公开(公告)号：US06752620B2

公开(公告)日：2004-06-22

申请号：US10062597

申请日：2002-01-31

Applicant: Kevin Ray Heier ,  Mahendra Ladharam Joshi ,  Jeannine M. Harris ,  Mark Daniel D'Agostini ,  Aleksandar Georgi Slavejkov

Inventor： Kevin Ray Heier ,  Mahendra Ladharam Joshi ,  Jeannine M. Harris ,  Mark Daniel D'Agostini ,  Aleksandar Georgi Slavejkov

IPC: F23C500

CPC classification number: F23M5/025 ,  F23C5/32 ,  F23C6/047 ,  F23C2201/20 ,  F23C2202/40 ,  F23D14/22 ,  F23D14/58 ,  F23D2900/00011

Abstract: A symmetric device for stabilization of a flame includes a primary oxidant pipe and a fuel pipe. The fuel pipe is internal to the primary oxidant pipe creating a primary oxidant conduit. A secondary oxidant pipe is internal to the fuel pipe creating a fuel conduit. A primary oxidant source supplies oxidant to the primary oxidant conduit. A fuel source supplies fuel to the fuel conduit. A secondary oxidant source supplies oxidant to the secondary oxidant pipe. The first oxidant velocity is greater than the second oxidant velocity and the fuel velocity is less than the second oxidant velocity. The primary oxidant pipe end extends past the fuel pipe forward end and the fuel pipe forward end extends past the secondary oxidant pipe end. A mismatch in velocity between fuel and oxidant generates a large scale vortex. An asymmetric embodiment is also provided.

Abstract translation: 用于稳定火焰的对称装置包括主氧化剂管和燃料管。 燃料管道在主要氧化剂管道的内部，形成主氧化剂管道。 辅助氧化剂管在燃料管的内部，形成燃料管。 主氧化剂源将氧化剂供应到主氧化剂导管。 燃料源向燃料管道供应燃料。 次级氧化剂源将氧化剂供应到次级氧化剂管道。 第一氧化剂速度大于第二氧化剂速度，并且燃料速度小于第二氧化剂速度。 主氧化剂管端延伸超过燃料管前端，燃料管前端延伸超过次氧化剂管端。 燃料和氧化剂之间的速度失配产生大规模的涡流。 还提供了不对称的实施例。

公开(公告)号：US20040060301A1

公开(公告)日：2004-04-01

申请号：US10260311

申请日：2002-09-27

Inventor： Alexander G. Chen ,  Donald W. Kendrick

IPC: F23R003/28

CPC classification number: F23R3/346 ,  F23C2201/20 ,  F23D2900/14021 ,  F23N1/002 ,  F23N2025/08 ,  F23N2037/02 ,  F23N2041/20 ,  F23R3/286 ,  F23R3/343

Abstract: The present invention relates to an improved multi-point injector for use in a gas turbine engine or other types of combustors. The multi-point fuel injector has a plurality of nozzles arranged in at least two arrays such as concentric rings. The injector further has different fuel circuits for independently controlling the fuel flow rate for the nozzles in each of the arrays. Each of the nozzles include a fluid channel and one or more swirler vanes in the fluid channel for creating a swirling flow within the fluid channel. A method for injecting a fuel/air mixture into a combustor stage of a gas turbine engine is also described. At least one zone has a flame hot enough to stabilize the entire combustor flame.

Abstract translation: 本发明涉及用于燃气涡轮发动机或其它类型的燃烧器的改进的多点喷射器。 多点燃料喷射器具有布置在诸如同心环的至少两个阵列中的多个喷嘴。 喷射器还具有用于独立地控制每个阵列中的喷嘴的燃料流量的不同燃料电路。 每个喷嘴包括流体通道和流体通道中的一个或多个旋流器叶片，用于在流体通道内产生旋流。 还描述了将燃料/空气混合物喷射到燃气涡轮发动机的燃烧器级中的方法。 至少一个区域具有足够热的火焰以稳定整个燃烧器火焰。

