摘要
利用爆炸激波管技术研究了部分惰性物对爆炸特性的影响。用多通道辐射高温计测量了氮气对汽油爆轰温度的影响。研究表明 ,增加氮气含量可以较明显地降低汽油爆轰温度。采用化学当量配比氢氧混合物爆轰产生水蒸气的方法研究了水蒸气对汽油爆轰特性的影响。研究表明 ,水蒸气能明显降低爆炸压力 ,水蒸气压力增加到 0 .1 MPa时可导致爆炸熄灭 ;硝基甲烷和氧气混合物中充入氮气后爆炸压力明显下降 ,采用光多通道分析系统 (OMA谱仪 )和多台单色谱仪的光谱测量结果表明 ,反应中间产物的 CH3 O、CH辐射强度迅速衰减 ,反应衰竭。
The article is aimed to study the impact of some inert materials on the explosion behavior by using the explosion shock tube. As is known, it is necessary to avoid and decrease a loss of the explosion caused by the inhibition on inert materials on the explosion. Since the influence of nitrogen on gasoline detonation temperature can be measured by means of the so-called multi-channel emission pyrometer technique, nitrogen content increase can obviously contribute to the lowering of the detonation temperature of gasoline. For this reason, the author measured the influence of vapor on the gasoline detonation behavior and found that the vapor can obviously decrease the explosion pressure. When the vapor pressure increases to 0.1 MPa, it is likely to lead to failure of the explosion due to the generating vapor for stoichiometry hydrogen-oxygen mixture detonation. The explosion pressure can also be decreased when nitrogen is added into a mixture of nitromethane with oxygen. The results of spectra measurement gained by using the multi-channels analysis system (OMA spectrograph) and multi-monochrometers indicate that the fast decreasing of CH 3O, CH radical radiation intensity may leads to the reaction failure.
出处
《安全与环境学报》
CAS
CSCD
2003年第4期11-13,共3页
Journal of Safety and Environment
