Patent ID: 8984863
Filing Date: 2015-03-24
Classification: B01D,B01F,F01D,F05D,F23J,Y10T

Abstract:
1. An ammonia injection device installed at an exhaust gas duct through which an exhaust gas generated in a combustor flows, and configured to inject ammonia into the exhaust gas at an upstream side of a denitration catalyst configured to perform denitration processing in a flowing direction of the exhaust gas, the ammonia injection device comprising: a plurality of ammonia injection pipes disposed in parallel with each other in a surface which traverses the exhaust gas duct, wherein a plurality of nozzle pipes configured to eject the ammonia from the ammonia injection pipes in an arrangement direction of the plurality of ammonia injection pipes are installed at the ammonia injection pipes in a longitudinal direction of the ammonia injection pipes, and a respective diffuser panel is formed at each nozzle pipe of the plurality of nozzle pipes, each of the panels extending toward a downstream side in a flowing direction of the exhaust gas and also extending toward both sides in a longitudinal direction of the ammonia injection pipes centered on the corresponding nozzle pipe.