EP2407646B1 - Method and device for adjusting the position of the rotor assembly of a gas or steam turbine - Google Patents
Method and device for adjusting the position of the rotor assembly of a gas or steam turbine Download PDFInfo
- Publication number
- EP2407646B1 EP2407646B1 EP11171322.8A EP11171322A EP2407646B1 EP 2407646 B1 EP2407646 B1 EP 2407646B1 EP 11171322 A EP11171322 A EP 11171322A EP 2407646 B1 EP2407646 B1 EP 2407646B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- housing
- flange
- rotor
- region
- relative
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 title claims description 15
- 239000007789 gas Substances 0.000 description 21
- 238000012937 correction Methods 0.000 description 6
- 238000006073 displacement reaction Methods 0.000 description 6
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 235000012046 side dish Nutrition 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000004807 localization Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
Images
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
- F01D25/243—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
- F01D25/16—Arrangement of bearings; Supporting or mounting bearings in casings
- F01D25/162—Bearing supports
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/30—Exhaust heads, chambers, or the like
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- 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
- F05D2230/00—Manufacture
- F05D2230/60—Assembly methods
- F05D2230/64—Assembly methods using positioning or alignment devices for aligning or centring, e.g. pins
-
- 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
- F05D2230/00—Manufacture
- F05D2230/60—Assembly methods
- F05D2230/64—Assembly methods using positioning or alignment devices for aligning or centring, e.g. pins
- F05D2230/644—Assembly methods using positioning or alignment devices for aligning or centring, e.g. pins for adjusting the position or the alignment, e.g. wedges or eccenters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49316—Impeller making
- Y10T29/4932—Turbomachine making
- Y10T29/49321—Assembling individual fluid flow interacting members, e.g., blades, vanes, buckets, on rotary support member
Definitions
- the present invention relates to a method for adjusting the rotor position in a gas turbine or steam turbine and a device for adjusting the rotor position in a gas turbine or steam turbine, or a gas turbine / steam turbine with such a device.
- the positioning and adjustment of the radial position of the rotor hitherto done by shifting the support bearing of the rotor.
- the displacement in the vertical and horizontal directions is achieved by interchanging or exchanging inserts of such a bearing.
- the positioning accuracy of this method is in the range of 0.05 mm.
- the total time required for a correction is accordingly in the range of approximately 12 layers, which amounts to an enormous interruption of operation with corresponding costs.
- the D1 describes for this purpose two annular "localization members" which are adjustable in the radial plane between housing parts to the housing and with which engine housing parts are aligned relative to each other.
- the present invention relates to an improved method for adjusting the position of a rotor of a gas turbine or a steam turbine relative to the housing surrounding this rotor in the flow region. Furthermore, the present invention relates to a gas turbine or a steam turbine, which has appropriate devices to perform such a method.
- the method according to the invention is characterized in particular in that the relative position of the rotor is adjusted to the first housing surrounding the rotor in the flow region, by loosening the screw connection with which the first housing is fastened to the elements supporting the rotor in a first step.
- the latter is a second housing in the storage area de rotor, which second housing has a fixed relative position with respect to the rotor end and is bolted to the first housing.
- the correction of the radial rotor position is thus typically carried out by a displacement on the radial flange of the second housing. Positioning is ensured by adjustable wedges or surrounding shims. This results in a reduction of the required time to about 3 layers. In addition, a higher accuracy of the setting is possible.
- a gas turbine in the first housing to the compressor housing and the second housing to the compressor inlet housing.
- the first housing in order to adjust the position in the vertical direction after opening the screw connection, is positioned using hydraulics and shims which are provided on the upper side and lower side of the first wedge elements are interchanged. Since such shims can be made very thin, and are also located at very accessible locations of the machine, a very precise orientation is possible.
- the abovementioned wedge elements are typically arranged laterally on both sides of the housing, that is, with respect to the direction of rotation of the turbine, approximately at the positions 3 and 9 o'clock.
- the vertical position in other words the height of the first housing (relative to the rotor)
- the lateral position that is the positioning in a horizontal displacement direction, is normally not determined by these wedge elements, the housing is displaceable on the wedges in this direction.
- either top or bottom (or Both) be arranged another analog wedge element, which in turn determines the lateral position but not the horizontal.
- a method is characterized in that at least one second wedge element is arranged, this second wedge element fixing the position of the first housing in the horizontal direction relative to the second housing (typically again via the replacement of shims), and the position in horizontal direction (ie up and down) can be displaced.
- the first housing is positioned using a hydraulic and Beilagebleche, which are provided on the lateral sides of the second wedge member, interchanged or replaced. The positioning can be done first in the vertical direction and then in horizontal, or vice versa.
- the present invention relates to a turbine, in particular gas turbine or steam turbine, which enables the implementation of the method described above.
- a turbine has a rotor disposed in a first housing, which is mounted in the region of a second housing (or bearing block), wherein the first housing is attached to the second housing.
- Such a turbine according to the invention is characterized in that in the mounting region of the housing first wedge elements are provided which define the position of the first housing in the vertical direction relative to the second housing, and leave the position displaceable in the horizontal direction, as long as the screw of the two housings in dissolved State is.
- the first housing in such turbines typically has a radially outwardly directed first flange (or flange portion), and the second housing via a radially outwardly directed second, so to speak opposite flange.
- the first housing is attached to the second housing via these flanges.
- the rotor is supported on both sides and there are two such second housings.
- On the second opposite side but can also be another other housing (eg turbine housing), then the setting on such wedges can also be done at this interface.
- the invention preferably have the first flange and the second flange via axially aligned recesses, usually with respect to the rotational direction of the rotor at the positions 9 o'clock and 3 o'clock, and the Wedge elements are arranged bridging in these recesses and these in the axial direction.
- the first wedge elements are preferably in the form of blocks or rods with a rectangular or square cross section with a first region and a second region.
- first area is fixed in the recess of the first flange
- second area which has horizontally extending tops and bottoms, protrudes into the recess of the second flange and is arranged with vertical play in the recess of the second flange. This game is bridged by horizontal shims.
- the first area is fixed in the recess of the second flange, and the second area has horizontally extending tops and bottoms, and projects into the recess of the first vertical play flange, this play bridging over horizontal shims becomes.
- At least a second wedge element can be provided, which determines the position of the first housing in the horizontal direction relative to the second housing, and the position in the vertical direction can be displaced as long as the screw connection of the two housings in the released state.
- This second wedge element is preferably arranged with respect to the rotational direction of the rotor at the positions 12 o'clock and / or 6 o'clock.
- the second region of the first wedge elements can have at least one horizontal, radially with respect to the turbine axis extending threaded bore, so that the relative position of the first housing to the second housing can be adjusted via a screwed in this threaded adjustment screw. For example, when adjusting in the vertical direction using the wedge members and shims, adjustment is made horizontally by this set screw.
- the first wedge element and / or the second wedge element typically has a length in the axial direction, which lies at least in the region of the total thickness of the two flanges, that is, bridges them and, if appropriate, even protrudes somewhat beyond them in the axial direction on one or both sides.
