公开(公告)号：US09341072B2

公开(公告)日：2016-05-17

申请号：US14574803

申请日：2014-12-18

Applicant: ALSTOM Technology Ltd

Inventor： Hariharan Hanumanthan ,  Christos Georgakis

IPC: F01D11/00 ,  F02C7/28 ,  F16J15/08 ,  F16J3/04

CPC classification number: F01D11/005 ,  F02C7/28 ,  F05D2240/11 ,  F05D2240/57 ,  F16J3/047 ,  F16J15/0887

Abstract: The invention relates to a seal between static components of a turbine. The seal includes at least one middle piece, which has at its opposite ends end pieces. The end pieces are arranged in a respective groove of the static components and adjoining the inside surfaces of the grooves. The middle piece has at least two parts. The middle piece parts are rotatably coupled to one another via a pivot. The pivot is an annular ring in cross section formed by at least two cylinder elements being coaxially interfitted and slidable relative to each other. The inner surface of the pivot is wrapped with metallic cloth material. Advantages of the invention are higher flexibility due to the pivoting to accommodate larger relative movements of the turbine components and reduced wear with aging while maintaining good sealing performance.

Abstract translation: 本发明涉及涡轮静态部件之间的密封。 密封件包括至少一个中间件，其在相对端具有端件。 端片布置在静电部件的相应凹槽中并与凹槽的内表面相邻。 中间部分至少有两部分。 中间件通过枢轴可转动地彼此连接。 枢轴是由至少两个气缸元件形成的横截面的环形环，其相对于彼此同轴地配合和滑动。 枢轴的内表面用金属布材料包裹。 本发明的优点是由于枢转以适应涡轮机部件的较大的相对运动并且通过老化减少的磨损而保持良好的密封性能而具有较高的灵活性。