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本文通过数学解析的方法,阐述了在工业企业中开展二次热能利用必须把回热利用置于首位,以促使工艺生产的强化与燃料的更大节约.对降低企业按产品计算的热力消耗指标,也从理论上给予了证明.文中通过燃料节约与生产强化方面产生的单位产品燃料消耗率的降低,说明回热利用的重要性,并进一步叙述实行炉烟再循环的闭式回热利用方式的某些特性,明确炉烟再循环对小型机组或工业炉用换热器不尽完善时同样具有节约燃料的功能.本文旨在指出当前仅以余热锅炉、余热发电为主的工业企业二次热能利用工作,在理论上是不完全正确的,也就是说,真正大幅度地节约燃料与促进生产强化并不是动力利用,而是回热利用.
In this paper, through mathematical analysis, it is expounded that in the industrial enterprises to carry out secondary heat utilization must put the use of heat recovery in the first place, in order to promote the strengthening of process production and fuel savings .To reduce the enterprise by product calculation of thermal energy consumption indicators , And also proved it theoretically.In this paper, the importance of recuperation is illustrated through the reduction of fuel consumption rate of unit product in terms of fuel saving and production enhancement, and the further utilization of closed recuperation , It is clear that the flue gas recirculation also has the function of saving fuel when the heat exchangers of small units or industrial furnaces are not perfect.The purpose of this paper is to point out that at present only industrial enterprises, mainly waste heat boilers and waste heat power generation, The utilization of heat energy is theoretically not entirely correct. In other words, truly substantial fuel savings and enhanced production are not power but heat recovery.