EP3380705A1 - Ensemble disque de turbine à joint d'étanchéité en deux parties - Google Patents

Ensemble disque de turbine à joint d'étanchéité en deux parties

Info

Publication number
EP3380705A1
EP3380705A1 EP17714663.6A EP17714663A EP3380705A1 EP 3380705 A1 EP3380705 A1 EP 3380705A1 EP 17714663 A EP17714663 A EP 17714663A EP 3380705 A1 EP3380705 A1 EP 3380705A1
Authority
EP
European Patent Office
Prior art keywords
sealing
rotor disk
rotor
arrangement according
wing
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Withdrawn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
EP17714663.6A
Other languages
German (de)
English (en)
Inventor
Peter Schröder
Dirk Springborn
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
Publication of EP3380705A1 publication Critical patent/EP3380705A1/fr
Withdrawn legal-status Critical Current

Links

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
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/30—Fixing blades to rotors; Blade roots ; Blade spacers
    • F01D5/3007—Fixing blades to rotors; Blade roots ; Blade spacers of axial insertion type
    • F01D5/3015—Fixing blades to rotors; Blade roots ; Blade spacers of axial insertion type with side plates

Definitions

  • Rotor disc assembly with two-piece seal The invention relates to a rotor disk assembly having a rotor disk and arranged in front of an end face sealing ⁇ elements according to the preamble of claim 1.
  • the blade holding grooves are reliably covered by the sealing sheets.
  • the attachment of the sealing ⁇ plates takes place on the rotor disk or on the Laufschaufein in a different manner, for which purpose usually the sealing plates are mounted on the inner circumference in an annular groove of the rotor disk.
  • the axial securing of the sealing plates on the outer circumference takes place in the usual way also in an annular groove, which is formed by the circumferentially segmented adjacent Laufschaufein.
  • Object of the invention is therefore to allow the attachment of an additional sealing web without the cost increases significantly.
  • the generic rotor disk assembly initially comprises a rotor disk. This has distributed on the outer circumference on a plurality of axially extending blade retaining grooves. Here, it is not essential that the exhibition ⁇ felhaltenuten parallel to the rotor axis, although this is ⁇ , the advantageous and cost-effective design. Rather, it is sufficient if the Schaufelhalte- grooves extend from one end face of the rotor disk until at ⁇ the end face of the rotor disk. Here, these can be both a curved course as run in a straight course in vorteilhaf ⁇ ter way. Furthermore, the rotor disk, at least on one side in front of the end face below the Schaufelhaltenuten a circumferential Blechhaltenut or more circumferentially distributed Blechhaltenu ⁇ th.
  • the rotor disk arrangement comprises a plurality of sealing plates, which form a substantially closed ring distributed over the circumference.
  • the sealing plates in this case have a flat shape and extend transversely to the rotor axis.
  • the sealing plates are mounted in the rotor disk assembly at their respective inner circumference in the sheet holding groove.
  • the sealing plates in sections from the Schaufelhal ⁇ tenuten.
  • a plurality of sealing wings is used.
  • these sealing wings supplement the sealing plates for covering the blade retaining grooves.
  • the plurality of separate sealing wings also forms a circumferential, substantially closed ring, wherein the sealing wings are also arranged in front of the end face of the rotor disk.
  • the sealing blades are further positioned immediately adjacent to the sealing plates, wherein the sealing plates are located on the side pointing to the rotor axis side adjacent to the sealing wings.
  • sealing plates By dividing the sealing elements commonly used to cover the Schaufelhaltenuten in inner sealing plates and located above sealing wings greater freedom in terms of choice of materials and the design is achieved. Now, the sealing plates can be made of a cost-effective material, while on the other hand in the case of the sealing wings, it is possible to selectively attach further functions.
  • the sealing plates are each made of a metal sheet.
  • the sealing sheets are designed to open radially outward.
  • it will he ⁇ enables to form spaced well ⁇ gelstege the sealing wing two, each of which extends radially.
  • Sealing wings viewed in the direction of rotation offset zueinan ⁇ are positioned. Moreover, it is advantageous if the number of sealing wings and sealing plates is varied to each other.
  • the sealing wings it is advantageous if a plurality of circumferentially distributed fastening sockets is arranged on the rotor disk.
  • This mounting base it is particularly advantageous here ⁇ stretch over the end ⁇ side of the rotor disc in the axial direction over the sealing sheet ⁇ addition.
  • the mounting base are each arranged between two blade retaining grooves.
