EP2832959A1 - Housing, in particular outer housing for a low pressure steam turbine - Google Patents

Housing, in particular outer housing for a low pressure steam turbine Download PDF

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Publication number
EP2832959A1
EP2832959A1 EP13178867.1A EP13178867A EP2832959A1 EP 2832959 A1 EP2832959 A1 EP 2832959A1 EP 13178867 A EP13178867 A EP 13178867A EP 2832959 A1 EP2832959 A1 EP 2832959A1
Authority
EP
European Patent Office
Prior art keywords
housing
metal walls
stiffening means
sheet metal
steam turbine
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Withdrawn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
EP13178867.1A
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German (de)
French (fr)
Inventor
David Barkowski
Manuel Ettler
Ralf Hoffacker
Bora Kocdemir
Simon 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 EP13178867.1A priority Critical patent/EP2832959A1/en
Priority to CN201480038748.9A priority patent/CN105378233A/en
Priority to PCT/EP2014/065782 priority patent/WO2015014681A1/en
Priority to EP14747331.8A priority patent/EP2997238A1/en
Publication of EP2832959A1 publication Critical patent/EP2832959A1/en
Withdrawn legal-status Critical Current

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    • 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
    • F05D2250/00—Geometry
    • F05D2250/10—Two-dimensional
    • F05D2250/12—Two-dimensional rectangular
    • 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
    • F05D2250/00—Geometry
    • F05D2250/10—Two-dimensional
    • F05D2250/14—Two-dimensional elliptical
    • F05D2250/141—Two-dimensional elliptical circular

