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公开(公告)号：US08490981B2
公开(公告)日：2013-07-23
申请号：US12710443
申请日：2010-02-23
IPC分类号： F16J15/44
CPC分类号： F16J15/3288
摘要： A brush seal, brush seal segment, and brush seal backplate for use in a rotary device are provided. In one embodiment, the invention provides a brush seal for a rotary device, the brush seal comprising: a plurality of brush seal segments, each segment including: an arcuate fence; an arcuate backplate circumferentially coextensive with the arcuate fence, the arcuate backplate including: a plurality of circumferentially-oriented cavities; a first dam along a first end of the arcuate backplate, the first dam substantially closing an end of at least one of the plurality of circumferentially-oriented cavities; and a second dam along a second end of the arcuate backplate, the second dam substantially closing an end of at least one of the plurality of circumferentially-oriented cavities; a plurality of brush bristles between the arcuate backplate and the arcuate fence; and a static member to which at least one of the plurality of brush seal segments is affixed.
摘要翻译： 提供用于旋转装置的刷子密封件，刷子密封部分和刷子密封背板。 在一个实施例中，本发明提供了一种用于旋转装置的刷子密封件，刷子密封件包括：多个刷子密封段，每个部分包括：弓形围栏; 弧形背板与弓形围栏周向共同延伸，弧形背板包括：多个周向定向的空腔; 沿所述弓形背板的第一端的第一坝，所述第一坝基本上封闭所述多个周向定向的空腔中的至少一个的端部; 以及沿着所述弓形背板的第二端的第二坝，所述第二坝基本上封闭所述多个周向定向的空腔中的至少一个的端部; 在弓形背板和弧形围栏之间的多个刷毛; 以及固定所述多个刷子密封段中的至少一个的静止部件。
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公开(公告)号：US08480352B2
公开(公告)日：2013-07-09
申请号：US12821386
申请日：2010-06-23
IPC分类号： F01D3/00 , F04D29/041
CPC分类号： F01D11/025 , F01D3/02 , F01D3/04 , F05D2220/31 , F05D2270/3015
摘要： A system controls net thrust of a steam turbine having a stepped rotating shaft. A first leak off line fluidly couples a first stage of a turbine section to a packing upstream of a stepped portion on the rotating shaft. A second leak off line fluidly couples a second stage of the turbine section that is subsequent to the first stage to a step area upstream of the stepped portion, and a connection line fluidly couples the first leak off line to the second leak off line. The lines include control valves such that a controller can actively control the net thrust by regulating thrust pressure on the stepped portion using steam from the first and second stages of the turbine section. The controller may also prevent damage to an active retractable seal using the control valves.
摘要翻译： 系统控制具有阶梯式旋转轴的汽轮机的净推力。 第一泄漏线将涡轮部分的第一级与旋转轴上的阶梯部分的上游流体地联接。 第二泄漏线将第一阶段之后的涡轮部分的第二级流体地连接到台阶部分的上游的台阶区域，并且连接线将第一泄漏线路流体地耦合到第二泄漏线。 这些管线包括控制阀，使得控制器可以通过使用来自涡轮部分的第一和第二级的蒸汽来调节阶梯部分上的推力来主动地控制净推力。 控制器还可以使用控制阀防止对活动的可缩回密封件的损坏。
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公开(公告)号：US08459653B2
公开(公告)日：2013-06-11
申请号：US12940220
申请日：2010-11-05
申请人： Xiaoqing Zheng
发明人： Xiaoqing Zheng
CPC分类号： F01D11/003 , F05D2240/55 , F05D2240/56 , F16J15/442
摘要： The present application provides a sealing assembly for use between a first component and a second component of a rotary machine. The sealing assembly may include a first sealing segment having a first end with a first angled surface and a second sealing segment having a second end with a second angled surface. The first angled surface of the first end of the first sealing segment meets the second angled surface of the second end of the second sealing segment at a joint.
摘要翻译： 本申请提供了一种用于旋转机器的第一部件和第二部件之间的密封组件。 密封组件可以包括具有第一端和第二倾斜表面的第一密封段和具有第二倾斜表面的第二端的第二密封段。 第一密封段的第一端的第一倾斜表面在接头处与第二密封段的第二端的第二倾斜表面相交。
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公开(公告)号：US20130058765A1
公开(公告)日：2013-03-07
申请号：US13227218
申请日：2011-09-07
申请人： Xiaoqing Zheng , Bernard Arthur Couture, JR. , Mehmet Demiroglu , Gregory Leonard Diantonio , Daniel Edward Jordy
发明人： Xiaoqing Zheng , Bernard Arthur Couture, JR. , Mehmet Demiroglu , Gregory Leonard Diantonio , Daniel Edward Jordy
CPC分类号： F16J15/442 , F01D11/001 , F01D11/003 , F01D11/025
摘要： Systems and devices for substantially fluidly isolating portions of a rotary machine are disclosed. In one embodiment, a seal assembly for a rotary machine includes: a complementary set of seal segments configured relative one another so as to form a substantially continuous body with butt gaps between the seal segments, the segments including: a head flange; and an axial neck connected to the head flange, wherein the axial neck extends radially inboard and includes an axial slot formed substantially there through; and at least one butt gap seal element, wherein the at least one butt gap seal element includes an axial flange and a radial flange, the axial flange disposed within the axial slots of adjacent seal segments; and the radial flange extending radially inboard from the axial slots to a proximity of the rotary machine substantially forming a barrier to axial flow through the butt gap.
