Influence of installation of perforated obstacles in pipelines on explosive characteristics of combustible gases

Zengliang ZHANG; Xin WANG; Haoping WANG

doi:10.11949/0438-1157.20190469

您当前的位置：

首页 >

文章列表页 >

Influence of installation of perforated obstacles in pipelines on explosive characteristics of combustible gases

Process safety | 更新时间：2020-06-24

- Influence of installation of perforated obstacles in pipelines on explosive characteristics of combustible gases
- CIESC Journal Vol. 70, Issue 11, Pages: 4497-4503(2019)
- 作者机构：
  
  College of Environment and Safety Engineering，Qingdao University of Science and Technology, Qingdao 266000,Shandong, China
- 作者简介：
- 基金信息：
- DOI：10.11949/0438-1157.20190469
  CLC： O 38
- Received：06 May 2019，
  
  Revised：2019-07-23，
  
  Published：05 November 2019
- 稿件说明：
移动端阅览
张增亮, 王昕, 王昊平. 带孔障碍物对管道中可燃气体爆炸特性的影响[J]. 化工学报, 2019, 70(11): 4497-4503

ZHANG Zengliang, WANG Xin, WANG Haoping. Influence of installation of perforated obstacles in pipelines on explosive characteristics of combustible gases[J]. CIESC Journal, 2019, 70(11): 4497-4503
张增亮, 王昕, 王昊平. 带孔障碍物对管道中可燃气体爆炸特性的影响[J]. 化工学报, 2019, 70(11): 4497-4503 DOI： 10.11949/0438-1157.20190469.

ZHANG Zengliang, WANG Xin, WANG Haoping. Influence of installation of perforated obstacles in pipelines on explosive characteristics of combustible gases[J]. CIESC Journal, 2019, 70(11): 4497-4503 DOI： 10.11949/0438-1157.20190469.

摘要

以甲烷为代表性气体，研究了在10%浓度甲烷的闭口管道中设置不同孔型、不同尺寸的带孔障碍物对可燃气体爆炸火焰和压力传播的影响。研究发现：设置障碍物隔板时，爆炸超压在穿过障碍物前缓慢增长，并受障碍物影响继续增大，在到达盲板前快速降低。火焰传播速度先缓慢增加，并在通过障碍物隔板前下降，在穿过开孔后急剧上升至最大值。随着障碍物隔板的开孔面积减小，其造成的气流喷射作用会明显增强，负压抽吸作用造成的影响增大，会导致障碍物前后超压分布更加不均匀，在障碍物隔板前的火焰传播速度下降幅度增加。同阻塞率条件下，最大超压和火焰传播速度均受到不同孔型的影响，火焰在穿过带孔障碍物隔板时，圆形开孔相对方形开孔和正三角形开孔更符合火焰球形发展规律，正三角形孔内切圆比方形孔小，火焰受到的影响更大，湍流更加明显，导致火焰速度和压力上升更加明显。不同孔型的最大超压关系为

三角孔

方孔

圆孔

空载管道

，火焰传播速度关系为

三角孔

方孔

圆孔

空载管道

。

Abstract

Using methane as a representative gas

the effects of different hole types and different sizes of perforated obstacles on the explosive flame and pressure propagation of combustible gas were studied in a closed conduit of 10% methane. The study found that when the obstacle partition is set

the explosion overpressure slowly grows in front of the obstacle

and continues to increase by the obstacle

and rapidly decreases before reaching the blind plate. The flame propagation rate increases slowly first and falls before passing through the obstacle partition

and rises sharply to the maximum after passing through the opening. As the opening area of the obstacle partition is reduced

the jetting effect caused by the airflow is obviously enhanced

and the influence caused by the negative pressure suction is increased

which leads to a more uneven distribution of the overpressure before and after the obstacle

and the obstacle is separated. The flame propagation speed in front of the plate decreases. Under the same opening area

the maximum overpressure and flame propagation speed are affected by different hole types. When the flame passes through the perforated obstacle partition

the circular opening is more in line with the flame shape than the square opening and the regular triangular opening. The law of development

the inner circular hole is smaller than the square hole

the flame is more affected

the turbulence is more obvious

and the flame speed and pressure rise are more obvious. The maximum overpressure relationship of different hole types is

triangle

square

round

empty

flame propagation speed relationship is

triangle

square

round

empty

关键词

Keywords

references

丁小勇 , 谭迎新 , 李媛 . 水平管道中立体障碍物对瓦斯爆炸特性的影响 [J]. 煤矿安全 , 2012 , 43 ( 8 ): 4 - 7 .