Definitions

  • the invention relates to a housing, in particular an outer housing for a low-pressure steam turbine, according to the preamble of claim 1.
  • An example of a housing is from the EP 0 575 642 A1 known.
  • the outer housing is designed here as welded constructions and consists of an upper part and a supporting lower part.
  • the supporting lower part is connected to the bottom of the capacitor. Together, these then form a closed space to the environment in which atmospheric pressure prevails.
  • the condenser pressure which usually moves in the two-digit millibar range, is present inside the outer housing, the full ambient pressure acts on the outer housing. Due to the design of the outer housing as a large-scale sheet metal construction, the problem arises that large forces act on this outer shell of large-scale sheet metal walls, and it comes to deformations of the same.
  • stiffeners are provided.
  • inner stiffening rods which are arranged in a kind of a truss structure used.
  • the object of the invention is to provide a housing which overcomes these disadvantages.
  • Pass wedges between the at least one annular stiffening means and the sheet metal walls allow that the outer dimensions of the at least one annular stiffening means do not have to correspond exactly to the default dimensions of the inner dimensions of the housing.
  • the stiffening rings can thus have a slightly smaller outer diameter and the remaining gaps between the annular stiffening means and the metal walls of the housing are then closed by the introduced into the columns pass wedges or other intermediate elements for closing the remaining column, so that the components then, for. B. can be joined together by welding.
  • the annular stiffening means may be provided in different vertical planes of the housing and welded to the inside of the metal walls of the housing.
  • the annular stiffening means are each arranged horizontally in the vertical planes, so that a plurality of annular stiffening means come to rest parallel to one another.
  • the effect according to the invention is still given even if the annular stiffening means are almost horizontal, that is to say are arranged with slight angular deviations from the horizontal, to each other in different vertical planes.
  • annular stiffening means are nearly circular, they support the sheet metal walls of the housing at the locations of the sheet metal wall surfaces where, owing to the large pressure difference, the greatest deformation is present, namely in the middle between two sheet metal wall edges.
  • annular stiffening means are oval, the support of the sheet metal walls takes place decentrally at points which lie closer to the sheet-metal wall edges. If such oval annular stiffening means are each rotated by 90 degrees in directly superimposed vertical planes, a support of the sheet metal walls and thus a rigidity at different points of the sheet metal walls can be achieved. The stiffness can be further improved when oval and nearly circular stiffeners alternate over the various vertical planes, thus supporting the sheet metal walls in each of the planes at different locations on the wall surface.
  • FIG. 1 1 is a plan view of a lower part 1 of the housing with a welded capacitor of a low-pressure steam turbine.
  • Large-scale lateral metal walls 2 on a rectangular - here square - base limit the volume of this base and form together with the upper part of the housing of the low-pressure steam turbine.
  • the four lateral sheet metal walls 2 are each at their edges with each other and welded to the floor panel.
  • the sheet metal walls 2 do not have sufficient inherent rigidity due to their large sheet metal structures themselves. Due to the large pressure difference between the environment and the coated volume, it can thus lead to denting, so that a safe operation of the low-pressure steam turbine is no longer guaranteed.
  • stiffening means R1 are provided for stiffening the large-area sheet-metal walls, but at the same time also have the simplest possible construction and thus a low cost and assembly outlay.
  • the annular stiffening means R1 then absorb the forces acting on the sheet metal walls due to the high pressure difference between the environment and the interior.
  • this annular stiffening means R1 is formed almost circular for a lower part 1 with a square base.
  • the forces resulting from the pressure difference can be taken up exactly at the points of the sheet metal walls 2, where they have their weakest point for a force , namely in the middle between two edges of a large sheet metal wall.
  • the outer dimensions of the annular stiffening means need not have accurate dimensions with respect to the internal dimensions of the volume enclosed by the sheet metal walls 2. Rather, at the points 3 not shown here fitting keys in possibly existing gaps between the at least one annular stiffening means R1 and the sheet metal walls 2 of the lower part 1 is introduced and then with the stiffening agent R1 be welded to the sheet metal walls 2. Ultimately, it is always important that the stiffening means interact with the sheet metal walls in such a way that impermissible denting of the sheet metal walls is prevented.
  • FIG. 2 a second embodiment of the annular stiffening means is shown.
  • the annular stiffening means R2 and R3 are formed here oval and rotated 90 degrees against each other introduced into two different vertical planes in the lower part 1 and welded to the sheet-metal walls 2. Due to their oval shape, the annular stiffening means R2 and R3 now support the sheet-metal walls 2 at points 3 'which lie closer to the edges. If these two vertical planes lie below one another without appreciable distance, the annular reinforcing means can additionally be welded together at the junctions 4 or joined together in any other way.
  • the present invention is not limited to the two previously described embodiments for a low-mounted capacitor. Rather, it is also applicable to any type of housing structure of steam turbines, which have a nearly rectangular cross section and which are loaded by external pressure, such as the adjacent to the lower part of the condenser housing or low pressure steam turbine outer casing or low pressure steam turbine outer casing for other types of installation than the outflow downward.
  • the basic idea is that, for housings that have a rectangular cross-section due to other constraints, an annular stiffener, which per se has the most favorable structure to withstand the given load, is used for stiffening.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)

Abstract

Die Erfindung betrifft ein Gehäuse, insbesondere ein Außengehäuse für eine Niederdruckdampfturbine, das in seiner Grundfläche einen im Wesentlichen rechteckigen Querschnitt aufweist und wobei seitliche Blechwände (2) mit ihren Flächen Teile des Gehäuses bilden. Zur Versteifung der Blechwände (2) ist zumindest ein ringförmiges Versteifungsmittel (R1,R2,R3) eingebracht und so ausgebildet ist, dass es die Blechwände an Punkten der Flächen (3,3') stütztThe invention relates to a housing, in particular an outer housing for a low-pressure steam turbine, which has a substantially rectangular cross-section in its base and wherein lateral sheet metal walls (2) form with their surfaces parts of the housing. For stiffening the sheet-metal walls (2) at least one annular stiffening means (R1, R2, R3) is introduced and is designed such that it supports the sheet-metal walls at points of the surfaces (3,3 ')

Description

Die Erfindung betrifft ein Gehäuse, insbesondere ein Außengehäuse für eine Niederdruckdampfturbine, gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a housing, in particular an outer housing for a low-pressure steam turbine, according to the preamble of claim 1.