公开(公告)号：US06663380B2

公开(公告)日：2003-12-16

申请号：US09946444

申请日：2001-09-05

Applicant: Iosif K. Rabovitser ,  Richard A. Knight ,  David F. Cygan ,  Serguei Nester ,  Hamid A. Abbasi

Inventor： Iosif K. Rabovitser ,  Richard A. Knight ,  David F. Cygan ,  Serguei Nester ,  Hamid A. Abbasi

IPC: F23M300

CPC classification number: F23C6/04 ,  F23C9/006 ,  F23C2201/20 ,  F23C2201/30 ,  F23C2900/06041

Abstract: A method and apparatus for combustion of a fuel in which a first-stage fuel and a first-stage oxidant are introduced into a combustion chamber and ignited, forming a primary combustion zone. At least about 5% of the total heat output produced by combustion of the first-stage fuel and the first-stage oxidant is removed from the primary combustion zone, forming cooled first-stage combustion products. A portion of the cooled first-stage combustion products from a downstream region of the primary combustion zone is recirculated to an upstream region of primary combustion zone. A second-stage fuel is introduced into the combustion chamber downstream of the primary combustion zone and ignited, forming a secondary combustion zone. At least about 5% of the heat from the secondary combustion zone is removed. In accordance with one embodiment, a third-stage oxidant is introduced into the combustion chamber downstream of the secondary combustion zone, forming a tertiary combustion zone.

公开(公告)号：US20030148236A1

公开(公告)日：2003-08-07

申请号：US10067450

申请日：2002-02-05

Inventor： Mahendra Ladharam Joshi ,  Kevin Ray Heier ,  Aleksandar Georgi Slavejkov

IPC: F23D001/00

CPC classification number: F23M5/025 ,  F23C5/32 ,  F23C6/047 ,  F23C2201/20 ,  F23C2202/40 ,  F23D14/22 ,  F23D14/58 ,  F23D2900/00011

Abstract: An ultra low NOx burner for process heating is provided which includes a fluid based flame stabilizer which provides a fuel-lean flame at an equivalence ratio in the range of phinull0.05 to phinull0.3 and fuel staging lances surrounding the flame stabilizer in circular, flat, or load shaping profiles, each lance comprising a pipe having a staging nozzle at a firing end thereof, each lance having at least one hole for staging fuel injection, and each hole having a radial divergence angle and an axial divergence angle. The at least one hole and the divergence angles provide circular, flat or load shaping flame pattern. The burner provides NOx emissions of less than 9 ppmv at near stoichiometry combustion conditions.

Abstract translation: 提供了一种用于工艺加热的超低NOx燃烧器，其包括基于流体的火焰稳定器，其以等于phi = 0.05至phi = 0.3的范围内的当量比提供无燃料燃烧火焰，以及环形火焰稳定器周围的燃料分级喷枪， 平坦的或负载成形轮廓，每个喷枪包括在其燃烧端具有分段喷嘴的管，每个喷枪具有至少一个用于分级燃料喷射的孔，并且每个孔具有径向发散角和轴向发散角。 至少一个孔和发散角提供圆形，平坦或负载成形火焰图案。 燃烧器在接近化学计量燃烧条件下提供小于9ppmv的NOx排放。

公开(公告)号：US20030054303A1

公开(公告)日：2003-03-20

申请号：US09946444

申请日：2001-09-05

Inventor： Iosif K. Rabovitser ,  Richard A. Knight ,  David F. Cygan ,  Serguei Nester ,  Hamid A. Abbasi

IPC: F23L001/00 ,  F23M003/00

CPC classification number: F23C6/04 ,  F23C9/006 ,  F23C2201/20 ,  F23C2201/30 ,  F23C2900/06041

Abstract: A method and apparatus for combustion of a fuel in which a first-stage fuel and a first-stage oxidant are introduced into a combustion chamber and ignited, forming a primary combustion zone. At least about 5% of the total heat output produced by combustion of the first-stage fuel and the first-stage oxidant is removed from the primary combustion zone, forming cooled first-stage combustion products. A portion of the cooled first-stage combustion products from a downstream region of the primary combustion zone is recirculated to an upstream region of primary combustion zone. A second-stage fuel is introduced into the combustion chamber downstream of the primary combustion zone and ignited, forming a secondary combustion zone. At least about 5% of the heat from the secondary combustion zone is removed. In accordance with one embodiment, a third-stage oxidant is introduced into the combustion chamber downstream of the secondary combustion zone, forming a tertiary combustion zone.

