公开(公告)号：EP1015814A4

公开(公告)日：2000-07-05

申请号：EP97946236

申请日：1997-11-12

申请人： BABCOCK & WILCOX CO

发明人： SIVY JENNIFER L ,  KOSLOSKY JOHN V ,  KAUFMAN KEITH C ,  RODGERS LARRY W ,  LARUE ALBERT D ,  SARV HAMID

IPC分类号： F23D1/02 ,  F23C1/10 ,  F23C1/12 ,  F23C7/00 ,  F23C7/02 ,  F23D1/00 ,  F23D17/00 ,  F23K3/02 ,  F23C9/00 ,  F23M9/00

CPC分类号： F23C7/004 ,  F23C2201/20 ,  F23D1/00

摘要： A burner having lower emissions and lower unburned fuel losses by providing a transition zone to act as a buffer between the primary and secondary air streams. The transition zone provides improved control of near-burner mixing and flame stability by providing limited recirculation regions between primary and secondary streams. These limited recirculation regions transport evolved NOx back towards an oxygen-lean pyrolysis zone for reduction to molecular nitrogen.