EP2024605A1 - Arbre de turbine bp soudé - Google Patents

Arbre de turbine bp soudé

Info

Publication number
EP2024605A1
EP2024605A1 EP07712292A EP07712292A EP2024605A1 EP 2024605 A1 EP2024605 A1 EP 2024605A1 EP 07712292 A EP07712292 A EP 07712292A EP 07712292 A EP07712292 A EP 07712292A EP 2024605 A1 EP2024605 A1 EP 2024605A1
Authority
EP
European Patent Office
Prior art keywords
inflow
shaft
turbomachine
outflow
low
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.)
Ceased
Application number
EP07712292A
Other languages
German (de)
English (en)
Inventor
Torsten-Ulf 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 EP07712292A priority Critical patent/EP2024605A1/fr
Publication of EP2024605A1 publication Critical patent/EP2024605A1/fr
Ceased 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
    • F01D5/06—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 having a Nie ⁇ derdruck Kunststoff, with at least one shaft, wherein the low pressure region has an inflow region.
  • Such a turbomachine is for example as
  • Such flow machines have an inflow region adjoining flow regions or Abström Suitee and wherein the flow surface preparation ⁇ having a substrate formed of blades and vanes blade cascade.
  • double-flow turbomachines are formed, wherein a flow medium, for example steam, flows over the
  • Inflow region flows in the viewed in the axial direction or in the longitudinal direction respectively left and right thereof arranged flow areas.
  • the flow medium flows in the opposite direction with respect to the respective other flow region.
  • the invention is therefore based on the object, a Strö ⁇ tion machine of the type mentioned, in particular the at least one shaft in the low pressure range of Strömungsma ⁇ machine with simple means to improve 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 consists of the material 22CrMoNiWV8-8, wherein the outflow parts can each consist of one of the following exemplary materials 26NiCrMoV14-5, 26NiCrMoVll-5 and / or 22CrNiMO9-9.
  • 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 has a cold-tough material, preferably a material of 2-4% nickel, in particular a material 26NiCrMoV14-5 (material number 1.6957), on the outflow parts arranged opposite the inlet part.
  • a cold-tough material preferably a material of 2-4% nickel, in particular a material 26NiCrMoV14-5 (material number 1.6957)
  • 26NiCrMoV14-5 material number 1.6957
  • the respective outflow part but also, for example, a material 26NiCrMoVl 1-5 (material number 1.6948) and / or 22NiCrMo9-9.
  • 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 highest temperatures prevail on the shaft or on its inflow part.
  • the inflow part of the material 22CrMoNiWV8-8 can be conveniently produced as a disk body with a diameter up to 3000mm, for the disk body no ESU melting (E_lektro-S_chlacke remelting) is necessary even with the largest shaft diameters, as well as conventional melting methods sufficient homogeneous properties are achievable.
  • the disk body is removed working to fulfill its function in flow cross-section.
  • Fig. 2 is a temperature diagram.
  • Figure 1 1 shows a shaft of a turbomachine in a half cross-section up to a central axis X.
  • Dataver mount ⁇ Lich the shaft 1 being in mirror image to the central axis X is ⁇ leads.
  • Wave 1 is part of a double-flowed der Kunststoff Scheme.
  • the turbomachine may for example be 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.
  • the medium flows at ⁇ game as steam in the low pressure area of the turbomachine, wherein the medium flow, based on the roughly medium-tig arranged inflow region 2 in two directions of flow 3 splits.
  • Each partial flow 3 flows through a not shown ⁇ posed blade grid.
  • 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 portion 6 is integrally connected to the depending ⁇ wells laterally arranged outflow parts. 7
  • the cohesive connection can be designed as a sweat ⁇ connection.
  • the TIG process preferably as TIG narrow gap welding be provided.
  • a submerged arc welding can also be used
  • the inflow part 6 is made as a disk body, which consists of the material 22CrNiMoWV8-8.
  • the material 22CrNiMoWV8-8 is made as a disk body, which consists of the material 22CrNiMoWV8-8.
  • the outflow parts 7 are each one of the following work ⁇ materials produced: 26NiCrMoV14-5: This material comprises 0.22-0.32% by weight C;
  • 26NiCrMoVll-5 This material comprises 0.22-0.32 wt% C;
  • This material comprises 0.22-0.25 wt% C;
  • FIG. 2 shows a temperature diagram in the longitudinal direction of the shaft 1.
  • the shaft 1 of the turbomachine via a tempera ture ⁇ > 350 ° C are operated in the inflow region. 2
  • the temperature decreases seen in the longitudinal direction in both outflow areas 4.
  • attainable by means of the inventively used material 22CrNiMoWV8-8 temperature curve is shown in dashed lines 9, being shown below, a conventional temperature curve 10, which does not increase the amount of 35O 0 C over ⁇ .
  • an improved shaft 1 which can be suspended in the inflow due to the inventively used ver ⁇ material 22CrNiMoWV8-8 6 of the inflow higher temperature loads (> 350 ° C).
  • the welds 8 are conveniently arranged in a tempera ⁇ tur Scheme ⁇ 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)

