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

IPC分类号： F01D11/08 ,  F16J15/16

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。

公开(公告)号：US20110318169A1

公开(公告)日：2011-12-29

申请号：US12821391

申请日：2010-06-23

申请人： Xiaoqing Zheng ,  Bernard Arthur Couture, JR. ,  Casey William Jones ,  Binayak Roy

发明人： Xiaoqing Zheng ,  Bernard Arthur Couture, JR. ,  Casey William Jones ,  Binayak Roy

IPC分类号： F03B11/00

CPC分类号： F01D11/025 ,  F01D3/04 ,  F01D17/08 ,  F01D17/10 ,  F01D17/20 ,  F01D19/00 ,  F01D21/06 ,  F01D21/08 ,  F01D21/14 ,  F05D2240/52

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 near a stepped portion on the rotating shaft. A second leak off line fluidly couples a second stage of the turbine section that has a pressure different from the first stage to a step area immediately adjacent to 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。 第一泄漏线将涡轮机部分的第一级与旋转轴上的台阶部分附近的填料流体连接。 第二泄漏线将具有不同于第一级的压力的涡轮部分的第二级流体地耦合到与阶梯部分紧邻的台阶区域，并且连接线将第一泄漏线与第二泄漏流体耦合 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。