摘要
通过实验研究初始温度和压力对城镇燃气的爆炸特性的影响,测出初始温度为20～80 ℃、压力为0.1～0.2 MPa条件下燃气的爆炸极限.氮气作为置换气体时燃气的临界可燃浓度对应的体积分数为7.4%～9.0%,对N2抑爆机理进行了研究.
By experimentally studying the influence of initial temperature and pressure on explosion characteristics of city gas, the explosion limits of city gas under conditions of initial temperature 20 - 80 ℃ and initial pressure 0.1 - 0.2 MPa are measured. The corresponding volume fraction of critical flammable concentration of city gas using nitrogen gas as conversion gas is 7.4% - 9.0% , and the explosion suppression mechanism of nitrogen gas is studied.
出处
《煤气与热力》
2005年第9期1-4,共4页
Gas & Heat
基金
国家自然科学基金资助项目(10202001)
关键词
城镇燃气
爆炸极限
氮气
city gas
explosion limits
nitrogen gas
