Ultra-low nitrogen gas burner

Abstract

The invention discloses an ultra-low nitrogen gas burner, which comprises a combustion cylinder, a shell and a motor, wherein the combustion cylinder is connected through a rotary positioning pin, thecombustion cylinder is a necking combustion cylinder, the front end of the combustion cylinder is provided with a flue gas internal circulation channel, the flue gas is sucked into the channel to bemixed with combustion-supporting air, a fuel pipe is arranged in the combustion cylinder along the central axis, a plurality of primary fuel spray guns and secondary fuel spray guns which are arrangedaround the circumference of the fuel pipe are also arranged in the combustion cylinder, the ring layer of the primary fuel spray guns is arranged outside the ring layer of the secondary fuel spray guns, and the primary fuel spray guns and the secondary fuel spray guns are arranged at intervals around the inner ring layer and the outer ring layer of the circumference of the fuel pipe, a combustionstabilizing cover is arranged between the fuel pipe and the combustion cylinder, a plurality of blades are arranged in the combustion stabilizing cover; and after passing through the combustion stabilizing cover, the combustion-supporting air is changed into rotational flow air from direct flow air. The ultra-low nitrogen gas burner can achieve balanced combustion, reduce the yield of nitrogen oxides and meet the requirements of energy conservation and environmental protection.

Description

technical field [0001] The invention relates to the technical field of thermal energy, in particular to an ultra-low nitrogen gas burner. Background technique [0002] In recent years, with the sustained and stable development of the economy, the emission of NOx has also increased rapidly, and the various harms caused by NOx to humans have also increased sharply. NOx is an important culprit of acid rain and haze, and NOx can also be transformed into Nitrate particles form PM2.5, which seriously threatens human life and health. The country's environmental protection requirements are becoming more and more stringent, and the NOx emission of gas-fired boilers is gradually required to be ≤30mg / Nm³. Existing burners have large NOx emissions and cannot meet people's requirements. Ultra-low nitrogen emissions are also a new concept for many burner manufacturers in Europe and the United States. Therefore, the development of ultra-low nitrogen burners that meet my country's national...

AI Technical Summary

Problems solved by technology

Existing burners have large NOx emissions and cannot meet people's requirements. Ultra-low nitrogen emissions are also a new concept for many burner manufacturers in Europe and the United States. Therefore, the development of ultra-low nitrogen burners that meet my country's national conditions has already imminent

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