1 前言换热式烧嘴又称自身预热烧嘴,是50年代出现的高效燃烧装置,它集烧嘴和换热器于一体,利用烟气余热预热助燃空气,达到提高燃烧温度与节省燃料的目的。世界能源危机之后,这种烧嘴发展很快,70年代末80年代初,我国也开始对这种烧嘴进行试验研究,并取得成功。这种自身预热烧嘴一 1 Introduction The regenerative burner, also known as its own preheating burner, is an efficient combustion device that emerged in the 1950s. It integrates a burner and a heat exchanger and preheats the combustion air with waste heat of the flue gas to improve the combustion temperature and the saving The purpose of fuel. After the world energy crisis, the burners developed rapidly. In the late 1970s and early 1980s, our country began to experiment on such burners and achieved success. This one is a preheating burner