- the first flange or the second flange can, typically in the area of first wedge elements, each have a locking screw, which holds the first housing with dissolved flange in position.
- This locking screw is preferably received in one of the two flanges in a threaded bore and arranged in the other flange in a recess with a substantially larger diameter than the diameter of the locking screw with opening-side extension.
- a shoulder sleeve (with circumferential flange) which passes centrally through the securing screw is preferably arranged with radial clearance.
- the shims (which may have different thicknesses to one another) have a thickness in the range of 0.025-0.5 mm, preferably in the range of 0.05-0.1 5 mm.
- the radial flange (compressor housing, compressor inlet housing) is in summary equipped with 3 adjustable wedges.
- 2 wedges (the first wedge elements mentioned above), installed on the left and right below the dividing plane, ensure the vertical orientation of the radial flange.
- Another wedge (the above-mentioned second wedge element) installed on the base ensures lateral, horizontal positioning.
- Two additional shoulder sleeves with a locking screw prevent opening of the flange connection when loosening the flange screw connection.
- Tapped holes in the side splines can allow lateral displacement with jacking screws or hydraulic tools.
- the gas turbine does not have to be opened.
- FIG. 1a shows a schematic section through the intake of the compressor of a gas turbine.
- the gas turbine 1 has a compressor 2.
- the compressor has a compressor housing 12, in which the rotor 37 rotates.
- the rotor 37 has a rotor end 4 which is mounted on a bearing block 5, which is typically formed together with the compressor inlet housing 3.
- the compressor inlet housing 3 encloses the intake of the compressor.
- the rotor end 4 is received in this compressor inlet housing 3 in a storage device 6, which in detail in FIG. 1b is shown.
- This storage device 6 is arranged in a cavity 10 of this compressor inlet housing 3 and thus difficult to access.
- the radial rotor position indicated schematically by an arrow and identified by reference numeral 14, be critical. This radial rotor position in the flow region, for example, during assembly or after opening the gas turbine for Maintenance or repairs are set. By adjusting the rotor position and the blade clearance 38 is adjusted.
- This method is not only expensive because the generally poorly accessible cavity 10 must be exposed, but is also cumbersome, because these settings are only possible when the rotor is raised.
- a setting requires readjustment of the entire shaft train.
- This includes the setting of a coupled generator shaft.
- this includes the setting of the gas turbine rotor, the generator shaft and also the setting of a coupled steam turbine shaft.
- FIG. 2 is now shown how such a positioning of the rotor can be significantly simplified.
- the compressor inlet housing 3 for this purpose has a radially outwardly extending flange 11.
- the compressor housing 12 also has a radially outwardly extending and with said flange 11 in abutting flange 13.
- These two flanges be, as in particular in the perspective view according to Figure 2c can be well recognized by screws, which are arranged in aligned holes in the two flanges with play attached.
- wedge elements 21 In a lateral view, such a wedge element is shown in its arrangement in said flanges ( Fig. 2b ).
- the flange 11 of the compressor inlet housing 3 has an axial recess 19, and directly opposite the flange 13 of the compressor housing 12 also has an axial recess 20.
- the recesses 19 and 20 are substantially aligned.
- a wedge element 21 is now arranged by having a first Region 22 is firmly fixed in the recess 19, for example with the aid of two screws 27.
- a second region 23 of this wedge element 21 now extends into the recess 20 in the flange 13 of the compressor housing.
- This second area 23 has horizontally extending upper sides 25 respectively. Bottoms 26. However, these are sufficiently spaced from the boundaries of the recess 20 so that in the vertical direction 17 of this area 23 a game remains.
- shims 24 which may be located on the bottom, on the top, or on both sides.
- the housing 12 remains displaceable in a horizontal direction 18, and is accordingly fixed in its vertical position but can now be adjusted in a horizontal step in a second step.
- a locking screw 31 as shown in a sectional view in FIG Figure 2d is shown to provide.
- the locking screw 31 is screwed into a threaded bore 33 in the flange 13.
- a large recess 32 is provided in the flange 11, in which a shoulder sleeve 34 is arranged with circumferential flange 35.
- the circumferential flange is in turn caught with play in an extension 36 of the recess 32.
- Such a locking screw is carried out according to the adjustment of the relative position of the housing 12 with a sleeve which has a radial Tolerance to the locking screw has, so that the relative position of the housing 12 to the housing 3 can be adjusted for example by the hydraulic system used.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
Die vorliegende Erfindung betrifft ein Verfahren zur Einstellung der Rotorlage bei einer Gasturbine oder Dampfturbine sowie eine Vorrichtung zur Einstellung der Rotorlage bei einer Gasturbine oder Dampfturbine, respektive eine Gasturbine/Dampfturbine mit einer derartigen Vorrichtung.The present invention relates to a method for adjusting the rotor position in a gas turbine or steam turbine and a device for adjusting the rotor position in a gas turbine or steam turbine, or a gas turbine / steam turbine with such a device.
Eine präzise Einstellung der Relativposition von Rotor einschliesslich darauf angeordneten rotierenden Elementen relativ zu den stationären Elementen (Gehäuse etc.) in einer Gasturbine oder Dampfturbine ist entscheidend für einen optimalen störungsfreien Betrieb und niedrige Wartungsintervalle. Eine ungenaue Positionierung führt zu Unterschieden im Strömungsverhalten um den Umfang herum, damit zu Verwirbelungen, lokal erhöhten Temperaturen etc. Weiter kann eine ungenaue Positionierung zu einer exzentrischen Rotorlage und einem starken Streifen der Schaufeln am Gehäuse führen und damit zu Schäden an der Beschauflung führen.Precise adjustment of the relative position of the rotor, including rotating elements thereon, relative to the stationary elements (housing, etc.) in a gas turbine or steam turbine is critical to optimum trouble-free operation and low maintenance intervals. Inaccurate positioning leads to differences in flow behavior around the circumference, causing turbulence, locally elevated temperatures, etc. Further, inaccurate positioning can lead to eccentric rotor position and a strong strip of blades on the housing, thereby causing damage to the blading.
Die Positionierung und Einstellung der radialen Lage des Rotors geschieht bisher durch Verschiebung der Traglager des Rotors. Die Verschiebung in vertikaler und horizontaler Richtung wird durch das Vertauschen oder Austauschen von Beilagen eines solchen Lagers erzielt. Die Positioniergenauigkeit bei diesem Verfahren liegt im Bereich von 0.05 mm.The positioning and adjustment of the radial position of the rotor hitherto done by shifting the support bearing of the rotor. The displacement in the vertical and horizontal directions is achieved by interchanging or exchanging inserts of such a bearing. The positioning accuracy of this method is in the range of 0.05 mm.