Ein Beispiel für ein Gehäuse, speziell ein Außengehäuse für eine Niederdruck-Dampfturbine, ist aus der EP 0 575 642 A1 bekannt. Das Außengehäuse ist hier als Schweißkonstruktionen ausgeführt und besteht aus einem Oberteil und einem tragenden Unterteil. Das tragende Unterteil ist unten mit dem Kondensator verbunden. Zusammen bilden diese dann einen gegenüber der Umgebung, in der Atmosphärendruck vorherrscht, abgeschlossenen Raum. Da im Inneren des Außengehäuses aber der Kondensatordruck, der sich üblicherweise im zweistelligen Millibar-Bereich bewegt, vorliegt, wirkt der volle Umgebungsdruck auf das Außengehäuse. Aufgrund der Bauform des Außengehäuses als großflächige Blechkonstruktion ergibt sich so das Problem, dass große Kräfte auf diese äußere Hülle aus großflächigen Blechwänden wirken, und es so zu Verformungen derselben kommt. Zur Verbesserung der Steifigkeit des Außengehäuses sind daher entsprechende Versteifungen vorgesehen. Dazu kommen üblicherweise am Oberteil äußere Versteifungsrippen und im Unterteil, mit angeschweißtem Kondensator, innere Versteifungstangen, die in einer Art einer Fachwerkskonstruktion angeordnet sind, zum Einsatz. Gerade diese innere fachwerksartige Konstruktion der Versteifungsstangen hat aber den Nachteil, dass diese einen sehr hohen Montageaufwand erfordert und damit hohe Kosten verursacht.An example of a housing, especially an outer housing for a low pressure steam turbine, is from the EP 0 575 642 A1 known. The outer housing is designed here as welded constructions and consists of an upper part and a supporting lower part. The supporting lower part is connected to the bottom of the capacitor. Together, these then form a closed space to the environment in which atmospheric pressure prevails. However, since the condenser pressure, which usually moves in the two-digit millibar range, is present inside the outer housing, the full ambient pressure acts on the outer housing. Due to the design of the outer housing as a large-scale sheet metal construction, the problem arises that large forces act on this outer shell of large-scale sheet metal walls, and it comes to deformations of the same. To improve the rigidity of the outer housing therefore appropriate stiffeners are provided. In addition usually come on the upper part of outer stiffening ribs and in the lower part, with welded capacitor, inner stiffening rods, which are arranged in a kind of a truss structure used. However, it is precisely this inner framework-like construction of the stiffening rods that has the disadvantage that it requires a very high installation effort and thus causes high costs.

Aufgabe der Erfindung ist es, ein Gehäuse bereitzustellen, das diese Nachteile überwindet.The object of the invention is to provide a housing which overcomes these disadvantages.

Diese Aufgabe wird mit dem Gehäuse, insbesondere einem Außengehäuse für eine Niederdruckdampfturbine mit den Merkmalen des Anspruchs 1 gelöst.This object is achieved with the housing, in particular an outer housing for a low-pressure steam turbine with the features of claim 1.

Dadurch, dass zur inneren Versteifung der Blechwände des Gehäuses und insbesondere des Unterteils des Außengehäuses einer Niederdruckdampfturbine nun anstelle der fachwerkartigen Konstruktion aus Versteifungsstangen zumindest ein ringförmiges Versteifungsmittel zur Versteifung der Blechwände in das Gehäuse eingebracht ist und so ausgebildet ist, dass es die Blechwände an Punkten der Flächen gezielt stützt, kann bei gleichbleibender Versteifungscharakteristik der Komplexitätsgrad der Versteifung verringert werden. Insgesamt ergibt sich so eine einfachere, schnellere und damit kostengünstigere Fertigung und Montage des Gehäuses.The fact that at least one annular stiffening means for stiffening the sheet metal walls is introduced into the housing for internal stiffening of the metal walls of the housing and in particular the lower part of the outer housing of a low-pressure steam turbine instead of the truss-like construction of stiffening rods and is designed so that it the sheet metal walls at points of Supporting surfaces targeted, the degree of complexity of the stiffening can be reduced with the same stiffening characteristics. Overall, this results in a simpler, faster and thus more cost-effective production and installation of the housing.

