公开(公告)号：US09683453B2

公开(公告)日：2017-06-20

申请号：US14023582

申请日：2013-09-11

Applicant: General Electric Company

Inventor： Karimulla Shaik Sha ,  Prakash Rajagopal ,  Xiaoqing Zheng

IPC: F01D11/22

CPC classification number: F01D11/22 ,  F05D2220/31 ,  Y02E20/16

Abstract: Systems and devices configured to reduce thermal design clearances (e.g., between stationary nozzles connected to the inner casing and rotor buckets connected to the rotor) in turbines by actively controlling casing movements and/or locations during turbine operation are disclosed. In one embodiment, a clearance management system includes: a first inner casing support arm shaped to connect to an inner casing of a turbine and extend through an outer casing of the turbine; a seal system disposed about the first inner casing support arm and configured to connect to the outer casing; and a set of actuators disposed on a turbine foundation of the turbine and connected to the first inner casing support arm, the set of actuators located external to the outer casing and configured to adjust a position of the inner casing relative to the outer casing via manipulation of the first inner casing support arm.

公开(公告)号：US20150071766A1

公开(公告)日：2015-03-12

申请号：US14023582

申请日：2013-09-11

Applicant: General Electric Company

Inventor： Karimulla Shaik Sha ,  Prakash Rajagopal ,  Xiaoqing Zheng

IPC: F01D11/22

CPC classification number: F01D11/22 ,  F05D2220/31 ,  Y02E20/16

Abstract: Systems and devices configured to reduce thermal design clearances (e.g., between stationary nozzles connected to the inner casing and rotor buckets connected to the rotor) in turbines by actively controlling casing movements and/or locations during turbine operation are disclosed. In one embodiment, a clearance management system includes: a first inner casing support arm shaped to connect to an inner casing of a turbine and extend through an outer casing of the turbine; a seal system disposed about the first inner casing support arm and configured to connect to the outer casing; and a set of actuators disposed on a turbine foundation of the turbine and connected to the first inner casing support arm, the set of actuators located external to the outer casing and configured to adjust a position of the inner casing relative to the outer casing via manipulation of the first inner casing support arm.

Abstract translation: 公开了通过在涡轮机操作期间主动地控制壳体运动和/或位置来构造成在涡轮机中减少热设计间隙（例如，连接到内壳体的固定喷嘴和连接到转子的转子桶之间）的系统和装置。 在一个实施例中，间隙管理系统包括：第一内壳支撑臂，其形状为连接到涡轮机的内壳并延伸穿过涡轮机的外壳; 密封系统，围绕所述第一内壳支撑臂布置并且被配置为连接到所述外壳; 以及一组致动器，其设置在所述涡轮机的涡轮机基座上并连接到所述第一内壳支撑臂，所述致动器组位于所述外壳的外部，并被配置为经由操纵调节所述内壳体相对于所述外壳体的位置 的第一内壳支撑臂。