What is a low nitrogen burner

What low-nitrogen burners are currently on the market?

The NOx emissions of burners used in traditional natural gas boilers are around 120~150 mg. Low-nitrogen burners generally refer to burners with NOx emissions of 30~80 mg. NOx emissions below 30 mg are generally called ultra-low-nitrogen burners.

1. Traditional burner NOx emissions are mainly due to the following reasons:

1. In order to ensure full combustion, a large amount of excess air is used;

2. The combustion temperature is generally around 1800 degrees;

2. Low-nitrogen burners are generally based on the following technologies:

1. Electronic ratio adjustment and oxygen content control technology to accurately control the oxygen content;

2. FGR flue gas recirculation technology to reduce flame temperature and oxygen content;

3. Fully premixed surface combustion technology to reduce flame temperature and achieve full combustion.

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