专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20080206693A1 Low NOx burner 有权
标题翻译：低NOx燃烧器
公开(公告)号：US20080206693A1
公开(公告)日：2008-08-28
申请号：US12150885
申请日：2008-04-30
申请人： Vladimir Lifshits , Stephen B. Londerville
发明人： Vladimir Lifshits , Stephen B. Londerville
IPC分类号： F23C9/00
CPC分类号： F23C6/047 , F23C9/006 , F23C2900/09002 , F23D14/64 , F23D2900/00008 , F23D2900/14004
摘要： A low NOx burner for installation on a furnace wall. The burner has an elongated tube connected to a combustion air supply, the furnace side end of which mounts a combustion air spinner that is spaced a substantial distance from the furnace wall. A plurality of typically six elongated air ports extend through the wall from the windbox of the furnace into the combustion chamber and supply most of the required combustion air. Downstream ends of the air ports are spaced from the furnace wall as well as from the spinner, and they are configured to bias the discharged air flow towards the spinner. A plurality of first fuel gas spuds with fuel gas discharge orifices is arranged about the spinner and discharges fuel gas into the combustion chamber downstream of the spinner. A second fuel gas spud is disposed in pockets between adjacent pairs of air ports which are closed against the furnace wall so that no combustion air flows through the pockets. The second gas spuds have fuel discharge orifices at their downstream ends which are relatively close to the furnace wall and upstream of the discharge ends of the air ports. The third gas spuds are placed inside the air ports. During use, furnace gas inside the combustion chamber recirculates to the front wall of the furnace and becomes mixed with fuel gas from the second gas spuds inside the pockets and downstream thereof, which results in a fuel gas/combustion air/furnace gas mixture that is ignited on the downstream side of the spinner.
摘要翻译：用于安装在炉壁上的低的NO x x燃烧器。燃烧器具有连接到燃烧空气源的细长管，燃烧空气源的炉侧端安装有与炉壁间隔相当距离的燃烧空气旋转器。多个典型的六个细长的空气端口从炉的风箱延伸穿过壁进入燃烧室，并且供应大部分所需的燃烧空气。空气端口的下游端部与炉壁以及旋转器间隔开，并且它们被构造成朝着旋转器偏置排出的空气流。具有燃料气体排放孔的多个第一燃料气体料斗布置在旋转器周围，并将燃料气体排放到旋转器下游的燃烧室中。第二燃料气体突出部设置在相邻的空气端口对之间的凹穴中，所述空气端口相对于炉壁被封闭，使得没有燃烧空气流过袋。第二气体喷嘴在其下游端具有相对靠近炉壁并且在空气端口的排放端的上游的燃料排放孔。第三个气体入口放置在空气口内。在使用期间，燃烧室内的炉内气体再循环到炉的前壁，并与来自腔内和下游的第二气体柱塞的燃料气体混合，这导致燃料气体/燃烧空气/炉气体混合物在旋转器的下游侧点燃。

2. 发明授权

US08794960B2 Low NOx burner 有权
标题翻译：低NOx燃烧器
公开(公告)号：US08794960B2
公开(公告)日：2014-08-05
申请号：US12150885
申请日：2008-04-30
申请人： Vladimir Lifshits , Stephen B. Londerville
发明人： Vladimir Lifshits , Stephen B. Londerville
IPC分类号： F23Q9/00
CPC分类号： F23C6/047 , F23C9/006 , F23C2900/09002 , F23D14/64 , F23D2900/00008 , F23D2900/14004
摘要： A low NOx burner for installation on a furnace wall has an elongated tube connected to a combustion air supply, the furnace side end of which mounts a combustion air spinner that is spaced from the furnace wall. A plurality of air ports extend through the wall into the combustion chamber. Downstream ends of the air ports are spaced from the furnace wall as well as from the spinner, and they are configured to bias the discharged air flow towards the spinner. A plurality of first fuel gas spuds with fuel gas discharge orifices arranged about the spinner and discharges fuel gas into the combustion chamber downstream of the spinner. A second fuel gas spud is disposed in pockets between adjacent pairs of air ports which are closed against the furnace wall so that no combustion air flows through the pockets. The third gas spuds are placed inside the air ports.
摘要翻译：用于安装在炉壁上的低NOx燃烧器具有连接到燃烧空气源的细长管，燃烧空气源的炉侧端安装有与炉壁间隔开的燃烧空气旋转器。多个空气端口延伸穿过壁进入燃烧室。空气端口的下游端部与炉壁以及旋转器间隔开，并且它们被构造成朝着旋转器偏置排出的空气流。多个第一燃料气体入口具有围绕旋转器布置的燃料气体排出孔，并将燃料气体排放到旋转器下游的燃烧室中。第二燃料气体突出部设置在相邻的空气端口对之间的凹穴中，所述空气端口相对于炉壁被封闭，使得没有燃烧空气流过袋。第三个气体入口放置在空气口内。

