Arrangement for damping combustion-chamber oscillations
    1.
    发明授权
    Arrangement for damping combustion-chamber oscillations 失效
    阻尼燃烧室振荡的布置

    公开(公告)号:US6164058A

    公开(公告)日:2000-12-26

    申请号:US111779

    申请日:1998-07-08

    摘要: In an annular combustion chamber for a gas turbine, a combustion-chamber dome (14) is arranged upstream of an air-cooled combustion chamber (10). A first portion of an air flow (46) which comes from the compressor is admixed as combustion air to the combustion operation and cooling ducts (22; 24) feed a second portion of the air flow (46) coming from the compressor as cooling air into the combustion chamber (10). In this case, the cooling ducts (22; 24), which run at least in sections along the combustion chamber (10), have an entry (23; 25) into the combustion-chamber dome (14). The cooling ducts (22; 24) are designed for damping combustion-chamber oscillations in such a way that the acoustic impedance at the entry (23; 25) of the cooling ducts (22; 24) into the combustion-chamber dome (14) is minimized.

    摘要翻译: 在用于燃气轮机的环形燃烧室中,燃烧室拱顶(14)布置在空气冷却燃烧室(10)的上游。 将来自压缩机的空气流(46)的第一部分作为燃烧空气混合到燃烧操作中,冷却管道(22; 24)将来自压缩机的空气流(46)的第二部分作为冷却空气 进入燃烧室(10)中。 在这种情况下,至少沿着燃烧室(10)的部分运行的冷却管道(22; 24)具有进入燃烧室拱顶(14)的入口(23; 25)。 冷却管道(22; 24)设计成用于阻止燃烧室振荡,使得冷却管道(22; 24)入口(23; 25)入口(29; 25)内的声阻抗进入燃烧室穹顶(14) 被最小化。

    Burner for operating an internal combustion engine, a combustion chamber
of a gas turbine group or firing installation
    2.
    发明授权
    Burner for operating an internal combustion engine, a combustion chamber of a gas turbine group or firing installation 失效
    用于操作内燃机的燃烧器,燃气轮机组的燃烧室或点火装置

    公开(公告)号:US5375995A

    公开(公告)日:1994-12-27

    申请号:US181438

    申请日:1994-01-14

    CPC分类号: F23D17/002 F23C2900/07002

    摘要: In a double-cone burner, at least one row of nozzles (10) for a gaseous fuel containing highly reactive components and having a medium calorific value are arranged on the periphery of the partial conical bodies (1, 2) of the burner near the burner outlet at a distance of approximately 30% of the nominal burner diameter. In addition, there is a fuel conduit (11) and a distributing passage (17), placed in the region of the nozzles (10), for the highly reactive fuel. The gaseous fuel (15) containing highly reactive components is injected at high velocity through the nozzles (10), which have a diameter which is smaller than 1% of the nominal burner diameter, into the zones of high air velocity and the penetration depth and the direction of the fuel jets are matched to one another in such a way that ignition only takes place behind the burner, after mixing has occurred.

    摘要翻译: 在双锥形燃烧器中,用于含有高反应性组分并具有中等热值的气态燃料的至少一排喷嘴(10)布置在燃烧器附近的燃烧器的部分圆锥体(1,2)的周边上 燃烧器出口距离标称燃烧器直径的约30%。 此外,在喷嘴(10)的区域中,存在用于高反应性燃料的燃料导管(11)和分配通道(17)。 含有高反应性组分的气体燃料(15)通过直径小于标称燃烧器直径的1%的喷嘴(10)以高速喷射到高空气速度和穿透深度的区域中, 燃料喷嘴的方向彼此匹配,使得在发生混合之后点燃仅发生在燃烧器后面。

    Burner
    3.
    发明授权
    Burner 失效
    刻录机

    公开(公告)号:US5738508A

    公开(公告)日:1998-04-14

    申请号:US597029

    申请日:1996-02-05

    摘要: In a burner (1) for heat generation, the inflowing air (4) is first of all directed into a hollow conical swirl generator (3) which is surrounded by a mixing tube (2). This swirl generator (3) tapers in the direction of flow in such a way that a hollow cone results therefrom. Furthermore, the swirl generator (3) has tangential openings (6, 7) in the direction of flow, which are preferably designed as ducts through which the combustion air (5) flows out of the hollow space (16) into the mixing tube (2). In the region of the tangential openings (6, 7), nozzles (12, 13) are provided through which a fuel (14) is injected into the combustion air (5) flowing past there. A fuel, whether liquid or gaseous, may be supplied by further means in operative connection with the burner (1).

