Burner for operating an internal combustion engine, a combustion chamber
of a gas turbine group or firing installation
    1.
    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。

    Method of operating a premixing burner
    2.
    发明授权
    Method of operating a premixing burner 失效
    操作预混燃烧器的方法

    公开(公告)号:US5489203A

    公开(公告)日:1996-02-06

    申请号:US292268

    申请日:1994-08-18

    摘要: A premixing burner (X) which consists essentially of at least two hollow partial bodies (1, 2), which are positioned one above the other and whose center lines (1b, 2b) extend offset relative to one another in the longitudinal direction of the partial bodies (1, 2), is employed for hot gas generation, for example in a firing plant. Due to this offset, tangential inlet slots (21, 22) respectively occur through which a combustion airflow (15) flows into the internal space (14) of the premixing burner (X). Venturi mixers (32) with fuel nozzles (36), through which a fuel (31) is introduced into the combustion air (15) flowing past at this point, are arranged in the region of these tangential inlet slots (21, 22).

    摘要翻译: 一种预混合燃烧器(X),其基本上由至少两个中空部分体(1,2)组成,所述至少两个中空部分体(1,2)一个位于另一个之上并且其中心线(1b,2b)在其纵向方向上相对于彼此偏移地延伸 部分体(1,2)用于产生热气体,例如在燃烧装置中。 由于这种偏移,分别出现切向入口狭槽(21,22),燃烧气流(15)通过该入口狭槽流入预混合燃烧器(X)的内部空间(14)。 具有燃料喷嘴(36)的文丘里混合器(32)布置在这些切向入口狭槽(21,22)的区域中,燃料(31)通过该燃料喷嘴(36)引入到此时流过的燃烧空气(15)中。

    Combustion process for atmospheric combustion systems
    3.
    发明授权
    Combustion process for atmospheric combustion systems 失效
    大气燃烧系统的燃烧过程

    公开(公告)号:US5584684A

    公开(公告)日:1996-12-17

    申请号:US415210

    申请日:1995-03-31

    IPC分类号: F23C6/04 F23R3/34 F23Q9/00

    摘要: In the case of a heat generator which essentially consists of a premix burner (100) and a flame tube (1), the hot gases (10) from the combustion in the premix burner (100) are fed into the flame tube (1), and there undergo staged post-combustion. This post-combustion takes place by means of a first post-combustion stage (11) and a second post-combustion stage (12). The air/fuel mixture (11a, 12a) is provided for each post-combustion stage (11, 12) in individual mixers (200, 300). These mixers are arranged axially with respect to the flame tube (1) and work in such a way that injection of the corresponding mixture (11a, 12a) makes it possible to obtain different combustion zones which extend in a staged sequence over the flame tube (1). By virtue of this staged post-combustion mode NO.sub.x emissions can be reduced by a factor of 5 compared to conventional techniques.

    摘要翻译: 在基本由预混燃烧器(100)和火焰管(1)组成的发热体的情况下,来自预混合燃烧器(100)中的燃烧的热气体(10)被送入火焰管(1) ,并且分段后燃。 该后燃烧通过第一后燃烧阶段(11)和第二后燃烧阶段(12)进行。 为各个混合器(200,300)中的每个后燃烧级(11,12)设置空气/燃料混合物(11a,12a)。 这些混合器相对于火焰管(1)轴向地布置并且以这样的方式进行加工,使得相应的混合物(11a,12a)的注入使得可以获得在火焰管上分阶段延伸的不同燃烧区( 1)。 由于这种分段后燃烧模式,与常规技术相比,NOx排放可以降低5倍。

    Method of operating a plant with staged combustion
    4.
    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 premixing combustion of a liquid and/or gaseous fuel
    6.
    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。

    Premixing burner
    7.
    发明授权
    Premixing burner 失效
    预混燃烧器

    公开(公告)号:US5433596A

    公开(公告)日:1995-07-18

    申请号:US215252

    申请日:1994-03-21

    摘要: A premixing burner on the double-cone principle consists essentially of two hollow conical partial bodies (111, 112) which are interleaved in the flow direction and whose respective center lines (113, 114) are offset relative to one another. The adjacent walls of the two partial bodies form tangential gaps (20) in their longitudinal extent for the combustion air. Gas inlet openings (117) distributed in the longitudinal direction are provided in the walls of the two partial bodies. The air is guided into the tangential gaps (20) via vortex generators (9) of which a plurality are arranged adjacent to one another. The fuel is introduced into the gaps (20) in the immediate region of the vortex generators (9).Using the novel static mixer which the three-dimensional vortex generators represent, longitudinal vortices without recirculation region can be generated in the inlet gap through which flow occurs. It is therefore possible to achieve extraordinarily short mixing distances at the inlet to the burner with a small pressure loss at the same time.

