EP1496196A1 - Turbine à vapeur - Google Patents

Turbine à vapeur Download PDF

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Publication number
EP1496196A1
EP1496196A1 EP03015386A EP03015386A EP1496196A1 EP 1496196 A1 EP1496196 A1 EP 1496196A1 EP 03015386 A EP03015386 A EP 03015386A EP 03015386 A EP03015386 A EP 03015386A EP 1496196 A1 EP1496196 A1 EP 1496196A1
Authority
EP
European Patent Office
Prior art keywords
turbine
steam turbine
pressure turbine
medium
sub
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.)
Withdrawn
Application number
EP03015386A
Other languages
German (de)
English (en)
Inventor
Wilfried Härter
Heinrich Dr. Stüer
Frank Truckenmüller
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.)
Siemens AG
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
Priority to EP03015386A priority Critical patent/EP1496196A1/fr
Priority to EP04763006A priority patent/EP1644613A1/fr
Priority to PCT/EP2004/006555 priority patent/WO2005005783A1/fr
Publication of EP1496196A1 publication Critical patent/EP1496196A1/fr
Withdrawn legal-status Critical Current

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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
    • F01D1/00—Non-positive-displacement machines or engines, e.g. steam turbines
    • F01D1/02—Non-positive-displacement machines or engines, e.g. steam turbines with stationary working-fluid guiding means and bladed or like rotor, e.g. multi-bladed impulse steam turbines
    • F01D1/04—Non-positive-displacement machines or engines, e.g. steam turbines with stationary working-fluid guiding means and bladed or like rotor, e.g. multi-bladed impulse steam turbines traversed by the working-fluid substantially axially
    • 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
    • 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
    • F01D5/06—Rotors for more than one axial stage, e.g. of drum or multiple disc type; Details thereof, e.g. shafts, shaft connections
    • F01D5/063—Welded rotors
    • 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
    • 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
    • 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
    • F01D9/06—Fluid supply conduits to nozzles or the like
    • F01D9/065—Fluid supply or removal conduits traversing the working fluid flow, e.g. for lubrication-, cooling-, or sealing fluids
    • 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
    • F05D2220/00—Application
    • F05D2220/70—Application in combination with
    • F05D2220/72—Application in combination with a steam turbine

Definitions

  • the invention relates to a steam turbine, the first Partial turbine having, with a second turbine part via a transition region fluidly with each other connected is.
  • An embodiment of a one part type of turbine is characterized, for example characterized in that a medium-pressure turbine and a Low-pressure turbine in a common housing are housed.
  • the properties of the rotor are in the Medium-pressure turbine differently than in the low-pressure turbine.
  • the rotor must be in the medium-pressure turbine heat-resistant properties and in the low-pressure turbine have cold-resistant properties.
  • the Rotor diameter in the area between the medium-pressure turbine and the low-pressure turbine different.
  • the rotor diameter at the outlet of a medium-pressure turbine is in turbines with large Abdampfvolumenstrom significantly smaller than that Rotor diameter at the inlet of a low-pressure turbine.
  • the different material properties of the rotor become for smaller outflow surfaces by tempering the rotor balanced. For large outflow areas is from cost and Strength reasons the wave between medium-pressure and Low-pressure turbine welded. When the shaft is welded There will be further requirements for this area between the medium-pressure turbine and the low-pressure turbine posed. It requires additional axial space to z. B. for quality assurance measures, such. B. Ultrasonic testing or laser irradiation to have room.
  • the object of the present invention is a steam turbine with a first turbine part and a second turbine part to be specified with a shortened axial length.
  • the advantage of the invention is, inter alia, to be seen in that in the transition region of the steam turbine despite shortened axial length enough space for e.g. quality assurance measures is present and that the axial Length of the steam turbine is shortened.
  • FIG. 1 shows a longitudinal section through a transition region between a first and a second turbine part.
  • FIG. 1 shows a section through a transition region 1 between a first sub-turbine 2 and a second Partial turbine 3 shown.
  • the first sub-turbine 2 is as Medium-pressure turbine part and the second turbine part 3 is as Low pressure turbine part formed. So could in one Another embodiment, the first turbine part 2 as High pressure turbine part and the second turbine part 3 as Be formed medium-pressure turbine section.
  • a flow medium flows through a flow channel of the first turbine part. 2 and occurs after the last stage, which consists of a vane 4 and a blade 5 consists of the first part turbine 2 off.
  • a rotatably mounted about a rotation axis 6 rotor 7 comprises a first longitudinal section 8, which in the region of first sub-turbine 2 is arranged and a second Longitudinal section 9, in an area of the second Partial turbine 3 is arranged.
  • the rotor 7 in the first longitudinal section 8 heat-resistant and in the second Longitudinal section 9 cold-tough properties.
  • the first Longitudinal section 8 and the second longitudinal section 9 are on an outer region 10 of the rotor 7 by means of a Weld 11 connected.
  • the rotor 7 points in the region of Weld 11 on a diameter 12.
  • the outer area 10 can be found at the end of the diameter 12.
  • the transition region 1 has a flow deflection arrangement 13 on.
  • the flow deflection assembly 13 includes a first one Guide vane 14 one arranged around the rotor 7 Guide vane row and an associated shaft cover 15.
  • the flow medium flows predominantly in one direction is parallel to the axis of rotation 6.
  • the Strömungsumschan extract 13 is opposite by an angle ⁇ the direction 16, which is essentially parallel to Rotation axis 6 is inclined.
  • the angle ⁇ can be values assume between 0 ° and 90 ° and is essentially 45 °.
  • the flow medium flows through the transition region 1 the first vane 14 over to the first blade 17th the second turbine part.
  • the shaft cover 15 is designed such that the Flow medium is deflected to the first vane 14, and attached to the vane 14.
  • transition region 1 it is possible to save axial space.
  • weld 11 can meet the requirements of welding technology become.
  • Another Advantage of this arrangement is that the flow in this Transition area 1 can be influenced in a targeted manner.
  • the Inflow to the first blade row of the low-pressure turbine as well as the flow separation can be optimized or be suppressed.
  • This version also leads tempered rotors to reduce the axial length.
  • a weight reduction from the rotor and a Housing possible. This is a use of lighter Storage allows.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
EP03015386A 2003-07-08 2003-07-08 Turbine à vapeur Withdrawn EP1496196A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP03015386A EP1496196A1 (fr) 2003-07-08 2003-07-08 Turbine à vapeur
EP04763006A EP1644613A1 (fr) 2003-07-08 2004-06-17 Turbine a vapeur
PCT/EP2004/006555 WO2005005783A1 (fr) 2003-07-08 2004-06-17 Turbine a vapeur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03015386A EP1496196A1 (fr) 2003-07-08 2003-07-08 Turbine à vapeur

