CA2407155A1 - Axis seal mechanism and turbine - Google Patents
Axis seal mechanism and turbine Download PDFInfo
- Publication number
- CA2407155A1 CA2407155A1 CA002407155A CA2407155A CA2407155A1 CA 2407155 A1 CA2407155 A1 CA 2407155A1 CA 002407155 A CA002407155 A CA 002407155A CA 2407155 A CA2407155 A CA 2407155A CA 2407155 A1 CA2407155 A1 CA 2407155A1
- Authority
- CA
- Canada
- Prior art keywords
- pressure side
- axis
- high pressure
- low pressure
- plate
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3284—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings characterised by their structure; Selection of materials
- F16J15/3292—Lamellar structures
Abstract
The present invention reduces the amount of gas which leaks and flows from a high pressure side to a low pressure side of the axis and maintains good sealing performance even at high differential pressures. The invention discloses an axis sealing mechanism comprising casings which are supported inside of the stable portion, a plurality of planar plates, which are mutually spaced around the axis, each of which is fixed to the casings, positioned so that an inner end of each planar plate makes an acute angle with a peripheral surface of the axis and contacts the peripheral surface of the axis over a predetermined length in an axial direction, a high pressure side plate which is arranged at a high pressure side and a low pressure side plate which is arranged at a low pressure side so as to hold the planar plates therebetween and a flexible plate which is arranged between the planar plates and the high pressure side plate, and is flexible in an axial direction. The invention also discloses a turbine which provides the above sealing mechanism.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001311312A JP3593082B2 (en) | 2001-10-09 | 2001-10-09 | Shaft seal mechanism and turbine |
JP2001-311312 | 2001-10-09 |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2407155A1 true CA2407155A1 (en) | 2003-04-09 |
CA2407155C CA2407155C (en) | 2005-08-30 |
Family
ID=19130166
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002407155A Expired - Lifetime CA2407155C (en) | 2001-10-09 | 2002-10-07 | Axis seal mechanism and turbine |
Country Status (6)
Country | Link |
---|---|
US (1) | US6736597B2 (en) |
EP (1) | EP1302708B1 (en) |
JP (1) | JP3593082B2 (en) |
CN (1) | CN1278063C (en) |
CA (1) | CA2407155C (en) |
DE (1) | DE60209977T8 (en) |
Families Citing this family (50)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4009555B2 (en) * | 2003-05-20 | 2007-11-14 | イーグル・エンジニアリング・エアロスペース株式会社 | Plate brush seal device |
CN1324221C (en) * | 2003-05-21 | 2007-07-04 | 三菱重工业株式会社 | Shaft seal mechanism |
JP2007263376A (en) * | 2003-05-21 | 2007-10-11 | Mitsubishi Heavy Ind Ltd | Shaft seal mechanism |
CN100396885C (en) * | 2003-05-21 | 2008-06-25 | 三菱重工业株式会社 | Shaft seal mechanism, shaft seal mechanism assembling structure and large size fluid machine |
JP4081719B2 (en) * | 2003-05-30 | 2008-04-30 | イーグル・エンジニアリング・エアロスペース株式会社 | Plate brush seal device |
JP3993536B2 (en) * | 2003-06-20 | 2007-10-17 | 三菱重工業株式会社 | Manufacturing method of shaft seal, shaft seal, shaft seal member, and rotary machine using shaft seal |
DE102004020378A1 (en) | 2004-04-23 | 2005-11-10 | Alstom Technology Ltd | Lamella seal, in particular for a gas turbine, and method for its production |
