连续式换热高温低氧燃烧炉内烟气组分研究  

Study on Flue Gas Composition in High Temperature Low Oxygen Combustion Furnace with Continuous Heat Transfer

作　　者：王龙 吴晋湘[2] WANG Long;WU Jinxiang(Henan Angang Zezhong Metallurgical Design Co.,Ltd,A nyang 455004,China;School of Energy and Environmental Engineering,Hebei University of Technology,Tianjin 300401,China)

机构地区：[1]河南安钢泽众冶金设计有限责任公司,河南安阳455004 [2]河北工业大学能源与环境工程学院,天津300401

出　　处：《工业炉》2020年第5期16-19,31,共5页Industrial Furnace

基　　金：天津市应用基础及前沿技术研究计划资助项目(08JCZDJC22800)。

摘　　要：本文对连续式换热高温低氧燃烧系统进行了实验研究和数值模拟,并对比分析了空气预热温度对炉膛尾部烟气组分的影响。实验结果表明:空气预热温度越高,炉内的温度水平越高,燃烧越充分,炉膛尾部烟气中CO、CxHy、H2的含量先快速升高到最大值然后逐渐降低,NOx的排放量先增加后略有下降,再继续上升。由于实验条件的限制和数值模拟的简化,实验数据和模拟结果存在数值上的差异,但烟气组分的变化趋势是基本吻合的。The experimental research and numerical simulation of the high temperature low oxygen combustion system with continuous heat transfer were carried out,and the effect of the air preheating temperature on the flue gas components at the end of the furnace was compared and analyzed.Experimental results showed that the higher the air preheating temperature was,the higher the temperature level in the furnace was,and the more sufficient combustion was.As a result,the content of CO,CxHy and H2 in flue gas at the end of the furnace first increased rapidly to the maximum value and then gradually decreased.The emission of NOx first increased and then decreased slightly,and then continued to rise.Since the limit of the experimental conditions and the simplify of the numerical simulation,there are some numerical differences between experimental data and simulation results,but the variational trend of the flue gas components is basically consistent.

关 键 词：连续式换热 高温低氧燃烧 烟气组分 

分 类 号：TK175[动力工程及工程热物理—热能工程]