Ding X Y , Tan Y X , Li Y . Influence of three-dimensional obstacles in horizontal pipelines on gas explosion characteristics [J]. Coal Mine Safety , 2012 , 43 ( 8 ): 4 - 7 .

Fairweather M , Hargrave G K , Ibrahim S S , et al . Studies of premixed flame propagation in explosion tubes [J]. Combustion & Flame , 1999 , 116 ( 4 ): 504 - 518 .

Oh K H , Kim H , Kim J B , et al . A study on the obstacle-induced variation of the gas explosion characteristics [J]. Journal of Loss Prevention in the Process Industries , 2001 , 14 ( 6 ): 597 - 602 .

Ibrahim S S , Masri A R . The effects of obstructions on overpressure resulting from premixed flame deflagration [J]. Journal of Loss Prevention in the Process Industries , 2001 , 14 ( 3 ): 213 - 221 .

Masri A R , Ibrahim S S , Nehzat N , et al . Experimental study of premixed flame propagation over various solid obstructions [J]. Experimental Thermal & Fluid Science , 2000 , 21 ( 1 ): 109 - 116 .

Phylaktou H . The acceleration of flame propagation in a tube by an obstacle [J]. Combustion and Flame , 1991 , 10 ( 6 ): 363 - 379 .

吴红波 , 陆守香 , 张立 . 障碍物对瓦斯煤尘火焰传播过程影响的实验研究 [J]. 矿业安全与环保 , 2004 , 1 ( 3 ): 6 - 8 .

Wu H B , Lu S X , Zhang L . Experimental study on influence of obstacles on flame propagation process of gas and coal dust [J]. Mining Safety and Environmental Protection , 2004 , 1 ( 3 ): 6 - 8 .

李国庆 , 杜扬 , 齐圣 , 等 . 障碍物对油气-空气混合气体泄压爆炸火焰传播特性影响 [J]. 中国安全生产科学技术 , 2017 , 13 ( 1 ): 163 - 168 .

Li G Q , Du Y , Qi S , et al . Influence of obstacles on flame propagation characteristics of oil-gas-air mixture explosion under pressure relief [J]. China Science and Technology for Safe Production , 2017 , 13 ( 1 ): 163 - 168 .

林柏泉 , 周世宁 , 张仁贵 . 障碍物对瓦斯爆炸过程中火焰和爆炸波的影响 [J]. 中国矿业大学学报 , 1999 , 29 ( 2 ): 6 - 9 .

Lin B Q , Zhou S N , Zhang R G . Influence of obstacles on flame and explosion wave in gas explosion [J]. Journal of China University of Mining and Technology , 1999 , 29 ( 2 ): 6 - 9 .

杨凡 , 陶刚 , 张礼敬 , 等 . 障碍物对气体爆炸压力场影响数值模拟 [J]. 中国安全生产科学技术 , 2013 , 9 ( 2 ): 59 - 63 .

Yang F , Tao G , Zhang L J , et al . Numerical simulation of influence of obstacles on gas explosion pressure field [J]. China Science and Technology of Production Safety , 2013 , 9 ( 2 ): 59 - 63 .

王志青 , 谭迎新 . 障碍物形状对瓦斯爆炸影响的研究 [J]. 煤炭工程 , 2010 , 41 ( 9 ): 76 - 78 .

Wang Z Q , Tan Y X . Study on influence of obstacle shape on gas explosion [J]. Coal Engineering , 2010 , 41 ( 9 ): 76 - 78 .

