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利用数值模拟软件分析了二次空气对高温低氧空气燃烧污染物排放的影响。应用分级燃烧技术的燃烧器不仅使燃烧室内具有较高的温度水平,温度场均匀,燃烧效率高,而且NOx的生成量也较低,可以达到节约燃料和降低污染物的综合效果。计算结果分析表明:分级燃烧的二次空气配比对燃烧室内的NOx排放有较大影响。当一次空气占40%左右时NOx排放最少。
The effect of secondary air on the emissions of high temperature and low oxygen air combustion pollutants was analyzed by numerical simulation software. Combustion using staged combustion technology not only makes the combustion chamber have a higher temperature level, uniform temperature field, high combustion efficiency, and NOx generation is also lower, you can achieve the combined effect of fuel savings and reduce pollutants. The calculation results show that the staged combustion of secondary air ratio has a greater impact on the NOx emissions in the combustion chamber. When the air accounted for about 40% when the NOx emissions at least.