IN2014DE03228A - - Google Patents

Info

Publication number
IN2014DE03228A
IN2014DE03228A IN3228DE2014A IN2014DE03228A IN 2014DE03228 A IN2014DE03228 A IN 2014DE03228A IN 3228DE2014 A IN3228DE2014 A IN 3228DE2014A IN 2014DE03228 A IN2014DE03228 A IN 2014DE03228A
Authority
IN
India
Prior art keywords
outer ring
diaphragm outer
rotor
shroud
extended
Prior art date
Application number
Inventor
Hisataka Fukushima
Takanori Shibata
Kiyoshi Segawa
Goingwon Lee
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 IN2014DE03228A publication Critical patent/IN2014DE03228A/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
    • 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
    • F01D17/00—Regulating or controlling by varying flow
    • F01D17/02—Arrangement of sensing elements
    • F01D17/08—Arrangement of sensing elements responsive to condition of working-fluid, e.g. pressure
    • 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
    • F01D17/00—Regulating or controlling by varying flow
    • F01D17/10—Final actuators
    • F01D17/12—Final actuators arranged in stator parts
    • 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
    • F01D17/00—Regulating or controlling by varying flow
    • F01D17/10—Final actuators
    • F01D17/12—Final actuators arranged in stator parts
    • F01D17/14—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits
    • F01D17/16—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of nozzle vanes
    • F01D17/162—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of nozzle vanes for axial flow, i.e. the vanes turning around axes which are essentially perpendicular to the rotor centre line
    • 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
    • F01D5/145—Means for influencing boundary layers or secondary circulations
    • 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
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C7/00—Features, 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
    • F02C7/28—Arrangement of seals
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C9/00—Controlling gas-turbine plants; Controlling fuel supply in air- breathing jet-propulsion plants
    • F02C9/16—Control of working fluid flow
    • 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
    • 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
    • F05D2250/40—Movement of components
    • F05D2250/41—Movement of components with one degree of freedom
    • F05D2250/411—Movement of components with one degree of freedom in rotation

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)

Abstract

An axial turbine includes a plurality of ribs provided in such a way as to be sandwiched between the diaphragm outer ring and the axial seal fin in the gap between the shroud and the diaphragm outer ring, the ribs being extended from the diaphragm outer ring toward the shroud in the radial direction of the rotor and in the direction of the rotation axis thereof, and a guide plate provided in such a way as to be present along the axial seal fin and a face of the diaphragm outer ring, opposed to the rotor, so as to be extended in the rotation radial direction of the rotor.
IN3228DE2014 2013-11-08 2014-11-07 IN2014DE03228A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2013232039A JP2015094220A (en) 2013-11-08 2013-11-08 Axial flow turbine

Publications (1)

Publication Number Publication Date
IN2014DE03228A true IN2014DE03228A (en) 2015-07-17

Family

ID=51868085

Family Applications (1)

Application Number Title Priority Date Filing Date
IN3228DE2014 IN2014DE03228A (en) 2013-11-08 2014-11-07

Country Status (6)

Country Link
US (1) US20150132114A1 (en)
EP (1) EP2871324A3 (en)
JP (1) JP2015094220A (en)
KR (1) KR101660120B1 (en)
CN (1) CN104632296B (en)
IN (1) IN2014DE03228A (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB201519869D0 (en) * 2015-11-11 2015-12-23 Rolls Royce Plc Shrouded turbine blade
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
EP3404213A1 (en) * 2017-05-15 2018-11-21 Siemens Aktiengesellschaft Sealing device for a turbo-engine
CN106996389B (en) * 2017-05-26 2020-06-26 西安理工大学 Short-distance inducer without blade top clearance cavitation
JP6930896B2 (en) * 2017-10-31 2021-09-01 三菱重工業株式会社 Turbines and blades
JP7145774B2 (en) * 2019-01-31 2022-10-03 三菱重工業株式会社 rotating machinery
JP7267022B2 (en) * 2019-01-31 2023-05-01 三菱重工業株式会社 rotating machinery
JP7145775B2 (en) * 2019-01-31 2022-10-03 三菱重工業株式会社 rotating machinery
JP7356285B2 (en) * 2019-07-31 2023-10-04 三菱重工業株式会社 axial flow turbine
CN110863863A (en) * 2019-11-29 2020-03-06 四川大学 Moving blade retaining ring structure with grate tooth sealing for gas turbine
CN114934813B (en) * 2022-04-28 2023-12-01 西北工业大学 Partial inlet axial flow impulse turbine and active control method for clearance loss of blade tip of partial inlet axial flow impulse turbine

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS578302A (en) * 1980-06-19 1982-01-16 Hitachi Ltd Internal stage structure of multistage axial-flow machine
JPS6123804A (en) * 1984-07-10 1986-02-01 Hitachi Ltd Turbine stage structure
JP2006104952A (en) * 2004-09-30 2006-04-20 Toshiba Corp Swirling flow preventive device of fluid machine
JP2006138259A (en) * 2004-11-12 2006-06-01 Mitsubishi Heavy Ind Ltd Axial flow turbine
EP1767746A1 (en) * 2005-09-22 2007-03-28 Siemens Aktiengesellschaft Turbine blade/vane and turbine section comprising a plurality of such turbine blades/vanes
US20080118350A1 (en) * 2006-11-16 2008-05-22 General Electric Turbine seal guards
EP2096262A1 (en) * 2008-02-26 2009-09-02 Siemens Aktiengesellschaft Axial flow turbine with low shroud leakage losses
JP5591042B2 (en) * 2010-09-17 2014-09-17 三菱重工業株式会社 Turbine
JP2011106474A (en) * 2011-03-04 2011-06-02 Toshiba Corp Axial flow turbine stage and axial flow turbine
US20130230379A1 (en) * 2012-03-01 2013-09-05 General Electric Company Rotating turbomachine component having a tip leakage flow guide
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

Also Published As

Publication number Publication date
CN104632296A (en) 2015-05-20
US20150132114A1 (en) 2015-05-14
EP2871324A3 (en) 2015-06-17
KR20150053714A (en) 2015-05-18
JP2015094220A (en) 2015-05-18
KR101660120B1 (en) 2016-09-26
CN104632296B (en) 2016-09-28
EP2871324A2 (en) 2015-05-13

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