Problematisch an diesem Vorgehen ist unter anderem, dass die Traglager, integriert in Verdichtereinlaufgehäuse und Abgasgehäuse, von aussen nicht einfach zugänglich sind. Für eine Korrektur der Traglager muss die Gasturbine respektive Dampfturbine in einem sehr zeitaufwändigen Verfahren wenigstens teilweise geöffnet werden. Erfahrungsgemäss werden 6 Schichten ä 12 Stunden für eine derartige Korrektur des Kompressorlagers benötigt.One of the problems with this approach is that the support bearings integrated in the compressor inlet housing and the exhaust housing are not easily accessible from the outside. For a correction of the support bearing, the gas turbine or steam turbine in a very time-consuming procedures are at least partially opened. Experience has shown that 6
Nach der Verschiebung der Traglager im Verdichtereinlaufgehäuse müssen zudem anschliessend sämtliche Ölabstreifer und die Kupplungsausrichtung korrigiert werden. Der Zeitaufwand dafür ist typischerweise ca. 6 Schichten.After the displacement of the journal bearing in the compressor inlet housing also all oil scrapers and the coupling alignment must be corrected afterwards. The time required for this is typically about 6 shifts.
Der gesamte Zeitaufwand für eine Korrektur ist entsprechend im Bereich von circa 12 Schichten, was einem enormen Betriebsunterbruch mit entsprechenden Kosten gleichkommt.The total time required for a correction is accordingly in the range of approximately 12 layers, which amounts to an enormous interruption of operation with corresponding costs.
Aus der
Entsprechend betrifft die vorliegende Erfindung ein verbessertes Verfahren zur Einstellung der Lage eines Rotors einer Gasturbine oder einer Dampfturbine relativ zum diesen Rotor im Strömungsbereich umgebenden Gehäuse. Des weiteren betrifft die vorliegende Erfindung eine Gasturbine respektive eine Dampfturbine, welche über entsprechende Vorrichtungen verfügt, um ein derartiges Verfahren durchzuführen.Accordingly, the present invention relates to an improved method for adjusting the position of a rotor of a gas turbine or a steam turbine relative to the housing surrounding this rotor in the flow region. Furthermore, the present invention relates to a gas turbine or a steam turbine, which has appropriate devices to perform such a method.
Das erfindungsgemässe Verfahren ist insbesondere dadurch gekennzeichnet, dass die Relativposition des Rotors zu dem den Rotor im Strömungsbereich umgebenden ersten Gehäuse eingestellt wird, indem in einem ersten Schritt die Verschraubung, mit welcher das erste Gehäuse an den den Rotor lagernden Elementen befestigt ist, gelöst wird. Typischerweise handelt es sich bei Letzteren um ein zweites Gehäuse im Lagerungsbereich de Rotors, welches zweite Gehäuse eine feste Relativposition bezüglich Rotorende aufweist und mit dem ersten Gehäuse verschraubt ist.The method according to the invention is characterized in particular in that the relative position of the rotor is adjusted to the first housing surrounding the rotor in the flow region, by loosening the screw connection with which the first housing is fastened to the elements supporting the rotor in a first step. Typically, the latter is a second housing in the storage area de rotor, which second housing has a fixed relative position with respect to the rotor end and is bolted to the first housing.
Nach Öffnen der Verschraubung wird nun die Relativposition dieses zweiten Gehäuses zum ersten Gehäuse eingestellt. Diese Einstellung erfolgt über erste Keilelemente, wobei diese ersten Keilelemente die Position des ersten Gehäuses in vertikaler Richtung relativ zum zweiten Gehäuse festlegen, und die Position in horizontaler Richtung verschieblich lassen.After opening the screw the relative position of this second housing is now set to the first housing. This setting is made via first wedge elements, these first wedge elements, the position of the first housing in Set the vertical direction relative to the second housing, and leave the position in the horizontal direction displaceable.
Anschliessend wird, gegebenenfalls nach einer zusätzlichen Festlegung der Position in horizontaler Richtung, die Verschraubung wieder befestigt und damit das erste am zweiten Gehäuse fixiert.Subsequently, if necessary, after an additional determination of the position in the horizontal direction, the screw fastened again and thus the first fixed to the second housing.
Strömungsbereich der Heissgase respektive der Kompressionsluft, respektive des Dampfes nicht eingestellt, indem das Lager des Rotors ausgerichtet wird, sondern es wird vielmehr einfach nur der Gehäusebereich, der tatsächlich im Strömungsbereich den Rotor umgibt, relativ zum Rotor in die richtige Position gebracht. Typischerweise ist es ausreichend nur Gehäusebereiche, die den beschaufelten Teil des Rotors umgeben relativ zum Rotor in die richtige Position zu bringen. So erübrigen sich sämtliche Einstellungsmassnahmen, welche beim Verfahren nach dem Stand der Technik erforderlich sind, weil der Rotor in eine andere Position gebracht wird. Zudem ist die Befestigung des ersten Gehäuses am zweiten Gehäuse viel besser zugänglich und entsprechend können derartige Massnahmen mit wesentlich geringerem Zeitaufwand realisiert werden.Flow range of the hot gases or the compression air, respectively the steam is not adjusted by the bearing of the rotor is aligned, but it is simply just the housing portion, which actually surrounds the rotor in the flow area, relative to the rotor in the correct position. Typically, it is sufficient only to bring housing portions surrounding the bladed portion of the rotor into position relative to the rotor. Thus, all adjustment measures, which are required in the method according to the prior art, unnecessary because the rotor is moved to a different position. In addition, the attachment of the first housing on the second housing is much more accessible and accordingly, such measures can be realized with much less time.
Die Korrektur der radialen Rotorposition erfolgt also typischerweise durch eine Verschiebung am Radialflansch des zweiten Gehäuses. Die Positionierung wird durch einstellbare Keile respektive diese umgebende Beilagebleche gewährleistet. Dadurch ergibt sich eine Reduktion der benötigten Zeit auf ca. 3 Schichten. Zudem wird eine höhere Genauigkeit der Einstellung ermöglicht.The correction of the radial rotor position is thus typically carried out by a displacement on the radial flange of the second housing. Positioning is ensured by adjustable wedges or surrounding shims. This results in a reduction of the required time to about 3 layers. In addition, a higher accuracy of the setting is possible.
Typischerweise handelt es sich bei einer Gasturbine beim ersten Gehäuse um das Verdichtergehäuse und beim zweiten Gehäuse um das Verdichtereinlaufgehäuse.Typically, a gas turbine in the first housing to the compressor housing and the second housing to the compressor inlet housing.
Gemäss einer ersten bevorzugten Ausführungsform wird zur Einstellung der Position in vertikaler Richtung nach dem Öffnen der Verschraubung das erste Gehäuse unter Verwendung einer Hydraulik positioniert und Beilagebleche, welche auf der Oberseite respektive Unterseite der ersten Keilelemente vorgesehen sind, ausgetauscht werden. Da derartige Beilagebleche sehr dünn gewählt werden können, und zudem an sehr gut zugänglichen Stellen der Maschine angeordnet sind, ist eine sehr präzise Orientierung möglich.According to a first preferred embodiment, in order to adjust the position in the vertical direction after opening the screw connection, the first housing is positioned using hydraulics and shims which are provided on the upper side and lower side of the first wedge elements are interchanged. Since such shims can be made very thin, and are also located at very accessible locations of the machine, a very precise orientation is possible.