3. 发明申请

US20090068601A1 Burner Pilot With Virtual Spinner 审中-公开
标题翻译：燃烧器飞行员与虚拟旋转器
公开(公告)号：US20090068601A1
公开(公告)日：2009-03-12
申请号：US12203419
申请日：2008-09-03
申请人： Stephen B. Londerville , Vladimir Lifshits , Pierre Begin
发明人： Stephen B. Londerville , Vladimir Lifshits , Pierre Begin
IPC分类号： F23Q9/00 , F23D14/48 , F23D14/22
CPC分类号： F23D1/00 , F23D2207/00 , F23D2900/00014
摘要： A method and apparatus for preheating a furnace during a warm-up phase of furnace operation. The furnace has main burners with a tubular fuel supply surrounded by a main combustion air duct defining an annular space between the supply and the duct that extends in an axial direction of the main burner. A pilot nozzle in the annular space extends in an axial direction of the burner towards an interior of the furnace and discharges readily ignitable fluid fuel jets through orifices in the nozzle toward the interior of the furnace. Combustion air from the duct is directed past the nozzle and is mixed with the fuel discharged from the orifices to form an ignitable mixture that is ignited to form the furnace heating pilot flame downstream of the nozzle. The flame is stabilized and anchored to the pilot nozzle by recirculating portions of the flame and its constituents from the furnace interior back towards the nozzle by protecting the air passing through the primary ignition zone from being directly affected by air flowing through the main combustion air conduit, diverging the fuel jets relative to the axial direction by an angle between about 20° to 80°, and giving the fuel jets a tangential directional component relative to the axial direction to spin the flame about the axis of the pilot.
摘要翻译：一种在炉操作预热阶段预热炉的方法和装置。炉具有主燃烧器，其具有由主燃烧空气管道包围的管状燃料供应源，该主燃烧空气管道限定在主燃烧器的轴向方向上延伸的供应管和管道之间的环形空间。环形空间中的先导喷嘴沿燃烧器的轴向方向延伸到炉的内部，并且通过喷嘴中的孔朝向炉内部排放容易点燃的流体燃料喷嘴。来自管道的燃烧空气被引导通过喷嘴并与从孔排出的燃料混合以形成可点燃的混合物，其被点燃以在喷嘴下游形成炉加热引燃火焰。通过使通过主要点燃区域的空气直接受到流过主燃烧空气管道的空气的影响，将火焰及其组分的部分从炉内部再循环回喷嘴，使火焰稳定并锚定到引燃喷嘴使燃料喷嘴相对于轴向方向扩散约20°至80°之间的角度，并且使燃料喷射相对于轴向方向的切向方向分量以围绕飞行员的轴旋转火焰。