Passkeile zwischen dem zumindest einen ringförmigen Versteifungsmittel und den Blechwänden erlauben, dass die Außenabmessungen des zumindest einen ringförmigen Versteifungsmittels nicht exakt den Ausfallmaßen der Innenabmessungen des Gehäuses entsprechen müssen. Die Versteifungsringe können so einen etwas kleineren Außendurchmesser aufweisen und die verbleibenden Spalte zwischen ringförmigem Versteifungsmittel und den Blechwänden des Gehäuses werden dann durch die in die Spalten eingebrachten Passkeile oder andere Zwischenelemente zum Schließen der verbleibenden Spalte geschlossen, so dass die Bauteile anschließend, z. B. durch schweißen miteinander verbunden werden können.Pass wedges between the at least one annular stiffening means and the sheet metal walls allow that the outer dimensions of the at least one annular stiffening means do not have to correspond exactly to the default dimensions of the inner dimensions of the housing. The stiffening rings can thus have a slightly smaller outer diameter and the remaining gaps between the annular stiffening means and the metal walls of the housing are then closed by the introduced into the columns pass wedges or other intermediate elements for closing the remaining column, so that the components then, for. B. can be joined together by welding.

Je nach geforderter Steifigkeit können die ringförmigen Versteifungsmittel in verschiedenen vertikalen Ebenen des Gehäuses vorgesehen und mit der Innenseite der Blechwände des Gehäuses verschweißt sein. Vorzugsweise sind die ringförmigen Versteifungsmittel dabei in den vertikalen Ebenen jeweils horizontal angeordnet, so dass mehrere ringförmige Versteifungsmittel parallel zueinander zum Liegen kommen. Die erfindungsgemäße Wirkung ist aber auch dann noch gegeben, wenn die ringförmigen Versteifungsmittel nahezu horizontal, das heißt mit geringen Winkelabweichungen aus der Horizontalen heraus, zueinander in verschiedenen vertikalen Ebenen angeordnet sind.Depending on the required rigidity, the annular stiffening means may be provided in different vertical planes of the housing and welded to the inside of the metal walls of the housing. Preferably, the annular stiffening means are each arranged horizontally in the vertical planes, so that a plurality of annular stiffening means come to rest parallel to one another. However, the effect according to the invention is still given even if the annular stiffening means are almost horizontal, that is to say are arranged with slight angular deviations from the horizontal, to each other in different vertical planes.

Sind die ringförmigen Versteifungsmittel nahezu kreisrund, stützen sie die Blechwände des Gehäuses an den Stellen der Blechwandflächen an denen aufgrund des großen Druckunterschieds die größte Verformung vorliegt, nämlich in der Mitte zwischen jeweils zwei Blechwandkanten.If the annular stiffening means are nearly circular, they support the sheet metal walls of the housing at the locations of the sheet metal wall surfaces where, owing to the large pressure difference, the greatest deformation is present, namely in the middle between two sheet metal wall edges.