Die oben genannten Keilelemente sind typischerweise auf beiden Seiten des Gehäuses seitlich angeordnet, das heisst bezüglich Rotationsrichtung der Turbine ungefähr an den Positionen 3 und 9 Uhr. Durch die entsprechende Anordnung der Beilagebleche wird durch diese Keilelemente also die vertikale Position, mit anderen Worten die Höhe des ersten Gehäuses (relativ zum Rotor) eingestellt. Die seitliche Position, das heisst die Positionierung in einer horizontalen Verschiebungsrichtung, wird durch diese Keilelemente normalerweise nicht festgelegt, das Gehäuse ist auf den Keilen in dieser Richtung verschiebbar. Zur Festlegung in der horizontalen Verschiebungsrichtung kann gemäss einer weiteren bevorzugten Ausführungsform entweder oben oder unten (oder beides) ein weiteres analoges Keilelement angeordnet sein, welches seinerseits die seitliche Position festgelegt nicht aber die horizontale.The abovementioned wedge elements are typically arranged laterally on both sides of the housing, that is, with respect to the direction of rotation of the turbine, approximately at the
Entsprechend ist ein Verfahren gemäss einer bevorzugten Ausführungsform dadurch gekennzeichnet, dass wenigstens ein zweites Keilelement angeordnet ist, wobei dieses zweite Keilelement die Position des ersten Gehäuses in horizontaler Richtung relativ zum zweiten Gehäuse (typischerweise wiederum über die Austausch von Beilageblechen) festlegt, und die Position in horizontaler Richtung (das heisst nach oben und unten) verschieblich lässt. Vorzugsweise wird auch hier zur Einstellung der Position in horizontaler Richtung nach dem Öffnen der Verschraubung das erste Gehäuse unter Verwendung einer Hydraulik positioniert und Beilagebleche, welche auf den lateralen Seiten des zweiten Keilelements vorgesehen sind, vertauscht oder ausgetauscht. Die Positionierung kann zunächst in vertikaler Richtung erfolgen und anschliessend in horizontaler, oder umgekehrt.Accordingly, a method according to a preferred embodiment is characterized in that at least one second wedge element is arranged, this second wedge element fixing the position of the first housing in the horizontal direction relative to the second housing (typically again via the replacement of shims), and the position in horizontal direction (ie up and down) can be displaced. Preferably also here for adjusting the position in the horizontal direction after the opening of the screw, the first housing is positioned using a hydraulic and Beilagebleche, which are provided on the lateral sides of the second wedge member, interchanged or replaced. The positioning can be done first in the vertical direction and then in horizontal, or vice versa.
Des weiteren betrifft die vorliegende Erfindung eine Turbine, insbesondere Gasturbine oder Dampfturbine, welche die Durchführung des oben beschriebenen Verfahrens ermöglicht. Konkret verfügt eine derartige Turbine über einen in einem ersten Gehäuse angeordneten Rotor, welcher im Bereich eines zweiten Gehäuses (oder Lagerblockes) gelagert ist, wobei das erste Gehäuse am zweiten Gehäuse befestigt ist. Eine derartige Turbine ist erfindungsgemäss dadurch gekennzeichnet, dass im Befestigungsbereich der Gehäuse erste Keilelemente vorgesehen sind, welche die Position des ersten Gehäuses in vertikaler Richtung relativ zum zweiten Gehäuse festlegen, und die Position in horizontaler Richtung verschieblich lassen, solange die Verschraubung der beiden Gehäuse im gelösten Zustand ist.Furthermore, the present invention relates to a turbine, in particular gas turbine or steam turbine, which enables the implementation of the method described above. Specifically, such a turbine has a rotor disposed in a first housing, which is mounted in the region of a second housing (or bearing block), wherein the first housing is attached to the second housing. Such a turbine according to the invention is characterized in that in the mounting region of the housing first wedge elements are provided which define the position of the first housing in the vertical direction relative to the second housing, and leave the position displaceable in the horizontal direction, as long as the screw of the two housings in dissolved State is.
Das erste Gehäuse verfügt bei derartigen Turbinen typischerweise über einen radial nach aussen gerichteten ersten Flansch (oder Flanschbereich), und das zweite Gehäuse über einen radial nach aussen gerichteten zweiten, gewissermassen gegenüberliegenden Flansch. Dabei ist das erste Gehäuse am zweiten Gehäuse über diese Flansche befestigt. Normalerweise ist der Rotor auf beiden Seiten gelagert und es gibt zwei derartige zweite Gehäuse. Auf der zweiten gegenüberliegenden Seite kann aber auch ein weiteres anderes Gehäuse (z. B. Turbinengehäuse) liegen, dann kann die Einstellung über solche Keile auch an dieser Schnittstelle erfolgen. Erfindungsgemäss verfügen vorzugsweise der erste Flansch sowie der zweite Flansch über axial fluchtende Ausnehmungen, normalerweise bezüglich Rotationsrichtung des Rotors an den Positionen 9 Uhr und 3 Uhr, und die Keilelemente sind in diesen Ausnehmungen und diese in axialer Richtung überbrückend angeordnet.The first housing in such turbines typically has a radially outwardly directed first flange (or flange portion), and the second housing via a radially outwardly directed second, so to speak opposite flange. In this case, the first housing is attached to the second housing via these flanges. Normally, the rotor is supported on both sides and there are two such second housings. On the second opposite side but can also be another other housing (eg turbine housing), then the setting on such wedges can also be done at this interface. According to the invention preferably have the first flange and the second flange via axially aligned recesses, usually with respect to the rotational direction of the rotor at the
Die ersten Keilelemente sind dabei vorzugsweise in Form von Blöcken oder Stäben mit rechteckigem oder quadratischem Querschnitt mit einem ersten Bereich und einem zweiten Bereich ausgebildet.The first wedge elements are preferably in the form of blocks or rods with a rectangular or square cross section with a first region and a second region.
Nun ist entweder der erste Bereich in der Ausnehmung des ersten Flansches befestigt, und der zweite Bereich, der über horizontal verlaufende Oberseiten und Unterseiten verfügt, ragt in die Ausnehmung des zweiten Flansches hinein und ist mit vertikalem Spiel in der Ausnehmung des zweiten Flansches angeordnet. Dieses Spiel wird dabei über horizontale Beilagebleche überbrückt.Now, either the first area is fixed in the recess of the first flange, and the second area, which has horizontally extending tops and bottoms, protrudes into the recess of the second flange and is arranged with vertical play in the recess of the second flange. This game is bridged by horizontal shims.
Oder gewissermassen in der umgekehrten Situation ist der erste Bereich in der Ausnehmung des zweiten Flansches befestigt, und der zweite Bereich verfügt über horizontal verlaufende Oberseiten und Unterseiten, und ragt in die Ausnehmung des ersten Flansches mit vertikalem Spiel hinein, wobei dieses Spiel über horizontale Beilagebleche überbrückt wird.Or, to some extent, in the reverse situation, the first area is fixed in the recess of the second flange, and the second area has horizontally extending tops and bottoms, and projects into the recess of the first vertical play flange, this play bridging over horizontal shims becomes.
