EP1733123A1 - Arbre de turbine soude et procede de fabrication - Google Patents

Arbre de turbine soude et procede de fabrication

Info

Publication number
EP1733123A1
EP1733123A1 EP05715934A EP05715934A EP1733123A1 EP 1733123 A1 EP1733123 A1 EP 1733123A1 EP 05715934 A EP05715934 A EP 05715934A EP 05715934 A EP05715934 A EP 05715934A EP 1733123 A1 EP1733123 A1 EP 1733123A1
Authority
EP
European Patent Office
Prior art keywords
turbine
turbine shaft
steam
pressure
region
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Withdrawn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
EP05715934A
Other languages
German (de)
English (en)
Inventor
Werner-Holger Heine
Norbert Thamm
Kai Wieghardt
Uwe Zander
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 EP05715934A priority Critical patent/EP1733123A1/fr
Publication of EP1733123A1 publication Critical patent/EP1733123A1/fr
Withdrawn legal-status Critical Current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
    • F01D5/02—Blade-carrying members, e.g. rotors
    • F01D5/026—Shaft to shaft connections
    • 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
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/28—Selecting particular materials; Particular measures relating thereto; Measures against erosion or corrosion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2201/00—Metals
    • F05C2201/04—Heavy metals
    • F05C2201/0433—Iron group; Ferrous alloys, e.g. steel
    • F05C2201/0466—Nickel
    • 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
    • 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
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/10—Metals, alloys or intermetallic compounds
    • F05D2300/13—Refractory metals, i.e. Ti, V, Cr, Zr, Nb, Mo, Hf, Ta, W
    • F05D2300/132—Chromium
    • 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
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/10—Metals, alloys or intermetallic compounds
    • F05D2300/17—Alloys
    • F05D2300/171—Steel alloys
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49316—Impeller making
    • Y10T29/4932—Turbomachine making

