EP1860279A1 - Geschweisste ND-Turbinenwelle - Google Patents

Geschweisste ND-Turbinenwelle Download PDF

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Publication number
EP1860279A1
EP1860279A1 EP06010925A EP06010925A EP1860279A1 EP 1860279 A1 EP1860279 A1 EP 1860279A1 EP 06010925 A EP06010925 A EP 06010925A EP 06010925 A EP06010925 A EP 06010925A EP 1860279 A1 EP1860279 A1 EP 1860279A1
Authority
EP
European Patent Office
Prior art keywords
inflow
shaft
gew
inflow part
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Withdrawn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
EP06010925A
Other languages
German (de)
English (en)
French (fr)
Inventor
Thorsten-Ulf Dr. Kern
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 EP06010925A priority Critical patent/EP1860279A1/de
Priority to EP07712292A priority patent/EP2024605A1/de
Priority to JP2009511422A priority patent/JP5036811B2/ja
Priority to US12/227,468 priority patent/US8083492B2/en
Priority to PCT/EP2007/051743 priority patent/WO2007137884A1/de
Priority to CN200780019467.9A priority patent/CN101454541B/zh
Publication of EP1860279A1 publication Critical patent/EP1860279A1/de
Withdrawn legal-status Critical Current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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
    • 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
    • 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
    • F05D2300/131—Molybdenum
    • 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
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S464/00—Rotary shafts, gudgeons, housings, and flexible couplings for rotary shafts
    • Y10S464/902—Particular material