Auch hier kann vorzugsweise wiederum wenigstens ein zweites Keilelement vorgesehen werden, welches die Position des ersten Gehäuses in horizontaler Richtung relativ zum zweiten Gehäuse festlegt, und die Position in vertikaler Richtung verschieblich lässt, solange die Verschraubung der beiden Gehäuse im gelösten Zustand ist. Dieses zweite Keilelement ist vorzugsweise bezüglich Rotationsrichtung des Rotors an den Positionen 12 Uhr und/oder 6 Uhr angeordnet.Again, preferably at least a second wedge element can be provided, which determines the position of the first housing in the horizontal direction relative to the second housing, and the position in the vertical direction can be displaced as long as the screw connection of the two housings in the released state. This second wedge element is preferably arranged with respect to the rotational direction of the rotor at the
Der zweite Bereich der ersten Keilelemente kann über wenigstens eine horizontale, radial bezüglich der Turbinenachse verlaufende Gewindebohrung verfügen, so dass die Relativposition des ersten Gehäuses zum zweiten Gehäuse über eine in dieser Gewindebohrung eingeschraubte Stellschraube eingestellt werden kann. Wenn beispielsweise die Einstellung in vertikaler Richtung mit Hilfe der Keilelemente und Beilagebleche erfolgt, erfolgt die Einstellung in horizontaler Richtung durch diese Stellschraube.The second region of the first wedge elements can have at least one horizontal, radially with respect to the turbine axis extending threaded bore, so that the relative position of the first housing to the second housing can be adjusted via a screwed in this threaded adjustment screw. For example, when adjusting in the vertical direction using the wedge members and shims, adjustment is made horizontally by this set screw.
Das erste Keilelement und/oder das zweite Keilelement verfügt typischerweise über eine Länge in axialer Richtung, welche wenigstens im Bereich der Gesamtdicke der beiden Flansche liegt, das heisst diese überbrückt und gegebenenfalls auf einer oder beiden Seiten sogar noch etwas in axialer Richtung über diese hervorsteht.The first wedge element and / or the second wedge element typically has a length in the axial direction, which lies at least in the region of the total thickness of the two flanges, that is, bridges them and, if appropriate, even protrudes somewhat beyond them in the axial direction on one or both sides.
Der erste Flansch oder der zweite Flansch kann dabei, typischerweise im Bereich der ersten Keilelemente, über jeweils eine Sicherungsschraube verfügen, welche das erste Gehäuse bei gelöster Flanschverschraubung in Position hält. Diese Sicherungsschraube ist vorzugsweise in einem der beiden Flansche in einer Gewindebohrung aufgenommen und im anderen Flansch in einer Ausnehmung mit wesentlich grösserem Durchmesser als der Durchmesser der Sicherungsschraube mit öffnungsseitiger Erweiterung angeordnet. Dabei ist bevorzugtermassen in der Ausnehmung und der Erweiterung eine von der Sicherungsschraube zentral durchtretene Schulterhülse (mit umlaufendem Flansch) mit radialem Spiel angeordnet.The first flange or the second flange can, typically in the area of first wedge elements, each have a locking screw, which holds the first housing with dissolved flange in position. This locking screw is preferably received in one of the two flanges in a threaded bore and arranged in the other flange in a recess with a substantially larger diameter than the diameter of the locking screw with opening-side extension. In this case, in the recess and the extension, a shoulder sleeve (with circumferential flange) which passes centrally through the securing screw is preferably arranged with radial clearance.
Typischerweise verfügen die Beilagebleche (welche untereinander unterschiedliche Dicke aufweisen können) über eine Dicke im Bereich von 0.025-0.5 mm, vorzugsweise im Bereich von 0.05-0.1 5 mm.Typically, the shims (which may have different thicknesses to one another) have a thickness in the range of 0.025-0.5 mm, preferably in the range of 0.05-0.1 5 mm.
Bevorzugtermassen wird zusammenfassend der Radialflansch (Verdichtergehäuse, Verdichtereinlaufgehäuse) mit 3 einstellbaren Keilen ausgestattet. 2 Keile (die oben genannten ersten Keilelemente), installiert links und rechts unterhalb der Trennebene, gewährleisten die vertikale Ausrichtung des Radialflansches. Ein weiterer Keil (das oben genannte zweite Keilelement) installiert am Unterteil gewährleistet die seitliche, horizontale Positionierung.Preferably, the radial flange (compressor housing, compressor inlet housing) is in summary equipped with 3 adjustable wedges. 2 wedges (the first wedge elements mentioned above), installed on the left and right below the dividing plane, ensure the vertical orientation of the radial flange. Another wedge (the above-mentioned second wedge element) installed on the base ensures lateral, horizontal positioning.
Zwei zusätzliche Schulterhülsen bei einer Sicherungsschraube verhindern ein Öffnen der Flanschverbindung beim Lösen der Flanschverschraubung.Two additional shoulder sleeves with a locking screw prevent opening of the flange connection when loosening the flange screw connection.
Für eine Korrektur sind typischerweise folgende Arbeitsschritte nötig:
- a. Lösen der Flanschverschraubung. Die Schrauben müssen nicht entfernt werden.
- b. Anheben des Verdichtergehäuses mit hydraulischem Werkzeug bis die seitlichen Führungskeile entlastet sind.
- c. Demontage der Führungskeile.
- d. Korrektur der Führungskeile (korrektes Einlegen der Beilagebleche).
- e. Montage der Führungskeile
- f. Herunterlassen des Verdichtergehäuses.
- g. Anziehen der Flanschverschraubung.
- h. Positionskontrolle der radialen Rotorlage.
- a. Loosen the flange screw connection. The screws do not need to be removed.
- b. Lift the compressor housing with a hydraulic tool until the lateral guide wedges are relieved.
- c. Disassembly of the guide wedges.
- d. Correction of guide wedges (correct insertion of shims).
- e. Assembly of the guide wedges
- f. Lower the compressor housing.
- G. Tightening the flange screw connection.
- H. Position control of the radial rotor position.
Für eine Verschiebung in der horizontalen wird der 6 Uhr Keil korrigiert.For a shift in the horizontal, the 6 o'clock wedge is corrected.
Gewindebohrungen in den seitlichen Keilen können eine seitliche Verschiebung mit Abdrückschrauben oder hydraulischem Werkzeug ermöglichen.Tapped holes in the side splines can allow lateral displacement with jacking screws or hydraulic tools.
Die Gasturbine muss dabei nicht geöffnet werden.The gas turbine does not have to be opened.
Weitere Ausführungsformen sind in den abhängigen Ansprüchen angegeben. Alle Ausführungsformen sind sowohl für Gasturbinen mit einem Kompressor, einer Brennkammer und einer Turbine als auch für Gasturbinen mit mehreren Kompressoren und/ oder mehreren Brennkammern und/oder mehreren Turbinen, wie sie beispielsweise aus der
Bevorzugte Ausführungsformen der Erfindung werden im Folgenden anhand der Zeichnungen beschrieben, die lediglich zur Erläuterung dienen und nicht einschränkend auszulegen sind. In den Zeichnungen zeigen:
- Fig. 1
- in a) einen axialen Schnitt durch den Verdichtereinlaufbereich einer Gasturbine, in b) eine perspektivische Ansicht auf eine Lagerungsvorrichtung für einen Rotor nach dem Stand der Technik;
- Fig. 2
- in a) einen axialen Schnitt durch den Verdichtereinlaufbereich einer Gasturbine mit einer Flanschverschraubung nach der Erfindung; in b) einen Ausschnitt einer seitlichen Sicht auf die Flanschverschraubung mit einem Keil; in c) eine perspektivische Ansicht auf den Bereich der Flanschverschraubung mit Keil, wobei der Keil gewissermassen in Explosionsdarstellung, d.h. ausserhalb der Ausnehmungen in den Flanschen angegeben ist; in d) einen Schnitt durch eine Sicherungsschraube der Flanschverschraubung.
