EP0707150A2 - Compression - Google Patents

Compression Download PDF

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Publication number
EP0707150A2
EP0707150A2 EP95810613A EP95810613A EP0707150A2 EP 0707150 A2 EP0707150 A2 EP 0707150A2 EP 95810613 A EP95810613 A EP 95810613A EP 95810613 A EP95810613 A EP 95810613A EP 0707150 A2 EP0707150 A2 EP 0707150A2
Authority
EP
European Patent Office
Prior art keywords
bolts
housing
groups
guide vanes
guide
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP95810613A
Other languages
German (de)
French (fr)
Other versions
EP0707150B1 (en
EP0707150A3 (en
Inventor
Ivan Luketic
Alfred Krähenbühl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
General Electric Switzerland GmbH
Original Assignee
ABB Management AG
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Filing date
Publication date
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Publication of EP0707150A2 publication Critical patent/EP0707150A2/en
Publication of EP0707150A3 publication Critical patent/EP0707150A3/en
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Publication of EP0707150B1 publication Critical patent/EP0707150B1/en
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Classifications

    • 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
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/54—Fluid-guiding means, e.g. diffusers
    • F04D29/541—Specially adapted for elastic fluid pumps
    • F04D29/542—Bladed diffusers
    • 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
    • F01D9/00—Stators
    • F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
    • F01D9/04—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector
    • F01D9/042—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector fixing blades to stators