Sind die ringförmigen Versteifungsmittel oval, erfolgt die Stützung der Blechwände dezentral an Stellen, die näher an den Blechwandkanten liegen. Werden in direkt übereinander liegenden vertikalen Ebenen solche ovalen ringförmigen Versteifungsmittel jeweils um 90 Grad gegeneinander verdreht angeordnet, kann eine Stützung der Blechwänden und damit eine Steifigkeit an verschiedenen Stellen der Blechwände erreicht werden. Die Steifigkeit kann noch weiter verbessert werden, wenn sich ovale und nahezu kreisrunde Versteifungsmittel über die verschiedenen vertikalen Ebenen abwechseln und so die Blechwände in jeder der Ebenen an verschiedenen Stellen der Wandfläche stützen.If the annular stiffening means are oval, the support of the sheet metal walls takes place decentrally at points which lie closer to the sheet-metal wall edges. If such oval annular stiffening means are each rotated by 90 degrees in directly superimposed vertical planes, a support of the sheet metal walls and thus a rigidity at different points of the sheet metal walls can be achieved. The stiffness can be further improved when oval and nearly circular stiffeners alternate over the various vertical planes, thus supporting the sheet metal walls in each of the planes at different locations on the wall surface.

Die Erfindung soll nun anhand der nachfolgenden Figuren beispielhaft erläutert werden. Es zeigen:

FIG 1
schematisch ein erstes Ausführungsbeispiel mit nahezu kreisrundem Versteifungsring,
FIG 2
schematisch ein zweites Ausführungsbeispiel mit ovalen Versteifungsringen.
The invention will now be explained by way of example with reference to the following figures. Show it:
FIG. 1
schematically a first embodiment with almost circular stiffening ring,
FIG. 2
schematically a second embodiment with oval stiffening rings.

In FIG 1 dargestellt ist eine Draufsicht auf ein Unterteil 1 des Gehäuses mit angeschweißtem Kondensator einer Niederdruckdampfturbine. Großflächige seitliche Blechwände 2 auf einer rechteckigen - hier quadratischen - Grundfläche begrenzen das Volumen dieses Unterteils und bilden zusammen mit dem Oberteil das Gehäuse der Niederdruckdampfturbine. Die vier seitlichen Blechwände 2 sind jeweils an ihren Kanten miteinander und mit dem Bodenblech verschweißt. Die Blechwände 2 weisen aufgrund ihrer großflächigen Blechkonstruktionen selbst keine ausreichende inhärente Steifigkeit auf. Aufgrund des großen Druckunterschieds zwischen Umgebung und ummantelten Volumen kann es somit zu Einbeulungen kommen, so dass ein sicherer Betrieb der Niederdruckdampfturbine nicht mehr gewährleistet ist.In FIG. 1 1 is a plan view of a lower part 1 of the housing with a welded capacitor of a low-pressure steam turbine. Large-scale lateral metal walls 2 on a rectangular - here square - base limit the volume of this base and form together with the upper part of the housing of the low-pressure steam turbine. The four lateral sheet metal walls 2 are each at their edges with each other and welded to the floor panel. The sheet metal walls 2 do not have sufficient inherent rigidity due to their large sheet metal structures themselves. Due to the large pressure difference between the environment and the coated volume, it can thus lead to denting, so that a safe operation of the low-pressure steam turbine is no longer guaranteed.

Erfindungsgemäß sind deshalb zur Versteifung der großflächigen Blechwände ringförmige Versteifungsmittel R1 vorgesehen, die gleichzeitig aber auch einen möglichst einfachen Aufbau und damit einen geringen Kosten- und Montageaufwand aufweisen. Die ringförmigen Versteifungsmittel R1 nehmen dann die Kräfte auf, die aufgrund des hohen Druckunterschieds zwischen Umgebung und Innerem auf die Blechwände wirken. In dem in FIG 1 dargestellten Ausführungsbeispiel ist für ein Unterteil 1 mit quadratischer Grundfläche dieses ringförmige Versteifungsmittel R1 nahezu kreisrund ausgebildet. Wird es zudem so bemessen, dass es nach dem Einbringen in das Unterteil 1 die Blechwände 2 an den Stellen 3 stützt, können die aufgrund des Druckunterschieds entstehenden Kräfte genau an den Punkten der Blechwände 2 aufgenommen werden, wo diese für eine Krafteinwirkung ihren schwächsten Punkt aufweisen, nämlich in der Mitte zwischen zwei Kanten einer großflächigen Blechwand. Je nach Höhe des Unterteils 1 kann es vorteilhaft sein, mehrere solcher ringförmigen Versteifungsmittel R1 in mehreren vertikalen und voneinander beabstandeten Ebenen übereinander anzuordnen und an den Stellen 3 mit den Blechwänden 2 zu verschweißen.According to the invention, therefore, stiffening means R1 are provided for stiffening the large-area sheet-metal walls, but at the same time also have the simplest possible construction and thus a low cost and assembly outlay. The annular stiffening means R1 then absorb the forces acting on the sheet metal walls due to the high pressure difference between the environment and the interior. In the in FIG. 1 illustrated embodiment, this annular stiffening means R1 is formed almost circular for a lower part 1 with a square base. If it is also dimensioned so that it supports the sheet metal walls 2 at the points 3 after introduction into the lower part 1, the forces resulting from the pressure difference can be taken up exactly at the points of the sheet metal walls 2, where they have their weakest point for a force , namely in the middle between two edges of a large sheet metal wall. Depending on the height of the lower part 1, it may be advantageous to arrange a plurality of such annular stiffening means R1 in several vertical and spaced planes one above the other and to weld at the points 3 with the sheet metal walls 2.

