加熱爐的分類:

1.有純加熱爐，如常壓爐、減壓爐等；有加熱爐反應(yīng)爐，如裂解爐、焦化爐等。  

2.按傳熱方式分類：有純對流式爐、輻射對流式爐和輻射式爐。

The classification of the heating furnace:

1. there are pure heating furnaces, such as ctant pressure furnace, pressure reducing furnace, and so on; there are reheating furnace reaction furnaces, such as cracking furnace and coking furnace.  

2. classified according to the heat transfer mode: there are pure convection furnace, radiant convective furnace and radiant furnace.

按爐型結(jié)構(gòu)分類：有箱式爐、立式爐等。  按燃燒形式分類：底燒式爐、側(cè)燒式爐。  按供風形式分類：強制供風爐、自然供風 .

Classification of heating furnace:

According to the type of furnace type structure, there are box type furnace, vertical furnace and so on. According to the form of combustion, the bottom burning furnace and the side burning furnace. Classification according to the form of air supply: forced air supply furnace and natural supply wind.

空氣過剩系數(shù):增大空氣過剩系數(shù)，可以加速混合，使火焰變短，反之則混合緩慢，火焰拉長。這兩種情況都有一些實際利用的例子。

Air surplus coefficient: increase the air surplus coefficient, can accelerate the mixing, make the flame shorter, and vice versa, slow mixing, flame elongated. There are some examples of practical use of these two cases.

觀察氣體燃料從擴散燃燒逐步地改變成半預混燃燒的變化過程可以更加清楚地了解半預混燃燒燃燒，預混燃燒的特點。

The gradual change of gaseous fuel from diffusion combustion to semi premixed combustion is observed, and the characteristics of semi premixed combustion and premixed combustion can be more clearly understood.