摘要
在对各种气动喷嘴及其雾化机理分析的基础上提出了一种新型的雾化喷嘴———“旋转型气 -液雾化喷嘴” ,其气液比在热态实验时为 4 %～ 6 % (用压缩空气雾化 ) ,并对其流量系数进行了系统的研究。主要考虑了喷嘴的结构参数、气液比 (ALR)和液体粘度等因素对流量系数的影响。通过实验测量与拟合 ,最后得到了喷嘴的流量系数的表达式 ,可以用来指导喷嘴的设计。
The atomization mechanism of various types of pneumatic spray nozzles was analyzed. On this basis proposed is an innovative atomization spray nozzle, the so-called swirl-type gas-liquid atomization spray nozzle. Its air-to-liquid mass flow rate ratio (ALR) during hot-state tests is 4%-6% (atomized by compressed air). A systematic study was conducted of its flow factor with main attention being focused on the influence of nozzle structural parameters, ALR and liquid viscosity on the flow factor. Through experimental measurements and fitting a mathematical expression of the nozzle flow factor is obtained, which can serve as a guide for the spray nozzle design.
出处
《热能动力工程》
EI
CAS
CSCD
北大核心
2004年第4期376-379,共4页
Journal of Engineering for Thermal Energy and Power
关键词
喷嘴
流量系数
气液比
spray nozzle, flow factor, air-to-liquid mass flow rate ratio.
