RU2015103596A - LAST TURBINE WORKING SHOVEL, HAVING CUTS ON THE FRONT EDGE, RELATED ROTARY ASSEMBLY AND STEAM TURBINE - Google Patents
LAST TURBINE WORKING SHOVEL, HAVING CUTS ON THE FRONT EDGE, RELATED ROTARY ASSEMBLY AND STEAM TURBINE Download PDFInfo
- Publication number
- RU2015103596A RU2015103596A RU2015103596A RU2015103596A RU2015103596A RU 2015103596 A RU2015103596 A RU 2015103596A RU 2015103596 A RU2015103596 A RU 2015103596A RU 2015103596 A RU2015103596 A RU 2015103596A RU 2015103596 A RU2015103596 A RU 2015103596A
- Authority
- RU
- Russia
- Prior art keywords
- blade
- free flow
- rotor assembly
- working
- steam turbine
- Prior art date
Links
Classifications
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- 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
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/12—Blades
- F01D5/14—Form or construction
- F01D5/16—Form or construction for counteracting blade vibration
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- 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
- F05D2220/00—Application
- F05D2220/30—Application in turbines
- F05D2220/31—Application in turbines in steam turbines
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- 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
- F05D2220/00—Application
- F05D2220/30—Application in turbines
- F05D2220/32—Application in turbines in gas turbines
- F05D2220/321—Application in turbines in gas turbines for a special turbine stage
- F05D2220/3215—Application in turbines in gas turbines for a special turbine stage the last stage of the turbine
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- 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
- F05D2240/20—Rotors
- F05D2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
- F05D2240/303—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor related to the leading edge of a rotor blade
-
- 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
- F05D2250/00—Geometry
- F05D2250/60—Structure; Surface texture
- F05D2250/61—Structure; Surface texture corrugated
-
- 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
- F05D2260/00—Function
- F05D2260/94—Functionality given by mechanical stress related aspects such as low cycle fatigue [LCF] of high cycle fatigue [HCF]
- F05D2260/941—Functionality given by mechanical stress related aspects such as low cycle fatigue [LCF] of high cycle fatigue [HCF] particularly aimed at mechanical or thermal stress reduction
Abstract
1. Рабочая лопатка паровой турбины, имеющаяпереднюю кромку, на которую при работе набегает свободный поток и которая имеет выемки в верхней части рабочей лопатки, изаднюю кромку для выпуска свободного потока.2. Рабочая лопатка по п. 1, в которой ее верхняя часть составляет по меньшей мере 10% длины лопатки.3. Рабочая лопатка по п. 1, в которой ее верхняя часть составляет не более 20% длины лопатки.4. Рабочая лопатка по п. 1, в которой во время нормальной работы свободный поток проходит во всей длине лопатки.5. Рабочая лопатка по п. 1, в которой во время малого свободного потока свободный поток проходит только через верхнюю часть лопатки.6. Рабочая лопатка по п. 1, которая является лопаткой последней ступени турбины.7. Роторный узел, содержащийроторный корпус с пазами,паротурбинные рабочие лопатки, расположенные в указанных пазах роторного корпуса, причем по меньшей мере одна из указанных лопаток имеет переднюю кромку, на которую при работе набегает свободный поток и которая имеет выемки в верхней части лопатки, и заднюю кромку для выпуска свободного потока.8. Роторный узел по п. 7, в котором верхняя часть указанной по меньшей мере одной лопатки составляет по меньшей мере 10% длины лопатки.9. Роторный узел по п. 7, в котором верхняя часть указанной по меньшей мере одной лопатки составляет не более 20% длины лопатки.10. Роторный узел по п. 7, в котором во время нормальной работы свободный поток проходит во всей длине указанной по меньшей мере одной лопатки.11. Роторный узел по п. 7, в котором во время малого свободного потока свободный поток проходит только через верхнюю часть указанной по меньшей мере одной лопатки.12. Роторный узел по п. 7, в котором указанная по меньшей мере одна лопатка является1. The working blade of a steam turbine having a leading edge, on which free flow runs during operation and which has recesses in the upper part of the working blade, and a common edge for discharging free flow. 2. A working blade according to claim 1, in which its upper part is at least 10% of the length of the blade. The working blade according to claim 1, in which its upper part is not more than 20% of the length of the blade. 4. The working blade according to claim 1, wherein during normal operation the free flow passes along the entire length of the blade. The working blade according to claim 1, wherein during a small free flow the free flow passes only through the upper part of the blade. The working blade according to claim 1, which is the blade of the last stage of the turbine. 