EP2690253A1 - Low pressure turbine - Google Patents

Low pressure turbine Download PDF

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Publication number
EP2690253A1
EP2690253A1 EP12178221.3A EP12178221A EP2690253A1 EP 2690253 A1 EP2690253 A1 EP 2690253A1 EP 12178221 A EP12178221 A EP 12178221A EP 2690253 A1 EP2690253 A1 EP 2690253A1
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EP
European Patent Office
Prior art keywords
low
pressure turbine
flood
exhaust steam
steam
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP12178221.3A
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German (de)
French (fr)
Inventor
Patrick Bison
Sebastian Voss
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 EP12178221.3A priority Critical patent/EP2690253A1/en
Priority to US14/414,112 priority patent/US20150167468A1/en
Priority to CN201380039726.XA priority patent/CN104508243B/en
Priority to PL13745005T priority patent/PL2877699T3/en
Priority to IN10803DEN2014 priority patent/IN2014DN10803A/en
Priority to EP13745005.2A priority patent/EP2877699B1/en
Priority to KR20157001708A priority patent/KR20150036154A/en
Priority to RU2015106499A priority patent/RU2015106499A/en
Priority to PCT/EP2013/065466 priority patent/WO2014016272A1/en
Priority to JP2015523522A priority patent/JP6005861B2/en
Priority to ES13745005.2T priority patent/ES2619602T3/en
Priority to BR112015001665A priority patent/BR112015001665A2/en
Publication of EP2690253A1 publication Critical patent/EP2690253A1/en
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D3/00—Machines or engines with axial-thrust balancing effected by working-fluid
    • F01D3/02—Machines or engines with axial-thrust balancing effected by working-fluid characterised by having one fluid flow in one axial direction and another fluid flow in the opposite direction
    • 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
    • F01D25/30—Exhaust heads, chambers, or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K7/00—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
    • F01K7/16—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being only of turbine type
    • F01K7/30—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being only of turbine type the turbines using exhaust steam only
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2220/00—Application
    • F05B2220/30—Application in turbines
    • F05B2220/301—Application in turbines in steam turbines

Definitions

  • the invention relates to a low-pressure turbine comprising a first flood and a second flood and a rotor and an inner housing arranged around the rotor and an outer housing arranged around the inner housing.
  • the invention relates to a method for operating a low-pressure turbine part, wherein the low-pressure turbine part is performed double-flow.
  • Steam turbines are usually divided into sub-turbines.
  • a steam turbine that is used in the municipal energy supply, divided into a high-pressure turbine section, medium-pressure turbine section and low-pressure turbine section.
  • Each of these individual aforementioned sub-turbines is housed in a single housing each.
  • construction methods are known in which the high-pressure and medium-pressure parts are accommodated in a common housing.
  • constructions are known in which the medium-pressure part and the low-pressure part are arranged in a common housing.
  • An axial arrangement of the individual turbine parts in a row requires a comparatively large amount of installation space.
  • the low-pressure turbine sections are usually designed with two columns. This means that the incoming steam flows off both in one direction and axially in the opposite direction. Low-pressure turbine sections are designed such that the exhaust steam in the one flood and the exhaust steam in the second flood are discharged laterally. This is also known under the term Single Side Exhaust or Double Side Exhaust.
  • a further embodiment provides that the low-pressure exhaust steam is discharged downwards (so-called down exhaust). As a rule, this leads to an increased space requirement, since such executed low-pressure turbine sections must be constructed either very wide or very high.
  • the piping guide is concentrated on one side and could therefore lead to space problems. It would be desirable to have a narrow engine house in which the turbine parts can be arranged. Furthermore, it is desirable to be able to implement a well-structured piping.
  • the object of the invention is to provide a low-pressure turbine part, which requires a smaller footprint.
  • a low-pressure turbine part comprising a first flood and a second flood and a rotor and an inner housing arranged around the rotor and an outer housing arranged around the inner housing, wherein the Abdampfraum the first flood is designed such that during operation Exhaust steam flowing through the low-pressure turbine part flows from the first flood in substantially the same direction as the exhaust steam from the second flood.
  • the object is achieved by a method for operating a low-pressure turbine section, wherein the low-pressure turbine section is executed double-flooded and the exhaust steam is deflected from the first flood in the direction of the exhaust steam of the second flood.
  • the invention is based on the aspect that a Abdampe arrangement the low-pressure exhaust steam leads laterally or down to a huge amount of space, which are thereby eliminated can that the low-pressure exhaust steam is guided so that it is flowed axially.
  • the invention proposes to form the outer housing such that the Abdampfraum the second flood is designed such that the steam is deflected in the same direction as the exhaust steam of the first flood. This means that the low-pressure Abdampf the second flood is redirected in the direction of the low-pressure Abdampfes the first flood.
  • annular space is thus formed between the inner housing and the outer housing, through which a low-pressure exhaust steam of the second tide flows and mixes with the low-pressure exhaust steam of the first tide on the output side.
  • Alternative embodiment would be a box-shaped construction of the inner housing outer wall, so that the inner housing could be placed in the resulting space on the foundation.
  • a low-pressure turbine part 1 is shown, which is designed with two columns. This means that the low-pressure turbine part 1 has a first flood 2 and a second flood 3. Fresh steam flows into the low-pressure turbine section 1 via an inflow pipe 4. Between one around an axis of rotation 5 rotatably mounted rotor 6 and arranged around the rotor 6 inner housing 7, a flow path 8 is formed.
  • the rotor 6 is formed with individual blades 10. For the sake of clarity, only one blade is provided with the reference numeral 10. Between the individual blade stages arranged on the inner housing 7 vanes 11 are arranged. For reasons of clarity, only one vane is provided with the reference numeral 11.
  • the low-pressure exhaust steam 12 is deflected in the second flood 3 through the inner housing 7.
  • the outer housing 9 has for this purpose deflecting elements 13, which deflect the steam again in the axial direction to the first flood 2.
  • an annular space 14 is formed through which the low-pressure exhaust steam 12 of the second flood 3 flows.
  • the low-pressure exhaust steam 16 of the first flow 2 is mixed with the low-pressure exhaust steam of the second flow 12. It is important to ensure that in the mixing zone 15, the speeds of the low-pressure exhaust steam 16 of the first tide 2 is substantially equal to the speed of the low-pressure exhaust steam 12 of the second tide third

