EP1933038A1 - Casing for turbomachine - Google Patents
Casing for turbomachine Download PDFInfo
- Publication number
- EP1933038A1 EP1933038A1 EP06025625A EP06025625A EP1933038A1 EP 1933038 A1 EP1933038 A1 EP 1933038A1 EP 06025625 A EP06025625 A EP 06025625A EP 06025625 A EP06025625 A EP 06025625A EP 1933038 A1 EP1933038 A1 EP 1933038A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- housing
- projection
- shaft
- lid
- cover
- 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
Links
- 238000007789 sealing Methods 0.000 claims description 31
- 238000000034 method Methods 0.000 claims description 6
- 238000009825 accumulation Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/624—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/02—Surge control
- F04D27/0246—Surge control by varying geometry within the pumps, e.g. by adjusting vanes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/083—Sealings especially adapted for elastic fluid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/4213—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps suction ports
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/46—Fluid-guiding means, e.g. diffusers adjustable
- F04D29/462—Fluid-guiding means, e.g. diffusers adjustable especially adapted for elastic fluid pumps
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- 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
- F05D2250/50—Inlet or outlet
- F05D2250/51—Inlet
Definitions
- the invention relates to a housing with a longitudinal axis, in particular a housing of a turbomachine, in particular a turbocompressor, comprising at least two at least partially semi-cylindrical housing parts with parallel to the longitudinal axis extending cylinder axis and at least one end-side cover which extends transversely to the longitudinal axis and surface which has an opening through which a shaft extends out of the housing.
- the invention relates to a method for mounting an aforementioned housing.
- the pressure-tight housings are frequently under such a high load that, as a consequence of the stresses, undesired deformations can even restrict the operating ranges.
- a housing can not be perfectly rotationally symmetrical, so that the temperature profiles in the material and the high pressures lead to asymmetrical deformations.
- Instationary but also stationary temperature influences can in this case lead to originally round cross-sectional contours having an oval or eirige shape.
- condensate sometimes collects in the lower half of the housing as a result of gravity, so that high thermal stresses result as a result of the cooling.
- sealing elements of the lid can be damaged when lowering the upper housing part.
- the problems described are of increasing difficulty with increasing size.
- the invention has set itself the task of creating a housing which has a high degree of symmetry even at high thermal and mechanical loads or deformations.
- the cover has at least one first projection extending radially outward from the longitudinal axis, which in the mounted state is supported by the housing interior on at least one second projection extending radially inwards to the longitudinal axis.
- the solution according to the invention of the cover which is supported on the inside of the housing by means of a larger outside diameter has the decisive advantage that overly large fastening elements of the cover, in particular in the region of the parting line of the housing, can be dispensed with.
- the lid only has to be fixed in its operating position and, depending on the internal pressure of the housing, lies in a sealing manner against the axial surface of the smaller diameter of the opening of the housing.
- An additional sealing function is particularly ensured when the first projection extends in the circumferential direction over the entire circumference of the lid and the additional second projection extends in the circumferential direction along the entire circumference of the opening formed by the two housing halves.
- the housing is a component of a turbo set, in particular turbocompressor, it makes sense to lead out the shaft if the cover has a preferably centric arrangement Has opening from which protrudes a shaft of the turbo set.
- This shaft may be associated with driving or powered other equipment modules.
- the cover is a carrier of a shaft seal and / or a shaft bearing.
- the lid may also be a carrier of aTECHsleitapparates for a compressor.
- Both shaft seal, concernssleitapparat and the shaft bearing can be formed here undivided in the circumferential direction, which in particular in terms of further saved fasteners, especially in the joint area, brings benefits and always favors a high degree of symmetry even with deformation.
- an undivided bearing for example, an extension of the selection usable magnetic bearing, for example, encapsulated magnetic bearings can be used.
- the lid is fixed to the housing or the two housing halves, so that it is held in its end position.
- no screwing in the usual sense exists.
- both the first projection and the second projection may each be formed as a sealing surface or as a seal carrier.
- first projection on the in the direction of the second Projecting side facing has a shoulder which separates a first sealing surface of a radially outer third sealing surface and the second projection to each corresponding to the first sealing surface and the third sealing surface has a second and fourth sealing surfaces.
- This paragraph can be advantageously designed as a gradation, wherein the larger outer diameter is disposed further inside the housing than the smaller outer diameter. This gradation is correspondingly reversed at the opening of the housing, which closes the lid to provide.
- the two housing parts are first fastened to each other before the fixation of the lid, preferably by means of partial joint screws.
- the lid is simultaneously formed as a carrier element for a shaft seal and / or a shaft bearing and / or a constraintsleitapparat.
- FIG. 1 shows in a plan view a part of a first housing part 1 or lower housing part of a housing 2 on which a second, not shown, housing part or housing upper part can be placed and fastened to this.
- the housing 2 has a total of a cylindrical shape, wherein the first housing part 1 and the second housing part are each formed semi-cylindrical.