- Fig. 1
- in a) an axial section through the compressor inlet region of a gas turbine, in b) a perspective view of a bearing device for a rotor according to the prior art;
- Fig. 2
- in a) an axial section through the compressor inlet region of a gas turbine with a Flanschverschraubung according to the invention; in b) a section of a lateral view of the flange with a wedge; in c) a perspective view of the region of the flange screw with wedge, the wedge is in some sense in an exploded view, that is indicated outside the recesses in the flanges; in d) a section through a locking screw of the Flanschverschraubung.
Das Rotorende 4 ist in diesem Verdichtereinlaufgehäuse 3 in einer Lagervorrichtung 6 aufgenommen, die im Detail in
Für eine optimale Betriebsweise des Verdichters ist es wichtig, dass die radiale Rotorposition, die mit einem Pfeil schematisch angegeben und mit dem Bezugszeichen 14 vermerkt ist, entscheidend. Diese radiale Rotorposition im Strömungsbereich muss beispielsweise bei der Montage oder nach einem Öffnen der Gasturbine für Wartungsarbeiten oder Reparaturen eingestellt werden. Durch einstellen der Rotorposition wird auch das Schaufelspiel 38 eingestellt.For optimum operation of the compressor, it is important that the radial rotor position, indicated schematically by an arrow and identified by
Nach dem üblichen Verfahren erfolgt dies so, dass das Lager 6, welches speziell für eine derartige Einstellung ausgebildet ist, freigelegt wird, der Rotor resp. das Rotorende entlastet wird und für die Höhenverstellung die Beilagen 8 umgelegt werden resp. für die Seitenverstellung die Beilagen 9.According to the usual method, this is done so that the
Dieses Verfahren ist nicht nur aufwändig, weil der grundsätzlich schlecht zugängliche Hohlraum 10 freigelegt werden muss, sondern ist auch deshalb umständlich, weil diese Einstellungen nur möglich sind, wenn der Rotor angehoben wird. Zudem macht eine derartige Einstellung eine Nacheinstellung des gesamten Wellenstranges erforderlich. Dies beinhaltet die Einstellung einer angekuppelten Generatorwelle. Im Fall einer sogenannten Einwellenanlage beinhaltet dies die Einstellung des Gasturbinenrotors, der Generatorwelle und auch noch die Einstellung einer angekuppelten Dampfturbinenwelle.This method is not only expensive because the generally poorly
In
Beim in
Insbesondere bei einer derartigen relativen Befestigung der beiden Gehäuse 3 und 12 ist es nun möglich, Keilelemente 21 vorzusehen. In einer seitlichen Sicht ist ein solches Keilelement in seiner Anordnung in den genannten Flanschen dargestellt (
Dieses Spiel wird nun überbrückt durch Beilagebleche 24, welche auf der Unterseite, auf der Oberseite, oder auf beiden Seiten angeordnet sein können.This game is now bridged by
Bei einem solchen Keilelement, welches auf der Dreiuhrposition oder der Neunuhrposition des Flansches angeordnet ist, resp. leicht unterhalb, ist es nun möglich, wenn das Gehäuse 12 beispielsweise unter Zuhilfenahme einer Hydraulik leicht angehoben wird, Beilagebleche 24 zu entnehmen, die Position des Gehäuses 12 und damit des Flansches 13 so auszurichten, dass die Relativposition 14 wieder optimal eingestellt ist, und anschliessend die Beilagebleche wieder so einzulegen, dass der Bereich 23 im wesentlichen formschlüssig im Ausnehmungsbereich 20 des Flansches 13 gefangen ist.In such a wedge element, which is arranged on the three-o'clock position or the nine o'clock position of the flange, resp. slightly below, it is now possible, if the
Einmal so gefangen bleibt aber das Gehäuse 12 in einer horizontalen Richtung 18 verschiebbar, und ist entsprechend in seiner vertikalen Position fixiert aber kann nun in einem zweiten Schritt in der horizontalen Richtung eingestellt werden.Once caught, however, the
Zu diesem Zweck ist nun ein weiterer analog ausgestalteter Keil bei der Zwölfuhrposition und/oder der Sechsuhrposition angeordnet, auch dort werden nun die Beilagenbleche entfernt, die Einstellung in horizontaler Richtung 18 eingestellt, die Beilagebleche nun wieder im wesentlichen formschlüssig eingelegt und nun, nachdem sowohl die horizontale als auch die vertikale Position korrekt festgelegt sind, die Flanschverschraubung wieder festgezogen.For this purpose, now another analogously designed wedge at the twelve o'clock position and / or the six o'clock position is arranged, also there the side shims are removed, the setting in the
Um sicherzustellen, dass sich das Gehäuse 12 bei einem Lösen der Flanschverschraubung 29 nicht zu weit von der gewünschten Position verschieben kann, ist es möglich, eine Sicherungsschraube 31, wie sie in einer Schnittdarstellung in
Claims (11)
- Method for adjusting the position of a rotor (37) of a gas turbine (1) or a steam turbine, wherein the relative position of the rotor (37) to a first housing (12) surrounding the rotor (37) in the flow region is adjusted in that, in a second housing (3) in the mounting region of the rotor (37), which second housing (3) has a fixed position relative to the rotor end (4) and which is screwed to the first housing (12), after releasing the screwing, the relative position of this second housing (3) to the first housing (12) is adjusted and the screwing resecured, characterised in that the relative position of this second housing (3) to the first housing (3) is adjusted via first wedge elements (21), wherein these first wedge elements (21) establish the position of the first housing (12) in the vertical direction (17) relative to the second housing (3), and leave the position movable in the horizontal direction (18), and the screwing is resecured.
- Method according to claim 1, characterised in that to adjust the position in the vertical direction (17), after releasing the screwing, the first housing (12) is positioned using hydraulics and then shim plates (24), which are provided on the top side (25) or bottom side (26) respectively of the first wedge elements (21), are exchanged.
- Method according to one of the preceding claims, characterised in that at least one second wedge element is arranged, wherein this second wedge element establishes the position of the first housing (12) in the horizontal direction (18) relative to the second housing (3) and leaves the position movable in the horizontal direction, and that preferably, to adjust the position in the horizontal direction (18), after releasing the screwing, the first housing (12) is positioned using hydraulics and shim plates (24), which are provided on the sides of the second wedge element, are exchanged.
