全尺寸巷道阻燃输送带火灾烟气温度变化特征试验研究

doi:10.16265/j.cnki.issn1003-3033.2025.05.0987

中国安全科学学报 ›› 2025, Vol. 35 ›› Issue (5): 39-46.doi: 10.16265/j.cnki.issn1003-3033.2025.05.0987

全尺寸巷道阻燃输送带火灾烟气温度变化特征试验研究

王玉怀¹(), 张思佳¹, 李东明²^,^**(), 黄刚³, 张文明⁴

¹ 华北科技学院矿山安全学院,河北三河 065201
² 华北科技学院安全工程学院,河北三河 065201
³ 中铁十四局集团有限公司,山东济南 250000
⁴ 开滦(集团)有限责任公司,河北唐山 063018

收稿日期:2024-12-18 修回日期:2025-02-20 出版日期:2025-05-28
通信作者:
^** 李东明(1977—),男,河北三河人,硕士,讲师,主要从事安全工程及工效学等方面的研究。E-mail:bzon@163.com。
作者简介:
王玉怀 (1966—),男,河北衡水人,博士,教授,主要从事煤矿火灾防治等方面的研究。E-mail:785281919@qq.com。
王玉怀, 教授
李东明, 讲师
黄刚, 工程师
张文明, 高级工程师

Experimental study on fire flue-gas temperature change flame retardant conveyor belt in full-scale roadway

WANG Yuhuai¹(), ZHANG Sijia¹, LI Dongming²^,^**(), HUANG Gang³, ZHANG Wenming⁴

¹ School of mine Safety, North China Institute of Science and Technology, Sanhe Hebei 065201, China
² School of Safety Engineering, North China Institute of Science and Technology, Sanhe Hebei 065201, China
³ China Railway 14^th Bureau Group Co., Ltd., Jinan Shandong 250000, China
⁴ Kailuan (Group) Co., Ltd., Tangshan Hebei 063018, China

Received:2024-12-18 Revised:2025-02-20 Published:2025-05-28

摘要/Abstract

摘要： 为探究阻燃输送带火灾条件下巷道内不同地点烟气温度的变化特征,在全尺寸巷道中开展阻燃输送带火灾试验,首先,在全尺寸巷道内沿轴向布设6个测温断面,在每个断面设置5个热电偶记录阻燃输送带燃烧过程中不同位置的烟气温度;然后,在风速为1.2 m/s条件下,利用全尺寸巷道对4 m×1.2 m(长×宽)钢丝绳芯阻燃输送带开展火灾特性试验。结果表明:火源下游区域烟气温度及升温进程主要受输送带火源距离的影响。距离火源越近,阻燃输送带燃烧产生的热效应越强,相应地点烟气温度越高,由于输送带火灾属于非稳态燃烧过程,局部断面烟气温度与火源距离之间呈现非线性关系;处同一高度的水平巷道中,两侧烟气温度高于巷道中间,且随着与火源距离的增大,巷道中部与两侧烟气温差逐步减小;在火源下游沿巷道纵向范围内,烟气表现出分层状态,烟气温度从巷道顶板向底板逐步降低,不同高度烟气层之间存在显著的温度差。随着火源距离的增加,烟气层之间温度差逐步减小。

关键词: 阻燃输送带, 输送带火灾, 烟气温度, 全尺寸巷道, 火源距离

Abstract:

In order to investigate the variation characteristics of flue-gas temperature at different locations of flame retardant belt during a fire, a fire test was conducted on flame-retardant conveyor belts in a full-scale roadway. First, six temperature measurement sections were arranged along the axial direction in the roadway, and five thermocouples were installed at each section to record the flue-gas temperature at different locations during the combustion process. Then, a fire characteristic test was conducted on a 4 m × 1.2 m (length × width) steel wire rope core flame retardant belt under the condition of wind speed of 1.2 m/s in the full-scale roadway. The experimental results show that the distance from the fire source determines the flue-gas temperature and temperature rise process in the downstream area of the fire source. The closer to the fire source, the stronger the heat effect caused by the combustion of flame retardant tape, and the higher the flue-gas temperature at the corresponding location. Since the tape fire is an unsteady combustion process, and the change in smoke temperature at different sections after a period of time is nonlinear related to the distance from the fire source. In a horizontal roadway at the same height, the flue-gas temperature on both sides of the roadway is higher than that in the middle of the roadway. As the distance from the fire source increases, the temperature difference between the middle and the sides of the roadway gradually decreases. In the longitudinal range of the roadway downstream of the fire source, the flue-gas exhibits a str.pngied state, and the flue-gas temperature decreases gradually from the roof to the floor of the roadway. There is an obvious temperature difference between flue-gas layers at different heights, and the temperature difference between the flue-gas layers decreases gradually with increasing distance from the fire source.

Key words: flame retardant belt, belt fire, flue-gas temperature, full-scale roadway, fire source distance

中图分类号:

X932爆炸安全与防火、防爆

王玉怀, 张思佳, 李东明, 黄刚, 张文明. 全尺寸巷道阻燃输送带火灾烟气温度变化特征试验研究[J]. 中国安全科学学报, 2025, 35(5): 39-46.

WANG Yuhuai, ZHANG Sijia, LI Dongming, HUANG Gang, ZHANG Wenming. Experimental study on fire flue-gas temperature change flame retardant conveyor belt in full-scale roadway[J]. China Safety Science Journal, 2025, 35(5): 39-46.

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测点	1	2	3	4	5	6
最高温度/℃	226	191	106	130	83	未出现
时间/s	906	1 002	1 008	996	1 026	—

全尺寸巷道阻燃输送带火灾烟气温度变化特征试验研究

Experimental study on fire flue-gas temperature change flame retardant conveyor belt in full-scale roadway

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