Abstract translation: 一种用于燃烧燃料的方法和装置，其中将第一级燃料和第一级氧化剂引入燃烧室并点燃，形成一级燃烧区。 从第一级燃烧区除去第一级燃料和第一级氧化剂燃烧产生的总热量的至少约5％，形成冷却的第一级燃烧产物。 来自主燃烧区域的下游区域的冷却的第一级燃烧产物的一部分再循环到主燃烧区域的上游区域。 第二级燃料被引入到主燃烧区下游的燃烧室中并点燃，形成二级燃烧区。 来自二次燃烧区域的至少约5％的热量被去除。 根据一个实施方案，将第三级氧化剂引入二次燃烧区下游的燃烧室，形成三级燃烧区。

公开(公告)号：US20030006770A1

公开(公告)日：2003-01-09

申请号：US10102444

申请日：2002-03-19

Applicant: Board of Regents of the University of Washington

Inventor： Justin P. Smith

IPC: G01V003/00

CPC classification number: G01R33/56 ,  F23C6/045 ,  F23C7/06 ,  F23C9/00 ,  F23C2201/20 ,  F23C2202/10 ,  F23C2900/06041 ,  F23C2900/09002 ,  F23L2900/15043 ,  G01R33/58 ,  Y02E20/348

Abstract: An MRI apparatus and method useful for both industrial applications and medical applications is provided. The apparatus and procedures are capable of estimating the value of a continuous property, such as concentration, viscosity or the like by interpolating or extrapolating from a model derived from training sets of data representing measurements of samples with known properties. A number of techniques are provided for objectifying the analysis. Cluster analysis techniques can be used to supplement, assist or replace subjective judgments by trained operators. Calculations or judgments regarding similarity can be made with respect to stored libraries of signatures, particularly where the library of stored signatures is obtained objectively, e.g., using cluster analysis, standardization and calibration. The signatures can be expanded signatures which include non-MR as well as MR data. Inhomogeneities in the field of a particular MR device can be corrected for based on measurements of a calibration standard having a homogeneous make up. MR measurements taken through different planes of a body or different times can be standardized by including, in at least some of the fields of view, a calibration standard which has a known MR signature.

公开(公告)号：US20020069757A1

公开(公告)日：2002-06-13

申请号：US09734708

申请日：2000-12-13

Inventor： Christopher S. Lehn

IPC: B01D045/12

CPC classification number: F23D1/02 ,  B01D45/12 ,  F23C6/045 ,  F23C2201/20

Abstract: A system for removing gas from a stream of a mixture of gas and particulate solids. The system includes a separation vessel having an upstream end portion and a downstream cowl portion, the upstream end portion having an inlet for introducing the stream tangentially into the vessel to separate centrifugally from the stream (i) a rich portion, comprising a solids-rich mixture, proceeding along a helical path at an outer annular portion of the separation vessel to the cowl portion, and (ii) a lean portion, comprising a solids-lean mixture, proceeding along a helical path at an inner portion of the separation vessel to the cowl section, multiple helical ports through which the rich portion proceeds axially through the cowl section, without significantly losing its momentum, to be discharged axially from the separation vessel, and multiple passages between the helical ports through which the lean portion proceeds radially outwards to be discharged from the separation vessel.

