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    • 1. 发明申请
    • PULVERIZED SOLID FUEL NOZZLE TIP
    • PULVERIZED固体燃料喷嘴提示
    • WO1998001704A1
    • 1998-01-15
    • PCT/US1997010874
    • 1997-06-13
    • COMBUSTION ENGINEERING, INC.
    • COMBUSTION ENGINEERING, INC.DUBY, Thomas, G.FONG, Milton, A.HELLEWELL, Todd, D.MANEY, Charles, Q.SRINIVASACHAR, SrivatsTOQAN, Majed, A.
    • F23D01/00
    • F23D1/00F23C5/06F23C7/02F23D2201/101
    • A minimum recirculation flame control (MRFC) solid fuel nozzle tip (12) that is particularly suited to being cooperatively associated with a pulverized solid fuel nozzle (34) of a firing system of the type employed in a pulverized solid fuel-fired furnace (10). The MRFC solid fuel nozzle tip (12) when so employed is operative to minimize low and negative, i.e., recirculation, velocity regions of the exit plane of the MRFC solid fuel nozzle tip (12), and to reduce available deposition surface on the MRFC solid fuel nozzle tip (12), and to vary the nozzle tip (12)/solid fuel nozzle (34) thermal conditions to keep the "hot" solid fuel particulate matter from depositing on available metal platework surface of the MRRC solid fuel nozzle tip (12). The MRFC solid fuel nozzle tip (12) includes fuel air shroud means (46), primary air shroud means (48) located within the fuel air shroud means (46), fuel air shroud support means (50) operative for supporting the primary air shroud means (48) relative to the fuel air shroud means (46), and splitter plate means (52) mounted in supported relation within the primary air shroud means (48).
    • 一种最小再循环火焰控制(MRFC)固体燃料喷嘴尖端(12),其特别适于与粉碎的固体燃料燃烧炉(10)中使用的燃烧系统的粉碎固体燃料喷嘴(34)协同地相关联 )。 当采用这种方式时,MRFC固体燃料喷嘴尖端(12)可操作以最小化MRFC固体燃料喷嘴尖端(12)的出口平面的低负值,即再循环速度区域,并减少MRFC上的可用沉积表面 固体燃料喷嘴尖端(12),并且改变喷嘴尖端(12)/固体燃料喷嘴(34)的热条件以保持“热”固体燃料颗粒物质沉积在MRRC固体燃料喷嘴尖端的可用金属板表面上 (12)。 MRFC固体燃料喷嘴头(12)包括燃料空气罩(46),位于燃料空气罩(46)内的主空气罩装置(48),燃料空气罩支撑装置(50),用于支撑一次空气 护罩装置(48)相对于燃料空气护罩装置(46),以及分离板装置(52),其以支撑的方式安装在主空气罩装置(48)内。