Definitions

  • the invention relates to a longitudinally oriented turbine shaft with a central region and two outer regions fastened to the central region in the longitudinal direction.
  • the invention also relates to a method for producing a turbine shaft.
  • a steam turbine in the sense of the present application is understood to mean any turbine or partial turbine through which a working medium flows in the form of steam.
  • gas and / or air flows through gas turbines as the working medium which, however, is subject to completely different temperature and pressure conditions than the steam in a steam turbine.
  • gas turbines in steam turbines z. B. the working medium flowing into a partial turbine with the highest temperature at the same time the highest pressure.
  • a steam turbine usually comprises a rotatably mounted turbine shaft which is fitted with blades and which is arranged within a housing shell. When heated and pressurized steam flows through the interior of the flow chamber formed by the housing jacket, the steam rotates the turbine shaft via the blade.
  • the blades of the turbine shaft are also referred to as rotor blades.
  • stationary guide vanes which reach into the interstices of the rotor blades, are usually suspended from the casing shell.
  • a guide vane is usually held at a first location along an inside of the steam turbine casing. It is usually part of a guide vane ring which comprises a number of guide vanes which run along an inner circumference on the inside of the Steam turbine housing are arranged. Each vane points with its airfoil radially inwards.
  • Steam turbines or steam partial turbines can be divided into high-pressure, medium-pressure or low-pressure partial turbines.
  • the inlet temperatures and inlet pressures for high-pressure turbine parts can be up to a maximum of 700 ° C or up to 300 bar.
  • a sharp distinction between high-pressure, medium-pressure or low-pressure turbine parts has not been uniformly defined in the professional world.
  • a medium-pressure sub-turbine is present when this medium-pressure sub-turbine is preceded by a high-pressure sub-turbine, which is supplied with live steam and the outflowing steam from the high-pressure sub-turbine is reheated in an intermediate superheater and into the medium-pressure sub-turbine flows.
  • a low-pressure part-turbine is defined according to the DIN 4304 standard as a turbine that receives the relaxed steam from a medium-pressure part-turbine as live steam.
  • Single-case steam turbines which represent a combination of a high-pressure and a medium-pressure steam turbine. These steam turbines are characterized by a common housing and a common turbine shaft and are also referred to as compact partial turbines.
  • Compact turbines are designed in designs that are referred to as "reverse flow” or “straight flow”.
  • the live steam flows into the steam turbine and essentially spreads in the axial direction of the steam turbine through the high-pressure part turbine, then becomes the reheater unit
  • the live steam flows through the outer casing and essentially hits the center of the turbine shaft and then flows through the high-pressure turbine section.
  • the expanded steam flowing out after the high-pressure part turbine is in one
  • Reheater reheats and the steam turbine flows in again at a suitable point in front of the medium pressure turbine.
  • the flow directions of the steam in the high-pressure sub-turbine and in the medium-pressure sub-turbine are opposite.
  • the object of the present invention is to provide a turbine shaft which is particularly suitable for use in compact partial turbines. Another object of the invention is to provide a method for producing a turbine shaft which is suitable for compact turbine parts.
  • the task directed towards the turbine shaft is achieved by a turbine shaft oriented in a longitudinal direction with a central region and two in the longitudinal direction middle area attached outer areas solved, the middle area is made of a more heat-resistant material than the two outer areas.
  • the invention is based on the knowledge that above certain fresh steam inlet temperatures of e.g. above 565 ° C, for certain turbine shaft diameters and from certain speeds, e.g. B. 50 or 60 Hz, a change of material is required. The reason for this is predominantly an increasing fatigue depletion under certain fresh steam inlet temperatures of e.g. above 565 ° C, for certain turbine shaft diameters and from certain speeds, e.g. B. 50 or 60 Hz. The reason for this is predominantly an increasing fatigue depletion under
  • a turbine shaft consisting of three areas in the longitudinal direction creates the possibility of using materials with different properties.
  • a turbine shaft formed from three areas is much cheaper than a monoblock turbine shaft with the same required properties.
  • a turbine shaft made up of three areas is superior to a monoblock turbine shaft on the material side and optimally matched to the special cold and heat-resistant properties.
  • the two outer regions are connected to one another at the middle region by a weld. This creates a relatively inexpensive solution for producing a compact turbine shaft for a compact turbine part.
  • the middle area is made of forged steel with 9 to 12% by weight of chromium and the two outer areas are made of steels with 1 to 2% by weight of chrome.
  • the middle region can be produced from a forged steel with 10% by weight of chromium and the two outer regions from steels with 2% by weight of chromium.
  • the two outer areas can be made of different materials. This creates the possibility of using a suitable material for a particular application.
  • Figure 1 is a sectional view through a compact part turbine
  • Figure 2 is a sectional view through part of a turbine shaft of a compact part turbine.
  • the compact turbine section 1 shows a sectional view of a compact steam turbine 1.
  • the compact turbine section 1 has
  • the compact steam turbine 1 has an inner housing 5 with a high-pressure part 6 and a medium-pressure part 7. Various guide vanes 8 are attached in the high-pressure part 6.
  • a number of guide vanes 9 are also mounted in the medium pressure part 7.
  • the turbine shaft 3 is rotatably supported by means of bearings 10, 11.
  • the inner housing 5 is connected to the outer housing 2.
  • the steam turbine 1 has a high-pressure part 12 and a medium-pressure part 13. In the high pressure part 12 blades 14 are attached. Laufschau eln 15 are also attached in medium pressure.
  • the live steam can also have other temperatures and pressures.
  • the live steam flows through the individual guide vanes 8 and rotor blades 14 in the high-pressure part 12 and is thereby relaxed and cools down.
  • the thermal energy of the live steam is converted into rotational energy of the turbine shaft 3.
  • the turbine shaft 3 is rotated in a direction shown about the axis of rotation 4.
  • the steam flows from an outflow region 17 into an intermediate superheater (not shown in more detail) and is brought to a higher temperature there.
  • This heated steam is then flowed through lines (not shown) into a medium-pressure inflow region 18 into the compact steam turbine 1.
  • the intermediate superheat steam flows through the rotor blade 15 and guide blade 9 and is thereby relaxed and cools down.
  • the conversion of the kinetic energy of the reheated steam into a rotational energy of the turbine shaft 3 causes the turbine shaft 3 to rotate.
  • the expanded steam which flows out in the medium-pressure part 7 flows out of an outflow region 19 from the compact steam turbine 1. This released expanded steam can not be shown in more detail Low pressure turbine parts are used.
  • FIG. 2 shows a section through part of the turbine shaft 3.
  • the turbine shaft 3 consists of a central region 20 and two outer regions 21 and 22.
  • the turbine shaft 3 is mounted in the bearing area 23 with the outer housing 5.
  • the blades 14, 15 are not shown in detail.
  • the live steam first strikes the central region 20 of the turbine shaft 3 and relaxes in the high-pressure part 6.
  • the live steam cools down here.
  • the steam flows back into the central region 20 at a high temperature.
  • the intermediate superheated steam first flows onto the turbine shaft 3 at the location of the medium pressure inflow region 18 and relaxes and cools in the direction of the medium pressure part 7.
  • the steam which has been expanded and cooled in the medium-pressure section 7 then flows out of the compact turbine section 1.
  • the central region 20 of the turbine shaft has a highly heat-resistant material.
  • the highly heat-resistant material is a forged steel with a chromium content of 9 to 12% by weight.
  • the central area can also consist of nickel-based materials.
  • the two outer regions 21 and 22 should consist of 10 to 12% by weight of chromium.
  • the two outer regions 21 and 22 consist of a less heat-resistant material compared to the central region 20.
  • the two outer regions 21 and 22 can be produced from steels with 1 to 2% by weight chromium, or essentially from 3.5% by weight nickel.
  • the two outer regions 21 and 22 do not have to be made of the same material. Rather, it is expedient to produce the two outer regions 21 and 22 from different materials.
  • the central region 20 and the outer region 21 are connected to one another by means of a weld 24.
  • the central region 20 is also connected to the outer region 22 via a further weld 25.
  • the turbine shaft 3 is designed in a longitudinal direction that corresponds to the axis of rotation 4.
  • the middle region 20 is made of a nickel-based material
  • the outer regions can be made of a steel with 9 to 12% by weight chromium.
  • the turbine shaft 3 is manufactured as described below.
  • the central area 20 is made of a heat-resistant material.
  • One outer region 21 is made of a less heat-resistant material than that of the central region 20.
  • the second outer region 22 is also made of a less heat-resistant material than that of the central region 20.
  • the central region 20 is then welded to the two outer regions 21, 22.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

