金属纤维表面燃烧器掺氢燃烧特性实验研究  

Experimental Study of Characteristics of Hydrogen-enriched Natural Gas Combustion in Metal Fiber Surface Burner

作　　者：王天天 王志宁 张杨鑫 张扬[1] 张海[1] 庞尔总 WANG Tiantian;WANG Zhining;ZHANG Yangxin;ZHANG Yang;ZHANG Hai;PANG Erzong(Key Laboratory for Thermal Science and Power Engineering of Ministry of Education(Department of Energy and Power Engineering,Tsinghua University),Haidian District,Beijing 100084,China;Shanxi Research Institute for Clean Energy,Tsinghua University,Taiyuan 030032,Shanxi Province,China;Linyi Ouke Energy Saving Technology Co.,Ltd.,Linyi 276000,Shandong Province,China)

机构地区：[1]热科学与动力工程教育部重点实验室(清华大学能源与动力工程系),北京市海淀区100084 [2]清华大学山西清洁能源研究院,山西省太原市030032 [3]临沂市欧科节能技术有限公司,山东省临沂市276000

出　　处：《中国电机工程学报》2025年第2期424-432,I0001,共10页PROCEEDINGS OF THE CHINESE SOCIETY FOR ELECTRICAL ENGINEERING

基　　金：国家重点研发计划项目(2021YFF0600604)。

摘　　要：双碳目标下,掺氢天然气作为一种低碳燃料,其在已有燃气设备上的适应性成为关注重点。该文在一台配有金属纤维燃烧器的350 kW燃气实验炉上进行掺氢燃烧实验,重点关注掺氢比(0%~30%)和负荷(25%~100%)变化对燃烧器运行性能和污染物排放的影响。结果表明,保证负荷和风机转速不变时,掺氢后炉膛燃烧的过量空气系数增加,NO_(x)、CO和CO_(2)同时降低;随着负荷的增加,金属纤维燃烧器更趋向于蓝焰模式,NO_(x)排放降低,CO排放增加。实验过程中,基本上所有工况(经过优化后)均可以满足NO_(x)和CO排放都低于30 mg/m^(3)。该文可为燃气锅炉掺氢燃烧工程实践提供一定的数据基础。Facing the“carbon peak and carbon neutrality”target,the adaptability of hydrogen-enriched natural gas,as a low-carbon fuel,to existing natural gas-fired equipment has become a focus of attention.In this study,hydrogen-enriched natural gas combustion experiments are conducted on a 350 kW gaseous fuel-fired pilot furnace equipped with a metal fiber surface burner.The main attention is paid to the effects of changes in the hydrogen blending ratio(0%~30%)and the boiler heating load(25%~100%)on burner performances and pollutant emissions.The results show that when the heating load and blower speed remain unchanged,the excess air ratio of the furnace combustion increases,and NO_(x),CO,and CO_(2) decrease accordingly,as the hydrogen blending ratio increases.As the heating load increases,the metal fiber surface burner tends to be more in the blue flame mode.Besides,the NO_(x) emission decreases while the CO emission increases.Almost all the test cases after optimization in the experiments could satisfy the requirements that both NO_(x) and CO emissions are below 30 mg/m^(3).

关 键 词：掺氢天然气 金属纤维表面燃烧器 污染物排放 碳减排 

分 类 号：TK16[动力工程及工程热物理—热能工程]