高压物理学报2017，Vol.31Issue(3)：301-308,8.DOI:10.11858/gywlxb.2017.03.012
氮气和水蒸气对瓦斯爆炸基元反应的影响及抑爆机理分析
Effect of Nitrogen and Water Vapor on Methane-Air Mixture Explosion Elementary Reaction and Suppression Mechanism
摘要
Abstract
To reveal the suppression chemical mechanism of nitrogen and water and to prevent the methane-air explosion more effectively,we designed different schemes with different concentrations of nitrogen and water vapor,and simulated the pressure,temperature and time to peak pressure of the methane-air explosion using a chemical kinetic software.We compared the reaction rates of main elementary reactions of different schemes,and analyzed the suppression chemical kinetics mechanism.The results show that both the nitrogen and the water vapor can effectively suppress the elementary reaction rate of the explosion,and the water vapor is more efficient than the nitrogen.Meanwhile,the concentration of free radical OH · will increase with water vapor as the inert gas.This research results can provide reference for the study of the explosion suppression of methane-air mixture.关键词
瓦斯爆炸/模拟/抑爆/反应速率/基元反应Key words
methane-air explosion/simulation/explosion suppression/reaction rate/elementary reaction分类
数理科学引用本文复制引用
杨春丽,刘艳,胡玢,李祥春,董艳..氮气和水蒸气对瓦斯爆炸基元反应的影响及抑爆机理分析[J].高压物理学报,2017,31(3):301-308,8.基金项目
国家自然科学基金(51304212) （51304212）
“十二五”国家科技支撑计划课题(2015BAK40B03) （2015BAK40B03）