Definitions

  • the invention relates to a compressor with an axially divided housing, consisting of several housing halves, in which the guide vanes are fastened with their feet in circumferential grooves.
  • Such compressors are known. Intermediate pieces are usually arranged between the guide vane feet. When the compressor is operating, the air is heated by the compression. The compressed air gives off heat to the spacers and blade material, causing them to expand. In order to avoid the stress in the blade root area resulting from thermal expansion, which can lead to material defects, the guide blades and the spacers are inserted with play in the housing. When installing the blades in the housing, paper intermediate layers are placed between the blade feet in order to distribute the play evenly over the circumference. Some intermediate pieces are fixed by documents placed under the intermediate pieces. The paper liners burn when the compressor is operating. If the gas turbine group is switched off and started again, the fixation of the spacers loosen due to vibrations. As a result, the guide vanes can slide together when cooled.
  • the blades are installed in the axially split housing at the installation site of the compressor. Due to the inaccuracy that results from the summation of the manufacturing tolerances of the individual elements, as well as the play distribution with paper intermediate layers, the elements that are at the parting plane of the housing can only be machined exactly at the place of installation.
  • the guide vanes with paper intermediate layers are installed in the housing, the protruding, final elements lying on the parting plane are milled over and holes are drilled for fastening the final elements. In order to remove chips and dirt, all elements must be removed again. After cleaning, the elements are reinstalled exactly as in the first installation step. This means a lot of work and therefore high costs.
  • the invention has for its object to simplify the installation of the guide vanes in the compressor housing in a compressor of the type mentioned.
  • this is achieved in that bolts anchored over the circumference in the groove base of the circumferential groove are inserted, which preferably protrude radially into the circumferential groove and which subdivide the guide vanes into groups and end groups located on the parting plane of the housing.
  • the advantages of the invention can be seen, inter alia, in the fact that the position of the bolts is precisely known and that the individual sums of the manufacturing tolerances of the groups can be determined with sufficient accuracy.
  • the bolts also distribute the play evenly over the circumference of the housing.
  • the play of the individual groups is easily adjustable. Post-processing is no longer necessary when installing the groups in the housing, which considerably reduces the workload.
  • the compressor housing 21 consists of a lower housing half 21a and an upper housing half 21b, with an axial parting plane 20.
  • the guide vanes are each spacers 4.
  • the intermediate pieces 4 can be differentiated into intermediate pieces 4a without cutouts and intermediate pieces 4b with cutouts 11. These cutouts 11 serve to receive bolts 8.
  • the groups A2-A5 are identical in terms of the number of intermediate pieces 4 and guide vanes 1. With regard to the design and arrangement of the intermediate pieces 4, the groups A2 and A4 and the groups A3 and A5 are identical.
  • the end groups A6 and A7 adjoining the parting plane 20 are designed with divided intermediate pieces 6 and 7. In order to be able to fasten these divided intermediate pieces 6 and 7 in the circumferential groove 10, they are connected to the subsequent guide vane 1 and the intermediate piece 4b with screws 12 and pins, not shown.
  • the final groups A6 and A7 are then processed in the factory in such a way that no further processing steps are necessary during assembly on site.
  • the blade root 3a of the guide blade 1 is also modified.
  • the end groups A6 and A7 are fixed in the housing 21 by means of the head of anchoring screws 9.
  • the housing In order to install the guide vanes 1 in the housing 21, the housing is opened along the parting plane 20 via flanges, not shown.
  • the upper housing half 21b is in the axial direction rotated by one hundred and eighty degrees and arranged next to the lower housing half 21a. Due to the rotational symmetry of the housing 21, the installation of groups A1-A7 is identical for both housing halves 21a and 21b. Therefore, only the lower housing half 21a is described below.
  • the guide vanes 1 and intermediate pieces 4 of group A1 are inserted into the circumferential groove 10 in accordance with the position in FIG. 1.
  • a bolt 8 is pressed into the predrilled blind holes 5 on both sides.
  • an intermediate piece 4b with a recess 8 is inserted into the circumferential groove 10 on both sides of group A1, as well as the guide vanes 1 and intermediate pieces 4 belonging to groups A2 and A3.
  • a bolt 8 is anchored and then groups A4 and A5 inserted into the circumferential groove.
  • the end groups A6 and A7 are pushed in as a unit and fixed with the anchoring screws 9 in the lower housing half 21a.
  • the end groups A6 and A7 are manufactured with a negative tolerance so that they do not protrude beyond the parting plane 20.
  • possibly further rows of guide vanes are installed, in which case the number of guide vanes can vary.
  • the rotor (not shown) with the rotor blades is inserted into the lower housing half 21a.
  • the upper housing half 21b is rotated back into its original position and connected to the lower housing half 21a.
  • the guide vanes can also be installed without intermediate pieces, in which case recesses for receiving the bolts must then be provided in the correspondingly larger blade roots.
  • the number of bolts, and therefore the groups of Guide blades takes place according to the desired division of play and based on the manufacturing tolerances.
  • the design of the bolts is arbitrary.
  • the groups can also have a different number of guide vanes among one another. Of course, a multiple division of the housing is also possible, the number of termination groups then increasing.
  • the end group can also be connected by methods other than screwing and pinning.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

Bolts (8) are anchored in the bases of the peripheral grooves (10) into which they extend radially. The bolts divide the guide blades (1) into groups (A4,A5) and on the dividing plane (20) of the housing into final groups (A6,A7). The guide blade feet (3) adjoining the bolts are provided with recesses for accommodation of the bolts. In the peripheral grooves between the guide blade feet intermediate pieces are arranged, and those pieces adjoining the bolts are provided with recesses for accommodation of the bolts. The final groups comprises at least one guide blade and one divided intermediate piece (6,7) which are joined to one another by fixtures.

Description

Technisches GebietTechnical field

Die Erfindung betrifft einen Verdichter mit axial geteiltem Gehäuse, bestehend aus mehreren Gehäusehälften, in welchem die Leitschaufeln mit ihren Füssen in Umfangsnuten befestigt sind.The invention relates to a compressor with an axially divided housing, consisting of several housing halves, in which the guide vanes are fastened with their feet in circumferential grooves.