- Turbine, in particular gas turbine or steam turbine, with a rotor (37) arranged in a first housing (12) and having a rotor end (4) which is mounted in the region of the second housing (3), wherein the first housing (12) has a first flange (13) oriented radially outwardly, the second housing (3) has a second flange (11) oriented radially outwardly, and the first housing (12) is attached to the second housing (3) via these flanges (11, 13), characterised in that the first flange (13) and the second flange (11) have recesses (19, 20) aligned axially relative to the rotation direction of the rotor, and in the fixing region of the housing (3, 12), first wedge elements (21) are provided which are arranged in these recesses (19, 20) and bridge these in the axial direction, and which establish the position of the first housing (12) in the vertical direction (17) relative to the second housing (3) and leave the position movable in the horizontal direction (18) as long as the screwing of the two housings (3, 12) is in the released state.
- Turbine according to claim 4, characterised in that the recesses (19, 20) aligned axially relative to the rotation direction of the rotor are arranged at the 9 o'clock and 3 o'clock positions.
- Turbine according to claim 5, characterised in that the first wedge elements (21) are formed as blocks with a first region (22) and a second region (23), and
that the first region (22) is fixed in the recess (19) of the first flange (13), and the second region has a horizontally running top side (25) and bottom side (26), protrudes into the recess (20) of the second flange (11) and is arranged with vertical play in the recess (20) of the second flange (11), wherein this play is bridged by horizontal shim plates (24), or
that the first region (22) is fixed in the recess (20) of the second flange (11), and the second region (23) has a horizontally running top side (25) and bottom side (26), protrudes into the recess (19) of the first flange (13) and is arranged with vertical play in the recess (19) of the second flange (13), wherein this play is bridged by horizontal shim plates (24). - Turbine according to any of claims 4 to 6, characterised in that at least one second wedge element (21) is provided which establishes the position of the first housing (12) in the horizontal direction (18) relative to the second housing (3) and leaves the position movable in the vertical direction (17) as long as the screwing of the two housings (3, 12) is in the released state, wherein the second wedge element (21) is preferably arranged at the 12 o'clock or 6 o'clock position relative to the rotation direction of the rotor.
- Turbine according to any of the preceding claims 4 to 7, characterised in that the second region of the first wedge elements (21) has at least one horizontal threaded bore (28) running radially relative to the turbine axis, and that the relative position of the first housing (12) to the second housing (3) is adjusted via an adjustment screw screwed into this threaded bore (28).
- Turbine according to any of the preceding claims 4 to 8, characterised in that the first wedge element (21) and/or the second wedge element has a length in the axial direction which lies at least in the region of the total thickness of the two flanges (11, 13).
- Turbine according to any of the preceding claims 4 to 9, characterised in that the first flange (11) or the second flange (13) each have, in the region of the first wedge elements (21), a lock screw (31) which holds the first housing (12) in position when the flange screwing is released, wherein preferably this lock screw (31) in one flange is received in a threaded bore (33) and in the other flange is arranged in a recess (32) with widening (36) on the opening side, wherein a shoulder sleeve (34) protruding centrally from the locking screw (31) is arranged with play in the recess (32) and in the widening (36).
- Turbine according to any of the preceding claims 4 to 10, characterised in that the shim plates (24) have a thickness in the range from 0.025 to 0.5 mm, preferably in the range from 0.05 to 0.15 mm.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH01138/10A CH703430A1 (en) | 2010-07-13 | 2010-07-13 | Method for adjusting the rotor position in a gas turbine or steam turbine. |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2407646A1 EP2407646A1 (en) | 2012-01-18 |
EP2407646B1 true EP2407646B1 (en) | 2017-04-05 |
EP2407646B8 EP2407646B8 (en) | 2017-08-02 |
Family
ID=42953773
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11171322.8A Active EP2407646B8 (en) | 2010-07-13 | 2011-06-24 | Method and device for adjusting the position of the rotor assembly of a gas or steam turbine |
Country Status (3)
Country | Link |
---|---|
US (1) | US8998578B2 (en) |
EP (1) | EP2407646B8 (en) |
CH (1) | CH703430A1 (en) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH703430A1 (en) * | 2010-07-13 | 2012-01-13 | Alstom Technology Ltd | Method for adjusting the rotor position in a gas turbine or steam turbine. |
DE102012202468B3 (en) | 2012-02-17 | 2013-07-04 | Siemens Aktiengesellschaft | turbomachinery |
US9046004B2 (en) | 2012-02-28 | 2015-06-02 | General Electric Company | Compression sleeve seal |
JP5881474B2 (en) * | 2012-03-02 | 2016-03-09 | 三菱日立パワーシステムズ株式会社 | Assembly / disassembly jig for gas turbine casing, gas turbine provided with the same, assembly method and disassembly method for gas turbine casing |
FR2998546B1 (en) * | 2012-11-23 | 2016-01-01 | Airbus Operations Sas | AIRCRAFT NACELLE INCORPORATING AN IMPROVED CONNECTION BETWEEN AN AIR INLET AND A MOTORIZATION |
US9441498B2 (en) | 2013-10-30 | 2016-09-13 | Siemens Energy, Inc. | Process and tool for aligning a seal housing assembly with a casing of a gas turbine engine |
US10502235B2 (en) * | 2013-11-06 | 2019-12-10 | United Technologies Corporation | Method for tight control of bolt holes in fan assembly |
WO2015125239A1 (en) * | 2014-02-19 | 2015-08-27 | 三菱重工コンプレッサ株式会社 | Rotation system |
CN107532481A (en) * | 2015-04-24 | 2018-01-02 | 诺沃皮尼奥内技术股份有限公司 | Gas-turbine unit with the housing provided with cooling fins |
EP3284919A1 (en) * | 2016-08-16 | 2018-02-21 | General Electric Technology GmbH | Axial flow turbine having a diaphragm split in two halves at a joint plane |
JP6694837B2 (en) * | 2017-02-27 | 2020-05-20 | 三菱日立パワーシステムズ株式会社 | Steam turbine |
CN109630217B (en) * | 2018-12-10 | 2020-03-17 | 西安交通大学 | Connecting structure for self-adjusting fastening force of split surface in cylinder |
KR102361717B1 (en) * | 2020-09-11 | 2022-02-09 | 두산중공업 주식회사 | Vibration control apparatus and gas turbine including the same |
US11542830B2 (en) | 2020-09-11 | 2023-01-03 | Doosan Enerbility Co., Ltd. | Vibration damper, exhaust diffuser system, and gas turbine including same |
CN114135348B (en) * | 2021-11-11 | 2024-01-19 | 河北国源电气股份有限公司 | Adjustable integrated type holding ring for steam turbine |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5227282B2 (en) * | 1970-11-05 | 1977-07-19 | ||
DE2619929A1 (en) * | 1975-05-06 | 1976-11-18 | Rolls Royce 1971 Ltd | DEVICE FOR MUTUAL POSITIONING OF TWO COMPONENTS, IN PARTICULAR IN GAS TURBINE ENGINES |
US4222708A (en) * | 1978-06-26 | 1980-09-16 | General Electric Company | Method and apparatus for reducing eccentricity in a turbomachine |
CH639171A5 (en) * | 1979-07-20 | 1983-10-31 | Sulzer Ag | Stator for at least one part of a multi-stage axial flow turbo-engine |
DE3621125A1 (en) * | 1986-06-24 | 1988-01-07 | Kloeckner Humboldt Deutz Ag | HOUSING CENTERING |
US4734009A (en) * | 1987-03-30 | 1988-03-29 | Westinghouse Electric Corp. | Method and apparatus for aligning turbine rotors |
US5402631A (en) | 1991-05-10 | 1995-04-04 | Praxair Technology, Inc. | Integration of combustor-turbine units and integral-gear pressure processors |
DE4446610A1 (en) | 1994-12-24 | 1996-06-27 | Abb Management Ag | Process for operating a gas turbine group |
US6309177B1 (en) * | 1999-06-08 | 2001-10-30 | Pratt & Whitney Canada Corp. | Concentricity ring |
US7329098B2 (en) * | 2005-05-06 | 2008-02-12 | Geenral Electric Company | Adjustable support bar with adjustable shim design for steam turbine diaphragms |
US7419355B2 (en) * | 2006-02-15 | 2008-09-02 | General Electric Company | Methods and apparatus for nozzle carrier with trapped shim adjustment |
DE602006009537D1 (en) * | 2006-12-27 | 2009-11-12 | Techspace Aero Milmort | System for connecting two roughly tubular elements, housing comprising such a system, and use of this system |
