EP2025873A1 - Steam infeed for a steam turbine - Google Patents
Steam infeed for a steam turbine Download PDFInfo
- Publication number
- EP2025873A1 EP2025873A1 EP07015628A EP07015628A EP2025873A1 EP 2025873 A1 EP2025873 A1 EP 2025873A1 EP 07015628 A EP07015628 A EP 07015628A EP 07015628 A EP07015628 A EP 07015628A EP 2025873 A1 EP2025873 A1 EP 2025873A1
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- EP
- European Patent Office
- Prior art keywords
- pipe
- steam
- inner pipe
- steam supply
- outer pipe
- 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.)
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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
- 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
Definitions
- the invention relates to a steam feed for a turbomachine comprising an inner casing and an outer casing, in particular a steam turbine, comprising: a first inner pipe for guiding flow medium, wherein the inner pipe is designed for application to an inner casing inlet opening of the inner casing, an outer pipe arranged around the inner pipe, wherein the steam supply is designed for application to an outer housing inflow opening of the turbomachine.
- Turbomachines such as steam turbines, are operated with a flow medium.
- water vapor is used as the flow medium, which may have a temperature of over 600 ° C at a pressure of about 300 bar.
- Such high temperatures and pressures make increased demands on the materials of the steam turbine.
- the area of the steam inflow is subjected to high thermal and mechanical loads.
- a steam turbine as an embodiment of a turbomachine usually has an inner housing, an outer housing arranged around the inner housing and a rotor rotatably mounted within the inner housing for the use of highly heated live steam flowing into the steam turbine.
- the live steam flows through so-called inflow through the outer housing and the inner housing into the flow channel. The area around these inflow is therefore subjected to high thermal loads.
- suitable steam supply lines the hot steam is thermally decoupled from the outer casing as possible.
- the object of the invention is to provide a steam supply which is suitable for high temperatures.
- the invention is based inter alia on the aspect that it is advantageous if a steam supply has two pipes which are arranged coaxially one above the other, wherein the live steam flows through the inner pipe and a cooling medium flows around the inner pipe.
- the invention has, inter alia, the advantage that the steam supply line is designed such that an outer pipe is arranged around an inner inner pipe. Between the outer pipe and the inner pipe, a gap is formed, in which a cooling medium can be flowed. This cooling medium causes cooling of the outer pipe.
- the outer pipe can now be coupled directly to a steam turbine, the steam turbine is less thermally stressed. Thus, live steam at high temperature can be used.
- the cooling medium is flowed into the space between the outer pipe and the inner pipe via a cooling medium inflow opening.
- the cooling medium may in this case be an external cooling medium or originate from the steam turbine.
- live steam at a temperature of about 620 ° C and a pressure of about 350 bar is flowed into the steam turbine and expanded in the flow channel, wherein the thermal energy of the steam is converted into mechanical energy and causes a rotation of the rotor.
- the expanded steam may have a temperature of 500 ° C and be used as a cooling medium.
- the expanded steam is usually brought in a reheater to a pressure of about 350 bar and as Reheater steam called.
- This reheated steam can also be used as a cooling medium.
- the cooling medium located around the inner pipe acts in the radial direction and thus exerts a mechanical stress on the inner pipe and on the outer pipe.
- the inner pipe and the outer pipe are thereby mechanically relieved.
- the outer pipe is connected to one another at a first location around the inner pipe, which is to be understood as a mechanically fixed connection.
- This connection can be achieved for example by connecting means such as screws or the like.
- Another way to connect the outer pipe at a first location to the inner pipe would be if the outer pipe and the inner pipe are formed centrein Culturedig.
- the outer pipe is connected to one another at a second location with the inner pipe.
- an inflow opening is arranged between the first and second locations. This provides a simple way to fill the cooling medium in the space between the outer pipe and the inner pipe.
- FIG. 1 a cross-sectional view of a steam turbine 1 is shown.
- the steam turbine 1 comprises an outer housing 2 and an inner housing 3.
- the inner housing 3 is arranged inside the outer housing 2.
- the inner housing 3 and the outer housing 2 is formed substantially symmetrically about a rotation axis 4.
- a shaft 5 is rotatably supported about the axis of rotation 4.
- a flow channel 6 is formed between the shaft 5 and the inner housing 3.