7. A rotor assembly comprising a rotor housing with grooves, steam-turbine rotor blades located in said grooves of the rotor housing, at least one of these blades has a leading edge, which during operation runs in a free flow and which has recesses in the upper part of the blade, and a trailing edge to release free flow. 8. A rotor assembly according to claim 7, wherein the upper part of said at least one blade comprises at least 10% of the blade length. The rotor assembly according to claim 7, wherein the upper part of said at least one blade comprises not more than 20% of the blade length. The rotor assembly according to claim 7, wherein during normal operation the free flow passes over the entire length of said at least one blade. The rotor assembly according to claim 7, wherein during a small free flow, the free flow passes only through the upper part of said at least one blade. The rotor assembly of claim 7, wherein said at least one blade is
Claims (20)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/568,609 | 2012-08-07 | ||
US13/568,609 US20140044556A1 (en) | 2012-08-07 | 2012-08-07 | Last stage blade including a plurality of leading edge indentations |
PCT/US2013/053713 WO2014025729A1 (en) | 2012-08-07 | 2013-08-06 | Last stage turbine blade including a plurality of leading edge indentations, corresponding rotor assembly and steam turbine |
Publications (1)
Publication Number | Publication Date |
---|---|
RU2015103596A true RU2015103596A (en) | 2016-09-27 |
Family
ID=49001070
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RU2015103596A RU2015103596A (en) | 2012-08-07 | 2013-08-06 | LAST TURBINE WORKING SHOVEL, HAVING CUTS ON THE FRONT EDGE, RELATED ROTARY ASSEMBLY AND STEAM TURBINE |
Country Status (6)
Country | Link |
---|---|
US (1) | US20140044556A1 (en) |
EP (1) | EP2893144A1 (en) |
JP (1) | JP2015525854A (en) |
CN (1) | CN104755704B (en) |
RU (1) | RU2015103596A (en) |
WO (1) | WO2014025729A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108035775A (en) * | 2018-01-08 | 2018-05-15 | 翁志远 | Rotor, steam turbine and prime mover equipment of steam turbine |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1862827A (en) * | 1930-01-22 | 1932-06-14 | Parsons | Steam turbine |
US3304056A (en) * | 1965-03-19 | 1967-02-14 | Hitachi Ltd | Turbine blades |
JPS6380003A (en) * | 1986-09-25 | 1988-04-11 | Hitachi Ltd | Exhaust diffuser cascade of axial-flow turbine |
JPS63179101A (en) * | 1987-01-20 | 1988-07-23 | Mitsubishi Heavy Ind Ltd | Axial flow turbine |
US6139258A (en) * | 1987-03-30 | 2000-10-31 | United Technologies Corporation | Airfoils with leading edge pockets for reduced heat transfer |
US5641268A (en) * | 1991-09-17 | 1997-06-24 | Rolls-Royce Plc | Aerofoil members for gas turbine engines |
JPH07158402A (en) * | 1993-12-10 | 1995-06-20 | Mitsubishi Heavy Ind Ltd | Moving blade for turbomachinery |
JP3771967B2 (en) * | 1996-05-21 | 2006-05-10 | 株式会社東芝 | Axial flow turbine |
KR20010005910A (en) * | 1997-04-01 | 2001-01-15 | 칼 하인쯔 호르닝어 | Surface structure for the wall of a flow channel or a turbine blade |
US6428278B1 (en) * | 2000-12-04 | 2002-08-06 | United Technologies Corporation | Mistuned rotor blade array for passive flutter control |
US6422821B1 (en) * | 2001-01-09 | 2002-07-23 | General Electric Company | Method and apparatus for reducing turbine blade tip temperatures |
EP1607573B2 (en) * | 2004-06-02 | 2012-10-03 | Rolls-Royce Deutschland Ltd & Co KG | Compressor blade with reduced aerodynamic vibration induction |
CN101042054A (en) * | 2006-03-24 | 2007-09-26 | 中国科学院工程热物理研究所 | Unshrouded turbine and its blade tip with groove |
US7901523B2 (en) * | 2007-11-16 | 2011-03-08 | General Electric Company | Uniform heat treatment process for hardening steel |
US8056227B2 (en) * | 2009-02-06 | 2011-11-15 | General Electric Company | Turbine blade having material block and related method |
US8277189B2 (en) * | 2009-11-12 | 2012-10-02 | General Electric Company | Turbine blade and rotor |
-
2012
- 2012-08-07 US US13/568,609 patent/US20140044556A1/en not_active Abandoned
-
2013
- 2013-08-06 EP EP13750793.5A patent/EP2893144A1/en not_active Withdrawn
- 2013-08-06 JP JP2015526621A patent/JP2015525854A/en active Pending
- 2013-08-06 CN CN201380042146.6A patent/CN104755704B/en not_active Expired - Fee Related
- 2013-08-06 WO PCT/US2013/053713 patent/WO2014025729A1/en active Application Filing
- 2013-08-06 RU RU2015103596A patent/RU2015103596A/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
CN104755704B (en) | 2016-12-14 |
US20140044556A1 (en) | 2014-02-13 |
WO2014025729A8 (en) | 2015-03-05 |
JP2015525854A (en) | 2015-09-07 |
WO2014025729A1 (en) | 2014-02-13 |
CN104755704A (en) | 2015-07-01 |
EP2893144A1 (en) | 2015-07-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FA92 | Acknowledgement of application withdrawn (lack of supplementary materials submitted) |
Effective date: 20171003 |