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    Gas turbine combustor with fuel and air swirler
    5.
    发明授权
    Gas turbine combustor with fuel and air swirler 有权
    燃气涡轮燃烧器与燃料和空气旋流器

    公开(公告)号：US06301900B1

    公开(公告)日：2001-10-16

    申请号：US09554447

    申请日：2000-07-06

    申请人： Shigemi Mandai ,  Masataka Ohta ,  Hideki Haruta ,  Koichi Nishida ,  Shinji Akamatsu ,  Masahiro Kamogawa

    发明人： Shigemi Mandai ,  Masataka Ohta ,  Hideki Haruta ,  Koichi Nishida ,  Shinji Akamatsu ,  Masahiro Kamogawa

    IPC分类号： F23R314

    CPC分类号： F23D11/38 ,  F23D11/107 ,  F23D2900/00016 ,  F23R3/28

    摘要： A nozzle cap (10) is disposed downstream of a nozzle body (1) of a combustor for a gas turbine, an inner surface part (12) of which is of a conical shape diverging downstream to define a fuel-jet guide (17) for guiding fuel jet ejected from one or more nozzle holes (3) provided at the center of a downstream end surface of the nozzle body. Fuel ejected from the one or more nozzle holes smoothly runs along the fuel-jet guide without remaining there to join with a swirl stream (S) in a swirl path (9), and to burn without generating smoke. Air introduced into a first auxiliary air path (6) defined between the nozzle body and a partition (5) at a position upstream thereof passes through a second auxiliary air path (16) defined between a downstream end surface (2) of the nozzle body (1) and an upstream end surface (13) of the nozzle cap and reaches an entrance (19) of the fuel-jet guide. The air then flows along the fuel-jet guide to cool the nozzle cap and prevent the fuel ejected from the one or more nozzle holes from sticking to the nozzle cap.

    摘要翻译： 喷嘴盖（10）设置在用于燃气轮机的燃烧器的喷嘴主体（1）的下游，其内表面部分（12）具有向下游扩散的锥形形状，以限定燃料喷射引导件（17） 用于引导从设置在喷嘴体的下游端面的中心的一个或多个喷嘴孔（3）喷出的燃料喷射。 从一个或多个喷嘴孔喷出的燃料沿燃料喷射导向装置平滑地延伸，而不残留在漩涡路径（9）中的旋流（S），并且燃烧而不产生烟雾。 被引入第一辅助空气通道（6）中的空气通道（6），其限定在喷嘴主体和分隔件（5）之间的位于其上游的位置处，通过限定在喷嘴体的下游端面（2）之间的第二辅助空气通道 （1）和喷嘴盖的上游端表面（13）到达燃料喷射引导件的入口（19）。 然后空气沿着燃料喷射引导件流动以冷却喷嘴帽，并且防止从一个或多个喷嘴孔喷出的燃料粘附到喷嘴帽。

    Gas turbine fuel injector with unequal fuel distribution
    7.
    发明授权
    Gas turbine fuel injector with unequal fuel distribution 有权
    具有不均等燃料分配的燃气轮机燃油喷射器

    公开(公告)号：US06460339B2

    公开(公告)日：2002-10-08

    申请号：US09828138

    申请日：2001-04-09

    申请人： Koichi Nishida ,  Katsunori Tanaka ,  Shigemi Mandai ,  Yutaka Kawata ,  Masataka Ohta

    发明人： Koichi Nishida ,  Katsunori Tanaka ,  Shigemi Mandai ,  Yutaka Kawata ,  Masataka Ohta

    IPC分类号： F02G300

    CPC分类号： F23R3/343 ,  F23R3/286

    摘要： A gas turbine combustor improves the fuel distribution from a main fuel nozzle, suppressing fluctuations of internal pressure and elevation of inner tube metal temperature, and enhancing the combustion stability and durability of the combustor. The gas turbine combustor is a multi-nozzle type premixing combustor with a nozzle outer tube (7) for forming and injecting a premixed gas of main fuel and combustion air divided and disposed in plural sections around a cone (4) for forming a diffusion flame by reaction between pilot fuel and combustion air disposed in a center of a section of a combustor inner tube (1). Nozzle holes (5a) of a main fuel nozzle (5) are formed in three positions at equal intervals on the nozzle main body wall, and one of them is disposed at the outer periphery of the combustor inner tube (1) on a diametral line linking between the center of the combustor inner tube (1) and the center of the main fuel nozzle (5), whereby the fuel distribution to the outer periphery is decreased.

    摘要翻译： 燃气轮机燃烧器改善来自主燃料喷嘴的燃料分布，抑制内部压力的波动和内管金属温度升高，提高燃烧器的燃烧稳定性和耐久性。 燃气轮机燃烧器是具有喷嘴外管（7）的喷嘴外管（7）的多喷嘴型预混合燃烧器，用于形成并喷射主燃料和燃烧空气的预混合气体，燃烧空气以形成扩散火焰的锥体（4）为中心分成多个部分 通过引燃燃料与设置在燃烧器内管（1）的一部分的中心的燃烧空气之间的反应。 主燃料喷嘴（5）的喷嘴孔（5a）以等间隔在喷嘴主体壁上形成三个位置，其中一个位于燃烧器内管（1）的外径上， 在燃烧器内管（1）的中心与主燃料喷嘴（5）的中心之间连接，从而减少了向外周的燃料分配。