- the housing 2 is accordingly cylindrical in shape with a longitudinal axis 70 which extends parallel to a machine axis 71.
- the housing 2 is separable in a part-joint plane by means of a parting line 3, so that the first housing part 1 and the second housing part can be removed from each other.
- the housing 2 has a continuous recess 8, which can be closed by means of a cover 6, which cover has an opening 5, through which a shaft 7 is led out of the housing 2 for the transmission of forces or torques.
- the opening 5 of the cover 6 for taking out the shaft 7 has a seal between the standing cover 6 and the rotating shaft 7 by means of a shaft seal 9 (oil separation 9a, gas seal 9b, clean gas maze 9c), which is fixed to the lid.
- a bearing 10 for supporting the shaft 7 and an inlet guide 11 of the compressor for flow guidance are also supported on the lid 6 and fixed.
- the cover 6 is provided on the radially outer periphery with a circumferential first projection 12 which is supported on an opposite second projection 13 of the recess 8 of the housing 2 against the internal overpressure in the housing 2.
- the first projection 12 has a circumferentially extending first sealing surface 31 which cooperates with a circumferentially extending second sealing surface 32 on the second projection 13 on the housing 2.
- Radially offset inwardly and axially outwardly from the first sealing surface 31 is a third sealing surface 33 on the first projection 12 of the lid 6, which is separated from the first sealing surface 31 by means of a shoulder 16 in the manner of a step 17 and with a opposite fourth sealing surface 34 on the second projection 13 of the housing 2 cooperates.
- the first sealing surface 31 acts together with the second sealing surface 32 together as a metallic seal, while the radially slightly inwardly and axially slightly offset to the outside of the housing 2 third sealing surface 33 is provided with a groove 20 which carries an O-ring seal 21 which seals against the fourth sealing surface 34 of the housing 2.
- the cover carries during operation the bearing 10, the shaft seal 9 and theTECHsleitapparat 11, during assembly of the cover 6 to the shaft 7 but the shaft seal and the bearing are replaced by mounting inserts that center with little play, the shaft to the lid.
- the inlet guide is attached to the cover prior to shaft mounting. At this also a mounting insert is attached. Only by the method according to the invention, a one-piece compactsleitapparat can be used.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
Die Erfindung beschäftigt sich mit einem Gehäuse mit einer Längsachse, insbesondere einem Gehäuse einer Turbomaschine, insbesondere eines Turbokompressors, umfassend mindestens zwei zumindest zum Teil halbzylindrische Gehäuseteile mit sich parallel zur Längsachse erstreckender Zylinderachse und mindestens einem stirnseitigen Deckel, welcher sich quer zur Längsachse flächig erstreckt und der eine Öffnung aufweist, durch welche sich eine Welle hindurch aus dem Gehäuse heraus erstreckt. Daneben betrifft die Erfindung ein Verfahren zur Montage eines vorgenannten Gehäuses.The invention relates to a housing with a longitudinal axis, in particular a housing of a turbomachine, in particular a turbocompressor, comprising at least two at least partially semi-cylindrical housing parts with parallel to the longitudinal axis extending cylinder axis and at least one end-side cover which extends transversely to the longitudinal axis and surface which has an opening through which a shaft extends out of the housing. In addition, the invention relates to a method for mounting an aforementioned housing.
Insbesondere im Bereich von Turbomaschinen, beispielsweise Turbokompressoren stehen die druckdichten Gehäuse häufig unter einer derart hohen Belastung, dass in Folge der Spannungen unerwünschte Verformungen sogar die Betriebsbereiche einschränken können. In Folge der konstruktiven Zwänge kann ein derartiges Gehäuse nicht vollkommen rotationssymmetrisch ausgebildet werden, so dass die Temperaturprofile in dem Material und die hohen Drücke zu unsymmetrischen Verformungen führen. Instationäre aber auch stationäre Temperatureinflüsse können hierbei dazu führen, dass ursprünglich runde Querschnittskonturen eine ovale oder eirige Form aufweisen. Bei Dampfturbinen beispielsweise sammelt sich in Folge der Gravitation in der unteren Gehäusehälfte bisweilen Kondensat, so dass in Folge der Abkühlung hohe Thermospannungen resultieren. Große oder kompliziert aufgebaute Maschinen besitzen außerdem häufig insbesondere aufgrund von Montageerfordernissen eine horizontale Teilfuge, die hinsichtlich der vorbeschriebenen Problematik einen Schwachpunkt darstellt. Einerseits bildet die Teilfuge in Folge der zwingend notwendigen Verbindungstechnik, die regelmäßig als Teilfugenverschraubung ausgebildet ist, eine für den insbesondere thermisch verursachten Spannungsverlauf ungünstige Materialanhäufung und andererseits besitzt die Teilfuge regelmäßig an den Stirnseiten des Gehäuses eine Unterbrechung, damit aus einer Öffnung des Gehäuses eine Welle des Turbosatzes herausgeführt werden kann. Diese Herausführungen weisen in der Regel einen Deckel auf, der an dem Gehäuse angebracht ist und mit einer entsprechenden Öffnung für die Welle versehen ist. Die Materialanhäufung verschlimmert die Inhomogenität der Temperaturverläufe und insbesondere