三旋流燃烧室燃烧特性试验  

Experiment of combustion characteristic of triple swirler combustor

作　　者：徐丽[1] 刘凯[2] XU Li;LIU Kai(School of Mechanical Engineering,Shenyang Ligong University,Shenyang 110034,China;Faculty of Aerospace Engineering,Shenyang Aerospace University,Shenyang 110136,China)

机构地区：[1]沈阳理工大学机械工程学院,沈阳110034 [2]沈阳航空航天大学航空航天工程学院(部),沈阳110136

出　　处：《航空动力学报》2018年第9期2067-2073,共7页Journal of Aerospace Power

基　　金：国家自然科学基金(51376133);航空科学基金(2015ZB54003)

摘　　要：针对舰船用燃气轮机低污染排放要求,试验研究了一种三旋流贫预混燃烧室燃烧性能。结果表明:三旋流燃烧室内、中旋流角决定了点火成功与否,而外旋流角仅对点火、熄火极限有影响。采用内、中、外旋流角依次增加10°,旋流数依次增加33.3%、25.0%的组合方式有较好的点火、熄火性能;贫油点火油气比最低为0.05236,高于非预混燃烧室的一般标准,熄火油气比最低为0.00478,低于一般要求;燃烧室出口温度分布系数为0.227 9,完全满足设计要求;NOx排放指数为2.62g/kg,低污染优势明显。CO排放指数较高,为35.4g/kg,导致燃烧效率略低,仅为0.984 7。According to the requirement of low pollution emission of marine gas turbine,the combustion performance of a triple swirler lean premixed combustor was experimentally studied.Results showed that：for the triple swirler chamber,the internal and middle swirl angles determined the success of ignition,and the outer swirl had an influence on the ignition limit.A combination of 10 degrees and 33.3%,25.0%swirl numbers increase of the inner,middle and outer swirl angles had better ignition and blowout performance.The minimum lean ignition fuel-air ratio was 0.05236,lean blow-out fuel-air ratio was 0.00478;the outlet temperature distribution coefficient was 0.227 9,fully meeting the design requirements;the content of NOx was lower than that of 2.62 g/kg.But the CO content was higher up to 35.4 g/kg,leading to slightly lower combustion efficiency,only 0.984 7.

关 键 词：三旋流 预混 燃烧室 燃烧特性 油气比 

分 类 号：V231.2[航空宇航科学与技术—航空宇航推进理论与工程]