摘要
研究了一种多级气动喷嘴对水煤浆燃料的喷雾特性的影响 .采用实验方法研究了水煤浆性质、喷嘴操作工况和喷嘴几何结构对射流雾化细度的影响 .对喷嘴出口附近的两相流场进行了数值计算 ,并针对相关结果进行了分析 .研究结果证明 ,该喷嘴对水煤浆燃料有很好的雾化性能 。
Spray characteristics of a multi-stage airblast nozzle designed for coal-water slurry(CWS)were studied in this paper. Factors affecting the atomizing performance were studied experimentally, including properties of CWS in terms of apparent viscosity, operating conditions and geometric structure of the nozzle. The two-phase flow field in the vicinity of the nozzle orifice was studied numerically. The result demonstrated high performance of the multi-stage nozzle, and provided quantitative reference for further optimization of the nozzle.
出处
《燃烧科学与技术》
EI
CAS
CSCD
2003年第1期77-80,共4页
Journal of Combustion Science and Technology
关键词
水煤浆
流动特性
雾化
气动喷嘴
coal-water slurry
atomization
airblast nozzle
