EP3564489A1 - Rotor mit fliehkraft-optimierten kontaktflächen - Google Patents

Rotor mit fliehkraft-optimierten kontaktflächen Download PDF

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Publication number
EP3564489A1
EP3564489A1 EP18170613.6A EP18170613A EP3564489A1 EP 3564489 A1 EP3564489 A1 EP 3564489A1 EP 18170613 A EP18170613 A EP 18170613A EP 3564489 A1 EP3564489 A1 EP 3564489A1
Authority
EP
European Patent Office
Prior art keywords
rotor
holding
radius
shoulder
disk
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Withdrawn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
EP18170613.6A
Other languages
German (de)
English (en)
French (fr)
Inventor
Harald Hoell
Kevin KAMPKA
Peter Schröder
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 EP18170613.6A priority Critical patent/EP3564489A1/de
Priority to PCT/EP2019/059727 priority patent/WO2019211091A1/de
Priority to EP19720467.0A priority patent/EP3724456B1/de
Priority to US17/044,828 priority patent/US11319824B2/en
Priority to JP2020549678A priority patent/JP6995217B2/ja
Priority to CN201980029755.5A priority patent/CN112119205B/zh
Priority to KR1020207034393A priority patent/KR102498006B1/ko
Publication of EP3564489A1 publication Critical patent/EP3564489A1/de
Withdrawn legal-status Critical Current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
    • F01D11/005—Sealing means between non relatively rotating elements
    • F01D11/006—Sealing the gap between rotor blades or blades and rotor
    • 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
    • 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
    • F01D5/02—Blade-carrying members, e.g. rotors
    • F01D5/08—Heating, heat-insulating or cooling means
    • F01D5/081—Cooling fluid being directed on the side of the rotor disc or at the roots of the blades
    • 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
    • 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
    • F01D5/32—Locking, e.g. by final locking blades or keys
    • F01D5/326—Locking of axial insertion type blades by other means
    • 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
    • F05D2220/00—Application
    • F05D2220/30—Application in turbines
    • F05D2220/32—Application in turbines in gas turbines
    • 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
    • F05D2240/20—Rotors
    • F05D2240/24—Rotors for turbines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2250/00—Geometry
    • F05D2250/20—Three-dimensional
    • F05D2250/27—Three-dimensional hyperboloid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2250/00—Geometry
    • F05D2250/70—Shape
    • F05D2250/71—Shape curved
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2250/00—Geometry
    • F05D2250/70—Shape
    • F05D2250/71—Shape curved
    • F05D2250/711—Shape curved convex
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2250/00—Geometry
    • F05D2250/70—Shape
    • F05D2250/71—Shape curved
    • F05D2250/712—Shape curved concave

