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author： 2020-05-12
Yueyang yuanda thermal energy equipment co., LTD is a high-tech burner manufacturer specialized in thermal energy technology research, development, production, sales and service.The company has obtained 36 national patents, and with hunan institute of science and technology, central south university, changsha non-ferrous metallurgy design institute and other senior experts jointly develop thermal products, undertake the design and manufacture of boiler low-nitrogen burner project.About the other two categories of low nitrogen burner, small make up next focus on about.
Self-recirculating low NOx burner, the principle is to use circulating flue gas to absorb heat and reduce the oxygen concentration of the oxidant used in combustion to control NOx.This burner is effective in reducing the temperature of NOx.
When burning a fuel with a high content of N, it is often used together with the two-stage combustion method.According to the introduction of the data, when the flue gas recycling rate is 20%, NOx inhibition effect is good, can make NOx emission concentration below 80mg/kg.
Finally, we say that the segmentation of flame type low nitrogen burner, the principle is to divide a large flame into several small flames, because the small flame heat dissipation surface is large, the flame temperature is reduced, so that the temperature of NOx;In addition, the flame becomes smaller, which shortens the residence time of nitrogen, oxygen and other gases in the flame, which has obvious inhibition effect on temperature NOx or fuel NOx.Split (split) burner and mechanical atomizing nozzle, near the nozzle outlet, the flame and a number of bar-shaped objects collide and split into several strands;The internal-mixing steam atomizing nozzle is used to produce several burning flames with several nozzles.Experiments show that these two types of burners not only have lower NOx production, but also lower soot concentration.NOx emission concentration is also super low, 35mg/kg for mechanical atomization splitting combustion, 42mg/kg for steam atomization splitting combustion.
Since the low nitrogen burner produced by yuanda thermal energy was put into the market, it has been widely used in boiler, kiln, machinery, petrochemical, metallurgy, thermal power, ceramic and other industries.