公开(公告)号：US10047865B2

公开(公告)日：2018-08-14

申请号：US14960961

申请日：2015-12-07

Applicant: General Electric Company

Inventor： Steven Sebastian Burdgick ,  James Royce Howes ,  Sean Christopher Morrissey ,  Xiaoqing Zheng

IPC: F01D11/00 ,  F01D5/02 ,  F16B3/04 ,  F01D11/02 ,  F16J15/3268 ,  F16J15/447 ,  F01D5/30

Abstract: Various embodiments include a rotor key member, along with a related assembly and steam turbine. Particular embodiments include a rotor key member for radially retaining a circumferential seal in a steam turbine rotor body, the rotor key member including: a main body sized to contact an axial face of the circumferential seal; and a hook extending from the main body in a direction axially away from the circumferential seal, the hook sized to substantially complement a corresponding shelf in the steam turbine rotor body to restrict movement of the circumferential seal relative to the steam turbine rotor body.

公开(公告)号：US20180003067A1

公开(公告)日：2018-01-04

申请号：US15397278

申请日：2017-01-03

Applicant: General Electric Company

Inventor： Rahul Anil Bidkar ,  Azam Mihir Thatte ,  Jifeng Wang ,  Xiaoqing Zheng ,  Edip Sevincer

IPC: F01D11/00 ,  F01D25/16 ,  F01D5/02 ,  F01D9/04 ,  F16J15/44

CPC classification number: F01D11/003 ,  F01D5/02 ,  F01D9/041 ,  F01D25/16 ,  F01D25/183 ,  F01D25/22 ,  F05D2220/32 ,  F05D2230/60 ,  F05D2240/55 ,  F16J15/342 ,  F16J15/3468 ,  F16J15/3488 ,  F16J15/442

Abstract: A turbomachine and a method of operating the turbomachine are disclosed. The turbomachine includes a stator, a rotor including a rotor bearing face, and a face seal assembly including a first segmented seal ring and a second segmented seal ring. The first segmented seal ring includes a plurality of joints and a first flat-contact surface and the second segmented seal ring includes a plurality of segment ends and a second flat-contact surface. One of the first and second segmented seal rings includes a seal bearing face. The second segmented seal ring is coupled to the first segmented seal ring such that the second flat-contact surface is in contact with the first flat-contact surface. The plurality of segment ends is circumferentially offset from the plurality of joints. The first segmented seal ring is slidably coupled to the stator and defines a face seal clearance between the rotor and seal bearing faces.

公开(公告)号：US09611749B2

公开(公告)日：2017-04-04

申请号：US14226617

申请日：2014-03-26

Applicant: General Electric Company

Inventor： Azam Mihir Thatte ,  Rahul Anil Bidkar ,  Xiaoqing Zheng

IPC: F01D11/00 ,  F01D1/04 ,  F01D25/22

CPC classification number: F01D11/001 ,  F01D1/04 ,  F01D11/003 ,  F01D25/22 ,  F05D2220/31

Abstract: Embodiments of the present disclosure are directed toward a stator ring configured to be disposed about a rotor of a turbine, wherein the stator ring comprises a plurality of hydrodynamic pads extending from a sealing face of the stator ring, wherein each of the plurality of hydrodynamic pads is configured to hydrodynamically engage with a rotor ring.

公开(公告)号：US09593589B2

公开(公告)日：2017-03-14

申请号：US14193077

申请日：2014-02-28

Applicant: General Electric Company

Inventor： Deepak Trivedi ,  Norman Arnold Turnquist ,  Xiaoqing Zheng ,  Murat Inalpolat

IPC: F01D11/22 ,  F01D25/16 ,  F16C41/00 ,  F01D21/08 ,  F16C17/04

CPC classification number: F01D11/22 ,  F01D3/00 ,  F01D17/26 ,  F01D21/08 ,  F01D25/16 ,  F16C17/04 ,  F16C41/004 ,  F16C2360/23

Abstract: An actuation system to control clearance in a turbomachine including a shaft bearing including at least one axially displaceable thrust bearing. The axially displaceable thrust bearing configured to axially displace a rotating component relative to a stationary component to control the clearance therebetween. The system further including a plurality of actuators coupled to the at least one axially displaceable thrust bearing and configured to actuate the at least one axially displaceable thrust bearing to control the clearance. The plurality of actuators is configured to deactivate a diametrically opposed actuator in the event of an actuator failure to maintain zero moment. In a topography network, each diametrically opposed actuator pair is coupled to a single control line. In an alternate topography network, alternating actuators are coupled to a single control line. In addition, a method of actuating a thrust bearing to control clearance in a turbomachine is disclosed.