Abstract

The low pressure partial turbine (1) has two low pressure-evaporating units (12,16), a rotor (6), an inner housing (7) arranged around the rotor, and an outer housing (9) arranged around the inner housing. The outer housing is formed with a reconducting vapor space. An annular space (14) is formed between the inner housing and the outer housing. An independent claim is included for method for operating a low pressure partial turbine.

Description

Die Erfindung betrifft eine Niederdruck-Turbine umfassend eine erste Flut und eine zweite Flut sowie einen Rotor und ein um den Rotor angeordnetes Innengehäuse und ein um das Innengehäuse angeordnetes Außengehäuse.The invention relates to a low-pressure turbine comprising a first flood and a second flood and a rotor and an inner housing arranged around the rotor and an outer housing arranged around the inner housing.

Des Weiteren betrifft die Erfindung ein Verfahren zum Betreiben einer Niederdruck-Teilturbine, wobei die Niederdruck-Teilturbine doppelflutig ausgeführt wird.Furthermore, the invention relates to a method for operating a low-pressure turbine part, wherein the low-pressure turbine part is performed double-flow.

Dampfturbinen werden üblicherweise in Teilturbinen eingeteilt. So wird bspw. eine Dampfturbine, die in der kommunalen Energieversorgung eingesetzt wird, in eine Hochdruck-Teilturbine, Mitteldruck-Teilturbine und Niederdruck-Teilturbine eingeteilt. Jede dieser einzelnen vorgenannten Teilturbinen wird jeweils in einem einzelnen Gehäuse untergebracht. Des Weiteren sind Bauweisen bekannt, in denen der Hochdruck- und Mitteldruckteil in einem gemeinsamen Gehäuse untergebracht sind. Ebenso sind Bauweisen bekannt, in denen der Mitteldruckteil und der Niederdruckteil in einem gemeinsamen Gehäuse angeordnet sind. Eine axiale Anordnung der einzelnen Teilturbinen hintereinander erfordert vergleichsweise viel Bauraum.Steam turbines are usually divided into sub-turbines. For example, a steam turbine that is used in the municipal energy supply, divided into a high-pressure turbine section, medium-pressure turbine section and low-pressure turbine section. Each of these individual aforementioned sub-turbines is housed in a single housing each. Furthermore, construction methods are known in which the high-pressure and medium-pressure parts are accommodated in a common housing. Likewise, constructions are known in which the medium-pressure part and the low-pressure part are arranged in a common housing. An axial arrangement of the individual turbine parts in a row requires a comparatively large amount of installation space.