L'invention concerne un arbre de turbine (3) orienté dans la direction longitudinale (4), présentant une zone centrale (20) et deux zones extérieures (21, 22) fixées à la zone centrale (20) dans la direction longitudinale (4). Ladite zone centrale (20) est réalisée dans un matériau présentant une meilleure résistance aux températures élevées que le matériau des deux zones extérieures (21, 22).
EP05715934A 2004-03-17 2005-03-10 Arbre de turbine soude et procede de fabrication Withdrawn EP1733123A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP05715934A EP1733123A1 (fr) 2004-03-17 2005-03-10 Arbre de turbine soude et procede de fabrication

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP04006394A EP1577494A1 (fr) 2004-03-17 2004-03-17 Arbre soudé de turbine à vapeur et procédé de fabrication
PCT/EP2005/002558 WO2005093218A1 (fr) 2004-03-17 2005-03-10 Arbre de turbine soude et procede de fabrication
EP05715934A EP1733123A1 (fr) 2004-03-17 2005-03-10 Arbre de turbine soude et procede de fabrication

Publications (1)

Publication Number Publication Date
EP1733123A1 true EP1733123A1 (fr) 2006-12-20

Family

ID=34833624

Family Applications (2)

Application Number Title Priority Date Filing Date
EP04006394A Withdrawn EP1577494A1 (fr) 2004-03-17 2004-03-17 Arbre soudé de turbine à vapeur et procédé de fabrication
EP05715934A Withdrawn EP1733123A1 (fr) 2004-03-17 2005-03-10 Arbre de turbine soude et procede de fabrication

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP04006394A Withdrawn EP1577494A1 (fr) 2004-03-17 2004-03-17 Arbre soudé de turbine à vapeur et procédé de fabrication

Country Status (4)