4. 发明申请

US20080293002A1 Energy efficient low NOx burner and method of operating same 有权
标题翻译：节能低NOx燃烧器及其运行方法
公开(公告)号：US20080293002A1
公开(公告)日：2008-11-27
申请号：US12220413
申请日：2008-07-23
申请人： Vladimir Lifshits
发明人： Vladimir Lifshits
IPC分类号： F23C9/00 , F23D14/20 , F23C5/00
CPC分类号： F23C6/047 , F23C9/006 , F23C2900/09002 , F23D14/64 , F23D2900/00008
摘要： A burner assembly that produces very low NOx emissions includes a plurality of furnace gas openings for receiving a portion of furnace gasses back into a combustion cylinder. The burner assembly includes the combustion cylinder, a plurality of combustion air inlet conduits that extend into the cylinder and a plurality of fuel gas discharge nozzles that also extend into the cylinder. The burner assembly is mounted within a combustion chamber of a furnace, wherein the walls of the combustion chamber are provided with or are made up of heat transfer pipes. Thus, in operation, furnace gasses exit the combustion cylinder and, due to combined aspirating action created by air jets as they exit the air conduits and fuel gas jets discharging from the fuel gas discharge nozzles inside the combustion cylinder and a pressure differential between the combustion cylinder and the combustion chamber, a portion of the furnace gasses flow from the outlet of the combustion cylinder and past the heat transfer pipes toward the proximal or upstream end of the combustion cylinder. Passage of the furnace gasses past the heat transfer pipes cools the furnace gasses and the furnace gasses then flow through the furnace gas openings and mix with the combustion air and fuel gas to provide a lower NOx emission in an energy-efficient manner.
摘要翻译：产生非常低的NOx排放的燃烧器组件包括多个炉气开口，用于将一部分炉内气体接收回燃烧气缸。燃烧器组件包括燃烧气缸，延伸到气缸中的多个燃烧空气入口导管和还延伸到汽缸中的多个燃料气体排出喷嘴。燃烧器组件安装在炉的燃烧室中，其中燃烧室的壁设置有或由传热管构成。因此，在操作中，炉内气体离开燃烧气缸，并且由于当空气射流离开空气管道和从燃烧气缸内部的燃料气体排放喷嘴排出的燃料气体喷射和燃烧气体之间的压力差时由空气射流产生的组合吸气作用气缸和燃烧室，一部分炉气从燃烧气缸的出口流出，并经过传热管朝向燃烧气缸的近端或上游端。通过热传输管道的炉内气体冷却炉内的气体，然后将炉内气体流过炉内气体开口，并与燃烧空气和燃料气体混合，以节能的方式提供较低的NOx排放。

5. 发明授权

US07422427B2 Energy efficient low NOx burner and method of operating same 有权
标题翻译：节能低NOx燃烧器及其运行方法
公开(公告)号：US07422427B2
公开(公告)日：2008-09-09
申请号：US11067312
申请日：2005-02-25
申请人： Vladimir Lifshits
发明人： Vladimir Lifshits
IPC分类号： F23M3/00 , F23C9/00
CPC分类号： F23C6/047 , F23C9/006 , F23C2900/09002 , F23D14/64 , F23D2900/00008
摘要： A burner for installation in a furnace having a combustion chamber defined by at least a furnace front wall, two side walls, a top wall and a bottom wall as well as heat transfer pipes through which a heat transfer medium flows and which are arranged on at least one of the top, bottom and side walls. A burner assembly is mounted to the furnace front wall and has a tubular member with an open distal end that is located inside the combustion chamber. The other end of the tubular member is attached to the furnace front wall. Several combustion air ports extend into the tubular member from the other, proximal end thereof and are coupled to a source of combustion air. Several fuel gas discharge nozzles also extend into the tubular member from the other end thereof and are coupled to a fuel source. Furnace gas openings formed in the tubular member are spaced apart from the distal end, are arranged about the tubular member's periphery, and are located relative to the combustion chamber so that furnace gases circulate past some of the heat transfer pipes before they reach the furnace gas openings to thereby form a mixture of combustion air, fuel gas and furnace gas. A spinner at the distal end of the tubular member creates a recirculation zone for the mixture downstream of the spinner and the tubular member.
摘要翻译：一种用于安装在炉中的燃烧器，其具有至少由炉前壁，两个侧壁，顶壁和底壁限定的燃烧室以及传热介质流过的传热管，并且布置在顶部，底部和侧壁中至少有一个。燃烧器组件安装在炉前壁上，并具有管状构件，其具有位于燃烧室内部的敞开的远端。管状构件的另一端附接到炉前壁。几个燃烧空气端口从其另一个近端延伸到管状构件中并且联接到燃烧空气源。几个燃料气体排出喷嘴也从其另一端延伸到管状构件中并且联接到燃料源。形成在管状构件中的炉气开口与远端隔开，围绕管状构件的周边布置，并且相对于燃烧室定位，使得炉气在它们到达炉气之前循环通过一些传热管从而形成燃烧空气，燃料气体和炉气体的混合物。在管状构件的远端处的旋转器在旋转器和管状构件的下游产生用于混合物的再循环区域。