Da aus thermodynamischen Gründen der Druck und die Temperatur des Dampfes von der Hochdruck-Teilturbine bis zur Niederdruck-Teilturbine abnehmen und dadurch das Volumen stark zunimmt, werden in manchen Fällen mehrere Teilturbinen eingesetzt. Außerdem sind die Niederdruck-Teilturbinen in der Regel zweiflutig ausgeführt. Das bedeutet, dass der einströmende Dampf sowohl in die eine Richtung als auch axial in die entgegengesetzte Richtung abströmt. Niederdruck-Teilturbinen werden derart ausgeführt, dass der Abdampf in der einen Flut und der Abdampf in der zweiten Flut seitlich abgeführt werden. Dies ist auch unter dem Begriff Single Side Exhaust oder Double Side Exhaust bekannt. Eine weitere Ausführungsform sieht vor, dass der Niederdruck-Abdampf nach unten (so genannter Down Exhaust) abgeführt wird. In der Regel führt dies zu einem erhöhten Platzbedarf, da solch ausgeführte Niederdruck-Teilturbinen entweder sehr breit oder sehr hoch aufgebaut sein müssen. Insbesondere ist bei einer Single Side Exhaust-Aufstellung die Rohrleitungsführung auf einer Seite konzentriert und könnte somit zu Platzproblemen führen. Wünschenswert wäre es, ein schmales Maschinenhaus zu haben, in dem die Teilturbinen angeordnet werden können. Des Weiteren ist es wünschenswert, eine gut strukturierte Rohrleitungsführung umsetzen zu können.Since, for thermodynamic reasons, the pressure and the temperature of the steam from the high-pressure turbine to the low-pressure turbine part decrease and thereby the volume greatly increases, in some cases, several sub-turbines are used. In addition, the low-pressure turbine sections are usually designed with two columns. This means that the incoming steam flows off both in one direction and axially in the opposite direction. Low-pressure turbine sections are designed such that the exhaust steam in the one flood and the exhaust steam in the second flood are discharged laterally. This is also known under the term Single Side Exhaust or Double Side Exhaust. A further embodiment provides that the low-pressure exhaust steam is discharged downwards (so-called down exhaust). As a rule, this leads to an increased space requirement, since such executed low-pressure turbine sections must be constructed either very wide or very high. In particular, in a single-side exhaust setup, the piping guide is concentrated on one side and could therefore lead to space problems. It would be desirable to have a narrow engine house in which the turbine parts can be arranged. Furthermore, it is desirable to be able to implement a well-structured piping.

Aufgabe der Erfindung ist es, eine Niederdruck-Teilturbine anzugeben, die einen geringeren Platzbedarf benötigt.The object of the invention is to provide a low-pressure turbine part, which requires a smaller footprint.

Gelöst wird diese Aufgabe durch eine Niederdruck-Teilturbine, umfassend eine erste Flut und eine zweite Flut sowie einen Rotor und ein um den Rotor angeordnetes Innengehäuse und ein um das Innengehäuse angeordnetes Außengehäuse, wobei der Abdampfraum der ersten Flut derart ausgebildet ist, dass ein im Betrieb durch die Niederdruck-Teilturbine strömender Abdampf aus der ersten Flut im Wesentlichen in die gleiche Richtung strömt wie der Abdampf aus der zweiten Flut.This object is achieved by a low-pressure turbine part, comprising a first flood and a second flood and a rotor and an inner housing arranged around the rotor and an outer housing arranged around the inner housing, wherein the Abdampfraum the first flood is designed such that during operation Exhaust steam flowing through the low-pressure turbine part flows from the first flood in substantially the same direction as the exhaust steam from the second flood.

Des Weiteren wird die Aufgabe gelöst durch ein Verfahren zum Betreiben einer Niederdruck-Teilturbine, wobei die Niederdruck-Teilturbine doppelflutig ausgeführt wird und der Abdampf aus der ersten Flut in Richtung des Abdampfes der zweiten Flut umgelenkt wird.Furthermore, the object is achieved by a method for operating a low-pressure turbine section, wherein the low-pressure turbine section is executed double-flooded and the exhaust steam is deflected from the first flood in the direction of the exhaust steam of the second flood.

