微型回油式喷嘴设计及雾化试验研究  

Research on Micro-swirl Atomizer Design and Atomization Test

作　　者：蔡文哲[1] 刘明华 

机构地区：[1]北京动力机械研究所,北京100074

出　　处：《战术导弹技术》2017年第6期57-61,共5页Tactical Missile Technology

摘　　要：根据某小型涡轮发动机需求,采用理论计算与经验相结合的设计方法设计了一种微型回油式喷嘴。通过理论分析和经验,确定了微型回油式喷嘴喷油孔孔径、回油孔孔径、旋流槽等关键几何部位尺寸。为验证设计方法的适用性以及喷嘴性能,在设计和加工该种回油式喷嘴基础上,开展了基于PDA的喷嘴雾化性能试验。试验结果表明,喷嘴特征雾化粒径在15~65μm之间,雾化均匀程度良好。Aiming at the requirement of small turbine engine,the micro-swirl atomizer with central return oil is designed by combining theory calculation and practical experience. By combining theory analysis and empirical formula,the geometrical parameters of the micro-swirl atomizer are obtained,including the outlet diameter of atomizer,the diameter of return oil hole,the size of swirl slots. In order to verify the design-process and atomizing performance,the atomization test is carried out based on the PDA system.The test results show that the D_（32） and D_（10） of this atomizer are between 15 ~ 65 μm,and the atomization uniformity is good.

关 键 词：涡轮发动机 微型喷嘴 索太尔平均直径 

分 类 号：TK402[动力工程及工程热物理—动力机械及工程]