IN2014MN00923A - - Google Patents

Info

Publication number
IN2014MN00923A
IN2014MN00923A IN923MUN2014A IN2014MN00923A IN 2014MN00923 A IN2014MN00923 A IN 2014MN00923A IN 923MUN2014 A IN923MUN2014 A IN 923MUN2014A IN 2014MN00923 A IN2014MN00923 A IN 2014MN00923A
Authority
IN
India
Prior art keywords
blades
fluid
stepped parts
seal fins
collision surface
Prior art date
Application number
Inventor
Yoshihiro Kuwamura
Kazuyuki Matsumoto
Hiroharu Oyama
Yoshinori Tanaka
Hidekazu Uehara
Yukinori Machida
Original Assignee
Mitsubishi Hitachi Power Sys
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 Mitsubishi Hitachi Power Sys filed Critical Mitsubishi Hitachi Power Sys
Publication of IN2014MN00923A publication Critical patent/IN2014MN00923A/en

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
    • F01D5/141—Shape, i.e. outer, aerodynamic form
    • 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
    • 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
    • F01D11/001—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between stator blade and rotor
    • 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
    • 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
    • F01D11/12—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator using a rubstrip, e.g. erodible. deformable or resiliently-biased part
    • F01D11/122—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator using a rubstrip, e.g. erodible. deformable or resiliently-biased part with erodable or abradable material
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)

Abstract

The present invention provides a turbine which is equipped with blades and a structure for rotating relative to the blades and in which fluid is circulated. The turbine is equipped with: stepped parts provided to either end sections of the blades in the radial direction or areas of the structure which oppose the end sections of the blades in the radial direction; seal fins which extend from one direction towards the stepped parts and which are disposed such that minute gaps are formed between the stepped parts and the seal fins; a flow collision surface which is provided to a side upstream from the seal fins in the circulation direction of the fluid and into which the fluid collides; a protruding part which protrudes from the flow collision surface in the upstream side direction; and an opposing surface which opposes the flow collision surface.
IN923MUN2014 2011-12-13 2012-12-12 IN2014MN00923A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2011272355A JP5518032B2 (en) 2011-12-13 2011-12-13 Turbine and seal structure
PCT/JP2012/082206 WO2013089139A1 (en) 2011-12-13 2012-12-12 Turbine

Publications (1)

Publication Number Publication Date
IN2014MN00923A true IN2014MN00923A (en) 2015-04-17

Family

ID=48612583

Family Applications (1)

Application Number Title Priority Date Filing Date
IN923MUN2014 IN2014MN00923A (en) 2011-12-13 2012-12-12

Country Status (7)

Country Link
US (1) US10006292B2 (en)
EP (1) EP2792852A4 (en)
JP (1) JP5518032B2 (en)
KR (1) KR101716010B1 (en)
CN (1) CN104024581B (en)
IN (1) IN2014MN00923A (en)
WO (1) WO2013089139A1 (en)

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GB201309580D0 (en) * 2013-05-29 2013-07-10 Siemens Ag Rotor tip clearance
JP6344735B2 (en) 2014-01-30 2018-06-20 三菱重工業株式会社 Seal structure and rotating machine
JP2016089768A (en) * 2014-11-07 2016-05-23 三菱日立パワーシステムズ株式会社 Sealing device and turbomachine
KR101946184B1 (en) * 2015-01-27 2019-02-08 미츠비시 히타치 파워 시스템즈 가부시키가이샤 Rotary machine
JP6712873B2 (en) * 2016-02-29 2020-06-24 三菱日立パワーシステムズ株式会社 Seal structure and turbo machine
JP6638938B2 (en) * 2016-03-25 2020-02-05 三菱日立パワーシステムズ株式会社 Rotating machinery
CN107191258B (en) * 2017-04-12 2019-05-10 西北工业大学 A compact wide-chord, high-pressure head, small-flow motor axial-flow cooling fan
FR3071540B1 (en) * 2017-09-26 2019-10-04 Safran Aircraft Engines LABYRINTH SEAL FOR AN AIRCRAFT TURBOMACHINE
JP6930896B2 (en) * 2017-10-31 2021-09-01 三菱重工業株式会社 Turbines and blades
US10598038B2 (en) 2017-11-21 2020-03-24 Honeywell International Inc. Labyrinth seal with variable tooth heights
US10760442B2 (en) * 2018-01-12 2020-09-01 Raytheon Technologies Corporation Non-contact seal with angled land
JP7267022B2 (en) * 2019-01-31 2023-05-01 三菱重工業株式会社 rotating machinery
JP7122274B2 (en) * 2019-02-27 2022-08-19 三菱重工業株式会社 axial turbine
US11555410B2 (en) * 2020-02-17 2023-01-17 Pratt & Whitney Canada Corp. Labyrinth seal with variable seal clearance
CN115929416B (en) * 2022-12-22 2025-05-30 国能龙源蓝天节能技术有限公司 A blade tip steam seal structure
US12385408B1 (en) * 2024-01-26 2025-08-12 Rtx Corporation Life and performance improvement trenches

