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1.中国石油大学(北京)安全与海洋工程学院,北京 102249
2.深圳市燃气集团股份有限公司,深圳 518049
3.中国安全生产科学研究院,北京 100012
Received:29 June 2022,
Revised:2022-11-12,
Published:15 December 2023
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金友平,帅健,王旭等.狭长受限空间内燃气燃爆灾害演化规律研究[J].防灾减灾工程学报,2023,43(06):1366-1376.
JIN Youping,SHUAI Jian,WANG Xu,et al.Study on Evolution Law of Gas Explosion Disaster in Narrow and Confined Space[J].Journal of Disaster Prevention and Mitigation Engineering,2023,43(06):1366-1376.
金友平,帅健,王旭等.狭长受限空间内燃气燃爆灾害演化规律研究[J].防灾减灾工程学报,2023,43(06):1366-1376. DOI: 10.13409/j.cnki.jdpme.20220629004.
JIN Youping,SHUAI Jian,WANG Xu,et al.Study on Evolution Law of Gas Explosion Disaster in Narrow and Confined Space[J].Journal of Disaster Prevention and Mitigation Engineering,2023,43(06):1366-1376. DOI: 10.13409/j.cnki.jdpme.20220629004.
为研究狭长受限空间内燃气燃爆灾害的演化规律,采用三维仿真软件FLACS分别建立全密闭和半密闭两种受限空间模型,对比研究了两种模型的火焰传播形态,并分析了两种模型在不同工况条件下的燃爆灾害规律。结果表明:两种模型的燃爆火焰形态显著不同;对于全密闭空间,长宽比的增大会促进火焰传播同时增大爆炸压力值的波动性,稍高于化学当量比的甲烷浓度产生的爆炸压力最大,并且富燃爆炸比贫燃爆炸的压力要高;对于半密闭空间,气云体积的增大加大了火焰传播距离的同时也提高了开口端的火焰速度,障碍物数量的增多使爆炸火焰呈现先促进后削弱的现象,并加大了最大爆炸压力和燃爆速度的变化幅度。
To study the evolution law of gas combustion and explosion disaster in narrow and long confined space, the three-dimensional simulation software FLACS was used to establish two confined space models, i.e., the fully confined space model and the semi-confined space model, respectively. The flame propagation patterns of the two models were compared, and the flammability and explosion disaster law of the two models under different working conditions was analyzed. The results show that the combustion and explosion flame forms of the two models are significantly different. For fully confined space, the increase of aspect ratio will promote flame propagation and increase the fluctuation of explosion pressure value. The methane concentration slightly higher than the chemical equivalent ratio produces the maximum explosion pressure, and the pressure of rich combustion explosion is higher than that of lean combustion explosion. For semi-confined space, the increase of gas cloud volume increases the flame propagation distance and the flame velocity at the open end. The addition of obstacles initially enhances and then diminishes the intensity of the explosion flame, leading to a broader range of maximum explosion pressures and velocities. The analysis results of this study offer valuable insights for preventing and controling urban gas explosion risks in narrow and long confined spaces.
孟伟 , 何卫 , 李璐伶 , 等 . 城镇燃气行业发展现状与关键前沿技术 [J]. 油气储运 , 2022 , 41 ( 6 ): 673 ‑ 681 .
Meng W , He W , Li L L , et al . Development status and key frontier technology of urban gas industry [J]. Oil & Gas Storage and Transportation , 2022 , 41 ( 6 ): 673 ‑ 681 . (in Chinese)
齐圣 , 杜扬 , 梁建军 , 等 . 受限空间油气爆燃火焰形态 [J]. 爆炸与冲击 , 2016 , 36 ( 6 ): 832 - 838 .
Qi S , Du Y , Liang J J , et al . Flame patterns of gasoline-air mixture deflagration in a confined space [J]. Explosion and Shock Waves , 2016 , 36 ( 6 ): 832 - 838 . (in Chinese)
李静野 , 蒋新生 , 李进 , 等 . 长径比对管道油气爆炸特性与火焰传播规律影响研究 [J]. 中国安全生产科学技术 , 2020 , 16 ( 8 ): 88 - 94 .