Stand der TechnikState of the art

Derartige Verdichter sind bekannt. Ueblicherweise sind zwischen den Leitschaufelfüssen Zwischenstücke angeordnet. Bei Betrieb des Verdichters wird die Luft durch die Kompression erwärmt. Die komprimierte Luft gibt Wärme an die Zwischenstücke und das Schaufelmaterial ab, wodurch sich diese ausdehnen. Um die aus der Wärmedehnung resultierende Spannungen im Schaufelfussbereich, die zu Materialdefekten führen können, zu vermeiden, werden die Leitschaufeln und die Zwischenstücke mit Spiel im Gehäuse eingesetzt. Beim Einbau der Schaufeln ins Gehäuse werden Papierzwischenlagen zwischen die Schaufelfüsse gelegt, um das Spiel gleichmässig auf den Umfang zu verteilen. Einige Zwischenstücke werden durch unter die Zwischenstücke eingelegte Unterlagen fixiert. Bei Betrieb des Verdichters verbrennen die Zwischenlagen aus Papier. Wird die Gasturbogruppe abgestellt und wieder angefahren, kann sich die Fixierung der Zwischenstücke durch Vibrationen lockern. Dadurch können die Leitschaufeln im abgekühlten Zustand zusammenrutschen.Such compressors are known. Intermediate pieces are usually arranged between the guide vane feet. When the compressor is operating, the air is heated by the compression. The compressed air gives off heat to the spacers and blade material, causing them to expand. In order to avoid the stress in the blade root area resulting from thermal expansion, which can lead to material defects, the guide blades and the spacers are inserted with play in the housing. When installing the blades in the housing, paper intermediate layers are placed between the blade feet in order to distribute the play evenly over the circumference. Some intermediate pieces are fixed by documents placed under the intermediate pieces. The paper liners burn when the compressor is operating. If the gas turbine group is switched off and started again, the fixation of the spacers loosen due to vibrations. As a result, the guide vanes can slide together when cooled.

Die Schaufeln werden jeweils am Errichtungsort des Verdichters ins axial geteilte Gehäuse eingebaut. Bedingt durch die Ungenauigkeit, die aus der Summation der Fertigungstoleranzen der einzelnen Elemente folgt, sowie durch die Spielverteilung mit Papierzwischenlagen, können die Elemente, die an der Trennebene des Gehäuses liegen, erst am Errichtungsort exakt bearbeitet werden. Dazu werden die Leitschaufeln mit Papierzwischenlagen ins Gehäuse eingebaut, die an der Trennebene liegenden, vorstehenden, abschliessenden Elemente überfräst und Löcher zur Befestigung der abschliessenden Elemente gebohrt. Um Späne und Dreck zu entfernen, müssen alle Elemente wieder ausgebaut werden. Nach der Reinigung werden die Elemente genau gleich wie beim ersten Einbauschritt wieder eingebaut. Dies bedeutet einen hohen Arbeitsaufwand und damit hohe Kosten.The blades are installed in the axially split housing at the installation site of the compressor. Due to the inaccuracy that results from the summation of the manufacturing tolerances of the individual elements, as well as the play distribution with paper intermediate layers, the elements that are at the parting plane of the housing can only be machined exactly at the place of installation. For this purpose, the guide vanes with paper intermediate layers are installed in the housing, the protruding, final elements lying on the parting plane are milled over and holes are drilled for fastening the final elements. In order to remove chips and dirt, all elements must be removed again. After cleaning, the elements are reinstalled exactly as in the first installation step. This means a lot of work and therefore high costs.

Darstellung der ErfindungPresentation of the invention

Der Erfindung liegt die Aufgabe zugrunde, bei einem Verdichter der eingangs genannten Art den Einbau der Leitschaufeln ins Verdichtergehäuse zu vereinfachen.The invention has for its object to simplify the installation of the guide vanes in the compressor housing in a compressor of the type mentioned.

Erfindungsgemäss wird dies dadurch erreicht, dass über den Umfang verteilt im Nutgrund der Umfangsnut verankerte Bolzen eingebracht sind, welche vorzugsweise radial in die Umfangsnut hineinragen und welche die Leitschaufeln in Gruppen und an der Trennebene des Gehäuses liegende Abschluss-Gruppen unterteilen.According to the invention, this is achieved in that bolts anchored over the circumference in the groove base of the circumferential groove are inserted, which preferably protrude radially into the circumferential groove and which subdivide the guide vanes into groups and end groups located on the parting plane of the housing.