秦涧 , 谭迎新 , 王志青 , 等 . 管道内障碍物形状对瓦斯爆炸影响的实验研究 [J]. 煤炭科学技术 , 2012 , 40 ( 2 ): 60 - 62 .

Qin J , Tan Y X , Wang Z Q , et al . Experimental study on influence of obstacle shape in pipeline on gas explosion [J]. Coal Science Technology , 2012 , 40 ( 2 ): 60 - 62 .

王成 , 回岩 , 胡斌斌 , 等 . 障碍物形状对瓦斯爆炸火焰传播过程的影响 [J]. 北京理工大学学报 , 2015 , 35 ( 7 ): 661 - 665,676 .

Wang C , Hui Y , Hu B B , et al . Influence of obstacle shape on flame propagation process of gas explosion [J]. Journal of Beijing Institute of Technology , 2015 , 35 ( 7 ): 661 - 665,676 .

王海滨 , 尉存娟 . 障碍物影响下管道内气体爆炸对动物杀伤研究 [J]. 中北大学学报 , 2011 , 32 ( 6 ): 727 - 731 .

Wang H B , Wei C J . Study on the killing of animals by gas explosion in pipelines affected by obstacles [J]. Journal of North University of China , 2011 , 32 ( 6 ): 727 - 731 .

何学秋 , 杨艺 , 王恩元 , 等 . 障碍物对瓦斯爆炸火焰结构及火焰传播影响的研究 [J]. 煤炭学报 , 2004 , 27 ( 2 ): 186 - 189 .

He X Q , Yang Y , Wang E Y , et al . Study on the influence of obstacles on flame structure and flame propagation of gas explosion [J]. Journal of China Coal Society , 2004 , 27 ( 2 ): 186 - 189 .

唐平 , 蒋军成 . 障碍物对采用泄爆管泄放气体爆炸影响的数值模拟 [J]. 安全与环境学报 , 2011 , 11 ( 6 ): 151 - 156 .

Tang P , Jiang J C . Numerical simulation of impact of obstacles on gas explosion discharged by explosion discharging tube [J]. Journal of Safety and Environment , 2011 , 11 ( 6 ): 151 - 156 .

苏越峰 . 障碍物对爆炸冲击波传播特性的影响研究 [J]. 煤炭技术 , 2017 , 36 ( 2 ): 52 - 53 .

Su Y F . Study on influence of obstacles on propagation characteristics of explosion shock wave [J]. Coal Technology , 2017 , 36 ( 2 ): 52 - 53 .

尉存娟 , 谭迎新 , 张建忠 , 等 . 不同间距障碍物下瓦斯爆炸特性的实验研究 [J]. 中北大学学报(自然科学版) , 2015 , 36 ( 2 ): 188 - 190,196 .

Wei C J , Tan Y X , Zhang J Z , et al . Experimental study on gas explosion characteristics under obstacles with different spacing [J]. Journal of North University of China (Natural Science Edition) , 2015 , 36 ( 2 ): 188 - 190,196 .

郭丹彤 , 吕淑然 , 杨凯 . 障碍物布置对气体爆炸压力场的影响效果研究 [J]. 中国安全生产科学技术 , 2015 , 11 ( 9 ): 88 - 93 .

Guo D T , Lyu S R , Yang K . Study on the effect of obstacle arrangement on gas explosion pressure field [J]. China Science and Technology for Safe Production , 2015 , 11 ( 9 ): 88 - 93 .

余明高 , 袁晨樵 , 郑凯 . 管道内障碍物对加氢甲烷爆炸特性的影响 [J]. 化工学报 , 2016 , 67 ( 12 ) : 5311 - 5319 .

Yu M G , Yuan C Q , Zheng K . Effects of hydrogen addition on explosion characteristics of gas under condition of obstacles [J]. CIESC Journal , 2016 , 67 ( 12 ) : 5311 - 5319 .

余明高 , 纪文涛 , 温小萍 . 交错障碍物对瓦斯爆炸的实验研究 [J]. 中国矿业大学学报 , 2013 , 42 ( 3 ): 349 - 354 .