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US4643645A (en) 1984-07-30 1987-02-17 General Electric Company Stage for a steam turbine
US4813850A (en) 1988-04-06 1989-03-21 Westinghouse Electric Corp. Integral side entry control stage blade group
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JPH11200810A (en) * 1998-01-09 1999-07-27 Mitsubishi Heavy Ind Ltd Labyrinth seal mechanism
JP2002228014A (en) * 2001-02-05 2002-08-14 Mitsubishi Heavy Ind Ltd Labyrinth seal
JP2002285802A (en) 2001-03-26 2002-10-03 Toshiba Corp Labyrinth sealing device for rotating machinery
US6547522B2 (en) 2001-06-18 2003-04-15 General Electric Company Spring-backed abradable seal for turbomachinery
JP2004332616A (en) * 2003-05-07 2004-11-25 Toshiba Corp Axial turbomachine
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JP2006291967A (en) * 2006-05-29 2006-10-26 Toshiba Corp Axial flow turbine
JP2008057416A (en) 2006-08-31 2008-03-13 Hitachi Ltd Axial flow turbine
JP2008075510A (en) * 2006-09-20 2008-04-03 Toshiba Corp Shaft seal device
JP5228311B2 (en) 2006-11-08 2013-07-03 株式会社Ｉｈｉ Compressor vane
JP4668976B2 (en) 2007-12-04 2011-04-13 株式会社日立製作所 Steam turbine seal structure
JP5101317B2 (en) 2008-01-25 2012-12-19 三菱重工業株式会社 Seal structure
EP2444701B1 (en) 2009-06-16 2020-07-01 Mitsubishi Hitachi Power Systems, Ltd. Shaft seal device
JP2011012631A (en) * 2009-07-03 2011-01-20 Mitsubishi Heavy Ind Ltd Turbine
JP2011080452A (en) * 2009-10-09 2011-04-21 Mitsubishi Heavy Ind Ltd Turbine
JP5484990B2 (en) 2010-03-30 2014-05-07 三菱重工業株式会社 Turbine
JP5574825B2 (en) * 2010-05-26 2014-08-20 三菱重工業株式会社 Seal structure, turbine machine including the same, and power plant including the same
JP5709447B2 (en) 2010-09-28 2015-04-30 三菱日立パワーシステムズ株式会社 Turbine
JP5985351B2 (en) * 2012-10-25 2016-09-06 三菱日立パワーシステムズ株式会社 Axial flow turbine
JP2016089768A (en) * 2014-11-07 2016-05-23 三菱日立パワーシステムズ株式会社 Sealing device and turbomachine

Also Published As

Publication number Publication date
JP2013124554A (en) 2013-06-24
JP5518032B2 (en) 2014-06-11
WO2013089139A1 (en) 2013-06-20
KR20140088572A (en) 2014-07-10
EP2792852A4 (en) 2015-07-22
KR101716010B1 (en) 2017-03-13
CN104024581A (en) 2014-09-03
US10006292B2 (en) 2018-06-26
EP2792852A1 (en) 2014-10-22
CN104024581B (en) 2016-04-13
US20140314579A1 (en) 2014-10-23

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