Die Vorteile der Erfindung sind unter anderem darin zu sehen, dass die Position der Bolzen genau bekannt ist, und dass die Einzelsummen der Fertigungstoleranzen der Gruppen genügend genau bestimmt werden kann. Weiter verteilen die Bolzen das Spiel gleichmässig über den Umfang des Gehäuses. Das Spiel der einzelnen Gruppen ist einfach einstellbar. Beim Einbau der Gruppen ins Gehäuse sind keine Nachbearbeitungen mehr nötig, was den Arbeitsaufwand erheblich senkt.The advantages of the invention can be seen, inter alia, in the fact that the position of the bolts is precisely known and that the individual sums of the manufacturing tolerances of the groups can be determined with sufficient accuracy. The bolts also distribute the play evenly over the circumference of the housing. The play of the individual groups is easily adjustable. Post-processing is no longer necessary when installing the groups in the housing, which considerably reduces the workload.

Es ist besonders zweckmässig, wenn die an der Trennebene des Gehäuses liegende Abschluss-Gruppe bereits im Werk vorgefertigt und auf das erforderliche Mass bearbeitet wird.It is particularly expedient if the end group lying on the parting plane of the housing is already prefabricated in the factory and machined to the required size.

Kurze Beschreibung der ZeichnungBrief description of the drawing

In der Zeichnung ist ein Ausführungsbeispiel der Erfindung anhand eines axial durchströmten Verdichters dargestellt. Es zeigen:

Fig. 1
einen schematischen Querschnitt durch ein Verdichtergehäuse;
Fig. 2
das vergrösserte Detail II aus Fig.1;
Fig. 3
die teilweise Abwicklung einer Leitschaufelreihe im Bereich des Details II aus Fig.1.
In the drawing, an embodiment of the invention is shown using an axially flowing compressor. Show it:
Fig. 1
a schematic cross section through a compressor housing;
Fig. 2
the enlarged detail II from Fig.1;
Fig. 3
the partial development of a row of guide vanes in the area of detail II from FIG. 1.

Es sind nur die für das Verständnis der Erfindung wesentlichen Elemente gezeigt. Nicht dargestellt sind von der Anlage beispielsweise der Rotor mit den Laufschaufeln.Only the elements essential for understanding the invention are shown. The system, for example, does not show the rotor with the rotor blades.

Weg zur Ausführung der ErfindungWay of carrying out the invention

Gemäss Fig. 1 besteht das Verdichtergehäuse 21 aus einer unteren Gehäusehälfte 21a und einer oberen Gehäusehälfte 21b, mit einer axialen Trennebene 20. Nach Fig. 2 sind im Gehäuse 21 in umlaufenden Umfangsnuten 10 Leitschaufeln 1 eingesetzt, bestehend aus Schaufelblatt 2 und Schaufelfuss 3. Zwischen den Leitschaufeln sind jeweils Zwischenstücke 4 angeordnet. Die Zwischenstücke 4 können unterschieden werden in Zwischenstücke 4a ohne Aussparungen und Zwischenstücke 4b mit Aussparungen 11. Diese Aussparungen 11 dienen zur Aufnahme von Bolzen 8. Durch die Bolzen 8, die im Gehäuse 21 in Sacklöchern 5 verankert sind, werden die Leitschaufeln und die Zwischenstücke in Gruppen A1-A7 unterteilt. Die Gruppen A2-A5 sind bezüglich der Anzahl der Zwischenstücke 4 und Leitschaufeln 1 identisch. Bezüglich der Ausführung und der Anordnung der Zwischenstücke 4 sind die Gruppen A2 und A4 und die Gruppen A3 und A5 identisch.According to FIG. 1, the compressor housing 21 consists of a lower housing half 21a and an upper housing half 21b, with an axial parting plane 20. According to FIG the guide vanes are each spacers 4. The intermediate pieces 4 can be differentiated into intermediate pieces 4a without cutouts and intermediate pieces 4b with cutouts 11. These cutouts 11 serve to receive bolts 8. The bolts 8, which are anchored in the housing 21 in blind holes 5, guide the guide vanes and the intermediate pieces in Groups A1-A7 divided. The groups A2-A5 are identical in terms of the number of intermediate pieces 4 and guide vanes 1. With regard to the design and arrangement of the intermediate pieces 4, the groups A2 and A4 and the groups A3 and A5 are identical.

