CN102656340B - For the multi-part type inner housing of steam turbine - Google Patents
For the multi-part type inner housing of steam turbine Download PDFInfo
- Publication number
- CN102656340B CN102656340B CN201080055906.3A CN201080055906A CN102656340B CN 102656340 B CN102656340 B CN 102656340B CN 201080055906 A CN201080055906 A CN 201080055906A CN 102656340 B CN102656340 B CN 102656340B
- Authority
- CN
- China
- Prior art keywords
- shell member
- mating face
- inner shell
- inner housing
- level
- 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.)
- Expired - Fee Related
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
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
- F01D25/26—Double casings; Measures against temperature strain in casings
- F01D25/265—Vertically split casings; Clamping arrangements therefor
-
- 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
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/08—Cooling; Heating; Heat-insulation
- F01D25/14—Casings modified therefor
-
- 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
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
-
- 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
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
- F01D25/243—Flange connections; Bolting arrangements
-
- 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
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
- F01D25/26—Double casings; Measures against temperature strain in casings
-
- 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
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/28—Supporting or mounting arrangements, e.g. for turbine casing
-
- 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
- F05D2220/30—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
-
- 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
- F05D2240/00—Components
- F05D2240/10—Stators
- F05D2240/14—Casings or housings protecting or supporting assemblies within
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The present invention relates to a kind of inner housing for fluid machinery (1), wherein along the circumferential direction observe, inner housing (1) is at least made up of three inner shell member.
Description
Technical field
The present invention relates to a kind of inner housing for steam turbine and a kind of method for the manufacture of the inner housing for fluid machinery.
Background technique
Fluid machinery is such as interpreted as steam turbine.Usually, steam turbine has the rotor be rotatably mounted and the housing arranged around rotor.Runner is configured with between rotor and inner housing.Housing in steam turbine must can meet several functions.First, the guide vane in runner is arranged on housing, and secondly, inner housing must withstand the pressure and temperature of flowing medium for whole loading condition and special runnability.In steam turbine, flowing medium is steam.In addition, housing must be configured to, and it is possible for making also referred to as the importing of drainage and derivation.Another function that housing must meet is following possibility, and namely shaft end can connect and pass through housing.
Be in operation when there is high stress, pressure and temperature, need suitably selection material and being chosen to by structure, make to realize the integrity of machinery and functional.For this reason it is required that especially use the material of high-quality in the region of inflow port and the first directing vane film trap.
Nickel-base alloy is applicable to being applied in higher than 650 DEG C, such as, at the initial steam temperature of 700 DEG C, because it withstands the load at high temperature occurred.Certainly, the application of this nickel-base alloy and new requirement link together.Therefore, the cost for nickel-base alloy is relatively high, and in addition, such as, is limited the workability of nickel-base alloy by restricted casting possibility.This causes, and must minimize the application of nickel-base material.In addition, nickel-base material is the heat conductor of difference.Thus, temperature gradient is constant on wall thickness, makes thermal stress relatively high.In addition should it is considered that, relative to traditional material, when using nickel material, the temperature difference between the entrance and exit of steam turbine may become large.
Nowadays, different concepts is followed to provide the steam turbine being suitable for high temperature and high pressure.Therefore, it is known that, according to the document " AdvancedDesignofMitsubishiLargeSteamTurbines (advanced design of Mitsubishi's large-size steam turbine) " of Y.Tanaka etc., Mitsubishi Heavy Industries Ltd, PowerGenEurpo (European electrical power exhibition), 2003, Dusseldorf,-8 days on the 6th May in 2003, the inner shell structure comprising multiple parts is joined in outer shell construction.It is also known that be made up of two parts according to DE102006027237A1 inner housing.The inner shell structure of multicompartment is also disclosed in DE3421067 and in DE10353451A1.
