FGR技术对燃气锅炉出力、热效率及生成NO x的影响分析  

Analysis of the influence of FGR technology on the output,thermal efficiency and NO x generation of gas boilers

作　　者：艾斯帕尔·艾尔肯江 王勇勇 叶尔太·热旦 别尔兰·贾纳依汗 Aisipaer Aierkenjiang;Wang Yongyong;Yeertai Redan;Bieerlan Jianayihan(Xinjiang Uygur Autonomous Region Inspection Institute of Special Equipment,Xinjiang Urumqi,830011,China;Shandong Hualu-Hengsheng Chemical Co.,Ltd.,Shandong Dezhou,253024,China)

机构地区：[1]新疆维吾尔自治区特种设备检验研究院,新疆乌鲁木齐830011 [2]山东华鲁恒升化工股份有限公司,山东德州253024

出　　处：《机械设计与制造工程》2024年第5期125-129,共5页Machine Design and Manufacturing Engineering

基　　金：新疆维吾尔自治区质监局科技计划项目(2018-06)。

摘　　要：介绍了燃气工业锅炉氮氧化物(NO x)的生成机理,分析了燃气锅炉排放NO x的主要来源。介绍了烟气再循环技术的工作原理,通过开展烟气再循环技术对燃气热水工业锅炉燃烧过程调控作用实验,研究了烟气再循环技术对锅炉出力、热效率及生成NO x的影响规律。实验结果表明,随着烟气再循环开启火焰温度降低,使得锅炉出力、热效率降低,同时热力型NO x的生成被抑制,造成NO x生成总量下降。The generation mechanism of nitrogen oxides in gas-fired industrial boilers is discussed along with an analysis of the primary sources of these emissions.The working principle of flue gas recirculation technology is explained.Experiments on the impact of flue gas recirculation in the combustion process of gas-fired hot water industrial boilers demonstrates the impact of this technology on boiler output,thermal efficiency,and NO x generation.The results indicate that flue gas recirculation leads to a decrease in flame temperature,which results in reduced boiler output and thermal efficiency.Additionally,the generation of thermal NO x is suppressed,leading to a decrease in the total amount of NO x produced.

关 键 词：锅炉 低氮改造 烟气再循环 出力 热效率 NO x 

分 类 号：TK229.8[动力工程及工程热物理—动力机械及工程]