    摘要翻译: 双锥体原理的预混合燃烧器基本上由两个中空圆锥形部分体(111,112)组成,它们在流动方向上交错并且其各自的中心线(113,114)相对于彼此偏移。 两个部分体的相邻壁在其燃烧空气的纵向范围内形成切向间隙(20)。 在两个部分体的壁上设置沿长度方向分布的气体入口(117)。 空气通过多个彼此相邻布置的涡流发生器(9)引导到切向间隙(20)中。 燃料被引入涡流发生器(9)的直接区域中的间隙(20)中。 使用三维涡流发生器所代表的新型静态混合器,可以在流动发生的入口间隙中产生不具有再循环区域的纵向旋涡。 因此,可以在燃烧器的入口处同时具有小的压力损失来实现非常短的混合距离。

    Gas turbine combustion chamber with two stages and enhanced acoustic
properties
    8.
    发明授权
    Gas turbine combustion chamber with two stages and enhanced acoustic properties 失效
    燃气轮机燃烧室具有两级和增强的声学特性

    公开(公告)号:US6050078A

    公开(公告)日:2000-04-18

    申请号:US965865

    申请日:1997-11-07

    CPC分类号: F23R3/42 F23R3/16 F05B2260/96

    摘要: In a combustion chamber, the hot gases are prepared sequentially via two stages (20, 40). Arranged at the end of the first stage (20) in the direction of flow is a cross-sectional constriction (30) via which the hot gases (21) prepared in the first stage (20) are passed over into the second stage (40). The Mach number at the outlet (31) of this cross-sectional constriction (30) corresponds to the area ratio of outlet area (A2) over inlet area (A1). This results in a low-reflection configuration in which low-frequency vibrations are absorbed to a significant extent. And acoustic energy reflected from the turbine is substantially reduced.

    摘要翻译: 在燃烧室中,依次通过两个阶段(20,40)制备热气体。 在第一阶段(20)结束时在流动方向上排列的是横截面收缩(30),第一阶段(20)中制备的热气体(21)通过该横截面收缩通过第二阶段(40) )。 该截面缩颈(30)的出口(31)处的马赫数对应于出口面积(A2)与入口面积(A1)的面积比。 这导致低反射配置,其中低频振动被很大程度地吸收。 并且从涡轮机反射的声能大大减小。

    Gas-turbine construction
    9.
    发明授权
    Gas-turbine construction 失效
    燃气轮机构造

    公开(公告)号:US06202402B1

    公开(公告)日:2001-03-20

    申请号:US09106095

    申请日:1998-06-29

    IPC分类号: F02C710

    CPC分类号: F23R3/40 F02C7/08 F23R3/005

    摘要: Described are a gas-turbine construction and a method of operating this gas-turbine construction, having an air compressor, a heat exchanger connected downstream of the air compressor, a combustion chamber, and a turbine which can be driven by hot combustion gases and from which the combustion gases are fed to the heat exchanger for heating the compressed supply air coming from the air compressor. The invention is distinguished by the fact that the heat exchanger and the combustion chamber are integrated in a common unit, and that fuel can be added to the supply air before entry into the unit, which fuel can be ignited catalytically in the form of an air/fuel mixture inside the unit, in which a catalyst is provided.

    摘要翻译: 描述了一种燃气轮机结构和操作该燃气轮机结构的方法,其具有空气压缩机,连接在空气压缩机下游的热交换器,燃烧室和能够被热燃烧气体驱动的涡轮机, 这些燃烧气体被供给到热交换器以加热来自空气压缩机的压缩空气。本发明的特征在于,热交换器和燃烧室集成在共同的单元中,并且可以添加燃料 在进入该单元之前的供给空气中,该燃料可以以单元内的空气/燃料混合物的形式催化地点燃,其中提供催化剂。

    Burner
    10.
    发明授权
    Burner 失效
    刻录机

    公开(公告)号:US5857846A

    公开(公告)日:1999-01-12

    申请号:US839645

    申请日:1997-04-15

    IPC分类号: F23D17/00

    CPC分类号: F23D17/00 F23D2209/20

    摘要: In a burner (1) for a heat generator, having a throughflow passage (3) for the throughflow of a combustion-air flow (12), a hentral main fuel lance (5) acts inside the said throughflow passage (3). A number of mixing elements (6) are arranged in an annular manner around this main fuel lance (5), and the remaining annular throughflow cross section is covered concentrically hereto by swirl generators. The mixing elements (6) are fed with a fuel (13a) and a partial combustion-air quantity (12a). The mode of operation of these mixing elements (6) corresponds to that of a pilot stage, whereby the flame stability is increased, while the NOx emissions remain at a low level.

    摘要翻译: 在用于热发生器的燃烧器(1)中,具有用于燃烧空气流(12)的通流的通流通道(3),中心主燃料喷枪(5)作用在所述通流通道(3)的内部。 多个混合元件(6)围绕该主燃料喷枪(5)以环形方式布置,并且剩余的环形通流横截面同心地被涡流发生器覆盖。 混合元件(6)被供给燃料(13a)和部分燃烧空气量(12a)。 这些混合元件(6)的操作模式对应于先导级的操作模式,由此在NOx排放保持在低水平的同时增加火焰稳定性。