Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Journal of Safety and Environment》 2001-05
Add to Favorite Get Latest Update

INFLUENCE OF IGNITION LOCATION ON EXPLOSION OVERPRESSURE IN COAL MINE BLIND TUNNEL

FENG Chang-gen, CHEN Lin-shun & QIAN Xin-ming (National Key Lab of Explosion and Safety Sciences, Beijing Institute of Technology, Beijing 100081, China)  
There are many factors affecting the damage effect of methane explosion in the tunnels of coal mines including the volume, the concentration of methane, the roughness of the tunnel wall, the initial condition of the gas and so on. The influences of ignition location on the explosion effect in the blind tunnel of coal mines are studied through AutoReaGas simulator in the present paper. The results show that the explosion static overpressure decreases along with the distance, while the dynamic overpressure increases with the distance under the computation condition of this paper. The maximum explosion static overpressure of the same volume of methane shows great difference at different ignition location. Under the same condition, the maximum explosion static overpressure is 10.73 kPa when the ignition location is 5.5 m from the closed end of the tunnel while the maximum explosion static overpressure reaches 23.02 kPa when the ignition location is 0.2 m from the closed end of the tunnel. The conclusion that the closer to the closed end of the ignition location, the greater the overpressure will be at each test gauge can be drawn from this paper. These phenomena reflect the complex mechanism of gas explosion. The results gained can provide valuable references for the analysis of gas explosion accident in the underground tunnel of coal mines.
【Fund】: 国家“九五”科技攻关项目 (编号 :96- 91 8- 0 1 - 0 1 )
【CateGory Index】: TD712
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
【References】
Chinese Journal Full-text Database 2 Hits
1 LI Xiao-dong~1, WANG Jing-yu~1, LIU Qing-ming~21 College of Chemical Engineering and Environment, North University of China, Taiyuan 030051, China;2 State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China;Experimental investigation of propagation parameters through bituminous coal powder clouds in a combustion tube[J];Journal of Safety and Environment;2009-06
2 WANG Jian-hui,LIU Fei,XUE Yi-jiang(The Third Engineer Scientific Research Institute of the Headquarters of the General Staff,Luoyang 471023,Henan,China);PRELIMINARY DISCUSS ON EXPLOSION SUPPRESSION TECHNIQUE OF FLAMMABLE GAS CLOUD[J];Engineering Blasting;2011-02
【Co-references】
Chinese Journal Full-text Database 10 Hits
1 CAI Chuan-hua(Huainan public security official's firefighting branch,Huainan 232001,China);Current application and develepent trend of the technology of the extinguishing aerosol[J];Journal of Anhui Institute of Architecture & Industry(Natural Science);2006-05
2 QIN You-hua & SHEN Zhao-wu(Department of Modern Mechanics, University of Science and Technology of China,Hefei 230026, China)andLU Shou-xiang, ZHANG Li &GUO Zi-ru (Department of Chemical Engineering, Huainan Institute of Technology, Huainan 230021 ,Anhu;EXPERIMENTAL STUDY OF THE EFFECT OF WATER SPRAYS ONGAS FLAME PROPAGATION[J];Journal of Safety and Environment;2001-01
3 SHEN Yu ling & NING Jian guo (National Key Lab of Explosion and Safety Sciences, Beijing Institute of Technology, Beijing 100081, China) and LU Jie (The Taiyuan Coal Gas Company, Taiyuan 030024, China);NUMERICAL SIMULATION OF GASEOUS EXPLOSIONS IN SOME TYPICAL CONDUITS[J];Journal of Safety and Environment;2001-03
4 HU Xiang-yu (National Key Laboratory of Explosion and Safety Sciences, Beijing Institute of Technology, Beijing 100081, China) and ZHANG De-liang (Institute of Mechanics, Chinese Academy of Sciences, Beijing 100080, China);NUMERICAL SIMULATION OF EXPLOSION OF COMBUSTIBLE GASEOUS MIXTURE WITH DETAILED CHEMICAL REACTION MODEL[J];Journal of Safety and Environment;2001-05
5 HU Dong 1,2 , YUAN Chang-ying 3,1 , LI Ping 2, SUN Zhu-mei 1,2 (1 Laboratory of Shock Wave Physics and Detonation Physics Research, Institute of Fluid Physics, CAEP, Mianyang 621900, Sichuan, China; 2 Institute of High Temperature and High Pressure Physics, Sichuan University, Chengdu 610065, China; 3 Civil and Environmental Engineering School, Beijing University of Science and Technology, Beijing 100083, China);INHIBITION OF INERT MATERIALS ON EXPLOSION[J];Journal of Safety and Environment;2003-04
