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    • 51. 发明公开
    • COMBUSTION APPARATUS WITH INDIRECT FIRING SYSTEM
    • VERBRENNUNGSVORRICHTUNG MIT EINER INDIREKTEN Feuerung
    • EP2751484A2
    • 2014-07-09
    • EP12766124.7
    • 2012-08-17
    • Doosan Babcock Limited
    • STURGEON, David WilliamHESSELMANN, Gerard John
    • F23C7/00F23D1/00F23K3/02F23L7/00F23C9/00
    • F23L9/00F23C7/002F23C9/003F23D1/00F23D1/005F23K3/02F23K2203/006F23L7/007Y02E20/344
    • The invention relates to a combustion apparatus, in particular to a burner for the combustion of carbonaceous fuel. The combustion apparatus comprises a burner having a burner inlet for receiving a supply of combustible pulverous fuel and a supply of comburant gas and a burner outlet in the vicinity of which combustion of the fuel is supported during use; at least a primary conduit defining a flow channel for conveying a mixture of fuel and comburant gas from the burner inlet to the burner outlet; a fuel feed line defining a flow channel which conveys a pulverous combustible fuel in a dense phase; and a supply conduit fluidly connecting a comburant gas supply to the primary conduit and defining with the primary conduit a primary flow stream; wherein the fuel feed line is provided with a fuel feed outlet into the supply conduit upstream of the burner inlet to supply pulverous combustible fuel in a dense phase; and wherein the primary flow stream is provided with a mixing device downstream of the fluid supply outlet. A method for combusting pulverous combustible fuel in a burner embodying such principles is also described.
    • 本发明涉及一种燃烧装置,特别涉及用于燃烧碳质燃料的燃烧器。 燃烧装置包括燃烧器,燃烧器具有用于接收可燃粉末燃料的供应的燃烧器入口和在使用期间燃料的燃烧附近的燃料气体和燃烧器出口的供应; 至少一个主导管,其限定用于将燃料和燃烧气体的混合物从燃烧器入口输送到燃烧器出口的流动通道; 燃料供给管线,其限定以致密相传送粉状可燃燃料的流路; 以及供应管道,其将烹饪气体供应源流体地连接到所述主管道并且与所述主管道限定初级流动流; 其中所述燃料供给管线在所述燃烧器入口的上游设置有供给管道的燃料供给出口,以供给密相中的粉状可燃燃料; 并且其中所述主流体流在所述流体供应出口的下游设置有混合装置。 还描述了在体现这种原理的燃烧器中燃烧粉状可燃燃料的方法。
    • 52. 发明公开
    • ON-LINE ADJUSTABLE COAL FLOW DISTRIBUTING DEVICE
    • 在线可调煤流量分配装置
    • EP1946005A1
    • 2008-07-23
    • EP06809709.6
    • 2006-10-26
    • Foster Wheeler Energy Corporation
    • GRUSHA, John
    • F23K3/02
    • F23K3/02F23K2203/006F23K2203/105
    • A method of and an apparatus for operating a pulverized coal-fired boiler system, which includes at least one coal pulverizer in flow connection with at least two burners disposed on a boiler enclosure by a coal feed system having a coal pipe junction with a riffle enclosure including a plurality of parallel partition walls forming multiple flow channels from an upstream coal pipe to each of at least two downstream coal pipes and a plurality of individually pivotable vanes upstream of the plurality of partition walls, and controlling the distribution of coal between the downstream pipes by pivoting at least one of the vanes. Preferably a coal flow rate is monitored in the downstream coal pipes and at least one of the vanes is pivoted in response to a measured distribution of the coal flow rate.
    • 一种用于运行粉煤燃烧锅炉系统的方法和设备,其包括至少一个煤粉磨机与至少两个燃烧器流动连接,所述至少两个燃烧器通过具有煤管连接处的煤供给系统布置在锅炉外壳上, 包括多个平行分隔壁,所述平行分隔壁形成从上游煤管到至少两个下游煤管中的每一个的多个流动通道以及在所述多个分隔壁上游的多个单独可枢转叶片,并且控制下游管之间的煤分配 通过枢转至少一个叶片。 优选地,在下游煤管中监测煤流量,并且响应于测量的煤流量分布来枢转至少一个叶片。
    • 58. 发明申请
    • ADJUSTABLE FLOW CONTROL ELEMENTS FOR BALANCING PULVERIZED COAL FLOW AT COAL PIPE SPLITTER JUNCTIONS
    • 用于煤管分流器结的平衡煤粉流量的可调流量控制元件
    • WO01081830A2
    • 2001-11-01
    • PCT/US2001/012842
    • 2001-04-20
    • F23K3/02F24B
    • F23K3/02F23K2203/006F23K2203/105F23K2203/201
    • An adjustable device installed at the inlet of conventional junctions/splitters (116) for on-line control of the distribution of coal among the outlet pipes is herein disclosed. The device includes a plurality of flow control elements (60) each positioned upstream of a plurality of flow channels in the riffler (50) for directing coal flow to the outlet pipes. Each flow control element preferably comprises a rounded convex edge leading to straight tapered sides (Fig. 9). The surfaces of the sides may be roughened or textured (63) for promoting turbulent boundary layers (Fig. 9). In addition, conventional fixed or variable orifices may be used in combination with the flow control elements for balancing primary air flow rates. The device allows fine-adjustment control of coal flow rates when used in combination with the slotted riffler, yet it has negligible effect on the distribution of primary air. The combination of the riffler assembly and the coal flow control elements (60) results in closely balanced coal flow. Balanced coal flow is imperative to the optimization of the operation of pulverized coal boiler systems (i.e. reduced pollutant emissions, improved combustion efficiency).
    • 本文公开了一种可调节装置,其安装在常规接合/分离器(116)的入口处,用于在出口管中煤分配的在线控制。 该装置包括多个流量控制元件(60),每个流量控制元件(60)均位于消音器(50)中的多个流动通道的上游,用于将煤流引导至出口管。 每个流量控制元件优选地包括通向直锥形侧面的圆形凸缘(图9)。 侧面的表面可以被粗糙化或纹理化(63)以促进湍流边界层(图9)。 此外,传统的固定或可变孔可以与流量控制元件结合使用,以平衡一次空气流速。 该设备允许在与开槽式混合机组合使用时对煤流速进行微调控制,但对一次空气的分配影响微乎其微。 烟囱组件和煤流控制元件(60)的组合导致煤流量的平衡。 平衡煤流是煤粉锅炉系统运行优化(即降低污染物排放,提高燃烧效率)的必要条件。