KR101873156B1 - 터빈 베인 및 이를 포함하는 가스 터빈 - Google Patents

터빈 베인 및 이를 포함하는 가스 터빈 Download PDF

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Publication number
KR101873156B1
KR101873156B1 KR1020170047372A KR20170047372A KR101873156B1 KR 101873156 B1 KR101873156 B1 KR 101873156B1 KR 1020170047372 A KR1020170047372 A KR 1020170047372A KR 20170047372 A KR20170047372 A KR 20170047372A KR 101873156 B1 KR101873156 B1 KR 101873156B1
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KR
South Korea
Prior art keywords
airfoil
cooling
cooling chamber
platform portion
zones
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KR1020170047372A
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English (en)
Korean (ko)
Inventor
정성용
정성철
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두산중공업 주식회사
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Application filed by 두산중공업 주식회사 filed Critical 두산중공업 주식회사
Priority to KR1020170047372A priority Critical patent/KR101873156B1/ko
Priority to US15/838,186 priority patent/US11015466B2/en
Priority to JP2017247062A priority patent/JP6612315B2/ja
Priority to EP18152435.6A priority patent/EP3388629B1/en
Application granted granted Critical
Publication of KR101873156B1 publication Critical patent/KR101873156B1/ko
Assigned to 한국수출입은행 reassignment 한국수출입은행 근질권설정등록 Assignors: 두산중공업 주식회사
Priority to JP2019199441A priority patent/JP6984100B2/ja
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01DNON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D9/00Stators
    • F01D9/02Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
    • F01D9/04Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector
    • F01D9/041Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector using blades
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01DNON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12Blades
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01DNON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D25/00Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/08Cooling; Heating; Heat-insulation
    • F01D25/12Cooling
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01DNON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12Blades
    • F01D5/14Form or construction
    • F01D5/18Hollow blades, i.e. blades with cooling or heating channels or cavities; Heating, heat-insulating or cooling means on blades
    • F01D5/187Convection cooling
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01DNON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D9/00Stators
    • F01D9/06Fluid supply conduits to nozzles or the like
    • F01D9/065Fluid supply or removal conduits traversing the working fluid flow, e.g. for lubrication-, cooling-, or sealing fluids
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02CGAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C3/00Gas-turbine plants characterised by the use of combustion products as the working fluid
    • F02C3/04Gas-turbine plants characterised by the use of combustion products as the working fluid having a turbine driving a compressor
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02CGAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C7/00Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
    • F02C7/12Cooling of plants
    • F02C7/16Cooling of plants characterised by cooling medium
    • F02C7/18Cooling of plants characterised by cooling medium the medium being gaseous, e.g. air
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05DINDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2240/00Components
    • F05D2240/10Stators
    • F05D2240/12Fluid guiding means, e.g. vanes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05DINDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2240/00Components
    • F05D2240/10Stators
    • F05D2240/12Fluid guiding means, e.g. vanes
    • F05D2240/121Fluid guiding means, e.g. vanes related to the leading edge of a stator vane
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05DINDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2240/00Components
    • F05D2240/10Stators
    • F05D2240/12Fluid guiding means, e.g. vanes
    • F05D2240/122Fluid guiding means, e.g. vanes related to the trailing edge of a stator vane
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05DINDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2240/00Components
    • F05D2240/80Platforms for stationary or moving blades
    • F05D2240/81Cooled platforms
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05DINDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00Function
    • F05D2260/20Heat transfer, e.g. cooling
    • F05D2260/202Heat transfer, e.g. cooling by film cooling
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05DINDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00Function
    • F05D2260/20Heat transfer, e.g. cooling
    • F05D2260/204Heat transfer, e.g. cooling by the use of microcircuits
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05DINDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00Function
    • F05D2260/20Heat transfer, e.g. cooling
    • F05D2260/221Improvement of heat transfer
    • F05D2260/2212Improvement of heat transfer by creating turbulence
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T50/00Aeronautics or air transport
    • Y02T50/60Efficient propulsion technologies, e.g. for aircraft

