公开(公告)号：US08413595B2

公开(公告)日：2013-04-09

申请号：US12547868

申请日：2009-08-26

Applicant: John Grusha

Inventor： John Grusha

IPC: F23D1/00 ,  F23K3/02

CPC classification number: F23D1/00 ,  F23D2201/101 ,  F23D2211/00 ,  F23D2214/00

Abstract: In a boiler furnace having nozzles for introducing combustion media such as air and coal, nozzle tip walls that have the greatest exposure to radiant heat and hot gases are provided with arrays of air holes that allow air to flow to the exposed sides of the walls from the opposite sides in order to reduce the temperature difference between the two sides and thereby reduce thermal distortion and damage resulting from oxidation.

Abstract translation: 在具有用于引入诸如空气和煤的燃烧介质的喷嘴的锅炉炉中，具有最大暴露于辐射热和热气体的喷嘴尖端壁设置有允许空气流动到壁的暴露侧面的阵列的空气孔， 为了减少两侧之间的温差，从而减少由于氧化引起的热变形和损坏，相反的两侧。

公开(公告)号：US5020454A

公开(公告)日：1991-06-04

申请号：US606682

申请日：1990-10-31

Applicant: Todd D. Hellewell ,  John Grusha ,  Michael S. McCartney

Inventor： Todd D. Hellewell ,  John Grusha ,  Michael S. McCartney

IPC: F23C1/00 ,  F23C5/00 ,  F23C5/32 ,  F23C6/00 ,  F23C6/04 ,  F23C99/00 ,  F23K3/00 ,  F23L1/00

CPC classification number: F23C5/32 ,  F23C1/00 ,  F23C6/047 ,  F23C2201/101

Abstract: A clustered concentric tangential firing system (12) particularly suited for use in fossil fuel-fired furnaces (10) and a method of operating such furnaces (10) equipped with a clustered concentric tangential firing system (12). The clustered concentric tangential firing system (12) includes a windbox (20), a first cluster of fuel nozzles (38,40) mounted in the windbox (20) and operative for injecting clustered fuel into the furnace (10) so as to create a first fuel-rich zone therewithin, a second cluster of fuel nozzles (68,70) mounted in the windbox (20) and operative for injecting clustered fuel into the furnace (10) so as to create a second fuel-rich zone therewithin, an offset air nozzle (56) mounted in the windbox (20) and operative for injecting offset air into the furnace (10) such that the offset air is directed away from the clustered fuel injected into the furnace (10) and towards the walls of the furnace (10), a close coupled overfire air nozzle (78) mounted in the windbox ( 20) and operative for injecting close coupled overfire air into the furnace (10), and a separated overfire air nozzle (90) mounted in the window (20) and operative for injecting separated overfire air into the furnace (10).

Abstract translation: 一种特别适用于化石燃料燃烧炉（10）的聚簇同心切线燃烧系统（12）以及一种操作配备有集束同心切向燃烧系统（12）的这种炉子（10）的方法。 集束同心切线点火系统（12）包括风箱（20），安装在风箱（20）中的第一燃料喷嘴群（38,40）并且用于将集料燃料喷射到炉（10）中，以便产生 其中具有第一富燃料区，安装在所述风箱（20）中的第二燃料喷嘴簇（68,70），用于将集料燃料喷入所述炉（10）中，以便在其中形成第二富燃区， 安装在所述风箱（20）中并且用于将偏置空气喷射到所述炉（10）中的偏置空气喷嘴（56），使得所述偏移空气被引导离开喷射到所述炉（10）中的所述聚集燃料并且朝向 炉子（10），安装在风箱（20）中并且用于将紧密耦合的过火空气注入炉子（10）中的紧密联接的超燃空气喷嘴（78）和安装在窗户中的分开的过火空气喷嘴（90） （20），并且用于将分离的过热空气喷射到炉（10）中。

公开(公告)号：US4634054A

公开(公告)日：1987-01-06

申请号：US712454

申请日：1985-03-14

Applicant: John Grusha

Inventor： John Grusha

IPC: F23C5/06 ,  F23C7/02 ,  F23D1/00 ,  F23K3/02

CPC classification number: F23D1/00 ,  F23C5/06 ,  F23C7/02 ,  F23D2201/101

Abstract: An improved nozzle tip (30) which provides enhanced ignition and stabilization of pulverized fuel flames in furnaces operating at low load. The nozzle tip (30) comprises open-ended inner and outer shells (32,34) mounted to the fuel delivery pipe (12) and defining a flow passageway within the inner shell through which the pulverized fuel is directed into the furnace and an annular flow passageway (50) between the inner and outer shells through which additional air is directed into the furnace. A pair of diverging splitter plates (41,42) are disposed within the inner shell (32) so as to divide the flow passageway therethrough into two separate, diverging subpassages (52,54) so that the pulverized fuel stream discharging from the fuel delivery pipe is split into first and second streams (60,70) which pass from the nozzle tip (30) into the furnace in a diverging manner thereby establishing an ignition stabilizing pocket in the low pressure zone (80) created between the diverging fuel streams.

