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望亭发电厂12号炉系燃油直流锅炉,其燃烧器为前后墙平行错列布置方式,水冷壁采用一次上升、中间二次混合的管圈型式。炉膛热负荷分布情况是分析和研究水冷壁水动力特性、传热特性以及炉内燃烧过程的重要基础。经多次测定,在20～28万瓩负荷下,沿炉膛高度方向热负荷分布不均匀系数K_(qy)=1.50～1.60,沿炉膛深度方向热负荷分布不均匀系数K_(qx)=1.12～1.15,最高局部热负荷q_(max)=300～330×10~3(大卡/米~2时)。
Wang Ting Power Plant No. 12 furnace fuel direct-fired boiler, the burner is arranged in parallel staggered front and rear walls, water wall using a rise, the middle of the second mixing of pipe type. Furnace heat load distribution is to analyze and study the hydrodynamic characteristics of water wall, heat transfer characteristics and furnace combustion process is an important foundation. After several measurements, the distribution coefficient of thermal load along the height of the furnace under the load of 20 ~ 280000 K is K = (qy) = 1.50 ~ 1.60, and the distribution coefficient of thermal load along the depth of the furnace is K = (qx) = 1.12 ~ 1.15, the highest local heat load q_ (max) = 300 ~ 330 × 10 ~ 3 (Kcal / m ~ 2 o’clock).