摘要
为研究瓦斯浓度对瓦斯爆炸致灾性气体的影响,利用定容反应器模型,模拟封闭空间内不同瓦斯浓度条件下的瓦斯爆炸反应。试验结果表明:随着初始瓦斯浓度的增高,瓦斯爆炸所产生的致灾性气体CO_2,NO和NO_2浓度逐渐降低,而CO浓度逐渐增高;当初始瓦斯体积分数为9.5%时,对致灾性气体(CO,CO_2,NO和NO_2)生成和消减起促进作用的关键基元反应步(TKERS)相同。
To study effects of gas（ methane） concentration on disastrous gases produced by gas explosion in confined space,gas explosion was simulated using a constant volume reactor model. The research results show that an increase in initial gas concentration causes an increase in CO concentration produced by gas explosion and a decrease in CO2,NO and NO2 concentration produced by gas explosion continuously during gas explosion,and that under the initial gas concentration of 9. 5%,the key elementary reaction steps contributing production of CO,CO2,NO and NO2 are identical to those contributing consumption of CO,CO2,NO and NO2 is same.
出处
《中国安全科学学报》
CAS
CSCD
北大核心
2016年第1期69-75,共7页
China Safety Science Journal
基金
国家自然科学基金资助(51304212)
教育部高等学校博士学科点专项科研基金资助(20120023120005)
北京高等学校青年英才计划项目(YETP0930)
中央高校基本科研业务费专项资金项目(2009QZ09)
关键词
瓦斯爆炸
瓦斯浓度
模拟
致灾性气体
基元反应步(TKER)
gas explosion
gas concentration
simulation
disastrous gas
the key elementary reaction step（TKERS）
