加热炉包括有连续加热炉和室式加热炉等。金属热处理用的加热炉另称为热处理炉。初轧前加热钢锭或使钢锭内部温度均匀的炉子称为均热炉。广义而言，加热炉也包括均热炉和热处理炉。

The heating furnace c***ists of a continuous heating furnace and a chamber heating furnace. The heating furnace for metal heat treatment is also called the heat treatment furnace. Before the blooming of heating steel ingots or the internal temperature of ingot uniform called pit. Broadly speaking， the heating furnace includes furnace and heat treatment furnace.

燃料气的发热值:当其他条件相同时，燃料气的发热量越大，燃烧需要的空气量就越多，加热炉，其混合时间也就越长。当炉子的燃料由热值低的燃料改为高热值燃料时，为了保证其完全燃烧，加热炉报价，燃烧器在设计时需要注意改善燃料气与空气的混合条件。

The heating value of fuel gas when other conditi*** are the same， the greater the calorific value of fuel gas， the amount of air needed for burning more， the mixing time is longer. When the fuel of a furnace is changed from a fuel with low calorific value to a high calorific value fuel，推钢加热炉采购， in order to ensure its complete combustion， it is necessary to pay attention to improving the mixing condition of fuel gas and air in the design of the burner.

在使燃料能完全燃烧的情况下希望空气过剩系数越低越好。但过低可能造成燃烧不完全，而过高将增加了炉内空气量，降低炉子的热效率，对于强制通风或引风，还将增加动力消耗，烟气中的氧含量过多也将增加对炉管和其他部件的损失。

It is hoped that the higher the air surplus coefficient， the better the fuel can be completely burned. But too low may cause incomplete combustion， and too high will increase the volume of air in the furnace and reduce the thermal efficiency of the furnace. For forced ventilation or induced draught， it will also increase power c***umption and excessive oxygen content in the flue gas will also increase the loss of furnace tubes and other components.

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