Abstract translation: 改进的喷嘴尖端（30），其在低负荷运行的炉子中提供粉煤燃料火焰的提高点火和稳定性。 喷嘴尖端（30）包括安装在燃料输送管（12）上的开放式内外壳（32,34），并且在内壳内限定流动通道，粉碎的燃料通过该通道被引入炉内， 内壳和外壳之间的流动通道（50），通过该通道将额外的空气引导到炉中。 一对发散的分流板（41,42）设置在内壳（32）内，以将流动通道分成两个分开的发散的次通道（52,54），使得从燃料输送 管道被分成从分歧喷嘴（30）进入炉中的第一和第二流（60,70），从而在分散的燃料流之间形成的低压区（80）中建立点火稳定袋。

公开(公告)号：US20110048293A1

公开(公告)日：2011-03-03

申请号：US12547868

申请日：2009-08-26

Applicant: John Grusha

Inventor： John Grusha

IPC: F23D1/02 ,  F23C5/06 ,  F23C7/00

CPC classification number: F23D1/00 ,  F23D2201/101 ,  F23D2211/00 ,  F23D2214/00

Abstract: In a boiler furnace having nozzles for introducing combustion media such as air and coal, nozzle tip walls that have the greatest exposure to radiant heat and hot gases are provided with arrays of air holes that allow air to flow to the exposed sides of the walls from the opposite sides in order to reduce the temperature difference between the two sides and thereby reduce thermal distortion and damage resulting from oxidation.

Abstract translation: 在具有用于引入诸如空气和煤的燃烧介质的喷嘴的锅炉炉中，具有最大暴露于辐射热和热气体的喷嘴尖端壁设置有允许空气流动到壁的暴露侧面的阵列的空气孔， 为了减少两侧之间的温差，从而减少由于氧化引起的热变形和损坏，相反的两侧。

公开(公告)号：US06260491B1

公开(公告)日：2001-07-17

申请号：US09394417

申请日：1999-09-13

Applicant: John Grusha

Inventor： John Grusha

IPC: F23D100

CPC classification number: F23D1/00 ,  F23D2201/101 ,  F23D2201/20

Abstract: A nozzle for feeding combustion maintaining medium into a furnace at high temperature conditions includes a nozzle tip, at least partly protruding into the furnace, and a feeding mechanism for feeding the combustion medium from a source of the medium to the nozzle tip. The nozzle tip includes a mainly open ended outer shell, an air cooling zone, a shroud, and an air channel. The outer shell includes a first end wall portion in flow connection with the feeding mechanism and a second end wall portion protruding into the furnace. The cooling zone is formed on the interior side of at least a portion of the second end wall portion of the outer shell, by providing an air flow along the interior side. The shroud includes a shroud wall portion disposed to cover at least a portion of the first end wall portion of the outer shell. The shroud channel is formed between the shroud wall portion of the shroud and the first end wall portion of the outer shell, for discharging from the shroud channel an air shroud flow along the exterior side of the second end wall portion of the outer shell.

Abstract translation: 用于在高温条件下将燃烧维持介质供给到炉中的喷嘴包括至少部分地突出到炉中的喷嘴尖端和用于将燃烧介质从介质源供给到喷嘴尖端的进给机构。 喷嘴尖端包括主要开放的外壳，空气冷却区，护罩和空气通道。 外壳包括与进给机构流动连接的第一端壁部分和突出到炉中的第二端壁部分。 冷却区通过沿内侧的空气流形成在外壳的第二端壁部分的至少一部分的内侧上。 护罩包括设置成覆盖外壳的第一端壁部分的至少一部分的护罩壁部分。 护罩通道形成在护罩的护罩壁部分和外壳的第一端壁部分之间，用于从护罩通道沿着外壳的第二端壁部分的外侧排出空气护罩流。