JP4773804B2 - ガスタービン - Google Patents
ガスタービン Download PDFInfo
- Publication number
- JP4773804B2 JP4773804B2 JP2005332920A JP2005332920A JP4773804B2 JP 4773804 B2 JP4773804 B2 JP 4773804B2 JP 2005332920 A JP2005332920 A JP 2005332920A JP 2005332920 A JP2005332920 A JP 2005332920A JP 4773804 B2 JP4773804 B2 JP 4773804B2
- Authority
- JP
- Japan
- Prior art keywords
- air
- air supply
- seal
- gas turbine
- turbine
- 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.)
- Active
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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
- F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
- F01D11/02—Preventing or minimising internal leakage of working-fluid, e.g. between stages by non-contact sealings, e.g. of labyrinth type
- F01D11/04—Preventing or minimising internal leakage of working-fluid, e.g. between stages by non-contact sealings, e.g. of labyrinth type using sealing fluid, e.g. steam
- F01D11/06—Control thereof
Description
12 燃焼器
13 タービン
14 排気室
20 タービン車室
21 タービン静翼
22 タービン動翼
23 排気ディフューザ
24 ロータ(タービン軸)
25 圧縮側軸受部
26 排気側軸受部
31 ジャーナル軸受
32 軸受箱
33,34,35,36 シールリング
37 シールエア供給孔
38 シールエア配管
40 切換弁
41 第1エア供給配管
42 第2エア供給配管
44 開閉弁
45 補助エア源
46 制御装置(エア切換手段)
Claims (1)
- タービン軸を回転自在に支持する排気側軸受部と、該排気側軸受部の潤滑油の漏洩を阻止すると共に該排気側軸受部内への高温ガスの侵入を阻止するシールエアを供給するシールエア供給路と、前記圧縮機から抽気した圧縮空気を前記シールエア供給路に供給可能な第1エア供給手段と、外部の補助エア源からの圧縮空気を前記シールエア供給路に供給可能な第2エア供給手段と、前記ガスタービンのキャビティ温度と運転負荷とタービン回転数とに基づいて前記第1エア供給手段と第2エア供給手段とを切換える制御装置とを具え、
前記制御装置は、前記ガスタービンの稼動時に前記第1エア供給手段により圧縮空気を前記シールエア供給路に供給する一方、前記ガスタービンへの燃料供給が停止したときに前記第2エア供給手段により圧縮空気を前記シールエア供給路に供給し、
ガスタービンが停止した時間から前記キャビティ温度が定められた温度に低下するまでの所定時間が経過した後、前記シールエア供給路への圧縮空気の供給を停止する、
ことを特徴とするガスタービン。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005332920A JP4773804B2 (ja) | 2005-11-17 | 2005-11-17 | ガスタービン |
US11/600,154 US7661270B2 (en) | 2005-11-17 | 2006-11-16 | Control apparatus for gas turbine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005332920A JP4773804B2 (ja) | 2005-11-17 | 2005-11-17 | ガスタービン |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007138809A JP2007138809A (ja) | 2007-06-07 |
JP4773804B2 true JP4773804B2 (ja) | 2011-09-14 |
Family
ID=38039339
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005332920A Active JP4773804B2 (ja) | 2005-11-17 | 2005-11-17 | ガスタービン |
Country Status (2)
Country | Link |
---|---|
US (1) | US7661270B2 (ja) |
JP (1) | JP4773804B2 (ja) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4773810B2 (ja) * | 2005-11-28 | 2011-09-14 | 三菱重工業株式会社 | ガスタービン |
US8529200B2 (en) * | 2010-01-05 | 2013-09-10 | General Electric Company | Sealing and purging arrangement for a main bearing region |
CN101787902B (zh) * | 2010-04-09 | 2013-12-18 | 杭州汽轮机股份有限公司 | 汽轮机轴端部的油密封装置 |
EP2383440A1 (en) | 2010-04-28 | 2011-11-02 | Siemens Aktiengesellschaft | Turbine including seal air valve system |