Abstract translation: 一种用于控制涡轮机中的间隙的致动系统，包括具有至少一个可轴向移动的推力轴承的轴承座。 轴向移动推力轴承构造成相对于静止部件轴向移动旋转部件以控制它们之间的间隙。 所述系统还包括耦合到所述至少一个可轴向移动的推力轴承并被构造成致动所述至少一个可轴向移动的止推轴承以控制所述间隙的多个致动器。 多个致动器构造成在执行器失效以保持零时刻的情况下停用直径相对的致动器。 在地形网络中，每个直径相对的致动器对耦合到单个控制线。 在替代的地形网络中，交替的致动器耦合到单个控制线。 此外，公开了一种致动推力轴承以控制涡轮机中的间隙的方法。

公开(公告)号：US20170051620A1

公开(公告)日：2017-02-23

申请号：US15346001

申请日：2016-11-08

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Azam Mihir Thatte ,  Karimulla Shaik Sha ,  Rahul Anil Bidkar ,  Xiaoqing Zheng

IPC: F01D11/00

CPC classification number: F01D11/003 ,  F01D1/04 ,  F01D11/001 ,  F05D2220/31 ,  F05D2240/53 ,  Y02E20/16

Abstract: Embodiments of the present disclosure are directed toward a face seal including a stator ring configured to be disposed about a rotor of a turbine, wherein the stator ring includes a first ring segment and a second ring segment which are circumferentially split and configured to cooperatively form the stator ring, and bearing elements disposed between the first and second ring segments and configured to enable relative axial motion between the first and second ring segments at interfaces between the first and second ring segments. The stator ring further includes hydrodynamic surface features on surfaces of the first and second ring segments configured for facing the rotor, wherein the hydrodynamic surface features comprise Y-shaped grooves each comprising a stem portion extending from a middle region of stator ring and splitting into inner and outer branches extending towards inner and outer diameters of the stator ring and terminating prior to the inner and outer diameters.

Abstract translation: 本公开的实施例涉及一种面密封件，其包括构造成绕涡轮机的转子设置的定子环，其中定子环包括第一环段和第二环段，所述第一环段和第二环段周向地分开并构造成协同地形成 定子环和轴承元件，其设置在第一和第二环段之间并且被配置为使得能够在第一和第二环段之间的界面处的第一和第二环段之间的相对轴向运动。 定子环还包括在第一和第二环段的表面上的流体动力学表面特征，其被构造用于面向转子，其中流体动力学表面特征包括Y形槽，每个凹槽包括从定子环的中间区域延伸并分裂成内部 以及外分支延伸到定子环的内径和外径，并在内径和外径之前终止。

公开(公告)号：US20160298482A1

公开(公告)日：2016-10-13

申请号：US15188108

申请日：2016-06-21

Applicant: General Electric Company

Inventor： Xiaoqing Zheng ,  Bernard Arthur Couture, JR. ,  Michael John Bowman ,  William Edward Adis ,  Michael Dennis Mack ,  Kim James Clark

IPC: F01D11/12 ,  F16J15/3288

CPC classification number: F01D11/127 ,  F01D11/001 ,  F05D2220/31 ,  F05D2220/32 ,  F05D2240/56 ,  F16J15/3288 ,  Y02T50/672

Abstract: A seal includes a housing having a back plate and a front plate. A supporting bristle layer is disposed adjacent to the back plate, and bristles in the supporting bristle layer have a first diameter. A sealing bristle layer is disposed adjacent to the supporting bristle layer, and bristles in the sealing bristle layer have a second diameter. A shielding/protecting bristle layer is disposed adjacent to the sealing bristle layer, and bristles in the shielding/protecting bristle layer have a third diameter. The second diameter is smaller than both the first diameter and the third diameter.

Abstract translation: 密封件包括具有背板和前板的壳体。 支撑刷毛层设置成与背板相邻，并且支撑刷毛层中的刷毛具有第一直径。 密封刷毛层设置成与支撑刷毛层相邻，并且密封刷毛层中的刷毛具有第二直径。 屏蔽/保护刷毛层设置成与密封刷毛层相邻，并且屏蔽/保护刷毛层中的刷毛具有第三直径。 第二直径小于第一直径和第三直径。

公开(公告)号：US09394800B2

公开(公告)日：2016-07-19

申请号：US13745890

申请日：2013-01-21

Applicant: General Electric Company

Inventor： Xiaoqing Zheng ,  Jason Winfred Jewett ,  Richard James Miller, Jr.

IPC: F01D11/02 ,  F01D11/04 ,  F01D11/00 ,  F01D11/08

CPC classification number: F01D11/04 ,  F01D11/001 ,  F01D11/08 ,  F05D2240/11 ,  F05D2240/80

Abstract: Various embodiments include a turbomachine including a swirl-inhibiting seal. In various particular embodiments, a turbomachine includes: a rotor section having sets of axially disposed blades; a diaphragm section at least partially surrounding the rotor section, the diaphragm section including a set of nozzles positioned between adjacent sets of axially disposed blades, wherein the set of nozzles includes at least one nozzle having: a base section coupled to the diaphragm section; a blade coupled to the base section; and a radial tip section coupled to a radial end of the blade, the radial tip section including an axially extending flange having a slot extending therethrough for controlling fluid flow within the turbomachine.

