两种燃烧方式下变负荷对煤粉锅炉NO_x排放的影响  

Influence of Variable Load on NO_x Emission of Pulverized-coal Boiler under Two Combustion Modes

作　　者：张定海 冉燊铭 朱骅 韦耿 ZHANG Ding-hai;RAN Shen-ming;ZHU Hua

机构地区：[1]清洁燃烧与烟气净化四川省重点实验室 [2]东方电气集团东方锅炉股份有限公司

出　　处：《电站系统工程》2018年第3期1-4,共4页Power System Engineering

基　　金："十二五"国家科技支撑计划项目(2015BAA03B01)资助

摘　　要：针对切圆燃烧锅炉与对冲燃烧锅炉在不同负荷下的炉膛出口NO_x排放浓度的变化规律进行了研究,从NO_x生成与还原的机理出发,结合基于Fluent的数值计算解释了切圆燃烧锅炉低负荷NO_x升高而对冲燃烧锅炉低负荷NO_x不升高的原因。The effect of variable load on the NOx emission of different types of pulverized coal fired boilers： tangentialfiring boiler and opposed-firing boiler is investigated. With NOx mechanism of generation and reduction, with the CFD simulations, the reason behind higher NOx emission under lower load for tangential-firing boiler while lower NOx emission under lower load for opposed-firing boiler is analyzed.

关 键 词：四角切圆锅炉 对冲燃烧锅炉 变负荷 NOx 

分 类 号：X701.3[环境科学与工程—环境工程]