    Combustor
    8.
    发明授权
    Combustor 有权
    燃烧器

    公开(公告)号：US6068467A

    公开(公告)日：2000-05-30

    申请号：US244031

    申请日：1999-02-04

    申请人： Shigemi Mandai ,  Koichi Nishida ,  Masataka Ota ,  Satoshi Tanimura ,  Kotaro Miyauchi ,  Mitsuru Inada ,  Shinji Akamatsu ,  Hideki Haruta

    发明人： Shigemi Mandai ,  Koichi Nishida ,  Masataka Ota ,  Satoshi Tanimura ,  Kotaro Miyauchi ,  Mitsuru Inada ,  Shinji Akamatsu ,  Hideki Haruta

    IPC分类号： F23D14/02 ,  F23D23/00 ,  F23C5/00

    CPC分类号： F23D23/00 ,  F23D14/02 ,  F23D2206/10 ,  F23D2209/10 ,  F23D2900/14021

    摘要： A combustor has a pilot nozzle 02 arranged at a central portion of an inner cylinder 01 opening at its end into a combustion chamber 018 and includes a plurality of main nozzles 03 arranged around its outer circumference. Along the outer circumference of a flame holding cone 014 for igniting a fuel F injected from the main nozzles 03 there are disposed elliptical extension pipes 016 of an elliptical sectional shape which are extended from the fronts of the main nozzles 03 to have openings at the axial position of the opening of the flame holding cone 014. As a result, a hot premixed flame 013 does not flow back to a main swirler zone 015 of the circumferential edges of the openings of the main nozzles 03 so that mixing between the fuel F and an air flow A can be improved, reducing the Nox emission while eliminating the burning of a base plate 04 and the main nozzles 03.

    摘要翻译： 燃烧器具有引导喷嘴02，其设置在内筒01的中心部分处，内筒01在其端部处开放到燃烧室018中，并且包括围绕其外圆周布置的多个主喷嘴03。 沿着用于点燃从主喷嘴03喷射的燃料F的火焰保持锥体014的外圆周，设置椭圆形截面形状的椭圆形延伸管016，其从主喷嘴03的前面延伸，以在轴向上具有开口 火焰保持锥体014的开口的位置。结果，热预混火焰013不流回到主喷嘴03的开口的周缘的主旋流器区域015，使得燃料F和 可以改善空气流A，减少Nox排放，同时消除基板04和主喷嘴03的燃烧。

    Gas turbine combustor
    10.
    发明授权
    Gas turbine combustor 有权
    燃气轮机燃烧器

    公开(公告)号：US06282886B1

    公开(公告)日：2001-09-04

    申请号：US09437146

    申请日：1999-11-10

    申请人： Yoshichika Sato ,  Yoji Kochi ,  Koichi Akagi ,  Kazuya Kobayashi ,  Koichi Nishida ,  Shinji Akamatsu ,  Hideki Haruta ,  Kotaro Miyauchi ,  Rintaro Chikami ,  Shigemi Mandai ,  Masataka Ota

    发明人： Yoshichika Sato ,  Yoji Kochi ,  Koichi Akagi ,  Kazuya Kobayashi ,  Koichi Nishida ,  Shinji Akamatsu ,  Hideki Haruta ,  Kotaro Miyauchi ,  Rintaro Chikami ,  Shigemi Mandai ,  Masataka Ota

    IPC分类号： F02C300

    CPC分类号： F23L7/00 ,  F23C9/00 ,  F23D2900/00008 ,  F23L2900/07002 ,  F23R3/005 ,  F23R3/14 ,  F23R3/343 ,  F23R3/60

    摘要： In a central portion of inner tube 28 of combustor 20, pilot fuel nozzle 22 and pilot cone 33 are arranged and main fuel nozzles 21 and main swirlers 32 therearound. Air intake portion (X-1) is provided with rectifier tube 11 for making air intake uniform. In air intake portion (X-2), air holes of appropriate number of pieces are provided in circumferential wall of the inner tube 28. In main swirler portion (X-3) and pilot cone portion (X-4), bolt joint of the main swirlers 32 is employed and optimized welded structure having less influence of thermal stress of the pilot swirler 33 is employed, respectively. Tail tube cooling portion (X-5) is provided with cooling structure having less influence of thermal stress to cool flange 71 portion of tail tube 24 uniformly. By the improvements in the portions (X-1) to (X-5), obstacles in attaining higher temperature in the combustor 20 is dissolved and combustor performance is enhanced.

    摘要翻译： 在燃烧器20的内管28的中心部分，引导燃料喷嘴22和引导锥体33布置，并且主燃料喷嘴21和主旋流器32在其周围。 进气部（X-1）设有用于使进气均匀的整流管11。 在进气部分（X-2）中，在内管28的周向壁上设有适当数量的气孔。在主旋流器部分（X-3）和先导锥体部分（X-4）中， 使用主旋流器32，并且分别采用对先导式旋流器33的热应力影响较小的优化焊接结构。 尾管冷却部（X-5）具有对热应力影响较小的冷却结构，均匀地冷却尾管24的凸缘部71。 通过部分（X-1）至（X-5）的改进，燃烧器20中获得较高温度的障碍物被溶解并且燃烧器性能提高。