  • the design of the mounting base can be done varied. In both advantageous and simple embodiment of the respective mounting base is formed in each case as a portion of a rotating body. This simplifies the manufacture of the rotor disk and the assembly of the sealing wing ⁇ .
  • the free end of the actuating buildin ⁇ plinth has a smaller distance from the rotor axis than the mounting socket on the end face of the rotor disk on ⁇ . Socketing to the mounting to secure grip of the sealing wing, it is particularly advantageous if the Be ⁇ fixing pedestal approaches on the side facing to the rotor axis underside of the course from the end side toward the free end of the Fixed To ⁇ supply socket to the rotor axis. In this regard, it does not matter if the approach is continuous or erratic.
  • the mounting base can be varied in cross-section out ⁇ leads and have for example a T-shaped configuration ⁇ .
  • a secure hold both in the axial direction and radial direction is made possible when mounting the sealing ⁇ wing on the mounting sockets.
  • the sealing wing has at least two fastening receptacles with a vitelie ⁇ ing free space. In this regard, it is irrelevant whether the sealing wing still has on both sides of the Befest Trentsauf ⁇ took one or two more free spaces or the number of mounting receptacles and clearances further increased.
  • At least the lying between the fastening recordings ⁇ clearance during rotation of the sealing wing allows re ⁇ tively for a rotor disk assembly or disassembly of the sealing wing on the rotor disk.
  • a corresponding position of the sealing blade relative to the rotor disc carries out the installation of the sealing wing on the rotor disk to a dipping the Be ⁇ fixing base into the free space, wherein is carried out in the following by the rotation of the sealing blade relative to the rotor disk, the joining of the mounting socket in the mounting receptacle.
  • the mounting base starting from the end face to the free end has a constant or decreasing material thickness.
  • the material thickness is in this respect to be determined perpendicular to the underside of the Befest Nathansso ⁇ cels.
  • the Befest Nathansflü ⁇ gel can directly without rotation to be dismantled by Schieb- and / or pivotal movement from the mounting base with a ge to the rotor axis ⁇ inclined movement.
  • a similar assembly is made possible if having independently of the concrete design of the mounting socket the fastening receptacle on the side facing away from the rotor axis side a sufficient free space, so that a possible undercut on buildin ⁇ actuation socket does not impede the assembly process.
  • the sealing wing which is ⁇ be true for mounting without rotation on the opposite sides in the circumferential direction each side parallel to each other extending side edges.
  • the radially oriented to the rotor axis for mounting and Demontagebewe ⁇ supply does not lead to a collision with adjacent sealing wings at the side edges.
  • the sealing wings have a support surface on the side facing the rotor axis. At this support surface, the sealing plates lie with an outer circumference. catch surface at least during rotation of the rotor disk assembly. Accordingly, the sealing plates are supported radially by the sealing wings. Thus, a particularly simple assembly and storage of the sealing plates can be realized.
  • the shape of the support surface or the outer peripheral surface is initially irrelevant, provided that the corresponding system is guaranteed to support the sealing plates.
  • the supporting surface as part of a cylinder surface designed to support ⁇ reindeer, so that a radially aligned contact of the Jardinum- ensures circumferential surface.
  • the support surface in a cross section long viewed the axis of rotation inclined or arcuate execute, in which case the support surface similar to the underside ⁇ side of the mounting base with increasing distance from the front side of the rotor axis approaches.
  • the sealing wings adjacent to the support surface have a retaining projection.
  • the retaining projection is the width of the support surface
  • an opening towards the Ro ⁇ gate axis attachment groove with the groove bottom is realized as a supporting surface by the sealing wing together with the rotor disk.
  • a Siche ⁇ approximately element is used in an advantageous manner. This passes through at least partially the sealing wing and / or the sealing plate and engages in a recess or a system on the Rotorschei ⁇ be or the rotor blade. It can be provided that the securing element is only fixed a sealing wing and a sealing plate, wherein the Siche ⁇ approximately element is arranged at the joint between the sealing wing and sealing plate, in an advantageous manner so that with the securing element, at least the direction of rotation of the two elements is also secured.
  • the securing element fixed to the blade said sublime extending from the end face axially.
  • an intervention of the hedging element ⁇ tion in a recess on the sealing wing or the sealing plate or at least a system on the sealing wing or sealing plate allows and thus prevents its rotation relative to the rotor disc.