Definitions

  • the invention relates to a turbomachine which has a low-pressure region, with at least one shaft, wherein the low-pressure region has an inflow region.
  • Such a turbomachine is designed for example as a steam turbine.
  • Such turbomachines have an inflow region and adjoining flow regions or outflow regions, the flow regions having a blade lattice formed from rotor blades and guide vanes.
  • double-flow turbomachines are formed, wherein a flow medium, for example steam, flows over the inflow area into the flow areas arranged to the left and right in the axial direction or in the longitudinal direction flows.
  • a flow medium for example steam
  • the flow medium flows in the opposite direction with respect to the respective other flow region.
  • the invention is therefore based on the object to improve a turbomachine of the type mentioned, in particular the at least one shaft in the low pressure region of the turbomachine with simple means to the effect that these higher temperatures or operating temperatures can be suspended.
  • the shaft has a heat-resistant material at least at its inlet part arranged in the inflow region.
  • the inflow part preferably comprises a material of the 1-2.5% Cr steels, in particular a material with the designation 22CrNiMoWV8-8 (material number 1.6945).
  • the shaft at opposite to the inflow arranged Abström a cold-tough material, preferably a material of 2-4% Ni steels, in particular a material 26NiCrMoV14-5 (material number 1.6957).
  • a cold-tough material preferably a material of 2-4% Ni steels, in particular a material 26NiCrMoV14-5 (material number 1.6957).
  • 26NiCrMoV11-5 material number 1.6948) and / or 22NiCrMo9-9 have.
  • the shaft is formed in several parts from an inflow part and an outflow part assigned to it on both sides.
  • the inflow part is connected with its oppositely arranged ends cohesively with the respective further outflow parts.
  • a welded connection can preferably be used.
  • a gas-shielded welding process in particular a TIG welding
  • TIG narrow gap welding it is also possible to carry out a TIG narrow gap welding.
  • UP Unterpulverversch spaung
  • combined welding processes can also be carried out, the "root position" being carried out, for example, in the TIG process and the "filling or covering layers" in the UP process.
  • the inflow part is arranged in the region of the steam inflow of the turbomachine, the outflow parts being arranged laterally in the longitudinal direction of the turbomachine, ie in the outflow region.
  • the inflow part consists of the material 22CrMoNiWV8-8, wherein the outflow parts can each consist of one of the following exemplary materials 26NiCrMoV14-5, 26NiCrMoV11-5 and / or 22CrNiM09-9.
  • the inflow part of the material 22CrMoNiWV8-8 can be conveniently produced as a disk body with a diameter of up to 3000mm, wherein for the disk body no ESU melting ( E lektro- S chlacke- U mschmelzung) is necessary even with the largest shaft diameters, as well Conventional melting process sufficiently homogeneous properties can be achieved.
  • the disk body becomes corresponding machined to fulfill its function in the flow cross-section.
  • the inflow can be easily produced as a disc body and the special ESU-melting (which is necessary for monobloc waves of the same diameter) can be omitted, also advantageously increases the number of suppliers for the procurement of the inflow due to the elimination of required manufacturing standards and tolerances or special requirements for suppliers.
  • the inflow part advantageously fulfills the necessary high long-term strength and toughness requirement in turbomachines, in particular in the inflow region.
  • Figure 1 shows a shaft 1 of a turbomachine in a half-section up to a central axis X.
  • the shaft 1 is mirror-inverted to the central axis X executed.
  • the shaft 1 is part of a double-flow low pressure area.
  • the turbomachine may be, for example, a steam turbine. The possibly upstream medium-pressure areas or high-pressure areas of the turbomachine are not shown.
  • the turbomachine has an inflow region, which is represented by the arrow 2.
  • a medium for example, steam flows into the low-pressure region of the turbomachine, wherein the medium flow, with respect to the approximately centrally arranged inflow region 2, is divided into two flow directions 3.
  • Each partial flow 3 flows through a blade grid, not shown.
  • the low-pressure region of the fluid-flow machine thus has an inflow region 2 and two flow regions or outflow regions 4 arranged laterally to the latter, seen in the longitudinal direction or axial direction.
  • the shaft 1 is formed in several parts from an inflow part 6 and two outflow parts 7, which are seen laterally in the longitudinal direction.
  • the inflow part 6 is materially connected to the respectively laterally arranged outflow parts 7.
  • the cohesive connection can be designed as a welded connection.
  • the TIG process may be provided, preferably as TIG narrow gap welding.
  • a submerged arc welding (UP) can be provided.
  • the respective weld bears the reference numeral 8.
  • the inflow part 6 is made as a disk body, which consists of the material 22CrNiMoWV8-8.
  • FIG. 2 shows a temperature diagram in the longitudinal direction of the shaft 1.
  • the shaft 1 in the inflow region 2 of the turbomachine can be operated over a temperature> 350 ° C.
  • the temperature decreases seen in the longitudinal direction in both outflow areas 4.
  • the temperature curve 9 achievable by means of the material 22CrNiMoWV8-8 used in accordance with the invention is shown in dashed lines, wherein below a conventional temperature curve 10 is shown, which does not exceed the amount of 350 ° C.
  • an improved shaft 1 which can be exposed to higher temperature loads (> 350 ° C.) in the inflow region on account of the material 22CrNiMoWV8-8 of the inflow part 6 used according to the invention.
  • the welds 8 are conveniently arranged in a temperature range ⁇ 350 ° C.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Arc Welding In General (AREA)
EP06010925A 2006-05-26 2006-05-26 Geschweisste ND-Turbinenwelle Withdrawn EP1860279A1 (de)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP06010925A EP1860279A1 (de) 2006-05-26 2006-05-26 Geschweisste ND-Turbinenwelle
EP07712292A EP2024605A1 (de) 2006-05-26 2007-02-23 Geschweisste nd-turbinenwelle
JP2009511422A JP5036811B2 (ja) 2006-05-26 2007-02-23 溶接された低圧タービン軸
US12/227,468 US8083492B2 (en) 2006-05-26 2007-02-23 Welded low-pressure turbine shaft
PCT/EP2007/051743 WO2007137884A1 (de) 2006-05-26 2007-02-23 Geschweisste nd-turbinenwelle
CN200780019467.9A CN101454541B (zh) 2006-05-26 2007-02-23 焊接的低压-涡轮机轴

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06010925A EP1860279A1 (de) 2006-05-26 2006-05-26 Geschweisste ND-Turbinenwelle

Publications (1)

Publication Number Publication Date
EP1860279A1 true EP1860279A1 (de) 2007-11-28

Family

ID=37075789

Family Applications (2)

Application Number Title Priority Date Filing Date
EP06010925A Withdrawn EP1860279A1 (de) 2006-05-26 2006-05-26 Geschweisste ND-Turbinenwelle
EP07712292A Ceased EP2024605A1 (de) 2006-05-26 2007-02-23 Geschweisste nd-turbinenwelle

