EP2510195A1 - Inner housing for a flow machine - Google Patents

Inner housing for a flow machine

Info

Publication number
EP2510195A1
EP2510195A1 EP10790396A EP10790396A EP2510195A1 EP 2510195 A1 EP2510195 A1 EP 2510195A1 EP 10790396 A EP10790396 A EP 10790396A EP 10790396 A EP10790396 A EP 10790396A EP 2510195 A1 EP2510195 A1 EP 2510195A1
Authority
EP
European Patent Office
Prior art keywords
housing
inner housing
parting line
steam
horizontal
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.)
Granted
Application number
EP10790396A
Other languages
German (de)
French (fr)
Other versions
EP2510195B1 (en
Inventor
Christian Cukjati
Heinz Dallinger
Thomas Müller
Norbert Thamm
Andreas Ulma
Michael Wechsung
Uwe Zander
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 EP10790396.5A priority Critical patent/EP2510195B1/en
Publication of EP2510195A1 publication Critical patent/EP2510195A1/en
Application granted granted Critical
Publication of EP2510195B1 publication Critical patent/EP2510195B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F01D25/24—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
    • 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

Definitions

  • the invention relates to a housing for a
  • Turbomachine wherein the housing comprises a first part and a second part.
  • a steam turbine conventionally includes a rotatably mounted rotor and a housing disposed about the rotor. Between the rotor and the inner housing, a flow channel is formed.
  • the housing in a steam turbine must be able to fulfill several functions.
  • the guide vanes are arranged in the flow channel on the housing and, secondly, the inner housing must withstand the pressure and the temperatures of the flow medium for all load and special operating cases.
  • nickel-based alloys are suitable, since they can be used at high temperatures. withstand.
  • the use of such a nickel-based alloy is associated with new challenges.
  • the cost of nickel-based alloys is comparatively high and also the manufacturability of nickel-based alloys, eg by limited casting possibility be ⁇ limits.
  • the use of nickel-based materials must be minimized.
  • the nickel-based materials are poor heat conductors.
  • the temperature gradients over the wall thickness are so rigid that thermal stresses are comparatively high.
  • Exterior housing structure incorporate according to the article Y.
  • Inner housing structure disclosed and in DE 103 53 451 AI.
  • Steam turbines which are designed for high pressures and high steam temperatures, usually have an inner housing and an outer housing.
  • the outer casing is usually
  • Outer housing is designed as a pot housing.
  • Inner housing is usually made in two parts and also has a horizontal parting line.
  • the inner housing has inlet openings, which must be sufficiently dimensioned to the necessary for the power generation and the steam valves supplied steam masses or To absorb steam flow. In addition, the steam mass and the vapor flow must be performed evenly to the turbine blading.
  • Steam turbines have an inner housing, which consists of an upper part and a lower part.
  • the distance of the horizontal parting line to the center of the steam turbine is defined by the required cross-section, which is used for the
  • the inflow takes place via two inlet openings in the lower part.
  • the dimensioning of the parting screw is done via the cross-sectional area in the parting line.
  • the invention begins, whose task is to provide a housing in which smaller dimensioned parting screws can be used.
  • the invention is based on the aspect that a horizontal parting can be omitted in the inner housing and instead a vertical parting line is used.
  • Parting joint is thus in the 12 and 6 o'clock position.
  • Flow of the inflow channel may be that of
  • the part-joint screws can be arranged closer to the center of the turbine, thus reducing the size of the part-joint screw
  • the first part and / or the second part has
  • Figure 1 is a sectional view through a
  • the steam turbine 1 shown in Figure 1 is a
  • the steam turbine 1 comprises an outer housing 2 and an inner housing 3.
  • the inner housing 3 comprises a first part 3a and a second part 3b.
  • the first part 3a and the second part 3b is formed via a vertical parting line 5.
  • the first part 3a and the second part 3b will not talk about
  • the vertical parting line 5 refers to a horizontal line 6, which corresponds to the natural horizontal in operation.
  • the vertical parting line 5 does not have to be rotated exactly 90 ° with respect to the horizontal line 6. Rather, the vertical parting line in an angular range of -10 ° to + 10 ° relative to the theoretically exact vertical line, which is rotated 90 ° relative to the horizontal line 6, may be formed.
  • the first part 3a and the second part 3b each have an inflow opening 7, via which a steam flows in operation into a flow channel, not shown.
  • Outer housing 2 has a horizontal parting line 8. Therefore, the outer case 2 has an upper part 2a and a lower part 2b.
  • the steam turbine 1 can be used in the high pressure range or in the medium pressure range.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

The invention relates to an inner housing (3, 3a, 3b) for a flow machine, in particular for a steam turbine, wherein the inner housing (3, 3a, 3b) comprises a first part (3a) and a second part (3b), wherein a vertical joint (5) is formed between the first part (3a) and the second part (3b).

