公开(公告)号：US20140225325A1

公开(公告)日：2014-08-14

申请号：US14172490

申请日：2014-02-04

Applicant: DRESSER-RAND COMPANY

Inventor： Patrice Bardon ,  Raphael Bridon ,  Wee Sen Ng ,  William Runyan

IPC: F04D29/12

CPC classification number: F04D29/12 ,  F04D29/124

Abstract: A sealing system for process gas leakage from a turbomachine casing is provided. The sealing system may include a seal assembly housing coupled to or integral with the turbomachine casing. The seal assembly housing defines a bore configured to receive a rotary shaft and a sealing assembly. The sealing assembly includes a plurality of carbon rings mounted circumferentially about the rotary shaft. The plurality of carbon rings may include an inboard carbon ring configured to prevent flow of a separation gas inboard of the barrier seal, an outboard carbon ring configured to prevent flow of contaminates into the seal assembly housing, and an intermediate carbon ring interposed between the inboard carbon ring and outboard carbon ring. A pressure differential is maintained across the inboard carbon ring, such that the separation gas is prevented from flowing inboard across the inboard carbon ring by a residual portion of a seal gas.

Abstract translation: 提供了一种用于从涡轮机壳体处理气体泄漏的密封系统。 密封系统可以包括联接到涡轮机壳体或与涡轮机壳体一体的密封组件壳体。 密封组件壳体限定了构造成容纳旋转轴和密封组件的孔。 密封组件包括围绕旋转轴周向安装的多个碳环。 多个碳环可以包括内部碳环，其被构造成防止隔离密封件内侧的分离气体的流动，外侧碳环被构造成防止污染物流入密封组件壳体中，以及插入在内侧之间的中间碳环 碳环和外侧碳环。 在内侧碳环上保持压力差，从而防止分离气体通过密封气体的残留部分在内侧流入内侧碳环。

公开(公告)号：US09488187B2

公开(公告)日：2016-11-08

申请号：US14172490

申请日：2014-02-04

Applicant: DRESSER-RAND COMPANY

Inventor： Patrice Bardon ,  Raphael Bridon ,  Wee Sen Ng ,  William Runyan

IPC: F16J15/38 ,  F04D29/12

CPC classification number: F04D29/12 ,  F04D29/124

Abstract: A sealing system for process gas leakage from a turbomachine casing is provided. The sealing system may include a seal assembly housing coupled to or integral with the turbomachine casing. The seal assembly housing defines a bore configured to receive a rotary shaft and a sealing assembly. The sealing assembly includes a plurality of carbon rings mounted circumferentially about the rotary shaft. The plurality of carbon rings may include an inboard carbon ring configured to prevent flow of a separation gas inboard of the barrier seal, an outboard carbon ring configured to prevent flow of contaminates into the seal assembly housing, and an intermediate carbon ring interposed between the inboard carbon ring and outboard carbon ring. A pressure differential is maintained across the inboard carbon ring, such that the separation gas is prevented from flowing inboard across the inboard carbon ring by a residual portion of a seal gas.

Abstract translation: 提供了一种用于从涡轮机壳体处理气体泄漏的密封系统。 密封系统可以包括联接到涡轮机壳体或与涡轮机壳体一体的密封组件壳体。 密封组件壳体限定了构造成容纳旋转轴和密封组件的孔。 密封组件包括围绕旋转轴周向安装的多个碳环。 多个碳环可以包括内部碳环，其被构造成防止隔离密封件内侧的分离气体的流动，外侧碳环被构造成防止污染物流入密封组件壳体中，以及插入在内侧之间的中间碳环 碳环和外侧碳环。 在内侧碳环上保持压力差，从而防止分离气体通过密封气体的残留部分在内侧流入内侧碳环。