- the flow channel 6 is characterized by blades 7 arranged on the shaft 5 and vanes 8 arranged in the inner casing 3. For the sake of clarity, only one vane and one blade with the reference symbols 8 and 7 are shown in FIG FIG. 1 characterized.
- live steam flows via an inflow channel 9 into the steam turbine 1.
- the live steam subsequently flows into the flow channel 6 past the guide vanes or rotor blades 8, 7, thereby releasing and cooling.
- the thermal energy of the steam is converted into rotational energy of the shaft 5.
- the expanded steam subsequently flows out of the steam turbine 1 via an exhaust nozzle 10.
- the live steam has temperatures of over 600 ° C and a pressure of over 300 bar.
- the live steam is passed through a live steam supply 11 in the steam turbine 1.
- the FIG. 2 is a cross-sectional view, this cross-sectional view is shown in the axial direction.
- the Steam supply 11 comprises a first inner pipe 12 for guiding a flow medium, such as the live steam.
- the inner pipe 12 is designed to be applied to an inner housing inflow opening 13 of the inner housing 3.
- the steam feed 11 has an outer pipe 14 arranged around the inner pipe 12.
- the steam guide 11 is designed for application to an outer housing inflow opening 15.
- the cooling medium primarily cools the outer pipe 14.
- the cooling medium flows via a cooling medium inflow opening 17 into the space 16.
- the inner pipe 12 and the outer pipe 14 are connected to one another at a first location 18, ie, the cooling medium in the space 16 is not in the room 19 can flow between the inner housing 3 and the outer housing 2.
- the steam supply 11 is sealingly attached to one end 20 via seals 21 to the inner housing 3.
- the cooling medium inflow port 17 is disposed between the first location 18 and a second location 22.
- the steam feed 11 can be constructed from essentially two components, the steam feed 11 being formed from a first component 23 and a second component 24.
- the first component 23 can be attached to the outer housing 2 via a screw connection 25.
- the second component 24 can also be connected to the first component 23 via screw connections or similar fastening means.
- the fasteners are in the FIG. 2 not shown in detail. As an example of a fastener may serve a screw.
- the first component 23 comprises a first inner pipe 26. Furthermore, the first component 23 has a first outer pipe 27.
- the second component 24 has a second inner pipe 28 and a second outer pipe 29. Between the first inner pipe 26 and the second inner pipe 28, an I-ring seal 30 can be arranged. Such an I-ring seal 30 may also be between the first outer pipe 27 and the second outer pipe 29 are arranged.
- the inner pipe 12 and the outer pipe 4 are formed centrein Glag.
- the same material that is used for the inner housing 3 can be used.
- FIG. 3 an alternative embodiment of the steam feed 11 is shown.
- the steam supply 11 according to FIG. 3 is arranged such that the outer pipe 14 attached to the outer housing 2 by means of fastening means, which are not shown in detail.
- the steam supply 11 to an inner tube 12 which is disposed within the outer tube 14.
- the outer tube 14 is attached to the outer housing 2 at the first attachment point 32.
- the inner tube 12 is connected to a second attachment point 31 on an additional tube 33.
- the additional tube 33 may consist of the same material as the outer housing 2.
- the additional tube 33 is connected to the outer housing 2 at the first attachment point 32.
- a further external pipe 34 is connected to the additional pipe 33.
- the coolant may in the embodiment of the steam supply 11 according to FIG. 3 take place either in the additional tube 33 or by a cooling medium inflow opening in the outer tube 14, wherein both feed openings in the FIG. 3 are not shown in detail.
- the outer pipe 14 is designed as a so-called thermal sleeve. That is, the outer pipe 14 assumes an axial temperature gradient.
- An increase in the flow rate of cooling medium in the space 16 is obtained by arranging a plurality of cooling medium inflow openings 17 in the outer pipe 14.
