摘要
为研究加热炉平焰旋流烧嘴下方燃烧速度场的主要机理,采用相似和模化理论建立了冷态实验模型(1∶1);采用粒子激光测速(PIV)技术对烧嘴下方的主要燃烧速度场进行了测量,得出在旋流强度为1.76、空气与煤气的流量比为13.68时的速度场;速度场主要由回流区和贴附射流区组成;同时探讨了两个区域径向速度和轴向速度的分布特性,得出了二维速度分布规律。为后续热态实验研究打下基础。
To study the dominant mechanism of combustion speed field under flat--flame burner infurnac eprocess, a cold model was established by similarity and modeling theory （1 ： 1） ; the leading combustion speed field under burner was measured by Particle Image Velocimetry （PIV） technique. Speed field is obtained at the state which whirl strength is 1.76 and air/coal gas= 13. 68. The speed field is composed of back flow region and joint jetting region. A the same time, the paper discusses the distributing characteristic of radial velocity and axial velocity in the two regions, and educes two dimension velocity distributing rule. The next heat test will be based on it.
出处
《江苏工业学院学报》
2008年第1期37-39,共3页
Journal of Jiangsu Polytechnic University
关键词
加热炉
平焰旋流烧嘴
冷态实验
速度场
PIV
furnac eprocess
flat--flame whirl flow burner
the cold model test
speed field
PIV
