EP2617951A3 - Tip cover of a steam turbine for the drainage of water droplets - Google Patents

Tip cover of a steam turbine for the drainage of water droplets Download PDF

Info

Publication number
EP2617951A3
EP2617951A3 EP13151786.4A EP13151786A EP2617951A3 EP 2617951 A3 EP2617951 A3 EP 2617951A3 EP 13151786 A EP13151786 A EP 13151786A EP 2617951 A3 EP2617951 A3 EP 2617951A3
Authority
EP
European Patent Office
Prior art keywords
blades
tip
tip cover
leading edge
axial direction
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Withdrawn
Application number
EP13151786.4A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2617951A2 (en
Inventor
Tomohiko Tsukuda
Hiroshi Kawakami
Sakae Kawasaki
Naoki Shibukawa
Shinichiro Ohashi
Yoshifumi Iwasaki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toshiba Corp filed Critical Toshiba Corp
Publication of EP2617951A2 publication Critical patent/EP2617951A2/en
Publication of EP2617951A3 publication Critical patent/EP2617951A3/en
Withdrawn legal-status Critical Current

Links

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
    • 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
    • F01D5/147—Construction, i.e. structural features, e.g. of weight-saving hollow blades
    • 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
    • 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
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/32—Collecting of condensation water; Drainage ; Removing solid particles
    • 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
    • F01D5/22—Blade-to-blade connections, e.g. for damping vibrations
    • F01D5/225—Blade-to-blade connections, e.g. for damping vibrations by shrouding
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2260/00—Function
    • F05B2260/60—Fluid transfer
    • F05B2260/602—Drainage

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
EP13151786.4A 2012-01-19 2013-01-18 Tip cover of a steam turbine for the drainage of water droplets Withdrawn EP2617951A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2012008849A JP5823305B2 (ja) 2012-01-19 2012-01-19 蒸気タービンおよび蒸気タービンの動翼

Publications (2)

Publication Number Publication Date
EP2617951A2 EP2617951A2 (en) 2013-07-24
EP2617951A3 true EP2617951A3 (en) 2014-08-27

Family

ID=47563264

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13151786.4A Withdrawn EP2617951A3 (en) 2012-01-19 2013-01-18 Tip cover of a steam turbine for the drainage of water droplets

Country Status (3)

Country Link
US (1) US20130189077A1 (ja)
EP (1) EP2617951A3 (ja)
JP (1) JP5823305B2 (ja)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6125351B2 (ja) * 2013-06-27 2017-05-10 株式会社東芝 蒸気タービン
JP6066948B2 (ja) * 2014-03-13 2017-01-25 三菱重工業株式会社 シュラウド、動翼体、及び回転機械
CN104061023A (zh) * 2014-06-23 2014-09-24 中国船舶重工集团公司第七�三研究所 一种船用汽轮机除湿级装置
EP3009610B1 (en) * 2014-10-14 2020-11-25 General Electric Technology GmbH Steam turbine rotor seal arrangement
JP6539525B2 (ja) * 2015-07-09 2019-07-03 株式会社東芝 タービン動翼
KR102485641B1 (ko) * 2018-07-13 2023-01-06 미츠비시 파워 가부시키가이샤 플로 가이드, 증기 터빈, 내측 부재 및 플로 가이드의 제조 방법
CN110043336A (zh) * 2019-05-21 2019-07-23 中国船舶重工集团公司第七0三研究所 一种海洋移动式核电汽轮机外缘除湿装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU510583A1 (ru) * 1974-09-30 1976-04-15 Харьковский Филиал Центрального Конструкторского Бюро Главэнергоремонта Турбинна ступень дл работы на влажном паре
JPS5752602A (en) * 1980-09-16 1982-03-29 Toshiba Corp Steam-water separator in steam turbine
US5234318A (en) * 1993-01-22 1993-08-10 Brandon Ronald E Clip-on radial tip seals for steam and gas turbines
US5261785A (en) * 1992-08-04 1993-11-16 General Electric Company Rotor blade cover adapted to facilitate moisture removal
US20040223844A1 (en) * 2003-05-07 2004-11-11 Farrell Alison Carol Method and apparatus to facilitate sealing within turbines
WO2011007506A1 (ja) * 2009-07-14 2011-01-20 株式会社 東芝 蒸気タービン

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3304056A (en) * 1965-03-19 1967-02-14 Hitachi Ltd Turbine blades
JPH11159302A (ja) * 1997-11-25 1999-06-15 Hitachi Ltd 蒸気タービン動翼
JP4387697B2 (ja) * 2003-06-12 2009-12-16 株式会社東芝 蒸気タービンシール装置およびそれを備えた蒸気タービン
JP5025241B2 (ja) * 2006-12-01 2012-09-12 株式会社東芝 タービン動翼および蒸気タービン
JP2009138540A (ja) * 2007-12-04 2009-06-25 Toshiba Corp 蒸気タービンおよび蒸気タービン段落の湿分除去構造
GB2475704A (en) * 2009-11-26 2011-06-01 Alstom Technology Ltd Diverting solid particles in an axial flow steam turbine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU510583A1 (ru) * 1974-09-30 1976-04-15 Харьковский Филиал Центрального Конструкторского Бюро Главэнергоремонта Турбинна ступень дл работы на влажном паре
JPS5752602A (en) * 1980-09-16 1982-03-29 Toshiba Corp Steam-water separator in steam turbine
US5261785A (en) * 1992-08-04 1993-11-16 General Electric Company Rotor blade cover adapted to facilitate moisture removal
US5234318A (en) * 1993-01-22 1993-08-10 Brandon Ronald E Clip-on radial tip seals for steam and gas turbines
US20040223844A1 (en) * 2003-05-07 2004-11-11 Farrell Alison Carol Method and apparatus to facilitate sealing within turbines
WO2011007506A1 (ja) * 2009-07-14 2011-01-20 株式会社 東芝 蒸気タービン

Also Published As

Publication number Publication date
EP2617951A2 (en) 2013-07-24
JP2013147999A (ja) 2013-08-01
US20130189077A1 (en) 2013-07-25
JP5823305B2 (ja) 2015-11-25

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