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公开(公告)号：US4737100A
公开(公告)日：1988-04-12
申请号：US857938
申请日：1986-04-30
CPC分类号： F23D14/76 , F23D14/20 , F23D14/34 , F23D14/70 , F23D2900/21003
摘要： A duct burner apparatus and method for burning a gaseous fuel in the presence of a flowing oxygen-containing gas stream is provided. The apparatus comprises fuel gas supply means positioned in the path of the oxygen-containing gas stream and at least one elongated baffle means spaced from the conduit means on the downstream side thereof. The baffle means includes an inner wall portion and diverging outer wing portions and defines an ignition zone which is shielded from the conduit means. Spacer means for supporting the baffle means are attached thereto and to the conduit means, and fuel gas nozzle means are removably connected to the conduit means which extend to the baffle means for introducing fuel gas into the ignition zone and downstream thereof.
摘要翻译： 提供了一种用于在存在流动的含氧气体流的情况下燃烧气体燃料的管道燃烧器装置和方法。 该装置包括位于含氧气体流的路径中的燃料气体供应装置和在其下游侧与导管装置隔开的至少一个细长挡板装置。 挡板装置包括内壁部分和发散的外翼部分，并且限定了与导管装置屏蔽的点火区域。 用于支撑挡板装置的间隔装置附接到导管装置，并且燃料气体喷嘴装置可移除地连接到导管装置，导管装置延伸到挡板装置，用于将燃料气体引入点火区域及其下游。
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2.发明授权
公开(公告)号：US4245980A
公开(公告)日：1981-01-20
申请号：US916581
申请日：1978-06-19
CPC分类号： F23C1/08 , F23C6/00 , F23C7/02 , F23D17/002 , F23L7/005
摘要： A burner for reduced NOx emission and also for the control of the shape of the flame as regards its length and spread, comprises a first combustion zone, which is contained within a cylindrical chamber lined with refractory material. A burner tube is inserted through an opening in the upstream end of the first combustion zone, the burner including means for providing and burning liquid and gaseous fuel. A first air plenum is provided upstream of the first combustion zone with means for supplying less-than-stoichiometric combustion air in a tangential swirling manner, prior to entering the first combustion zone. A second air plenum is provided coaxial with and surrounding the first combustion zone and tertiary air is supplied tangentially to this air plenum so that the tertiary air will flow in a helical swirling motion along the outside of the first combustion chamber, around the downstream end of the combustion chamber and will meet and mix with the hot products of combustion from the first combustion chamber. Control of the shape of the flame is provided by controlling the relative directions of tangential flow of air in the two plena.
摘要翻译： 用于减少NOx排放的燃烧器以及用于控制火焰形状的长度和扩展的燃烧器包括第一燃烧区，其包含在衬有耐火材料的圆筒形室内。 燃烧器管插入通过第一燃烧区的上游端的开口，燃烧器包括用于提供和燃烧液体和气体燃料的装置。 在第一燃烧区域的上游设置有第一空气增压室，其具有用于在进入第一燃烧区域之前以切向旋转方式供应小于化学计量的燃烧空气的装置。 第二空气增压室设置为与第一燃烧区同轴并围绕第一燃烧区，并且三次空气与该空气增压室相切地供应，使得三次空气沿着第一燃烧室的外部沿着第一燃烧室的外部沿着螺旋旋转运动流动， 燃烧室将与来自第一燃烧室的热燃烧产物相遇并混合。 通过控制两个斑块中空气的切向流动的相对方向来提供对火焰形状的控制。
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公开(公告)号：US4105395A
公开(公告)日：1978-08-08
申请号：US743097
申请日：1976-11-19
CPC分类号： F23C9/006 , F23D11/002
摘要： A regenerative tile structure for fluid fuel burners having a zirconium oxide coated metal flange shaped member providing a central orifice for producing a significant and very rapid increase in flame temperature by guided recirculation of hot flame gases.