der Spannungsverläufe, was im Bereich der Gehäuseöffnung zum Herausführen der Welle bzw. im Dichtbereich des Deckels kritische Ausmaße annimmt, da hier zusätzlich noch Dichtungen und Lager angeordnet sind. Dieses zusätzliche Bauelement muss ebenfalls hinreichend dimensioniert mit dem Gehäuse verbunden werden, so dass die Verbindungstechnik der Teilfuge und diejenige des zusätzlichen Bauelements sich gegenseitig beeinflussen.Particularly in the field of turbomachines, such as turbocompressors, the pressure-tight housings are frequently under such a high load that, as a consequence of the stresses, undesired deformations can even restrict the operating ranges. As a result of the design constraints, such a housing can not be perfectly rotationally symmetrical, so that the temperature profiles in the material and the high pressures lead to asymmetrical deformations. Instationary but also stationary temperature influences can in this case lead to originally round cross-sectional contours having an oval or eirige shape. In steam turbines, for example, condensate sometimes collects in the lower half of the housing as a result of gravity, so that high thermal stresses result as a result of the cooling. In addition, large or complex machines often have a horizontal parting line, in particular due to installation requirements, which is a weak point with regard to the problem described above. On the one hand forms the parting line as a result of the mandatory connection technology, which is regularly designed as Teilfugenverschraubung, an unfavorable for the particular thermally induced voltage curve accumulation of material and on the other hand has the parting line regularly to the End faces of the housing an interruption, so that from an opening of the housing, a shaft of the turbo set can be led out. These leads usually have a lid attached to the housing and provided with a corresponding opening for the shaft. The accumulation of material aggravates the inhomogeneity of the temperature profiles and in particular the voltage curves, which assumes critical dimensions in the region of the housing opening for guiding out the shaft or in the sealing region of the cover, since seals and bearings are additionally arranged here. This additional component must also be sufficiently dimensioned connected to the housing, so that the connection technology of the parting line and that of the additional component influence each other.
In diesem Zusammenhang ist es bereits bekannt, die Wellendichtung und das Lager ungeteilt - also ohne beispielsweise horizontale Teilfuge - auszubilden, so dass für diese Bauelemente im Bereich der Teilfuge keine zusätzlichen Verbindungselemente raumgreifend erforderlich sind.In this context, it is already known, the shaft seal and the bearing undivided - ie without, for example, horizontal parting line - form, so that no additional connecting elements are required for these components in the field of parting.
Die Konstruktion erfordert eine sorgfältige Montage, wobei die Welle gemeinsam mit dem in Umfangsrichtung einstückig ausgebildeten zusätzlichen Deckel (welcher im Wesentlichen ringförmig ist) in die untere Gehäusehälfte abgesenkt wird und anschließend die obere Gehäusehälfte des Gehäuses verschließend auf die untere Gehäusehälfte aufgesetzt wird. Diese zusätzlichen Bauelemente werden in der Art eines Deckels von außen mittels einer Verschraubung an dem Gehäuse druckdicht befestigt. Ein verbleibender Nachteil dieser Bauweise liegt in der Kollision der Deckelverschraubung mit der Teilfugenverschraubung für die beiden Gehäusehälften.The construction requires careful assembly, with the shaft, together with the circumferentially integral additional cover (which is substantially annular), lowered into the lower half of the housing, and then the upper half of the housing is sealed onto the lower half of the housing. These additional components are fastened pressure-tight in the manner of a lid from the outside by means of a screw to the housing. A remaining disadvantage of this design lies in the collision of the cover screw with the Teilfugenverschraubung for the two housing halves.
Daneben kann es von Nachteil sein, dass Dichtungselemente des Deckels beim Absenken des Gehäuseoberteils beschädigt werden können.In addition, it may be disadvantageous that sealing elements of the lid can be damaged when lowering the upper housing part.
Die beschriebenen Probleme sind mit zunehmender Baugröße von steigender Schwierigkeit.The problems described are of increasing difficulty with increasing size.
Die Erfindung hat es sich zur Aufgabe gemacht, ein Gehäuse zu schaffen, welches auch bei hohen thermischen sowie mechanischen Belastungen bzw. Verformungen ein großes Maß der Symmetrie aufweist.The invention has set itself the task of creating a housing which has a high degree of symmetry even at high thermal and mechanical loads or deformations.
Hierbei soll die gegenseitige Beeinflussung der Befestigungselemente im Bereich der Teilfuge für das Gehäuse und derjenigen für den Deckel vermieden werden. Daneben soll ein Montageverfahren geschaffen werden, welches eine Beschädigung von Dichtungselementen verhindert.Here, the mutual influence of the fasteners in the parting line for the housing and that for the lid should be avoided. In addition, an assembly process is to be created which prevents damage to sealing elements.
