EP2246524A3 - Seal structure and control method therefor - Google Patents
Seal structure and control method therefor Download PDFInfo
- Publication number
- EP2246524A3 EP2246524A3 EP10161505.2A EP10161505A EP2246524A3 EP 2246524 A3 EP2246524 A3 EP 2246524A3 EP 10161505 A EP10161505 A EP 10161505A EP 2246524 A3 EP2246524 A3 EP 2246524A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- seal
- contact
- fins
- breathable spacers
- rotor
- 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.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title abstract 2
- 125000006850 spacer group Chemical group 0.000 abstract 6
- 238000007789 sealing Methods 0.000 abstract 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D1/00—Non-positive-displacement machines or engines, e.g. steam turbines
- F01D1/02—Non-positive-displacement machines or engines, e.g. steam turbines with stationary working-fluid guiding means and bladed or like rotor, e.g. multi-bladed impulse steam turbines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
- F01D11/08—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
- F01D11/08—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator
- F01D11/14—Adjusting or regulating tip-clearance, i.e. distance between rotor-blade tips and stator casing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2240/00—Components
- F05D2240/55—Seals
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009112332A JP5411569B2 (en) | 2009-05-01 | 2009-05-01 | Seal structure and control method |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2246524A2 EP2246524A2 (en) | 2010-11-03 |
EP2246524A3 true EP2246524A3 (en) | 2017-10-18 |
Family
ID=42275618
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10161505.2A Withdrawn EP2246524A3 (en) | 2009-05-01 | 2010-04-29 | Seal structure and control method therefor |
Country Status (4)
Country | Link |
---|---|
US (1) | US20100278645A1 (en) |
EP (1) | EP2246524A3 (en) |
JP (1) | JP5411569B2 (en) |
CN (1) | CN101876259A (en) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4668976B2 (en) * | 2007-12-04 | 2011-04-13 | 株式会社日立製作所 | Steam turbine seal structure |
JP5427798B2 (en) * | 2011-01-14 | 2014-02-26 | 株式会社日立製作所 | Steam turbine seal structure |
ITCO20110013A1 (en) * | 2011-03-29 | 2012-09-30 | Nuovo Pignone Spa | LOCKING SYSTEMS FOR TURBO-EXTRACTORS TO BE USED IN ORGANIC RANKINE CYCLES |
JP5717566B2 (en) * | 2011-07-13 | 2015-05-13 | 株式会社東芝 | Seal device and steam turbine |
JP5308548B2 (en) * | 2012-02-06 | 2013-10-09 | 三菱重工業株式会社 | Seal structure and rotary machine equipped with the same |
CN102619577B (en) * | 2012-04-06 | 2015-06-10 | 东南大学 | Device for inhibiting clearance leakage of blade tip and reducing steam flow exciting force |
JP5892880B2 (en) * | 2012-07-03 | 2016-03-23 | 三菱日立パワーシステムズ株式会社 | Rotary machine seal structure and rotary machine |
JP5936515B2 (en) * | 2012-10-18 | 2016-06-22 | 三菱日立パワーシステムズ株式会社 | Rotating machine |
US9995164B2 (en) * | 2012-12-13 | 2018-06-12 | Mitsubishi Hitachi Power Systems, Ltd. | Rotating fluid machine |
CN103075204B (en) * | 2013-01-25 | 2015-11-18 | 潍坊雷诺特动力设备有限公司 | Back steam seal device of steam turbine |
DE202013012218U1 (en) * | 2013-10-24 | 2015-09-21 | Man Diesel & Turbo Se | sealing system |
WO2016022136A1 (en) * | 2014-08-08 | 2016-02-11 | Siemens Energy, Inc. | Interstage seal housing optimization system in a gas turbine engine |
CN104654786B (en) * | 2015-02-10 | 2016-08-31 | 烽火通信科技股份有限公司 | A kind of motion seal part of preheating furnace |
JP6601677B2 (en) * | 2016-02-16 | 2019-11-06 | 三菱日立パワーシステムズ株式会社 | Sealing device and rotating machine |
JP2018035717A (en) * | 2016-08-30 | 2018-03-08 | 三菱日立パワーシステムズ株式会社 | Seal device segment, turbine rotor including the same, and turbine |
FR3058495B1 (en) * | 2016-11-09 | 2019-06-28 | Safran Aircraft Engines | DOUBLE SHAPE SEALING DEVICE, LABYRINTH SEAL AND MOBILE LATCH |
US11519288B2 (en) * | 2020-12-18 | 2022-12-06 | General Electric Company | Turbomachine clearance control using brush seals having magnetically responsive filaments |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3825364A (en) * | 1972-06-09 | 1974-07-23 | Gen Electric | Porous abradable turbine shroud |
US20070248452A1 (en) * | 2006-04-25 | 2007-10-25 | Brisson Bruce W | Retractable compliant abradable sealing system and method for rotary machines |
EP2372103A1 (en) * | 2007-12-04 | 2011-10-05 | Hitachi Ltd. | Seal structure for a steam turbine |
Family Cites Families (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3527053A (en) * | 1968-12-11 | 1970-09-08 | Gen Electric | Gas turbine engine with improved gas seal |
US3970319A (en) * | 1972-11-17 | 1976-07-20 | General Motors Corporation | Seal structure |
US4080204A (en) * | 1976-03-29 | 1978-03-21 | Brunswick Corporation | Fenicraly alloy and abradable seals made therefrom |
JPS5920908B2 (en) * | 1977-07-21 | 1984-05-16 | 住友電気工業株式会社 | Labyrinth Spatskin |
FR2438165A1 (en) * | 1978-10-06 | 1980-04-30 | Snecma | TEMPERATURE CONTROL DEVICE FOR GAS TURBINES |
US4251272A (en) * | 1978-12-26 | 1981-02-17 | Union Carbide Corporation | Oxidation resistant porous abradable seal member for high temperature service |