Vorteilhafte Weiterbildungen sind in den Unteransprüchen angegeben.Advantageous developments are specified in the subclaims.

Die Erfindung geht von dem Aspekt aus, dass eine Abdampfführung des Niederdruck-Abdampfes seitlich oder nach unten zu einem enormen Platzbedarf führt, der dadurch beseitigt werden kann, dass der Niederdruck-Abdampf derart geführt wird, dass dieser axial abgeströmt wird. Dazu wird erfindungsgemäß vorgeschlagen, das Außengehäuse derart auszubilden, dass der Abdampfraum der zweiten Flut derart ausgebildet ist, dass der Dampf in die gleiche Richtung umgelenkt wird wie der Abdampf der ersten Flut. Das bedeutet, dass der Niederdruck-Abdampf der zweiten Flut in die Richtung des Niederdruck-Abdampfes der ersten Flut umgelenkt wird.The invention is based on the aspect that a Abdampeführung the low-pressure exhaust steam leads laterally or down to a huge amount of space, which are thereby eliminated can that the low-pressure exhaust steam is guided so that it is flowed axially. For this purpose, the invention proposes to form the outer housing such that the Abdampfraum the second flood is designed such that the steam is deflected in the same direction as the exhaust steam of the first flood. This means that the low-pressure Abdampf the second flood is redirected in the direction of the low-pressure Abdampfes the first flood.

Vorteilhafterweise wird somit ein Ringraum zwischen dem Innengehäuse und dem Außengehäuse ausgebildet, durch den ein Niederdruck-Abdampf der zweiten Flut strömt und sich mit dem Niederdruck-Abdampf der ersten Flut ausgangsseitig vermischt.Advantageously, an annular space is thus formed between the inner housing and the outer housing, through which a low-pressure exhaust steam of the second tide flows and mixes with the low-pressure exhaust steam of the first tide on the output side.

Alternative Ausführungsform wäre eine kastenförmige Bauweise der Innengehäuse-Außenwand, so dass das Innengehäuse im so entstandenen Raum auf dem Fundament aufgelegt werden könnte.Alternative embodiment would be a box-shaped construction of the inner housing outer wall, so that the inner housing could be placed in the resulting space on the foundation.

Es wird somit erfindungsgemäß vorgeschlagen, ein neues Außengehäuse für eine zweiflutige Niederdruck-Teilturbine auszubilden, mit der eine axiale Abströmung möglich ist. Dadurch können die Maschinenhauskosten reduziert werden. Des Weiteren ist dadurch eine Harmonisierung der Basiskraftwerke möglich. Demzufolge sind erhebliche Kosteneinsparungen möglich.It is thus proposed according to the invention to form a new outer housing for a two-flow low-pressure turbine section with which an axial outflow is possible. As a result, the machine house costs can be reduced. Furthermore, a harmonization of the base power plants is possible. As a result, significant cost savings are possible.

Die Erfindung wird anhand eines Ausführungsbeispiels näher erläutert.The invention will be explained in more detail with reference to an embodiment.

Es zeigen:

Figur
eine schematische Querschnittsansicht einer Niederdruck-Teilturbine.
Show it:
figure
a schematic cross-sectional view of a low pressure turbine part.

In der Figur ist eine Niederdruck-Teilturbine 1 dargestellt, die zweiflutig ausgeführt ist. Das bedeutet, dass die Niederdruck-Teilturbine 1 eine erste Flut 2 und eine zweite Flut 3 aufweist. Über einen Einströmstutzen 4 strömt Frischdampf in die Niederdruck-Teilturbine 1. Zwischen einem um eine Rotationsachse 5 drehbar gelagerten Rotor 6 und einem um den Rotor 6 angeordneten Innengehäuse 7 ist ein Strömungspfad 8 ausgebildet.In the figure, a low-pressure turbine part 1 is shown, which is designed with two columns. This means that the low-pressure turbine part 1 has a first flood 2 and a second flood 3. Fresh steam flows into the low-pressure turbine section 1 via an inflow pipe 4. Between one around an axis of rotation 5 rotatably mounted rotor 6 and arranged around the rotor 6 inner housing 7, a flow path 8 is formed.