Zur Lösung der erfindungsgemäßen Aufgabe wird vorgeschlagen, dass der Deckel mindestens ein sich radial zur Längsachse nach außen erstreckenden ersten Vorsprung aufweist, welcher sich im montierten Zustand vom Gehäuseinneren her an mindestens einem sich radial zur Längsachse nach innen erstreckenden zweiten Vorsprung abstützt.In order to achieve the object according to the invention, it is proposed that the cover has at least one first projection extending radially outward from the longitudinal axis, which in the mounted state is supported by the housing interior on at least one second projection extending radially inwards to the longitudinal axis.
Die erfindungsgemäße Lösung des sich mittels eines größeren Außendurchmessers am Gehäuseinneren abstützenden Deckels hat den entscheidenden Vorteil, dass übermäßig groß dimensionierte Befestigungselemente des Deckels insbesondere im Bereich der Teilfuge des Gehäuses entfallen können. Der Deckel muss lediglich in seiner Betriebsposition fixiert sein und legt sich abhängig von dem Innendruck des Gehäuses insbesondere dichtend an der axialen Fläche des kleineren Durchmessers der Öffnung des Gehäuses an. Eine zusätzliche Dichtfunktion ist vor allem dann gewährleistet, wenn sich der erste Vorsprung in Umfangsrichtung über den gesamten Umfang des Deckels erstreckt und der zusätzliche zweite Vorsprung sich in Umfangsrichtung entlang des gesamten Umfangs der von den beiden Gehäusehälften gebildeten Öffnung erstreckt.The solution according to the invention of the cover which is supported on the inside of the housing by means of a larger outside diameter has the decisive advantage that overly large fastening elements of the cover, in particular in the region of the parting line of the housing, can be dispensed with. The lid only has to be fixed in its operating position and, depending on the internal pressure of the housing, lies in a sealing manner against the axial surface of the smaller diameter of the opening of the housing. An additional sealing function is particularly ensured when the first projection extends in the circumferential direction over the entire circumference of the lid and the additional second projection extends in the circumferential direction along the entire circumference of the opening formed by the two housing halves.
Ist das Gehäuse Bauteil eines Turbosatzes, insbesondere Turbokompressors ist es zur Herausführung der Welle sinnvoll, wenn der Deckel eine vorzugsweise zentrisch angeordnete Öffnung aufweist, aus welcher eine Welle des Turbosatzes herausragt. Diese Welle kann mit antreibenden oder angetriebenen anderen Anlagenmodulen in Verbindung stehen. Hierbei ist es besonders zweckmäßig, wenn der Deckel Träger einer Wellendichtung und/oder auch eines Wellenlagers ist. Daneben kann der Deckel auch Träger eines Eintrittsleitapparates für einen Kompressor sein. Sowohl Wellendichtung, Eintrittsleitapparat als auch das Wellenlager können hierbei in Umfangsrichtung ungeteilt ausgebildet sein, was insbesondere hinsichtlich weiterer eingesparter Befestigungselemente, insbesondere im Teilfugenbereich, Vorteile bringt und stets ein hohes Maß an Symmetrie auch bei Verformung begünstigt. Daneben schafft die Möglichkeit der Verwendung eines ungeteilten Lagers beispielsweise eine Erweiterung der Auswahl einsetzbarer Magnetlager, beispielsweise können gekapselte Magnetlager Verwendung finden.If the housing is a component of a turbo set, in particular turbocompressor, it makes sense to lead out the shaft if the cover has a preferably centric arrangement Has opening from which protrudes a shaft of the turbo set. This shaft may be associated with driving or powered other equipment modules. It is particularly expedient if the cover is a carrier of a shaft seal and / or a shaft bearing. In addition, the lid may also be a carrier of a Eintrittsleitapparates for a compressor. Both shaft seal, Eintrittsleitapparat and the shaft bearing can be formed here undivided in the circumferential direction, which in particular in terms of further saved fasteners, especially in the joint area, brings benefits and always favors a high degree of symmetry even with deformation. In addition, the possibility of using an undivided bearing, for example, an extension of the selection usable magnetic bearing, for example, encapsulated magnetic bearings can be used.
Vorteilhaft ist der Deckel an dem Gehäuse bzw. den beiden Gehäusehälften fixiert, so dass er in seiner Endposition gehalten ist. Bevorzugt ist keine Verschraubung im üblichen Sinne vorhande.Advantageously, the lid is fixed to the housing or the two housing halves, so that it is held in its end position. Preferably, no screwing in the usual sense exists.
