公开(公告)号：EP1015814B1

公开(公告)日：2007-01-10

申请号：EP97946236.3

申请日：1997-11-12

申请人： THE BABCOCK & WILCOX COMPANY

发明人： SIVY, Jennifer, L. ,  KOSLOSKY, John, V. ,  KAUFMAN, Keith, C. ,  RODGERS, Larry, W. ,  LaRue, Albert, D. ,  SARV, Hamid

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

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.

公开(公告)号：EP1015814A2

公开(公告)日：2000-07-05

申请号：EP97946236.3

申请日：1997-11-12

申请人： THE BABCOCK & WILCOX COMPANY

发明人： SIVY, Jennifer, L. ,  KOSLOSKY, John, V. ,  KAUFMAN, Keith, C. ,  RODGERS, Larry, W. ,  LaRue, Albert, D. ,  SARV, Hamid

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

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

摘要： A burner (40) having a transition zone (46) to act as a buffer between the primary zone (42) and the secondary zones (48, 50). The transition zone (46) allows improved control of near-burner mixing and flame stability by providing limited recirculation regions between the primary zone (42) and the secondary zones (48, 50). These limited recirculation regions transport evolved NOx back towards an oxygen-lean pyrolysis zone near the burner exit (52) for reduction to molecular nitrogen, thus decreasing emissions and unburned fuel losses.

摘要翻译： 燃烧器（40）具有过渡区（46）以充当主要区（42）和次要区（48,50）之间的缓冲区。 通过在主区域（42）和次区域（48,50）之间提供有限的再循环区域，过渡区域（46）允许改善对近燃烧器混合和火焰稳定性的控制。 这些有限的再循环区域将逸出的NO x运送回燃烧器出口（52）附近的贫氧热解区以还原成分子氮，从而降低排放和未燃烧的燃料损失。