烃类蒸汽转化炉燃烧器的研究与应用

Research and application of hydrocarbon steam reformer's burners

针对KBR烃类蒸汽转化炉炉顶燃烧器工况恶化的现状,数值模拟计算了燃料组分、混合方式对燃烧特性的影响,对燃烧器形式及结构参数等关键因素进行了研究。在原有"燃料分段"加"烟气再循环"技术的基础上,提出了"空气分段"加"烟气再循环"的国产化改造方案。将原有"圆筒型燃料器"改造为新型超低NO_x排放设计的"扁平式燃烧器"。通过改造,燃烧状况得到明显改善,达到了节能减排的目的。

According to the present situation of condition deterioration in the KBR hydrocarbon steam reformer＇s arch burners, the influences of fuel composition and mixed mode on the combustion characteristics were calculated by numerical simulation, and the key factors such as tile form and structure parameters of the burner were studied. On the basis of the original ＂Staged-Fuel Burners＂ and ＂Flue Gas Recirculation＂ technology, a localized modification plan of ＂Staged-Air Burners＂ and ＂Flue Gas Recirculation＂ was proposed. The original ＂Cylinder Type Burner＂ was transformed into a new type of ＂Flat Flame Burner for the Design of Ultra Low NOx Emissions＂. By means of modification, the combustion state could be improved obviously, achieving the purpose of energy-saving and emission reduction.