文档介绍：: .
GAS SEALS
干气密封
DRESSER-RAND
Dry Gas Seal
「干气密封
* Gas Seal Principle
干气密封原理
* Groove Pattern & Lift Off Effect
凹槽型式和提升效果
* Opening & Closing Forces
开启与闭合的力
* Gas Seal Arrangement
干气密圭寸布局
* Materials & Construction Features
材料以及结构特点
* Barrier Seals
隔离密封
* Gas Seal Testing
干气密封测试
* Gas Seal Installation
干气密封安装
DRESSER^AND 2
DRESSER-RAND
Gas Seal Principle
干气密封原理
ROTATING SEAT
INBOARD
OUTBOAR
DRESSER-RAND
When rotating, the aerodynamic effect of the grooves creates a very thin gap between the rotating and the stationary rings ・
旋转时，凹槽的空气动 力作用在动环与静环之 间建立一层薄膜
#
•© 2007 by Dresser-Rand
Gas Seal Principle ■ Simplified Cross Section (John Crane T28 AT)
厂干气密封原理-简易剖面图(约翰克兰T28AJ)
DRESSER-RAND #
•© 2007 by Dresser-Rand
DRESSER-RAND #
•© 2007 by Dresser-Rand
密封槽底
Rotating Seat 动环
•外径
otton of Groove
Retaining Ring Assy 定位环
Balance
Stationary Seat 静环
DRESSER-RAND #
•© 2007 by Dresser-Rand
Gas Seal Principle ・ Simplified Cross Section (D・R)
厂干气密封原理-简易剖面图CD-R)
Groove Pattern - DR Seal
凹槽型式- DR干气密封
DRESSER-RAND #
•© 2007 by Dresser-Rand
Groove Pattern - J・C・ T28 Seal
「凹槽型式-约翰克兰
T28干气密封
DRESSER-RAND #
•© 2007 by Dresser-Rand
Groove Pattern - Flowserve Bi Directional Symmetrical "T9 Groove
回槽型式-Flowserve对称f型槽
T-groove face design, and can operate in clockwise and counter clockwise rotation
T型凹槽面的设计，可以顺时针也可以逆时针旋转运行
DRESSER^AND 8
•© 2007 by Dresser-Rand
Groove Pattern 一 Flowserve Uni- Directional Advanced Pattern Groove
凹槽型式- Flowserve单向高级形式凹槽
This design features provides improved hydrostatic lift，resulting in low torque at start up
这种设计特色能提供改进过的流体静力提升力，可以 在试车时低扭矩
The circumferential groove next to the sealing dam ensures uniform pressur