Gemäss Fig. 3 sind die an die Trennebene 20 anschliessenden Abschluss-Gruppen A6 und A7 mit geteilten Zwischenstücken 6 und 7 ausgestaltet. Um diese geteilten Zwischenstücke 6 und 7 in der Umfangsnut 10 befestigen zu können, sind sie mit der anschliessenden Leitschaufel 1 und dem Zwischenstück 4b mit Schrauben 12 und nicht dargestellten Stiften verbunden. Die Abschluss-Gruppen A6 und A7 werden im Werk danach so bearbeitet, dass bei der Montage vor Ort keine weiteren Bearbeitungsschritte mehr nötig sind. Bei der Abschluss-Gruppe A7 wird dabei auch der Schaufelfuss 3a der Leitschaufel 1 abgeändert. Die Abschluss-Gruppen A6 und A7 werden im Gehäuse 21 mit Hilfe des Kopfes von Verankerungs-Schrauben 9 fixiert.According to FIG. 3, the end groups A6 and A7 adjoining the parting plane 20 are designed with divided intermediate pieces 6 and 7. In order to be able to fasten these divided intermediate pieces 6 and 7 in the circumferential groove 10, they are connected to the subsequent guide vane 1 and the intermediate piece 4b with screws 12 and pins, not shown. The final groups A6 and A7 are then processed in the factory in such a way that no further processing steps are necessary during assembly on site. In the final group A7, the blade root 3a of the guide blade 1 is also modified. The end groups A6 and A7 are fixed in the housing 21 by means of the head of anchoring screws 9.