Fluid machinery is designed, such as steam turbine for high vapor (steam) temperature and vapor pressure.Partly, vapor (steam) temperature is higher than 650 DEG C, and vapor pressure is higher than 300bar.This steam parameter requires to use the material withstanding thermal stress and mechanical stress.It is known that use heavy alloyed chromium steel.In addition it is known that use nickel-base material.Steam turbine comprises the rotor that can install rotationally around spin axis and the inner housing that arranges around rotor and the frame arranged around inner housing substantially.Inner housing is formed usually in two style, and namely inner housing has the inner shell member of bottom and the inner shell member on top, between described two inner shell member, be wherein configured with the mating face of level.Nickel-base material for this steam turbine is relatively costly.In addition, manufacture is limited to low tonnage and castability.In addition, the inner shell member phase counterweight be made up of single-piece and large.
Summary of the invention
Propose the present invention with regard to this point, object of the present invention is, provides a kind of inner housing for fluid machinery, and described inner housing can be made to lightweight.This object is realized by the inner housing for steam turbine according to the present invention, wherein said inner housing is made up of at least three inner shell member, wherein said inner housing is configured to install round the rotor around spin axis orientation, and described inner shell member is circumferentially dividing about described spin axis, wherein said inner housing has the mating face of level, wherein said inner housing comprises the inner shell member on the top be made up of single-piece and under the mating face of described level, comprises two inner shell member on the mating face of described level, two described inner shell member under the mating face being wherein arranged on described level have the adapter that becomes a mandarin respectively.
The present invention is based on following viewpoint, that is, can cancel and be limited to two inner shell member and be at least configured with three inner shell member.Thus, reduce quality and the size of each inner shell member to be manufactured, this causes the better manipulation of inner shell member.In addition, inner shell member can be made to lightweight more.
Inner housing can be configured for installing round the rotor around spin axis orientation, and inner shell member is in the circumferentially division about spin axis.Division is in the axial direction feasible equally.Certainly, being more favourable about circumferentially dividing of spin axis, because can distribution machinery power better.In addition, the outside dimension of the inner shell member of separating in a circumferential direction is less than the inner shell member of separating in the axial direction.At this, inner shell member is connected to each other by suitable mechanism in a circumferential direction.
Inner housing has the mating face of level.This causes, and during installation inner shell member, stably can settle corresponding lower inner shell body component, and the inner shell member on one or more corresponding top can be set in the inner shell member of one or more bottom.
According to the present invention, inner housing comprises the inner shell member on the top be made up of single-piece and under the mating face of level, comprises the inner shell member of two bottoms on the horizontal joint.Usually, the inner shell member of bottom is greater than the inner shell member on top, and therefore the inner shell member of bottom being divided into two parts is favourable solution.
Favourable improved form illustrates hereinafter.
In favourable improved form, the inner shell member of two bottoms under the mating face being arranged on level is formed by vertical mating face.This means, the inner shell member of two bottoms under the mating face being arranged on level can be formed substantially Mirror Symmetry.This causes, and for the reason of symmetry, the mechanical load of inner shell member distributes equably.Vertical mating face relative to level mating face half-twist arrange.
In favourable improved form, the first lower inner shell body component and the basic equal and opposite in direction of the second lower inner shell body component and weight are formed in the same manner.In addition, the first lower inner shell body component and the second lower inner shell body component have the adapter that becomes a mandarin respectively.
In the improved form that another is favourable, inner housing comprises four inner shell member, and wherein two inner shell member are formed under the mating face of level, and two inner shell member are formed on the mating face of level.Except inner housing being divided into three parts, it is favourable for being divided into four parts.For the reason of symmetry, four basic approximate size of parts are equal.This causes, during fabrication can be cost-saving, because compared with manufacturing the component of different size, the component manufacturing approximate size equal faces lower challenge.In addition, the low piece weight of inner shell member reduces the substandard products risk of each inner shell member.Reduce risk economically thus.In general, which results in the throughput of expansion, namely can expand supplier's system.
