ATE492710T1 - STEAM TURBINE WITH CONTROLLED COOLANT SUPPLY - Google Patents

STEAM TURBINE WITH CONTROLLED COOLANT SUPPLY

Info

Publication number
ATE492710T1
ATE492710T1 AT07016847T AT07016847T ATE492710T1 AT E492710 T1 ATE492710 T1 AT E492710T1 AT 07016847 T AT07016847 T AT 07016847T AT 07016847 T AT07016847 T AT 07016847T AT E492710 T1 ATE492710 T1 AT E492710T1
Authority
AT
Austria
Prior art keywords
cooling
cooling pipe
steam turbine
coolant supply
inflow
Prior art date
Application number
AT07016847T
Other languages
German (de)
Inventor
Lazzer Armin De
Original Assignee
Siemens Ag
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 Siemens Ag filed Critical Siemens Ag
Application granted granted Critical
Publication of ATE492710T1 publication Critical patent/ATE492710T1/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
    • F01D11/02—Preventing or minimising internal leakage of working-fluid, e.g. between stages by non-contact sealings, e.g. of labyrinth type
    • F01D11/04—Preventing or minimising internal leakage of working-fluid, e.g. between stages by non-contact sealings, e.g. of labyrinth type using sealing fluid, e.g. steam
    • F01D11/06—Control thereof
    • 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
    • F01D5/08—Heating, heat-insulating or cooling means
    • 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
    • F05D2240/00—Components
    • F05D2240/10—Stators
    • F05D2240/12—Fluid guiding means, e.g. vanes
    • F05D2240/128—Nozzles
    • 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
    • F05D2260/20—Heat transfer, e.g. cooling
    • F05D2260/232—Heat transfer, e.g. cooling characterized by the cooling medium
    • F05D2260/2322—Heat transfer, e.g. cooling characterized by the cooling medium steam
    • 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
    • F05D2270/00—Control
    • F05D2270/30—Control parameters, e.g. input parameters
    • F05D2270/301—Pressure
    • F05D2270/3015—Pressure differential pressure

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)

Abstract

The turbine has a cooling pipe (11) for cooling thermally loaded region of the turbine, and an inflow region (9) for inflow of a fresh steam. A nozzle (14) e.g. laval nozzle, is provided in the cooling pipe for limiting mass flow of a cooling medium, which flows in the cooling pipe. An exhaust channel (17) fluidically connects the cooling pipe with the inflow region, and an exhaust valve (18) e.g. pressure control valve, is formed such that the cooling medium flows into the inflow region through the exhaust channel.
AT07016847T 2007-08-28 2007-08-28 STEAM TURBINE WITH CONTROLLED COOLANT SUPPLY ATE492710T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07016847A EP2031190B1 (en) 2007-08-28 2007-08-28 Steam turbine with regulated coolant feed

Publications (1)

Publication Number Publication Date
ATE492710T1 true ATE492710T1 (en) 2011-01-15

Family

ID=38988033

Family Applications (1)

Application Number Title Priority Date Filing Date
AT07016847T ATE492710T1 (en) 2007-08-28 2007-08-28 STEAM TURBINE WITH CONTROLLED COOLANT SUPPLY

Country Status (3)

Country Link
EP (1) EP2031190B1 (en)
AT (1) ATE492710T1 (en)
DE (1) DE502007006039D1 (en)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58178806A (en) * 1982-04-14 1983-10-19 Toshiba Corp Expansion joint of steam turbine
JPS58200001A (en) * 1982-05-18 1983-11-21 Toshiba Corp Cooling device of steam turbine rotor
US5412937A (en) * 1993-11-04 1995-05-09 General Electric Company Steam cycle for combined cycle with steam cooled gas turbine
US5628617A (en) * 1996-08-12 1997-05-13 Demag Delavel Turbomachinery Corp. Turbocare Division Expanding bell seal
DE59711075D1 (en) * 1997-12-24 2004-01-15 Alstom Schweiz Ag Baden Combined multi-pressure steam turbine
JP4095718B2 (en) * 1998-06-04 2008-06-04 三菱重工業株式会社 Leakage reduction structure inside the steam turbine
DE10002774A1 (en) * 2000-01-22 2001-07-26 Abb Patent Gmbh Sealing steam feed unit for the shaft seals in a steam turbine has a cooling unit clamped between two flanges with a diffuser passage and a jet opening for cooling water in the diffuser mantle surface
US6729386B1 (en) * 2001-01-22 2004-05-04 Stanley H. Sather Pulp drier coil with improved header

Also Published As

Publication number Publication date
DE502007006039D1 (en) 2011-02-03
EP2031190B1 (en) 2010-12-22
EP2031190A1 (en) 2009-03-04

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