- the outer pipe 14 is perforated, so to speak.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
Description
Die Erfindung betrifft eine Dampfzuführung für eine ein Innengehäuse und ein Außengehäuse umfassende Strömungsmaschine, insbesondere Dampfturbine, umfassend: eine erste Innenrohrleitung zum Führen von Strömungsmedium, wobei die Innenrohrleitung zum Anlegen an eine Innengehäuse-Einströmöffnung des Innengehäuses ausgebildet ist, eine um die Innenrohrleitung angeordnete Außenrohrleitung, wobei die Dampfzuführung zum Anlegen an eine Außengehäuse-Einströmöffnung der Strömungsmaschine ausgebildet ist.The invention relates to a steam feed for a turbomachine comprising an inner casing and an outer casing, in particular a steam turbine, comprising: a first inner pipe for guiding flow medium, wherein the inner pipe is designed for application to an inner casing inlet opening of the inner casing, an outer pipe arranged around the inner pipe, wherein the steam supply is designed for application to an outer housing inflow opening of the turbomachine.
Strömungsmaschinen, wie zum Beispiel Dampfturbinen, werden mit einem Strömungsmedium betrieben. In Dampfturbinen wird Wasserdampf als Strömungsmedium verwendet, der eine Temperatur von über 600°C bei einem Druck von über 300 bar aufweisen kann. Solch hohe Temperaturen und Drücke stellen erhöhte Anforderungen an die Materialen der Dampfturbine. Insbesondere wird der Bereich der Dampfeinströmung thermisch und mechanisch hoch belastet.Turbomachines, such as steam turbines, are operated with a flow medium. In steam turbines water vapor is used as the flow medium, which may have a temperature of over 600 ° C at a pressure of about 300 bar. Such high temperatures and pressures make increased demands on the materials of the steam turbine. In particular, the area of the steam inflow is subjected to high thermal and mechanical loads.
Eine Dampfturbine als Ausführungsform einer Strömungsmaschine weist für den Einsatz von in die Dampfturbine einströmendem stark erhitzten Frischdampf üblicherweise ein Innengehäuse, ein um das Innengehäuse angeordnetes Außengehäuse und einen innerhalb des Innengehäuses drehbar gelagerten Rotor auf. Der Frischdampf strömt über so genannte Einströmstutzen durch das Außengehäuse und das Innengehäuse in den Strömungskanal hinein. Der Bereich um diese Einströmstutzen wird daher thermisch hoch belastet. Durch geeignete Dampfzuführungsleitungen wird der heiße Wasserdampf möglichst vom Außengehäuse thermisch entkoppelt.A steam turbine as an embodiment of a turbomachine usually has an inner housing, an outer housing arranged around the inner housing and a rotor rotatably mounted within the inner housing for the use of highly heated live steam flowing into the steam turbine. The live steam flows through so-called inflow through the outer housing and the inner housing into the flow channel. The area around these inflow is therefore subjected to high thermal loads. By suitable steam supply lines, the hot steam is thermally decoupled from the outer casing as possible.
Aufgabe der Erfindung ist es, eine Dampfzuführung anzugeben, die für hohe Temperaturen geeignet ist.The object of the invention is to provide a steam supply which is suitable for high temperatures.
Gelöst wird diese Aufgabe durch die Merkmale des Anspruchs 1. Weitere vorteilhafte Weiterbildungen sind in den Unteransprüchen angegeben.This object is achieved by the features of claim 1. Further advantageous developments are specified in the dependent claims.
Die Erfindung geht unter anderem von dem Aspekt aus, dass es von Vorteil ist, wenn eine Dampfzuführung zwei Rohrleitungen aufweist, die koaxial übereinander angeordnet sind, wobei durch die innere Rohrleitung der Frischdampf strömt und um die innere Rohrleitung ein Kühlmedium strömt.The invention is based inter alia on the aspect that it is advantageous if a steam supply has two pipes which are arranged coaxially one above the other, wherein the live steam flows through the inner pipe and a cooling medium flows around the inner pipe.
Die Erfindung zeigt unter anderem den Vorteil, dass die Dampfzuführungsleitung derart ausgebildet ist, dass um eine innere Innenrohrleitung eine Außenrohrleitung angeordnet ist. Zwischen der Außenrohrleitung und der Innenrohrleitung bildet sich ein Spalt aus, in dem ein Kühlmedium strömbar ist. Dieses Kühlmedium bewirkt eine Kühlung der Außenrohrleitung. Die Außenrohrleitung kann nun direkt an eine Dampfturbine angekoppelt werden, wobei die Dampfturbine geringer thermisch belastet wird. Somit kann Frischdampf mit hoher Temperatur verwendet werden.The invention has, inter alia, the advantage that the steam supply line is designed such that an outer pipe is arranged around an inner inner pipe. Between the outer pipe and the inner pipe, a gap is formed, in which a cooling medium can be flowed. This cooling medium causes cooling of the outer pipe. The outer pipe can now be coupled directly to a steam turbine, the steam turbine is less thermally stressed. Thus, live steam at high temperature can be used.