Vorzugsweise müssen die Außenabmessungen der ringförmigen Versteifungsmittel aber keine passgenauen Maße in Bezug auf die Innenabmessungen des durch die Blechwände 2 eingeschlossenen Volumens aufweisen. Vielmehr können an den Stellen 3 hier nicht näher dargestellte Passkeile in möglicherweise vorhandenen Spalten zwischen dem zumindest einen ringförmigen Versteifungsmittel R1 und den Blechwänden 2 des Unterteils 1 eingebracht und anschließend mit dem Versteifungsmittel R1 mit den Blechwänden 2 verschweißt werden. Wichtig ist letztendlich immer nur, dass die Versteifungsmittel so mit den Blechwänden zusammenwirken, dass ein unzulässiges Einbeulen der Blechwände verhindert wird.Preferably, however, the outer dimensions of the annular stiffening means need not have accurate dimensions with respect to the internal dimensions of the volume enclosed by the sheet metal walls 2. Rather, at the points 3 not shown here fitting keys in possibly existing gaps between the at least one annular stiffening means R1 and the sheet metal walls 2 of the lower part 1 is introduced and then with the stiffening agent R1 be welded to the sheet metal walls 2. Ultimately, it is always important that the stiffening means interact with the sheet metal walls in such a way that impermissible denting of the sheet metal walls is prevented.

In FIG 2 ist eine zweite Ausführungsform der ringförmigen Versteifungsmittel dargestellt. Die ringförmigen Versteifungsmittel R2 und R3 sind hier oval ausgebildet und um 90 Grad gegeneinander verdreht in zwei verschiedene vertikale Ebenen in das Unterteil 1 eingebracht und mit den Blechwänden 2 verschweißt. Die ringförmigen Versteifungsmittel R2 und R3 stützen aufgrund ihrer ovalen Form die Blechwände 2 jetzt an Stellen 3', die näher an den Kanten liegen. Liegen diese beiden vertikalen Ebenen ohne nennenswerten Abstand untereinander, können die ringförmigen Versteifungsmittel zusätzlich an den Knotenpunkten 4 miteinander verschweißt oder auf jede andere Art miteinander verbunden werden.In FIG. 2 a second embodiment of the annular stiffening means is shown. The annular stiffening means R2 and R3 are formed here oval and rotated 90 degrees against each other introduced into two different vertical planes in the lower part 1 and welded to the sheet-metal walls 2. Due to their oval shape, the annular stiffening means R2 and R3 now support the sheet-metal walls 2 at points 3 'which lie closer to the edges. If these two vertical planes lie below one another without appreciable distance, the annular reinforcing means can additionally be welded together at the junctions 4 or joined together in any other way.

