公开(公告)号：US06386863B1

公开(公告)日：2002-05-14

申请号：US09551066

申请日：2000-04-18

Applicant: Hamid Sarv ,  Jeffrey A. LaRose ,  Albert D. LaRue ,  Peter W. Waanders

Inventor： Hamid Sarv ,  Jeffrey A. LaRose ,  Albert D. LaRue ,  Peter W. Waanders

IPC: F23C700

CPC classification number: F23C7/004 ,  F23D1/00

Abstract: A compound spin vane (CSV) for use in an air passage of a fossil fuel-fired burner. In one embodiment, the CSV is a multi-piece construction of platelike outer and inner vane elements connected to an intermediate platelike rail element. In another embodiment, the CSV includes at least two and possibly three vane portions, rigidly interconnected in spaced lateral relationship with respect to each other. If desired, the vane portions may be simple, curved planar surfaces, and may be arranged with trailing edges arranged at angles with respect to each other. The invention may be employed as a replacement for flat spin vanes found in secondary air passages of known single and dual register burners. When used in such manner in a single register burner, the invention changes secondary air flow characteristics so as to mimic those commonly found in a dual register burner.

Abstract translation: 用于化石燃料燃烧器的空气通道中的复合叶轮（CSV）。 在一个实施例中，CSV是连接到中间板状轨道元件的板状外部和内部叶片元件的多件式结构。 在另一个实施例中，CSV包括至少两个并且可能的三个叶片部分，其相对于彼此以间隔开的横向关系刚性地互连。 如果需要，叶片部分可以是简单的弯曲平面表面，并且可以布置成具有相对于彼此成角度布置的后缘。 可以采用本发明来代替在已知的单和双重配准烧嘴的二次空气通道中发现的扁平旋转叶片。 当以这种方式在单个对位燃烧器中使用时，本发明改变二次空气流动特性，以模拟在双重配准燃烧器中通常发现的那些。

公开(公告)号：US5827054A

公开(公告)日：1998-10-27

申请号：US584785

申请日：1996-01-11

Applicant: Hamid Sarv ,  Jeffrey A. LaRose ,  Albert D. LaRue ,  Peter W. Waanders

Inventor： Hamid Sarv ,  Jeffrey A. LaRose ,  Albert D. LaRue ,  Peter W. Waanders

IPC: F23C7/00 ,  F23D1/00

CPC classification number: F23C7/004 ,  F23D1/00

Abstract: A compound spin vane (CSV) for use in an air passage of a fossil fuel-fired burner. In one embodiment, the CSV is a multi-piece construction of platelike outer and inner vane elements connected to an intermediate platelike rail element. In another embodiment, the CSV includes at least two and possibly three vane portions, rigidly interconnected in spaced lateral relationship with respect to each other. If desired, the vane portions may be simple, curved planar surfaces, and may be arranged with trailing edges arranged at angles with respect to each other. The invention may be employed as a replacement for flat spin vanes found in secondary air passages of known single and dual register burners. When used in such manner in a single register burner, the invention changes secondary air flow characteristics so as to mimic those commonly found in a dual register burner.

公开(公告)号：US5605103A

公开(公告)日：1997-02-25

申请号：US526292

申请日：1995-09-11

Applicant: Albert D. LaRue

Inventor： Albert D. LaRue

IPC: F23D1/02

CPC classification number: F23D1/02 ,  Y02E20/344

Abstract: A coal burner with impeller for a furnace has a housing containing a plurality of sets of blades which direct the fuel from the coal nozzle into a plurality of non-intersecting flows directed obliquely towards the longitudinal axis of the housing. The non-intersecting flows create a fuel-rich devolatilization zone and an air-rich char burnout zone within the furnace and limit the flame length of the burner.

Abstract translation: 具有用于炉子的叶轮的煤燃烧器具有容纳多组叶片的壳体，所述多个叶片将燃料从煤喷嘴引导到与壳体的纵向轴线倾斜地定向的多个不相交的流动。 不相交的流在炉内产生富燃料的脱挥发分区和富含空气的焦炭烧尽区，并限制燃烧器的火焰长度。

公开(公告)号：US4627366A

公开(公告)日：1986-12-09

申请号：US776194

申请日：1985-09-16

Applicant: Albert D. LaRue ,  Roger A. Clocker ,  Norman F. Smith, Jr.

Inventor： Albert D. LaRue ,  Roger A. Clocker ,  Norman F. Smith, Jr.

