui 243002, China

Received:2022-02-19 Revised:2022-05-16 Online:2022-08-12 Published:2023-01-28
Contact: TANG Fei

摘要/Abstract

摘要：

为探究隧道内贴壁受限火羽流驱动的顶棚射流特性,开展隧道火灾试验,选取4种长宽比的矩形火源,分析3种燃烧器上表面与隧道顶棚的距离和4组火源功率对顶棚下方火焰蔓延及温度分布的影响特征。结果表明:随着火源功率增大、燃烧器上表面与隧道顶棚距离的减小,隧道顶棚横向和纵向温度升高;燃烧器长宽比增加,顶棚射流横向火焰的蔓延长度及横向温度也增大,而纵向火焰长度减小;不同长宽比对应的纵向火焰长度差值随火源功率增加而增大,最大值为0.36 m。

关键词: 隧道火灾, 顶棚射流, 贴壁火源, 温度分布, 火焰蔓延长度

Abstract:

In order to study the ceiling jet characteristics induced by the wall-attached fire in a tunnel, tunnel fire experiments were conducted. Four rectangular fire sources with different aspect ratios were selected, and the influence of three source-ceiling distances and four heat release rates on flame spread and temperature distribution under celling were analyzed. The research found that with the increase in heat release rates and decrease of the source-ceiling distance, the temperature of the tunnel ceiling increases in both transverse and longitudinal directions. As the aspect ratio of the burner increases, the spread length and transverse temperature of ceiling jet transverse flame also increase, while the longitudinal flame length decreases. Meantime, the longitudinal flame length difference of different aspect ratios increases with the heat release rates, and the maximum value is 0.36 m.

Key words: tunnel fire, ceiling jet, wall-attached fire, temperature distribution, flame spread length

徐童, 唐飞, 何清. 隧道内贴壁火顶棚射流温度及火焰特性研究[J]. 中国安全科学学报, 2022, 32(7): 93-97.

XU Tong, TANG Fei, HE Qing. Study on temperature and flame characteristics of ceiling jet induced by wall-attached fire in a tunnel[J]. China Safety Science Journal, 2022, 32(7): 93-97.

图/表 6

图1

图2

图3

图4

图5

图6

参考文献 15

[1]	孙少华, 程家骥, 丛北华, 等. 强制通风对隧道起火影响的全尺寸试验研究[J]. 中国安全科学学报, 2018, 28(10): 56-61. doi: 10.16265/j.cnki.issn1003-3033.2018.10.010
	SUN Shaohua, CHENG Jiaji, CONG Beihua, et al. Full-scale experimental study on effects of forced ventilation on tunnel fire[J]. China Safety Science Journal, 2018, 28(10): 56-61. doi: 10.16265/j.cnki.issn1003-3033.2018.10.010
[2]	ALPERT L R. Turbulent ceiling-jet induced by large-scale fires[J]. Combustion Science and Technology, 1975, 11(5/6): 197-213. doi: 10.1080/00102207508946699
[3]	HESKESTAD G, HAMADA T. Ceiling jets of strong fire plumes[J]. Fire Safety Journal, 1993, 21:69-82. doi: 10.1016/0379-7112(93)90005-B
[4]	KURIOKA H, OKA Y, SATOH H, et al. Fire properties in near field of square fire source with longitudinal ventilation in tunnels[J]. Fire Safety Journal, 2003, 38(4): 319-340. doi: 10.1016/S0379-7112(02)00089-9
[5]	马砺, 李超华, 张鹏宇, 等. 封堵比例对隧道火灾顶棚温度分布的影响[J]. 中国安全科学学报, 2020, 30(2): 83-89.
	MA Li, LI Chaohua, ZHANG Pengyu, et al. Influence of sealing ratio on ceiling temperature distribution of tunnel fire[J]. Fire Safety Science Journal, 2020, 30(2): 83-89.
[6]	TANG Fei, DENG Lei, CHEN Lei, et al. Effects of burner aspect ratio on heat flux distributions beneath unconfined ceilings with different inclination angles[J]. Combustion and Flame, 2021, 228: 99-106. doi: 10.1016/j.combustflame.2021.01.034
[7]	ZHANG Xiaochun, TAO Haowen, XU Wenbin, et al. Flame extension lengths beneath an inclined ceiling induced by rectangular-source fires[J]. Combustion and Flame, 2017, 176: 349-357. doi: 10.1016/j.combustflame.2016.11.004
[8]	ZHANG Xiaochun, TAO Haowen, ZHANG Zijian, et al. Temperature profile beneath an inclined ceiling induced by plume impingement of gas fuel jet flame[J]. Fuel, 2018, 223: 408-413. doi: 10.1016/j.fuel.2018.03.026
[9]	QUINTIERE J G. Scaling applications in fire research[J]. Fire Safety Journal, 1989, 15(1): 3-29. doi: 10.1016/0379-7112(89)90045-3
[10]	LI Yingzhen, INGASON H. Overview of research on fire safety in underground road and railway tunnels[J]. Tunnelling and Underground Space Technology, 2018, 81: 568-589. doi: 10.1016/j.tust.2018.08.013
[11]	OTSU N. A threshold selection method from gray-level histograms[J]. IEEE Transactions on Systems Man Cybernetics Systems, 2007, 9(1): 62-66.
[12]	YOU H Z, FAETH G M. Ceiling heat transfer during fire plume and fire impingement[J]. Fire and Materials, 1979, 3: 140-147. doi: 10.1002/fam.810030305
[13]	HASEMI Y J, TOKUNAGA T. Some experimental aspects of turbulent diffusion flames and buoyant plumes from fire sources against a wall and in a corner of walls[J]. Combustion Science and Technology, 1984, 40(1/2/3/4): 1-18. doi: 10.1080/00102208408923795
[14]	HU Longhua, LI Yingzhen, HUO Ran, et al. Experimental studies on the rise-time of buoyant fire plume fronts induced by pool fires[J]. Journal of Fire Sciences, 2004, 22: 69-86. doi: 10.1177/0734904104039696
[15]	TANG Fei, HU Longhua, ZHANG Xiaochun, et al. Burning rate and flame tilt characteristics of radiation-controlled rectangular hydrocarbon pool fires with cross air flows in a reduced pressure[J]. Fuel, 2015, 139: 18-25. doi: 10.1016/j.fuel.2014.07.093