Die vorliegende Erfindung ist dabei nicht auf die zwei zuvor beschriebenen Ausführungsformen für einen tief aufgestellten Kondensator beschränkt. Vielmehr ist sie auch auf jede Art von Gehäusestruktur von Dampfturbinen anwendbar, die einen nahezu rechteckigen Querschnitt haben und die durch äußeren Überdruck belastet sind, wie zum Beispiel auch das an dem Unterteil angrenzende Kondensatorgehäuse oder Niederdruckdampfturbinen Außengehäuse oder auch Niederdruckdampfturbinen Außengehäuse für andere Aufstellungsarten als der Abströmung nach unten. Die grundlegende Idee ist, dass man für Gehäuse die aufgrund anderer Zwänge einen rechteckigen Querschnitt haben, ein ringförmiges Versteifungsmittel, das per se die günstigste Struktur aufweist um der gegebenen Belastung standzuhalten, zur Versteifung nutzt.The present invention is not limited to the two previously described embodiments for a low-mounted capacitor. Rather, it is also applicable to any type of housing structure of steam turbines, which have a nearly rectangular cross section and which are loaded by external pressure, such as the adjacent to the lower part of the condenser housing or low pressure steam turbine outer casing or low pressure steam turbine outer casing for other types of installation than the outflow downward. The basic idea is that, for housings that have a rectangular cross-section due to other constraints, an annular stiffener, which per se has the most favorable structure to withstand the given load, is used for stiffening.

Claims (7)

Gehäuse, insbesondere ein Außengehäuse für eine Niederdruckdampfturbine, das in seiner Grundfläche einen im Wesentlichen rechteckigen Querschnitt aufweist und wobei seitliche Blechwände (2) mit ihren Flächen Teile des Gehäuses bilden dadurch gekennzeichnet, dass zur Versteifung der Blechwände (2) zumindest ein ringförmiges Versteifungsmittel (R1,R2,R3) eingebracht und so ausgebildet ist, dass es die Blechwände an Punkten der Flächen (3,3') stützt.Housing, in particular an outer housing for a low-pressure steam turbine having a substantially rectangular cross-section in its base and lateral sheet metal walls (2) form parts of the housing with their surfaces characterized in that for stiffening the sheet metal walls (2) at least one annular stiffening means (R1 , R2, R3) and is formed so that it supports the metal walls at points of the surfaces (3,3 '). Gehäuse nach Anspruch 1,
dadurch gekennzeichnet, dass das Gehäuse ein Unterteil (1) eines Außengehäuses einer Niederdruckdampfturbine ist und zur Versteifung der Blechwände (2) des Unterteils (1) zumindest ein ringförmiges Versteifungsmittel (R1,R2,R3) in das Unterteil (1) eingebracht und so ausgebildet ist, dass es die Blechwände an Punkten der Flächen (3,3') stützt.Housing according to claim 1,
characterized in that the housing is a lower part (1) of an outer casing of a low-pressure steam turbine and for stiffening the sheet metal walls (2) of the lower part (1) at least one annular stiffening means (R1, R2, R3) introduced into the lower part (1) and formed is that it supports the metal walls at points of the surfaces (3,3 '). Gehäuse nach Anspruch 1 oder 2,
dadurch gekennzeichnet, dass Passkeile zwischen dem zumindest einen ringförmigen Versteifungsmittel (R1,R2,R3) und den Blechwänden (2) vorgesehen sind.Housing according to claim 1 or 2,
characterized in that fitting wedges between the at least one annular stiffening means (R1, R2, R3) and the sheet-metal walls (2) are provided. Gehäuse nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet, dass die ringförmigen Versteifungsmittel (R1,R2,R3) in verschiedenen vertikalen Ebenen des Gehäuses vorgesehen sind.Housing according to one of claims 1 to 3,
characterized in that the annular stiffening means (R1, R2, R3) are provided in different vertical planes of the housing. Gehäuse nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet, dass die ringförmigen Versteifungsmittel (R1) nahezu kreisrund sind.Housing according to one of claims 1 to 4,
characterized in that the annular stiffening means (R1) are nearly circular. Gehäuse nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet, dass die ringförmigen Versteifungsmittel (R2,R3) oval sind.Housing according to one of claims 1 to 4,
characterized in that the annular stiffening means (R2, R3) are oval. Gehäuse nach Anspruch 4,
dadurch gekennzeichnet, dass die ringförmigen Versteifungsmittel (R1,R2,R3) in verschiedenen vertikalen Ebenen rund oder oval sind.Housing according to claim 4,
characterized in that the annular stiffening means (R1, R2, R3) are round or oval in different vertical planes.
EP13178867.1A 2013-08-01 2013-08-01 Housing, in particular outer housing for a low pressure steam turbine Withdrawn EP2832959A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP13178867.1A EP2832959A1 (en) 2013-08-01 2013-08-01 Housing, in particular outer housing for a low pressure steam turbine
CN201480038748.9A CN105378233A (en) 2013-08-01 2014-07-23 Housing, in particular outer housing for low-pressure steam turbine
PCT/EP2014/065782 WO2015014681A1 (en) 2013-08-01 2014-07-23 Housing, in particular outer housing for a low-pressure steam turbine
EP14747331.8A EP2997238A1 (en) 2013-08-01 2014-07-23 Housing, in particular outer housing for a low-pressure steam turbine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP13178867.1A EP2832959A1 (en) 2013-08-01 2013-08-01 Housing, in particular outer housing for a low pressure steam turbine