In the improved form that another is favourable, the inner shell member on the mating face being arranged on level has vertical mating face.Be similar to the form of implementation with three housing parts, wherein the inner shell member of two bottoms has vertical mating face, and the inner shell member on two tops on the mating face being formed in level has vertical mating face.In other words, the vertical mating face formed on the horizontal joint is arranged relative to the basic half-twist in the mating face of level.Thus, the component of inner shell member is that approximate size is equal, and this causes cost-saving further.
In the extend type that another is favourable, vertical mating face is continuous print.This means, the vertical mating face of the vertical mating face of the inner shell member on two tops and the inner shell member of two bottoms is positioned on straight line.For the reason of symmetry, mechanical force is assigned in inner shell member thus better.In addition, homogeneous is more out of shape.
In the extend type that another is favourable, inner shell member is made up of nickel-base material.Nickel-base material is suitable for the mechanical stress occurred in steam turbine operation and thermal stress.
Object for method is realized by the method for the manufacture of the inner housing for fluid machinery, and wherein inner housing is made up of at least three inner housing cast construction.Advantage obtains according to the advantage illustrated device.
Accompanying drawing explanation
Below, the accompanying drawing by reference to signal illustrates embodiments of the invention, about whole details important for the present invention clearly with reference to described accompanying drawing.Shown in the drawings:
Fig. 1 illustrates the side view of the inner housing be coupled each other;
Fig. 2 illustrates the sectional drawing cut open along the straight line A in Fig. 1;
Fig. 3 illustrates the stereogram of inner housing;
Fig. 4 illustrates the sectional drawing cut open along straight line A of the inner housing comprising four inner shell member;
Fig. 5 illustrates the schematic diagram of inner housing shown in Figure 4 with exploded view.
Embodiment
Fig. 1 illustrates the side view of the inner housing 1 of fluid machinery.This fluid machinery can be such as steam turbine or gas turbine.Form of implementation below relates to steam turbine.Inner housing 1 comprises the mating face 2 of level and forms around spin axis 3 almost symmetry.The rotor be not shown specifically is installed in rotation within inner housing 1 around spin axis 3.
On the horizontal joint 3, be configured with the inner shell member 5,10,11 on top, and under the horizontal joint 2, be configured with the inner shell member 6,7 of bottom.The inner shell member 6,7 of the bottom under the horizontal joint 2 has the adapter 4 that becomes a mandarin substantially.Fig. 1 had both represented the inner housing be made up of three inner shell member, and the inner housing be made up of four inner shell member is also shown.
Fig. 2 illustrates the section cut open along straight line A of the inner housing 1 in Fig. 1.Inner housing 1 comprises the inner shell member 5 on top on the horizontal joint 2, and under the horizontal joint 2, have the inner shell member 6 of the first bottom and the inner shell member 7 of the second bottom.Vertical mating face 8 is configured with between the inner shell member 6 and the inner shell member 7 of the second bottom of the first bottom.Described vertical mating face 8 is formed substantially in 90 °ly relative to the mating face 2 of level.The inner shell member 6 of the first bottom can be connected via bolt with the inner shell member 7 of the second bottom with being fixed to one another.In this case importantly, after First Contact Connections, the inner shell member 6 and 7 of bottom is no longer opened, because this can cause mobile.
The inner shell member 6 of the first bottom and the basic equal and opposite in direction ground of the inner shell member 7 of the second bottom are formed.The inner shell member 6 of the first bottom and the inner shell member 7 of the second bottom have the adapter 4 that becomes a mandarin, for transport flowing medium.
Fig. 3 illustrates the stereogram of the inner housing in Fig. 2 with exploded view.Inner housing 1 is made up of at least three inner shell member 5,6 and 7.Inner housing 1 is configured for installing the rotor around spin axis 3 orientation, and inner shell member 5,6 and 7 is dividing about on the circumferencial direction 9 of spin axis 3.Inner housing 1 is made up of nickel-base material.