  • FIG. 1 and 2 show a detail of an inventive device
  • Rotor disk assembly with a rotor disk, front side arranged sealing ⁇ sheets and distributed over the circumference arranged sealing wings;
  • Figure 3 is another perspective view of
  • Figure 4 shows the rotor disk assembly analogous to Figure 3 in section
  • Figures 5 to 7 a sealing wing of Rotorinanord ⁇ voltage and 8, a sealing plate of Rotorinanord ⁇ voltage.
  • FIGS. 1 to 3 and in section in FIG. 4 first of all the rotor disk 01 can be seen. This has a plurality of circumferentially distributed arranged Schaufelhaltenuten 09, which 09 are arranged in this embodiment gradli ⁇ nig and parallel to the rotor axis.
  • the blade retaining grooves serve to receive blades to be attached to the rotor disk 01.
  • the rotor disk arrangement comprises a plurality of sealing plates 11, which are distributed in the circumference and which, on the rotor disk 01, are provided with sen 11 inner circumference 14 are mounted in a sheet holding groove 04.
  • the sealing plate 11 as a separate component is shown in FIG. 8 for this purpose and has a region pointing radially to the rotor axis on the inner periphery 14 and a radially outer region on the outer periphery 15 and an outer peripheral surface 12.
  • the sealing plate 11 has on both sides a recess 16 for securing the sealing plate 11 in the circumferential direction.
  • the mounting of the sealing plate 11 on the rotor disk can be seen advantageously in FIG.
  • the sealing plate 11 is mounted with the inner circumference 14 in the sheet metal holding groove formed radially outward from the rotor disk.
  • the sealing plate 11 is fixed both in the axial direction.
  • the sealing plate 11 is radially groove bottom of the sheet holding groove 04 at. According determination covers the sealing plate 11, the portion ⁇ Schaufelhaltenut 09 at one end face 02 of the Ro ⁇ torusion 01 from. As a result, it is largely prevented that hot gas flowing in the hot gas path of the gas turbine can penetrate into the lower region of the blade retaining grooves 09.
  • sealing wings 21 are arranged distributed on the rotor disk 01 in the circumference. These 21 are here also in front of the end face 02 of the rotor disk 01 radially outside of the sealing plates eleventh
  • the sealing wings 21 in addition to the Dichtble ⁇ surfaces 11, the blade retaining grooves 09 from the front side.
  • the sealing wings in addition to the sealing plates 11 is achieved by the sealing wings, the extensive coverage of the blade retaining grooves 09.
  • a plurality of mounting bases 03 are arranged distributed on the rotor disk 01 in the circumference, on which the sealing wings 21 are mounted.
  • the sealing wings 21 on the side facing the rotor disc 01 Be ⁇ te respectively corresponding fastening receptacles 23rd
  • the mounting base 03 - which 03 each ⁇ Weils are arranged between two blade retaining grooves 09 - trapezoidal shape and widen with increasing distance from the front side 02 to a free end 05 of the mounting base 03.
  • This 21 has on the side facing the end face 02 back in the embodiment ⁇ example, three fastening receptacles 23 which are designed to the mounting pedestals 03 23 comple ⁇ tary.
  • the design of the sealing wing 21 with a U-shaped, radially outwardly opening shape. In this way, a first end face 02 facing, radially outwardly extending wing web 28 and spaced second radially extending wing web 29 is formed.
  • the separation of ordinary sealing elements in a radially inner sealing plate 11 and a radially outer sealing wing 21 is particularly advantageously made possible by the sealing wing 21 on the radially to the rotor axis ⁇ the side a support surface 22 is disposed on the 22, the sealing plate 11 with his Outer peripheral surface 12 comes to rest.
  • the sealing plate 11 is radially fixed by the sealing wing 21.
  • the sealing wing 21 adjacent to the support surface 22 on a radially to the rotor axis he ⁇ stretching retaining projection 25 which 25 spaced from the end face 01 is arranged. This makes it possible that the sealing plate 11 at the outer periphery 15 between the front page 02 of the rotor disk 01 and the retaining projection 25 of the sealing wing 21 is axially fixed.
  • the sealing wings 21 are each offset by half a length to the sealing plates 11 are arranged. This will on the one hand, avoided that the alignment between each two sealing sheets 11 existing column with the existing between each two Dichtflü ⁇ rules 21 column. Furthermore, the staggered arrangement of the sealing wing 21 and the sealing plate 11 enables the positioning of a securing element 07 to be recognized in particular in FIG. 4 within the sealing wing 21 at the same time in the corner between two sealing elements 11. In this case, the securing element 07 penetrates the sealing wing 21 in the region of the recess 26 and abuts the recesses 16 of the adjacent sealing plates 11 at.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