摘要翻译： 一种用于流体燃料燃烧器的再生砖结构，其具有氧化锆涂覆的金属凸缘成形构件，其提供中心孔口，用于通过热焰气体的引导再循环产生火焰温度的显着且非常快速的增加。
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公开(公告)号：US4383649A
公开(公告)日：1983-05-17
申请号：US169993
申请日：1980-07-18
CPC分类号： F23D11/102
摘要： An improved fuel oil atomizer which comprises a burner tube through which fuel oil is supplied under selected pressure, and a coaxial surrounding steam tube providing an annular space therebetween, the flow of steam being under greater pressure than the oil pressure. A burner head is joined to the burner oil tube through an orifice of selected diameter. The burner head has a long axial bore of constant selected diameter, which leads to the burner tip, which has a plurality of tip ports. There are a number of transverse ports between the annular steam path and the central bore, so that the steam can flow under pressure into the central bore of the burner head to mix thoroughly with the pressurized oil flowing from the orifice. Two factors are important in the construction of the burner head, namely that the central bore must be of constant diameter from the point where the steam and oil mix, outwardly toward the burner tip ports. Secondly, the total cross-sectional area of the tip ports must be less than the cross-sectional area of the central bore.
摘要翻译： 一种改进的燃料油雾化器，其包括在选定压力下供应燃料油的燃烧器管和在其间提供环形空间的同轴的周边蒸汽管，蒸汽流在比油压更大的压力下。 燃烧器头通过选定直径的孔连接到燃烧器油管。 燃烧头具有恒定选定直径的长轴向孔，其通向具有多个尖端口的燃烧器尖端。 在环形蒸汽路径和中心孔之间存在多个横向端口，使得蒸汽可以在压力下流入燃烧器头部的中心孔，以与从孔口流出的加压油充分混合。 在燃烧器头部的结构中，两个因素是重要的，即中心孔必须具有恒定的直径，从蒸汽和油混合到外部朝向燃烧器尖端口。 其次，尖端口的总截面积必须小于中心孔的横截面面积。
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公开(公告)号：US3958922A
公开(公告)日：1976-05-25
申请号：US507692
申请日：1974-09-20
CPC分类号： F23D11/104 , F02C6/18 , F23D23/00 , F23M11/045 , F23D2900/21003
摘要： A duct burner primarily for use in raising the temperature of turbine exhaust gas (TEG) to a usable temperature to operate a steam generator or the like. The burner comprises an array of downstream facing burners capable of burning low grade fuel oil in a low oxygen environment, each burner being provided with gas burning backup and individual flame scan capabilities.
摘要翻译： 主要用于将涡轮废气（TEG）的温度提高到可用温度以操作蒸汽发生器等的管道燃烧器。 燃烧器包括能够在低氧环境中燃烧低级燃料油的下游侧燃烧器阵列，每个燃烧器具有气体燃烧备份和单独的火焰扫描能力。
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公开(公告)号：US3940234A
公开(公告)日：1976-02-24
申请号：US473356
申请日：1974-05-28
CPC分类号： F23D14/02 , F23D14/64 , F23D2210/00 , F23D2900/00011
摘要： A noiseless premix burner comprising a cylindrical housing which is attached to the outer covering of the furnace wall, and closed at its opposite end by a closure plate which supports a concentric burner tube which extends from the closure plate through an opening in the furnace wall to the interior of the furnace. A gas fuel line is inserted along the axis of the burner tube. Pressurized fuel gas flows through an orifice in the fuel line in an expanding flow. The proximal end of the burner tube has a venturi type throat construction. The annular space between the burner tube and the cylindrical housing comprises two plenums, one adjacent the outer wall of the furnace supplying secondary air, which passes into the furnace through a narrow annular gap between the burner tube and the furnace lining. The second plenum provides primary air to the burner tube at the position of the fuel nozzle, where it mixes turbulently with the inflowing high velocity gas stream, to provide a fuel-air mixture which passes down the burner tube. The axial outlet of the burner tube inside the furnace is closed and there are a plurality of longitudinal slots spaced circumferentially around the burner tube through which the gas-air mixture moves radially into the furnace impinging on tile which surrounds the burner tube.
