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我厂锻工车间于1983年8月至1984年1月,经过近半年左右时间的节能技术改造,取得了显著的节能效果,锻工车间1984年比1982年节约重油200吨左右。所以取得上述成果,其中利用烟气余热,而设置空气预热器是这项节能改造的主要措施之一。空气预热器是工业炉回收余热的一种有效装置。因为工业炉的烟气带走大量的热。根据我厂锻造炉在改造前所做的热平衡测试中的数据可知,新线(我厂流水线名称)从炉门和出料口溢出的大量物理热占整个热支出的51.74％,折合成发热值为9868kcal/kg的重油(我厂使用的重油),相当
Our factory forging workshop in August 1983 to January 1984, after nearly six months or so energy-saving technological transformation, and achieved significant energy savings, forging workshop in 1984 than in 1982 to save 200 tons of heavy oil. So to achieve the above results, which use waste heat, and set the air preheater is one of the major energy-saving measures. Air preheater is an effective device for recovery of waste heat from industrial furnaces. Because the flue gas from industrial furnaces takes away a lot of heat. According to the heat balance test made by our factory forging furnace before transformation, we can see that a large amount of physical heat overflowed from the furnace door and discharge port accounted for 51.74% of the total heat expenditure, which is converted into the calorific value 9868kcal / kg of heavy oil (heavy oil I plant), quite