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公开(公告)号：US07458770B2
公开(公告)日：2008-12-02
申请号：US11164603
申请日：2005-11-30
IPC分类号： F01D25/24
CPC分类号： F01D3/02 , F01D25/24 , F01D25/246 , F05D2220/31
摘要： The present invention provides a steam turbine that has upper and lower halves of diaphragm. The steam turbine of the present invention also provides an adjustable support bar attached to at least the upper half or the lower half of the diaphragm. The adjustable support bar of the present invention has a screw therein such that the adjustable support bar can raise or lower the upper half or the lower half of the diaphragm without removing each half of the diaphragm. Also provided are methods for adjusting and supporting a vertical position of the upper half and the lower half of the diaphragm at a horizontal split line in a steam turbine.
摘要翻译： 本发明提供一种具有隔膜的上半部和下半部的汽轮机。 本发明的蒸汽轮机还提供了一个可调节的支撑杆，该支撑杆至少连接到隔膜的上半部或下半部。 本发明的可调节支撑杆在其中具有螺钉，使得可调节支撑杆可以在不隔离隔膜的每一半的情况下升高或降低隔膜的上半部或下半部。 还提供了用于在蒸汽轮机中的水平分割线处调节和支撑隔膜的上半部和下半部的垂直位置的方法。
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公开(公告)号：US20080050222A1
公开(公告)日：2008-02-28
申请号：US11508170
申请日：2006-08-23
IPC分类号： F04D29/08
CPC分类号： F01D9/042 , F01D9/041 , F01D11/006 , F05D2230/232 , F05D2240/56
摘要： A singlet welded nozzle hybrid design that includes a singlet, that is, a single airfoil with respective inner and outer sidewall components. The outer sidewall component is received in a radial and circumferential groove of an outer carrier. The connection of the inner sidewall can be achieved by mechanically fitting and welded the inner sidewalls to either a seal carrier or a small ring, or a small radial weld may be provided between the sidewall endfaces of circumferentially adjacent singlets.
摘要翻译： 单线焊接喷嘴混合设计，其包括单线，即具有相应的内侧壁和外侧壁部件的单个翼型。 外侧壁部件被容纳在外部载体的径向和周向凹槽中。 内侧壁的连接可以通过将内侧壁机械地装配并焊接到密封载体或小环来实现，或者可以在周向相邻单体的侧壁端面之间提供小的径向焊缝。
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公开(公告)号：US07427187B2
公开(公告)日：2008-09-23
申请号：US11331024
申请日：2006-01-13
IPC分类号： F01D9/00
CPC分类号： F01D9/044 , F05D2230/232 , F05D2260/36
摘要： A steam turbine nozzle singlet having a blade or airfoil between inner and outer sidewalls is provided. The sidewalls include steps or flanges which are received in complementary recesses in the rings enabling axially short low heat input welds e.g., e-beam welds. These complementary steps and recesses mechanically interlock the singlet between the rings preventing displacement of the singlet in the event of weld failure. The low heat input welds minimize or eliminate distortion of the nozzle flow path. Additional features on the singlets, provide a datum for milling machines to form singlets of different sizes.
摘要翻译： 提供了在内侧壁和外侧壁之间具有叶片或翼型的汽轮机喷嘴单体。 侧壁包括台阶或法兰，其接收在环中的互补凹部中，使得能够进行短路的低热输入焊接，例如电子束焊接。 这些互补的步骤和凹部机械地联锁环之间的单线，防止在发生焊接故障时单线圈的位移。 低热输入焊缝使喷嘴流动路径的变形最小化或消除。 单板上的其他功能，为铣床提供了形成不同尺寸单体的基准。
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公开(公告)号：US08684697B2
公开(公告)日：2014-04-01
申请号：US12966476
申请日：2010-12-13
IPC分类号： F01D25/28
CPC分类号： F01D9/042
摘要： A steam turbine nozzle airfoil with integral inner and outer sidewalls is engaged with an inner ring and an outer ring in a nozzle assembly. Previous designs required large clearances between radial surfaces to permit simultaneous circumferential loading of the inner and outer sidewall into the inner and outer rings. The inventive arrangement provides for breech loading of the inner sidewall into the inner ring which allows near line-to-line radial contact on the hooks between the rings and the integral sidewalls of the Singlet nozzle airfoil. Tighter radial clearance overcome problems with loose assembly such as movement during welding, gaps leading to stress risers and performance issues associated with nozzle throat control.
