新型进料喷嘴雾化性能数值模拟及冷态实验研究  

Numerical Simulation and Cold Form Experiment Research of Atomization Performance of the New Type Feeding Nozzle

作　　者：岳春国[1] 李进贤[1] 侯晓[1] 冯喜平[1] 

机构地区：[1]西北工业大学燃烧流动和热结构国家级重点实验室,西安710072

出　　处：《世界科技研究与发展》2008年第5期605-608,共4页World Sci-Tech R&D

摘　　要：为了改善喷嘴的雾化效果和研究其喷雾过程,对干气雾化进料喷嘴的雾化粒度及均匀性进行了数值仿真和冷态实验研究。利用相位多普勒粒子分析仪,在不同流量下,对喷雾场内不同点的算术平均直径、面积平均直径、体积平均直径、索太尔平均直径以及粒子速度在空间内的分布进行了测量。采用计算流体力学(CFD)方法对冷态喷雾流场进行了数值仿真。通过实验研究和理论计算两种手段,初步探讨了喷嘴的雾化性能的优劣。经过对比分析,实验研究实验结果与数值模拟结果基本一致。结果表明,实验研究和数值仿真的结果均可为喷嘴的设计和优化提供一定依据和参考。同时,本文简述了进料喷嘴的结构和采用的关键技术、冷态试验装置、测量设备和应用前景。For better atomization effect and helping understanding of the atomization process, the experimental research and numerical simulation research on atomization characteristic of a high efficiency feeding atomization nozzle which is used for eatalyse and cracking of heavy oil are done. The dimensional distributions in spray sector of arithmetical average diameter, area average diameter, volume average diameter, SMD and grain velocity in different flux with the support of Phase Doppler Particle Analyzer （PDPA） are attained. Numerical simulation on cold form spray field using CFD method is carried through. The good or bad performance of the nozzle can be explored elementarily by experimental research and theoretic numeration. The contrasts of cold form experiment results and numerical results are carried out ,which show consistent basically. The references for design of atomization nozzle can be provided by experimental research and numerical results. Simuhaneity, the structure and key technology of new type feeding atomization nozzle,the cold form tester, survey equipment and the application foreground to industry are introduced.

关 键 词：进料喷嘴 雾化 粒径 数值仿真 相位多普勒粒子分析仪 

分 类 号：TE966[石油与天然气工程—石油机械设备]