Das Kühlmedium wird über eine Kühlmedium-Zuströmungsöffnung in den Raum zwischen der Außenrohrleitung und der Innenrohrleitung eingeströmt. Das Kühlmedium kann hierbei ein externes Kühlmedium sein oder aus der Dampfturbine stammen. Beispielsweise kann als Kühlmedium, der nach dem Strömungskanal ausströmende Dampf verwendet werden. In bekannten Dampfturbinen wird Frischdampf mit einer Temperatur von ca. 620°C und einem Druck von ca. 350 bar in die Dampfturbine eingeströmt und im Strömungskanal entspannt, wobei die thermische Energie des Dampfes in mechanische Energie umgewandelt wird und eine Rotation des Rotors hervorruft. Nach dem Strömungskanal kann der entspannte Dampf eine Temperatur von 500°C aufweisen und als Kühlmedium verwendet werden.The cooling medium is flowed into the space between the outer pipe and the inner pipe via a cooling medium inflow opening. The cooling medium may in this case be an external cooling medium or originate from the steam turbine. For example, can be used as the cooling medium, the effluent after the flow channel steam. In known steam turbines live steam at a temperature of about 620 ° C and a pressure of about 350 bar is flowed into the steam turbine and expanded in the flow channel, wherein the thermal energy of the steam is converted into mechanical energy and causes a rotation of the rotor. After the flow channel, the expanded steam may have a temperature of 500 ° C and be used as a cooling medium.
Der entspannte Dampf wird üblicherweise in einem Zwischenüberhitzer auf einen Druck von ca. 350 bar gebracht und als Zwischenüberhitzerdampf bezeichnet. Dieser zwischenüberhitzte Dampf kann ebenfalls als Kühlmedium verwendet werden.The expanded steam is usually brought in a reheater to a pressure of about 350 bar and as Reheater steam called. This reheated steam can also be used as a cooling medium.
Das um die Innenrohrleitung befindliche Kühlmedium wirkt in radialer Richtung und übt somit eine mechanische Spannung auf die Innenrohrleitung und auf die Außenrohrleitung auf. Die Innenrohrleitung und die Außenrohrleitung werden dadurch mechanisch entlastet.The cooling medium located around the inner pipe acts in the radial direction and thus exerts a mechanical stress on the inner pipe and on the outer pipe. The inner pipe and the outer pipe are thereby mechanically relieved.
In einer vorteilhaften Weiterbildung ist die Außenrohrleitung an einer ersten Stelle um die Innenrohrleitung miteinander verbunden, wobei darunter eine mechanisch festsitzende Verbindung zu verstehen ist. Diese Verbindung kann beispielsweise durch Verbindungsmittel wie Schrauben oder ähnliches erreicht werden. Eine weitere Möglichkeit, die Außenrohrleitung an einer ersten Stelle an die Innenrohrleitung zu verbinden wäre es, wenn die Außenrohrleitung und die Innenrohrleitung materialeinstückig ausgebildet sind. Durch diese Anordnung an der ersten Stelle wird ein Ausströmen des Kühlmediums aus dem Raum zwischen der Außenrohrleitung und der Innenrohrleitung verhindert.In an advantageous development, the outer pipe is connected to one another at a first location around the inner pipe, which is to be understood as a mechanically fixed connection. This connection can be achieved for example by connecting means such as screws or the like. Another way to connect the outer pipe at a first location to the inner pipe would be if the outer pipe and the inner pipe are formed materialeinstückig. By this arrangement at the first location, a leakage of the cooling medium from the space between the outer pipe and the inner pipe is prevented.