6 WANG Zhi-gang;NI Zhao-peng;WANG Zong--cun;JIANG Ming-li Fire Code Division of Tianjin Fire Research Institute, Tianjin 300381, China;Determination of heat release rate curve when designing fire[J];Journal of Safety and Environment;2004-S1
7 WANG Bao-xing;JING Jian--sheng Tianjin Fire Research Institute, Tianjin 300381, China;Experimental study on main cause of gas explosion in coal mines[J];Journal of Safety and Environment;2004-S1
8 YUAN Bao hui,YUAN Tian you,ZHU Ming wu (Xi′an Modern Chemistry Research Institute, Xi′an 710065,China);Detonation Wave Emissivity and Detonation Temperature Measurements by Imaginary Auxiliary Source Reflection Method[J];CHINESE JOURNAL OF EXPLOSIVES & PROPELLANTS;1999-02
9 Wang Peilan;Wang Haifu;Li Sheng;Zeng Xiangzhi(Beijing Institute of Techno1ogy);A STUDY ON THE PRESSURE AND RATE OF PRESSURE RISE IN ENERGETIC MATERIAL DUSTS[J];Acta Armamentarii;1995-03
10 Zhang Jinglin Xiao Lin Kou Liping Wang Jingyu (Department of Environment and Safety,North China Institute of Technology, Taiyuan, 030051);A STUDY ON THE SUPPRESSION OF GAS-EXPLOSION HAZARDS[J];ACTA ARMAMENTARII;2000-03
【Secondary References】
Chinese Journal Full-text Database 10 Hits
1 ZHU Liang DU Yang JIANG Xin-sheng LIU Zheng-fan(University of Logistical Engineering,PLA,Chongqing 400016);The Equilibrium Pressure Experimental Research in the Buffer of Explosion Suppresser[J];Journal of Chongqing University of Science and Technology(Natural Sciences Edition);2008-06
2 ZHANG Leilei1,TAN Yingxin2,WANG Xinghe3,WANG Gao1(1.National Key Laboratory for Electronic Measurement Technology(North University of China),Taiyuan 030051,China;2.School of Chemical Engineering & Environment,North University of China,Taiyuan 030051,China;3.Shanxi North Jindong Chemical Industry Co.Ltd,Yangquan 045000,China);Combustion Process Test of Mixed Methane-Air Gas with High-Speed Photography[J];Journal of Test and Measurement Technology;2011-03
3 CHEN Xing,WANG Feng-ying,LIU Tian-sheng (North University of China,Taiyuan,Shanxi 030051,China);STUDY OF SUPPRESSION MATERIALS′ CHARACTERISTICS AND EFFECTS ON GAS EXPLOSION[J];Engineering Blasting;2012-01
4 MA Feng JIANG Jun-cheng(School of Urban Construction and Safety Engineering,Nanjing University of Technology Nanjing 210009);Simulation on Pre-mixed Methane-air Explosion in the Linked Vessel With an Inner Obstacle[J];Industrial Safety and Environmental Protection;2008-09
5 ZHENG Chideng WEN Liudong LI Chuanchuan MEI Fuding(Faculty of Engineering,China University of Geosciences Wuhan 430074);Effects of Gas Outburst Cross Section on Counter-current and Study on the Numerical Simulation of Explosion[J];Industrial Safety and Environmental Protection;2012-03
6 LU Dong WANG Jie LI Jin(Tianjin Fire Research Institute of MPS Tianjin 300381);Research on Oil Vapor Explosion of One Hundred Thousand Cubic Meters External Floating Roof Tank[J];Industrial Safety and Environmental Protection;2013-02
7 YUE Jian-ping1,2(1.National Key Laboratory of Gas Disaster Detecting, Preventing and Emergency Controlling,Chongqing 400037,China; 2.Chongqing Research Institute of China Coal Technology & Engineering Group CORP, Chongqing 400039,China);Design and Experimental Study of Prompt Preventing Explosion Valve[J];Journal of Chongqing University of Technology(Natural Science);2013-07
8 TIAN Yuan,WANG Zhong-qi,LIN Hai-yan(State Key Laboratory of Explosion Science and Technology,Beijing institute of Technology,Beijing 100081,China);Numerical simulation over the impact of the cloud status on the detonation pressure field[J];Journal of Safety and Environment;2013-04
9 TAN Ying-xin,YU Cun-juan(School of Chemical Engineering and Environment,North university of China,Taiyuan 030051,China);Test on methane flame velocity in horizontal tube with obstacles[J];测试科学与仪器(英文版);2012-04
10 WANG Jian,CAO Xiong(College of Chemical Engineering and Enviroment,North University of China,Taiyuan Shanxi 030051,China);Theory,experiment and application technique of domestic coal gas[J];Shanxi Chemical Industry;2009-02
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved