|本期目录/Table of Contents|

[1]丁翠.火灾时期矿山通风巷道“特征环”与“关键环”的分布特征研究[J].中国安全生产科学技术,2017,13(8):55-60.[doi:10.11731/j.issn.1673-193x.2017.08.009]
　DING Cui.Study on distribution characteristics of "characteristic ring" and "key ring" in mine ventilation roadway during fire[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2017,13(8):55-60.[doi:10.11731/j.issn.1673-193x.2017.08.009]
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火灾时期矿山通风巷道“特征环”与“关键环”的分布特征研究
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
13
期数:
2017年8期
页码:
55-60
栏目:
现代职业安全卫生管理与技术
出版日期:
2017-08-31

文章信息/Info

Title:
Study on distribution characteristics of "characteristic ring" and "key ring" in mine ventilation roadway during fire
文章编号:
1673-193X(2017)-08-0055-06
作者:
丁翠
（中国劳动关系学院 安全工程系，北京 100048）
Author(s):
DING Cui
(Department of Safety Engineering, China University of Labor Relations, Beijing 100048, China)
关键词:
火灾; 通风; 紊流; “特征环”; “关键环”
Keywords:
fire;  ventilation;  turbulence;  “characteristic ring”;  “key ring”
分类号:
TD721
DOI:
10.11731/j.issn.1673-193x.2017.08.009
文献标志码:
A
摘要:
为研究火灾时期矿山通风巷道风流的流动特性，基于水平巷道及火灾的物理数学模型，采用数值分析方法，研究分析火灾时期巷道内紊流充分发展截面上“特征环”与“关键环”的分布规律。结果表明：同一火灾强度和同一通风风速下，通风巷道内风速“特征环”分布特征分别存在临界风速值和临界火灾强度值；矿井火灾时期，通风风速与火灾强度均是影响巷道内风速“特征环”分布的关键因素；当巷道内通风风速大于或等于5 m/s时，火灾下风流平均风速点的位置可由正常通风时期的“关键环”特征方程进行计算。
Abstract:
In order to study the flow characteristic of airflow in the mine ventilation roadway during fire, based on the physical and mathematical models of horizontal roadway and fire, the distribution laws of "characteristic ring" and "key ring" on the fully developed cross section of turbulence in the roadway during fire were analyzed by using the numerical simulation method. The results showed that the distribution characteristics of wind speed "characteristic ring" in the ventilation roadway during fire exist the critical wind speed and the critical fire intensity respectively under the same fire intensity and ventilation wind speed. Both the ventilation wind speed and the fire intensity are the key factors influencing the distribution of wind speed "characteristic ring" in the roadway during fire. When the ventilation wind speed in the roadway is larger than or equal to 5 m/s, the locations of average wind speed points for the airflow during fire can be calculated by the characteristic equations of "key ring" during the normal ventilation period.

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备注/Memo

备注/Memo:
中央高校基本科研业务专项资金项目（17ZY001）
更新日期/Last Update: 2017-09-11