本文讨论了火焰炉内的总热交换量。论证冲击喷流是强化炉内对流传热的一种有效措施,被加热物料的黑度越小,它在强化传热中的作用越大。冲击喷流条件下的对流给热系数决定于Re准数和几何参数S/d、H/d。工业炉应用喷流换热,不但可增加炉子产量,而且可以降低燃料消耗。 This article discusses the total heat exchange in a flame furnace. It is proved that the impinging jet flow is an effective measure to enhance the convective heat transfer in the furnace. The smaller the blackness of the heated material, the greater its role in enhancing the heat transfer. The convection heat transfer coefficient under impact jet flow is determined by Re quasi-number and geometric parameters S / d, H / d. Industrial furnace jet heat transfer, not only can increase the furnace output, but also can reduce fuel consumption.