热力发电2025，Vol.54Issue(4)：24-32,9.DOI:10.19666/j.rlfd.202406159
掺氢燃气微混燃烧技术实验研究
Experimental study on micro-mixing combustion technology of hydrogen-doped gas
摘要
Abstract
To address the issues of flashback and high NOx emissions in hydrogen-enriched gas combustion,a swirl-stabilized burner was designed using mild premixed combustion technology,and a feasibility study was conducted for its application in industrial boilers.Using a combination of experimental and numerical simulation methods,the study explored the equivalence ratio adjustment range of the mild premixed burner and the influence of hydrogen blending ratio on flame shape and pollutant emission characteristics.The experimental results showed that the mild premixed burner can achieve a wide hydrogen blending heat ratio adjustment range of 0～100%.The addition of hydrogen promoted a more uniform flame distribution,and the flame height decreased with the increasing hydrogen blending ratio.Additionally,the NOx mass concentration experienced a rapid increase(for hydrogen blending ratios less than 30%)followed by fluctuations around 60 mg/m3.As the hydrogen blending ratio increased,the critical equivalence ratio for local flashback decreased,narrowing the stable combustion range between the blowout limit and the partial flashback limit.The widest equivalence ratio stable combustion range was achieved at a hydrogen blending ratio of 40%,which was 0.54～1.06.关键词
掺氢燃气/微混燃烧/火焰结构/NOx排放Key words
hydrogen mixed gas/micro-mixed combustion/flame structure/NOx emissions引用本文复制引用
张晓倩,卓建坤,唐勇,陈柏松,陈湘男,姚强..掺氢燃气微混燃烧技术实验研究[J].热力发电,2025,54(4):24-32,9.基金项目
航空发动机及燃气轮机基础科学中心项目(P2022-AB-Ⅱ-006-002) Project of Science Center for Gas Turbine(P2022-AB-Ⅱ-006-002) （P2022-AB-Ⅱ-006-002）
