【摘要】 四角布置切圆燃烧方式的锅炉，由于炉膛出口气流残余旋转的存在，引起水平烟道内烟气沿宽度方向烟温分布不均匀，导致高温过热器局部超温、爆管。该文指出，改变燃烧器的布置方式并进行燃烧调整是削弱炉膛出口气流残余旋转，进而减小水平烟道内的烟温偏差的好方法。更多还原

【Abstract】 In corner arrangement tangetial firing boiler, the existing of remaining whirl of furnace oulet gas flow would cause gas temperature deviation along the width direction in the horizontal gas pass, which would lead to local overheating and tube rupture in high temperature superheater. This paper points out that to change burner arrangement and adjust the burning are good ways to decerease remaining whirl of furnace outlet gas flow so as to reduce gas temperature deviation in horizontal gas pass.更多还原