Fig. 4 illustrates the alternative form of implementation of inner housing 1.Be with the difference of the inner housing 1 according to Fig. 2, the inner shell member 5 on present top is also divided into the inner shell member 10 on the first top and the inner shell member 11 on the second top.In this case, the inner shell member 10 on the first top and the inner shell member 11 on the second top are separated from each other by vertical mating face 12 equally.Vertical mating face 12 and vertical mating face 8 are configured to continuous print, vertical mating face.This means, vertical mating face 8 and vertical mating face 12 are arranged along straight line 13.Inner housing 1 is configured to, and the mating face 2 of level is essentially horizontally arranged in the routine of the steam turbine comprising this inner housing 1 uses.In this case, vertical mating face 8,12 and the mating face 2 of level are arranged on half-twist ground relative to each other.
The housing parts 10 on the first top can be connected by bolt with the housing parts 11 on the second top with being fixed to one another.Note also at this, vertical mating face 12 is no longer opened after screwing, not change position and orientation thus.
Fig. 5 illustrates the stereogram of the inner housing 1 in Fig. 4, and described inner housing comprises four inner shell member 6,7,10,11 and divides on circumferencial direction 9.The present invention comprises three or four inner shell member 6,7,10,11 divided on circumferencial direction 9 in an embodiment.In the form of implementation of alternative, inner housing can be formed more than four inner shell member.
Claims (11)
1. for the inner housing (1) of steam turbine, wherein said inner housing (1) is made up of at least three inner shell member (5,6,7,10,11), wherein said inner housing (1) is configured to install round the rotor directed around spin axis (3), and described inner shell member (5,6,7,10,11) above divides at the circumferencial direction (9) about described spin axis (3)
Wherein said inner housing (1) has the mating face (2) of level, wherein said inner housing (1) comprises the inner shell member (5) on the top be made up of single-piece and comprise two inner shell member (6,7) under the mating face (2) of described level on the mating face (2) of described level
Two described inner shell member (6,7) under the mating face (2) being wherein arranged on described level have the adapter (4) that becomes a mandarin respectively.
2. inner housing according to claim 1 (1), two the described inner shell member (6,7) under the mating face (2) being wherein arranged on described level are configured to by the first vertical mating face (8).
3. inner housing according to claim 2 (1), the basic equal and opposite in direction ground of two the described inner shell member (6,7) under the mating face (2) being wherein arranged on described level is formed.
4. inner housing according to any one of claim 1 to 3 (1), wherein said inner housing (1) has four inner shell member (5,6,7,10,11), wherein two inner shell member (6,7) be formed in described level mating face under and two inner shell member (10,11) be formed on the mating face (2) of described level.
5. inner housing according to claim 4 (1), the described inner shell member (10,11) on the mating face (2) being wherein arranged on described level has the second vertical mating face (12).
6. inner housing according to claim 4 (1), the described inner shell member (6,7) under the mating face (2) being wherein arranged on described level has the first vertical mating face (8).
7. inner housing according to claim 5 (1), the described inner shell member (6,7) under the mating face (2) being wherein arranged on described level has the first vertical mating face (8).
8. inner housing according to claim 5 (1), wherein said first vertical mating face (8) and described second vertical mating face (12) are continuous print, and the described inner shell member (6,7) under the mating face (2) being wherein arranged on described level has the first vertical mating face (8).
9. inner housing according to any one of claim 1 to 3 (1), wherein said inner shell member (5,6,7,10,11) is made up of nickel-base material.
10., for the manufacture of the method for the inner housing (1) of steam turbine, wherein said inner housing (1) is made up of the inner housing cast construction that at least three are connected to each other in a circumferential direction,
Wherein said inner housing (1) has the mating face (2) of level,
Wherein said inner housing (1) comprises the inner shell member (5) on the top be made up of single-piece and comprise two inner shell member (6,7) under the mating face (2) of described level on the mating face (2) of described level
Wherein respectively the adapter (4) that becomes a mandarin is manufactured to two the described inner shell member (6,7) under the mating face (2) being arranged on described level.