Li J Y , Jiang X S , Li J , et al . Study on influence of length-diameter ratio on explosion characteristics and flame propagation laws of gasoline-air mixture in pipeline [J]. Journal of safety science and technology , 2020 , 16 ( 8 ): 88 - 94 . (in Chinese)
Zhou N , Wang T , Li X , et al . Experimental study on hydrogen-air premixed gas explosion in confined space [J]. Energy Sources Part A Recovery Utilization and Environmental Effects , 2020 : 1 - 12 .
李阳超 , 杜扬 , 王世茂 , 等 . 半受限空间油气无约束泄爆外场特性研究 [J]. 中国安全科学学报 , 2017 , 27 ( 8 ): 50 - 55 .
Li C Y , Du Y , Wang S M , et al . Study on external characteristics of gasoline-air mixture's free venting explosion in semi-confined space [J]. China Safety Science Journal , 2017 , 27 ( 8 ): 50 - 55 . (in Chinese)
庞磊 , 胡倩然 , 马菲菲 , 等 . 泄爆面特征参数对天然气爆炸超压峰值的影响规律 [J]. 中国安全生产科学技术 , 2020 , 16 ( 4 ): 126 - 131 .
Pang L , Hu Q L , Ma F F , et al . Effect of vent characteristic parameters on overpressure peaks of natural gas explosion [J]. Journal of Safety Science and Technology , 2020 , 16 ( 4 ): 126 - 131 . (in Chinese)
Pang L , Wang T , Zhang Q , et al . Nonlinear distribution characteristics of flame regions from methane–air explosions in coal tunnels [J]. Process Safety and Environmental Protection , 2014 , 92 ( 3 ): 193 - 198
Zhang Q , Pang L , Zhang S X . Effect of scale on flame speeds of methane‑air [J]. Journal of Loss Prevention in the Process Industries , 2011 , 24 ( 5 ): 705 - 712 .
刘中宪 , 王治坤 , 张欢欢 , 等 . 燃气爆炸作用下地下综合管廊动力响应模拟 [J]. 防灾减灾工程学报 , 2018 , 38 ( 4 ): 624 - 632 .
Liu Z X , Wang Z K , Zhang H H , et al . Numerical simulation of blast-resistant performance of utility tunnel under gas explosion [J]. Journal of Disaster Prevention and Mitigation Engineering , 2018 , 38 ( 4 ): 624 - 632 . (in Chinese)
史明方 , 刘振宇 , 田志昌 , 等 . 火灾下爆炸冲击波在钢结构中的传播规律及破坏机理 [J]. 防灾减灾工程学报 , 2022 , 42 ( 2 ): 283 - 293 .
Shi M F , Liu Z Y , Tian Z C , et al . Propagation law of explosion shock wave in steel structure [J]. Journal of Disaster Prevention and Mitigation Engineering , 2022 , 42 ( 2 ): 283 - 293 . (in Chinese)
罗振敏 , 张群 , 王华 , 等 . 基于FLACS的受限空间瓦斯爆炸数值模拟 [J]. 煤炭学报 , 2013 , 38 ( 8 ): 1381 - 1387 .
Luo Z M , Zhang Q , Yu H , et al . Numerical simulation of gas explosion in confined space with FLACS [J]. Journal of China Coal Society , 2013 , 38 ( 8 ): 1381 - 1387 . (in Chinese)
杨明磊 , 张振武 , 周骥飞 , 等 . 地下暗渠内气体爆炸影响范围的仿真研究 [J]. 安全与环境学报 , 2021 , 21 ( 6 ): 2500 - 2504 .
Yang M L , Zhang Z W , Zhou Y F , et al . Simulation on influence area of gas explosion in an underground culvert [J]. Journal of Safety and Environment , 2021 , 21 ( 6 ): 2500 - 2504 . (in Chinese)
Aleš T , Mynarz M , Milada K . Study of quantification and distribution of explosive mixture in a confined space as a result of natural gas leak [J]. The European Physical Journal Conferences , 2014 , 67 : 02119 .
