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EP3000982A1 - Agencement pour étanchéifier la fente entre deux segments d'un anneau statorique - Google Patents

Agencement pour étanchéifier la fente entre deux segments d'un anneau statorique Download PDF

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Publication number
EP3000982A1
EP3000982A1 EP14186781.2A EP14186781A EP3000982A1 EP 3000982 A1 EP3000982 A1 EP 3000982A1 EP 14186781 A EP14186781 A EP 14186781A EP 3000982 A1 EP3000982 A1 EP 3000982A1
Authority
EP
European Patent Office
Prior art keywords
sealing element
arcuate
sealing
ring segments
compressor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP14186781.2A
Other languages
German (de)
English (en)
Inventor
Francois Benkler
Achim Schirrmacher
Hubertus Michael Wigger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Priority to EP14186781.2A priority Critical patent/EP3000982A1/fr
Priority to PCT/EP2015/072115 priority patent/WO2016050642A1/fr
Publication of EP3000982A1 publication Critical patent/EP3000982A1/fr
Withdrawn legal-status Critical Current

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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
    • F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
    • F01D11/003—Preventing or minimising internal leakage of working-fluid, e.g. between stages by packing rings; Mechanical seals
    • 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
    • F05D2230/90—Coating; Surface treatment
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2240/00—Components
    • F05D2240/10—Stators
    • F05D2240/11—Shroud seal segments
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2240/00—Components
    • F05D2240/80—Platforms for stationary or moving blades