Description

Beschreibung description
Innengehäuse für eine Strömungsmaschine Inner housing for a turbomachine
Die Erfindung betrifft ein Gehäuse für eine The invention relates to a housing for a
Strömungsmaschine, wobei das Gehäuse ein erstes Teil und ein zweites Teil umfasst.  Turbomachine, wherein the housing comprises a first part and a second part.
Unter einer Strömungsmaschine wird beispielsweise eine Dampf¬ turbine verstanden. Eine Dampfturbine weist üblicher Weise einen drehbar gelagerten Rotor und ein Gehäuse, das um den Rotor angeordnet ist auf. Zwischen dem Rotor und dem Innen- gehäuse ist ein Strömungskanal ausgebildet. Das Gehäuse in einer Dampfturbine muss mehrere Funktionen erfüllen können. Zum einen werden die Leitschaufeln im Strömungskanal am Gehäuse angeordnet und zum zweiten muss das Innengehäuse den Druck und den Temperaturen des Strömungsmediums für alle Last- und besondere Betriebsfälle standhalten. Bei einerUnder a flow machine, a steam turbine ¬ is meant, for example. A steam turbine conventionally includes a rotatably mounted rotor and a housing disposed about the rotor. Between the rotor and the inner housing, a flow channel is formed. The housing in a steam turbine must be able to fulfill several functions. On the one hand, the guide vanes are arranged in the flow channel on the housing and, secondly, the inner housing must withstand the pressure and the temperatures of the flow medium for all load and special operating cases. At a
Dampfturbine ist das Strömungsmedium Dampf. Des Weiteren muss das Gehäuse derart ausgebildet sein, dass Zu- und Abführun¬ gen, die auch als Anzapfungen bezeichnet werden, möglich sind. Eine weitere Funktion, die ein Gehäuse erfüllen muss, ist die Möglichkeit, dass ein Wellenende durch das Gehäuse durchgeführt werden kann. Steam turbine is the flow medium steam. Furthermore, the housing must be designed such that supply and Abführun ¬ conditions, which are also referred to as taps, are possible. Another feature that a case must meet is the possibility of a shaft end passing through the case.
Bei den im Betrieb auftretenden hohen Spannungen, Drücken und Temperaturen ist es erforderlich, dass die Werkstoffe geeig- net ausgewählt werden sowie die Konstruktion derart gewählt ist, dass die mechanische Integrität und Funktionalität er¬ möglicht wird. Dafür ist es erforderlich, dass hochwertige Werkstoffe zum Einsatz kommen, insbesondere im Bereich der Einströmung und der ersten Leitschaufelnuten. In the case of occurring in operation high voltages, pressures, and temperatures, it is necessary that the materials are suited selected and the design is chosen such that the mechanical integrity and functionality it is ¬ made possible. This requires that high-quality materials are used, especially in the area of the inflow and the first Leitschaufelnuten.
Für die Anwendungen bei Frischdampftemperaturen von über 650°C, wie z.B. 700°C, sind Nickel-Basis-Legierungen geeignet, da sie den bei hohen Temperaturen auftretenden Belastun- gen standhalten. Allerdings ist die Verwendung einer solchen Nickel-Basis-Legierung mit neuen Herausforderungen verbunden. So sind die Kosten für Nickel-Basis-Legierungen vergleichsweise hoch und außerdem ist die Fertigbarkeit von Nickel- Basis-Legierungen, z.B. durch beschränkte Gussmöglichkeit be¬ grenzt. Dies führt dazu, dass die Verwendung von Nickel- Basis-Werkstoffen minimiert werden muss. Des Weiteren sind die Nickel-Basis-Werkstoffe schlechte Wärmeleiter. Dadurch sind die Temperaturgradienten über der Wandstärke so starr, dass Thermospannungen vergleichsweise hoch sind. Des Weiteren ist zu berücksichtigen, dass bei der Verwendung von Nickel- Basis-Werkstoffen die Temperaturdifferenz zwischen Ein- und Auslass der Dampfturbine steigt. For applications at live steam temperatures of more than 650 ° C, such as 700 ° C, nickel-based alloys are suitable, since they can be used at high temperatures. withstand. However, the use