Country Link
US (1) US7771166B2 (fr)
EP (2) EP1577494A1 (fr)
CN (1) CN100420825C (fr)
WO (1) WO2005093218A1 (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1800787B1 (fr) 2005-12-20 2009-12-02 Siemens Aktiengesellschaft Procédé pour joindre par brasage ou soudage deux pièces metalliques constituant un arbre, notamment un arbre d'une turbine à vapeur
EP1837483A1 (fr) * 2006-03-20 2007-09-26 Siemens Aktiengesellschaft Arbre soudé pour turbomachines
JP2007291966A (ja) * 2006-04-26 2007-11-08 Toshiba Corp 蒸気タービンおよびタービンロータ
EP1860279A1 (fr) * 2006-05-26 2007-11-28 Siemens Aktiengesellschaft Arbre soudé de turbine basse pression
US20110100961A1 (en) * 2009-11-05 2011-05-05 Alstom Technology Ltd Welding process for producing rotating turbomachinery
KR101353840B1 (ko) 2009-12-21 2014-01-20 미츠비시 쥬고교 가부시키가이샤 단류형 터빈에 있어서의 냉각 방법 및 장치
EP2412473A1 (fr) * 2010-07-27 2012-02-01 Siemens Aktiengesellschaft Procédé de soudure de demi-coques
US20120177494A1 (en) * 2011-01-06 2012-07-12 General Electric Company Steam turbine rotor with mechanically coupled high and low temperature sections using different materials
US8944761B2 (en) 2011-01-21 2015-02-03 General Electric Company Welded rotor, a steam turbine having a welded rotor and a method for producing a welded rotor
US20130177431A1 (en) * 2012-01-06 2013-07-11 General Electric Company Multi-material rotor, a steam turbine having a multi-material rotor and a method for producing a multi-material rotor
US9039365B2 (en) 2012-01-06 2015-05-26 General Electric Company Rotor, a steam turbine and a method for producing a rotor
CN103470309A (zh) * 2013-08-21 2013-12-25 东方电气集团东方汽轮机有限公司 一种分段组合式转子
DE102017211295A1 (de) * 2017-07-03 2019-01-03 Siemens Aktiengesellschaft Dampfturbine und Verfahren zum Betreiben derselben
DE102017128261A1 (de) * 2017-11-29 2019-05-29 Man Energy Solutions Se Laufschaufel einer Strömungsmaschine und Verfahren zum Herstellen derselben

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Publication number Priority date Publication date Assignee Title
DE10052176A1 (de) * 1999-10-21 2001-06-21 Toshiba Kawasaki Kk Dampfturbinenrotor und Verfahren zur Herstellung desselben

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BE787441A (fr) * 1971-08-23 1973-02-12 Alsthom Cgee Rotor soude
JPS57176305A (en) * 1981-04-24 1982-10-29 Hitachi Ltd Steam turbine rotor
US4962586A (en) * 1989-11-29 1990-10-16 Westinghouse Electric Corp. Method of making a high temperature - low temperature rotor for turbines
US6358004B1 (en) * 1996-02-16 2002-03-19 Hitachi, Ltd. Steam turbine power-generation plant and steam turbine
CN1291133C (zh) * 1996-02-16 2006-12-20 株式会社日立制作所 蒸汽涡轮机发电设备、蒸汽涡轮机叶片及该叶片的制造方法
JP3999402B2 (ja) * 1998-06-09 2007-10-31 三菱重工業株式会社 蒸気タービンの異材溶接ロータ
DE10114612A1 (de) * 2001-03-23 2002-09-26 Alstom Switzerland Ltd Rotor für eine Turbomaschine sowie Verfahren zur Herstellung eines solchen Rotors
US6962483B2 (en) * 2003-06-18 2005-11-08 General Electric Company Multiple alloy rotor
US6971850B2 (en) * 2003-06-18 2005-12-06 General Electric Company Multiple alloy rotor and method therefor
US7065872B2 (en) * 2003-06-18 2006-06-27 General Electric Company Method of processing a multiple alloy rotor
DE10348424A1 (de) * 2003-10-14 2005-05-19 Alstom Technology Ltd Geschweisster Rotor für eine thermische Maschine sowie Verfahren zur Herstellung eines solchen Rotors

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Publication number Priority date Publication date Assignee Title
DE10052176A1 (de) * 1999-10-21 2001-06-21 Toshiba Kawasaki Kk Dampfturbinenrotor und Verfahren zur Herstellung desselben

Also Published As

Publication number Publication date
CN100420825C (zh) 2008-09-24
US7771166B2 (en) 2010-08-10
CN1954133A (zh) 2007-04-25
EP1577494A1 (fr) 2005-09-21
WO2005093218A1 (fr) 2005-10-06
US20080159849A1 (en) 2008-07-03

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