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在燃料炉中,烟气带走的热量是很大的.在冶金、机械等主要工业部门所用的燃料工业炉中,从炉尾排出的烟气温度高达600～1100℃,其热损失通常为30～50%.对此大量的高温余热资源如何经济有效地加以利用,已是工业炉节能的主要方向,也是企业提高能源利用率,解决企业能源供需矛盾、降低生产成本、提高经济效益的有效途径.几年来我们对这一问题已有了共识,在利用烟气余热方面做了大量的工作,如设计了各种类型的空气预热器,把烟气用来预热助燃空气,还有用烟气余热直接预热工件等.通过几年的
In fuel furnaces, the flue gases carry a great deal of heat, and in flue gas furnaces used in major industrial sectors such as metallurgy and machinery, flue gases are discharged from the furnace tail at temperatures as high as 600-1100 ° C, 30-50% .This large amount of high temperature waste heat resources, how to use it economically and effectively, is the main direction of industrial furnace energy conservation, but also improve the energy efficiency of enterprises to solve the contradiction between supply and demand of enterprises, reduce production costs, improve economic efficiency and effectiveness We have come to a consensus on this issue over the years and have done a great deal of work on the use of waste heat from flue gases such as the design of various types of air preheaters, the use of flue gas to preheat combustion air, and the like Flue gas waste heat directly to the workpiece, etc. Through a few years