摘要翻译： 一种无噪声的预混燃烧器，其包括圆柱形壳体，其连接到炉壁的外覆盖件，并且在其相对端处由封闭板封闭，该封闭板支撑同心燃烧器管，其从封闭板延伸通过炉壁中的开口到 炉内部。 气体燃料管线沿燃烧器管的轴线插入。 加压燃料气体以膨胀的流动流过燃料管路中的孔口。 燃烧器管的近端具有文丘里型喉部结构。 燃烧器管和圆柱形壳体之间的环形空间包括两个增压室，一个邻近提供二次空气的炉的外壁，其通过燃烧器管和炉衬之间的窄的环形间隙进入炉中。 第二增压室在燃料喷嘴的位置向燃烧器管提供初级空气，在那里它与流入的高速气流混合地混合，以提供通过燃烧器管的燃料 - 空气混合物。 炉内的燃烧器管的轴向出口是封闭的，并且存在多个沿燃烧器管周向间隔开的纵向狭槽，气体 - 空气混合物通过该纵向狭缝径向进入撞击围绕燃烧器管的瓦片上的炉中。
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公开(公告)号：US4347052A
公开(公告)日：1982-08-31
申请号：US26325
申请日：1979-04-02
CPC分类号： F23C6/047 , F23C7/008 , F23D17/002 , F23L7/002 , F23C2201/20 , F23C2201/30
摘要： A fluid fuel burner system for minimum production of NOX under varying rates of fuel firing and varying rates of combustion air or oxidant supply, which comprises a fuel burner including means for burning liquid and gaseous fuel. Liquid fuels are burned in an axial burner tube, and the gaseous fuels are burned in a plurality of gas burner tubes located in a circle coaxial with the liquid burner. A first air or oxidant plenum supplies primary-plus-secondary air or oxidant, the primary air or oxidant going to the liquid burner and the secondary air or oxidant going to the gas burner. The total of primary plus secondary is less than stoichiometric flow so that the combustion of the fuel in a first combustion chamber provides a reducing atmosphere to preclude the formation of NOX. Means are provided for independently controlling the primary air or oxidant flow compared to the secondary air or oxidant flow, or vice versa. A second air or oxidant plenum provides tertiary air or oxidant to a second combustion space downstream of the first combustion chamber. Control means provide independent control of the primary-plus-secondary air or oxidant flow to the first plenum as a selected ratio to the tertiary air or oxidant, that flows to the second plenum.
摘要翻译： 一种流体燃料燃烧器系统，用于在不同的燃料燃烧速率和不同的燃烧空气或氧化剂供应速率下最小生产NOX，其包括燃料燃烧器，其包括用于燃烧液体和气体燃料的装置。 液体燃料在轴向燃烧器管中燃烧，并且气体燃料在位于与液体燃烧器同轴的圆的多个气体燃烧器管中燃烧。 第一空气或氧化剂气室供应初级加二次空气或氧化剂，一次空气或氧化剂进入液体燃烧器，二次空气或氧化剂进入气体燃烧器。 初级加二级的总和小于化学计量流，使燃料在第一燃烧室中的燃烧提供还原气氛以排除NOX的形成。 提供了与二次空气或氧化剂流相比独立地控制一次空气或氧化剂流量的装置，反之亦然。 第二空气或氧化剂气室将第三空气或氧化剂提供给第一燃烧室下游的第二燃烧空间。 控制装置提供对第一增压室的主加二次空气或氧化剂流的独立控制，作为流向第二增压室的三级空气或氧化剂的选定比例。
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公开(公告)号：US4237858A
公开(公告)日：1980-12-09
申请号：US869712
申请日：1978-01-16
CPC分类号： F23D14/20 , F23C3/004 , F23D2900/21003
摘要： A gas burner system for providing a thin, flat flame for use in a long narrow combustion space, has a first air supply plenum which has a long narrow rectangular cross-section, which is placed above a second plenum or combustion chamber of substantially the same cross-section. At the junction between the first and second plena there are longitudinal projections inwardly from both long walls of the second plenum, forming a long narrow rectangular inlet to the second plenum. A burner assembly comprising an elongated flattened pipe having a plurality of short air baffles welded on each side is supported in this narrow inlet to the second plenum and substantially in the center thereof. The overall width of the burner assembly is less than that of the inlet so that there are two longitudinal gaps between the burner assembly and the projections for the passage of combustion air. There are two sets of ports in the lower edge of the flattened pipe. A first set provides downstreamwardly and outwardly projecting ports for the passage of the major gas flow. A second set of smaller gas ports are drilled substantially laterally to the vertical, and the gas therefrom flows into the space behind the air baffles where a stable, sheltered flame can be provided, for continuous ignition of the major flow of gas issuing at high velocity from the first set of ports, and turbulently mixing with the air flow downwardly through the gaps. The walls of the second plenum and projections can be of conventional refractory material, or they can be of metal which is water cooled.