Abstract translation: 一种用于从气体和颗粒状固体的混合物流中除去气体的系统。 所述系统包括具有上游端部分和下游整流罩部分的分离容器，所述上游端部分具有入口，所述入口用于将所述流切向地引入所述容器中以与所述流离心分离（i）富含部分，所述富部分包含富含固体 混合物，沿着分离容器的外部环形部分处的螺旋路径前进到整流罩部分，以及（ii）贫的部分，其包含贫固体混合物，沿着分离容器内部的螺旋路径前进到 整流罩部分，多个螺旋端口，富部分通过该螺旋端口轴向地穿过整流罩部分，而不会明显地失去其动量，从分离容器轴向排出;以及在螺旋端口之间的多个通道，贫部分通过该通道径向向外延伸到 从分离容器排出。

公开(公告)号：US20010018171A1

公开(公告)日：2001-08-30

申请号：US08981247

申请日：1997-12-17

Inventor： AHMAD AL-HALBOUNI

IPC: F23M003/02 ,  F23C005/00 ,  F23M003/00 ,  F23M003/04 ,  F23D011/44 ,  F23M009/00 ,  F23C005/06 ,  F23D001/00

CPC classification number: F23D14/20 ,  F23C7/00 ,  F23C2201/20 ,  F23D2205/00

Abstract: There exists a tendency in the construction of combustion devices to employ a multi-level, spatially distributed feed of the combustion air in order to be able to better influence the stoichiometric ratios during the combustion. These solutions are little suited for the compact construction and, in addition, the flame temperature is too high in the region of the air feed relative to a low NOx combustion if one does not employ expensive constructions with additional cooling bodies. These problems are avoided if the combustion air is fed into the combustion zone by means of one or several combustion-air distributor bodies (7) in the inner space of a largely hollow-cylindric-like space section, filled by the flame, along the entire or a large part of the length of the flame. For this purpose, a plurality of openings for the air exit are distributed over the contour of the combustion-air distributor body. In contrast, the fuel is introduced only in the region of the bottom part of the combustion-air distributor bodies, i.e. in the region of the base of the flame, by means of at least one nozzle row (12) including several fuel nozzles, wherein the nozzle row is disposed around the combustion-air distributor bodies. It has proven to be particularly effective for an optimum preservation of the predetermined value regions of the air number lambda if the jet-flow direction of the fuel nozzles within the same nozzle row and/or the jet-flow direction of the fuel nozzles of neighboring nozzle rows are directed to different longitudinal regions of the combustion-air distributor bodies. The admixture of small amounts of air to the fuel leads to a strong dilution of the flame and to a drastic decrease of the NOx and CO emission.

Abstract translation: 在燃烧装置的构造中存在使用燃烧空气的多级空间分布的进料以便能够更好地影响燃烧期间的化学计量比的趋势。 这些解决方案几乎不适合紧凑的结构，而且如果不使用具有额外的冷却体的昂贵的结构，则在空气供给区域中相对于低NOx燃烧，火焰温度太高。 如果燃烧空气通过一个或几个燃烧空气分配器体（7）进入燃烧区域，则避免了这些问题，该燃烧空气分配器体（7）沿着沿着火焰填充的大致中空圆柱形的空间部分的内部空间 整个或大部分长度的火焰。 为此目的，用于空气出口的多个开口分布在燃烧空气分配器主体的轮廓上。 相比之下，燃料仅通过包括多个燃料喷嘴的至少一个喷嘴排（12）在燃烧 - 空气分配器主体的底部区域（即在火焰的底部区域）中被引入， 其中喷嘴列设置在燃烧 - 空气分配器主体周围。 如果在相邻喷嘴列内的燃料喷嘴的喷射流动方向和/或相邻的燃料喷嘴的喷射流动方向上，已经证明对于最佳保存空气数λ的预定值区域是特别有效的 喷嘴排被引导到燃烧 - 空气分配器主体的不同纵向区域。 少量空气与燃料的混合导致火焰的强烈稀释和NOx和CO排放的急剧下降。

公开(公告)号：US20010012603A1

公开(公告)日：2001-08-09

申请号：US09775918

申请日：2001-02-02

Inventor： Frederic Bury

IPC: F23D014/46 ,  F23D001/00

CPC classification number: F23D14/20 ,  F23C6/047 ,  F23C2201/20 ,  F23C2201/30 ,  F23D14/74 ,  F23D2900/21003 ,  F23G7/065

