公开(公告)号：US20150130142A1

公开(公告)日：2015-05-14

申请号：US14076946

申请日：2013-11-11

Applicant: General Electric Company

Inventor： Xiaoqing Zheng ,  Rahul Anil Bidkar ,  Karimulla Shaik Sha ,  Azam Mihir Thatte

IPC: F01D11/00

CPC classification number: F01D11/003 ,  F01D11/005 ,  F16J15/002 ,  F16J15/34 ,  F16J15/3464 ,  F16J15/38 ,  F16J15/441 ,  Y10T29/49863

Abstract: A seal ring assembly for use with a rotary machine that includes an axis of rotation includes a seal housing comprising a secondary sealing surface and a secondary seal assembly coupled to the seal housing. The secondary seal assembly includes a seal ring coupled to the seal housing, wherein the seal ring is configured to form a secondary seal with the secondary sealing surface. The secondary seal assembly also includes at least one protection ring positioned upstream from the seal ring. The secondary seal assembly is configured to be biased along the axis such that biasing the at least one protection ring facilitates removing debris from at least a portion of the secondary sealing surface over which the seal ring travels during biasing.

Abstract translation: 一种与包括旋转轴线的旋转机器一起使用的密封环组件包括密封壳体，其包括二次密封表面和联接到密封壳体的次级密封组件。 二次密封组件包括联接到密封壳体的密封环，其中密封环被构造成与次密封表面形成二次密封。 次级密封组件还包括位于密封环上游的至少一个保护环。 次级密封组件被构造成沿着轴线被偏置，使得偏置至少一个保护环有助于从偏压期间密封环在其上行进的次级密封表面的至少一部分去除碎屑。