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针对工业燃气炉窑能耗大、热效率低等现状,提出一种在温度控制算法之后增加节能控制策略环节来实现节能的方法。节能控制策略是通过炉内温度变化判断高温烟气与工件之间的热交换程度,并实时调整燃气输出量,实现对燃气输出量的最优化控制。热交换充分,热量利用率高;燃气输出量最优,燃气燃烧后产生的烟气量少,烟气排放时余热损失少。该方法在炉膛温度控制的同时又实现了节能的目的,可进一步提高燃气炉窑的热效率。
Aiming at the current situation of large energy consumption and low thermal efficiency of industrial gas furnaces, a method of increasing energy saving control strategy after temperature control algorithm is proposed to save energy. The energy-saving control strategy is to judge the degree of heat exchange between the high-temperature flue gas and the workpiece through the temperature change in the furnace, and adjust the gas output in real time to realize the optimal control of the gas output. Full heat exchange and high heat utilization rate; the gas output is optimal, the amount of flue gas generated after combustion of the gas is small, and the waste heat loss is less when the flue gas is discharged. The method achieves the purpose of energy saving while controlling the furnace temperature, and can further improve the thermal efficiency of the gas furnace.