JPS6445904A - Steam turbine nozzle - Google Patents

Steam turbine nozzle

Info

Publication number
JPS6445904A
JPS6445904A JP62202453A JP20245387A JPS6445904A JP S6445904 A JPS6445904 A JP S6445904A JP 62202453 A JP62202453 A JP 62202453A JP 20245387 A JP20245387 A JP 20245387A JP S6445904 A JPS6445904 A JP S6445904A
Authority
JP
Japan
Prior art keywords
nozzle
blade
steam turbine
injection hole
tip part
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.)
Pending
Application number
JP62202453A
Other languages
Japanese (ja)
Inventor
Kenji Natori
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
Priority to JP62202453A priority Critical patent/JPS6445904A/en
Publication of JPS6445904A publication Critical patent/JPS6445904A/en
Pending 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
    • 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
    • F05D2260/00—Function
    • F05D2260/60—Fluid transfer
    • F05D2260/602—Drainage

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

PURPOSE:To adequately remove drain from the tip part of a nozzle blade without lowering turbine performance, by a method wherein liquid flowing the tip part of the nozzle blade is sucked from a drain groove, and is injected through an injection hole toward the root part of a moving blade. CONSTITUTION:Each of final two-stage step parts L-1 and L-0 of a steam turbine is formed with a steam turbine nozzle 1 and a moving blade 2 situated on the downstream side of a steam flow A. The steam turbine nozzle 1 is formed with a nozzle outer ring 3, a plurality of nozzle blades 4, and a nozzle inner ring 5. In this constitution, a radially extended drain groove 8 is formed in the tip part on the belly side of each nozzle blade 4, and the groove 8 is connected to a conducting passage 13 through a guide passage 9. Meanwhile, the conducting passage 13 is formed such that it is extended in the nozzle blade 4 radially of a nozzle. An injection hole 14 is formed in the nozzle inner ring 5, and the both ends of the injection hole 14 are respectively opened to the conducting passage 13 and the moving blade 2.
JP62202453A 1987-08-13 1987-08-13 Steam turbine nozzle Pending JPS6445904A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62202453A JPS6445904A (en) 1987-08-13 1987-08-13 Steam turbine nozzle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62202453A JPS6445904A (en) 1987-08-13 1987-08-13 Steam turbine nozzle

Publications (1)

Publication Number Publication Date
JPS6445904A true JPS6445904A (en) 1989-02-20

Family

ID=16457776

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62202453A Pending JPS6445904A (en) 1987-08-13 1987-08-13 Steam turbine nozzle

Country Status (1)

Country Link
JP (1) JPS6445904A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1091094A1 (en) * 1998-05-27 2001-04-11 Mitsubishi Heavy Industries, Ltd. Steam turbine stationary blade
US6474942B2 (en) * 2000-01-03 2002-11-05 General Electric Company Airfoil configured for moisture removal from steam turbine flow path
US7422415B2 (en) * 2006-05-23 2008-09-09 General Electric Company Airfoil and method for moisture removal and steam injection
JP2010151056A (en) * 2008-12-25 2010-07-08 Toshiba Corp Steam turbine
US20110135447A1 (en) * 2009-12-07 2011-06-09 General Electric Company System for reducing the level of erosion affecting a component
CN103161512A (en) * 2011-12-12 2013-06-19 诺沃皮尼奥内有限公司 Steam turbine, blade, and method
EP2612993B1 (en) * 2012-01-05 2018-07-04 General Electric Company Slotted turbine airfoil
CN110945212A (en) * 2017-09-05 2020-03-31 三菱日立电力系统株式会社 Steam turbine blade, steam turbine, and method for manufacturing steam turbine blade
WO2022034783A1 (en) * 2020-08-13 2022-02-17 三菱パワー株式会社 Stator blade segment and steam turbine provided with same

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6305902B1 (en) 1998-05-27 2001-10-23 Mitsubishi Heavy Industries, Ltd. Steam turbine stationary blade
EP1091094A1 (en) * 1998-05-27 2001-04-11 Mitsubishi Heavy Industries, Ltd. Steam turbine stationary blade
US6474942B2 (en) * 2000-01-03 2002-11-05 General Electric Company Airfoil configured for moisture removal from steam turbine flow path
US7422415B2 (en) * 2006-05-23 2008-09-09 General Electric Company Airfoil and method for moisture removal and steam injection
JP2010151056A (en) * 2008-12-25 2010-07-08 Toshiba Corp Steam turbine
GB2475957B (en) * 2009-12-07 2017-02-22 Gen Electric System for removing moisture from a steam turbine
US20110135447A1 (en) * 2009-12-07 2011-06-09 General Electric Company System for reducing the level of erosion affecting a component
US8568090B2 (en) * 2009-12-07 2013-10-29 General Electric Company System for reducing the level of erosion affecting a component
CN103161512A (en) * 2011-12-12 2013-06-19 诺沃皮尼奥内有限公司 Steam turbine, blade, and method
EP2612993B1 (en) * 2012-01-05 2018-07-04 General Electric Company Slotted turbine airfoil
CN110945212A (en) * 2017-09-05 2020-03-31 三菱日立电力系统株式会社 Steam turbine blade, steam turbine, and method for manufacturing steam turbine blade
CN110945212B (en) * 2017-09-05 2022-07-08 三菱重工业株式会社 Steam turbine blade, steam turbine, and method for manufacturing steam turbine blade
US11486255B2 (en) 2017-09-05 2022-11-01 Mitsubishi Heavy Industries, Ltd. Steam turbine blade, steam turbine, and method for manufacturing steam turbine blade
WO2022034783A1 (en) * 2020-08-13 2022-02-17 三菱パワー株式会社 Stator blade segment and steam turbine provided with same
US12091983B2 (en) 2020-08-13 2024-09-17 Mitsubishi Heavy Industries, Ltd. Stator vane segment and steam turbine provided with same

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