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公开(公告)号：US06427435B1
公开(公告)日：2002-08-06
申请号：US09575415
申请日：2000-05-20
IPC分类号： F23R314
CPC分类号： F23R3/14 , F23C7/004 , Y02T50/675
摘要： A retainer segment is provided for a swirler assembly having first and second members, such as a primary and secondary swirler or a swirler body and floating ferrule, disposed in sliding engagement with each other. The two members are maintained in sliding engagement by two of the retainer segments which are joined to the second member and engage the first member. Each retainer segment is an arcuate member defining inner and outer curved edges and first and second ends. Each end has a concave cutout formed therein to reduce weld joint and bending stresses that occur from the forced vibration of the retainer segments.
摘要翻译： 为具有第一和第二构件的旋转器组件提供保持器段，所述第一和第二构件例如初级和次级旋流器或旋流器本体和浮动套圈彼此滑动配合设置。 两个构件通过两个保持器段保持滑动接合，该保持器段连接到第二构件并与第一构件接合。 每个保持器段是限定内弯曲边缘和外弯曲边缘以及第一和第二端部的弧形构件。 每个端部具有形成在其中的凹形切口以减少由保持器节段的强制振动发生的焊接接头和弯曲应力。
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公开(公告)号：US06212870B1
公开(公告)日：2001-04-10
申请号：US09158409
申请日：1998-09-22
IPC分类号： F23R314
CPC分类号： F23R3/283 , F23R3/14 , F23R3/60 , Y02T50/675
摘要： Assembly of the combustor dome in a gas turbine engine is facilitated by providing a self-fixturing configuration. The combustor dome assembly is made up of a dome plate having a plurality of swirler assemblies mounted therein. Each swirler assembly is provided with a locating pin that extends between the dome plate and the swirler assembly for positioning the swirler assembly with respect to the dome plate without the use of fixturing tools. Preferably, the swirler assembly includes a swirl cup and an outlet sleeve mounted in the dome plate. The locating pin is pressed into a hole formed in the swirl cup. One end of the pin is received in a slot formed in the dome plate, and the other end of the pin is received in a slot formed in the outlet sleeve. Thus, the locating pin sets the circumferential orientation of the swirler assembly in relation to the dome plate. A shoulder on the swirl cup sets the cup axially with respect to the dome plate, and a shoulder on the outlet sleeve sets the sleeve axially with respect to the swirl cup.
摘要翻译： 燃气涡轮发动机中的燃烧器穹顶的组装通过提供自固定构型而被促进。 燃烧器穹顶组件由安装在其中的多个旋流器组件的圆顶板构成。 每个旋流器组件设置有定位销，该定位销在圆顶板和旋流器组件之间延伸，用于相对于圆顶板定位旋流器组件而不使用夹具。 优选地，旋流器组件包括旋转杯和安装在圆顶板中的出口套筒。 定位销被压入形成在旋转杯中的孔中。 销的一端容纳在形成在圆顶板中的槽中，并且销的另一端容纳在形成在出口套筒中的槽中。 因此，定位销相对于圆顶板设置旋流器组件的圆周方向。 旋转杯上的肩部将杯子相对于圆顶板轴向设置，并且出口套筒上的肩部将套筒相对于旋转杯轴向设置。
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公开(公告)号：US06708498B2
公开(公告)日：2004-03-23
申请号：US10345603
申请日：2003-01-16
IPC分类号： F23R314
CPC分类号： F23R3/14
摘要： A swirl cup for a gas turbine engine combustor includes a tubular body having an inlet at one end for receiving a fuel injection nozzle, an outlet at an opposite end for discharging the fuel, and an annular septum therebetween. A row of first swirl vanes is attached to the septum adjacent the body inlet, and a row of second swirl vanes is attached to the septum adjacent the first swirl vanes and spaced upstream from the body outlet. Air from the first and second swirl vanes is swirled directly around the injected fuel without a flow barrier or venturi therebetween.
