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公开(公告)号：US09347329B2
公开(公告)日：2016-05-24
申请号：US13614297
申请日：2012-09-13
摘要： A nozzle assembly is provided. The nozzle assembly includes at least one stationary nozzle. An outer ring having a predefined shape includes at least one groove defined therein and the groove is configured to receive at least a portion of the stationary nozzle therein. A coupling portion is formed integrally with the stationary nozzle or the outer ring such that the coupling portion extends outwardly therefrom. An attachment member is coupled to the coupling portion to facilitate substantially restricting movement of the stationary nozzle when the outer ring is substantially distorted.
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公开(公告)号：US20110052409A1
公开(公告)日：2011-03-03
申请号：US12550919
申请日：2009-08-31
CPC分类号： C22C19/03 , C22C19/05 , C22C19/051 , C22C19/056 , C22F1/10
摘要： A process and alloy for producing a turbine blade whose properties enable the blade to operate within a steam turbine at maximum operating temperatures of greater than 1300° F. (about 705° C.). The process includes casting the blade from a gamma prime-strengthened nickel-base superalloy having a composition of, by weight, 14.25-15.75% cobalt, 14.0-15.25% chromium, 4.0-4.6% aluminum, 3.0-3.7% titanium, 3.9-4.5% molybdenum, 0.05-0.09% carbon, 0.012-0.020% boron, maximum 0.5% iron, maximum 0.2% silicon, maximum 0.15% manganese, maximum 0.04% zirconium, maximum 0.015% sulfur, maximum 0.1% copper, balance nickel and incidental impurities, and an electron vacancy number of 2.32 maximum. The casting then undergoes a high temperature solution heat treatment to promote resistance to hold-time cracking. The blade exhibits a combination of yield strength, stress rupture properties, environmental resistance, and cost in steam turbine applications to 1400° F. (about 760° C.).
摘要翻译： 一种用于生产涡轮叶片的方法和合金，其特性使得叶片能够在大于1300°F（约705℃）的最大工作温度下在蒸汽轮机内工作。 该方法包括从具有14.25-15.75％的钴，14.0-15.25％的铬，4.0-4.6％的铝，3.0-3.7％的钛，3.9％的钴的重量组成的γ加强的镍基超级合金铸造该叶片， 4.5％钼，0.05-0.09％碳，0.012-0.020％硼，最大0.5％铁，最大0.2％硅，最大0.15％锰，最大0.04％锆，最大0.015％硫，最大0.1％铜，余量镍和附带 杂质，电子空位数最大为2.32。 然后铸造进行高温固溶热处理以促进耐久性开裂。 该叶片在1400°F（约760℃）下显示了汽轮机应用中的屈服强度，应力断裂性能，耐环境性能和成本的组合。
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公开(公告)号：US09109456B2
公开(公告)日：2015-08-18
申请号：US13282141
申请日：2011-10-26
CPC分类号： F01D5/3007 , F01D5/147 , F05D2220/31 , Y02T50/671
摘要： Embodiments of the present disclosure include a system having a turbine blade segment having a blade and a mounting segment coupled to the blade. The mounting segment is configured to couple to a slot in a rotor, and the mounting segment has a cavity extending radially into the mounting segment.
摘要翻译： 本公开的实施例包括具有涡轮叶片段的系统，其具有叶片和联接到叶片的安装段。 安装段被配置成耦合到转子中的槽，并且安装段具有径向延伸到安装段中的空腔。
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4.发明授权Methods and systems for assembling shrouded turbine bucket and tangential entry dovetail 失效装配涡轮叶轮和切向进入燕尾的方法和系统公开(公告)号：US07344359B2
公开(公告)日：2008-03-18
申请号：US11142292
申请日：2005-06-02
IPC分类号： F01D5/30
CPC分类号： F01D5/225 , F01D5/3046 , F05D2230/60 , Y02T50/671 , Y02T50/673
摘要： Rhombic shrouded tangential entry buckets are circumferentially applied to the rotor wheel rim of a turbine. A fixture is releasably secured to a lug on each bucket and includes a chamfered surface for engaging a complementary surface on the lug. Upon applying a tangential assembly force, the shroud and airfoil of adjacent buckets are pre-twisted in a rotational direction about a generally radial axis enabling dovetail faces to contact one another notwithstanding interference fit shroud contacting surfaces. The removal of the fixture from the lug enables the bias of the airfoil to rotate the shroud in an opposite direction into final assembly with the shroud edges of adjacent buckets in contact with one another and the dovetail faces thereof in contact with one another.