IPC: F23D1/00 ,  F23D1/02 ,  F23K3/02

CPC classification number: F23D1/02 ,  F23K3/02

Abstract: A primary air exchange device for a burner of a pulverized fuel, such as coal, with burner including a supply line through which a primary air and pulverized fuel mixture is supplied. A separator having its inlet within the supply line is dimensioned to receive and remove approximately one half of the primary air while the remaining half of the primary air moves past the separator. Additionally approximately 90% of the pulverized fuel passes the separator while only about 10% of the pulverized fuel enters the separator along with approximately one half the primary air. This air and small quantity of fuel mixture is delivered from the separator to a nozzle where it is discharged into a burner throat of a furnace. Hot air is injected into the remaining mixture of half the primary air plus the large percentage of pulverized fuel to heat this fuel before it is injected into the furnace for ignition.

Abstract translation: 一种用于诸如煤的粉煤燃料的燃烧器的一次空气交换装置，具有燃烧器，燃烧器包括供应一条空气和粉碎的燃料混合物的供应管线。 具有其在供应管线内的入口的分离器的尺寸被设计成接收和去除一次空气的大约一半，而剩余的一半空气移动通过分离器。 此外，大约90％的粉碎燃料通过分离器，而只有约10％的粉碎燃料与大约一半的一次空气一起进入分离器。 这种空气和少量的燃料混合物从分离器输送到喷嘴，在那里它被排放到炉的燃烧器喉部。 将热空气注入到一半空气的剩余混合物中加上大量的粉碎燃料，以在燃料注入炉内点燃之前加热该燃料。

公开(公告)号：US5697306A

公开(公告)日：1997-12-16

申请号：US789049

申请日：1997-01-28

Applicant: Albert D. LaRue ,  Hamid Sarv

Inventor： Albert D. LaRue ,  Hamid Sarv

IPC: F23D1/02 ,  F23D17/00 ,  F23C1/12

CPC classification number: F23D17/005 ,  F23D1/02 ,  F23D2201/20

Abstract: A burner for the combustion of a pulverized coal plus primary air mixture includes a nozzle pipe having an inlet for receiving a pulverized coal plus primary air mixture and an outlet for discharging same. A hollow plug extends axially within the nozzle pipe and defines an annular space between the plug and the nozzle pipe for conveying the pulverized coal plus primary air mixture therethrough. The hollow plug is axially moveable within the nozzle pipe. A variable amount of core air is supplied into the hollow plug so that it mixes with the primary air plus pulverized coal mixture at an outlet of the burner to vary the PA/PC ratio and maintain a desired primary air to primary coal ratio at the outlet of the burner. Natural gas can also be supplied into the hollow plug as a supplemental fuel for cofiring at the outlet end of the burner. The amount of core air supplied is based upon (1) the coal flow rate being provided to the burner, in lb/hr, and (2) the percent volatile matter content (%VM) in the coal being burned.

Abstract translation: 用于粉煤加一次空气混合物的燃烧的燃烧器包括具有用于接收粉煤加一次空气混合物的入口和用于将其排出的出口的喷嘴管。 中空塞在喷嘴管内轴向延伸，并且在塞子和喷嘴管之间限定一个环形空间，用于将粉煤加一次空气混合物输送通过。 中空塞在喷嘴管内可轴向移动。 将可变量的核心空气供应到中空塞中，使其在燃烧器的出口处与一次空气加粉煤混合物混合以改变PA / PC比，并在出口处保持所需的初级空气至初级煤比 的燃烧器。 也可以将天然气作为补充燃料供应到中空塞中，以在燃烧器的出口端进行共烧。 提供的核心空气的量基于（1）以lb / hr提供给燃烧器的煤流速，和（2）被燃烧的煤中的挥发性物质含量百分比（％VM）。

公开(公告)号：US5329866A

公开(公告)日：1994-07-19

申请号：US116312

申请日：1993-09-03

Applicant: Albert D. LaRue

Inventor： Albert D. LaRue

IPC: F23C1/12 ,  F23C7/02 ,  F23C99/00 ,  F23D1/00

CPC classification number: F23C7/02 ,  F23D1/00

Abstract: A burner and port combination for the combustion of a pulverized coal fuel plus air mixture comprises a throat and a burner nozzle positioned at a central area of the throat. The burner nozzle has an inlet for receiving the pulverized coal fuel plus air mixture and an outlet for discharging the pulverized coal fuel plus air mixture. A secondary air tube is positioned laterally adjacent the burner nozzle at each lateral side of the nozzle in the throat for providing a first portion of a secondary air to the throat. A plurality of vanes are positioned at an upper portion of the throat above the burner nozzle and the tubes and at a lower portion of the throat below the burner nozzle tubes for deflecting a second portion of the secondary air from the burner nozzle.