摘要翻译： 具有整体内壁和外侧壁的汽轮机喷嘴翼型件与喷嘴组件中的内环和外环接合。 以前的设计需要径向表面之间的大间隙，以允许内侧壁和外侧壁同时周向地加载到内圈和外圈中。 本发明的装置提供了内侧壁进入内环的后膛加载，其允许在环之间的钩和单列喷嘴翼型的整体侧壁之间的近线对线的径向接触。 更紧密的径向间隙克服了松动组装的问题，例如焊接过程中的移动，导致应力梯度的间隙和与喷嘴喉部控制相关的性能问题。
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5.发明申请STEAM TURBINE SINGLET INTERFACE FOR MARGIN STAGE NOZZLES WITH PINNED OR BOLTED INNER RING 有权蒸汽涡轮机接口，用于带刺或内嵌环的舷梯公开(公告)号：US20120141260A1
公开(公告)日：2012-06-07
申请号：US12958807
申请日：2010-12-02
CPC分类号： F01D9/042
摘要： A steam turbine singlet nozzle airfoil with integral outer sidewall is engaged with an inner ring and an outer ring in a nozzle assembly. The interface of the outer sidewall with the outer ring may include a plurality of mechanical hooks on one or both of the upstream face and the outer radial face of the outer sidewall that engage with complimentary structures on the outer ring. The outer interface may further include low energy welds along limited distances of one or both of the upstream or downstream interface of the outer sidewall and the outer ring. An inner radial end of the singlet nozzle airfoil is pinned into position and fastened to the inner ring. Without a need for high heat welds, distortion of the airfoil and the steam flow path and the associated rework is eliminated and stage performance is improved.
摘要翻译： 具有整体外侧壁的蒸汽轮机单线喷嘴翼型件与喷嘴组件中的内环和外环接合。 外侧壁与外环的界面可以包括在外侧壁的上游面和外径向面中的一个或两个上与外环上的互补结构接合的多个机械钩。 外界面还可以包括沿着外侧壁和外环的上游或下游界面中的一个或两个的有限距离的低能量焊缝。 单列喷嘴翼型的内径向端部被固定到位并紧固到内圈。 不需要高热焊接，消除了翼型件和蒸汽流动路径的变形以及相关的返工，并且提高了工作台性能。
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公开(公告)号：US07104761B2
公开(公告)日：2006-09-12
申请号：US10900222
申请日：2004-07-28
IPC分类号： F01D5/28
CPC分类号： F01D5/147 , Y02T50/672 , Y10T29/49337
摘要： A method of manufacturing a blade for assembly on a steam turbine rotor wheel includes forming an airfoil portion with plural pockets and filling the pockets with more than one filler material chosen as a function of required temperature capability.
摘要翻译： 制造用于组装在蒸汽轮机转子轮上的叶片的方法包括：形成具有多个袋的翼型部分，并且根据所需的温度能力选择多种填充材料来填充袋。
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7.发明授权Steam turbine packing casing horizontal joint seals and methods of forming the seals 有权蒸汽涡轮机包装水平接头密封件和形成密封件的方法公开(公告)号：US06648332B1
公开(公告)日：2003-11-18
申请号：US10206827
申请日：2002-07-29
IPC分类号： F16J15447
CPC分类号： F01D11/02 , F01D11/003 , F01D11/005 , F01D25/246 , F16J15/0887 , F16J15/122
摘要： Spline seals are formed at the joints between packing casing shells in a steam turbine having high pressure and intermediate pressure turbine sections sealing between the high pressure and intermediate pressure regions on opposite axial sides of the packing casing. The spline seals extend in registering grooves from adjacent the seal segments of the rotor radially outwardly to adjacent axial load surfaces cooperable between the outer shell and the packing casing. The spline seals minimize or eliminate steam leakage paths through the horizontal joint of the packing casing shells.
摘要翻译： 花键密封件形成在具有高压和中压涡轮部分的蒸汽涡轮机中的包装壳体之间的接头处，该部分密封在包装壳体的相对轴向侧上的高压和中压区域之间。 花键密封件沿对准凹槽从转子的密封段径向向外延伸到在外壳和包装壳体之间配合的相邻的轴向载荷表面。 花键密封最小化或消除穿过包装壳体壳体的水平接头的蒸汽泄漏路径。
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公开(公告)号：US06506013B1
公开(公告)日：2003-01-14
申请号：US09561865
申请日：2000-04-28
IPC分类号： F01D514
CPC分类号： F01D5/186 , F01D5/188 , F05D2260/201 , F05D2260/202 , F05D2260/205 , F05D2260/2322
摘要： Turbine stator vane segments have radially inner and outer walls with vanes extending therebetween. The inner and outer walls are compartmentalized and have impingement plates. Steam flowing into the outer wall plenum passes through the impingement plate for impingement cooling of the outer wall upper surface. The spent impingement steam flows into cavities of the vane having inserts for impingement cooling the walls of the vane. The steam passes into the inner wall and through the impingement plate for impingement cooling of the inner wall surface and for return through return cavities having inserts for impingement cooling of the vane surfaces. At least one film cooling hole is defined through a wall of at least one of the cavities for flow communication between an interior of the cavity and an exterior of the vane. The film cooling hole(s) are defined adjacent a potential low LCF life region, so that cooling medium that bleeds out through the film cooling hole(s) reduces a thermal gradient in a vicinity thereof, thereby the increase the LCF life of that region.