摘要翻译： 公开了用于基本上流体地隔离旋转机器的部分的系统和装置。 在一个实施例中，用于旋转机器的密封组件包括：彼此相对配置的互补的一组密封段，以便在密封段之间形成具有对接间隙的基本上连续的主体，所述段包括头部凸缘; 以及连接到所述头部凸缘的轴向颈部，其中所述轴向颈部径向向内延伸并且包括基本上在其上形成的轴向槽; 和至少一个对接间隙密封元件，其中所述至少一个对接间隙密封元件包括轴向凸缘和径向凸缘，所述轴向凸缘设置在相邻密封段的轴向槽内; 并且从轴向槽径向向内延伸到旋转机器附近的径向凸缘基本上形成穿过对接缝隙的轴向流动的屏障。
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公开(公告)号：US20130043658A1
公开(公告)日：2013-02-21
申请号：US13209668
申请日：2011-08-15
IPC分类号： F16J15/44
CPC分类号： F01D11/127 , F02C7/28 , F05D2240/56 , F16J15/3288
摘要： A brush seal assembly is provided, including a sealing surface, a side plate, a backing plate, a plurality of bristles, and a biasing member. The backing plate is selectively located in a stationary position and has at least one backing tooth and a backing tip. The backing tooth has a tooth surface and the backing tip has a tip surface. A tooth clearance is measured between the tooth surface and the sealing surface. A tip clearance is measured between the tip surface and the sealing surface. The tooth clearance is less than the tip clearance. The bristles are located between the side plate and the backing plate. The bristles include an end portion for sealing to the sealing surface. The biasing member exerts a biasing force upon the backing plate in a direction towards the sealing surface. The backing tooth is configured for selectively contacting the sealing surface.
摘要翻译： 提供了一种刷密封组件，其包括密封表面，侧板，背板，多个刷毛和偏置构件。 背板选择性地位于固定位置并且具有至少一个背衬齿和背衬尖端。 背衬齿具有齿面并且背衬尖端具有尖端表面。 在齿面和密封面之间测量牙齿间隙。 在尖端表面和密封表面之间测量顶端间隙。 齿隙小于顶端间隙。 刷毛位于侧板和背板之间。 刷毛包括用于密封到密封表面的端部。 偏置构件沿着朝向密封表面的方向在背板上施加偏置力。 背衬齿构造成用于选择性地接触密封表面。
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公开(公告)号：US20130001886A1
公开(公告)日：2013-01-03
申请号：US13174211
申请日：2011-06-30
CPC分类号： F02C7/28 , F02C7/20 , F05D2240/57 , F05D2240/62 , F05D2260/52 , Y10T29/49297
摘要： A seal assembly for a turbomachine is provided. The seal assembly includes multiple arcuate packing ring segments disposed intermediate to a stationary housing and a rotatable element about an axis. The seal assembly further includes multiple flexures mechanically coupled to the stationary housing and the multiple arcuate packing ring segments, wherein the multiple flexures are attached to the stationary housing and the arcuate packing ring segments at positions predetermined to control packing ring twist under differential pressure conditions.
摘要翻译： 提供了一种用于涡轮机的密封组件。 密封组件包括设置在固定壳体中间的多个弓形填料环段和围绕轴线的可旋转元件。 密封组件还包括机械联接到固定壳体和多个弧形填料环段的多个挠曲件，其中多个弯曲件在预定的位置附接到固定壳体和弓形填料环段，以在差压条件下控制填料环扭转。
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公开(公告)号：US20120086172A1
公开(公告)日：2012-04-12
申请号：US12898952
申请日：2010-10-06
IPC分类号： F16J15/44
CPC分类号： F16J15/16 , F01D11/003 , F05D2240/56 , F16J15/3288
摘要： A brush seal and brush seal segment for use in a rotary device are provided. In one embodiment, the invention provides a brush seal comprising: a plurality of brush seal segments, each segment including: an arcuate fence; an arcuate backplate substantially circumferentially coextensive with the arcuate fence, the arcuate backplate including a first end and a second end; and a plurality of brush seal bristles between the arcuate backplate and the arcuate fence, the plurality of brush seal bristles being angled with respect to a radial axis of the arcuate backplate and at least one of the first end and the second end of the arcuate backplate; and a static member to which at least one of the plurality of brush seal segments is affixed.