Um das Innengehäuse 7 ist ein Außengehäuse 9 angeordnet. Der Rotor 6 ist mit einzelnen Laufschaufeln 10 ausgebildet. Der Übersichtlichkeit wegen ist lediglich eine Laufschaufel mit dem Bezugszeichen 10 versehen. Zwischen den einzelnen Laufschaufelstufen sind am Innengehäuse 7 angeordnete Leitschaufeln 11 angeordnet. Aus Gründen der Übersichtlichkeit ist lediglich eine Leitschaufel mit dem Bezugszeichen 11 versehen.To the inner housing 7, an outer housing 9 is arranged. The rotor 6 is formed with individual blades 10. For the sake of clarity, only one blade is provided with the reference numeral 10. Between the individual blade stages arranged on the inner housing 7 vanes 11 are arranged. For reasons of clarity, only one vane is provided with the reference numeral 11.

Über den Einströmstutzen 4 strömt Frischdampf ein und entspannt sich in der ersten Flut 2 in der Zeichenebene gesehen nach rechts und in die zweite Flut 3 in der Zeichenebene gesehen nach links aus. Im Strömungspfad 8 entspannt sich der Dampf und kühlt dabei ab. Nach der letzten Lauf- und Leitschaufel 10, 11 wird der Niederdruck-Abdampf 12 in der zweiten Flut 3 durch das Innengehäuse 7 abgelenkt. Das Außengehäuse 9 weist hierzu Umlenkelemente 13 auf, die den Dampf wieder in die axiale Richtung zur ersten Flut 2 umlenken. Zwischen dem Außengehäuse 9 und dem Innengehäuse 7 ist ein Ringraum 14 ausgebildet, durch den der Niederdruck-Abdampf 12 der zweiten Flut 3 strömt. In einer Vermischungszone 15 wird der Niederdruck-Abdampf 16 der ersten Flut 2 mit dem Niederdruck-Abdampf der zweiten Flut 12 vermischt. Dabei ist darauf zu achten, dass in der Vermischungszone 15 die Geschwindigkeiten des Niederdruck-Abdampfes 16 der ersten Flut 2 im Wesentlichen gleich ist wie die Geschwindigkeit des Niederdruck-Abdampfes 12 der zweiten Flut 3.Fresh steam flows in via the inflow pipe 4 and relaxes in the first tide 2 in the drawing plane to the right and into the second tide 3 in the drawing plane to the left. In the flow path 8, the steam relaxes and cools down. After the last rotor and guide vane 10, 11, the low-pressure exhaust steam 12 is deflected in the second flood 3 through the inner housing 7. The outer housing 9 has for this purpose deflecting elements 13, which deflect the steam again in the axial direction to the first flood 2. Between the outer housing 9 and the inner housing 7, an annular space 14 is formed through which the low-pressure exhaust steam 12 of the second flood 3 flows. In a mixing zone 15, the low-pressure exhaust steam 16 of the first flow 2 is mixed with the low-pressure exhaust steam of the second flow 12. It is important to ensure that in the mixing zone 15, the speeds of the low-pressure exhaust steam 16 of the first tide 2 is substantially equal to the speed of the low-pressure exhaust steam 12 of the second tide third

Anschließend strömt der aus dem Niederdruck-Abdampf 16 der ersten Flut 2 und dem Niederdruck-Abdampf 12 der zweiten Flut 3 vermischte Dampf in einen Abdampfraum 17 und nach diesem Abdampfraum 17 zum nicht näher dargestellten Kondensator. Im Abdampfraum 17 ist ein Fundament für ein Lager 18 angeordnet, auf dem der Rotor 6 gelagert ist. Die Stelle des Lagers 18 kann im Dampfraum angeordnet sein oder in alternativen Ausführungsformen als separates gekapseltes Fundament außerhalb des Dampfraumes stehen.Subsequently, the steam mixed from the low-pressure exhaust steam 16 of the first tide 2 and the low-pressure exhaust steam 12 of the second tide 3 flows into an exhaust steam chamber 17 and, after this exhaust steam chamber 17, to the condenser, which is not shown in detail. In Abdampfraum 17 a foundation for a bearing 18 is arranged, on which the rotor 6 is mounted. The location of the warehouse 18 may be disposed in the vapor space or, in alternative embodiments, stand outside the vapor space as a separate, encapsulated foundation.