6. 发明申请

US20050271990A1 Energy efficient low NOx burner and method of operating same 有权
标题翻译：节能低NOx燃烧器及其运行方法
公开(公告)号：US20050271990A1
公开(公告)日：2005-12-08
申请号：US11067312
申请日：2005-02-25
申请人： Vladimir Lifshits
发明人： Vladimir Lifshits
IPC分类号： F23C6/04 , F23C9/00 , F23D14/64 , F23M3/00
CPC分类号： F23C6/047 , F23C9/006 , F23C2900/09002 , F23D14/64 , F23D2900/00008
摘要： A burner assembly that produces very low NOx emissions includes a plurality of furnace gas openings for receiving a portion of furnace gasses back into a combustion cylinder. The burner assembly includes the combustion cylinder, a plurality of combustion air inlet conduits that extend into the cylinder and a plurality of fuel gas discharge nozzles that also extend into the cylinder. The burner assembly is mounted within a combustion chamber of a furnace, wherein the walls of the combustion chamber are provided with or are made up of heat transfer pipes. Thus, in operation, furnace gasses exit the combustion cylinder and, due to combined aspirating action created by air jets as they exit the air conduits and fuel gas jets discharging from the fuel gas discharge nozzles inside the combustion cylinder and a pressure differential between the combustion cylinder and the combustion chamber, a portion of the furnace gasses flow from the outlet of the combustion cylinder and past the heat transfer pipes toward the proximal or upstream end of the combustion cylinder. Passage of the furnace gasses past the heat transfer pipes cools the furnace gasses and the furnace gasses then flow through the furnace gas openings and mix with the combustion air and fuel gas to provide a lower NOx emission in an energy-efficient manner.
摘要翻译：产生非常低的NO x x排放物的燃烧器组件包括多个炉气开口，用于将一部分炉气接收回燃烧气缸。燃烧器组件包括燃烧气缸，延伸到气缸中的多个燃烧空气入口导管和还延伸到汽缸中的多个燃料气体排出喷嘴。燃烧器组件安装在炉的燃烧室中，其中燃烧室的壁设置有或由传热管构成。因此，在操作中，炉内气体离开燃烧气缸，并且由于当空气射流离开空气管道和从燃烧气缸内部的燃料气体排放喷嘴排出的燃料气体喷射和燃烧气体之间的压力差时由空气射流产生的组合吸气作用气缸和燃烧室，一部分炉气从燃烧气缸的出口流出，并经过传热管朝向燃烧气缸的近端或上游端。通过传热管道的通道冷却炉内气体，然后将炉内气体流过炉内气体开口，并与燃烧空气和燃料气体混合，以提供较低的NO x 节能的方式。