摘要翻译： 用于提供用于长狭窄燃烧空间的薄平坦火焰的气体燃烧器系统具有第一空气供应气室，其具有长的窄的矩形横截面，该第一空气供应气室被放置在基本相同的第二增压室或燃烧室的上方 横截面。 在第一和第二皮层之间的连接处，从第二增压室的两个长壁向内突出有纵向突起，形成到第二增压室的长窄的矩形入口。 包括细长扁平管的燃烧器组件，其具有焊接在每一侧上的多个短空气挡板，在该窄入口处被支撑到第二增压室并且基本上在其中心。 燃烧器组件的总宽度小于入口的宽度，使得在燃烧器组件和用于燃烧空气通过的突起之间存在两个纵向间隙。 在扁平管的下边缘有两组端口。 第一组提供用于主要气流通过的向下和向外突出的端口。 第二组较小的气体端口基本上沿垂直方向钻孔，并且其中的气体流入空气挡板后面的空间，在该空间中可以提供稳定的遮蔽的火焰，以连续点燃高速气体的主要气流 从第一组端口，并与空气湍流混合，向下流过间隙。 第二增压室的壁和突起可以是常规耐火材料，或者它们可以是水冷却的金属。
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公开(公告)号：US4152108A
公开(公告)日：1979-05-01
申请号：US816189
申请日：1977-07-15
IPC分类号： F23D14/22 , F23C7/02 , F23C99/00 , F23D11/38 , F23D11/40 , F23D14/64 , F23D14/70 , F23D17/00 , F23L7/00
摘要： Apparatus for burning gaseous and liquid fuels in a furnace, to retard formation of NO.sub.x, comprising a fuel tube of selected length and diameter, closed at the end which is inserted into a combustion zone. There are a plurality of ports drilled in the closed end of the fuel tube, the axes of which lie on a conical surface coaxial with the fuel tube. The fuel tube is inserted coaxially into a burner tube of selected larger diameter, and the distant ends are substantially coplanar. A plurality of jets of low pressure steam are injected through a plurality of ports into the annular space between the fuel tube and the burner tube at the outer end of the burner tube. The steam jets flowing through the ports induce a flow of primary combustion air, which mixes with the steam and flows down the annular space to mix with the high velocity jets of fuel as they emerge from the ports on the fuel tube. The fuel, air, and steam mix together prior to entering the combustion reaction zone.
摘要翻译： 用于在炉中燃烧气体和液体燃料以阻止形成NOx的装置，其包括选定长度和直径的燃料管，其在插入燃烧区的端部处封闭。 在燃料管的封闭端处钻有多个端口，其轴线位于与燃料管同轴的锥形表面上。 燃料管同轴地插入到选定的较大直径的燃烧器管中，并且远端基本上共面。 多个低压蒸汽喷射通过多个端口喷射到燃烧器管的外端处的燃料管和燃烧器管之间的环形空间中。 流过端口的蒸汽喷嘴引起初级燃烧空气的流动，其与蒸汽混合并沿着环形空间流动，以与燃料的高速射流混合，从燃料管上的端口出来。 燃料，空气和蒸汽在进入燃烧反应区之前混合在一起。
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公开(公告)号：US4281983A
公开(公告)日：1981-08-04
申请号：US16210
申请日：1979-04-06
IPC分类号： F23D14/02 , F23D14/08 , F23D14/62 , F23D14/64 , F23D17/00 , F23M5/02 , F23C5/08 , F23C5/06 , F23C7/00
CPC分类号： F23D14/085 , F23D14/64 , F23D17/00 , F23M5/025 , F23D2900/14002
摘要： A premix-type gaseous fuel burning system for alternate or simultaneous combustion of low BTU gas and normal BTU gas comprises a gas supply means for providing both high BTU gas and low BTU gas at selected substantial velocity, and a burner tube for receiving said gas, whereby primary air is inducted into the burner tube and mixed with the gas flow. A burner head comprises a long narrow rectangular structure of tapered construction that is inserted upwardly into a corresponding rectangular opening in the floor of the furnace. The opening is also tapered in the same direction as the burner head, but with a selected annular spacing between the walls of the opening and the burner head. Means are provided for vertically adjusting the position of the burner head within the opening. Secondary combustion air is directed through the annular space between the burner head and the opening in the floor of a furnace.
摘要翻译： 用于低BTU气体和正常BTU气体的交替或同时燃烧的预混合型气体燃料燃烧系统包括用于以选定的实质速度提供高BTU气体和低BTU气体的气体供应装置，以及用于接收所述气体的燃烧器管， 从而一次空气被引入燃烧器管并与气流混合。 燃烧器头包括锥形结构的长的窄矩形结构，其向上插入到炉的底板中相应的矩形开口中。 开口也沿着与燃烧器头相同的方向逐渐变细，但在开口的壁和燃烧头之间具有选定的环形间隔。 提供了用于垂直调节燃烧头在开口内的位置的装置。 二次燃烧空气被引导通过燃烧器头部和炉底部的开口之间的环形空间。
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