JPS57116103A - Preventive device for leakage of working fluid for axial-flow turbine and compressor - Google Patents
Preventive device for leakage of working fluid for axial-flow turbine and compressorInfo
- Publication number
- JPS57116103A JPS57116103A JP123281A JP123281A JPS57116103A JP S57116103 A JPS57116103 A JP S57116103A JP 123281 A JP123281 A JP 123281A JP 123281 A JP123281 A JP 123281A JP S57116103 A JPS57116103 A JP S57116103A
- Authority
- JP
- Japan
- Prior art keywords
- leakage current
- leakage
- axial
- compressor
- casing wall
- 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.)
- Pending
Links
Abstract
PURPOSE: To inhibit the leakage current of a jet injected from one part of the nose of a movable vane by means of the pressure barrier of a casing wall by forming a taper in the axial direction to the casing wall so that the jet flows in the direction reverse to a component in the axial direction of the leakage current.
CONSTITUTION: A fluid introduced into an internal flow path 2 of the movable vane 1 through a rotor is injected by pressure or centrifugal force from a nozzle 5 inclined in the direction opposing the leakage current 3, and flows along a tapered wall 4. The leakage current flowing along the casing wall to the low pressure side L from the high pressure side H or a stepped section of a turbine is prevented by the dynamic pressure of the current of the fluid.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP123281A JPS57116103A (en) | 1981-01-09 | 1981-01-09 | Preventive device for leakage of working fluid for axial-flow turbine and compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP123281A JPS57116103A (en) | 1981-01-09 | 1981-01-09 | Preventive device for leakage of working fluid for axial-flow turbine and compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57116103A true JPS57116103A (en) | 1982-07-20 |
Family
ID=11495717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP123281A Pending JPS57116103A (en) | 1981-01-09 | 1981-01-09 | Preventive device for leakage of working fluid for axial-flow turbine and compressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57116103A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005002917A (en) * | 2003-06-12 | 2005-01-06 | Toshiba Corp | Steam turbine seal device and steam turbine equipped with the same |
| JP2014020319A (en) * | 2012-07-20 | 2014-02-03 | Toshiba Corp | Seal device for turbine and thermal power generation system |
| JP2015063992A (en) * | 2013-08-14 | 2015-04-09 | アルストム テクノロジー リミテッドＡＬＳＴＯＭ Ｔｅｃｈｎｏｌｏｇｙ Ｌｔｄ | Fluid seal arrangement and method for constricting leakage flow through leakage gap |
| WO2017110224A1 (en) * | 2015-12-24 | 2017-06-29 | 三菱日立パワーシステムズ株式会社 | Sealing device |
-
1981
- 1981-01-09 JP JP123281A patent/JPS57116103A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005002917A (en) * | 2003-06-12 | 2005-01-06 | Toshiba Corp | Steam turbine seal device and steam turbine equipped with the same |
| JP2014020319A (en) * | 2012-07-20 | 2014-02-03 | Toshiba Corp | Seal device for turbine and thermal power generation system |
| US9777587B2 (en) | 2012-07-20 | 2017-10-03 | Kabushiki Kaisha Toshiba | Seal apparatus of turbine and thermal power system |
| JP2015063992A (en) * | 2013-08-14 | 2015-04-09 | アルストム テクノロジー リミテッドＡＬＳＴＯＭ Ｔｅｃｈｎｏｌｏｇｙ Ｌｔｄ | Fluid seal arrangement and method for constricting leakage flow through leakage gap |
| WO2017110224A1 (en) * | 2015-12-24 | 2017-06-29 | 三菱日立パワーシステムズ株式会社 | Sealing device |
| JP2017115716A (en) * | 2015-12-24 | 2017-06-29 | 三菱日立パワーシステムズ株式会社 | Seal device |
| US10822984B2 (en) | 2015-12-24 | 2020-11-03 | Mitsubishi Hitachi Power Systems, Ltd. | Sealing device |
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