Gas boiler with SCR (Selective Catalytic Reduction) denitration device

The utility model relates to a gas boiler with an SCR denitration device, and belongs to the field of gas boilers. The system comprises a low-nitrogen turbulent burner, a hearth, a superheater system, a tail shaft flue, an ammonia spraying and flow equalizing device, a high-temperature economizer, an SCR denitration device, a low-temperature economizer and an air preheater, the low-nitrogen turbulent burner, the hearth, the superheater system, the ammonia spraying flow equalizing device, the high-temperature economizer, the SCR denitration device, the low-temperature economizer and the air preheater are sequentially arranged in the flue gas flowing direction. 本实用新型涉及一种带SCR脱硝装置的煤气锅炉，属于煤气锅炉领域。本实用新型包括低氮旋流燃烧器、炉膛、过热器系统、尾部竖井烟道、喷氨均流装置、高温省煤器、SCR脱硝装置、低温省煤器和空气预热器，所述低氮旋流燃烧器、炉膛、过热器系统、喷氨均流装置、高温省煤器、SCR脱硝装置、低温省煤器和空气预热器为沿着烟气流动方向依次布置。