隧道内贴壁火顶棚射流温度及火焰特性研究

Study on temperature and flame characteristics of ceiling jet induced by wall-attached fire in a tunnel

RichHTML

PDF

可视化

摘要/Abstract

引用本文

使用本文

图/表 6

参考文献 15

相关文章 15

编辑推荐

Metrics

本文评价

[1]	阳东, 李萍. 抑制倾斜隧道烟气流动热压主导模式的临界风压[J]. 中国安全科学学报, 2022, 32(5): 41-47.
[2]	高云骥, 罗越扬, 李智胜, 张玉春, 喻洋阳, 李涛. 分岔隧道火灾烟气回流长度及温度分布试验研究[J]. 中国安全科学学报, 2022, 32(3): 109-115.
[3]	姚勇征, 宋恪斌, 史聪灵, 任飞, 李建, 车洪磊. 纵向通风下T型分岔隧道火灾烟气蔓延特性[J]. 中国安全科学学报, 2022, 32(10): 115-120.
[4]	杨宇轩, 程辉航, 龙增, 陈俊沣, 刘畅, 钟茂华. 阻塞效应对隧道火灾烟气温度影响试验研究[J]. 中国安全科学学报, 2022, 32(10): 135-141.
[5]	陶亮亮, 曾艳华, 刘振撼, 彭俊钦, 周小涵. 空气幕对地铁隧道火灾温度及流场的影响研究[J]. 中国安全科学学报, 2021, 31(7): 157-163.
[6]	姜学鹏, 陈欣格, 郭昆. 侧部点式排烟隧道火灾临界风速研究[J]. 中国安全科学学报, 2021, 31(3): 105-111.
[7]	任飞, 史聪灵, 李建, 车洪磊, 胥旋. 半地下有轨电车车站火灾自然排烟模式研究[J]. 中国安全科学学报, 2021, 31(3): 156-161.
[8]	陶亮亮, 王浩然, 刘振撼, 周小涵, 曾艳华. 水幕排烟系统对烟气控制及排烟效率的影响研究[J]. 中国安全科学学报, 2021, 31(2): 120-126.
[9]	张佳庆, 尚峰举, 何旭, 杨寒冰, 孔得朋. 变压器油沸溢池火温度特征及传热模型试验研究^*[J]. 中国安全科学学报, 2021, 31(11): 106-113.
[10]	王钟宽, 粟萌萌, 黄欣, 郑静如, 李子豪, 王国元. 不同坡度隧道火灾自熄现象试验研究[J]. 中国安全科学学报, 2021, 31(1): 186-191.
[11]	杨小龙, 张玉春, 高云骥, 靳开颜, 李智胜, 李涛. 公路隧道火灾烟气层高度判定方法[J]. 中国安全科学学报, 2020, 30(4): 147-153.
[12]	马砺, 李超华, 张鹏宇, 邱贤宗, 赵鑫. 封堵比例对隧道火灾顶棚温度分布的影响[J]. 中国安全科学学报, 2020, 30(2): 79-85.
[13]	姜学鹏, 谢智云, 于思维, 廖湘娟. 水下V形坡隧道烟气温度纵向衰减研究[J]. 中国安全科学学报, 2019, 29(9): 70-76.
[14]	周劼波, 陈国庆, 汪金辉, 陆守香. 航空煤油液面相向传播火焰融合特性试验研究[J]. 中国安全科学学报, 2018, 28(9): 39-44.
[15]	郝彧露, 陈俊敏, 陈柯衡, 李航, 杨明, 李雪. 地下换乘大厅火灾烟气温度分布研究[J]. 中国安全科学学报, 2018, 28(5): 80-85.