摘要翻译： 用于燃气涡轮发动机燃烧器的旋转杯包括管状体，其在一端具有用于接收燃料喷射喷嘴的入口，在相对端处用于排出燃料的出口以及其间的环形隔膜。 一排第一旋流叶片附着在邻近主体入口的隔膜上，并且一排第二旋流叶片附接到与第一旋流叶片相邻并且与身体出口上游隔开的隔膜。 来自第一和第二旋流叶片的空气直接绕喷射的燃料旋转，而在它们之间没有流动阻挡物或文氏管。
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公开(公告)号：US06240731B1
公开(公告)日：2001-06-05
申请号：US09001889
申请日：1997-12-31
IPC分类号： F23R314
CPC分类号： F23C7/004 , F23C6/045 , F23C7/02 , F23C2201/102 , F23D11/107 , F23D2206/10 , F23D2900/11101 , F23R3/06 , Y02E20/344
摘要： A method of combusting fuel in the combustor of a gas turbine engine is disclosed which includes injecting fuel and a first predetermined amount of airflow into the combustion chamber to form a fuel-rich, highly mixed, uniform distribution fuel-air spray pattern flowing downstream in the combustion chamber and introducing a second predetermined amount of airflow into the fuel air spray pattern from combustor air inlets positioned at a first predetermined distance downstream from the combustor dome with the first predetermined distance being greater than 0.75 times the dome height and said second predetermined amount of airflow being sufficient to cause rapid mixing and quenching of the rich fuel-air mixture to a lean fuel-air mixture. A combustor for a gas turbine engine is also disclosed which includes sidewalls and a dome wall to form a combustion chamber, a fuel injector/air swirler assembly for injecting a fuel air spray, a first and second array of air inlets for introducing airflow into the combustion chamber sufficient to cause rapid combustion and rapidly resulting lean-fuel air mixture, the first array being positioned a predetermined distance downstream from the dome wall with the predetermined distance being greater than 0.75 times the dome height and the second array of air inlets being positioned downstream from the first array.
摘要翻译： 公开了一种在燃气涡轮发动机的燃烧器中燃烧燃料的方法，其包括将燃料和第一预定量的气流喷射到燃烧室中以形成在下游流动的富燃料，高度混合均匀的分配燃料 - 空气喷雾图案 燃烧室，并且从位于燃烧器穹顶下游的第一预定距离处的燃烧器空气入口将第二预定量的气流引入燃料空气喷射图案，其中第一预定距离大于穹顶高度的0.75倍，并且所述第二预定量 的气流足以使富燃料 - 空气混合物快速混合并骤冷至贫燃料 - 空气混合物。 还公开了一种用于燃气涡轮发动机的燃烧器，其包括侧壁和用于形成燃烧室的圆顶壁，用于喷射燃料空气喷射的燃料喷射器/空气旋流器组件，用于将气流引入到空气入口中的第一和第二排空气入口 燃烧室足以引起快速燃烧和快速产生的稀燃燃料空气混合物，第一阵列定位在距圆顶壁下游一预定距离处，预定距离大于圆顶高度的0.75倍，第二阵列的空气入口被定位 从第一个阵列的下游。
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公开(公告)号：US06502399B2
公开(公告)日：2003-01-07
申请号：US09794134
申请日：2001-02-28
申请人： Shigemi Mandai , Masataka Ohta , Mitsuru Inada , Shinji Akamatsu
发明人： Shigemi Mandai , Masataka Ohta , Mitsuru Inada , Shinji Akamatsu
IPC分类号： F23R314
CPC分类号： F23R3/14
摘要： A pre-mixture forming swirler in a gas turbine pre-mixed flame type low NOx combustor is improved so as to accelerate mixing of fuel and air and to prevent the occurrence of flame stagnation and burning of components. In particular, a three-dimensional swirler is constructed such that each swirler vane is twisted from a hub side thereof to a tip side so that a fitting angle of the tip side relative to a center axis of a fuel nozzle is larger than an angle of the hub side. Thereby, while the angle of the hub side is set smaller so that flame stagnation and burning of components resulted therefrom may be prevented from occurring, the angle of the tip side may be selected so that the shearing flow necessary for appropriate mixing of fuel and air is obtained. Thus, favorable pre-mixing is achieved, life deterioration due to burning, etc., is prevented and combustion efficiency is enhanced.