Um die Leitschaufeln 1 im Gehäuse 21 einzubauen wird das Gehäuse entlang der Trennebene 20 über nicht gezeigte Flansche geöffnet. Die obere Gehäusehälfte 21b wird in Axialrichtung um hundertachtzig Grad gedreht und neben der unteren Gehäusehälfte 21a angeordnet. Bedingt durch die Rotationssymmetrie des Gehäuses 21 ist der Einbau der Gruppen A1-A7 für beide Gehäusehälften 21a und 21b identisch. Daher wird im weiteren nur noch die untere Gehäusehälfte 21a beschrieben. Zuerst werden die Leitschaufeln 1 und Zwischenstücke 4 der Gruppe A1 entsprechend der Position in Fig. 1 in die Umfangsnut 10 eingeschoben. Auf beiden Seiten wird je ein Bolzen 8 in die vorgebohrte Sacklöcher 5 eingepresst. Dann wird auf beiden Seiten der Gruppe A1 je ein Zwischenstück 4b mit Aussparung 8 in die Umfangsnut 10 eingeschoben, sowie die zu den Gruppen A2 und A3 gehörenden Leitschaufeln 1 und Zwischenstücke 4. Wieder wird je ein Bolzen 8 verankert und danach die Gruppen A4 und A5 in die Umfangsnut eingeschoben. Dann folgt wieder die Verankerung je eines Bolzens 8 im Gehäuse 21a. Die Abschluss-Gruppen A6 und A7 werden als Einheit eingeschoben und mit den Verankerungsschrauben 9 in der unteren Gehäusehälfte 21a fixiert. Die Abschluss-Gruppen A6 und A7 sind mit einer negativen Toleranz gefertigt, so dass sie nicht über die Trennebene 20 vorstehen.
Entsprechend erfolgt der Einbau eventuell weiterer, nicht dargestellter Leitschaufelreihen, wobei dann die Anzahl der Leitschaufeln variieren kann. Nach dem Einbau aller Leitschaufeln 1 und Zwischenstücke 4, wird der nicht dargestellte Rotor mit den Laufschaufeln in die untere Gehäusehälfte 21a eingelegt. Die obere Gehäusehälfte 21b wird wieder in ihre ursprüngliche Position gedreht und mit der unteren Gehäusehälfte 21a verbunden.In order to install the guide vanes 1 in the housing 21, the housing is opened along the parting plane 20 via flanges, not shown. The upper housing half 21b is in the axial direction rotated by one hundred and eighty degrees and arranged next to the lower housing half 21a. Due to the rotational symmetry of the housing 21, the installation of groups A1-A7 is identical for both housing halves 21a and 21b. Therefore, only the lower housing half 21a is described below. First, the guide vanes 1 and intermediate pieces 4 of group A1 are inserted into the circumferential groove 10 in accordance with the position in FIG. 1. A bolt 8 is pressed into the predrilled blind holes 5 on both sides. Then an intermediate piece 4b with a recess 8 is inserted into the circumferential groove 10 on both sides of group A1, as well as the guide vanes 1 and intermediate pieces 4 belonging to groups A2 and A3. Again a bolt 8 is anchored and then groups A4 and A5 inserted into the circumferential groove. Then there is again the anchoring of a bolt 8 in the housing 21a. The end groups A6 and A7 are pushed in as a unit and fixed with the anchoring screws 9 in the lower housing half 21a. The end groups A6 and A7 are manufactured with a negative tolerance so that they do not protrude beyond the parting plane 20.
Correspondingly, possibly further rows of guide vanes (not shown) are installed, in which case the number of guide vanes can vary. After all guide vanes 1 and intermediate pieces 4 have been installed, the rotor (not shown) with the rotor blades is inserted into the lower housing half 21a. The upper housing half 21b is rotated back into its original position and connected to the lower housing half 21a.

Selbstverständlich ist die Erfindung nicht auf das gezeigte und beschriebene Ausführungsbeispiel beschränkt. Die Leitschaufeln können auch ohne Zwischenstücke eingebaut werden, wobei dann in den entsprechend grösser bemessenen Schaufelfüssen Aussparungen zur Aufnahme der Bolzen vorgesehen werden müssen. Die Anzahl der Bolzen, und damit der Gruppen von Leitschaufeln, erfolgt nach gewünschter Spielaufteilung und aufgrund der Fertigungstoleranzen. Die Ausgestaltung der Bolzen ist beliebig. Auch können die Gruppen untereinander eine verschiedene Anzahl von Leitschaufeln aufweisen. Natürlich ist auch eine mehrfache Teilung des Gehäuses möglich, wobei sich dann die Anzahl der Abschluss-Gruppen erhöht. Die Verbindung der Abschluss-Gruppe kann auch durch andere Methoden als durch Verschraubung und Verstiftung erfolgen.Of course, the invention is not limited to the exemplary embodiment shown and described. The guide vanes can also be installed without intermediate pieces, in which case recesses for receiving the bolts must then be provided in the correspondingly larger blade roots. The number of bolts, and therefore the groups of Guide blades, takes place according to the desired division of play and based on the manufacturing tolerances. The design of the bolts is arbitrary. The groups can also have a different number of guide vanes among one another. Of course, a multiple division of the housing is also possible, the number of termination groups then increasing. The end group can also be connected by methods other than screwing and pinning.

