EP1733123A1 - Geschweisste turbinenwelle und verfahren zur deren herstellung - Google Patents
Geschweisste turbinenwelle und verfahren zur deren herstellungInfo
- 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- Withdrawn
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
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05715934A EP1733123A1 (de) | 2004-03-17 | 2005-03-10 | Geschweisste turbinenwelle und verfahren zur deren herstellung |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04006394A EP1577494A1 (de) | 2004-03-17 | 2004-03-17 | Geschweisste Turbinenwelle und Verfahren zur deren Herstellung |
PCT/EP2005/002558 WO2005093218A1 (de) | 2004-03-17 | 2005-03-10 | Geschweisste turbinenwelle und verfahren zur deren herstellung |
EP05715934A EP1733123A1 (de) | 2004-03-17 | 2005-03-10 | Geschweisste turbinenwelle und verfahren zur deren herstellung |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1733123A1 true EP1733123A1 (de) | 2006-12-20 |
Family
ID=34833624
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04006394A Withdrawn EP1577494A1 (de) | 2004-03-17 | 2004-03-17 | Geschweisste Turbinenwelle und Verfahren zur deren Herstellung |
EP05715934A Withdrawn EP1733123A1 (de) | 2004-03-17 | 2005-03-10 | Geschweisste turbinenwelle und verfahren zur deren herstellung |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04006394A Withdrawn EP1577494A1 (de) | 2004-03-17 | 2004-03-17 | Geschweisste Turbinenwelle und Verfahren zur deren Herstellung |
Country Status (4)
Country | Link |
---|---|
US (1) | US7771166B2 (de) |
EP (2) | EP1577494A1 (de) |
CN (1) | CN100420825C (de) |
WO (1) | WO2005093218A1 (de) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE502005008646D1 (de) | 2005-12-20 | 2010-01-14 | Siemens Ag | Verfahren zur Herstellung einer stoffschlüssigen Verbindung zwischen zwei metallischen Wellenstücken einer Welle, insbesondere einer Dampfturbinenwelle |
EP1837483A1 (de) * | 2006-03-20 | 2007-09-26 | Siemens Aktiengesellschaft | Geschweisste Welle für Strömungsmaschinen |
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 (de) * | 2006-05-26 | 2007-11-28 | Siemens Aktiengesellschaft | Geschweisste ND-Turbinenwelle |
US20110100961A1 (en) * | 2009-11-05 | 2011-05-05 | Alstom Technology Ltd | Welding process for producing rotating turbomachinery |
JP5250118B2 (ja) | 2009-12-21 | 2013-07-31 | 三菱重工業株式会社 | 単流型タービンにおける冷却方法及び装置 |
EP2412473A1 (de) * | 2010-07-27 | 2012-02-01 | Siemens Aktiengesellschaft | Verfahren zur Schweißung von Halbschalen |
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 |
Citations (1)
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 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
US6129514A (en) * | 1996-02-16 | 2000-10-10 | Hitachi, Ltd. | Steam turbine power-generation plant and steam turbine |
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 |
US7065872B2 (en) * | 2003-06-18 | 2006-06-27 | General Electric Company | Method of processing a multiple alloy rotor |
US6971850B2 (en) * | 2003-06-18 | 2005-12-06 | General Electric Company | Multiple alloy rotor and method therefor |
US6962483B2 (en) * | 2003-06-18 | 2005-11-08 | General Electric Company | 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 |
-
2004
- 2004-03-17 EP EP04006394A patent/EP1577494A1/de not_active Withdrawn
-
2005
- 2005-03-10 WO PCT/EP2005/002558 patent/WO2005093218A1/de active Application Filing
- 2005-03-10 CN CNB2005800157577A patent/CN100420825C/zh not_active Expired - Fee Related
- 2005-03-10 US US10/593,043 patent/US7771166B2/en not_active Expired - Fee Related
- 2005-03-10 EP EP05715934A patent/EP1733123A1/de not_active Withdrawn
Patent Citations (1)
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 |
---|---|
CN1954133A (zh) | 2007-04-25 |
US7771166B2 (en) | 2010-08-10 |
EP1577494A1 (de) | 2005-09-21 |
CN100420825C (zh) | 2008-09-24 |
US20080159849A1 (en) | 2008-07-03 |
WO2005093218A1 (de) | 2005-10-06 |
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Owner name: SIEMENS AKTIENGESELLSCHAFT |
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