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
KR1020170047372A 2017-04-12 2017-04-12 터빈 베인 및 이를 포함하는 가스 터빈 Active KR101873156B1 (ko)

Priority Applications (5)

Application Number Priority Date Filing Date Title
KR1020170047372A KR101873156B1 (ko) 2017-04-12 2017-04-12 터빈 베인 및 이를 포함하는 가스 터빈
US15/838,186 US11015466B2 (en) 2017-04-12 2017-12-11 Turbine vane and gas turbine including the same
JP2017247062A JP6612315B2 (ja) 2017-04-12 2017-12-22 タービンベーン及びそれを含むガスタービン
EP18152435.6A EP3388629B1 (en) 2017-04-12 2018-01-19 Turbine vane
JP2019199441A JP6984100B2 (ja) 2017-04-12 2019-10-31 タービンベーン及びそれを含むガスタービン

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020170047372A KR101873156B1 (ko) 2017-04-12 2017-04-12 터빈 베인 및 이를 포함하는 가스 터빈

Publications (1)

Publication Number Publication Date
KR101873156B1 true KR101873156B1 (ko) 2018-06-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020170047372A Active KR101873156B1 (ko) 2017-04-12 2017-04-12 터빈 베인 및 이를 포함하는 가스 터빈

Country Status (4)

Country Link
US (1) US11015466B2 (https=)
EP (1) EP3388629B1 (https=)
JP (2) JP6612315B2 (https=)
KR (1) KR101873156B1 (https=)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210002912A (ko) * 2019-07-01 2021-01-11 두산중공업 주식회사 터빈 베인 및 이를 포함하는 가스 터빈
US11421550B2 (en) 2019-06-25 2022-08-23 Doosan Enerbility Co., Ltd. Ring segment, and turbine and gas turbine including the same
KR102676920B1 (ko) 2023-09-11 2024-06-20 터보파워텍(주) 가스터빈 베인 커버 플레이트 브레이징 접합 방법

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10443620B2 (en) * 2018-01-02 2019-10-15 General Electric Company Heat dissipation system for electric aircraft engine
KR102386923B1 (ko) * 2020-03-13 2022-04-14 두산중공업 주식회사 터빈배기부 지지장치, 이를 이용한 터빈 및 가스터빈
CN113202567B (zh) * 2021-05-25 2022-10-28 中国航发沈阳发动机研究所 一种高压涡轮导向冷却叶片缘板的冷却结构设计方法
US12098654B2 (en) 2021-12-21 2024-09-24 Rolls-Royce Corporation Bi-cast trailing edge feed and purge hole cooling scheme

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015105657A (ja) * 2013-12-02 2015-06-08 シーメンス エナジー インコーポレイテッド ダイヤ形の乱流発生器を有するタービン翼冷却通路