BezugszeichenlisteReference list

11
Leitschaufelvane
22nd
SchaufelblattAirfoil
33rd
SchaufelfussBlade root
3a3a
abgeänderter Schaufelfussmodified blade root
44th
ZwischenstückeSpacers
4a4a
Zwischenstück ohne AussparungIntermediate piece without recess
4b4b
Zwischenstück mit AussparungIntermediate piece with recess
55
SacklochBlind hole
66
geteiltes Zwischenstückdivided intermediate piece
77
geteiltes Zwischenstückdivided intermediate piece
88th
Bolzenbolt
99
Verankerungs-SchraubeAnchoring screw
1010th
UmfangsnutCircumferential groove
1111
AussparungRecess
1212th
Schraubescrew
2020th
TrennebeneDividing plane
2121
Gehäusecasing
21a21a
untere Gehäusehälftelower case half
21b21b
obere Gehäusehälfteupper half of the housing
A1-A5A1-A5
Gruppen von Leitschaufeln mit ZwischenstückenGroups of guide vanes with spacers
A6, A7A6, A7
Abschluss-GruppenGraduation groups

Claims (5)

Verdichter mit axial geteiltem Gehäuse (21), bestehend aus mehreren Gehäusehälften (21a, 21b), in welchem die Leitschaufeln (1) mit ihren Füssen (3) in Umfangsnuten (10) befestigt sind,
dadurch gekennzeichnet, dass
über den Umfang verteilt im Nutgrund der Umfangsnut (10) verankerte Bolzen (8) eingebracht sind, welche vorzugsweise radial in die Umfangsnut (10) hineinragen und welche die Leitschaufeln (1) in Gruppen (A1-A5) und an der Trennebene (20) des Gehäuses (21) liegende Abschluss-Gruppen (A6, A7) unterteilen.Compressor with an axially divided housing (21), consisting of a plurality of housing halves (21a, 21b), in which the guide vanes (1) are fastened with their feet (3) in circumferential grooves (10),
characterized in that
Bolts (8) anchored over the circumference distributed in the groove base of the circumferential groove (10), which preferably protrude radially into the circumferential groove (10) and which guide vanes (1) in groups (A1-A5) and on the parting plane (20) Subdivide the end groups (A6, A7) of the housing (21). Verdichter nach Anspruch 1, dadurch gekennzeichnet, dass die an die Bolzen (8) angrenzenden Leitschaufelfüsse (3) mit Aussparungen (11) zur Aufnahme der Bolzen (8) versehen sind.Compressor according to claim 1, characterized in that the guide vane feet (3) adjoining the bolts (8) are provided with cutouts (11) for receiving the bolts (8). Verdichter nach Anspruch 1, dadurch gekennzeichnet, dass in der Umfangsnut (10) zwischen den Leitschaufelfüssen (3) Zwischenstücke (4) angeordnet sind, wobei die an die Bolzen (8) angrenzenden Zwischenstücke (4) mit Aussparungen (11) zur Aufnahme der Bolzen (8) versehen sind.Compressor according to claim 1, characterized in that intermediate pieces (4) are arranged in the circumferential groove (10) between the guide vane feet (3), the intermediate pieces (4) adjoining the bolts (8) having recesses (11) for receiving the bolts (8) are provided. Verdichter nach Anspruch 3, dadurch gekennzeichnet, dass die Abschluss-Gruppen (A6, A7) aus mindestens einer Leitschaufel (1) und einem geteilten Zwischenstück (6, 7) bestehen, die durch Befestigungsmittel (12) miteinander verbunden sind.Compressor according to claim 3, characterized in that the end groups (A6, A7) consist of at least one guide vane (1) and a divided intermediate piece (6, 7) which are connected to one another by fastening means (12). Verdichter nach Anspruch 1, dadurch gekennzeichnet, dass die Abschluss-Gruppen (A6, A7) mit Verankerungsschrauben (9) im Gehäuse (21) befestigt sind.Compressor according to claim 1, characterized in that the end groups (A6, A7) are fastened in the housing (21) with anchoring screws (9).
EP95810613A 1994-10-14 1995-10-03 Compressor Expired - Lifetime EP0707150B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4436731 1994-10-14
DE4436731A DE4436731A1 (en) 1994-10-14 1994-10-14 compressor