Definitions

  • the invention relates to a connection arrangement of a compressor with a plurality of vanes equipped Ver Whyrleitrise a compressor of at least two mutually interacting arcuate ring segments of the Ver Whyrleitrise and a sealing device for sealing an expansion joint formed by two of the at least arcuate ring segments.
  • the invention further relates to a turbine or a compressor with at least one compressor guide disc comprising at least two ring segments.
  • a gas turbine essentially consists of a compressor device, a combustion chamber device and the actual turbine device.
  • the compressor device By means of the compressor device, air drawn in from the surroundings is compressed and then fed to the combustion chamber device, in which a fuel (fuel gas) mixed with the compressed air is burned under similar pressure conditions as in the compressor device as an air-fuel mixture.
  • a fuel fuel gas
  • this air-fuel mixture is expanded in the turbine device while performing work to ambient pressure.
  • the compressor device includes, among other things, a vane unit and a blade unit, wherein the in shape a disc-shaped Ver Whyrleitility executed Leitschaufelö comprises a plurality of vanes, which are fixed at their respective Leitschaufel hypothesis H by means of a radially inner ring arranged inside and at their respective radially outer Leitschaufelenden by means of a corresponding radially further outwardly disposed outer ring in the compressor device.
  • the inner ring here consists of two ring parts, which serve to define pronounced on the respective Leitschaufelfuß retaining elements of the individual vanes, wherein the two ring parts are designed such that they firmly surround these holding elements. As a rule, these ring parts are welded together.
  • the disk-type compressor guide disk can be composed of different numbers of arc-shaped ring segments arranged around the rotor axis, wherein a division of the compressor guide disk into at least two halves is required in order, for example, to be able to carry out maintenance measures.
  • the individual arcuate ring segments are fixed to each other at interfaces, and these interfaces must also be sealed in order to better separate consecutively connected compressor stages on the inner ring.
  • an expansion joint is provided in order to compensate for thermally induced expansion differences with respect to the individual arcuate ring segments, with different connection variations exist with respect to the interfaces.
  • Another variant provides a tooth arrangement, in which the mutually facing end faces of the two circumferentially immediately adjacent to each other arcuate ring segments each have a row of teeth whose teeth can engage in each other to fix the arcuate ring segments to each other.
  • a further connection variant also provides a sealing device with a cross-sealing sheet with at least two intersecting and thereby interlocking sealing sheet metal elements, which lie in grooves located on the arcuate ring segments.
  • a cross-sealing sheet with at least two intersecting and thereby interlocking sealing sheet metal elements, which lie in grooves located on the arcuate ring segments.
  • cross-sealing sheets fix the arcuate ring segments to each other and on the other hand seal the expansion joint between these arcuate ring segments well.
  • sealing devices in connection arrangements known hitherto are often elaborately constructed, and thus are also constructed so that they are susceptible to failure.
  • sealing means with arranged between the arcuate ring segments consisting of two sheet metal elements tantdichtblechen prove to be expensive, difficult to design and assemble.
  • connection arrangement of equipped with a plurality of vanes Ver Whyrleitulation a compressor of at least two mutually interacting arcuate ring segments of Ver Whyrleitulation and a sealing device for sealing an expansion joint formed by two of the at least arcuate ring segments, wherein the sealing means only a single Has transverse to the circumferential direction of the Ver Whyrleitulation extending sealing element.
  • the sealing device of the present connection arrangement comprises only a single sealing element according to the invention
  • the sealing device is very simple in construction. In other words, all the previously provided sealing plates of such a generic sealing device have been eliminated, except for the present single sealing plate of the sealing device. Accordingly, it is easy to install, low maintenance and less prone to damage.
  • the single sealing element can be designed in many ways.
  • the sealing device has only a single main extension direction in which the long side of the sealing element extends.
  • a known cross-sealing plate has at least two main directions of extension extending perpendicular to one another, namely a first main extension direction of a first seal plate and at least one further main extension direction of at least one further seal plate.
  • the present single sealing element has a single main extension direction transverse to the circumferential direction.
  • main extension direction in the sense of the invention describes the direction in which the component, that is the sealing device or the sealing element, extends the longest.
  • connection arrangement can be realized in a particularly simple manner if two directly adjacent ring segments per expansion joint are operatively connected to one another by means of the single sealing element.
  • the sealing element provided here not only serves the actual sealing on the Ver whorleitsay, but it can also serve a simple positioning of itself directly two opposite ends of two ring segments.
  • the single sealing element is arranged with its longitudinal extension of a radially further inwardly disposed inside of one of the arcuate ring segments to a radially further outside arranged outside of this arcuate ring segment extending to the ring segments.
  • an inner region (inner side) of the arcuate annular segment adjoins radially further inward on a compressor rotor or a compressor shaft, while an outer region (outer side) of this arcuate Ring segment radially further outside the individual guide vanes facing the Verêtrleitcons.
  • the present sealing element can be of very different types.
  • the single sealing element comprises a single sealing sheet element, so that it can easily be welded, for example, to one of the arcuate ring segments, if this is expedient.
  • connection arrangement provides that the sealing device has only a single sealing element receiving groove on a transversely to the circumferential direction of the arcuate ring segment end face of this arcuate annular segment, whereby further simplifies the structural design of the ring segments in particular.
  • front side in this case describes an end of the arcuate annular segment, which extends substantially transversely to the circumferential direction of this arcuate annular segment, wherein in the assembled state of the Ver Whyrleitusion two end faces of two arcuate ring segments directly opposite and are operatively connected to the single sealing element.
  • connection arrangement can advantageously be further developed if the sealing device in each case comprises two opposing sealing element receiving grooves for receiving the single sealing element.
  • the only sealing element can be mounted very securely on two immediately adjacent arcuate ring segments, when the single sealing element is arranged interactively, each with a sealing element receiving groove of two arcuate ring segments.
  • connection device can be structurally simplified if an arcuate ring segment has at least two ring parts, and wherein a sealing element receiving groove for receiving the single sealing element is arranged only in one of the at least two ring parts.
  • the object of the invention is also achieved by a turbine or a compressor with at least one compressor guide disk comprising at least two ring segments, wherein the compressor guide disk has a connection arrangement according to one of the features described here.
  • a turbine equipped in this way or a corresponding compressor can be made simpler overall and are also less expensive.
  • connection arrangement according to the invention with only a single transverse to the circumferential direction of a Ver emphasizerleitulation extending sealing element is explained with reference to the accompanying schematic drawing.
  • the single figure shows schematically a perspective partial view of a connection arrangement according to the invention.
  • connection arrangement 1 according to the invention on a compressor guide disk 2 of a compressor not shown here (not shown).
  • the Ver Whyrleitis 2 consists essentially of an inner ring 3, an outer ring (not shown) and a plurality to guide vanes (not shown) supported by the inner ring 3 and the outer ring.
  • This inner ring 3 is composed of a plurality of arcuate ring segments 4 (not shown by way of example), wherein at least two such arcuate ring segments 4 are arranged with their ends 5 opposite one another such that there is an expansion joint 6 between these ends 5, which should be sealed as well as possible in order to operate the compressor or the turbine as effectively as possible.
  • each arcuate annular segment 4 each form an end face 7 of the arcuate annular segment 4, wherein the end face 7 transverse to the circumferential direction 8 of the arcuate annular segment 4 and hereby also the Ver Whyrleitis 2 is arranged.
  • the circumferential direction 8 coincides here with the ring segment longitudinal extension 9.
  • connection arrangement 1 comprises two interacting arcuate ring segments 4.
  • connection arrangement 1 also comprises a sealing device 10 in order to be able to seal this expansion joint 6 as well as possible.
  • this sealing device 10 has only one sealing element 11 extending transversely to the circumferential direction 8 of the compressor guide disk 2.
  • This sealing element 11 extends in this case with its longitudinal extension 12 from a radially inner side 13 of the inner annular segment 4 to a radially outer side outside 14 of the arcuate annular segment 4, or vice versa, so that the single sealing device 10 and the only sealing member 11 only one common main extension direction 15 has.
  • each connection arrangement 1 of the compressor impeller 2 has only a single only one main extension direction 15 having sealing means 10, so that two immediately adjacent arcuate ring segments 4 per expansion joint 6 are operatively connected to each other only by means of the only in the main extension direction 15 mainly extending seal member 11.
  • the sealing device 10 or the single sealing element 11 are structurally simply embodied by a single sealing sheet element 16.
  • the sealing device 10 is still characterized by a single sealing element receiving groove 20 per end face 7 of the arcuate annular segment 4.
  • connection arrangement 1 only two such sealing element receiving grooves 20 are provided per connection arrangement 1, namely one at each of the opposite ends 5 of two directly adjacent curved ring segments 4.
  • the single sealing element receiving groove 20 extends uninterruptedly from the inner side 14 to the outer side 15 so that it is not interrupted by any further groove.
  • the single sealing element 11 is also arranged interactively in each case in a sealing element receiving groove 20 of two ring segments 4.
  • connection arrangement 1 is further simplified in that only one of the two ring parts 21 and 22, of which in each case a ring segment 4, per end face 7 has only a single such sealing element-receiving groove 20.
  • the single sealing element receiving groove 20 is in this case bounded by the two ring parts 21 and 22.
  • this single sealing element receiving groove 20 and the single sealing element 11 and thus also the entire sealing device 10 extends only parallel to the arcuately shaped side surfaces 23 and 24 of the respective ring segment 4, so that the sealing device 10 overall very compact in the respective ring segment. 4 can be integrated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP14186781.2A 2014-09-29 2014-09-29 Agencement pour étanchéifier la fente entre deux segments d'un anneau statorique Withdrawn EP3000982A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP14186781.2A EP3000982A1 (fr) 2014-09-29 2014-09-29 Agencement pour étanchéifier la fente entre deux segments d'un anneau statorique
PCT/EP2015/072115 WO2016050642A1 (fr) 2014-09-29 2015-09-25 Système destiné à assurer l'étanchéité de l'interstice entre deux segments d'une couronne d'aubes fixes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP14186781.2A EP3000982A1 (fr) 2014-09-29 2014-09-29 Agencement pour étanchéifier la fente entre deux segments d'un anneau statorique

