IN2014DE01617A - - Google Patents

Download PDF

Info

Publication number
IN2014DE01617A
IN2014DE01617A IN1617DE2014A IN2014DE01617A IN 2014DE01617 A IN2014DE01617 A IN 2014DE01617A IN 1617DE2014 A IN1617DE2014 A IN 1617DE2014A IN 2014DE01617 A IN2014DE01617 A IN 2014DE01617A
Authority
IN
India
Prior art keywords
passages
rotor blades
flow
vane carrier
steam turbine
Prior art date
Application number
Inventor
Brian Robert Haller
Timothy Stephen Rice
Original Assignee
Alstom Technology Ltd
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 Alstom Technology Ltd filed Critical Alstom Technology Ltd
Publication of IN2014DE01617A publication Critical patent/IN2014DE01617A/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
    • F01D5/02—Blade-carrying members, e.g. rotors
    • F01D5/10—Anti- vibration means
    • 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
    • F01D11/10—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator using sealing fluid, e.g. steam
    • 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
    • F01D19/00—Starting of machines or engines; Regulating, controlling, or safety means in connection therewith
    • 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
    • F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
    • F01D21/003—Arrangements for testing or measuring
    • 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
    • F01D25/04—Antivibration arrangements
    • 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
    • F01D25/04—Antivibration arrangements
    • F01D25/06—Antivibration arrangements for preventing blade vibration
    • 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
    • F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
    • 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
    • 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
    • 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
    • F01D9/00—Stators
    • F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
    • F01D9/04—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Control Of Turbines (AREA)

Abstract

Configuration (10) of the last stage of a steam turbine where rotor blades (2) rotate encircled by a vane carrier (1), such that a plurality of passages (20) are located in the vane carrier (1), such that a fluid is blown through these passages (20) forming a flow that impinges onto the rotor blades (2), the number of passages (20), the location of the passages (20) in the vane carrier (1) and the velocity of the flow impinging onto the rotor blades (2), being calculated in such a way that rotating flow instabilities in the rotor blades (2) when the steam turbine operates at low volumetric flow conditions are avoided.
IN1617DE2014 2013-06-17 2014-06-16 IN2014DE01617A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP13172223 2013-06-17

Publications (1)

Publication Number Publication Date
IN2014DE01617A true IN2014DE01617A (en) 2015-06-19

Family

ID=48669768

Family Applications (1)

Application Number Title Priority Date Filing Date
IN1617DE2014 IN2014DE01617A (en) 2013-06-17 2014-06-16

Country Status (5)

Country Link
US (1) US20140369815A1 (en)
EP (1) EP2816199B1 (en)
JP (1) JP6239447B2 (en)
CN (1) CN104234757B (en)
IN (1) IN2014DE01617A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016094409A1 (en) * 2014-12-09 2016-06-16 Villarreal Anna Methods and devices for female health monitoring
US10662802B2 (en) 2018-01-02 2020-05-26 General Electric Company Controlled flow guides for turbines
JP6916755B2 (en) * 2018-03-09 2021-08-11 三菱重工業株式会社 Rotating machine
WO2019236062A1 (en) 2018-06-05 2019-12-12 Siemens Energy, Inc. Arrangement of a last stage with flow blockers and corresponding method for suppressing rotating flow instability cells
PL3816397T3 (en) * 2019-10-31 2023-06-19 General Electric Company Controlled flow turbine blades
CN112699505B (en) * 2020-12-28 2022-11-25 哈尔滨汽轮机厂有限责任公司 Dynamic stress finite element calculation method for long blade of low-pressure cylinder of nuclear power unit
CN113153453B (en) * 2021-03-02 2022-10-11 哈尔滨工业大学 Steam turbine last stage blade volume flow estimation method, flutter early warning method, system and device