Zur Abdichtung des Gehäuses gegenüber dem Deckel ist es zweckmäßig, wenn der erste Vorsprung und der zweite Vorsprung gemeinsam eine Dichtung bilden. Hierbei kann sowohl der erste Vorsprung als auch der zweite Vorsprung jeweils als Dichtfläche oder als Dichtungsträger ausgebildet sein.For sealing the housing relative to the cover, it is expedient if the first projection and the second projection together form a seal. In this case, both the first projection and the second projection may each be formed as a sealing surface or as a seal carrier.
Für hohe Drücke ist es besonders zweckmäßig, wenn eine Reihenanordnung zweier Dichtungen im Dichtungsbereich zwischen Deckel und Gehäuse Anwendung finden. Hierbei können sowohl rein metallische Dichtungen als auch gesonderte Dichtelemente eingesetzt werden oder auch eine Kombination aus diesen. Besonders zweckmäßig ist vom Gehäuseinneren ausgehend zunächst eine metallische Dichtung und nachfolgend ein zusätzliches Dichtelement. Im einzelnen sieht eine besonders vorteilhafte Weiterbildung der Erfindung vor, dass der erste Vorsprung auf der in Richtung des zweiten Vorsprungs weisenden Seite einen Absatz aufweist, welcher eine erste Dichtfläche von einer radial weiter außen liegenden dritten Dichtfläche trennt und der zweite Vorsprung dazu jeweils korrespondierend zu der ersten Dichtfläche und der dritten Dichtfläche eine zweite und vierte Dichtflächen aufweist. Dieser Absatz kann vorteilhaft als Abstufung ausgebildet sein, wobei der größere Außendurchmesser weiter im Gehäuseinneren angeordnet ist als der kleinere Außendurchmesser. Diese Abstufung ist entsprechend umgekehrt an der Öffnung des Gehäuses, welche der Deckel verschließt, vorzusehen.For high pressures, it is particularly useful when a series arrangement of two seals in the sealing area between the lid and housing are used. Here, both purely metallic seals as well as separate sealing elements can be used or a combination of these. It is particularly expedient starting from the inside of the housing initially a metallic seal and subsequently an additional sealing element. In particular, a particularly advantageous development of the invention provides that the first projection on the in the direction of the second Projecting side facing has a shoulder which separates a first sealing surface of a radially outer third sealing surface and the second projection to each corresponding to the first sealing surface and the third sealing surface has a second and fourth sealing surfaces. This paragraph can be advantageously designed as a gradation, wherein the larger outer diameter is disposed further inside the housing than the smaller outer diameter. This gradation is correspondingly reversed at the opening of the housing, which closes the lid to provide.
Das erfindungsgemäße Verfahren zur Montage eines Gehäuses bzw. Gehäuses einer Turbomaschine sieht vor, dass
- in einem ersten Schritt eine zumindest teilweise halbzylindrische erste Gehäusehälfte als Unterteil an dem Montageort angeordnet wird,
- in einem zweiten Schritt eine Welle der Turbomaschine gemeinsam mit mindestens einem Deckel für eine Stirnseite des Gehäuses in das erste Gehäuseteil abgesenkt wird, wobei die Welle den Deckel in einer Öffnung des Deckels durchdringt und wobei der Deckel sich gegenüber seiner axialen Endposition bezüglich der Welle und des Gehäuses ins Gehäuseinnere versetzt befindet,
- in einem dritten Schritt ein halbzylindrisches zweites Gehäuseteil auf das erste Gehäuseteil abgesenkt wird und
- in einem vierten Schritt der Deckel in seine Endlage gebracht und dort an den beiden Gehäuseteilen fixiert wird.
- in a first step, an at least partially semi-cylindrical first housing half is arranged as a lower part at the installation location,
- in a second step, a shaft of the turbomachine is lowered together with at least one cover for a front side of the housing in the first housing part, wherein the shaft penetrates the lid in an opening of the lid and wherein the lid relative to its axial end position with respect to the shaft and Housing is placed inside the housing,
- in a third step, a semi-cylindrical second housing part is lowered onto the first housing part and
- in a fourth step, the cover is brought into its end position and fixed there to the two housing parts.
Vorzugsweise werden die beiden Gehäuseteile vor der Fixierung des Deckels an diesen zunächst vorzugsweise mittels Teilfugenschrauben aneinander befestigt. Zweckmäßig ist der Deckel gleichzeitig als Trägerelement für eine Wellendichtung und/oder ein Wellenlager und/oder einen Eintrittsleitapparat ausgebildet.Preferably, the two housing parts are first fastened to each other before the fixation of the lid, preferably by means of partial joint screws. Suitably, the lid is simultaneously formed as a carrier element for a shaft seal and / or a shaft bearing and / or a Eintrittsleitapparat.
Im Folgenden wird die Erfindung unter Bezugnahme auf eine Zeichnung anhand eines speziellen Ausführungsbeispiels näher erläutert. Neben diesem speziellen Ausführungsbeispiel ergeben sich dem Fachmann aus der vorliegenden Erfindung zahlreiche weitere Ausführungsmöglichkeiten.In the following the invention will be explained in more detail with reference to a drawing with reference to a specific embodiment. In addition to this particular embodiment The expert from the present invention will find numerous other possible embodiments.
