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。

    Burner for operating a heat generator
    7.
    发明授权
    Burner for operating a heat generator 有权
    燃烧器用于操作发热体

    公开(公告)号:US6027331A

    公开(公告)日:2000-02-22

    申请号:US187343

    申请日:1998-11-06

    摘要: In a burner for operating a combustion chamber, which burner essentially comprises a swirl generator (100), a transition piece (200) arranged downstream of the swirl generator, and a mixing tube (20), transition piece (200) and mixing tube (20) forming the mixing section of the burner and being arranged upstream of a combustion space (30). The swirl generator (100) itself comprises at least two hollow, conical sectional bodies (140, 141, 142, 143) which are nested one inside the other in the direction of flow, the respective center axes of these sectional bodies running mutually offset in such a way that the adjacent walls of the sectional bodies form inlet ducts (120), tangential in their longitudinal extent, for a combustion-air flow (115). In the region where the combustion-air flow (115) flows into the swirl generator (100), fuel injectors (116, 116a) are arranged on both sides along the inflow edges, which fuel injectors act offset with respect to one another, in such a way that the inflow cross section of the duct (120) is integrally covered with fuel, with the result that a maximized premixing is achieved.

    摘要翻译: 在用于操作燃烧室的燃烧器中,该燃烧器基本上包括涡旋发生器(100),设置在涡流发生器下游的过渡件(200)和混合管(20),过渡件(200)和混合管 20)形成燃烧器的混合部分并且布置在燃烧空间(30)的上游。 漩涡发生器(100)本身包括至少两个中空圆锥形截面体(140,141,142,143),它们沿流动方向嵌套在另一个中,这些截面体的相应中心轴线相互偏移 这样一种方式使得截面体的相邻壁形成对于燃烧空气流(115)在其纵向范围内切向的入口管道(120)。 在燃烧空气流(115)流入涡流发生器(100)的区域中,燃料喷射器(116,116a)沿着流入边缘布置在两侧,燃料喷射器相对于彼此偏移地起作用 这样使得管道(120)的流入横截面被燃料整体覆盖,结果实现了最大化的预混合。

    Burner for premixing combustion of a liquid and/or gaseous fuel
    8.
    发明授权
    Burner for premixing combustion of a liquid and/or gaseous fuel 失效
    燃烧器用于预防液体和/或气体燃料的燃烧

    公开(公告)号:US5244380A

    公开(公告)日:1993-09-14

    申请号:US844169

    申请日:1992-03-02

    摘要: In a burner for premixing-type combustion of a liquid and/or gaseous fuel, which essentially comprises hollow conical part-bodies (1, 2) positioned one upon the other, the center lines of which extend mutually offset in the longitudinal direction, whereupon tangential inlet openings (1b, 2b) are formed on both sides of the burner, a fuel (5a) is admixed to the combustion air (13) flowing into the interior (3) of the burner in that area. This admixture is accomplished via a number of nozzles (9, 10), which act in the region of the inlet openings (1b, 2b). The fuel through these nozzles is injected with a small spray cone angle in the longitudinal direction of the slot. The fuel vaporization takes place essentially only in the inlet openings of the burner, with the result that only a fuel vapor enters the interior (3). A further central nozzle (4) supplied with a liquid and/or gaseous fuel provides assistance in the form of a limit fuel quantity. The ignition of the mixture (4a, 5a, 13) takes place at the outlet of the burner, stabilization of the flame front (14) being brought about in the region of the burner aperture by a return flow zone (15).

    摘要翻译: 在用于液体和/或气体燃料的预混合燃烧的燃烧器中,其基本上包括一个彼此定位的中空圆锥形部分体(1,2),其中心线在纵向方向上相互偏移地延伸,于是, 切向入口开口(1b,2b)形成在燃烧器的两侧,燃料(5a)与流入燃烧器内部(3)的燃烧空气(13)相混合。 该混合物通过多个在入口(1b,2b)的区域中起作用的喷嘴(9,10)来实现。 通过这些喷嘴的燃料在槽的长度方向上以小的喷雾锥角注入。 燃料蒸发基本上仅在燃烧器的入口开口中发生,结果是只有燃料蒸汽进入内部(3)。 提供有液体和/或气体燃料的另一个中心喷嘴(4)以极限燃料量的形式提供帮助。 混合物(4a,5a,13)的点燃发生在燃烧器的出口处,火焰前沿(14)的稳定性通过返回流动区(15)进入燃烧器孔的区域。

    Pressure atomizer nozzle
    9.
    发明授权
    Pressure atomizer nozzle 失效
    压力雾化喷嘴

    公开(公告)号:US5934555A

    公开(公告)日:1999-08-10

    申请号:US811006

    申请日:1997-03-04

    摘要: A pressure atomizer nozzle comprises a nozzle body (30) in which is formed a turbulence and/or swirl chamber (39) and having a nozzle bore (33). At least one first feed channel (41, 41a) for the liquid (37) to be atomized connects to the chamber as a first feed stage for feeding said liquid (37) under pressure. At least one second feed channel (38) connects to the chamber as a second feed stage for feeding part of the liquid (37) to be atomized or for feeding a second liquid (37') to be atomized. The second feed channel feeds liquid into the chamber under pressure and with a swirl. The two stage pressure atomizer nozzle allows, for example, simple adaptation of the fuel spray cone angle to the respective operating conditions of a gas turbine burner.

    摘要翻译: 压力雾化喷嘴包括喷嘴主体(30),其中形成有湍流和/或涡流室(39)并具有喷嘴孔(33)。 用于待雾化的液体(37)的至少一个第一进料通道(41,41a)连接到室,作为用于在压力下进料所述液体(37)的第一进料级。 至少一个第二进料通道(38)作为第二进料级连接到所述室,用于进料待部分待雾化的液体(37),或供给待雾化的第二液体(37')。 第二进料通道在压力和旋流下将液体进料到室中。 两级压力雾化喷嘴允许例如简单地将燃料喷雾锥角适应于燃气轮机燃烧器的相应操作条件。

    Burner
    10.
    发明授权
    Burner 失效
    刻录机

    公开(公告)号:US5562441A

    公开(公告)日:1996-10-08

    申请号:US449868

    申请日:1995-05-24

    摘要: In a burner (100) which essentially comprises at least two hollow, conical sectional bodies (101, 102) nested one inside the other in the direction of flow, the respective longitudinal symmetry axes (101b, 102b) of the sectional bodies (101, 102) run mutually offset in such a way that the adjacent walls of the sectional bodies (101, 102) form air-inlet slots (119, 120), tangential in their longitudinal extent, for a combustion-air flow (115) in the interior space (114) of the burner. The cross section of flow of these tangential air-inlet slots (119, 120) decreases in the direction of flow of the burner (100) in such a way that this has a positive effect on stabilization of the backflow zone (106) at the outlet of the burner (100).

    摘要翻译: 在基本上包括沿着流动方向嵌套在另一个内的至少两个中空圆锥形截面体(101,102)的燃烧器(100)中,截面体(101,102)的相应的纵向对称轴(101b,102b) 102)相互偏移地运行,使得截面体(101,102)的相邻壁形成在其纵向范围内切向的空气入口槽(119,120),用于燃烧空气流(115) 燃烧器的内部空间(114)。 这些切向空气入口狭槽(119,120)的流动横截面在燃烧器(100)的流动方向上减小,使得这对于回流区域(106)的稳定性具有积极的影响 燃烧器(100)的出口。