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57180101U (en) * 1981-05-12 1982-11-15
JPS5813105A (en) * 1981-07-16 1983-01-25 Toshiba Corp Steam turbine
JPS63179101A (en) * 1987-01-20 1988-07-23 Mitsubishi Heavy Ind Ltd Axial flow turbine
JPH0430203A (en) * 1990-05-25 1992-02-03 Fanuc Ltd Control system for acceleration/deceleration time constant of robot
JPH0430203U (en) * 1990-07-09 1992-03-11
JPH04308301A (en) * 1991-04-03 1992-10-30 Mitsubishi Heavy Ind Ltd Vibration preventing method for steam turbine blade
US5486091A (en) * 1994-04-19 1996-01-23 United Technologies Corporation Gas turbine airfoil clocking
JP3816150B2 (en) * 1995-07-18 2006-08-30 株式会社荏原製作所 Centrifugal fluid machinery
JP3786458B2 (en) * 1996-01-19 2006-06-14 株式会社東芝 Axial turbine blade
CH697101A5 (en) * 2004-01-31 2008-04-30 Zhengji Zhang Method for elimination of flow instability and rotary replacements in radial, diagonal or axial fluid-flow machines, particularly turbomachines, centrifugal pumps or compressor, involves diverting leakage current by diagonal gap
US7594388B2 (en) * 2005-06-06 2009-09-29 General Electric Company Counterrotating turbofan engine
JP2005299680A (en) * 2005-07-11 2005-10-27 Toshiba Corp Axial-flow turbine blade
US7744343B2 (en) * 2006-09-21 2010-06-29 General Electric Company Method and apparatus for controlling the operation of a steam turbine
US8322972B2 (en) * 2009-11-05 2012-12-04 General Electric Company Steampath flow separation reduction system
EP2434164A1 (en) * 2010-09-24 2012-03-28 Siemens Aktiengesellschaft Variable casing treatment
US10072522B2 (en) * 2011-07-14 2018-09-11 Honeywell International Inc. Compressors with integrated secondary air flow systems
US20130064665A1 (en) * 2011-09-13 2013-03-14 General Electric Company Low pressure steam turbine including pivotable nozzle
JP2013060931A (en) * 2011-09-15 2013-04-04 Toshiba Corp Steam turbine
US20130280050A1 (en) * 2012-04-18 2013-10-24 General Electric Company Turbine vibration reduction system

Also Published As

Publication number Publication date
JP6239447B2 (en) 2017-11-29
CN104234757A (en) 2014-12-24
CN104234757B (en) 2016-10-05
JP2015001228A (en) 2015-01-05
US20140369815A1 (en) 2014-12-18
EP2816199B1 (en) 2021-09-01
EP2816199A2 (en) 2014-12-24
EP2816199A3 (en) 2015-03-04

Similar Documents

Publication Publication Date Title
IN2014DE01617A (en)
PL412269A1 (en) Submerged inlet of flow channel between a rotor vane and a guide vane for the gas turbine with open fan
SA515360767B1 (en) Seal assembly including grooves in a radially outwardly facing side of a platform in a gas turbine engine
EP2775098A3 (en) Integrated strut-vane
GB0903050D0 (en) Shroud-Diffuser assembly
RU2013152735A (en) CASE COOLING CHANNEL
GB201312222D0 (en) Turbomachine with variable-pitch vortex generator
WO2014114662A3 (en) Seal assembly including grooves in an inner shroud in a gas turbine engine
MX339075B (en) Centrifugal impeller and turbomachine.
EP2573364A3 (en) Turbocharger with variable nozzle having labyrinth seal for vanes
WO2018013422A3 (en) Axial flow compressor with splitter blades
RU2014145610A (en) TURBINE HUB WITH SURFACE SURFACE AND TURBOCHARGER CONTAINING SUCH HUB
GB201120105D0 (en) A turbomachine casing assembly
MX2014001013A (en) Centrifugal impeller and turbomachine.
WO2012068466A8 (en) Fluid turbines
MX2019000433A (en) Method for improving turbine compressor performance.
WO2018219414A3 (en) Fan and inlet guide grid for a fan
IN2014DN07825A (en)
WO2013162664A3 (en) Turbine blade having improved flutter capability and increased turbine stage output, corresponding airfoil and turbine rotor stage
JP2010169091A5 (en)
RU2015107543A (en) TURBINE SHOVEL CONSTRUCTION
GB201210287D0 (en) Vertical axis wind turbine
JP2015113835A5 (en)
RU2013125531A (en) STEAM TURBINE, STEAM OF STEAM TURBINE AND METHOD OF OPERATION OF STEAM TURBINE
WO2018140130A3 (en) Method and system for a gas turbine engine with a stage two blade cooling delivery circuit