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这里介绍日本在原能耗的基础上,有关工业炉今后主要节能技术的发展途径。 1 工业炉今后的节能技术 工业炉节能技术,在1981年发行的“工业炉节能便览”中整理出技术项目,这些要素技术适用于多方面,因此,今后为了进一步节能,必须作好下述工作。 (1)促进这些已有技术更有实效的利用; (2)特别要在废热回收和提高传热能力,以及提高效率方面技术的新开发。 1.1 排烟热的回收 支配工业炉热效率的最大因素,众所周知是排烟造成的热损失,因抑制排烟热损失
Here on the basis of Japan’s original energy consumption, Japan introduced the main energy-saving technologies in industrial furnaces. 1 Industrial furnaces future energy-saving technologies Industrial furnaces energy-saving technologies, in 1981, “Industrial Furnace Energy Conservation Overview” sorted out technical projects, these elements of technology is applicable to many aspects, therefore, in the future in order to further energy-saving, we must make the following work . (1) Promote the more effective use of these prior art technologies; and (2) New developments in technology, especially in waste heat recovery and heat transfer enhancement, as well as in efficiency. 1.1 Heat recovery of exhaust heat The biggest factor that dominates the thermal efficiency of industrial furnaces is that it is known to be the heat loss caused by smoke exhaust,