中国电机工程学报2025，Vol.45Issue(24)：9668-9679,中插16,13.DOI:10.13334/j.0258-8013.pcsee.241616
旋流器主燃级叶片角度对燃烧室性能的影响
Impact of Swirler Main Stage Blade Angles on Combustor Performance
摘要
Abstract
To refine the design criteria of coaxial-staged swirlers,this study investigates the effects of the blade angles of the first and second main stages on flow field characteristics and combustion performance through numerical simulations,focusing on a low-emission tower-type coaxial-staged combustor fueled with natural gas.The coupling relationship between the two main stages on combustion performance is revealed.The results show that the angle of the second main stage blades has a significant impact on the flow field structure and combustion performance.When the angle of the second main stage blades is 30°,an effective recirculation zone fails to be formed in the non-reactive flow field.Within the range of blade angles considered in the study,increasing the angle of either the first main stage or second main stage blades can promote the mixing of fuel and air and shorten the flame length,thereby improving combustion efficiency and reducing pollutant formation.The angle of the second main stage blades is the main influencing factor.Considering various combustion performance parameters comprehensively,when both the first and second main stage blade angles are set to 55°,the combustor exhibits optimal overall performance.The study shows that a proper matching of the first and second main stage blade angles can significantly improve the flow and combustion performance of the coaxial-staged combustor.关键词
同轴分级燃烧室/低排放/燃烧性能/叶片角度Key words
coaxial-staged combustor/low-emission/combustion performance/blade angle分类
能源科技引用本文复制引用
李圣男,刘潇,刘恩惠,吕光普,郑洪涛..旋流器主燃级叶片角度对燃烧室性能的影响[J].中国电机工程学报,2025,45(24):9668-9679,中插16,13.基金项目
国家自然科学基金项目(52206137).Project Supported by National Natural Science Foundation of China(52206137). （52206137）