of such a nickel-based alloy is associated with new challenges. Thus, the cost of nickel-based alloys is comparatively high and also the manufacturability of nickel-based alloys, eg by limited casting possibility be ¬ limits. As a result, the use of nickel-based materials must be minimized. Furthermore, the nickel-based materials are poor heat conductors. As a result, the temperature gradients over the wall thickness are so rigid that thermal stresses are comparatively high. Furthermore, it must be taken into account that when using nickel-based materials, the temperature difference between the inlet and outlet of the steam turbine increases.
Es werden derzeit verschiedene Konzepte verfolgt, um eine Dampfturbine bereitzustellen, die für hohe Temperaturen und für hohe Drücke geeignet ist. So ist es bekannt, eine aus mehreren Teilen umfassende Innengehäusestruktur in eine Various concepts are currently being pursued to provide a steam turbine suitable for high temperatures and high pressures. So it is known, a comprehensive multi-part housing structure in a
Außengehäusestruktur einzuarbeiten gemäß dem Artikel Y. Exterior housing structure incorporate according to the article Y.
Tanaka et al . "Advanced Design of Mitsubishi Large Steam Turbines", Mitsubishi Heavy Industries, Power Gen Europe, 2003, Düsseldorf, May 06.-08., 2003. Tanaka et al. Mitsubishi Heavy Industries, Power Gen Europe, 2003, Dusseldorf, May 06.-08., 2003.
Es ist ebenso bekannt, ein Innengehäuse aus zwei Teilen aus¬ zubilden gemäß DE 10 2006 027 237 AI. It is also known, an inner housing of two parts from ¬ zubilden according to DE 10 2006 027 237 AI.
In der DE 342 1067 wird ebenfalls eine mehrkomponentige  In DE 342 1067 is also a multi-component
Innengehäusestruktur offenbart sowie in der DE 103 53 451 AI. Inner housing structure disclosed and in DE 103 53 451 AI.
Dampfturbine, die für hohe Drücke und hohe Dampftemperaturen ausgelegt sind, weisen in der Regel ein Innengehäuse und ein Außengehäuse auf. Das Außengehäuse ist in der Regel Steam turbines, which are designed for high pressures and high steam temperatures, usually have an inner housing and an outer housing. The outer casing is usually
zweiteilig ausgeführt und weist eine horizontale Teilfuge auf, wobei Ausführungsformen bekannt sind, in der das executed in two parts and has a horizontal parting line, wherein embodiments are known in the
Außengehäuse als Topfgehäuse ausgebildet ist. Das Outer housing is designed as a pot housing. The
Innengehäuse ist in der Regel zweiteilig ausgeführt und weist ebenso eine horizontale Teilfuge auf. Das Innengehäuse weist Einströmöffnungen auf, die ausreichend dimensioniert sein müssen, um den für die Leistungserzeugung notwendigen und über die Dampfventile zugeführten Dampfmassen bzw. Dampf olumenstrom aufzunehmen. Darüber hinaus müssen der Dampfmassen- und der Dampf olumenstrom gleichmäßig zu der Turbinenbeschaufelung geführt werden. Herkömmliche Inner housing is usually made in two parts and also has a horizontal parting line. The inner housing has inlet openings, which must be sufficiently dimensioned to the necessary for the power generation and the steam valves supplied steam masses or To absorb steam flow. In addition, the steam mass and the vapor flow must be performed evenly to the turbine blading. conventional
Dampfturbinen weisen ein Innengehäuse auf, das aus einem Oberteil und aus einem Unterteil besteht. Der Abstand der horizontalen Teilfuge zu der Dampfturbinenmitte wird durch den erforderlichen Querschnitt definiert, der für die Steam turbines have an inner housing, which consists of an upper part and a lower part. The distance of the horizontal parting line to the center of the steam turbine is defined by the required cross-section, which is used for the
Durchleitung des Dampfmassenstromes benötigt wird. Durch diese Definition sind auch die Erfordernisse für die Passage of the steam mass flow is needed. This definition also includes the requirements for the