摘要翻译： 提供用于旋转装置的刷密封和刷密封段。 在一个实施例中，本发明提供了一种刷子密封件，其包括：多个刷子密封段，每个段包括：弓形围栏; 基本上与弓形围栏共同延伸的弓形背板，该弧形背板包括第一端和第二端; 以及在所述弓形背板和所述弧形挡板之间的多个刷密封刷毛，所述多个刷密封刷毛相对于所述弧形背板的径向轴线成角度，并且所述弓形背板的第一端和第二端中的至少一个 ; 以及固定所述多个刷子密封段中的至少一个的静止部件。
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公开(公告)号：US08038155B2
公开(公告)日：2011-10-18
申请号：US11775280
申请日：2007-07-10
申请人： Xiaoqing Zheng , Gerard M. Berard
发明人： Xiaoqing Zheng , Gerard M. Berard
CPC分类号： F16J15/3444
摘要： A non-contacting rotary face seal assembly includes a first sealing member, including a first sealing face and a first magnetic element; and a second sealing member, including a second sealing face and a second magnetic element. The first and second magnetic elements of the first and second sealing members provide a magnetic repulsion force between the first and second magnetic elements such that the magnetic repulsion force separates the first and second sealing faces before hydrodynamic or hydrostatic forces associated with rotation of the second sealing member become sufficient to prevent the first and second sealing faces from contacting.
摘要翻译： 非接触式旋转面密封组件包括第一密封构件，包括第一密封面和第一磁性元件; 以及包括第二密封面和第二磁性元件的第二密封构件。 第一和第二密封构件的第一和第二磁性元件在第一和第二磁性元件之间提供磁性排斥力，使得磁性排斥力在与第二密封件的旋转相关联的流体动力学或静水力之前分离第一和第二密封面 构件变得足以防止第一和第二密封面接触。
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公开(公告)号：US20110070069A1
公开(公告)日：2011-03-24
申请号：US12565145
申请日：2009-09-23
CPC分类号： F01D11/003 , F01D5/085 , F01D11/04 , F01D25/12 , F05D2240/55 , F05D2240/56 , F05D2260/20 , F05D2260/60
摘要： A steam turbine and a rotor are disclosed having steam extending internally along at least part of the rotor. The rotor includes an interface and a steam passage system formed in the rotor, the passage system including a first inlet flow passage to the interface, the first inlet flow passage configured to receive steam from a first region of an outer surface of the rotor, a first outlet flow passage from the interface, the first outlet flow passage configured to pass steam to a second region of the rotor, a second inlet flow passage to the interface, the second inlet flow passage configured to receive steam from a third region of the outer surface of the rotor, a second outlet flow passage from the interface, the second outlet flow passage configured to pass steam to a fourth region of the rotor.
摘要翻译： 公开了一种蒸汽轮机和转子，其具有沿着转子的至少一部分内部延伸的蒸汽。 转子包括形成在转子中的接口和蒸汽通道系统，该通道系统包括到接口的第一入口流动通道，第一入口流动通道构造成从转子的外表面的第一区域接收蒸汽， 所述第一出口流动通道被配置为将蒸汽传递到所述转子的第二区域，所述第一入口流动通道被配置为将蒸汽传递到所述转子的第二区域，所述第二入口流动通道被配置为从所述外部的第三区域接收蒸汽 转子的表面，来自界面的第二出口流动通道，第二出口流动通道构造成将蒸汽传递到转子的第四区域。
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公开(公告)号：US07770895B2
公开(公告)日：2010-08-10
申请号：US11743005
申请日：2007-05-01
IPC分类号： F16J15/447
CPC分类号： F16J15/442
摘要： A segment of a seal assembly for sealing a higher pressure area from a lower pressure area is disclosed. The segment comprises a radial external surface, a radial internal surface for sealing against a rotating member, a transverse groove for maintaining a pressure around portions of the segment, and one or more pads including a scooping groove. The scooping groove is positioned at or in proximity to an edge of the transverse groove and provides for a transition flow between the one or more pads and the transverse groove.
摘要翻译： 公开了一种用于从较低压力区域密封较高压力区域的密封组件的段。 所述段包括径向外表面，用于密封旋转构件的径向内表面，用于维持所述段的一部分周围的压力的横向凹槽以及包括铲斗槽的一个或多个垫。 舀取槽定位在横向槽的边缘处或附近，并且提供在一个或多个焊盘和横向槽之间的过渡流。
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