广东省龙川县氮肥厂采用蒸汽降温的方法,防止了沸腾锅炉由于炉温升高而引起的炉膛结疤。这种方法是通过一根直径45毫米的管子(中间串联两只阀门),把饱和蒸汽引入风箱四角,在炉膛温度升高可能引起结疤时,打开蒸汽阀门,让蒸汽进入风箱,和鼓风空气一起通过风帽进入沸腾段,炉温便立 Longchuan County, Guangdong Province, nitrogenous fertilizer plant using steam cooling method to prevent the boil-off boiler due to furnace temperature caused by the furnace scarring. In this method, saturated steam is introduced into the four corners of a bellows through a 45 mm diameter pipe (two valves in series). When the temperature in the furnace may cause scarring, the steam valve is opened to allow steam to enter the bellows and blow air The air enters the boiling section through the hood, the temperature of the furnace stands