Teilfugenschrauben definiert. Die Teilfugenschraubenauslegung muss dabei derart dimensioniert sein, dass die Schraubenkraft ausreicht, um die aus dem Dampfdruck und der Partial joint screws defined. The Teilfugenschraubenauslegung must be dimensioned so that the screw force is sufficient to those from the vapor pressure and the
Querschnittsfläche resultierende Druckkraft entgegenzuwirken und somit die Teilfugendichtigkeit zu gewährleisten. Je größer diese Durchtrittsfläche gewählt wird, umso größer müssen die Schrauben sein bzw. muss der Schraubenwerkstoff aus einem höherwertigen Material bestehen.  Counteract cross section surface resulting compressive force and thus to ensure Teilfugendichtigkeit. The larger this passage area is selected, the larger the screws must be or the screw material must consist of a higher quality material.
Bei einem Innengehäuse mit horizontaler Teilfuge erfolgt die Einströmung über zwei Einströmöffnungen im Unterteil. DieIn an inner housing with a horizontal parting line, the inflow takes place via two inlet openings in the lower part. The
Versorgung des Oberteils erfolgt über die Durchtrittsfläche im Bereich der horizontalen Teilfuge. Supply of the upper part via the passage area in the region of the horizontal parting line.
Die Dimensionierung der Teilfugenschrauben erfolgt über die Querschnittsfläche in der Teilfuge. Bei großen The dimensioning of the parting screw is done via the cross-sectional area in the parting line. For big ones
Querschnittsflächen müssen höherwertige Schraubenauslegungen eingesetzt werden.  Cross-sectional surfaces must be used higher-quality screw designs.
Wünschenswert wäre es, ein Innengehäusedesign zu haben, bei dem die Anforderungen an die Teilfugenschrauben geringer sind . It would be desirable to have an internal housing design in which the requirements for the parting screws are lower.
An dieser Stelle setzt die Erfindung an, deren Aufgabe es ist, ein Gehäuse anzugeben, bei dem geringer dimensionierte Teilfugenschrauben eingesetzt werden können. At this point, the invention begins, whose task is to provide a housing in which smaller dimensioned parting screws can be used.
Gelöst wird diese Aufgabe durch ein Gehäuse gemäß Anspruch 1. Vorteilhafte Weiterbildungen sind in den Unteransprüchen angegeben . This object is achieved by a housing according to claim 1. Advantageous developments are specified in the subclaims.
Die Erfindung geht von dem Aspekt aus, dass eine horizontale Teilfuge beim Innengehäuse entfallen kann und stattdessen eine vertikale Teilfuge eingesetzt wird. Die vertikale The invention is based on the aspect that a horizontal parting can be omitted in the inner housing and instead a vertical parting line is used. The vertical one
Teilfuge befindet sich somit in der 12- und 6Uhr-Position . Durch die vertikale Teilfuge und die damit verbundene Parting joint is thus in the 12 and 6 o'clock position. Through the vertical parting line and the associated
Beströmung des Einströmkanals kann die der Flow of the inflow channel may be that of
Schraubendimensionierung zu Grunde liegende Screw dimensioning underlying
Querschnittsfläche reduziert werden. Die Teilfugenschrauben können näher zur Turbinenmitte angeordnet werden, womit eine Reduzierung der für die Teilfugenschraubenauslegung  Cross-sectional area can be reduced. The part-joint screws can be arranged closer to the center of the turbine, thus reducing the size of the part-joint screw
dimensionierenden Druckflächen einhergehen. Ein Effekt davon ist, dass kleinere Schraubengrößen eingesetzt werden können. Des Weiteren kann ein minderwertigerer Schraubewerkstoff sowie kleinere Innengehäusegussstücke verwendet werden. Die führt insgesamt zu einer Kostenreduktion. Das erste Teil und/oder das zweite Teil weist accompanying dimensioning pressure surfaces. One effect of this is that smaller screw sizes can be used. Furthermore, an inferior screw material as well as smaller inner shell castings can be used. The overall leads to a cost reduction. The first part and / or the second part has