Family Cites Families (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR820001469B1 (ko) 1978-01-21 1982-08-21 찰스 에이치. 위버 가스터빈 엔진용 연소장치
JPS5710709A (en) * 1980-05-23 1982-01-20 Avco Corp Air-cooled turbine rotor shraud with confining means
US5197852A (en) 1990-05-31 1993-03-30 General Electric Company Nozzle band overhang cooling
JPH0552102A (ja) 1991-08-23 1993-03-02 Toshiba Corp ガスタービン
US5201847A (en) 1991-11-21 1993-04-13 Westinghouse Electric Corp. Shroud design
US5344283A (en) 1993-01-21 1994-09-06 United Technologies Corporation Turbine vane having dedicated inner platform cooling
US5486090A (en) * 1994-03-30 1996-01-23 United Technologies Corporation Turbine shroud segment with serpentine cooling channels
WO1996013653A1 (en) 1994-10-31 1996-05-09 Westinghouse Electric Corporation Gas turbine blade with a cooled platform
US6254333B1 (en) * 1999-08-02 2001-07-03 United Technologies Corporation Method for forming a cooling passage and for cooling a turbine section of a rotary machine
US6241467B1 (en) 1999-08-02 2001-06-05 United Technologies Corporation Stator vane for a rotary machine
JP2006188962A (ja) * 2004-12-28 2006-07-20 Mitsubishi Heavy Ind Ltd ガスタービン高温部品の冷却構造
US20060269409A1 (en) * 2005-05-27 2006-11-30 Mitsubishi Heavy Industries, Ltd. Gas turbine moving blade having a platform, a method of forming the moving blade, a sealing plate, and a gas turbine having these elements
US8459935B1 (en) 2007-11-19 2013-06-11 Florida Turbine Technologies, Inc. Turbine vane with endwall cooling
US8011881B1 (en) * 2008-01-21 2011-09-06 Florida Turbine Technologies, Inc. Turbine vane with serpentine cooling
US8727725B1 (en) 2009-01-22 2014-05-20 Florida Turbine Technologies, Inc. Turbine vane with leading edge fillet region cooling
US8096772B2 (en) * 2009-03-20 2012-01-17 Siemens Energy, Inc. Turbine vane for a gas turbine engine having serpentine cooling channels within the inner endwall
EP2256297B8 (en) 2009-05-19 2012-10-03 Alstom Technology Ltd Gas turbine vane with improved cooling
US8221055B1 (en) 2009-07-08 2012-07-17 Florida Turbine Technologies, Inc. Turbine stator vane with endwall cooling
US8371800B2 (en) * 2010-03-03 2013-02-12 General Electric Company Cooling gas turbine components with seal slot channels
US8632298B1 (en) * 2011-03-21 2014-01-21 Florida Turbine Technologies, Inc. Turbine vane with endwall cooling
JP5931351B2 (ja) 2011-05-13 2016-06-08 三菱重工業株式会社 タービン静翼
EP2626519A1 (en) 2012-02-09 2013-08-14 Siemens Aktiengesellschaft Turbine assembly, corresponding impingement cooling tube and gas turbine engine
EP2682565B8 (en) 2012-07-02 2016-09-21 General Electric Technology GmbH Cooled blade for a gas turbine
US20140064984A1 (en) * 2012-08-31 2014-03-06 General Electric Company Cooling arrangement for platform region of turbine rotor blade
US9133716B2 (en) 2013-12-02 2015-09-15 Siemens Energy, Inc. Turbine endwall with micro-circuit cooling
KR101682639B1 (ko) 2016-03-11 2016-12-06 연세대학교 산학협력단 다공성 미세구조를 가지는 최외곽 유로를 포함하는 가스터빈 베인 및 블레이드

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015105657A (ja) * 2013-12-02 2015-06-08 シーメンス エナジー インコーポレイテッド ダイヤ形の乱流発生器を有するタービン翼冷却通路

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11421550B2 (en) 2019-06-25 2022-08-23 Doosan Enerbility Co., Ltd. Ring segment, and turbine and gas turbine including the same
KR20210002912A (ko) * 2019-07-01 2021-01-11 두산중공업 주식회사 터빈 베인 및 이를 포함하는 가스 터빈
KR102235024B1 (ko) * 2019-07-01 2021-04-01 두산중공업 주식회사 터빈 베인 및 이를 포함하는 가스 터빈
US11459913B2 (en) 2019-07-01 2022-10-04 Doosan Enerbility Co., Ltd. Turbine vane and gas turbine including the same
KR102676920B1 (ko) 2023-09-11 2024-06-20 터보파워텍(주) 가스터빈 베인 커버 플레이트 브레이징 접합 방법

Also Published As

Publication number Publication date
JP2018178994A (ja) 2018-11-15
JP2020037944A (ja) 2020-03-12
JP6984100B2 (ja) 2021-12-17
US11015466B2 (en) 2021-05-25
US20180298769A1 (en) 2018-10-18
JP6612315B2 (ja) 2019-11-27
EP3388629B1 (en) 2022-05-04
EP3388629A1 (en) 2018-10-17

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