低氮燃燒器的常見6種分類（一）

燃燒器決定著燃料燃燒過程能不能實現完全燃燒，所以要減少NOx的生成量就要考慮燃燒器的性能。由燃燒器對NOx的生成量控制程度，我們把低氮燃燒器分為以下6種：

Burner determines the fuel combustion process can achieve complete combustion, so to reduce NOx generation to consider the performance of the burner. According to the control degree of NOx generation by the burner, the low-nitrogen burner is divided into the following 6 types:

1、階段燃燒器

1. Stage burner

The burner determines whether the combustion process can achieve complete combustion, so the performance of the burner should be taken into account to reduce the production of NOx. According to the degree of control of NOx production by burner, we divided the low nitrogen burner into 6 types:

2、自身再循環燃燒器

2. Self-recirculation burner

One is to use the pressure head of combustion-supporting air to absorb part of the burning smoke back into the burner and burn it with the air. Due to the recirculation of flue gas, the heat capacity of flue gas is large, the combustion temperature is reduced, and NOx is decreased. Another kind of self-recirculation burner is to put part of the flue gas into the recirculation directly in the burner and add the combustion process. This kind of burner has the dual effect of inhibiting nitrogen oxide and saving energy.

3. Thick and light type burner

The idea is that some of the fuel is burned too much, and some of the fuel is burned too little, but the total amount of air over the air remains the same. Since both parts are burning away from the chemical equivalence ratio, the NOx is very low, which is also called deviation combustion or non-chemical equivalent combustion.