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[1]耿萌,刘剑,王东.海拔高度对矿井无轨运输车辆火灾影响模拟研究*[J].中国安全生产科学技术,2021,17(3):59-64.[doi:10.11731/j.issn.1673-193x.2021.03.009]
　GENG Meng,LIU Jian,WANG Dong.Simulation study on influence of altitude on fire of trackless transportation vehicle in mine[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2021,17(3):59-64.[doi:10.11731/j.issn.1673-193x.2021.03.009]
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海拔高度对矿井无轨运输车辆火灾影响模拟研究*
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
17
期数:
2021年3期
页码:
59-64
栏目:
职业安全卫生管理与技术
出版日期:
2021-03-31

文章信息/Info

Title:
Simulation study on influence of altitude on fire of trackless transportation vehicle in mine
文章编号:
1673-193X(2021)-03-0059-06
作者:
耿萌; 刘剑; 王东
（1.辽宁工程技术大学 安全科学与工程学院,辽宁 葫芦岛 125105；
2.辽宁工程技术大学 矿山热动力灾害与防治教育部重点实验室，辽宁 葫芦岛 125105）
Author(s):
GENG Meng;  LIU Jian;  WANG Dong
(1.College of Safety Science and Engineering,Liaoning Technical University,Huludao Liaoning 125105,China;
2.Key Laboratory of Mine Thermomotive Disaster and Prevention,Ministry of Education,Liaoning Technical University,Huludao Liaoning 125105,China)
关键词:
海拔高度; 无轨运输; 燃烧特性; 烟气蔓延; 烟气参数
Keywords:
altitude;  trackless transportation;  combustion characteristic;  smoke spread;  smoke parameter
分类号:
X936
DOI:
10.11731/j.issn.1673-193x.2021.03.009
文献标志码:
A
摘要:
为研究高海拔地区火灾巷道内可燃物燃烧特性、烟气运移及相关烟气参数的变化规律。应用FDS火灾模拟软件建立实际尺寸的巷道无轨运输车辆火灾模型，分别研究海拔高度为0，1 700，3 000，4 000，5 000 m时无轨运输设备的动态燃烧过程；分析不同海拔高度下可燃物的燃烧特性、烟气运移情况及相关烟气参数（CO浓度、温度）的变化规律。结果表明：火灾巷道内烟气逆退距离随海拔的升高而减小；烟气的温度峰值与CO浓度均随海拔的升高而降低，且与海拔高度大致呈线性函数关系；海拔每升高1 000 m，烟流温度峰值降低3%，CO浓度降低0.98%；CO浓度在垂向上分布呈现出明显的分层现象，具有“上高下低”的分布规律；可燃物的最大热释放速率随着海拔的升高呈现出降低的趋势；高海拔地区的火势发展过程往往较低海拔地区的更缓慢，并增加燃料的燃烧时间。研究结果可为后续高海拔地区的矿井火灾研究提供参考。
Abstract:
In order to study the change laws about the combustion characteristics of combustibles,smoke migration and related smoke parameters in the fire roadway at high altitude areas,the FDS fire simulation software was used to establish a realsize fire model of trackless transportation vehicle in the roadway,and the dynamic combustion process of trackless transportation equipment at the altitudes of 0 m,1 700 m,3 000 m,4 000 m,and 5 000 m were studied respectively,then the change laws about the combustion characteristics of combustibles,smoke migration and related smoke parameters including the CO concentration and temperature under different altitudes were analyzed.The results showed that the distance of smoke rollback in the fire roadway decreased with the increase of altitude.Both the peak temperature and CO concentration of smoke decreased with the increase of altitude,and they roughly presented the linear function relationship with the altitude.Every time the altitude increases by 1000 m,the peak smoke temperature decreased by 3%,and the CO concentration decreased by 0.98%.The distribution of CO concentration in the vertical direction showed the obvious stratification phenomenon,with the distribution law of “up high and down low”.In addition,the maximum heat release rate of combustibles presented a decreasing trend as the altitude increased,and the fire development process in high altitude areas tended to be slower than that in lower altitude areas,and the burning time of fuel increased.The research results provide a reference for the further study of mine fires in high altitude areas.

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备注/Memo

备注/Memo:
收稿日期： 2020-09-05
* 基金项目： 国家自然科学基金项目（51774169，51574142）；国家重点研发计划项目（2017YFC0804401）
作者简介： 耿萌，硕士研究生，主要研究方向为矿井火灾防治。
通信作者： 刘剑，博士，教授，主要研究方向为矿井通风与防灭火。
更新日期/Last Update: 2021-04-13