天然气金属纤维燃烧器燃烧特性实验研究  

Experimental Study on Combustion Characteristics of Natural Gas Metal Fiber Burner

作　　者：姚雪 彭世尼 张朋远 YAO Xue;PENG Shini;ZHANG Pengyuan

机构地区：[1]重庆大学土木工程学院,重庆400045

出　　处：《煤气与热力》2021年第11期7-10,共4页Gas & Heat

摘　　要：通过构建金属纤维燃烧器实验平台,探究金属纤维燃烧器在完全预混燃烧条件下的热负荷调节范围及其随过剩空气系数的变化,以及火焰温度、污染物排放等特性与过剩空气系数、热负荷之间的关系。结果表明:基于热负荷调节范围、火焰温度和NO_(x)、CO排放量,在本研究的工况范围内,最佳操作过剩空气系数为1.05。在最佳操作过剩空气系数(1.05)时,面积热强度下限为0.08 W/mm^(2),面积热强度上限可达1.01 W/mm^(2),热负荷调节比为13.4。过剩空气系数由1.00增大到1.33时,热负荷调节范围逐渐缩小,热负荷调节比由14.6缩小为9.8。Through the construction of the experimental platform of metal fiber burner,the heat load adjustment range and its variation with excess air coefficient of metal fiber burner under the condition of full premixed combustion as well as the relationship between flame temperature,pollutant emission and excess air coefficient and heat load are explored.The results show that based on the heat load regulation range,flame temperature and NO_(x)and CO emissions,the optimal operating excess air coefficient is 1.05 within the working conditions of this study.At the optimum operating excess air coefficient(1.05),the lower limit of area thermal intensity is 0.08 W/mm^(2),the upper limit of area thermal intensity can reach 1.01 W/mm^(2),and the thermal load regulation ratio is 13.4.When the excess air coefficient increases from 1.00 to 1.33,the heat load adjustment range is gradually reduced,and the thermal load regulation ratio is reduced from 14.6 to 9.8.

关 键 词：金属纤维燃烧器 过剩空气系数 热负荷调节范围 火焰温度 污染物排放 

分 类 号：TK17[动力工程及工程热物理—热能工程]