旋流器旋向组合对中心分级燃烧室性能的影响  

Effects of Swirler Rotational Direction Combinations on Combustion Performance of Centrally-Staged Combustor

作　　者：刘威 王成军 于雷 郑顺 曾文 陈保东 LIU Wei;WANG Cheng-jun;YU Lei;ZHENG Shun;ZENG Wen;CHEN Bao-dong(College of Aero-Engine,Shenyang Aerospace University,Shenyang 110136,China)

机构地区：[1]沈阳航空航天大学航空发动机学院

出　　处：《推进技术》2019年第12期2788-2796,共9页Journal of Propulsion Technology

基　　金：国家自然科学基金(51476106)

摘　　要：针对四种不同旋向组合的旋流器,进行了常压下中心分级燃烧室在不同进气参数条件下的试验研究,获得了在试验条件下的燃烧规律。试验结果表明:值班级旋向对燃烧性能有明显的影响,主燃级旋向对燃烧有一定作用;当旋向组合为顺-逆-逆时,燃烧室贫油熄火性能比其他方案较好,贫油熄火时油气比为6.6×10^-3,同时,CO,UHC排放性能及燃烧效率较优,CO排放最低达到98mg/m^3,UHC排放最低达到650mg/m^3,效率最高达到97.1%;但旋向为顺-逆-顺时,其出口温度分布系数(OTDF)最低为0.21,出口温度特性较好。For four kinds of swirlers with different rotating directions combinations,the experimental study of the centrally-staged combustor under different inlet air parameters at atmospheric pressure was carried out,and the combustion rules under the experimental conditions was obtained.The test results show that:The rotational direction of pilot stage has obvious influence on combustion performance,and the rotational direction of primary stage has a certain effect on combustion.When the rotational direction combinations is clockwise-counterclockwise-counterclockwise,the lean blow out performance is better than others,the lean blow out fuel-air-ratio is6.6×10^-3;and the CO and UHC emission performance and combustion efficiency are better,the lowest CO emission is 98 mg/m^3,UHC is 650 mg/m^3,and the highest efficiency is 97.1%.However,when the rotational direction combinations is clockwise-counterclockwise-clockwise,its lowest out temperature distribution coefficient(OTDF)value is 0.21,and its outlet temperature characteristics are better.

关 键 词：燃烧室 旋流器 燃烧性能 旋向组合 值班级 主燃级 

分 类 号：V231.1[航空宇航科学与技术—航空宇航推进理论与工程]