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四角布置的切圆燃烧的直流式燃烧器,相对于旋流式燃烧器来讲,具有着火条件优越,煤种适应性强,后期混合扰动强烈等优点。因而,在国内外电站锅炉上得到了广泛的应用。但是,在炉膛内从燃烧器喷出的气流并不沿其喷口几何轴线运动,而是出现一定程度的偏离,当偏离严重时,会导致燃烧器射流贴附或冲击炉墙,造成炉墙结焦,影响锅炉机组的安全经济运行。因此,研究四角切园燃烧炉内气流的流动特性,分析一次风射流偏转的原因,从而采取相应的措
Tangentially burned DC burners arranged in four corners have the advantages of excellent fire conditions, strong coal adaptability and strong post-mixing disturbance, compared with the swirling burners. Therefore, it has been widely used in power plant boilers at home and abroad. However, the flow of gas emanating from the burner in the furnace does not move along the geometrical axis of the nozzle, but a certain degree of deviation occurs. When the deviation is serious, the jet of the burner will stick or impact the furnace wall, causing the furnace wall to coking , Affecting the safe and economic operation of the boiler unit. Therefore, the study of the flow characteristics of the airflow in the cephalosporin burning furnace, analysis of the reasons for the deflection of the primary air jet to take appropriate measures