03-1巴威公司低NOX燃烧器Burners发展.ppt

BW’S Full Complement of Systems to Reduce NOX Burner Designs Low NOx Cell Burner Development of BW’s Low NOX Coal-Fired Burner Technology Burner Air Measurement Pilot Grid Burner Measuring Device Low NOX DRB-4Z? Burner Combustion Zones Operating Low NOX DRB-4Z?Coal-fired Burner - Plant A Inlet Coal Nozzle View ofDRB-4Z? Low NOX Burner DRB-4Z? Low NOX Coal-fired Burner (Transition Zone Inlet Damper Shown) OG Burners Combustion.* OG Burners Combustion.* George Nikitenko Combustion Design Engineer Fuel preparation system upgrades Low NOX burner systems Air staging systems (OFA) Fuel staging systems (reburn) SCR systems Services BW Low NOX Combustion Systems Typically 0.3-0.4 lb/106Btu (DRB-XCL?, TSC, HVB) Best 0.15-0.20 lb/106Btu (DRB-XCL?, TSC, SUBB) 0.15 Potential (DRB-4ZTM, TSC, SUBB) Circular Cell Dual Register Burner (DRB) S Burner (coal fired) DRB-XCL? (axial control low NOX) LNCBTM (Low NOX CellTM) DRB-4Z? Over-fire air or NOx ports Circular Burner Multi-fuelCellBurner Low NOx Cell Burner I-Jet Oil Gun Adjustable hemispherical gas spuds Linear Actuator Core air damper Support Structure Flow balancing damper Externally adjustable spin vanes Flow measurement grid XCL-S? Oil/Gas Low N0x Burner BW Low NOX Burner Evolution DRB - Phase V Burner 1980* S - Type Burner 1984* DRB-XCL? Burner 1986* - Lower NoxMechanical Reliability 1988 - Plug-In, Lower UBC Phase V Dual Register Burner with CFA Lighter Pulverizer DRB System with Compartmented Windbox Low NOX DRB-XCL? Burner Outer Zone Adjustable Vane Stationary Vane Pulverized Coal and Primary Air Inlet Conical Diffuser Sliding Air Damper Air Measuring Pitot Grid Inner Zone Adjustable Vane Low NOX DRB-XCL? Burner BW Bladed Impeller Ultra Low NOX DRB-4Z? Coal Fired Burner Low NOX DRB-4Z? Coal-Fired Burner (Sectional Sideview) 1 Coal and Primary Air 2 New-Transition Zone 3 Inner Air Zone 4 Outer Air Zone 675 MW boiler PRB fuel 56 burners (40 pc/gas) 12 OFA ports panels FPS gas ignitors The Babcock Wilcox C