Abstract translation: 用于粉煤燃料加空气混合物的燃烧的燃烧器和端口组合包括位于喉部的中心区域处的喉部和燃烧器喷嘴。 燃烧器喷嘴具有用于接收粉煤燃料加空气混合物的入口和用于排出粉煤燃料加空气混合物的出口。 二次空气管在喉部的喷嘴的每个侧面处横向邻近燃烧器喷嘴定位，以将第二部分空气提供给喉部。 多个叶片位于燃烧器喷嘴和管子上方的喉部的上部，并且位于燃烧器喷嘴管下方的喉部的下部，用于从燃烧器喷嘴偏转第二部分二次空气。

公开(公告)号：US4915619A

公开(公告)日：1990-04-10

申请号：US260435

申请日：1988-10-20

Applicant: Albert D. LaRue

Inventor： Albert D. LaRue

IPC: F23D14/22 ,  F23D17/00

CPC classification number: F23D17/00 ,  Y02E20/344

Abstract: An improved burner having a very particularly designed gas element for the combustion of coal, oil or gas places a plurality of retractable and rotatable gas elements in close proximity to the outlet end of a tubular burner nozzle of the burner which are shielded from combustion air provided around the tubular burner nozzle by a flame stabilizing ring having a plurality of openings adapted to closely receive each of the plurality of retractable and rotatable gas elements. Eddies produced by the flame stabilizing ring create a low oxygen/fuel rich flame resulting in reduced NO.sub.x formation.

Abstract translation: 具有非常特别设计的用于煤，油或气体燃烧的气体元件的改进的燃烧器将多个可缩回和可旋转的气体元件放置在靠近燃烧器的管状燃烧器喷嘴的出口端，所述燃烧器的管状燃烧器喷嘴被屏蔽以提供燃烧空气 通过具有多个开口的火焰稳定环围绕管状燃烧器喷嘴，适于紧密接收多个可收回和可旋转的气体元件中的每一个。 由火焰稳定环产生的酸形成低氧/富燃料火焰，导致NOx形成减少。

公开(公告)号：US4836772A

公开(公告)日：1989-06-06

申请号：US190734

申请日：1988-05-05

Applicant: Albert D. LaRue

Inventor： Albert D. LaRue

IPC: F23D17/00

CPC classification number: F23D17/00 ,  Y02E20/344

Abstract: An improved burner for the combustion of coal, oil or gas places a plurality of retractable and rotatable gas elements in close proximity to the outlet end of a tubular burner nozzle of the burner which are shielded from combustion air provided around the tubular burner nozzle by a flame stabilizing ring having a plurality of openings adapted to closely receive each of the plurality of retractable and rotatable gas elements. Eddies produced by the flame stabilizing ring create a low oxygen/fuel rich flame resulting in reduced NO.sub.x formation.

Abstract translation: 用于煤，油或气体的燃烧的改进的燃烧器将多个可缩回和可旋转的气体元件放置在靠近燃烧器的管状燃烧器喷嘴的出口端处，该气体元件与设置在管状燃烧器喷嘴周围的燃烧空气屏蔽 火焰稳定环具有适于紧密地接收多个可收回和可旋转的气体元件中的每一个的多个开口。 由火焰稳定环产生的酸形成低氧/富燃料火焰，导致NOx形成减少。

公开(公告)号：US4654001A

公开(公告)日：1987-03-31

申请号：US822456

申请日：1986-01-27

Applicant: Albert D. LaRue

Inventor： Albert D. LaRue

IPC: F23D1/00 ,  F23D14/62

CPC classification number: F23D1/00

Abstract: A combustion method and burner nozzle system having a DeNO.sub.x Stabilizer concentrically secured within a burner nozzle such that the fuel stream is separated into an outer fuel-rich stream and an inner fuel-lean stream. The outer fuel-rich stream passes around the exterior of the DeNO.sub.x Stabilizer where its flow area is increased thereby decreasing its velocity before it is discharged from the burner nozzle. Concurrently, the inner fuel-lean stream passes through the DeNO.sub.x Stabilizer where its flow area is reduced thereby increasing its velocity before this stream is discharged from the burner nozzle central to the slower fuel-rich stream. Mixing members interior of the burner nozzle further mix the fuel-rich stream before exiting the nozzle.

Abstract translation: 一种燃烧方法和燃烧器喷嘴系统，其具有同心地固定在燃烧器喷嘴内的DeNOx稳定器，使得燃料流被分离成外部富燃料流和贫燃料流。 外部富燃料流通过DeNOx稳定器的外部，其流动面积增加，从而在从燃烧器喷嘴排出之前降低其速度。 同时，内贫燃料流通过DeNOx稳定器，其中其流动面积减小，从而在该流从燃烧器喷嘴中心排出到较慢的富燃料流之前增加其速度。 燃烧器喷嘴的混合构件内部在离开喷嘴之前进一步混合富燃料流。