摘要翻译： 涡轮机定子叶片段具有径向的内壁和外壁，叶片在其间延伸。 内壁和外壁分隔开并具有冲击板。 流入外壁集气室的蒸汽通过冲击板，用于外壁上表面的冲击冷却。 废冲击蒸汽流入具有用于冲击冷却叶片壁的插入件的叶片的空腔中。 蒸汽进入内壁并通过冲击板，用于内壁表面的冲击冷却，并通过具有用于叶片表面的冲击冷却的插入件的返回腔返回。 至少一个薄膜冷却孔通过至少一个空腔的壁限定，用于腔的内部和叶片的外部之间的流动连通。 膜冷却孔邻近潜在的低LCF寿命区限定，使得通过膜冷却孔渗出的冷却介质降低其附近的热梯度，从而增加该区域的LCF寿命 。
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公开(公告)号：US06435814B1
公开(公告)日：2002-08-20
申请号：US09571813
申请日：2000-05-16
申请人： Yufeng Phillip Yu , Gary Michael Itzel , Sarah Jane Osgood , Radhakrishna Bagepalli , Waylon Willard Webbon , Steven Sebastian Burdgick
发明人： Yufeng Phillip Yu , Gary Michael Itzel , Sarah Jane Osgood , Radhakrishna Bagepalli , Waylon Willard Webbon , Steven Sebastian Burdgick
IPC分类号： F01D904
CPC分类号： F02C7/18 , F01D5/189 , F05D2240/12 , F05D2240/81 , F05D2260/201 , F05D2260/205 , F05D2260/2212 , F05D2260/2322
摘要： Turbine stator vane segments have radially inner and outer walls with vanes extending between them. The inner and outer walls are compartmentalized and have impingement plates. Steam flowing into the outer wall plenum passes through the impingement plate for impingement cooling of the outer wall upper surface. The spent impingement steam flows into cavities of the vane having inserts for impingement cooling the walls of the vane. The steam passes into the inner wall and through the impingement plate for impingement cooling of the inner wall surface and for return through return cavities having inserts for impingement cooling of the vane surfaces. To provide for air film cooing of select portions of the airfoil outer surface, at least one air pocket is defined on a wall of at least one of the cavities. Each air pocket is substantially closed with respect to the cooling medium in the cavity and cooling air pumped to the air pocket flows through outlet apertures in the wall of the airfoil to cool the same.
摘要翻译： 涡轮机定子叶片段具有径向的内壁和外壁，叶片在它们之间延伸。 内壁和外壁分隔开并具有冲击板。 流入外壁集气室的蒸汽通过冲击板，用于外壁上表面的冲击冷却。 废冲击蒸汽流入具有用于冲击冷却叶片壁的插入件的叶片的空腔中。 蒸汽进入内壁并通过冲击板，用于内壁表面的冲击冷却，并通过具有用于叶片表面的冲击冷却的插入件的返回腔返回。 为了提供翼型件外表面的选定部分的空气膜冷却，至少一个气穴限定在至少一个空腔的壁上。 每个空气袋相对于空腔中的冷却介质基本封闭，并且泵送到空气袋的冷却空气流过翼型件的壁中的出口孔以使其冷却。
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10.发明授权Apparatus and methods for impingement cooling of an undercut region adjacent a side wall of a turbine nozzle segment 有权用于与涡轮喷嘴段的侧壁相邻的底切区域的冲击冷却的装置和方法公开(公告)号：US06331096B1
公开(公告)日：2001-12-18
申请号：US09543457
申请日：2000-04-05
IPC分类号： F01D2508
CPC分类号： F01D25/12 , F01D11/005 , F05D2240/81
摘要： A gas turbine nozzle segment has outer and inner bands. Each band includes a side wall, a cover and an impingement plate between the cover and nozzle wall defining two cavities on opposite sides of the impingement plate. Cooling steam is supplied to one cavity for flow through apertures of the impingement plate to cool the nozzle wall. The side wall of the band and inturned flange define with the nozzle wall an undercut region. The inturned flange has a plurality of apertures for directing cooling steam to cool the side wall between adjacent nozzle segments.
摘要翻译： 燃气涡轮喷嘴段具有外带和内带。 每个带包括在盖和喷嘴壁之间的侧壁，盖和冲击板，其在冲击板的相对侧上限定两个空腔。 冷却蒸汽被供应到一个空腔以流过冲击板的孔以冷却喷嘴壁。 带和内壁凸缘的侧壁限定了喷嘴壁的底切区域。 内翻法兰具有多个孔，用于引导冷却蒸汽冷却相邻喷嘴段之间的侧壁。
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