In einer weiteren vorteilhaften Weiterbildung ist die Außenrohrleitung an einer zweiten Stelle mit der Innenrohrleitung miteinander verbunden. Durch diese Maßnahme wird ein Ausströmen des Kühlmediums aus dem Raum zwischen der Außenrohrleitung und der Innenrohrleitung verhindert.In a further advantageous development, the outer pipe is connected to one another at a second location with the inner pipe. By this measure, leakage of the cooling medium from the space between the outer pipe and the inner pipe is prevented.
Vorteilhafter Weise ist zwischen der ersten und zweiten Stelle eine Zuströmöffnung angeordnet. Dadurch ist eine einfache Möglichkeit gegeben, um das Kühlmedium in dem Raum zwischen der Außenrohrleitung und der Innenrohrleitung zu füllen.Advantageously, an inflow opening is arranged between the first and second locations. This provides a simple way to fill the cooling medium in the space between the outer pipe and the inner pipe.
Weitere Ausbildungen und Vorteile der Erfindung ergeben sich aus dem nachfolgenden Beschreibungsteil, in welchem ein Ausführungsbeispiel der Erfindung anhand einer Zeichnung näher erläutert ist.Further embodiments and advantages of the invention will become apparent from the following description part, in which an embodiment of the invention with reference to a drawing is explained in more detail.
Darin zeigen:
- Figur 1
- eine Querschnittsansicht einer Dampfturbine,
Figur 2- eine Teil-Querschnittsansicht einer Dampftur- bine in axialer Richtung, und
- Figur 3
- eine alternative Ausführungsform einer Dampfzuführung in Querschnittsansicht.
- FIG. 1
- a cross-sectional view of a steam turbine,
- FIG. 2
- a partial cross-sectional view of a steam turbine in the axial direction, and
- FIG. 3
- an alternative embodiment of a steam supply in cross-sectional view.
In der
Im Betrieb strömt Frischdampf über einen Einströmkanal 9 in die Dampfturbine 1. Der Frischdampf strömt anschließend in den Strömungskanal 6 an den Leit- bzw. Laufschaufeln 8, 7 vorbei, entspannt und kühlt sich dabei ab. Die thermische Energie des Dampfes wird hierbei in Rotationsenergie der Welle 5 umgewandelt. Der entspannte Dampf strömt anschließend über einen Abgasstutzen 10 aus der Dampfturbine 1 heraus.In operation, live steam flows via an inflow channel 9 into the steam turbine 1. The live steam subsequently flows into the
In modernen Dampfturbinen weist der Frischdampf Temperaturen von über 600°C und einen Druck von über 300 bar auf. Wie in der
Das erste Bauteil 23 umfasst eine erste Innenrohrleitung 26 auf. Des Weiteren weist das erste Bauteil 23 eine erste Außenrohrleitung 27 auf. Das zweite Bauteil 24 weist eine zweite Innenrohrleitung 28 und eine zweite Außenrohrleitung 29 auf. Zwischen der ersten Innenrohrleitung 26 und der zweiten Innenrohrleitung 28 kann eine I-Ring-Dichtung 30 angeordnet werden. Solch eine I-Ring-Dichtung 30 kann auch zwischen der ersten Außenrohrleitung 27 und der zweiten Außenrohrleitung 29 angeordnet werden.The
Die Innenrohrleitung 12 und die Außenrohrleitung 4 werden materialeinstückig ausgebildet. Beispielsweise kann dasselbe Material verwendet werden, das auch für das Innengehäuse 3 verwendet wird.The
In der
Eine Erhöhung des Durchsatzes an Kühlmedium in dem Raum 16 erhält man, indem mehrere Kühlmedium-Zuströmungsöffnungen 17 in der Außenrohrleitung 14 angeordnet werden. Die Außenrohrleitung 14 wird sozusagen perforiert.An increase in the flow rate of cooling medium in the
Claims (11)
wobei die Außenrohrleitung (14) an einer ersten Stelle (18) mit der Innenrohrleitung (12) verbunden ist.Steam supply (11) according to claim 1,
wherein the outer pipe (14) is connected to the inner pipe (12) at a first location (18).
wobei die Außenrohrleitung (14) an einer zweiten Stelle (22) mit der Innenrohrleitung (12) verbunden ist.Steam supply (11) according to claim 1 or 2,
wherein the outer tubing (14) is connected to the inner tubing (12) at a second location (22).