DE102004020377A1 (en) * | 2004-04-23 | 2005-11-10 | Alstom Technology Ltd | Process for processing seals according to the type of lamellar seals |
GB2413602B (en) | 2004-04-26 | 2008-02-13 | Alstom Technology Ltd | Process for producing leaves for a leaf seal |
JP3917993B2 (en) | 2004-08-10 | 2007-05-23 | 三菱重工業株式会社 | A shaft seal mechanism, a structure for attaching the shaft seal mechanism to a stator, and a turbine including these. |
DE102004059858A1 (en) | 2004-12-11 | 2006-06-29 | Alstom Technology Ltd | Lamella seal, in particular for a gas turbine |
US7549841B1 (en) | 2005-09-03 | 2009-06-23 | Florida Turbine Technologies, Inc. | Pressure balanced centrifugal tip seal |
JP3970298B2 (en) | 2005-11-10 | 2007-09-05 | 三菱重工業株式会社 | Shaft seal mechanism |
GB0613543D0 (en) | 2006-07-07 | 2006-08-16 | Rolls Royce Plc | Leaf seal arrangement |
US8382119B2 (en) * | 2006-08-15 | 2013-02-26 | General Electric Company | Compliant plate seals for turbomachinery |
US7419164B2 (en) | 2006-08-15 | 2008-09-02 | General Electric Company | Compliant plate seals for turbomachinery |
US7703774B2 (en) | 2006-09-12 | 2010-04-27 | General Electric Company | Shaft seal using shingle members |
GB0707224D0 (en) * | 2007-04-14 | 2007-05-23 | Rolls Royce Plc | A seal arrangement |
US7909335B2 (en) | 2008-02-04 | 2011-03-22 | General Electric Company | Retractable compliant plate seals |
ATE507421T1 (en) * | 2008-03-28 | 2011-05-15 | Alstom Technology Ltd | BLADE SEAL FOR TURBO MACHINE |
JP5118552B2 (en) * | 2008-05-20 | 2013-01-16 | 三菱重工業株式会社 | Shaft seal device for rotating machinery |
US20090304493A1 (en) * | 2008-06-09 | 2009-12-10 | General Electric Company | Axially oriented shingle face seal for turbine rotor and related method |
US8205891B2 (en) * | 2008-09-15 | 2012-06-26 | Stein Seal Company | Intershaft seal assembly |
US8262349B2 (en) * | 2008-12-22 | 2012-09-11 | General Electric Company | Adaptive compliant plate seal assemblies and methods |
DE102009015122A1 (en) | 2009-03-31 | 2010-10-14 | Alstom Technology Ltd. | Lamella seal for a turbomachine |
EP2444701B1 (en) * | 2009-06-16 | 2020-07-01 | Mitsubishi Hitachi Power Systems, Ltd. | Shaft seal device |
US8272644B1 (en) | 2009-07-14 | 2012-09-25 | Florida Turbine Technologies, Inc. | Floating card seal |
US8333544B1 (en) | 2009-08-14 | 2012-12-18 | Florida Turbine Technologies, Inc. | Card seal for a turbomachine |
US8152462B1 (en) | 2009-08-19 | 2012-04-10 | Florida Turbine Technologies, Inc. | Card seal with conical flexible seal |
GB0922074D0 (en) * | 2009-12-18 | 2010-02-03 | Rolls Royce Plc | A leaf seal assembly |
GB201001072D0 (en) * | 2010-01-25 | 2010-03-10 | Rolls Royce Plc | Sealing arrangemant foa a gas turbine engine |
JP5473685B2 (en) * | 2010-03-10 | 2014-04-16 | 三菱重工業株式会社 | Shaft sealing device and rotary machine equipped with shaft sealing device |
US8690158B2 (en) | 2010-07-08 | 2014-04-08 | Siemens Energy, Inc. | Axially angled annular seals |
US9206904B2 (en) | 2010-07-08 | 2015-12-08 | Siemens Energy, Inc. | Seal including flexible seal strips |
US8454023B2 (en) * | 2011-05-10 | 2013-06-04 | General Electric Company | Retractable seal system |
JP5804893B2 (en) | 2011-10-26 | 2015-11-04 | 三菱重工業株式会社 | Shaft seal device and rotary machine equipped with the same |
GB201121440D0 (en) | 2011-12-14 | 2012-01-25 | Rolls Royce Plc | Improved leaf seal |
JP5931450B2 (en) * | 2012-01-13 | 2016-06-08 | 三菱重工業株式会社 | Shaft seal device and rotary machine equipped with the same |