Sung K H , Bang J W , Li L , et al . Effect of crack size on gas leakage characteristics in a confined space [J]. Journal of Mechanical Science and Technology , 2016 , 30 ( 7 ): 3411 - 3419 .
Li Z , Chen L , Yan H , et al . Gas explosions of methane-air mixtures in a large-scale tube [J]. Fuel , 2021 , 285 : 119239 .
李佳航 , 杨国梁 , 多英全 , 等 . 基于FLACS的海上钻探平台天然气井喷扩散模拟分析 [J]. 中国安全生产科学技术 , 2021 , 17 ( 增1 ): 121 - 127 .
Li J H , Yang G L , Duo Y Q , et al . Simulation analysis of natural gas blowout diffusion on offshore drilling platform based on FLACS [J]. Journal of Safety Science and Technology , 2021 , 17 ( Sup1 ): 121 - 127 . (in Chinese)
Wang D , Qian X , Ji T , et al . Flammability limit and explosion energy of methane in enclosed pipeline under multi-phase conditions [J]. Energy , 2021 , 217 : 119355 .
朱渊 , 杨强 , 左腾腾 , 等 . 基于FLACS的清管作业接收筒燃爆事故后果模拟及分析 [J]. 安全与环境学报 , 2018 , 18 ( 5 ): 1762 - 1767 .
Zhu Y , Yang Q , Zuo T T , et al . Simulation and analysis of the fire and explosion accident consequence of receiving tubes in pigging operation based on FLACS [J]. Journal of Safety and Environment , 2018 , 18 ( 5 ): 1762 - 1767 . (in Chinese)
Jiang B , Lin B , Zhu C , et al . Premixed methane-air deflagrations in a completely adiabatic pipe and the effect of the condition of the pipe wall [J]. Journal of Loss Prevention in the Process Industries , 2013 , 26 ( 4 ): 782 - 791 .
蒋新生 , 谢威 , 赵亚东 , 等 . 不同长径比的狭长管道油气爆炸实验 [J]. 油气储运 , 2020 , 39 ( 8 ): 879 - 884 .
Jiang X S , Xie W , Zhao Y D , et al . Experiment on oil and gas explosion of slender pipelines with different length-to-diameter ratios [J]. Oil & Gas Storage and Transportation , 2020 , 39 ( 8 ): 879 - 884 . (in Chinese)
Ma Q , Zhang Q , Li D , et al . Effects of premixed methane concentration on distribution of flame region and hazard effects in a tube and a tunnel gas explosion [J]. Journal of Loss Prevention in the Process Industries , 2015 , 34 : 30 - 38 .
陈先锋 , 张银 , 许小江 , 等 . 不同当量比条件下矿井瓦斯爆炸过程的数值模拟 [J]. 采矿与安全工程学报 , 2012 , 29 ( 3 ): 429 - 433 .
Chen X S , Zhang Y , Xu X J , et al . Numerical simulation on mine gas explosion in different gas content [J]. Journal of Mining & Safety Engineering , 2012 , 29 ( 3 ): 429 ‑ 433 . (in Chinese)
尉存娟 , 谭迎新 , 袁宏甦 . 水平管道内障碍物数量对瓦斯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 obstacle quantity on gas explosion process in horizontal pipe device [J]. China Safety Science Journal , 2012 , 22 ( 6 ): 60 - 64, (in Chinese)
刘梦杰 , 徐景德 , 张延炜 , 等 . 受限空间内瓦斯爆炸障碍物附近流场结构演化实验研究 [J]. 爆破 , 2021 , 38 ( 2 ): 160 - 166 .
Liu M J , Xu J D , Zhang Y W , et al . Experimental study on evolution of flow field near gas explosion barriers in confined space [J]. Blasting , 2021 , 38 ( 2 ): 160 - 166 . (in Chinese)
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