Abstract: The technical field of the invention is that of making nullin-streamnull burners which are placed directly inside a duct carrying a flow of gas, with the burners serving to heat the gas and being placed as burner rails that are generally made up of individual blocks. Such burners comprising a pipe on an axis XXnull and suitable for extending transversely across the flow direction of said gas, the pipe being fed with a fuel gas and being pierced by at least two holes in alignment on a common generator line, the burner also having a flame stabilizer formed by two deflector-forming fins diverging on either side of said generator line. According to the invention, at least one of said holes is extended by a tube extending beyond the outer edges of the fins and pierced by at least one fuel gas ejection orifice at its distal end.

Abstract translation: 本发明的技术领域是制造直接放置在承载气体的管道内的“流入式”燃烧器，其中燃烧器用于加热气体并被放置为通常由个体构成的燃烧器轨道 块。 这种燃烧器包括在轴线XX'上的管道，适于沿着所述气体的流动方向横向延伸，所述管道被供给燃料气体，并且在共同的发电机线路上被对准的至少两个孔穿透，燃烧器也 具有由在所述发电机线的任一侧上分叉的两个偏转器形成的翅片形成的火焰稳定器。 根据本发明，所述孔中的至少一个由延伸超过翅片的外边缘的管延伸，并在其远端由至少一个燃料气体喷射孔刺穿。

公开(公告)号：US06237510B1

公开(公告)日：2001-05-29

申请号：US09043425

申请日：1998-03-19

Applicant: Toshikazu Tsumura ,  Kenji Kiyama ,  Tadashi Jimbo ,  Shigeki Morita ,  Koji Kuramashi ,  Kunio Okiura ,  Shinichiro Nomura ,  Miki Mori ,  Noriyuki Ohyatsu ,  Noboru Takarayama ,  Toshihiko Mine ,  Hironobu Kobayashi ,  Hirofumi Okazaki

Inventor： Toshikazu Tsumura ,  Kenji Kiyama ,  Tadashi Jimbo ,  Shigeki Morita ,  Koji Kuramashi ,  Kunio Okiura ,  Shinichiro Nomura ,  Miki Mori ,  Noriyuki Ohyatsu ,  Noboru Takarayama ,  Toshihiko Mine ,  Hironobu Kobayashi ,  Hirofumi Okazaki

IPC: F23C110

CPC classification number: F23D1/00 ,  F23C2201/20 ,  F23C2202/40 ,  F23C2900/09002 ,  F23D2201/20 ,  F23D2209/20 ,  F23K2201/103

Abstract: A combustion burner includes a mixture nozzle (2) defining a mixture fluid passage through which a mixture fluid (1) containing pulverized coal and conveyor gas flows toward a furnace, secondary and tertiary air passages surrounding the mixture nozzle (2), through which secondary air (6) and tertiary air (9) for combustion purposes flow, respectively; and air injection nozzles (24) provided in the vicinity of an outer periphery of a distal end of the mixture nozzle (2). The air (21) is injected from the air injection nozzles (24) toward the axis of the mixture nozzle, so that the high-temperature gas in the vicinity of the outer periphery of the distal end of the mixture nozzle (2) is drawn into the mixture fluid (1) in the vicinity of the outer periphery of this distal end.

Abstract translation: 燃烧器包括限定混合流体通道的混合喷嘴（2），含有粉煤和输送气体的混合流体（1）通过该混合流体通道流向炉子，二次和三次空气通道围绕混合物喷嘴（2），二次 空气（6）和三次空气（9）分别用于燃烧目的流动; 以及设置在混合喷嘴（2）的前端的外周附近的空气喷射喷嘴（24）。 空气（21）从空气注入喷嘴（24）朝向混合喷嘴的轴线注入，使得混合喷嘴（2）的远端外周附近的高温气体被拉出 在该远端的外周附近的混合流体（1）中。