Low-NoX emission and efficient energy-saving combustor capable of combusting heavy oil, oil slurry and gas

Abstract

The invention discloses a low-NoX emission and efficient energy-saving combustor capable of combusting heavy oil, oil slurry and gas. The low-NOx-emission and efficient energy-saving combustor comprises a brazier brick, a combustion-supporting air channel penetrating through the brazier brick up and down is formed in the center of the brazier brick, the bottom of the brazier brick is fixedly connected with a silencing barrel, an air regulator is arranged on a lower portion of the silencing barrel, and the bottom of the silencing barrel is detachably connected with a lower end of an oil gun component and a lower end of a gas gun component; the oil gun component comprises an inner oil gun and an outer oil gun, the gas gun component comprises an outer gas gun and an inner gas gun, and an upper end of the inner oil gun and an upper end of the inner gas gun both extend into the combustion-supporting air channel; and an upper portion of the outer side face of the brazier brick contracts inwards to form a conical face, and the conical face, the combustion-supporting air channel and the top of the brazier brick communicate with one another through a plurality of round holes. The combustoris suitable for combusting heavy oil, oil slurry and various fuel gases, the local concentration in the flame of the combustor can be controlled, over-rich and over-lean burning of the fuel is realized, and low NOx combustion emission is realized.

Description

technical field [0001] The invention relates to the technical field of burners, in particular to a low NOx emission high-efficiency energy-saving burner capable of burning heavy oil, oil slurry and gas. Background technique [0002] The existing oil-gas combined burner only burns diesel oil with good viscosity and fuel gas with a fuel pressure higher than 0.02MPa, and most of the structures are an oil gun in the middle, several gas guns on the periphery, and large and small brazier bricks; The atomization is incomplete and the flame is too concentrated in the center; the smoke emission is not up to the standard, especially the NOx emission is super high; if the heavy oil, oil slurry and asphalt with high viscosity are burned, the chimney will emit black smoke, and if the fuel pressure is lower than 0.02MPa The fuel gas will flash back. Heavy oil and oil slurry have high calorific value, low cost, and large storage capacity. Therefore, it is imminent to develop a low-NOx emi...

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Problems solved by technology

[0002] The existing oil-gas combined burner only burns diesel oil with good viscosity and fuel gas with a fuel pressure higher than 0.02MPa, and most of the structures are an oil gun in the middle, several gas guns on the periphery, and large and small brazier bricks; The atomization is incomplete and the flame is too concentrated in the center; the smoke emission is not up to the standard, especially the NOx emission is super high; if the heavy oil, oil slurry and asphalt with high viscosity are burned, the chimney will emit black smoke, and if the fuel pressure is lower than 0.02MPa backfiring of the fuel gas

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