JPS5918210A (en) * | 1982-07-21 | 1984-01-30 | Toshiba Corp | Labyrinth packing for low temperature heat gas turbine |
US4460185A (en) * | 1982-08-23 | 1984-07-17 | General Electric Company | Seal including a non-metallic abradable material |
US4513975A (en) * | 1984-04-27 | 1985-04-30 | General Electric Company | Thermally responsive labyrinth seal |
JPH0230903A (en) * | 1988-07-20 | 1990-02-01 | Hitachi Ltd | Steam turbine |
US5314304A (en) * | 1991-08-15 | 1994-05-24 | The United States Of America As Represented By The Secretary Of The Air Force | Abradeable labyrinth stator seal |
US5971400A (en) * | 1998-08-10 | 1999-10-26 | General Electric Company | Seal assembly and rotary machine containing such seal assembly |
JP2003521657A (en) * | 2000-02-01 | 2003-07-15 | ゼネラル・エレクトリック・カンパニイ | Compulsory packing ring brush seal combination |
EP1152124A1 (en) * | 2000-05-04 | 2001-11-07 | Siemens Aktiengesellschaft | Sealing device |
US6669450B2 (en) * | 2000-10-28 | 2003-12-30 | Airzen Co., Ltd. | Rotary slant shaft type gas compressor with multi-stepped exhaust system |
JP2002228013A (en) * | 2001-02-01 | 2002-08-14 | Mitsubishi Heavy Ind Ltd | Acc type labyrinth seal |
US6547522B2 (en) * | 2001-06-18 | 2003-04-15 | General Electric Company | Spring-backed abradable seal for turbomachinery |
US6840519B2 (en) * | 2001-10-30 | 2005-01-11 | General Electric Company | Actuating mechanism for a turbine and method of retrofitting |
US6786487B2 (en) * | 2001-12-05 | 2004-09-07 | General Electric Company | Actuated brush seal |
US7066470B2 (en) * | 2001-12-05 | 2006-06-27 | General Electric Company | Active seal assembly |
US6887530B2 (en) * | 2002-06-07 | 2005-05-03 | Sulzer Metco (Canada) Inc. | Thermal spray compositions for abradable seals |
AU2002950972A0 (en) * | 2002-08-23 | 2002-09-12 | Hunt, James Richard | Fuel delivery system |
US6969231B2 (en) * | 2002-12-31 | 2005-11-29 | General Electric Company | Rotary machine sealing assembly |
DE10360164A1 (en) * | 2003-12-20 | 2005-07-21 | Mtu Aero Engines Gmbh | Gas turbine component |
US7435049B2 (en) * | 2004-03-30 | 2008-10-14 | General Electric Company | Sealing device and method for turbomachinery |
US7287956B2 (en) * | 2004-12-22 | 2007-10-30 | General Electric Company | Removable abradable seal carriers for sealing between rotary and stationary turbine components |
US20060228209A1 (en) * | 2005-04-12 | 2006-10-12 | General Electric Company | Abradable seal between a turbine rotor and a stationary component |
JP2007016704A (en) | 2005-07-08 | 2007-01-25 | Mitsubishi Heavy Ind Ltd | Seal structure of rotating shaft and rotary machine having the same |
US7645117B2 (en) * | 2006-05-05 | 2010-01-12 | General Electric Company | Rotary machines and methods of assembling |
US7549834B2 (en) * | 2006-06-19 | 2009-06-23 | General Electric Company | Actuation pressure control for adjustable seals in turbomachinery |
JP2008169705A (en) * | 2007-01-09 | 2008-07-24 | Toshiba Corp | Steam turbine |
JP2008223660A (en) * | 2007-03-14 | 2008-09-25 | Toshiba Corp | Shaft sealing device and turbomachinery |
-
2009
- 2009-05-01 JP JP2009112332A patent/JP5411569B2/en not_active Expired - Fee Related
-
2010
- 2010-04-28 US US12/769,249 patent/US20100278645A1/en not_active Abandoned
- 2010-04-28 CN CN2010101710461A patent/CN101876259A/en active Pending
- 2010-04-29 EP EP10161505.2A patent/EP2246524A3/en not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3825364A (en) * | 1972-06-09 | 1974-07-23 | Gen Electric | Porous abradable turbine shroud |
US20070248452A1 (en) * | 2006-04-25 | 2007-10-25 | Brisson Bruce W | Retractable compliant abradable sealing system and method for rotary machines |
EP2372103A1 (en) * | 2007-12-04 | 2011-10-05 | Hitachi Ltd. | Seal structure for a steam turbine |
Also Published As
Publication number | Publication date |
---|---|
JP2010261351A (en) | 2010-11-18 |
EP2246524A2 (en) | 2010-11-03 |
US20100278645A1 (en) | 2010-11-04 |
CN101876259A (en) | 2010-11-03 |
JP5411569B2 (en) | 2014-02-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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17P | Request for examination filed |
Effective date: 20100917 |
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RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: MITSUBISHI HITACHI POWER SYSTEMS, LTD. |
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RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: MITSUBISHI HITACHI POWER SYSTEMS, LTD. |
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RIC1 | Information provided on ipc code assigned before grant |
Ipc: F01D 11/08 20060101ALI20170913BHEP Ipc: F01D 1/02 20060101AFI20170913BHEP Ipc: F01D 11/14 20060101ALI20170913BHEP |
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Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
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INTG | Intention to grant announced |
Effective date: 20180821 |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
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18W | Application withdrawn |
Effective date: 20181106 |