发电技术2026，Vol.47Issue(4)：867-876,10.DOI:10.12096/j.2096-4528.pgt.260417
甲烷掺氢微混燃烧器功率放大设计分析
Design and Analysis of Power Amplification of Methane Hydrogen-Doped Micro-Mixed Burner
摘要
Abstract
[Objectives]Power amplification represents a necessary step in transitioning burners from laboratory experiments to engineering applications.Micro-mixed combustion is a highly promising approach for methane hydrogen-doped combustion.However,there is limited research on power amplification for this type of burner within current design and development frameworks.Therefore,research is conducted specifically on megawatt-scale burners.[Methods]Based on field experiments,the amplification characteristics of methane hydrogen-doped micro-mixed combustion in a megawatt-scale gas boiler are investigated using numerical simulation.Comparisons between experiment and simulation of a micro-diffusion burner show that increasing hydrogen doping ratio increases the overall combustion reaction rate,resulting in increased outlet temperature and NOx emissions.Based on the characteristics of hydrogen combustion,a power amplification design principle using constant nozzle flow velocity and constant furnace volumetric heat load is proposed.Additionally,two design schemes—fixed nozzle number and fixed nozzle diameter—are compared in terms of combustion thermal characteristics of micro-mixed hydrogen-doped fuel at different power levels.[Results]With the power amplification of the burner,the overall combustor temperature and NOx emissions decrease,and the rate of decrease gradually diminishes.Differences are observed in axial temperature,velocity distribution,and outlet NOx emissions between the two schemes.However,as the power increases,the difference between the two schemes gradually diminishes.Selecting appropriate burner nozzle and furnace scale-up design schemes can effectively reduce NOx emissions.[Conclusions]The findings can provide insights for the design of high-power micro-mixed hydrogen-doped combustion equipment.关键词
掺氢微混燃烧/掺氢比/功率放大/NOx排放/燃烧器设计/燃烧特性/排放特性Key words
Hydrogen-doped micro-mixed combustion/hydrogen doping ratio/power amplification/NOx emission/burner design/combustion characteristics/emission characteristics分类
能源科技引用本文复制引用
吴云峰,李鹏翔,卢彬,朱红胜,谢沙灿,王通,王家伟,汪涛,张永生..甲烷掺氢微混燃烧器功率放大设计分析[J].发电技术,2026,47(4):867-876,10.基金项目
国家重点研发计划项目(2022YFB4003905). Project Supported by National Key R&D Program of China(2022YFB4003905). （2022YFB4003905）