US8142150B2 (en) * | 2009-03-06 | 2012-03-27 | General Electric Company | Alignment device for gas turbine casings |
CH703430A1 (en) * | 2010-07-13 | 2012-01-13 | Alstom Technology Ltd | Method for adjusting the rotor position in a gas turbine or steam turbine. |
US8690533B2 (en) * | 2010-11-16 | 2014-04-08 | General Electric Company | Adjustment and measurement system for steam turbine nozzle assembly |
EP2551473A1 (en) * | 2011-07-27 | 2013-01-30 | Alstom Technology Ltd | Device for the mutual fixation of two gas turbine casing components |
-
2010
- 2010-07-13 CH CH01138/10A patent/CH703430A1/en not_active Application Discontinuation
-
2011
- 2011-06-24 EP EP11171322.8A patent/EP2407646B8/en active Active
- 2011-07-11 US US13/179,819 patent/US8998578B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US8998578B2 (en) | 2015-04-07 |
EP2407646B8 (en) | 2017-08-02 |
EP2407646A1 (en) | 2012-01-18 |
CH703430A1 (en) | 2012-01-13 |
US20120039709A1 (en) | 2012-02-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2407646B1 (en) | Method and device for adjusting the position of the rotor assembly of a gas or steam turbine | |
DE102006007088A1 (en) | Turbine casing construction has eccentric shaft installed in connecting hole formed in outer casing, with front end in contact with sleeve installed in concave section in inner casing | |
EP2619421B1 (en) | Rotor for a camshaft adjuster, and camshaft adjusting system | |
EP1320690B1 (en) | Collar bearing with a centring device | |
DE102006004613A1 (en) | Gas turbine comprises rotor blades having overhang sections formed in an annular manner around an axis of rotation, sealing structures provide in groove sections and retaining elements | |
DE102008002852B4 (en) | Support rail with adjustable disc arrangement for turbine cover discs | |
DE102010016990A1 (en) | System and method for generator stator mounting | |
DE102010060284A1 (en) | Fuse spacer assembly for an airfoil mounting system for insertion in the circumferential direction | |
EP1933038B1 (en) | Casing for turbomachine | |
WO2014037523A1 (en) | Method for assembling and disassembling a rotor having a number of rotor components of an axial flow turbomachine and such a rotor | |
EP2194230A1 (en) | Guide blade assembly for an axial turbo engine | |
EP3176386B1 (en) | Inner shroud assembly, corresponding inner shroud, inner casing and turbomachine | |
EP3524778A1 (en) | Lever connection of a guide vane adjustment for turbomachines and associated method of manufacturing | |
EP0211198A1 (en) | Support for a steam turbine | |
DE102015121541B4 (en) | Housing support block for a steam turbine guide device | |
EP3857037B1 (en) | Device and method for adjusting the length of a connecting rod of a cylinder of an internal combustion engine | |
EP2488726B1 (en) | Steam turbine with seal assembly comprising an adjustable seal ring on the steam turbine casing | |
DE112013001118B4 (en) | bearing device | |
DE19544165C2 (en) | Universal sliding elements for retrofitting housing supports without dismantling | |
WO2018157958A1 (en) | Turbine stage having a coupling element | |
EP2886799A1 (en) | Blade ring for a turbomachine and method for mounting blades of a blade ring of a turbomachine | |
WO2011045128A1 (en) | Sealing assembly on a steam turbine housing, comprising a fixable sealing ring | |
WO2010102950A2 (en) | Device for vertically and horizontally positioning guide vane supports in the turbine housing in the installed state | |
EP2873808B1 (en) | Rotor-blade group, method and flow engine | |
EP3710396A1 (en) | Tool for disassembling and assembling bearings and method for replacing a bearing |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20120629 |
|
17Q | First examination report despatched |
Effective date: 20150209 |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: GENERAL ELECTRIC TECHNOLOGY GMBH |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
INTG | Intention to grant announced |
Effective date: 20161018 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: REF Ref document number: 882040 Country of ref document: AT Kind code of ref document: T Effective date: 20170415 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: LANGUAGE OF EP DOCUMENT: GERMAN |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 502011011971 Country of ref document: DE |
|
RAP2 | Party data changed (patent owner data changed or rights of a patent transferred) |
Owner name: ANSALDO ENERGIA IP UK LIMITED |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20170620 Year of fee payment: 7 |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: MP Effective date: 20170405 |
|
REG | Reference to a national code |
Ref country code: LT Ref legal event code: MG4D |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20170405 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20170405 Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20170405 Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20170405 Ref country code: NO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20170705 Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20170706 Ref country code: HR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20170405 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BG Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20170705 Ref country code: RS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20170405 Ref country code: PL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20170405 Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20170805 Ref country code: LV Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20170405 Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20170405 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 502011011971 Country of ref document: DE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MC Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20170405 Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20170405 Ref country code: CZ Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20170405 Ref country code: RO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20170405 Ref country code: EE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20170405 Ref country code: SK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20170405 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SM Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20170405 |
|
26N | No opposition filed |
Effective date: 20180108 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: MM4A |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20180228 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20170624 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20170630 Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20170630 Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20170624 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20170405 Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20170630 |
|
REG | Reference to a national code |
Ref country code: BE Ref legal event code: MM Effective date: 20170630 |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: MM01 Ref document number: 882040 Country of ref document: AT Kind code of ref document: T Effective date: 20170624 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20170630 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20170405 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20170624 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20180624 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20180624 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: HU Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO Effective date: 20110624 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CY Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20170405 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20170405 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: TR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20170405 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20170405 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20170405 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20231124 Year of fee payment: 13 |
|
P01 | Opt-out of the competence of the unified patent court (upc) registered |
Effective date: 20240430 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20240617 Year of fee payment: 14 |