切向燃烧锅炉炉膛内旋流数分布的研究  

An Investigation of the Distribution of Swirl Numbers in the Furnace of a Tangentially Fired Boiler

作　　者：李彦鹏[1] 徐益谦[1] 刁永发[2] 许晋源[2] 

机构地区：[1]东南大学热能工程研究所,江苏南京210096 [2]西安交通大学热能工程系,陕西西安710049

出　　处：《热能动力工程》2001年第5期477-480,共4页Journal of Engineering for Thermal Energy and Power

基　　金：国家重点基础研究专项经费基金资助项目 (G19990 2 2 2 0 9)

摘　　要：针对哈三电厂 6 0 0MW四角切向燃烧锅炉分别进行了冷态试验与数值模拟 ,重点研究了表征气流旋转强度的旋流数的分布规模 ,发现炉内实际旋流数远远大于锅炉设计校核时所用的旋流数 ,并提出从锅炉结构上减少残余旋转的措施。With regard to a 600 MW tangentially fired boiler cold state tests and numerical simulation were conducted with an in depth study on the distribution law of swirl numbers, which characterize gas flow swirl intensity. It has been found that the actual swirl numbers in the boiler are by far greater than those selected during the design verification of the boiler. Some measures are proposed for lessening residual swirl flow from the viewpoint of boiler structural design. The present study can be of immense help for boiler design verification and the prevention of residual swirls.

关 键 词：切向燃烧炉 三维热膜风速仪 旋流数分布 锅炉 炉膛 残余旋转 

分 类 号：TK224.1[动力工程及工程热物理—动力机械及工程]