EP2431574A1 (en) | 2010-09-20 | 2012-03-21 | Siemens Aktiengesellschaft | Gas turbine and method for operating a gas turbine |
US20120156005A1 (en) * | 2010-12-16 | 2012-06-21 | Caterpillar Inc. | Buffer air for a labyrinth seal |
GB201200290D0 (en) * | 2012-01-10 | 2012-02-22 | Rolls Royce Plc | Gas turbine engine buffer seals |
US9464534B2 (en) * | 2012-12-14 | 2016-10-11 | General Electric Company | Turbine purge flow control system and related method of operation |
US9482236B2 (en) | 2013-03-13 | 2016-11-01 | Rolls-Royce Corporation | Modulated cooling flow scheduling for both SFC improvement and stall margin increase |
US20150308445A1 (en) * | 2014-04-24 | 2015-10-29 | United Technologies Corporation | Gas turbine engine and buffer system therefor |
EP2980363A1 (de) | 2014-07-30 | 2016-02-03 | Siemens Aktiengesellschaft | Maschine und Verfahren zum Betreiben der Maschine |
CN107407222B (zh) * | 2014-11-20 | 2020-08-25 | 沃尔沃卡车集团 | 防止机油逸出的方法和系统 |
JP6799455B2 (ja) | 2016-12-16 | 2020-12-16 | 川崎重工業株式会社 | ガスタービンエンジン |
JP7336919B2 (ja) * | 2019-08-30 | 2023-09-01 | 川崎重工業株式会社 | ガスタービンエンジン |
EP4124734A1 (en) * | 2021-07-26 | 2023-02-01 | Volvo Truck Corporation | An internal combustion engine system |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52101311A (en) * | 1976-02-23 | 1977-08-25 | Hitachi Ltd | Equipment for cooling bearing of gas turbine system |
US4156342A (en) * | 1976-06-11 | 1979-05-29 | Westinghouse Canada Limited | Cooling apparatus for a bearing in a gas turbine |
JPS61241405A (ja) * | 1985-04-17 | 1986-10-27 | Hitachi Ltd | ノズル翼冷却孔異物侵入防止方法 |
US5134844A (en) * | 1990-07-30 | 1992-08-04 | General Electric Company | Aft entry cooling system and method for an aircraft engine |
JP3170181B2 (ja) | 1995-08-22 | 2001-05-28 | 三菱重工業株式会社 | 軸シール用空気供給装置 |
JP3251838B2 (ja) * | 1996-01-24 | 2002-01-28 | 株式会社荏原製作所 | 縦型回転機械の軸受装置 |
JP2001227360A (ja) * | 2000-02-16 | 2001-08-24 | Ebara Corp | 立形ガスタービン装置及び立形ポンプ装置 |
JP4375883B2 (ja) * | 2000-06-02 | 2009-12-02 | 本田技研工業株式会社 | ガスタービンエンジンの軸受へのシールエア供給装置 |
US20030097872A1 (en) * | 2001-11-29 | 2003-05-29 | Granitz Charles Robert | System for reducing oil consumption in gas turbine engines |
US6622490B2 (en) * | 2002-01-11 | 2003-09-23 | Watson Cogeneration Company | Turbine power plant having an axially loaded floating brush seal |
JP4091874B2 (ja) * | 2003-05-21 | 2008-05-28 | 本田技研工業株式会社 | ガスタービンエンジンの二次エア供給装置 |
JP3889727B2 (ja) * | 2003-07-01 | 2007-03-07 | 株式会社日立製作所 | ガスタービン及び冷却空気導入方法 |
US7562519B1 (en) * | 2005-09-03 | 2009-07-21 | Florida Turbine Technologies, Inc. | Gas turbine engine with an air cooled bearing |
-
2005
- 2005-11-17 JP JP2005332920A patent/JP4773804B2/ja active Active
-
2006
- 2006-11-16 US US11/600,154 patent/US7661270B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
JP2007138809A (ja) | 2007-06-07 |
US7661270B2 (en) | 2010-02-16 |
US20070107438A1 (en) | 2007-05-17 |
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