Publications (1)

Publication Number Publication Date
EP3000982A1 true EP3000982A1 (fr) 2016-03-30

Family

ID=51625914

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14186781.2A Withdrawn EP3000982A1 (fr) 2014-09-29 2014-09-29 Agencement pour étanchéifier la fente entre deux segments d'un anneau statorique

Country Status (2)

Country Link
EP (1) EP3000982A1 (fr)
WO (1) WO2016050642A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6016003U (ja) * 1983-07-12 1985-02-02 株式会社　大隈鉄工所 シリンダの高音阻止機構
US5158430A (en) * 1990-09-12 1992-10-27 United Technologies Corporation Segmented stator vane seal
US5709530A (en) * 1996-09-04 1998-01-20 United Technologies Corporation Gas turbine vane seal
EP0911490A2 (fr) * 1997-10-21 1999-04-28 Mitsubishi Heavy Industries, Ltd. Dispositif d'étanchéité en forme d'une double croix pour les aubes statoriques d'une turbine à gaz
US5971400A (en) * 1998-08-10 1999-10-26 General Electric Company Seal assembly and rotary machine containing such seal assembly
WO2009116898A1 (fr) * 2008-03-18 2009-09-24 Volvo Aero Corporation Composant de carter de turbine à gaz
FR2998610A1 (fr) * 2012-11-29 2014-05-30 Snecma Roue de redresseurs a plateformes espacees

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60116003U (ja) * 1984-01-13 1985-08-06 株式会社日立製作所 ダイヤフラム

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6016003U (ja) * 1983-07-12 1985-02-02 株式会社　大隈鉄工所 シリンダの高音阻止機構
US5158430A (en) * 1990-09-12 1992-10-27 United Technologies Corporation Segmented stator vane seal
US5709530A (en) * 1996-09-04 1998-01-20 United Technologies Corporation Gas turbine vane seal
EP0911490A2 (fr) * 1997-10-21 1999-04-28 Mitsubishi Heavy Industries, Ltd. Dispositif d'étanchéité en forme d'une double croix pour les aubes statoriques d'une turbine à gaz
US5971400A (en) * 1998-08-10 1999-10-26 General Electric Company Seal assembly and rotary machine containing such seal assembly
WO2009116898A1 (fr) * 2008-03-18 2009-09-24 Volvo Aero Corporation Composant de carter de turbine à gaz
FR2998610A1 (fr) * 2012-11-29 2014-05-30 Snecma Roue de redresseurs a plateformes espacees

Also Published As

Publication number Publication date
WO2016050642A1 (fr) 2016-04-07

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