Publications (1)

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EP2832959A1 true EP2832959A1 (en) 2015-02-04

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EP13178867.1A Withdrawn EP2832959A1 (en) 2013-08-01 2013-08-01 Housing, in particular outer housing for a low pressure steam turbine
EP14747331.8A Withdrawn EP2997238A1 (en) 2013-08-01 2014-07-23 Housing, in particular outer housing for a low-pressure steam turbine

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Application Number Title Priority Date Filing Date
EP14747331.8A Withdrawn EP2997238A1 (en) 2013-08-01 2014-07-23 Housing, in particular outer housing for a low-pressure steam turbine

Country Status (3)

Country Link
EP (2) EP2832959A1 (en)
CN (1) CN105378233A (en)
WO (1) WO2015014681A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018201488A1 (en) 2018-01-31 2019-08-01 Siemens Aktiengesellschaft Electrical device with pressing plates for clamping a magnetizable core

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0575642A1 (en) * 1992-06-20 1993-12-29 Asea Brown Boveri Ag Outer casing of a low pressure steam turbine
EP0751283A2 (en) * 1995-06-30 1997-01-02 ABB Management AG Support for a low pressure steam turbine
US20130177443A1 (en) * 2011-01-19 2013-07-11 Makoto Kondo Turbine external compartment, frame for turbine external compartment, and method of constructing frame for turbine external compartment

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3892500A (en) * 1974-07-10 1975-07-01 Westinghouse Electric Corp Adjustable axial positioning device
JP3595438B2 (en) * 1997-09-17 2004-12-02 三菱重工業株式会社 Low pressure steam turbine interior cabin support structure
US7785068B2 (en) * 2007-05-17 2010-08-31 General Electric Company Steam turbine exhaust hood and method of fabricating the same
CN201714422U (en) * 2010-07-02 2011-01-19 王宽喜 Emergency escape capsule

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0575642A1 (en) * 1992-06-20 1993-12-29 Asea Brown Boveri Ag Outer casing of a low pressure steam turbine
EP0751283A2 (en) * 1995-06-30 1997-01-02 ABB Management AG Support for a low pressure steam turbine
US20130177443A1 (en) * 2011-01-19 2013-07-11 Makoto Kondo Turbine external compartment, frame for turbine external compartment, and method of constructing frame for turbine external compartment

Also Published As

Publication number Publication date
WO2015014681A1 (en) 2015-02-05
EP2997238A1 (en) 2016-03-23
CN105378233A (en) 2016-03-02

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