La présente invention concerne un ensemble disque de turbine comportant un disque de turbine (01) sur lequel sont disposées de manière répartie une pluralité de tôles d'étanchéité (11), devant une surface latérale (02), et une pluralité d'ailettes d'étanchéité séparées (21), radialement à l'extérieur des tôles d'étanchéité.
EP17714663.6A 2016-04-08 2017-03-22 Ensemble disque de turbine à joint d'étanchéité en deux parties Withdrawn EP3380705A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016205921.1A DE102016205921B4 (de) 2016-04-08 2016-04-08 Rotorscheibenanordnung mit zweiteiliger Dichtung
PCT/EP2017/056776 WO2017174355A1 (fr) 2016-04-08 2017-03-22 Ensemble disque de turbine à joint d'étanchéité en deux parties

Publications (1)

Publication Number Publication Date
EP3380705A1 true EP3380705A1 (fr) 2018-10-03

Family

ID=58461275

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17714663.6A Withdrawn EP3380705A1 (fr) 2016-04-08 2017-03-22 Ensemble disque de turbine à joint d'étanchéité en deux parties

Country Status (4)

Country Link
US (1) US20200291798A1 (fr)
EP (1) EP3380705A1 (fr)
DE (1) DE102016205921B4 (fr)
WO (1) WO2017174355A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3564489A1 (fr) 2018-05-03 2019-11-06 Siemens Aktiengesellschaft Rotor à surfaces de contact optimisées au niveau de forces centrifuges

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4171930A (en) * 1977-12-28 1979-10-23 General Electric Company U-clip for boltless blade retainer
US6884028B2 (en) * 2002-09-30 2005-04-26 General Electric Company Turbomachinery blade retention system
DE102005063286A1 (de) 2005-12-30 2007-07-05 Würth Elektronik GmbH & Co. KG Kontaktbuchse für einen Steckerstift
EP1944471B1 (fr) 2007-01-09 2009-09-02 Siemens Aktiengesellschaft Partie axiale d'une rotor de turbine
EP2218873A1 (fr) 2009-02-17 2010-08-18 Siemens Aktiengesellschaft Section de rotor pour un rotor d'une turbomachine, aube directrice pour une turbomachine et élément de blocage
EP2236758A1 (fr) 2009-03-26 2010-10-06 Siemens Aktiengesellschaft Système d'aube avec plaques d'étanchéité comportant des nervures
US9605552B2 (en) * 2013-06-10 2017-03-28 General Electric Company Non-integral segmented angel-wing seal

Also Published As

Publication number Publication date
WO2017174355A1 (fr) 2017-10-12
DE102016205921A1 (de) 2017-10-12
US20200291798A1 (en) 2020-09-17
DE102016205921B4 (de) 2019-04-25

Similar Documents

Publication Publication Date Title
DE69817984T2 (de) Turbinenrotorscheibenanordnung
EP3022458B1 (fr) Liaison disque de frein / moyeu
CH702174B1 (de) Sicherungs-Abstandshalteranordnung für ein Schaufelblattbefestigungssystem zur Einführung in einen Umfangsbefestigungsschlitz.
EP3090135B1 (fr) Agencement de disque de roue et procédé de montage d'un agencement de disque de roue
WO2008122492A1 (fr) Agencement pour fixation axiale à des ailettes de rotor et turbine à gaz dotée d'un tel agencement
DE4300665A1 (en) Axially sprung clutch plate with friction-lined rings - has spring segments carrying lining rings, axially sprung against each other and fixed to lining plate
EP3176384B1 (fr) Virole interne, secteur de virole interne, aubage statorique et turbomachine
EP1840338B1 (fr) Arrangement pour la fermeture axiale des palettes d'une turbine dans un rotor et gasturbine avec un tel arrangement
WO2010049196A1 (fr) Turbine à gaz avec plaques d'étanchéité sur le disque de turbine
EP3129600B1 (fr) Assemblage de disque de roue
DE102017116681B3 (de) Bremsscheibe
EP3380705A1 (fr) Ensemble disque de turbine à joint d'étanchéité en deux parties
EP3129599B1 (fr) Assemblage de disque de roue
WO2018036818A1 (fr) Rotor muni d'une bague d'étanchéité segmentée
EP3176385B1 (fr) Boitier de stator pour une turbomachine et turbomachine comprenant un boitier de stator
EP2333249B1 (fr) Carter central d'un turbocompresseur
EP3423679A1 (fr) Disque de rotor muni d'un élément d'étanchéité côté frontal
EP3109520A1 (fr) Support d'étanchéité, stator et turbomachine
EP3695100B1 (fr) Rotor pourvu d'élément d'étanchéité et de bague d'étanchéité
EP3269967A1 (fr) Système de couplage rotatif d'un arbre de pivotement d'un dispositif de fermeture d'un clapet d'échappement à l'aide d'un organe d'entraînement
EP3724456B1 (fr) Rotor à surfaces de contact optimisées au niveau de forces centrifuges
DE102016204291A1 (de) Leitschaufelteller mit einem angefasten und einem zylindrischen Randbereich
WO2018082907A1 (fr) Segment étanche d'un rotor et rotor
EP3318723B1 (fr) Anneau d'étanchéité d'un rotor et rotor
DE102016211344A1 (de) Rotor mit Sicherungsplatte für eine Turbomaschine

Legal Events

Date Code Title Description
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: 20180620

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

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20200219

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20200630