Publications (1)

Publication Number Publication Date
EP1496196A1 true EP1496196A1 (fr) 2005-01-12

Family

ID=33442757

Family Applications (2)

Application Number Title Priority Date Filing Date
EP03015386A Withdrawn EP1496196A1 (fr) 2003-07-08 2003-07-08 Turbine à vapeur
EP04763006A Ceased EP1644613A1 (fr) 2003-07-08 2004-06-17 Turbine a vapeur

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP04763006A Ceased EP1644613A1 (fr) 2003-07-08 2004-06-17 Turbine a vapeur

Country Status (2)

Country Link
EP (2) EP1496196A1 (fr)
WO (1) WO2005005783A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ302698B6 (cs) * 2009-05-19 2011-09-07 Ceské vysoké ucení technické v Praze Prechodový díl lopatkového stroje
EP3128128A1 (fr) * 2015-08-06 2017-02-08 Siemens Aktiengesellschaft Rotor boulonné pour une turbomachine, en particulier turbine à vapeur

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100456680C (zh) * 2006-12-30 2009-01-28 华为技术有限公司 一种编码方法和编码器

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB190929119A (en) * 1909-12-13 1910-12-08 Charles Algernon Parsons Improvements in and relating to Turbines.
JPS5982501A (ja) * 1982-11-02 1984-05-12 Toshiba Corp 蒸気タ−ビン
EP0534686A1 (fr) * 1991-09-23 1993-03-31 General Electric Company Joint-brosse disposé dans une gorge
EP0985803A1 (fr) * 1998-09-10 2000-03-15 Asea Brown Boveri AG Etage de turbine avec entrée radiale et sortie axiale
US6499946B1 (en) * 1999-10-21 2002-12-31 Kabushiki Kaisha Toshiba Steam turbine rotor and manufacturing method thereof

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5439347A (en) * 1994-08-31 1995-08-08 Brandon; Ronald E. Turbine tip seal damage protection means

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB190929119A (en) * 1909-12-13 1910-12-08 Charles Algernon Parsons Improvements in and relating to Turbines.
JPS5982501A (ja) * 1982-11-02 1984-05-12 Toshiba Corp 蒸気タ−ビン
EP0534686A1 (fr) * 1991-09-23 1993-03-31 General Electric Company Joint-brosse disposé dans une gorge
EP0985803A1 (fr) * 1998-09-10 2000-03-15 Asea Brown Boveri AG Etage de turbine avec entrée radiale et sortie axiale
US6499946B1 (en) * 1999-10-21 2002-12-31 Kabushiki Kaisha Toshiba Steam turbine rotor and manufacturing method thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 008, no. 191 (M - 322) 4 September 1984 (1984-09-04) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ302698B6 (cs) * 2009-05-19 2011-09-07 Ceské vysoké ucení technické v Praze Prechodový díl lopatkového stroje
EP3128128A1 (fr) * 2015-08-06 2017-02-08 Siemens Aktiengesellschaft Rotor boulonné pour une turbomachine, en particulier turbine à vapeur

Also Published As

Publication number Publication date
EP1644613A1 (fr) 2006-04-12
WO2005005783A1 (fr) 2005-01-20

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