Es zeigt:
- Figur 1
- eine Draufsicht auf einen Teil eines Kompressors geöffnet in der Teilfugenebene mit geschnittenem erfindungsgemäßen Deckel und Eintrittsleitapparat sowie Wellendichtung und Lager jeweils zu einer Hälfte dargestellt.
- FIG. 1
- a plan view of a portion of a compressor open in the parting plane with cut lid according to the invention and inlet guide and shaft seal and bearing each shown to one half.
Das Gehäuse 2 ist in einer Teilfugenebene mittels einer Teilfuge 3 trennbar, so dass das erste Gehäuseteil 1 und das zweite Gehäuseteil voneinander entfernt werden können. An einer ersten Stirnseite 4 weist das Gehäuse 2 eine durchgehende Ausnehmung 8 auf, welche mittels eines Deckels 6 verschließbar ist, welcher Deckel eine Öffnung 5 aufweist, durch die eine Welle 7 aus dem Gehäuse 2 zur Übertragung von Kräften bzw. Drehmomenten herausgeführt ist. Die Öffnung 5 des Deckels 6 zur Herausführung der Welle 7 weist eine Abdichtung zwischen dem stehenden Deckel 6 und der rotierenden Welle 7 mittels einer Wellendichtung 9 (Öltrennung 9a, Gasdichtung 9b, Reingaslabyrinth 9c) auf, die an dem Deckel befestigt ist. Ein Lager 10 zur Lagerung der Welle 7 und ein Eintrittsleitapparat 11 des Kompressors zu Strömungsführung sind ebenfalls an dem Deckel 6 abgestützt und befestigt.The housing 2 is separable in a part-joint plane by means of a
Der Deckel 6 ist am radial äußeren Umfang mit einem umlaufenden ersten Vorsprung 12 versehen, der sich an einem gegenüberliegenden zweiten Vorsprung 13 der Ausnehmung 8 des Gehäuses 2 gegen den inneren Überdruck in dem Gehäuse 2 abstützt. Der erste Vorsprung 12 weist eine sich in Umfangsrichtung erstreckende erste Dichtfläche 31 auf, die mit einer sich in Umfangsrichtung erstreckenden zweiten Dichtfläche 32 an dem zweiten Vorsprung 13 an dem Gehäuse 2 zusammenwirkt. Radial nach innen und axial nach außen gegenüber der ersten Dichtfläche 31 versetzt befindet sich eine dritte Dichtfläche 33 an dem ersten Vorsprung 12 des Deckels 6, der von der ersten Dichtfläche 31 mittels eines Absatzes 16 in der Art einer Abstufung 17 getrennt ist und die mit einer gegenüberliegenden vierten Dichtfläche 34 an dem zweiten Vorsprung 13 des Gehäuses 2 zusammenwirkt. Die erste Dichtfläche 31 wirkt hierbei mit der zweiten Dichtfläche 32 gemeinsam als metallische Dichtung, während die radial etwas nach innen und axial etwas zum Äußeren des Gehäuses 2 versetzte dritte Dichtfläche 33 mit einer Nut 20 versehen ist, welche eine O-Ringdichtung 21 trägt, die gegen die vierte Dichtfläche 34 des Gehäuses 2 dichtet.The
Die Montage eines erfindungsgemäßen Gehäuses 2 mit stirnseitigem Deckel 6, der im beschriebenen Ausführungsbeispiel gleichzeitig Träger eines Lagers, einer Wellendichtung und eines Eintrittleitapparates ist, erfolgt in den folgenden Schritten:
- 1. Anordnung des ersten Gehäuseteiles 1 bzw. Gehäuseunterteiles,
- 2.
Vormontage der Welle 7,mit dem Deckel 6, - 2a. Absenken der vormontierten Welle mit den angebrachten Modulen.
- 3. Aufsetzen des zweiten Gehäuseteiles des Gehäuses 2 auf das erste Gehäuseteil 1 und Fertigmontage der Verbindung der beiden Gehäuseteile,
- 4. Axiales Verschieben des Deckels 6 gemeinsam mit den angebrachten Baugruppen in axialer Richtung der
Welle 7 von dem Gehäuseinneren in Richtung des Gehäuseäußeren, bis der ersteVorsprung 12 an dem zweitenVorsprung 13 zur dichtenden Anlage kommt und Fixierung des Deckels 6 in der Endposition.
- 1. Arrangement of the first housing part 1 or housing lower part,
- 2. Pre-assembly of the
shaft 7, with thelid 6, - 2a. Lowering the pre-assembled shaft with the attached modules.
- 3. placing the second housing part of the housing 2 on the first housing part 1 and final assembly of the connection of the two housing parts,
- 4. Axial displacement of the
cover 6 together with the mounted assemblies in the axial direction of theshaft 7 of the housing interior in the direction of the housing exterior, until thefirst projection 12 comes to thesecond projection 13 for sealing engagement and fix thelid 6 in the final position.
