How do low nitrogen gas boilers emit "low nitrogen"?
2022-02-21 10:10:44
The low nitrogen gas boiler is upgraded on the basis of the ordinary gas boiler, and its advantage is that the emission of nitrogen oxides is very low. Mainly aimed at the nitrogen oxide emission policy standards issued by my country, Beijing, Zhengzhou, Xi'an and other cities have gradually started to implement 30 mg of nitrogen oxide emissions, which is the most stringent standard in the country. Others, for different cities, there are different standards such as 80 mg and 150 mg. You can check the specific emission requirements according to your own area.
1. Full premixed combustion technology
In layman's terms, this technology is to mix fuel and auxiliary gas (air) in a certain proportion before entering the burner for combustion to achieve an optimal combustion state. This can not only improve the combustion efficiency of fuel, but also reduce the emission of harmful gases (mainly nitrogen oxides) to a great extent, and also reduce the space requirement of the combustion chamber. Technology.
2. FGR flue gas recirculation combustion technology
This combustion technology means that a pipe is connected at the end of the boiler flue to connect to the combustion chamber of the boiler, and a part of the flue gas participates in the combustion again, and the purpose of reducing nitrogen oxide emissions is achieved by reducing the combustion temperature (here again involves a knowledge Point: Under certain temperature conditions, the higher the temperature, the more nitrogen oxide emissions).
The above two are the most widely used methods for reducing nitrogen oxides in gas boilers. Many large and professional boiler manufacturers have also worked hard on these two combustion technologies. Take Henan Fangkuai boiler for example. These two technologies are used very well. The boilers produced can meet the demand of 80 mg. For cities with strict requirements, there are also star products of 30 mg.
1. Full premixed combustion technology
In layman's terms, this technology is to mix fuel and auxiliary gas (air) in a certain proportion before entering the burner for combustion to achieve an optimal combustion state. This can not only improve the combustion efficiency of fuel, but also reduce the emission of harmful gases (mainly nitrogen oxides) to a great extent, and also reduce the space requirement of the combustion chamber. Technology.
2. FGR flue gas recirculation combustion technology
This combustion technology means that a pipe is connected at the end of the boiler flue to connect to the combustion chamber of the boiler, and a part of the flue gas participates in the combustion again, and the purpose of reducing nitrogen oxide emissions is achieved by reducing the combustion temperature (here again involves a knowledge Point: Under certain temperature conditions, the higher the temperature, the more nitrogen oxide emissions).
The above two are the most widely used methods for reducing nitrogen oxides in gas boilers. Many large and professional boiler manufacturers have also worked hard on these two combustion technologies. Take Henan Fangkuai boiler for example. These two technologies are used very well. The boilers produced can meet the demand of 80 mg. For cities with strict requirements, there are also star products of 30 mg.
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