Publications (3)

Publication Number Publication Date
EP0707150A2 true EP0707150A2 (en) 1996-04-17
EP0707150A3 EP0707150A3 (en) 1998-01-07
EP0707150B1 EP0707150B1 (en) 2002-08-28

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EP95810613A Expired - Lifetime EP0707150B1 (en) 1994-10-14 1995-10-03 Compressor

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US (1) US5575621A (en)
EP (1) EP0707150B1 (en)
JP (1) JP4043537B2 (en)
CN (1) CN1057820C (en)
DE (2) DE4436731A1 (en)

Cited By (5)

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Publication number Priority date Publication date Assignee Title
EP1674734A1 (en) * 2004-12-21 2006-06-28 ALSTOM Technology Ltd Method for improving the flow stability of a turbo compressor
WO2008101473A1 (en) * 2007-02-24 2008-08-28 Mtu Aero Engines Gmbh Compressor of a gas turbine
EP2163728A2 (en) * 2008-09-11 2010-03-17 General Electric Company Load pin for compressor square base stator and method of use
EP1965028A3 (en) * 2007-02-27 2010-11-24 General Electric Company Apparatus for assembling blade shims
FR2948736A1 (en) * 2009-07-31 2011-02-04 Snecma EXTERNAL VIROLE SECTOR FOR AIRBORNE TURBOMACHINE AIRBORNE STATOR CROWN, COMPRISING SHOCK ABSORBING MOUNTS

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DE19643716A1 (en) * 1996-10-23 1998-04-30 Asea Brown Boveri Blade carrier for a compressor
DE59906856D1 (en) 1999-02-12 2003-10-09 Alstom Switzerland Ltd Fastening rotor blades of a flow machine
EP1548232A1 (en) * 2003-12-23 2005-06-29 Siemens Aktiengesellschaft Turbomachine comprising a stator vane support and method of mounting stator vanes to the stator vane support
JP5980405B1 (en) * 2015-12-24 2016-08-31 三菱日立パワーシステムズ株式会社 Wing removal method, apparatus and jig for performing this method, and wing set provided with this apparatus

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1674734A1 (en) * 2004-12-21 2006-06-28 ALSTOM Technology Ltd Method for improving the flow stability of a turbo compressor
WO2006067025A1 (en) * 2004-12-21 2006-06-29 Alstom Technology Ltd Method for modifying a turbocompressor
WO2008101473A1 (en) * 2007-02-24 2008-08-28 Mtu Aero Engines Gmbh Compressor of a gas turbine
US8333553B2 (en) 2007-02-24 2012-12-18 Mtu Aero Engines Gmbh Compressor of a gas turbine
EP1965028A3 (en) * 2007-02-27 2010-11-24 General Electric Company Apparatus for assembling blade shims
EP2163728A2 (en) * 2008-09-11 2010-03-17 General Electric Company Load pin for compressor square base stator and method of use
EP2163728A3 (en) * 2008-09-11 2012-04-25 General Electric Company Load pin for compressor square base stator and method of use
FR2948736A1 (en) * 2009-07-31 2011-02-04 Snecma EXTERNAL VIROLE SECTOR FOR AIRBORNE TURBOMACHINE AIRBORNE STATOR CROWN, COMPRISING SHOCK ABSORBING MOUNTS
WO2011012679A3 (en) * 2009-07-31 2011-04-21 Snecma Outer shell sector for a bladed stator ring of an aircraft turbine engine, comprising vibration-damping blocks

Also Published As

Publication number Publication date
CN1057820C (en) 2000-10-25
US5575621A (en) 1996-11-19
JPH08177798A (en) 1996-07-12
EP0707150B1 (en) 2002-08-28
JP4043537B2 (en) 2008-02-06
CN1129290A (en) 1996-08-21
DE4436731A1 (en) 1996-04-18
DE59510342D1 (en) 2002-10-02
EP0707150A3 (en) 1998-01-07

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