JP5851890B2 (en) * | 2012-03-08 | 2016-02-03 | 三菱重工業株式会社 | Shaft seal device |
ITFI20120210A1 (en) * | 2012-10-15 | 2014-04-16 | Nuovo Pignone Srl | "HIGH EFFICIENCY LOW SPECIFIC SPEED CENTRIFUGAL PUMP" |
JP6012505B2 (en) * | 2013-02-22 | 2016-10-25 | 三菱重工業株式会社 | Shaft seal device and rotary machine |
US9644744B2 (en) * | 2013-10-18 | 2017-05-09 | Mitsubishi Heavy Industries, Ltd. | Shaft sealing device and rotating machine provided therewith |
EP2873895A1 (en) * | 2013-11-19 | 2015-05-20 | Siemens Aktiengesellschaft | Shaft seal and method for manufacturing the same |
JP6125412B2 (en) * | 2013-11-22 | 2017-05-10 | 三菱重工業株式会社 | Shaft sealing device, rotating machine, and manufacturing method of shaft sealing device |
JP6358976B2 (en) * | 2015-02-20 | 2018-07-18 | 三菱日立パワーシステムズ株式会社 | Turbine sealing device and turbine, and thin plate for sealing device |
WO2016168870A2 (en) * | 2016-04-29 | 2016-10-20 | Stein Seal Company | Intershaft seal with asymmetric sealing ring and centrifugal retaining plates |
WO2016179608A2 (en) | 2016-04-29 | 2016-11-10 | Stein Seal Company | Intershaft seal with asymmetric sealing ring |
JP6675262B2 (en) * | 2016-05-09 | 2020-04-01 | 三菱日立パワーシステムズ株式会社 | Seal segment and rotating machine |
JP6631837B2 (en) * | 2016-05-09 | 2020-01-15 | 三菱日立パワーシステムズ株式会社 | Seal segment and rotating machine |
US10822977B2 (en) | 2016-11-30 | 2020-11-03 | General Electric Company | Guide vane assembly for a rotary machine and methods of assembling the same |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8907695D0 (en) | 1989-04-05 | 1989-05-17 | Cross Mfg Co | Seals |
FR2650048B1 (en) * | 1989-07-21 | 1992-05-07 | Alsthom Gec | SEALING FOR ROTARY SHAFT |
GB9801864D0 (en) * | 1998-01-30 | 1998-03-25 | Rolls Royce Plc | A seal arrangement |
EP1013975B1 (en) | 1998-07-13 | 2012-11-21 | Mitsubishi Heavy Industries, Ltd. | Shaft seal and turbine using the shaft seal |
US6161836A (en) * | 1998-08-25 | 2000-12-19 | General Electric Company | Brush seal and rotary machine containing such brush seal |
US6308958B1 (en) * | 1999-10-12 | 2001-10-30 | General Electric Company | Arrangement and method for radially positioning a turbine brush seal |
DE10006298A1 (en) * | 2000-02-12 | 2001-08-16 | Abb Patent Gmbh | Seal for rotating parts |
CA2359933C (en) * | 2001-02-08 | 2006-03-14 | Mitsubishi Heavy Industries, Ltd. | Shaft seal and gas turbine |
-
2001
- 2001-10-09 JP JP2001311312A patent/JP3593082B2/en not_active Expired - Lifetime
-
2002
- 2002-09-28 CN CNB021444595A patent/CN1278063C/en not_active Expired - Lifetime
- 2002-10-07 CA CA002407155A patent/CA2407155C/en not_active Expired - Lifetime
- 2002-10-08 US US10/265,765 patent/US6736597B2/en not_active Expired - Lifetime
- 2002-10-09 DE DE60209977T patent/DE60209977T8/en active Active
- 2002-10-09 EP EP02022640A patent/EP1302708B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE60209977T8 (en) | 2007-07-12 |
CN1278063C (en) | 2006-10-04 |
CN1410690A (en) | 2003-04-16 |
EP1302708B1 (en) | 2006-03-22 |
DE60209977D1 (en) | 2006-05-11 |
US6736597B2 (en) | 2004-05-18 |
EP1302708A2 (en) | 2003-04-16 |
US20030068224A1 (en) | 2003-04-10 |
EP1302708A3 (en) | 2004-05-12 |
CA2407155C (en) | 2005-08-30 |
JP3593082B2 (en) | 2004-11-24 |
JP2003113945A (en) | 2003-04-18 |
DE60209977T2 (en) | 2007-02-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKEX | Expiry |
Effective date: 20221007 |