7. 发明授权

US6027330A Low NO.sub.x fuel gas burner 失效
标题翻译：低NOx燃气燃烧器
公开(公告)号：US6027330A
公开(公告)日：2000-02-22
申请号：US978704
申请日：1997-11-26
申请人： Vladimir Lifshits
发明人： Vladimir Lifshits
IPC分类号： F23C7/00 , F23C9/08 , F23D14/02 , F23D17/00 , F23C5/00 , B05B7/04 , F23B5/02 , F23L1/00
CPC分类号： F23C9/08 , F23C7/004 , F23D14/02 , F23D17/002 , F23C2201/20 , F23C2202/30 , F23D2900/00008
摘要： An industrial fuel gas burner fired with a mixture of combustion air having up to about 45% flue gas which flows in a downstream direction along an annular combustion air conduit disposed about an axially movable core of the burner that terminates in an end cone that faces the combustion chamber of the furnace. Within the conduit and upstream of a discharge end thereof is a fuel gas discharge header formed by concentric, radially inner and outer tubular ring-shaped fuel gas headers which are concentrically disposed about an axis of the burner and in fluid communication with a source of pressurized fuel gas. The headers have a multiplicity of fuel gas discharge orifices which form three-dimensionally oriented gas streams directed into the combustion air-flue gas flow in the annular conduit. The orifices have a diameter of at least about 0.1 inch. The fuel gas has a pressure so that the fuel gas streams have sufficient energy to flow portions of the gas to a vicinity of the annular conduit walls to intimately mix the fuel gas with the combustion air and form a substantially uniform combustion air-flue gas-fuel gas mixture at a discharge end of the annular conduit. The end cone periphery mounts a number of blades that create enhanced, non-repetitively irregular turbulence in the flow discharged from the conduit, which causes irregular turbulence along the boundary between the flow and combustion gas which recirculate in the wake of the cone. The core of the burner including the blades can slide along a guide so that the discharge area between the throat and the cone can be varied with the firing rate, and the blades can be moved away from the conduit when the burner operates at full load.
摘要翻译：一种工业燃料燃烧器燃烧器，其燃烧空气具有高达约45％的烟道气，其燃烧空气沿着下游方向沿着环形燃烧空气导管流动，该环形燃烧空气导管设置在燃烧器的轴向可移动的铁心周围，终止在面向炉的燃烧室。在导管内和其排放端的上游是由同心的径向内部和外部管状环形燃料气体集管形成的燃料气体排出集管，其同心地设置在燃烧器的轴线周围并且与加压的源燃气。集管具有多个燃料气体排出孔，其形成引导到环形管道中的燃烧空气 - 烟道气流中的三维定向气流。孔口具有至少约0.1英寸的直径。燃料气体具有压力，使得燃料气体流具有足够的能量以将气体的一部分流动到环形导管壁附近，以使燃料气体与燃烧空气紧密地混合，并形成基本均匀的燃烧空气 - 烟道气体 - 在环形导管的排放端的燃料气体混合物。端锥周边安装多个叶片，其在从导管排出的流中产生增强的非重复不规则的湍流，这导致沿着在锥体之后再循环的流动和燃烧气体之间的边界的不规则湍流。包括叶片的燃烧器的核心可以沿着引导件滑动，使得喉部和锥体之间的排放区域可以随着燃烧速率而变化，并且当燃烧器在满负载下运行时，叶片可以从管道移开。

8. 发明授权

US06453852B1 Temperature stratified superheater and duct burner 失效
标题翻译：温度分层过热器和管道燃烧器
公开(公告)号：US06453852B1
公开(公告)日：2002-09-24
申请号：US09602600
申请日：2000-06-22
申请人： Vladimir Lifshits , Martin Joseph Fry
发明人： Vladimir Lifshits , Martin Joseph Fry
IPC分类号： F22D108
CPC分类号： F22B1/1861 , F22B1/1815
摘要： A heat recovery system includes an upstream superheater section and a duct burner arranged to provide improved performance. The upstream superheater section and duct burner are arranged to reduce the negative effects of heat extraction by the upstream superheater section on the duct burner operation. The arrangement provides a downstream flow from the upstream SH section that is temperature stratified and positions the duct burner elements in the areas of maximum temperature. The tubes of the upstream superheater section and the duct burner elements are arranged in a variety of ways to provide temperature stratification, for example, in the horizontal or vertical directions.
摘要翻译：热回收系统包括上游过热器部分和管道燃烧器，其布置成提供改进的性能。上游过热器部分和管道燃烧器布置成减少上游过热器部分在管道燃烧器操作上的热提取的负面影响。该装置提供来自上游SH部分的下游流动，该部分是温度分层的，并且将管道燃烧器元件定位在最高温度的区域。上游过热器部分的管和管道燃烧器元件以各种方式布置以提供例如在水平或垂直方向上的温度分层。

