唐山发电厂7号炉,燃用煤种发热量为3000大卡/公斤,灰份45%,历年来飞灰磨损严重。在提高设备出力过程中,他们既有敢想敢干的革命精神,又有严格的科学精神,对省煤器进行了改造,取得了显著效果。一、改前设备情况省煤器布置在尾部烟道内,分上、中、下三层,中、下层之间为高温空气预热器。单侧烟道断面尺寸是2640×4250毫米,每 No.7 furnace in Tangshan Power Plant, with 3000 Kcal / kg of combustible coal and 45% ash, had serious abrasion over the years. In improving the output of equipment, they not only have the courage to dare to revolution, but also a strict scientific spirit, the economizer has been transformed, and achieved remarkable results. First, the equipment before the change Economizer arranged in the tail of the flue, points, middle and lower three, middle and lower layers between the high-temperature air preheater. Single-sided flue section size is 2640 × 4250 mm, each