摘要
针对引进美国FW公司的配备双旋风分离式煤粉燃烧器的W型火焰锅炉 ,在相似模化的基础上建立冷态模型 ,利用热线风速仪与示踪法测量了不同工况下炉内的空气动力场 ,得出了不同工况下炉内流场的矢量图、火焰长度、炉内主气流在炉深方向上的分布曲线以及主气流充满度变化曲线 ,通过实验结果对炉内空气动力特性进行了分析 ,研究结果表明 ,沿水平方向高速送入炉内的三次风对炉内空气动力特性有显著影响。
With regard to a W shaped flame boiler imported from US Foster Wheeler Co. and fitted with dual swirl separation type pulverized coal burners a cold model was set up based on an analog simulation. With the help of an hot wire anemometer and by the use of a trace method measurements of in furnace aerodynamic field were taken under different operating conditions. As a result, obtained under various operating conditions were the vector diagrams of in furnace flow field, length of flame, curves of in furnace main gas flow distribution along the furnace depth direction and curves of variation of main gas flow filling fullness degree. On the basis of the experimental results an analysis was conducted of the in furnace aerodynamic characteristics. The results of an experimental study indicate that the tertiary air fed into the furnace at high velocity along a horizontal direction has a significant effect on the in furnace aerodynamic characteristics.
出处
《热能动力工程》
EI
CAS
CSCD
北大核心
2001年第3期263-266,281,共5页
Journal of Engineering for Thermal Energy and Power