Der Deckel trägt zwar während des Betriebes das Lager 10, die Wellendichtung 9 und den Eintrittsleitapparat 11, bei der Montage des Deckels 6 zur Welle 7 werden aber die Wellendichtung und die Lagerung durch Montageeinsätze ersetzt, die mit kleinem Spiel, die Welle zum Deckel zentrieren. Der Eintrittsleitapparat wird vor der Wellenmontage am Deckel befestigt. An diesem ist auch ein Montageeinsatz befestigt. Nur durch das erfindungsgemäße Verfahren kann ein einteiliger Eintrittsleitapparat verwendet werden.Although the cover carries during operation the
Claims (13)
dadurch gekennzeichnet, dass
der Deckel (6), mindestens einen sich radial zur Längsachse (70) nach außen erstreckenden ersten Vorsprung (12), welcher im montierten Zustand vom Gehäuseinneren her an mindestens einem sich radial zur Längsachse (70) nach innen ersteckenden zweiten Vorsprung (13) des Gehäuses (2) abgestützt ist.Housing with a longitudinal axis (70), in particular housing (2) of a turbomachine, in particular a turbo compressor comprising at least two at least partially semi-cylindrical housing parts (first housing part (1), second housing part) with a parallel to the longitudinal axis (70) extending cylinder axis and at least one end-side cover (6), which extends transversely to the longitudinal axis (70) flat, and one of the two housing parts (first housing part (1), second housing part) enclosed through recess (8) closes,
characterized in that
the lid (6) has at least one first projection (12) extending outward radially relative to the longitudinal axis (70) and at least one second projection (13) of the housing opening radially inwardly of the longitudinal axis (70) Housing (2) is supported.
dadurch gekennzeichnet, dass der Deckel eine Öffnung (5) aufweist, durch welche eine Welle (7) aus dem Gehäuse (2) herausgeführt ist.Housing (2) according to claim 1,
characterized in that the lid has an opening (5) through which a shaft (7) is led out of the housing (2).
dadurch gekennzeichnet, dass
sich der erste Vorsprung (12) über den gesamten Umfang des Deckels (6) in Umfangsrichtung erstreckt und der zweite Vorsprung (13) sich in Umfangsrichtung entlang des gesamten Umfangs der von den beiden Gehäusehälften gebildeten durchgehenden Ausnehmung (8) erstreckt.Housing (2) according to claim 1 or 2,
characterized in that
the first projection (12) extends circumferentially over the entire circumference of the cover (6) and the second projection (13) extends circumferentially along the entire circumference of the through recess (8) formed by the two housing halves.
dadurch gekennzeichnet, dass
der erste Vorsprung (12) und der zweite Vorsprung (13) gemeinsam eine Dichtung bilden.Housing (2) according to claim 3,
characterized in that
the first projection (12) and the second projection (13) together form a seal.
dadurch gekennzeichnet, dass
der erste Vorsprung (12) und der zweite Vorsprung (13) jeweils als Dichtfläche (31, 32, 33, 34) oder Dichtungsträger ausgebildet sind.Housing (2) according to claim 4,
characterized in that
the first projection (12) and the second projection (13) are each formed as a sealing surface (31, 32, 33, 34) or seal carrier.
dadurch gekennzeichnet, dass
der erste Vorsprung (12) auf der in Richtung des zweiten Vorsprungs (13) weisenden Seite einen Absatz aufweist, welcher eine sich in Umfangsrichtung erstreckende erste Dichtfläche (31) von einer radial weiter außen liegenden sich in Umfangsrichtung erstreckenden dritten Dichtfläche (33) trennt und der zweite Vorsprung (13) dazu jeweils korrespondierend eine zweite und eine vierte Dichtfläche (32, 34) aufweist.Housing (2) according to one of the preceding claims 4, 5,
characterized in that
the first projection (12) has a shoulder on the side facing in the direction of the second projection (13) which separates a circumferentially extending first sealing surface (31) from a radially outer circumferential sealing surface (33) the second projection (13) has a corresponding second and fourth sealing surface (32, 34).
dadurch gekennzeichnet, dass
mindestens eine der Dichtflächen (31, 32, 33, 34) als Dichtungsträger ausgebildet ist.Housing (2) according to one of the preceding claims,
characterized in that
at least one of the sealing surfaces (31, 32, 33, 34) is designed as a seal carrier.
dadurch gekennzeichnet, dass
der Deckel (6) Träger einer Wellendichtung (9) ist, welche die durchgeführte Welle (7) zu der Öffnung (5) des Deckels (6) abdichtet.Housing (2) according to one of the preceding claims,
characterized in that
the cover (6) is a carrier of a shaft seal (9) which seals the shaft (7) made to the opening (5) of the cover (6).