Abstract

L'invention concerne une turbomachine qui comporte une zone basse pression, pourvue d'au moins un arbre (1), la zone basse pression comportant une zone d'admission (2), l'arbre (1) comportant au moins un matériau résistant à la chaleur sur sa partie admission disposée dans la zone d'admission (2), l'arbre (1) comportant un matériau 26NiCrMoV14-5 et/ou 2SNiCrMoVll-5 et/ou 22CrNiMo9-9 sur des parties d'écoulement disposées à l'opposé de la partie admission (6).
EP07712292A 2006-05-26 2007-02-23 Arbre de turbine bp soudé Ceased EP2024605A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07712292A EP2024605A1 (fr) 2006-05-26 2007-02-23 Arbre de turbine bp soudé

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP06010925A EP1860279A1 (fr) 2006-05-26 2006-05-26 Arbre soudé de turbine basse pression
PCT/EP2007/051743 WO2007137884A1 (fr) 2006-05-26 2007-02-23 Arbre de turbine bp soudé
EP07712292A EP2024605A1 (fr) 2006-05-26 2007-02-23 Arbre de turbine bp soudé

Publications (1)

Publication Number Publication Date
EP2024605A1 true EP2024605A1 (fr) 2009-02-18

Family

ID=37075789

Family Applications (2)

Application Number Title Priority Date Filing Date
EP06010925A Withdrawn EP1860279A1 (fr) 2006-05-26 2006-05-26 Arbre soudé de turbine basse pression
EP07712292A Ceased EP2024605A1 (fr) 2006-05-26 2007-02-23 Arbre de turbine bp soudé

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP06010925A Withdrawn EP1860279A1 (fr) 2006-05-26 2006-05-26 Arbre soudé de turbine basse pression

Country Status (5)

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

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4995317B2 (ja) * 2008-08-11 2012-08-08 三菱重工業株式会社 低圧タービン用ロータ
US8925894B2 (en) 2012-02-17 2015-01-06 Vetco Gray Inc. Ball valve enclosure and drive mechanism
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

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2215832A5 (fr) * 1973-01-26 1974-08-23 Alsthom
DE2906371A1 (de) * 1979-02-19 1980-08-21 Kloeckner Werke Ag Turbinenlaeufer und verfahren zu seiner herstellung
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
US6454531B1 (en) * 2000-12-27 2002-09-24 General Electric Company Fabricating turbine rotors composed of separate components
EP1567749B1 (fr) * 2002-12-05 2007-04-11 Siemens Aktiengesellschaft Arbre de turbine et realisation d'un arbre de turbine
WO2004101209A1 (fr) * 2003-05-14 2004-11-25 Alstom Technology Ltd Procede de soudage de composants et rotor fabrique au moyen de ce procede
EP1577494A1 (fr) * 2004-03-17 2005-09-21 Siemens Aktiengesellschaft Arbre soudé de turbine à vapeur et procédé de fabrication
CN101094971B (zh) * 2004-11-02 2011-03-09 阿尔斯托姆科技有限公司 涡轮机装置的优化的涡轮机级以及设计方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
MAX KRAUSE: "Staehle fuer Temperaturbeanspruchung", VDI Z, vol. 123, no. 11, 1 January 1981 (1981-01-01), DE, pages 38 - 41, XP055192410, ISSN: 0042-1766 *

Also Published As

Publication number Publication date
EP1860279A1 (fr) 2007-11-28
US8083492B2 (en) 2011-12-27
WO2007137884A1 (fr) 2007-12-06
CN101454541A (zh) 2009-06-10
JP2009538397A (ja) 2009-11-05
US20090263249A1 (en) 2009-10-22
CN101454541B (zh) 2011-09-07
JP5036811B2 (ja) 2012-09-26

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