Yu M G , Ji W T , Wen X P . Experimental study on gas explosion caused by staggered obstacles [J]. Journal of China University of Mining and Technology , 2013 , 42 ( 3 ): 349 - 354 .

尉存娟 , 谭迎新 , 袁宏甦 . 水平管道内障碍物数量对爆炸过程的影响研究 [J]. 中国安全科学学报 , 2012 , 22 ( 6 ): 60 - 64 .

Wei C J , Tan Y X , Yuan H S . Study on the influence of the number of obstacles in horizontal pipelines on explosion process [J]. China Safety Science Journal , 2012 , 22 ( 6 ): 60 - 64 .

Hall S , Masri A R , Yaroshchyk P , et al . Effects of position and frequency of obstacles on turbulent premixed propagating flames [J]. Combustion and Flame , 2009 , 156 ( 8 ): 439 - 446 .

Gubba S , Ibrahims S , Malalasekera W , et al . Measures and LES calculations of turbulent premixed flame propagation past repeated obstacles [J]. Combustion and Flame , 2011 , 158 ( 12 ): 2465 - 2481 .

Park D , Lee Y S , Green A R . Experiments on the effects of multiple obstacles invented explosion chambers [J]. Journal of Hazardous Materials , 2008 , 153 ( 5 ): 340 - 350 .

Alharbi A , Masri A R , Ibrhaim S . Turbulent premixed flames of CNG,LPG,and H 2 propagating past repeated obstacles [J]. Experimental Thermal and Fluid Science , 2014 , 56 ( 1 ): 2 - 8 .

高永格 , 孟晓强 , 张纪云 . 基于巷道不同截面内瓦斯爆炸传播规律的研究 [J]. 煤炭与化工 , 2016 , 39 ( 4 ): 1 - 3 .

Gao Y G , Meng X Q , Zhang J Y . Study on explosion propagation law of nevas at different sections of roadway [J]. Coal and Chemical Industry , 2016 , 39 ( 4 ): 1 - 3 .

周宁 , 刘超 , 王文秀 , 等 . 置障管道内天然气爆炸过程微观特性数值模拟研究 [J]. 工业安全与环保 , 2017 , 43 ( 11 ): 9 - 12 .

Zhou N , Liu C , Wang W X , et al . Numerical simulation of micro-characteristics of natural gas explosion in barrier-free pipelines [J]. Industrial Safety and Environmental Protection , 2017 , 43 ( 11 ): 9 - 12 .

张雷 , 郭子如 , 丁以斌 . 障碍物立体结构对火焰传播速度和超压的影响 [J]. 火工品 , 2007 , 14 ( 4 ): 35 - 37 .

Zhang L , Guo Z R , Ding Y B . Effect of obstacle stereo structure on flame propagation velocity and overpressure [J]. Initiating Explosive Devices , 2007 , 14 ( 4 ): 35 - 37 .

张增亮 . 矿井复杂结构的瓦斯爆炸动力学特征研究 [D]. 北京 : 中国矿业大学 , 2013 .

Zhang Z L . Study on dynamic characteristics of gas explosion in complex structure of mine [D]. Beijing : China University of Mining and Technology , 2013 .

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Study on reduction performance and kinetics of Sr-modified LaFeO3 for methane chemical looping reforming

Large eddy simulation on methane-air explosion using thickened flame model coupled with reduced reaction mechanism

Study on effects of C2H6/C3H8 on explosion limits and chemical kinetics

Pyrolysis characteristics of oil shale and analysis of methane evolution mechanism

Coupled relationship between flame and overpressure of gas explosion inhibited by NaHCO3

Related Author

MA Haotian

JING Tirui

LIU Chengcheng

YUSAN Turap

ZHANG Zhe

WANG Yidi

WANG Qinghong

CHEN Chunmao

Related Institution

State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering and Environment, China University of Petroleum

School of Environment, Tsinghua University

School of Environmental & Safety Engineering, Changzhou University

State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University

School of Safety Science and Engineering, Xi’an University of Science and Technology

⁰