摘要翻译： 菱形护罩切向入口桶周向地施加到涡轮机的转子轮缘。 夹具可释放地固定到每个铲斗上的凸耳上，并且包括用于接合凸耳上的互补表面的倒角表面。 在施加切向组装力时，相邻铲斗的护罩和翼型围绕大致径向的轴线在旋转方向上被预扭转，使得燕尾面彼此接触，尽管具有过盈配合的护罩接触表面。 将固定装置从凸耳上拆下使得翼型件的偏压能使罩沿相反方向旋转成最终组装，相邻铲斗的护罩边缘彼此接触并且燕尾面彼此接触。
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5.发明授权公开(公告)号：US06190131B1
公开(公告)日：2001-02-20
申请号：US09386843
申请日：1999-08-31
IPC分类号： F01D2500
CPC分类号： F01D5/027 , F01D5/3015 , F01D11/02
摘要： Coverplates are disposed to axially overlie end faces of the shanks of buckets and the dovetail connections of the buckets within turbine wheel slots. The coverplates have axially projecting angel wing seals. The coverplates also have balance weights on axial faces thereof opposite the angel wing seals to balance out any bending moments applied to the coverplate resulting from centrifugal forces when the turbine rotor is at speed. Thus, the centers of gravity of the coverplates are located close to or in the plane of the coverplates. A centering slot is provided along an inner face of each dovetail connection for the coverplates. Coverplate retention pins reside in wide sub-slots at the bases of the wheel slots. When the coverplates are secured against axial movement, the retention pins engage in the centering slots of the coverplate dovetails to prevent circumferential movement of the retention pins in the wide sub-slots.
摘要翻译： 盖板布置成轴向覆盖在叶片柄的端面和叶轮在涡轮机叶轮槽内的燕尾连接。 盖板具有轴向突出的天使翼密封。 盖板还具有与天使翼密封相对的轴向面上的平衡重，以平衡当涡轮转子处于速度时由离心力引起的施加到盖板上的任何弯矩。 因此，覆盖板的重心位于盖板的平面附近或位于盖板的平面中。 沿着覆盖板的每个燕尾连接的内表面设置定心槽。 盖板固定销位于车轮槽底部的宽分槽中。 当盖板被固定抵抗轴向运动时，保持销接合在盖板燕尾形的定心槽中，以防止保持销在宽的副槽中周向运动。
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公开(公告)号：US20130108449A1
公开(公告)日：2013-05-02
申请号：US13282141
申请日：2011-10-26
IPC分类号： F01D5/30
CPC分类号： F01D5/3007 , F01D5/147 , F05D2220/31 , Y02T50/671
摘要： Embodiments of the present disclosure include a system having a turbine blade segment having a blade and a mounting segment coupled to the blade. The mounting segment is configured to couple to a slot in a rotor, and the mounting segment has a cavity extending radially into the mounting segment.
摘要翻译： 本公开的实施例包括具有涡轮叶片段的系统，其具有叶片和联接到叶片的安装段。 安装段被配置成耦合到转子中的槽，并且安装段具有径向延伸到安装段中的空腔。
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公开(公告)号：US20110036471A1
公开(公告)日：2011-02-17
申请号：US12898788
申请日：2010-10-06
申请人： Afina Lupulescu , Robert Edward Deallenbach , Robin Carl Schwant , Jeffrey Michael Breznak , Jeffrey Allen Hawk
发明人： Afina Lupulescu , Robert Edward Deallenbach , Robin Carl Schwant , Jeffrey Michael Breznak , Jeffrey Allen Hawk
CPC分类号： C22F1/10 , C22C19/05 , C22C19/055
摘要： A component made of an alloy including carbon at less than approximately 0.04 weight percent, manganese at about 0.0 to about 0.2 weight percent, silicon at about 0.0 to about 0.25 weight percent, phosphorus at about 0.0 to about 0.015 weight percent, sulfur at about 0.0 to about 0.015 weight percent, chromium from about 20.0 to about 23.0 weight percent, molybdenum from about 8.5 to about 9.5 weight percent, niobium from about 3.25 to about 4 weight percent, tantalum at about 0.0 to about 0.05 weight percent, titanium from about 0.2 to about 0.4 weight percent, aluminum from about 0.15 to about 0.3 weight percent, iron from about 3.0 to about 4.5 weight percent, and the remainder being nickel. The alloy may then be subjected to heat treatment procedures such as annealing at a temperature of less than approximately 982° C. and a duration of less than approximately one hour and aging at a temperature between approximately 538° C. and 760° C. and a duration of up to approximately 100 hours. Methods of treating an alloy are also disclosed.
