JPS55159366A - Shaft seal device for axial flow machine - Google Patents
Shaft seal device for axial flow machineInfo
- Publication number
- JPS55159366A JPS55159366A JP6384179A JP6384179A JPS55159366A JP S55159366 A JPS55159366 A JP S55159366A JP 6384179 A JP6384179 A JP 6384179A JP 6384179 A JP6384179 A JP 6384179A JP S55159366 A JPS55159366 A JP S55159366A
- Authority
- JP
- Japan
- Prior art keywords
- flow
- blades
- inlet
- decreased
- decrease
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Turbine Rotor Nozzle Sealing (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
PURPOSE: To improve an effect of the steps by a method wherein a plurality of inlet blades and outlet blades are arranged at the inlet end and the outlet end of the labyrinth seal side surfaces, respectively.
CONSTITUTION: The inlet blades 46 and the outlet blades 47 are arranged at both annular side surfaces of labyrinth seal 36, respectively. In this way, the inlet blades 46 prevent a flow of the leaked flow 37 to increase the pressure and decrease a pressure difference between the main flow at the stepped parts to decrease a flow of the leaked flow 37 or to return the balance hole passing flow to the stepped main flow. The outlet blades 47 prevent the fluid flow 32 leaking from shaft to increase the pressure, decrease a difference between the labyrinth inlet pressures and then a shaft leakage flow 32 at the stepped part is decreased. As a result, the leaked flow 37 is decreased and the main return flow at the stepped part is decreased or in turn the reversing flow may be available. In this way, the effect at the stepped part may be improved.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6384179A JPS55159366A (en) | 1979-05-25 | 1979-05-25 | Shaft seal device for axial flow machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6384179A JPS55159366A (en) | 1979-05-25 | 1979-05-25 | Shaft seal device for axial flow machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55159366A true JPS55159366A (en) | 1980-12-11 |
| JPS6139485B2 JPS6139485B2 (en) | 1986-09-04 |
Family
ID=13240957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6384179A Granted JPS55159366A (en) | 1979-05-25 | 1979-05-25 | Shaft seal device for axial flow machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55159366A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002161704A (en) * | 2000-08-15 | 2002-06-07 | General Electric Co <Ge> | Hollow finger dovetail pin and bucket mounting method using the pin |
| CN102865107A (en) * | 2011-07-07 | 2013-01-09 | 阿特拉斯·科普柯能源有限公司 | Axial shaft seal |
| JP2016075389A (en) * | 2014-10-03 | 2016-05-12 | アルストム テクノロジー リミテッドＡＬＳＴＯＭ Ｔｅｃｈｎｏｌｏｇｙ Ｌｔｄ | seal |
| JP2016138483A (en) * | 2015-01-27 | 2016-08-04 | 三菱日立パワーシステムズ株式会社 | Turbine |
-
1979
- 1979-05-25 JP JP6384179A patent/JPS55159366A/en active Granted
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002161704A (en) * | 2000-08-15 | 2002-06-07 | General Electric Co <Ge> | Hollow finger dovetail pin and bucket mounting method using the pin |
| CN102865107A (en) * | 2011-07-07 | 2013-01-09 | 阿特拉斯·科普柯能源有限公司 | Axial shaft seal |
| JP2016075389A (en) * | 2014-10-03 | 2016-05-12 | アルストム テクノロジー リミテッドＡＬＳＴＯＭ Ｔｅｃｈｎｏｌｏｇｙ Ｌｔｄ | seal |
| JP2016138483A (en) * | 2015-01-27 | 2016-08-04 | 三菱日立パワーシステムズ株式会社 | Turbine |
| WO2016121259A1 (en) * | 2015-01-27 | 2016-08-04 | 三菱日立パワーシステムズ株式会社 | Turbine |
| CN107208493A (en) * | 2015-01-27 | 2017-09-26 | 三菱日立电力系统株式会社 | Turbine |
| US10316680B2 (en) | 2015-01-27 | 2019-06-11 | Mitsubishi Hitachi Power Systems, Ltd. | Turbine |
| CN107208493B (en) * | 2015-01-27 | 2019-06-28 | 三菱日立电力系统株式会社 | turbine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6139485B2 (en) | 1986-09-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS56106088A (en) | Rotary type fluid equipment | |
| JPS57179361A (en) | Pumping device | |
| JPS55159366A (en) | Shaft seal device for axial flow machine | |
| JPS55146201A (en) | Moving blade for turbine | |
| JPS5257410A (en) | Leakage sealing mechanism for axial fluid machine | |
| JPS5793607A (en) | Guide for fluid inlet port | |
| JPS5712164A (en) | Air supply device to rotor | |
| JPS5510134A (en) | Shaft sealing unit | |
| JPS56135799A (en) | Apparatus for alleviating vibration of shaft of centrifugal fluid machine | |
| JPS5517633A (en) | Balancing device for thrust of shaft | |
| JPS57146062A (en) | Shaft sealing device for movable blade fixing section of hydraulic machine | |
| JPS5572664A (en) | Water sealing device for hydraulic machine shaft | |
| JPS5525513A (en) | Radial piston type fluid machine | |
| GB761421A (en) | Improvements in or relating to labyrinth parking systems for use in turbines or pumps | |
| JPS5590759A (en) | Sealing apparatus for shaft of hydraulic machine | |
| JPS5530561A (en) | Seal for cylindrical surface | |
| JPS55155960A (en) | Shaft sealing device | |
| JPS5569794A (en) | Sealing system for pump | |
| JPS5652574A (en) | Multistage hydraulic machine | |
| JPS5676764A (en) | Mechanical seal | |
| JPS5252005A (en) | Method of preventing radial expansion turbine operating fluid from leaking | |
| JPS54106911A (en) | Leakage preventive mechanism for companion flange part | |
| JPS5244349A (en) | Turbine with plural conduit passages | |
| JPS54147641A (en) | Air conditioner | |
| JPS5564102A (en) | Pressure balancing structure for axial-flow fluid machine |