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1 前言利用换热器回收烟气余热预热燃烧用空气或煤气,是工业炉窑节约能源的有效措施。近十多年来,经过国内热工人员的不懈努力,相继开发了多种新型金属换热器。这些换热器的开发大大提高了烟气余热利用率,为我国工业炉窑的节能工作做出了贡献。
1 Preface The use of heat exchangers to recover flue gas waste heat Preheating combustion air or gas, industrial kilns energy saving is an effective measure. In the past ten years, after the unremitting efforts of domestic thermal workers, have developed a variety of new metal heat exchanger. The development of these heat exchangers has greatly enhanced the utilization rate of flue gas waste heat and contributed to the energy saving work of industrial kilns in China.