摘要翻译： 由包含小于约0.04重量％的碳，约0.0至约0.2重量％的锰，约0.0至约0.25重量％的硅，约0.0至约0.015重量％的磷，约0.0至约0.015重量％的硫的合金制成的组分 约0.015重量％，约20.0至约23.0重量％的铬，约8.5至约9.5重量％的钼，约3.25至约4重量％的铌，约0.0至约0.05重量％的钽，约0.2重量％的钛 至约0.4重量％的铝，约0.15至约0.3重量％的铝，约3.0至约4.5重量％的铁，其余为镍。 然后可以对合金进行热处理程序，例如在小于约982℃的温度下退火并且持续时间小于约1小时，并在约538℃至760℃之间的温度下老化，以及 持续时间长达约100小时。 还公开了处理合金的方法。
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8.发明申请AIRFOILS FOR USE WITH TURBINE ASSEMBLIES AND METHODS OF ASSEMBLING THE SAME 审中-公开与涡轮组件一起使用的飞行器及其装配方法公开(公告)号：US20080089789A1
公开(公告)日：2008-04-17
申请号：US11550273
申请日：2006-10-17
IPC分类号： B64C11/04
CPC分类号： F01D5/225
摘要： A method for assembling a turbine assembly is provided. The method includes providing at least two buckets that each include an axial entry dovetail, a tip and an airfoil extending therebetween. The method also includes coupling the at least two buckets to a rotor wheel by inserting the axial entry dovetail into at least one complementary-configured mating dovetail slot defined in the rotor wheel, and coupling a bucket cover to the tip of the at least two buckets such that the bucket cover substantially circumscribes the rotor wheel in a continuous band.
摘要翻译： 提供一种用于组装涡轮组件的方法。 该方法包括提供至少两个铲斗，每个铲斗包括轴向入口燕尾榫，尖端和在它们之间延伸的翼型件。 该方法还包括通过将轴向入口燕尾插入限定在转子轮中的至少一个互补配置的配对燕尾槽中并将桶盖连接到至少两个桶的末端来将至少两个桶耦合到转子轮 使得铲斗盖基本上围绕转子轮在连续的带中。
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9.发明授权公开(公告)号：US06364613B1
公开(公告)日：2002-04-02
申请号：US09639046
申请日：2000-08-15
IPC分类号： F01D530
CPC分类号： F01D5/3053
摘要： A unique finger dovetail pin configuration is provided to attach the buckets of a control stage of a turbine to the rotor wheel. More particularly, as an embodiment of the invention, a bore is provided through the center of the pin to form a hollow pin. The primary benefit of providing a hollow pin configuration is that a passage is defined for the axial flow of steam through the dovetail attachment. For a control stage bucket, this axial flow is desirable to minimize the leakage of steam from the space between the first stage nozzle and bucket, and to provide a source of cooling flow to the forward side of the turbine wheel. Another benefit of the hollow pin is to facilitate removal of the pins when servicing of the high pressure rotor is required.
摘要翻译： 提供独特的手指燕尾针构造以将涡轮机的控制级的桶附接到转子轮。 更具体地，作为本发明的实施例，通过销的中心提供孔以形成中空销。 提供空心销构造的主要益处是为通过燕尾榫附件的蒸汽的轴向流动定义通道。 对于控制级斗，这种轴向流是期望的，以最小化来自第一级喷嘴和铲斗之间的空间的蒸汽的泄漏，并且向涡轮机叶轮的前侧提供冷却流源。 空心销的另一个好处是当需要维修高压转子时便于拆卸销。
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公开(公告)号：US08899933B2
公开(公告)日：2014-12-02
申请号：US13342555
申请日：2012-01-03
CPC分类号： F01D5/3038 , F01D5/225 , F01D5/32
摘要： A wheel dovetail groove with a wheel hook retains blade hooks of mounted blades. Opposed arcuate cut-outs in upper recessed areas of the groove may form an assembly gate. Blade hooks may be inserted into the groove in a first orientation, rotated to a second orientation at the assembly gate, and slid into a predetermined position. Blades may be secured with shims between adjacent bucket dovetails. Blade tip cover blocks may be included to form a cover. All blades may be substantially identical and not need special mounting arrangements at the assembly gate.
摘要翻译： 具有轮钩的轮燕尾槽保持安装刀片的刀片钩。 在槽的上部凹入区域中的相对的弧形切口可以形成组装门。 刀片钩可以在第一方向插入槽中，在装配门处旋转到第二方向，并滑入预定位置。 叶片可以用相邻的桶形燕尾榫之间的垫片固定。 可以包括刀片盖盖块以形成盖。 所有叶片可以是基本相同的，并且在组装门处不需要特殊的安装布置。
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