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP07712292A Ceased EP2024605A1 (de) 2006-05-26 2007-02-23 Geschweisste nd-turbinenwelle

Country Status (5)

Country Link
US (1) US8083492B2 (ja)
EP (2) EP1860279A1 (ja)
JP (1) JP5036811B2 (ja)
CN (1) CN101454541B (ja)
WO (1) WO2007137884A1 (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100202891A1 (en) * 2008-08-11 2010-08-12 Shin Nishimoto Low-pressure turbine rotor
US8925894B2 (en) 2012-02-17 2015-01-06 Vetco Gray Inc. Ball valve enclosure and drive mechanism

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6288532B2 (ja) 2014-10-10 2018-03-07 三菱日立パワーシステムズ株式会社 軸体の製造方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1448063A (en) * 1973-01-26 1976-09-02 Alsthom Cgee Turbine rotor
DE2906371A1 (de) * 1979-02-19 1980-08-21 Kloeckner Werke Ag Turbinenlaeufer und verfahren zu seiner herstellung
US20020081197A1 (en) * 2000-12-27 2002-06-27 Crawmer Gerald Richard Fabricating turbine rotors composed of separate components
WO2004051056A1 (de) * 2002-12-05 2004-06-17 Siemens Aktiengesellschaft Turbinenwelle sowie herstellung einer turbinenwelle
WO2004101209A1 (de) * 2003-05-14 2004-11-25 Alstom Technology Ltd Verfahren zum verschweissen von bauteilen sowie ein nach einem solchen verfahren hergestellter rotor
EP1577494A1 (de) * 2004-03-17 2005-09-21 Siemens Aktiengesellschaft Geschweisste Turbinenwelle und Verfahren zur deren Herstellung
WO2006048401A1 (de) * 2004-11-02 2006-05-11 Alstom Technology Ltd Optimierte turbinenstufe einer turbinenanlage sowie auslegungsverfahren

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001050002A (ja) * 1999-08-04 2001-02-23 Toshiba Corp 低圧タービンロータおよびその製造方法ならびに蒸気タービン

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1448063A (en) * 1973-01-26 1976-09-02 Alsthom Cgee Turbine rotor
DE2906371A1 (de) * 1979-02-19 1980-08-21 Kloeckner Werke Ag Turbinenlaeufer und verfahren zu seiner herstellung
US20020081197A1 (en) * 2000-12-27 2002-06-27 Crawmer Gerald Richard Fabricating turbine rotors composed of separate components
WO2004051056A1 (de) * 2002-12-05 2004-06-17 Siemens Aktiengesellschaft Turbinenwelle sowie herstellung einer turbinenwelle
WO2004101209A1 (de) * 2003-05-14 2004-11-25 Alstom Technology Ltd Verfahren zum verschweissen von bauteilen sowie ein nach einem solchen verfahren hergestellter rotor
EP1577494A1 (de) * 2004-03-17 2005-09-21 Siemens Aktiengesellschaft Geschweisste Turbinenwelle und Verfahren zur deren Herstellung
WO2006048401A1 (de) * 2004-11-02 2006-05-11 Alstom Technology Ltd Optimierte turbinenstufe einer turbinenanlage sowie auslegungsverfahren

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100202891A1 (en) * 2008-08-11 2010-08-12 Shin Nishimoto Low-pressure turbine rotor
EP2312127A1 (en) * 2008-08-11 2011-04-20 Mitsubishi Heavy Industries, Ltd. Rotor for low-pressure turbine
EP2312127A4 (en) * 2008-08-11 2015-01-07 Mitsubishi Heavy Ind Ltd ROTOR FOR A LOW PRINTING TUBE
US8925894B2 (en) 2012-02-17 2015-01-06 Vetco Gray Inc. Ball valve enclosure and drive mechanism

Also Published As

Publication number Publication date
CN101454541A (zh) 2009-06-10
WO2007137884A1 (de) 2007-12-06
JP2009538397A (ja) 2009-11-05
JP5036811B2 (ja) 2012-09-26
US20090263249A1 (en) 2009-10-22
US8083492B2 (en) 2011-12-27
CN101454541B (zh) 2011-09-07
EP2024605A1 (de) 2009-02-18

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