ROTARY MACHINE SEAL ASSEMBLY WITH BUTT GAP SEAL ELEMENTS
    2.
    发明申请
    ROTARY MACHINE SEAL ASSEMBLY WITH BUTT GAP SEAL ELEMENTS 有权
    旋转机密封组件与BUTT GAP密封件

    公开(公告)号:US20130058765A1

    公开(公告)日:2013-03-07

    申请号:US13227218

    申请日:2011-09-07

    IPC分类号: F01D11/08 F16J15/16

    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。

    BRUSH SEAL
    6.
    发明申请
    BRUSH SEAL 审中-公开

    公开(公告)号:US20120326393A1

    公开(公告)日:2012-12-27

    申请号:US13169365

    申请日:2011-06-27

    IPC分类号: F01D11/02 F16J15/44

    CPC分类号: F16J15/3288

    摘要: A seal is provided having a bristle pack with a first layer of bristles and a second layer of bristles. The bristle pack has at least one segment end. The first layer of bristles is configured to substantially surround the second layer of bristles, and at least one of the first layer of bristles has a first diameter. The second layer of bristles are located substantially in a center portion of the bristle pack, and at least one of the second layer of bristles has a second diameter. The first diameter is larger than the second diameter, and the first layer of bristles located near the at least one segment end are configured to protect the second layer of bristles located near the at least one segment end.

    摘要翻译: 提供具有刷毛组的密封件,其具有第一刷毛层和第二层刷毛层。 刷毛包具有至少一个段末端。 刷毛的第一层被配置为基本上围绕第二层刷毛,并且第一刷毛层中的至少一个具有第一直径。 刷毛的第二层基本上位于刷毛包的中心部分中,并且第二刷毛层中的至少一个具有第二直径。 第一直径大于第二直径,并且位于至少一个段端附近的第一刷毛层被构造成保护位于至少一个段末端附近的第二刷毛层。

    BRUSH SEAL
    8.
    发明申请

    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

    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。

    SYSTEM FOR CONTROLLING THRUST IN STEAM TURBINE
    10.
    发明申请
    SYSTEM FOR CONTROLLING THRUST IN STEAM TURBINE 有权
    蒸汽涡轮机控制系统

    公开(公告)号:US20110314817A1

    公开(公告)日:2011-12-29

    申请号:US12821386

    申请日:2010-06-23

    IPC分类号: F01K9/00

    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。