摘要翻译： 在燃气轮机预混合火焰型低NOx燃烧器中形成旋流器的预混合物得到改善，以加速燃料和空气的混合，并防止部件火焰停滞和燃烧。 特别地，三维旋流器被构造成使得每个旋流器叶片从其轮毂侧扭转到尖端侧，使得尖端侧相对于燃料喷嘴的中心轴线的配合角度大于 集线器侧。 由此，在将轮毂侧的角度设定得较小的同时，能够防止由此引起的部件产生火焰停滞和燃烧的情况下，可以选择前端侧的角度，使得适当地混合燃料和空气所需的剪切流 获得。 因此，可以实现良好的预混合，防止燃烧等引起的寿命劣化，提高燃烧效率。
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6.发明授权Swozzle based burner tube premixer including inlet air conditioner for low emissions combustion 有权基于喷嘴的燃烧器管预混合器，包括用于低排放燃烧的入口空调公开(公告)号：US06438961B2
公开(公告)日：2002-08-27
申请号：US09811764
申请日：2001-03-20
申请人： Richard Sterling Tuthill , William Theodore Bechtel, II , Jeffrey Arthur Benoit , Stephen Hugh Black , Robert James Bland , Guy Wayne DeLeonardo , Stefan Martin Meyer , Joseph Charles Taura , John Luigi Battaglioli
发明人： Richard Sterling Tuthill , William Theodore Bechtel, II , Jeffrey Arthur Benoit , Stephen Hugh Black , Robert James Bland , Guy Wayne DeLeonardo , Stefan Martin Meyer , Joseph Charles Taura , John Luigi Battaglioli
IPC分类号： F23R314
CPC分类号： F23C7/004 , F23C2900/07001 , F23D14/02 , F23D2206/10 , F23D2900/14021 , F23M9/02
摘要： A burner for use in a combustion system of a heavy-duty industrial gas turbine includes a fuel/air premixer having an air inlet, a fuel inlet, and an annular mixing passage. The fuel/air premixer mixes fuel and air into a uniform mixture for injection into a combustor reaction zone. The burner also includes an inlet flow conditioner disposed at the air inlet of the fuel/air premixer for controlling a radial and circumferential distribution of incoming air. The pattern of perforations in the inlet flow conditioner is designed such that a uniform air flow distribution is produced at the swirler inlet annulus in both the radial and circumference directions. The premixer includes a swozzle assembly having a series of preferably air foil shaped turning vanes that impart swirl to the airflow entering via the inlet flow conditioner. Each air foil contains internal fuel flow passages that introduce natural gas fuel into the air stream via fuel metering holes that pass through the walls of the air foil shaped turning vanes. By injecting fuel in this manner, an aerodynamically clean flow field is maintained throughout the premixer. By injecting fuel via two separate passages, the fuel/air mixture strength distribution can be controlled in the radial direction to obtain optimum radial concentration profiles for control of emissions, lean blow outs, and combustion driven dynamic pressure activity as machine and combustor load are varied.
摘要翻译： 用于重型工业燃气轮机的燃烧系统的燃烧器包括具有空气入口，燃料入口和环形混合通道的燃料/空气预混合器。 燃料/空气预混合器将燃料和空气混合成均匀的混合物，用于注入燃烧器反应区。 燃烧器还包括设置在燃料/空气预混合器的空气入口处的入口流动调节器，用于控制进入空气的径向和周向分布。 入口流动调节器中的穿孔图案被设计成使得在径向和圆周方向上的旋流器入口环上产生均匀的气流分布。 预混合器包括具有一系列优选为空气箔形的转动叶片的喷嘴组件，该旋转叶片赋予经由入口流动调节器进入的气流涡流。 每个空气箔包含内部燃料流动通道，其通过燃烧计量孔将天然气燃料引入空气流中，所述燃料计量孔穿过所述翼状叶片的转动叶片的壁。 通过以这种方式喷射燃料，在整个预混合器中保持空气动力学清洁的流场。 通过经由两个独立的通道喷射燃料，燃料/空气混合物的强度分布可以在径向方向上被控制，以获得最佳径向浓度分布，用于控制排放，稀薄吹出和燃烧驱动的动态压力活动，因为机器和燃烧器负荷变化 。
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公开(公告)号：US06415610B1
公开(公告)日：2002-07-09
申请号：US09642462
申请日：2000-08-18
IPC分类号： F23R314
CPC分类号： F23R3/283 , F01D25/28 , F05B2260/301 , F23R3/60
摘要： A support member for removably supporting a swirler on a basket frame of a combustion gas turbine engine includes a plug removably mounted on the basket frame and a pin fixedly mounted on the swirler. A mechanical lock detachably connects the plug and the pin with one another, and the mechanical lock may include cooperating threads or other appropriate structures. The swirler is removed from the basket frame by detaching the plug from the basket frame, disconnecting the plug from the pin, and sliding the swirler longitudinally along its own axis whereby the pin clears the mounting hole within which the plug was mounted.