Einströmöffnungen auf, die vorteilhafter Weise im  Inlet openings, advantageously in the
Wesentlichen symmetrisch ausgeführt sind. Are designed substantially symmetrical.
Ein Ausführungsbeispiel der Erfindung wird nachfolgend anhand der Zeichnung beschrieben. Dies soll das Ausführungsbeispiel nicht maßstäblich darstellen, vielmehr ist die Zeichnung, in schematisierter und/oder leicht verzerrter Form ausgeführt. Im Hinblick auf Ergänzungen der aus der Zeichnung unmittelbar erkennbaren Lehren wird hier auf den einschlägigen Stand der Technik verwiesen. An embodiment of the invention will be described below with reference to the drawing. This is not intended to represent the embodiment to scale, but the drawing is executed in a schematized and / or slightly distorted form. With regard to additions to the teachings directly recognizable from the drawing reference is made here to the relevant prior art.
Im Einzelnen zeigt die Zeichnung: In detail, the drawing shows:
Figur 1 eine Schnittdarstellung durch eine Figure 1 is a sectional view through a
Strömungsmaschine. Die in Figur 1 dargestellte Dampfturbine 1 ist eine Flow machine. The steam turbine 1 shown in Figure 1 is a
Ausführungsform einer Strömungsmaschine. Die Dampfturbine 1 umfasst ein Außengehäuse 2 und ein Innengehäuse 3 auf. Embodiment of a turbomachine. The steam turbine 1 comprises an outer housing 2 and an inner housing 3.
Innerhalb des Innengehäuses 3 ist ein nicht näher Within the inner housing 3 is not closer
dargestellter Rotor um eine Rotationsachse 4 drehbar illustrated rotor about a rotation axis 4 rotatable
gelagert. Das Innengehäuse 3 umfasst ein erstes Teil 3a und ein zweites Teil 3b. Das erste Teil 3a und das zweite Teil 3b wird über eine vertikale Teilfuge 5 ausgebildet. Das erste Teil 3a und das zweite Teil 3b wird über nicht näher stored. The inner housing 3 comprises a first part 3a and a second part 3b. The first part 3a and the second part 3b is formed via a vertical parting line 5. The first part 3a and the second part 3b will not talk about
dargestellte Teilfugenschrauben an der vertikalen Teilfuge 5 zusammengehalten. Die vertikale Teilfuge 5 bezieht sich dabei auf eine horizontale Linie 6, die im Betrieb der natürlichen Horizontalen entspricht. Die vertikale Teilfuge 5 muss hierbei nicht exakt um 90° gegenüber der horizontalen Linie 6 gedreht sein. Vielmehr kann die vertikale Teilfuge in einem Winkelbereich von -10° bis +10° gegenüber der theoretisch exakten vertikalen Linie, die 90° gegenüber der horizontalen Linie 6 gedreht ist, ausgebildet sein. Das erste Teil 3a und das zweite Teil 3b weisen jeweils eine Einströmöffnung 7 auf, über die im Betrieb ein Dampf in einen nicht näher dargestellte Strömungskanal strömt. Das Partial joint screws shown held together on the vertical parting joint 5. The vertical parting line 5 refers to a horizontal line 6, which corresponds to the natural horizontal in operation. The vertical parting line 5 does not have to be rotated exactly 90 ° with respect to the horizontal line 6. Rather, the vertical parting line in an angular range of -10 ° to + 10 ° relative to the theoretically exact vertical line, which is rotated 90 ° relative to the horizontal line 6, may be formed. The first part 3a and the second part 3b each have an inflow opening 7, via which a steam flows in operation into a flow channel, not shown. The
Außengehäuse 2 weist eine horizontale Teilfuge 8 auf. Daher weist das Außengehäuse 2 ein Oberteil 2a und ein Unterteil 2b auf. Die Dampfturbine 1 kann im Hochdruckbereich oder im Mitteldruckbereich eingesetzt werden. Outer housing 2 has a horizontal parting line 8. Therefore, the outer case 2 has an upper part 2a and a lower part 2b. The steam turbine 1 can be used in the high pressure range or in the medium pressure range.