dadurch gekennzeichnet, dass
der Deckel (6) Träger eines Lagers (10) zur Lagerung der Welle (7) ist.Housing (2) according to one of the preceding claims,
characterized in that
the cover (6) carries a bearing (10) for supporting the shaft (7).
dadurch gekennzeichnet, dass
der Deckel (6) an dem Gehäuse (2) fixiert ist.Housing (2) according to one of the preceding claims,
characterized in that
the lid (6) is fixed to the housing (2).
dadurch gekennzeichnet, dass
das Gehäuse (2) mittels einer Teilfuge (3) in einer Teilfugenebene in das erste Gehäuseteil (1) und das zweite Gehäuseteil voneinander trennbar ausgebildet sind teilbar ausgebildet ist und mittels Teilfugenschrauben die beiden Gehäuseteile miteinander verschraubbar sind.Housing (2) according to one of the preceding claims,
characterized in that
the housing (2) by means of a parting line (3) in a parting plane in the first housing part (1) and the second housing part formed separable from each other are formed divisible and by means of parting screws, the two housing parts are screwed together.
dadurch gekennzeichnet, dass
characterized in that
dadurch gekennzeichnet, dass
an dem Deckel (6) ein Lager (10) zur Lagerung der Welle (7) und/oder ein Eintrittleitapparat (11) vormontiert vorgesehen sind.Method according to claim 11,
characterized in that
on the cover (6) a bearing (10) for supporting the shaft (7) and / or a Eingangsleitapparat (11) are provided pre-assembled.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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EP06025625.2A EP1933038B1 (en) | 2006-12-11 | 2006-12-11 | Casing for turbomachine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP06025625.2A EP1933038B1 (en) | 2006-12-11 | 2006-12-11 | Casing for turbomachine |
Publications (2)
Publication Number | Publication Date |
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EP1933038A1 true EP1933038A1 (en) | 2008-06-18 |
EP1933038B1 EP1933038B1 (en) | 2016-08-24 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP06025625.2A Active EP1933038B1 (en) | 2006-12-11 | 2006-12-11 | Casing for turbomachine |
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DE102010041210A1 (en) | 2010-09-22 | 2012-03-22 | Siemens Aktiengesellschaft | casing |
WO2012038398A1 (en) * | 2010-09-22 | 2012-03-29 | Siemens Aktiengesellschaft | Arrangement having a seal, seal, and turbocompressor |
WO2013121012A1 (en) * | 2012-02-17 | 2013-08-22 | Siemens Aktiengesellschaft | Assembly of a turbomachine |
WO2013127837A1 (en) * | 2012-02-29 | 2013-09-06 | Siemens Aktiengesellschaft | Turbomachine having a temperature-controlled cover |
DE102014218941A1 (en) * | 2014-09-19 | 2016-03-24 | Siemens Aktiengesellschaft | Radial turbofan energy machine, method of assembly |
DE102014218936A1 (en) * | 2014-09-19 | 2016-03-24 | Siemens Aktiengesellschaft | Radial turbofan energy machine, method of assembly |
DE102016205528A1 (en) * | 2016-04-04 | 2017-10-05 | Siemens Aktiengesellschaft | Pressure vessel with a housing body and a housing cover |
EP3421816A4 (en) * | 2016-03-28 | 2019-04-03 | Mitsubishi Heavy Industries Compressor Corporation | Centrifugal compressor |
US10563540B2 (en) | 2013-10-08 | 2020-02-18 | Nuovo Pignone Srl | Casing for a rotating machine and rotating machine including such casing |
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CN103119305B (en) * | 2010-09-22 | 2016-02-17 | 西门子公司 | There is device and the pressurized container of Sealing |
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WO2013127837A1 (en) * | 2012-02-29 | 2013-09-06 | Siemens Aktiengesellschaft | Turbomachine having a temperature-controlled cover |
US10563540B2 (en) | 2013-10-08 | 2020-02-18 | Nuovo Pignone Srl | Casing for a rotating machine and rotating machine including such casing |
DE102014218941A1 (en) * | 2014-09-19 | 2016-03-24 | Siemens Aktiengesellschaft | Radial turbofan energy machine, method of assembly |
DE102014218936A1 (en) * | 2014-09-19 | 2016-03-24 | Siemens Aktiengesellschaft | Radial turbofan energy machine, method of assembly |
EP3421816A4 (en) * | 2016-03-28 | 2019-04-03 | Mitsubishi Heavy Industries Compressor Corporation | Centrifugal compressor |
US10876546B2 (en) | 2016-03-28 | 2020-12-29 | Mitsubishi Heavy Industries Compressor Corporation | Centrifugal compressor |
DE102016205528A1 (en) * | 2016-04-04 | 2017-10-05 | Siemens Aktiengesellschaft | Pressure vessel with a housing body and a housing cover |
WO2017174279A1 (en) | 2016-04-04 | 2017-10-12 | Siemens Aktiengesellschaft | Pressurized container with a housing body and a housing lid |
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