Study of Unequal Speed Leveling Of Pulverized Coal Piping in Cold State

3rd International Symposium on Resource Exploration and Environmental Science

生态环境科学

Zhang, Tianyu^1 ; Wu, Feng^1 ; Zhao, Xi^1 ; Zhao, Zhenning^1

North China Electric Power Research Institute, Beijing

100032, China^1

关键词: Coal powder;    Cold state;    Equivalent wind;    Equivalent wind speed;    Flow of coal;    Opening degree;    Operating condition;    Pulverized coals;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/300/2/022121/pdf
DOI  :  10.1088/1755-1315/300/2/022121

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Thee equality of flow of coal powder and wind in each pulverized coal piping makes great differences on the heat flux uniformity in combustion chamber. Thus, a common way to ensure the equality is to change the opening degree of the adjusting holes on the piping to get equivalent wind flow in cold state. However, the operating condition of the piping is in hot state with coal powder, which changes the resistance characterizes in each piping. Present paper casts light on the calculation method of unequal speed leveling in cold state, in order to get equivalent wind speed in hot state with powder.