【摘要】 针对汽油的燃烧特性,搭建了基于静电喷雾燃烧技术试验台,对燃烧室内沿轴向位置的气相温度和燃烧室内关键位置烟气组分的变化规律进行测试。实验用直径和高度分别是50 cm和80 cm的铁桶模拟燃烧室,在桶的一侧同一条直线上纵向均匀间隔10 cm打出若干个圆孔;采用桑塔纳3 000的喷油器使汽油雾化;用针尖电极和静电发生器使汽油带上静电。当喷油器喷射出来的汽油持续燃烧时让热电偶和废气分析仪的探头通过圆孔伸入到铁桶各个高度的中心部位,分别测试带上静电前后桶内沿轴向位置的气相温度和关键位置气体组分的变化规律。实验结果表明,静电喷雾燃烧技术明显提升汽油燃烧的热效率和改善烟气的排放,使用静电喷雾燃烧技术后,喷嘴附近温度升高幅度可以达到18%左右;HC排放下降幅度可以达到60%以上,CO排放下降幅度可以达到58%以上,CO2排放的增加幅度可以达到52%以上,NOX排放下降幅度可以达到45%以上。从而为节能减排提供了一条新的思路。更多还原

【Abstract】 In view of the combustion characteristics of gasoline,a test-bed was set up based on electrostatic spray combustion technology.The test was conducted on the gas temperature along the axial position in the combustion chamber and the variation of the combustion chamber flue gas composition of the key position.Experimental results show that the electrostatic spray combustion technology can significantly improve the thermal efficiency of gasoline combustion and improve flue gas emissions;the use of electrostatic spray combustion technology increases the temperature near the nozzle to about 18%;HC emissions decreases more than 60%,CO emissions decreases more than 58%,CO2 emissions decreases more than 52%,and NOX emissions decreases more than 45%,The experiment provides a new idea for energy saving and emissions reduction.更多还原