Claims (6)

Niederdruck-Teilturbine (1) umfassend eine erste Flut (2) und eine zweite Flut (3) sowie einen Rotor (6) und ein um den Rotor (6) angeordnetes Innengehäuse (7) und ein um das Innengehäuse (7) angeordnetes Außengehäuse (9), dadurch gekennzeichnet, dass
die Niederdruck-Teilturbine (1) derart ausgebildet ist, dass ein im Betrieb durch die Niederdruck-Teilturbine strömender Abdampf (16) aus der ersten Flut (2) im Wesentlichen in die gleiche Richtung strömt wie der Abdampf (12) aus der zweiten Flut (3).Low-pressure turbine part (1) comprising a first flood (2) and a second flood (3) and a rotor (6) and an inner housing (7) arranged around the rotor (6) and an outer housing (7) arranged around the inner housing (7). 9), characterized in that
the low-pressure turbine section (1) is designed such that an exhaust steam (16) flowing through the low-pressure turbine section during operation flows from the first flow (2) in substantially the same direction as the exhaust steam (12) from the second flow (FIG. 3). Niederdruck-Teilturbine (1) nach Anspruch 1,
wobei das Außengehäuse (9) einen Rückführdampfraum zum Rückführen des Dampfes zum Abdampfraum der zweiten Flut (3) aufweist.Low pressure turbine part (1) according to claim 1,
wherein the outer housing (9) has a return steam space for returning the steam to the Abdampfraum the second flood (3). Niederdruck-Teilturbine (1) nach Anspruch 1 oder 2,
mit einem Ringraum (14), der zwischen dem Innengehäuse (7) und dem Außengehäuse (9) angeordnet ist.Low pressure turbine part (1) according to claim 1 or 2,
with an annular space (14) which is arranged between the inner housing (7) and the outer housing (9). Verfahren zum Betreiben einer Niederdruck-Teilturbine (1),
wobei die Niederdruck-Teilturbine (1) doppelflutig ausgeführt wird und der Abdampf aus der ersten Flut (2) in Richtung des Abdampfes der zweiten Flut (3) umgelenkt wird.Method for operating a low-pressure turbine part (1),
wherein the low-pressure turbine part (1) is double-flow and the exhaust steam from the first flood (2) in the direction of the exhaust steam of the second flood (3) is deflected. Verfahren nach Anspruch 4,
wobei die Umlenkung im Außengehäuse (9) erfolgt.Method according to claim 4,
wherein the deflection takes place in the outer housing (9). Verfahren nach Anspruch 4 oder 5,
wobei der Abdampf von der ersten Flut (2) und der zweiten Flut (3) in einen Kondensator kondensiert.Method according to claim 4 or 5,
wherein the exhaust steam from the first flow (2) and the second flow (3) condenses into a condenser.
EP12178221.3A 2012-07-27 2012-07-27 Low pressure turbine Withdrawn EP2690253A1 (en)

Priority Applications (12)

Application Number Priority Date Filing Date Title
EP12178221.3A EP2690253A1 (en) 2012-07-27 2012-07-27 Low pressure turbine
US14/414,112 US20150167468A1 (en) 2012-07-27 2013-07-23 Low-pressure turbine
CN201380039726.XA CN104508243B (en) 2012-07-27 2013-07-23 low-pressure turbine
PL13745005T PL2877699T3 (en) 2012-07-27 2013-07-23 Low pressure turbine
IN10803DEN2014 IN2014DN10803A (en) 2012-07-27 2013-07-23
EP13745005.2A EP2877699B1 (en) 2012-07-27 2013-07-23 Low pressure turbine
KR20157001708A KR20150036154A (en) 2012-07-27 2013-07-23 Low-pressure turbine
RU2015106499A RU2015106499A (en) 2012-07-27 2013-07-23 LOW PRESSURE TURBINE
PCT/EP2013/065466 WO2014016272A1 (en) 2012-07-27 2013-07-23 Low-pressure turbine
JP2015523522A JP6005861B2 (en) 2012-07-27 2013-07-23 Low pressure turbine
ES13745005.2T ES2619602T3 (en) 2012-07-27 2013-07-23 Low pressure turbine
BR112015001665A BR112015001665A2 (en) 2012-07-27 2013-07-23 low pressure partial turbine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12178221.3A EP2690253A1 (en) 2012-07-27 2012-07-27 Low pressure turbine