Claims

Patentansprüche claims
1. Gehäuse umfassend ein Innengehäuse (3, 3a, 3b) und ein um das Innengehäuse (3, 3a, 3b) angeordnetes A housing comprising an inner housing (3, 3a, 3b) and arranged around the inner housing (3, 3a, 3b)
Außengehäuse (2, 2a, 2b) für eine Strömungsmaschine, wobei das Innengehäuse (3, 3a, 3b) ein erstes Teil (3a) und ein zweites Teil (3b)umfasst,  Outer housing (2, 2a, 2b) for a turbomachine, wherein the inner housing (3, 3a, 3b) comprises a first part (3a) and a second part (3b),
wobei das Außengehäuse ein erstes Außengehäuseteile (2a) und ein zweites Außengehäuseteil (2b) aufweist, wobei zwischen dem ersten (2a) und zweiten (2b)  wherein the outer housing comprises a first outer housing parts (2a) and a second outer housing part (2b), wherein between the first (2a) and second (2b)
Außengehäuseteil eine horizontale Teilfuge (8)  Outer housing part a horizontal parting line (8)
ausgebildet ist,  is trained,
dadurch gekennzeichnet, dass  characterized in that
zwischen dem ersten Teil (3a) und dem zweiten Teil (3b) eine vertikale Teilfuge (5) ausgebildet ist.  between the first part (3a) and the second part (3b) is formed a vertical parting line (5).
2. Gehäuse nach Anspruch 1, 2. Housing according to claim 1,
wobei die vertikale Teilfuge (5) um 90° gegenüber der horizontalen Teilfuge (8) gedreht ist.  wherein the vertical parting line (5) is rotated by 90 ° relative to the horizontal parting line (8).
3. Gehäuse nach Anspruch 1 oder 2, 3. Housing according to claim 1 or 2,
wobei das erste Teil (3a) und/oder das zweite Teil (3b) Einströmöffnungen (7) aufweist.  wherein the first part (3a) and / or the second part (3b) has inflow openings (7).
4. Gehäuse nach Anspruch 1, 2 oder 3, 4. Housing according to claim 1, 2 or 3,
wobei das Innengehäuse (3, 3a, 3b) zum Aufnehmen eines um eine Rotationsachse (4) drehbar gelagerten Rotors ausgebildet ist.  wherein the inner housing (3, 3a, 3b) for receiving a about a rotational axis (4) rotatably mounted rotor is formed.
5. Gehäuse nach einem der vorhergehenden Ansprüche, 5. Housing according to one of the preceding claims,
wobei das erste Teil (3a) und das zweite Teil (3b) mittels Teilfugenschrauben miteinander verbunden sind.  wherein the first part (3a) and the second part (3b) are interconnected by means of partial joint screws.
EP10790396.5A 2009-12-08 2010-12-07 Internal casing for a steam turbine Not-in-force EP2510195B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10790396.5A EP2510195B1 (en) 2009-12-08 2010-12-07 Internal casing for a steam turbine

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP09015210A EP2333253A1 (en) 2009-12-08 2009-12-08 Internal casing for a turbo-machine
EP10790396.5A EP2510195B1 (en) 2009-12-08 2010-12-07 Internal casing for a steam turbine
PCT/EP2010/069010 WO2011069982A1 (en) 2009-12-08 2010-12-07 Inner housing for a flow machine

Publications (2)

Publication Number Publication Date
EP2510195A1 true EP2510195A1 (en) 2012-10-17
EP2510195B1 EP2510195B1 (en) 2016-03-23

Family

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Family Applications (2)

Application Number Title Priority Date Filing Date
EP09015210A Withdrawn EP2333253A1 (en) 2009-12-08 2009-12-08 Internal casing for a turbo-machine
EP10790396.5A Not-in-force EP2510195B1 (en) 2009-12-08 2010-12-07 Internal casing for a steam turbine

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP09015210A Withdrawn EP2333253A1 (en) 2009-12-08 2009-12-08 Internal casing for a turbo-machine

Country Status (4)

Country Link
EP (2) EP2333253A1 (en)
CN (1) CN102648335A (en)
PL (1) PL2510195T3 (en)
WO (1) WO2011069982A1 (en)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH125062A (en) * 1927-03-16 1928-03-16 Oerlikon Maschf High pressure steam or gas turbine.
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
KR20000005303A (en) * 1996-04-11 2000-01-25 칼 하인쯔 호르닝어 Thrust compensating process and device for turbomachines
US6609881B2 (en) * 2001-11-15 2003-08-26 General Electric Company Steam turbine inlet and methods of retrofitting
US6964554B2 (en) * 2003-03-31 2005-11-15 Siemens Westinghouse Power Corporation Drop-in nozzle block for steam turbine
DE10336978B3 (en) * 2003-08-12 2005-01-13 Mtu Friedrichshafen Gmbh Carrier housing for exhaust gas turbo-supercharger
DE10353451A1 (en) 2003-11-15 2005-06-16 Alstom Technology Ltd Steam turbine and method for producing such a steam turbine
JP2006016976A (en) * 2004-06-30 2006-01-19 Toshiba Corp Turbine nozzle support device and 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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2011069982A1 *

Also Published As

Publication number Publication date
CN102648335A (en) 2012-08-22
EP2333253A1 (en) 2011-06-15
WO2011069982A1 (en) 2011-06-16
PL2510195T3 (en) 2016-10-31
EP2510195B1 (en) 2016-03-23

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