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[1]张亦翔,李玉星,耿晓茹,等.障碍物对甲烷水平喷射火燃烧特性的影响[J].中国安全生产科学技术,2018,14(7):54-60.[doi:10.11731/j.issn.1673-193x.2018.07.008]
　ZHANG Yixiang,LI Yuxing,GENG Xiaoru,et al.Influence of obstacles on combustion characteristics of horizontal jet fire by methane[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2018,14(7):54-60.[doi:10.11731/j.issn.1673-193x.2018.07.008]
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障碍物对甲烷水平喷射火燃烧特性的影响
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
14
期数:
2018年7期
页码:
54-60
栏目:
学术论著
出版日期:
2018-07-31

文章信息/Info

Title:
Influence of obstacles on combustion characteristics of horizontal jet fire by methane
文章编号:
1673-193X(2018)-07-0054-07
作者:
张亦翔1; 2; 李玉星1; 2; 耿晓茹1; 2; 刘翠伟1; 2; 王武昌1; 2; 朱建鲁1; 2
（1.中国石油大学（华东） 储运与建筑工程学院，山东 青岛 266580；2.山东省油气储运安全省级重点实验室，山东 青岛 266580）
Author(s):
ZHANG Yixiang1; 2;  LI Yuxing1; 2;  GENG Xiaoru1; 2;  LIU Cuiwei1; 2;  WANG Wuchang1; 2;  ZHU Jianlu1; 2
(1. College of Pipeline and Civil Engineering, China University of Petroleum, Qingdao Shandong 266580, China;2. Shandong Provincial Key Laboratory of Oil and Gas Storage and Transportation Safety, Qingdao Shandong 266580, China)
关键词:
甲烷喷射火; 障碍物; 水平方向; 火焰形状; 温度和辐射
Keywords:
methane jet fire;  obstacle;  horizontal direction;  flame shape;  temperature and thermal radiation
分类号:
X932；TK16
DOI:
10.11731/j.issn.1673-193x.2018.07.008
文献标志码:
A
摘要:
为了对比不同障碍物对甲烷水平喷射火几何特征和燃烧特性的影响，分别采用高度为120 ，180 和240 mm的障碍物进行室内实验，分析了在3种不同流量工况下火焰的轴向温度及热辐射的分布规律。研究结果表明：障碍物能有效阻挡火焰在水平方向的传播；在相同流量下障碍物越高，对控制火焰传播的效果越好；当障碍高度h=240 mm时，火焰几何尺寸下降最大，障碍物后方的温度和热辐射分别下降了88.5%和64.1%；随着障碍物与泄漏孔间距的增加，障碍物前后两侧温差逐渐减小，对火焰传播控制效果减弱，因此障碍物布置在持续燃烧区域之前对火焰的控制效果最好。研究结果可为管道和储罐发生泄漏事故的应急处置和防护设施的设计提供参考。
Abstract:
In order to compare the influence of different obstacles on the geometrical and combustion characteristics of the horizontal jet fire by methane, the laboratory experiments were carried out by using the obstacles with the height of 120 mm, 180 mm and 240 mm respectively, and the distribution laws of axial temperature and thermal radiation of the flame under three different conditions of flow rate were analyzed. The results showed that the obstacle could block the flame propagation in the horizontal direction effectively. Under the same flow rate, the higher the obstacle, the better the effect of controlling the flame propagation. When the height of obstacle h was 240 mm, the decrease of the geometrical size of flame was the greatest, and the temperature and radiation behind the obstacle decreased by 88.5% and 64.1% respectively. With the increase of the distance between the obstacle and the leakage hole, the temperature difference between the front and back sides of the obstacle decreased gradually, and the control effect on the flame propagation weakened. So the control effect on the flame was the best when laying the obstacles in front of the continuous combustion region. The results can provide reference for the emergency disposal of leakage accidents and the design of protection facilities for the pipelines and storage tanks.

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备注/Memo

备注/Memo:
国家重点研发计划项目（2016YFC0802104）；国家重点研发计划项目（2017YFC0805800）；山东省重点研发计划项目（2017GSF220007）
更新日期/Last Update: 2018-08-09