加热质量好。加热时介质出炉温度需符合工艺要求，防止局部过热出现结焦、结炭或***。

燃料消耗低。站场用加热炉的能量消耗有10～15％消耗于炉子上，节省的燃料对降低单位成本和节约能源都有重要意义。

The quality of heating is good. The heating temperature of the medium should meet the requirements of the process, preventing the local overheating from coking, carbon or explosion.

Fuel cumption is low. The energy cumption of the reheating furnace in the station is 10 ~ 15% on the furnace. The fuel s***ing is of great significance to reducing unit cost and s***ing energy.

燃料气与空气的混合物在燃烧焰面法线方向的速度分量大于该混合物的火焰传播速度，则火焰被推出火孔，开始离焰，直到火焰被吹跑造成火焰熄火——脱火。燃烧器发生脱火是不允许的。

The velocity component of the mixture of fuel gas and air in the normal direction of combustion flame is larger than that of the mixture, and the flame is pushed out of the fire hole and starts to le***e the flame until the flame is blown away, causing the flame to go out. It is not allowed to remove fire from the burner.

对流传热：对流传热是炉气与钢材表面接触时的热交换过程，包括炉气各部分发生位移所产生的对流作用及炉气分子之间的导热作用。

Convective heat transfer: convection heat transfer is the heat exchange process of the contact between the furnace gas and the steel surface, including the convection of the displacement of each part of the furnace gas and the heat conduction between the molecules of the furnace gas.