微小型甩油盘式燃烧室若干关键技术研究  

A Study on Key Technologies of Micro Combustor with a Slinger Injector

作　　者：陈晓丽[1] 蒋雪辉[1] 何悟[1] 蔡文哲[1] 戴四敏[1] 郑严[1] 赵学成[1] 

机构地区：[1]北京动力机械研究所,北京100074

出　　处：《推进技术》2016年第2期296-303,共8页Journal of Propulsion Technology

摘　　要：微小燃烧室设计技术是微型涡轮发动机核心技术之一。研制成功了一款微小型叶片式甩油盘燃烧室,对研制过程进行分析,突破的关键设计技术有:火焰筒容积应足够大,保证停留时间不低于5ms,容热强度在经验范围内;合理设计甩油盘,保证全工况雾化质量良好;构造多涡小涡的主燃区流场结构,控制射流强度和深度;合理分配流量,主燃区稍富油,其后采取小气量逐渐进气方式给气。The design and manufacture of micro combustors are important for the micro turbo engines. The study development of a micro annular combustor with a slinger injector with vanes has been performed. A thor-ough investigation was conducted on several key technologies of combustor design,including a fairly large flame tube, to ensure more than 5ms residence time, and proper volumetric heat density, good atomization perfor-mance in the whole operation range,a group of small vortexes in the primary combustion zone,with appropriate air injecting depth,reasonable flow distribution,fuel rich in the primary combustion zone,and multi-stage air injections after that.

关 键 词：微小燃烧室 燃烧室设计 甩油盘 试验 数值模拟 

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]