9. 发明授权

US6062848A Vibration-resistant low NO.sub.x burner 失效
标题翻译：耐低温NOx燃烧器
公开(公告)号：US6062848A
公开(公告)日：2000-05-16
申请号：US87426
申请日：1998-05-29
申请人： Vladimir Lifshits
发明人： Vladimir Lifshits
IPC分类号： F23C6/04 , F23C9/00 , F23D14/02 , F23Q9/00
CPC分类号： F23C9/006 , F23C6/045 , F23D14/02 , F23C2201/20 , F23C2201/30 , F23C2202/40 , F23D2203/102 , F23D2209/20 , F23D2210/00
摘要： A low NO.sub.x burner includes a refractory lined plate with a refractory side facing a combustion chamber. A multiplicity of combustion air passages extend through the plate toward the combustion chamber. A multiplicity of spaced-apart primary fuel nozzles each have a discharge opening being surrounded by one of the combustion air passages for directing fuel therethrough to mix with combustion air passing through the air passages. A multiplicity of anchor fuel nozzles project through the plate for directing fuel into the combustion chamber. The anchor fuel nozzles are spaced apart from each other and from the combustion air passages. The flows of fuel and combustion air through the primary and anchor nozzles and the air passages into the combustion chamber are controlled to generate a flame. In applications that require low excess air, such as boiler applications, the burner is modified by providing a secondary fuel and flue gas injection assembly to form a two-stage burner. In the preferred embodiment, the secondary injection assembly includes a plurality of discrete fuel and flue gas injection nozzles arranged around the primary and anchor fuel nozzles and combustion air passages. By varying the percentage and actual pattern of secondary fuel injection and by varying the configuration of the array of primary and anchor nozzles and the spacing between the nozzles, the flame shape may be easily tailored to the size and shape of practically any furnace. The flame can thus be optimized to achieve lower NO.sub.x and improved efficiency.
摘要翻译：低NOx燃烧器包括耐火材料衬板，其耐火面朝向燃烧室。多个燃烧空气通道延伸穿过板朝向燃烧室。多个间隔开的主燃料喷嘴各自具有排放口，其中的一个燃烧空气通道被围绕，用于引导燃料通过其中以与通过空气通道的燃烧空气混合。多个锚固燃料喷嘴突出穿过板，用于将燃料引导到燃烧室中。锚固燃料喷嘴彼此间隔开并与燃烧空气通道间隔开。通过主喷嘴和锚定喷嘴的燃料和燃烧空气的流动以及进入燃烧室的空气通道被控制以产生火焰。在需要少量过量空气（例如锅炉应用）的应用中，通过提供二次燃料和烟道气注入组件来改变燃烧器以形成两级燃烧器。在优选实施例中，二次注射组件包括多个分立的燃料和烟气注入喷嘴，其布置在主燃料喷嘴和燃烧空气通道周围。通过改变二次燃料喷射的百分比和实际模式，并且通过改变主喷嘴和锚喷嘴阵列的配置以及喷嘴之间的间距，火焰形状可以容易地适应于几乎任何炉子的尺寸和形状。因此可以优化火焰以实现较低的NOx和提高的效率。

10. 发明授权

US5224539A Cooling system for air heaters and the like 失效
标题翻译：空气加热器等的冷却系统
公开(公告)号：US5224539A
公开(公告)日：1993-07-06
申请号：US715167
申请日：1991-06-14
申请人： Vladimir Lifshits
发明人： Vladimir Lifshits
IPC分类号： F27D1/12
CPC分类号： F27D1/12 , Y10S165/904
摘要： A cooling system including a cooling duct adjacent to the hot air duct of an air heater. The cooling duct includes a first wall and a second wall spaced from the first wall such that a passageway is formed therebetween. A wire mesh sheet is arranged in the duct passageway. The wire mesh sheet comprises a plurality of layers of wire mesh and has an undulate configuration which together with its density prevents substantial heat radiation from the first wall of the cooling duct to the second wall without significantly impeding airflow through the cooling duct. Cooling air introduced into the cooling duct flows through the duct, removes heat, radiated by the first wall and absorbed by the wire mesh sheet, and carries that heat away from the duct as it exits through the outlet opening. In this way, the system cools the first wall and prevents any significant heat transfer to the second wall of the cooling duct and elements in the vicinity thereof.
摘要翻译：一种冷却系统，包括与空气加热器的热空气管道相邻的冷却管道。冷却管道包括与第一壁间隔开的第一壁和第二壁，使得在它们之间形成通道。丝网片布置在管道通道中。金属丝网片包括多层金属丝网，并具有波纹形状，其结合密度防止从冷却管道的第一壁到第二壁的实质性热辐射，而不会明显阻碍通过冷却管道的气流。引入到冷却管道中的冷却空气流过管道，消除由第一壁辐射并被丝网片吸收的热量，并且当通过出口开口离开管道时将热量从管道传送出去。以这种方式，系统冷却第一壁并且防止任何显着的热传递到冷却管道的第二壁和其附近的元件。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式