wobei die Zuströmöffnung zwischen der ersten (18) und der zweiten Stelle (22) angeordnet ist.Steam supply (11) according to claim 3,
wherein the inflow opening is arranged between the first (18) and the second location (22).
wobei die Außenrohrleitung (14) Befestigungsmittel zum Befestigen an das Außengehäuse (2) aufweist.Steam supply (11) according to one of the preceding claims,
wherein the outer tubing (14) has attachment means for attachment to the outer housing (2).
wobei das Befestigungsmittel eine Schraube umfasst.Steam supply (11) according to claim 5,
wherein the attachment means comprises a screw.
wobei die Außenrohrleitung (14) aus einer ersten Außenrohrleitung (27) und einer zweiten Außenrohrleitung (29) ausgebildet ist, und
wobei die Innenrohrleitung (12) aus einer ersten Innenrohrleitung (26) und einer zweiten Innenrohrleitung (28) ausgebildet ist.Steam supply (11) according to one of the preceding claims,
wherein the outer pipe (14) is formed of a first outer pipe (27) and a second outer pipe (29), and
wherein the inner pipe (12) is formed of a first inner pipe (26) and a second inner pipe (28).
wobei zwischen der ersten Außenrohrleitung (27) und der zweiten Außenrohrleitung (29) eine I-Ring-Dichtung (30) angeordnet ist.Steam supply (11) according to claim 7,
wherein between the first outer pipe (27) and the second outer pipe (29) an I-ring seal (30) is arranged.
wobei zwischen der ersten Innenrohrleitung (26) und der zweiten Innenrohrleitung (28) eine I-Ring-Dichtung (30) angeordnet ist.Steam supply (11) according to claim 7 or 8,
wherein between the first inner pipe (26) and the second inner pipe (28) an I-ring seal (30) is arranged.
wobei um die Innenrohrleitung (12) eine Ummantelung angeordnet ist und die Innenrohrleitung (12) an der Ummantelung befestigt ist.Steam supply (11) according to claim 2,
wherein a casing is arranged around the inner pipe (12) and the inner pipe (12) is fixed to the casing.
wobei die Innenrohrleitung (12) und die Außenrohrleitung (14) materialeinstückig ausgebildet sind.Steam supply (11) according to claim 2 or 3,
wherein the inner pipe (12) and the outer pipe (14) are formed materialeinstückig.
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP07015628A EP2025873A1 (en) | 2007-08-08 | 2007-08-08 | Steam infeed for a steam turbine |
US12/672,134 US8454302B2 (en) | 2007-08-08 | 2008-07-25 | Steam feed for a steam turbine |
AT08775350T ATE500401T1 (en) | 2007-08-08 | 2008-07-25 | STEAM SUPPLY FOR A STEAM TURBINE |
DE502008002747T DE502008002747D1 (en) | 2007-08-08 | 2008-07-25 | STEAM INTRODUCTION FOR A STEAM TURBINE |
PCT/EP2008/059811 WO2009019151A1 (en) | 2007-08-08 | 2008-07-25 | Steam supply for a steam turbine |
JP2010519421A JP5027924B2 (en) | 2007-08-08 | 2008-07-25 | Steam turbine steam injection section |
CN200880102074.9A CN101772621B (en) | 2007-08-08 | 2008-07-25 | Steam supply for a steam turbine |
EP08775350A EP2173973B1 (en) | 2007-08-08 | 2008-07-25 | Steam supply for a steam turbine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP07015628A EP2025873A1 (en) | 2007-08-08 | 2007-08-08 | Steam infeed for a steam turbine |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2025873A1 true EP2025873A1 (en) | 2009-02-18 |
Family
ID=38955923
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07015628A Withdrawn EP2025873A1 (en) | 2007-08-08 | 2007-08-08 | Steam infeed for a steam turbine |
EP08775350A Not-in-force EP2173973B1 (en) | 2007-08-08 | 2008-07-25 | Steam supply for a steam turbine |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08775350A Not-in-force EP2173973B1 (en) | 2007-08-08 | 2008-07-25 | Steam supply for a steam turbine |
