Combustion device for inhibiting generation of oxynitride

• Main Authors: LIN WUBIN, CHEN DUNYU, LU JIANWEI, WU WEIFENG, ZHANG HAOYU, HUANG PEICONG, GU MEIANG
• Format: Patent
• Language: Chinese; English
• Published: 07.03.2023
• Subjects: AIR; AIR SUPPLY; BLASTING; BURNERS; COMBUSTION APPARATUS; COMBUSTION PROCESSES; DRAUGHT-INDUCING; HEATING; LIGHTING; MECHANICAL ENGINEERING; METHODSOR APPARATUS FOR COMBUSTION USING FLUID FUELOR SOLID FUEL SUSPENDED IN; SUPPLYING NON-COMBUSTIBLE LIQUID OR GAS; WEAPONS

The utility model relates to a combustion device for inhibiting generation of oxynitride. The combustion device comprises a premixing unit, a flow guide unit and a coal-fired boiler, the premixing unit is hollow and internally provided with a premixing cavity, one end of the premixing unit is provided with a secondary air inlet and a flue gas inlet, and the other end of the premixing unit is provided with a first mixed gas outlet; the flow guide unit comprises an outer flow guide cylinder and an inner flow guide cylinder; one end of the outer guide cylinder is a mixed gas inlet communicated with the first mixed gas outlet, and the other end of the outer guide cylinder is a second mixed gas outlet communicated with the coal-fired boiler; the inner guide cylinder penetrates into the outer guide cylinder along the axis of the outer guide cylinder, one end of the inner guide cylinder is a primary air inlet, penetrates through the side wall of the outer guide cylinder and extends to the outside of the outer guide