Abstract translation: 各种实施例包括包括旋转抑制密封件的涡轮机。 在各种具体实施例中，涡轮机包括：具有一组轴向设置的叶片的转子部分; 至少部分地围绕所述转子部分的隔膜部分，所述隔膜部分包括位于相邻的轴向设置的叶片组之间的一组喷嘴，其中所述一组喷嘴包括至少一个喷嘴，所述喷嘴具有：联接到所述隔膜部分的基部; 叶片，其联接到所述基部; 以及联接到所述叶片的径向端部的径向末端部分，所述径向末端部分包括轴向延伸的凸缘，所述凸缘具有延伸穿过其中的狭槽，以控制所述涡轮机内的流体流动。

公开(公告)号：US09291066B2

公开(公告)日：2016-03-22

申请号：US14076925

申请日：2013-11-11

Applicant: General Electric Company

Inventor： Xiaoqing Zheng ,  Roderick Mark Lusted ,  Azam Mihir Thatte ,  Christopher David Suttles

IPC: F16J15/34 ,  F01D11/00

CPC classification number: F01D11/003 ,  F16J15/3436

Abstract: A hydrodynamic face seal ring for use in a rotary machine includes a support ring having at least two support ring segments and a radially-extending, first face. The support ring is configured to releasably couple to an inner surface of an outer casing of the rotary machine. The face seal ring also includes a sealing ring substantially concentric with the support ring. The sealing ring includes at least two sealing ring segments and a radially-extending, second face. The sealing ring is releasably coupled to the support ring such that the first face is mated against the second face.

Abstract translation: 用于旋转机器的流体动力面密封环包括具有至少两个支撑环段和径向延伸的第一面的支撑环。 支撑环构造成可释放地联接到旋转机器的外壳的内表面。 面密封环还包括与支撑环基本同心的密封环。 密封环包括至少两个密封环段和径向延伸的第二面。 密封环可释放地联接到支撑环，使得第一面与第二面配合。

公开(公告)号：US20160024954A1

公开(公告)日：2016-01-28

申请号：US14875726

申请日：2015-10-06

Applicant: General Electric Company

Inventor： Xiaoqing Zheng ,  Daniel Mark Brown ,  Jason Winfred Jewett ,  Fred Thomas Willett, JR.

IPC: F01D11/02 ,  F01D11/08

CPC classification number: F01D11/02 ,  F01D11/08 ,  F05D2220/32 ,  F05D2240/55 ,  F05D2250/191 ,  F05D2260/14 ,  F16J15/4472

Abstract: A seal assembly for sealing between a rotating component and a stationary component in a turbomachine. The seal assembly includes a plurality of radially inwardly projecting, axially spaced teeth extending from the stationary component, wherein at least one of the plurality of teeth has at least one axially extending hole therethrough. Axial flow of an operating fluid through the holes acts as an air-curtain to interrupt swirl flow in a seal cavity, therefore reducing steam force that could act to destabilize rotordynamics.

Abstract translation: 用于在涡轮机中的旋转部件和固定部件之间进行密封的密封组件。 密封组件包括从固定部件延伸的多个径向向内突出的轴向隔开的齿，其中多个齿中的至少一个齿具有穿过其中的至少一个轴向延伸的孔。 通过孔的工作流体的轴向流动用作气幕以阻止密封腔中的漩涡流动，因此减小了可能使动力学不稳定的蒸汽力。

公开(公告)号：US20150184529A1

公开(公告)日：2015-07-02

申请号：US14146292

申请日：2014-01-02

Applicant: General Electric Company

Inventor： Xiaoqing Zheng ,  Thomas Joseph Farineau ,  Sacheverel Quentin Eldrid ,  Jason L. Bowers

IPC: F01D9/04

CPC classification number: F01D9/045 ,  F01D5/08 ,  F01D9/06 ,  F01D9/065 ,  F01D11/003 ,  F01D11/005 ,  F01D11/02 ,  F01D25/12 ,  F01D25/24 ,  F05D2240/55 ,  Y10T29/49316

Abstract: A steam turbine is provided. The steam turbine includes a housing and a steam inlet configured to discharge a primary steam flow within the housing. A stator is coupled to the housing and a rotor is coupled to the housing and located within the stator. The rotor and the stator are configured to define a primary flow path there between and in flow communication with the primary steam flow. The steam turbine includes a seal assembly coupled to the housing. The seal assembly includes a packing head and a plurality of seals. The packing head is configured to define a cooling flow path in flow communication with the rotor and configured to discharge a cooling steam flow toward the rotor. An anti-swirl device is coupled to the seal assembly and located between the rotor and the packing head.

Abstract translation: 提供蒸汽轮机。 蒸汽轮机包括壳体和构造成排出壳体内的主蒸汽流的蒸汽入口。 定子联接到壳体并且转子联接到壳体并且定位在定子内。 转子和定子构造成在其间限定主流动路径，并与主蒸汽流动流动连通。 蒸汽轮机包括联接到壳体的密封组件。 密封组件包括密封头和多个密封件。 包装头构造成限定与转子流动连通的冷却流动路径，并且构造成朝向转子排放冷却蒸汽流。 防旋转装置联接到密封组件并且位于转子和包装头之间。