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Low NOx Combustion Technology
Low NOx Combustion Technology
Low NOx Combustion Technology

Low NOx Combustion Technology

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The first generation of Low NOx combustion technology: the basic characteristics of the combustion system does not require big changes, but the way of combustion device running or part of running adjustment or improvement. Such as: low excess air coefficient running, reduce the combustion-supporting air preheat temperature.


The second generation of low NOx combustion technology: the air and fuel are classified into the furnace, make the main burner downstream to form a enrichment of NH3, CmHn, HCN hypoxic reduction zone, when combustion products through this area, partly generated NOx is reduced to N2. Belongs to this generation of typical technology is wall type and tangentially firing three stage combustion technology.


Low NOx burner: in accordance with combustion technology and principle, low NOx burner divide into three categories of air staged combustion, fuel staged combustion and flue gas recirculation. Among them the air classification of low NOx burners is the most widely used currently.


The most mature technology third-generation of low NOx burner combustion technology: it is characterized by the combustion air classified into the combustion device, reducing the oxygen concentration of the fire zone, corresponding lower flame peak temperature. Belong to this generation of technology has the most widely used in a variety of low NOx burner air classifier power plant boiler at this stage.

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