煤矿安全2024，Vol.55Issue(8)：72-79,8.DOI:10.13347/j.cnki.mkaq.20231270
基于3DPIV技术的煤矿模拟巷道烟气流动实验研究
Experimental study of simulated flue gas flow in coal mine roaduay based on 3DPIV technology
摘要
Abstract
In order to study the characteristics of smoke flow when fire occurs in underground coal mines,and then accurately ana-lyze the state of smoke flow,the flow state of the flue gas in the natural state at 10 s is simulated in this paper to determine the ap-proximate stage of the ignition and smoke production,which is used as a reference for the subsequent experiments;the 3-dimension-al particle image velocimetry(3DPIV)was utilized to photograph the open,closed and sealed conditions of the tunnel,and the start/stop control of the fan with a fixed wind speed of 1 m/s was combined to study the motion of the smoke flow under different conditions.The results show that:the open smoke flow of the roadway is relatively simple,and once the roadway is closed,the smoke cannot be diffused,and complex flow changes will occur in high concentration of smoke,such as laminar flow,excessive flow,turbulence,countercurrent and bifurcation of the smoke flow,etc.When the roadway is closed and sealed,the smoke flow"gushing"will occur.At this moment,the flow state of the smoke flow is complex and changeable,but the smoke flow will be stable after a certain period of time.关键词
矿井火灾/烟气流动/模拟巷道/3DPIV/密闭启封Key words
mine fire/flue gas flow/simulation roadway/3DPIV/air stopping unsealed分类
矿业与冶金引用本文复制引用
邹永洺,王银辉,田富超,赵岳然..基于3DPIV技术的煤矿模拟巷道烟气流动实验研究[J].煤矿安全,2024,55(8):72-79,8.基金项目
国家自然科学基金资助项目(52174229,52174230) （52174229,52174230）
国家重点研发计划资助项目(2023YFB3211000) （2023YFB3211000）
辽宁省自然科学基金资助项目(2022-KF-23-03,2023-MS-355) （2022-KF-23-03,2023-MS-355）