Publications (1)

Publication Number Publication Date
EP2690253A1 true EP2690253A1 (en) 2014-01-29

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EP12178221.3A Withdrawn EP2690253A1 (en) 2012-07-27 2012-07-27 Low pressure turbine
EP13745005.2A Not-in-force EP2877699B1 (en) 2012-07-27 2013-07-23 Low pressure turbine

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EP13745005.2A Not-in-force EP2877699B1 (en) 2012-07-27 2013-07-23 Low pressure turbine

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US (1) US20150167468A1 (en)
EP (2) EP2690253A1 (en)
JP (1) JP6005861B2 (en)
KR (1) KR20150036154A (en)
CN (1) CN104508243B (en)
BR (1) BR112015001665A2 (en)
ES (1) ES2619602T3 (en)
IN (1) IN2014DN10803A (en)
PL (1) PL2877699T3 (en)
RU (1) RU2015106499A (en)
WO (1) WO2014016272A1 (en)

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Publication number Priority date Publication date Assignee Title
DE102016118296A1 (en) 2016-09-28 2018-03-29 Man Diesel & Turbo Se steam turbine
JP6632510B2 (en) * 2016-10-31 2020-01-22 三菱重工業株式会社 Steam turbine exhaust chamber, flow guide for steam turbine exhaust chamber, and steam turbine

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US1405090A (en) * 1917-08-24 1922-01-31 British Westinghouse Electric Semidouble-flow steam turbine
DE1812487A1 (en) * 1968-12-03 1970-08-13 Siemens Ag Housing arrangement for low pressure parts of steam turbines in fully welded multi-shell construction
US3915588A (en) * 1973-10-16 1975-10-28 Bbc Brown Boveri & Cie Two-shell axial-plane split casing structure for high-capacity low-pressure sections of a steam turbine
US4102598A (en) * 1975-11-11 1978-07-25 Westinghouse Electric Corp. Single case low pressure turbine
US4557113A (en) * 1984-06-15 1985-12-10 Westinghouse Electric Corp. Single low pressure turbine with zoned condenser

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US2394125A (en) * 1943-11-01 1946-02-05 Gen Electric Tandem compound elastic fluid turbine arrangement
JPS542B2 (en) * 1975-02-26 1979-01-05
JPS5846807U (en) * 1981-09-25 1983-03-29 株式会社東芝 steam turbine casing
CN1038492A (en) * 1988-06-08 1990-01-03 涡轮机制造生产联合企业“列宁格勒金属厂” Method for counteracting reverse moment on steam turbine cylinder
DE4422700A1 (en) * 1994-06-29 1996-01-04 Abb Management Ag Diffuser for turbomachinery
EP2187004A1 (en) * 2008-11-13 2010-05-19 Siemens Aktiengesellschaft Internal casing for a current machine
EP2295725A1 (en) * 2009-08-13 2011-03-16 Siemens Aktiengesellschaft Fluid flow engine with steam removal

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1405090A (en) * 1917-08-24 1922-01-31 British Westinghouse Electric Semidouble-flow steam turbine
DE1812487A1 (en) * 1968-12-03 1970-08-13 Siemens Ag Housing arrangement for low pressure parts of steam turbines in fully welded multi-shell construction
US3915588A (en) * 1973-10-16 1975-10-28 Bbc Brown Boveri & Cie Two-shell axial-plane split casing structure for high-capacity low-pressure sections of a steam turbine
US4102598A (en) * 1975-11-11 1978-07-25 Westinghouse Electric Corp. Single case low pressure turbine
US4557113A (en) * 1984-06-15 1985-12-10 Westinghouse Electric Corp. Single low pressure turbine with zoned condenser

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BR112015001665A2 (en) 2017-07-04
CN104508243B (en) 2016-05-11
JP2015523496A (en) 2015-08-13
EP2877699B1 (en) 2016-12-14
WO2014016272A1 (en) 2014-01-30
US20150167468A1 (en) 2015-06-18
ES2619602T3 (en) 2017-06-26
RU2015106499A (en) 2016-09-20
EP2877699A1 (en) 2015-06-03
PL2877699T3 (en) 2017-06-30
IN2014DN10803A (en) 2015-09-04
KR20150036154A (en) 2015-04-07
JP6005861B2 (en) 2016-10-12
CN104508243A (en) 2015-04-08

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