    摘要翻译: 在用于发热的燃烧器(1)中,流入的空气(4)首先被引导到由混合管(2)包围的中空圆锥形涡流发生器(3)中。 该涡流发生器(3)沿着流动方向逐渐变细,从而导致中空圆锥。 此外,涡流发生器(3)在流动方向上具有切向开口(6,7),其优选地被设计为管道,燃烧空气(5)通过该管道从中空空间(16)流出到混合管( 2)。 在切向开口(6,7)的区域中,提供喷嘴(12,13),通过该喷嘴将燃料(14)注入到流过那里的燃烧空气(5)中。 可以通过与燃烧器(1)可操作连接的另外的装置来供应无论是液体还是气体的燃料。

    Premix burner
    4.
    发明授权
    Premix burner 失效
    预混燃烧器

    公开(公告)号:US5791894A

    公开(公告)日:1998-08-11

    申请号:US747569

    申请日:1996-11-12

    摘要: In a premix burner having a swirl-stabilizing interior space (20) which is essentially formed by sectional shells (11, 12) nested one inside the other in a mutually offset manner as well as by a conically running inner body (13), one feed duct (11c, 12c) each extends upstream of the tangential air-inlet slots (11a, 12a) formed by the offset sectional shells, which feed duct (11c, 12c) is fitted at least with means (11d, 12d) for swirling an air flow (23) and with means for introducing a fuel (24). The introduction of the fuel is preferably arranged downstream of the means for swirling the air flow.

    摘要翻译: 在具有旋转稳定的内部空间(20)的预混合燃烧器中,所述旋转稳定内部空间(20)基本上由相互偏移的方式嵌套在另一个内部以及由圆锥形运行的内部主体(13)嵌套的截面壳体(11,12)形成, 进料管道(11c,12c)各自在由偏移截面壳体形成的切向进气狭槽(11a,12a)的上游延伸,进料管道(11c,12c)至少装配有用于旋转的装置(11d,12d) 空气流(23)和用于引入燃料(24)的装置。 燃料的引入优选地布置在用于旋转空气流的装置的下游。

    Method of operating a plant with staged combustion
    5.
    发明授权
    Method of operating a plant with staged combustion 失效
    操作具有分段燃烧的设备的方法

    公开(公告)号:US5918457A

    公开(公告)日:1999-07-06

    申请号:US654119

    申请日:1996-05-28

    CPC分类号: F23C6/042

    摘要: In a method of operating a plant with staged combustion, the first combustion stage (1a) is operated with a fuel/air mixture (3) whose air coefficient is larger than the overall air coefficient of the combustion system. The hot combustion gases (5) from the first combustion stage (1a) are mixed with an additional fuel/air mixture (4) whose air coefficient is smaller than the overall air coefficient of the combustion system, before the further combustion in the second stage (2a) takes place. Since hot-gas backmixing is no longer required in the second stage (2a) for the flame stabilization, this combined mixture burns without the formation of further NOx emissions.

    摘要翻译: 在操作具有分段燃烧的设备的方法中,第一燃烧阶段(1a)与空气系数大于燃烧系统的总体空气系数的燃料/空气混合物(3)一起操作。 来自第一燃烧阶段(1a)的热燃烧气体(5)与第二阶段进一步燃烧之前的空气系数小于燃烧系统的总体空气系数的附加燃料/空气混合物(4)混合 (2a)发生。 由于在第二阶段(2a)中不再需要热气回混用于火焰稳定化,所以该组合混合物燃烧而不形成进一步的NOx排放。

    Fluid mixing device with vortex generators
    9.
    发明授权
    Fluid mixing device with vortex generators 失效
    具有涡流发生器的流体混合装置

    公开(公告)号:US5803602A

    公开(公告)日:1998-09-08

    申请号:US744270

    申请日:1996-11-06

    IPC分类号: B01F5/00 B01F5/06

    摘要: A mixing device for mixing two or more flowing fluids in a flow duct in which the fluids to be mixed flow along a dividing wall (22), includes a plurality of vortex generators mounted on a downstream end of the dividing wall. The vortex generators (9) have surfaces which project into the duct, and around which flow occurs freely. Each vortex generator includes two side surfaces connected at a lead connecting edge which stands perpendicularly to the dividing wall (22) and is the edge acted upon first by the flow. A top surface consists of two sectional top surfaces (1, 2) which are connected to one another via a top connecting edge (10). Downstream rear edges (5, 6) of the sectional top surfaces (1, 2) are oriented at an angle (.gamma.) with the dividing wall (22), as a result of which, the the rear edges (5, 6) lie on an opposite side of the dividing wall (22)), with respect to the side surfaces (11, 13). A base surface consists of two sectional base surfaces which are connected to one another by a base connecting edge and to the sectional top surfaces by the rear edges (5, 6).

    摘要翻译: 一种混合装置,用于将待混合的流体沿着分隔壁(22)流动的流动管道中的两个或多个流动流体混合,包括安装在分隔壁的下游端的多个涡流发生器。 涡流发生器(9)具有突出到管道中的表面,并且自由地发生流体。 每个涡流发生器包括连接在垂直于分隔壁(22)的引导连接边缘处的两个侧表面,并且其边缘首先由流动起作用。 顶表面由两个通过顶部连接边缘(10)彼此连接的截面顶表面(1,2)组成。 截面上表面(1,2)的下游后边缘(5,6)以分隔壁(22)成角度(γ)定向,其结果是后边缘(5,6)位于 在分隔壁(22)的相对侧上,相对于侧表面(11,13)。 基座表面由两个截面底面组成,它们通过基座连接边缘彼此连接,并由后边缘(5,6)连接到截面顶表面。