Country Status (7)
Country | Link |
---|---|
US (1) | US8454302B2 (en) |
EP (2) | EP2025873A1 (en) |
JP (1) | JP5027924B2 (en) |
CN (1) | CN101772621B (en) |
AT (1) | ATE500401T1 (en) |
DE (1) | DE502008002747D1 (en) |
WO (1) | WO2009019151A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3406951A1 (en) * | 2017-05-24 | 2018-11-28 | Siemens Aktiengesellschaft | Cooling assembly for cooling a union nut for a valve of a steam turbine |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2800299A (en) * | 1955-09-30 | 1957-07-23 | Gen Electric | Nozzlebox structure for high temperature steam turbine |
GB825849A (en) * | 1955-03-01 | 1959-12-23 | Gen Electric | Improvements relating to elastic fluid turbines |
GB1135767A (en) * | 1965-04-02 | 1968-12-04 | Ass Elect Ind | Improvements in or relating to steam turbines |
EP0128343A1 (en) * | 1983-06-09 | 1984-12-19 | BBC Aktiengesellschaft Brown, Boveri & Cie. | Double casing turbine with at least one valve for the horizontal supply of steam |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
JPH0674722B2 (en) * | 1984-10-15 | 1994-09-21 | 株式会社日立製作所 | Structure of steam inlet of steam turbine |
US4772178A (en) * | 1987-01-28 | 1988-09-20 | Westinghouse Electric Corp. | Thermal shield for the steam inlet connection of a steam turbine |
DE3905900A1 (en) * | 1989-02-25 | 1990-08-30 | Gutehoffnungshuette Man | FRESH STEAM PERFORMANCE FOR STEAM TURBINES IN DOUBLE HOUSING DESIGN |
JPH0662936B2 (en) | 1989-07-28 | 1994-08-17 | サンデン株式会社 | Method of releasing supercooling of heat storage agent having supercooling property |
JPH05113104A (en) * | 1991-10-21 | 1993-05-07 | Fuji Electric Co Ltd | Steam extraction part of steam turbine |
JPH07145707A (en) * | 1993-11-24 | 1995-06-06 | Mitsubishi Heavy Ind Ltd | Steam turbine |
JP4455254B2 (en) * | 2004-09-30 | 2010-04-21 | 株式会社東芝 | Steam turbine and steam turbine plant provided with the same |
-
2007
- 2007-08-08 EP EP07015628A patent/EP2025873A1/en not_active Withdrawn
-
2008
- 2008-07-25 US US12/672,134 patent/US8454302B2/en not_active Expired - Fee Related
- 2008-07-25 JP JP2010519421A patent/JP5027924B2/en not_active Expired - Fee Related
- 2008-07-25 EP EP08775350A patent/EP2173973B1/en not_active Not-in-force
- 2008-07-25 AT AT08775350T patent/ATE500401T1/en active
- 2008-07-25 WO PCT/EP2008/059811 patent/WO2009019151A1/en active Application Filing
- 2008-07-25 CN CN200880102074.9A patent/CN101772621B/en not_active Expired - Fee Related
- 2008-07-25 DE DE502008002747T patent/DE502008002747D1/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB825849A (en) * | 1955-03-01 | 1959-12-23 | Gen Electric | Improvements relating to elastic fluid turbines |
US2800299A (en) * | 1955-09-30 | 1957-07-23 | Gen Electric | Nozzlebox structure for high temperature steam turbine |
GB1135767A (en) * | 1965-04-02 | 1968-12-04 | Ass Elect Ind | Improvements in or relating to steam turbines |
EP0128343A1 (en) * | 1983-06-09 | 1984-12-19 | BBC Aktiengesellschaft Brown, Boveri & Cie. | Double casing turbine with at least one valve for the horizontal supply of steam |
Also Published As
Publication number | Publication date |
---|---|
JP2011510200A (en) | 2011-03-31 |
ATE500401T1 (en) | 2011-03-15 |
US20110226376A1 (en) | 2011-09-22 |
WO2009019151A9 (en) | 2010-06-10 |
WO2009019151A1 (en) | 2009-02-12 |
CN101772621B (en) | 2013-05-15 |
US8454302B2 (en) | 2013-06-04 |
EP2173973B1 (en) | 2011-03-02 |
DE502008002747D1 (en) | 2011-04-14 |
EP2173973A1 (en) | 2010-04-14 |
CN101772621A (en) | 2010-07-07 |
JP5027924B2 (en) | 2012-09-19 |
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