电站锅炉炉膛内火焰刷墙时对流换热系数的计算方法

Calculating Method of Convection Heat Transfer under the Impact of Flame on the Wall in Pulverized Fuel Boiler Furnace

分析了电站锅炉炉膛内火焰刷墙时的对流换热，提出了火焰刷墙时的对流换热由烟气对流换热和粒子对流换热组成的换热模型。按此模型的计算结果与试验数据符合良好。图５ 表２

This paper analyzes the convection heat transfer under the impact of flame on the wall in pulverized fuel boiler furnace, proposes its model that convection heat transfer is composed of gas convection heat transfer and particle convection heat transfer. According to the model, the calculation are carried out, and the calculating results accord with the experimental data basically. Figs 5, tables 2 and refs4.