摘要翻译： 用于可拆卸地支撑燃烧燃气涡轮发动机的筐架上的旋流器的支撑构件包括可移除地安装在筐架上的塞子和固定地安装在旋流器上的销。 机械锁可拆卸地将插头和销彼此连接，并且机械锁可以包括协作螺纹或其它合适的结构。 通过从筐框架上拆下插头，将插头从销上拆下，并沿着其自身的轴线纵向滑动旋流器，从而将旋流器从篮框架中取出，由此销钉清除了安装插头的安装孔。
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公开(公告)号：US06684640B2
公开(公告)日：2004-02-03
申请号：US10036101
申请日：2001-10-22
IPC分类号： F23R314
CPC分类号： F23R3/286 , F23D2900/14701 , F23R3/12 , F23R2900/00002
摘要： A gas-fuelled burner, especially for gas turbines powered by low calorific value fuel, is provided with restrictors to slow the incoming fuel from inlets to a similar mass mean velocity as the air provided through inlets, thereby reducing turbulence and improving combustion. The restrictors and outlet passages carrying the fuel to the combustion pre-chamber are located in vanes of a radial inlet swirler so as to alternate with the air inlets. The geometry is such that the respective flows emerge tangentially to a notional circle centered on the combustion pre-chamber of the turbine. The circle is preferably between 0.7 and 1.0 times the diameter of the actual pre-chamber. The ratio of the area of the restrictor to that of the outlet passage may lie between 1:1.1 and 1:1.7, preferably 1:1.4.
摘要翻译： 特别是用于由低热值燃料供给的燃气轮机的气体燃料燃烧器设置有限制器，以将进入的燃料从入口减慢到与通过入口提供的空气相似的质量平均速度，从而减少湍流并改善燃烧。 将燃料输送到燃烧预燃室的限流器和出口通道位于径向入口旋流器的叶片中，以与空气入口交替。 几何形状使得相应的流动与以涡轮机的燃烧预制室为中心的概念圆相切地出现。 该圆的最好是实际预制腔的直径的0.7到1.0倍。 限流器的面积与出口通道的面积之比可以在1:1.1与1:1.7之间，优选为1:1.4之间。
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公开(公告)号：US06662565B2
公开(公告)日：2003-12-16
申请号：US09982776
申请日：2001-10-22
IPC分类号： F23R314
CPC分类号： F23R3/343 , F23D11/107 , F23D2900/11101
摘要： A duplex fuel injector has concentric arrangement of an inner air swirler, an inner fuel injection port, an intermediate axial air filmer, a second air swirler, an outer fuel injection port and an outer air swirler. The intermediate air filmer produces a curtain of air separating an outer air and fuel spray from an inner air and fuel spray. The outer spray is used in a pilot combustion zone whereas the inner spray is used in a main combustion zone.
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公开(公告)号：US06655145B2
公开(公告)日：2003-12-02
申请号：US10027305
申请日：2001-12-20
申请人： Gregory A. Boardman
发明人： Gregory A. Boardman
IPC分类号： F23R314
摘要： A fuel nozzle for a gas turbine engine injects a liquid fuel flow from a liquid fuel passage in the swirler vane. An air flow over the swirler vane atomizes the liquid fuel flow to form a fuel air mixture. The fuel nozzle eliminates the need for a conventional air blast atomizer.
摘要翻译： 用于燃气涡轮发动机的燃料喷嘴从旋流叶片中的液体燃料通道喷射液体燃料流。 旋流器叶片上的气流使液体燃料流雾化，形成燃料空气混合物。 燃料喷嘴消除了对常规气吹雾化器的需要。
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