11. methods according to claim 10, wherein said inner shell member (5,6,7,10,11) is made up of nickel-base material.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP09015211.7 | 2009-12-08 | ||
| EP09015211A EP2333252A1 (en) | 2009-12-08 | 2009-12-08 | Multi-component internal housing for a steam turbine |
| PCT/EP2010/069015 WO2011069986A1 (en) | 2009-12-08 | 2010-12-07 | Multiple-part inner housing for a steam turbine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102656340A CN102656340A (en) | 2012-09-05 |
| CN102656340B true CN102656340B (en) | 2016-01-20 |
Family
ID=42173216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201080055906.3A Expired - Fee Related CN102656340B (en) | 2009-12-08 | 2010-12-07 | For the multi-part type inner housing of steam turbine |
Country Status (3)
| Country | Link |
|---|---|
| EP (2) | EP2333252A1 (en) |
| CN (1) | CN102656340B (en) |
| WO (1) | WO2011069986A1 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2905434A (en) * | 1954-07-08 | 1959-09-22 | Westinghouse Electric Corp | Turbine apparatus |
| US5060842A (en) * | 1990-04-09 | 1991-10-29 | Westinghouse Electric Corp. | Method for refurbishing nozzle block vanes of a steam turbine |
| EP1744017A1 (en) * | 2005-07-14 | 2007-01-17 | Siemens Aktiengesellschaft | Combined steam turbine and method for operating a combined steam turbine |
| CN100406684C (en) * | 2001-11-20 | 2008-07-30 | 阿尔斯通技术有限公司 | Gas turbo group |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5227282B2 (en) * | 1970-11-05 | 1977-07-19 | ||
| JPH0621521B2 (en) | 1983-06-10 | 1994-03-23 | 株式会社日立製作所 | Main structure of steam turbine main steam inlet |
| JP4238337B2 (en) * | 2001-01-10 | 2009-03-18 | 富士電機システムズ株式会社 | Steam turbine |
| SE525879C2 (en) * | 2003-03-21 | 2005-05-17 | Volvo Aero Corp | Process for manufacturing a stator component |
| US6964554B2 (en) * | 2003-03-31 | 2005-11-15 | Siemens Westinghouse Power Corporation | Drop-in nozzle block for steam turbine |
| DE10353451A1 (en) | 2003-11-15 | 2005-06-16 | Alstom Technology Ltd | Steam turbine and method for producing such a steam turbine |
| DE102006027237A1 (en) | 2005-06-14 | 2006-12-28 | Alstom Technology Ltd. | Steam turbine for a power plant has guide blade rows that are arranged on a single blade ring which is in turn arranged in the inner casing |
| JP5180652B2 (en) * | 2008-03-31 | 2013-04-10 | 三菱重工業株式会社 | Steam turbine casing structure |
-
2009
- 2009-12-08 EP EP09015211A patent/EP2333252A1/en not_active Withdrawn
-
2010
- 2010-12-07 WO PCT/EP2010/069015 patent/WO2011069986A1/en active Application Filing
- 2010-12-07 CN CN201080055906.3A patent/CN102656340B/en not_active Expired - Fee Related
- 2010-12-07 EP EP10790397A patent/EP2510196A1/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2905434A (en) * | 1954-07-08 | 1959-09-22 | Westinghouse Electric Corp | Turbine apparatus |
| US5060842A (en) * | 1990-04-09 | 1991-10-29 | Westinghouse Electric Corp. | Method for refurbishing nozzle block vanes of a steam turbine |
| CN100406684C (en) * | 2001-11-20 | 2008-07-30 | 阿尔斯通技术有限公司 | Gas turbo group |
| EP1744017A1 (en) * | 2005-07-14 | 2007-01-17 | Siemens Aktiengesellschaft | Combined steam turbine and method for operating a combined steam turbine |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2011069986A1 (en) | 2011-06-16 |
| EP2333252A1 (en) | 2011-06-15 |
| CN102656340A (en) | 2012-09-05 |
| EP2510196A1 (en) | 2012-10-17 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160120 Termination date: 20161207 |
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| CF01 | Termination of patent right due to non-payment of annual fee |