Definitions

  • the invention relates to a rotor having a rotor disk and a plurality of rotor components fastened circumferentially to the rotor disk, wherein the rotor disk has a support surface facing the rotor axis and the respective rotor component has a support surface complementary to the support surface.
  • the rotor disk has a circumferential projection extending axially in front of the end face, against which a fastening shoulder extending on the sealing element to the rotor disk is respectively supported.
  • a supporting surface facing the rotor axis is almost compulsorily formed on the projection of the rotor disk by a rotating surface rotating about the rotor axis.
  • the voltage applied to the support surface holding surface of the attachment paragraph is basically complementary to the support surface with matching radius.
  • Object of the present invention is therefore to realize an attachment of rotor components to a rotor disk at large centrifugal forces occurring.
  • the generic rotor is used in particular for use in a gas turbine. However, the embodiment can also be used in other types of rotors, for example in steam turbines. At least the rotor has at least one rotor disk on which a plurality of rotor components are distributed in the circumference.
  • the rotor disk in a first embodiment has a circumferential, axially extending fastening shoulder.
  • the rotor disk has a plurality of circumferentially distributed fastening heels, which each extend axially.
  • the encircling attachment paragraph or in this case the individual distributed in the circumference arranged mounting heels on the side facing the rotor axis side forms a support surface.
  • the support surface is a rotation surface revolving around the rotor axis or a portion of a corresponding rotation surface.
  • the support surface in turn has a mean support radius.
  • the rotor components each have a circumferentially extending and the rotor disk axially extending retaining shoulder, which is arranged on the side facing the rotor axis below the mounting paragraph of.
  • the holding shoulder on a support surface complementary to the support surface.
  • the holding surface is likewise a section of a rotation surface and has a middle holding radius.
  • the centrifugal forces occurring in the rotor component can thus be transmitted to the fastening shoulder at least proportionally via the retaining shoulder in the bearing of the retaining surface on the support surface.
  • the axial overlap between the holding surface and support surface can be used and an integral mean value of the respective radius or an average value at the geometric center in the axial direction can be determined here.
  • the holding surface and the support surface are formed by a matching surface of rotation and thus match the holding radius and the support radius according to the invention now the holding radius is smaller than the support radius. It has been shown in terms of achieving maximum load capacity that a holding radius with at least 0.99 times the support radius and at the same time with a maximum of 0.999 support radius according to the invention is of particular advantage over the known embodiments of the prior art.
  • the embodiment according to the invention is particularly advantageously suitable for a rotor disk on which a plurality of rotor blades distributed in the circumference can be attached.
  • the rotor disk distributed in the circumference has a plurality of blade disk axially penetrating the rotor disk.
  • the blade retaining grooves are hereby covered on one end side of the rotor disk by the rotor components distributed in the circumference at least in sections.
  • the particular advantage of the high load capacity of the connection according to the invention between the holding shoulder and the attachment paragraph is especially useful if the rotor component has an aperture penetrating the rotor component axially, which is arranged approximately in the center of the rotor component in the circumferential direction.
  • the breakthrough is located radially outside the position of the holding surface.
  • the opening extends in the circumferential direction over at least 0.25 times the width of the rotor component in the circumferential direction. It is particularly advantageous if the breakthrough extends over at least 0.4 times the width. In contrast, the breakthrough should not be greater than the 0.75 times the width of the rotor component in the circumferential direction. Again, it is particularly advantageous if the opening extends over a maximum of 0.6 times the width of the rotor component.
  • the rotor component may have different shapes, wherein the type of attachment to the rotor is advantageously suitable when the rotor component has a substantially flat in the circumferential direction and radially extending shape.
  • the tensile stresses in this case are at least twice as large as the bending stresses.
  • the rotor component can be supported on the rotor opposite to the holding shoulder with an inner edge portion facing the rotor axis.
  • the rotor disk on a circumferential, axially spaced from an end face of the rotor disk or from the fastening shoulder annular projection.
  • the corresponding annular projection is arranged on a second rotor disk adjacent to the rotor disk. At least the corresponding annular projection on the rotor disk or the second rotor disk forms a contact surface facing the fastening shoulder, against which the inner edge portion of the rotor components comes to rest.
  • FIG. 1 is schematically sketched in a longitudinal section through the rotor axis through the rotor disk 01 and the rotor member 11 in the region of the connection between the rotor member 11 and the rotor disk 01.
  • the rotor disk 01 can be seen with a blade holding groove 02 located on the radially outer circumference. This disk 02 is intended to accommodate moving blades (not shown here).
  • the rotor disk 01 in this case has a fastening shoulder 04, which extends in the circumferential direction and in the axial direction and has a support surface 05 on the side facing the rotor axis.
  • the support surface 05 is shown by way of example only slightly inclined and slightly convex executed sketched.
  • the rotor component 11, which is fastened to the rotor disk 01, can also be seen.
  • the rotor component 11 has a holding shoulder 14, which 14 likewise extends in the circumferential direction and axially.
  • the holding shoulder 14 forms a holding surface 15, which 15 is arranged on the radially outwardly facing side.
  • the holding surface 15 and the support surface 05 are listed complementary to each other.
  • the retaining shoulder 14 is arranged near the end of the rotor component 11 facing the rotor axis, an inner edge section 17 being located at the end on the side facing the rotor axis. This 17 is in this case axially against the annular projection 07 of the rotor disk 01.
  • the support surface 05 as well as the support surface 15, which, viewed in the axial direction, abut one another over a support width 10.
  • the support surface 05 as a rotation surface about the rotor axis to a central support radius 06.
  • the holding surface 15 of the rotor component 11 is likewise designed as a section of a rotation surface and can also be designed with a middle holding radius 16 to be discribed.
  • the holding radius 16 is in this case determined at the same axial position as the support radius 06.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Centrifugal Separators (AREA)
EP18170613.6A 2018-05-03 2018-05-03 Rotor mit fliehkraft-optimierten kontaktflächen Withdrawn EP3564489A1 (de)

Priority Applications (7)

Application Number Priority Date Filing Date Title
EP18170613.6A EP3564489A1 (de) 2018-05-03 2018-05-03 Rotor mit fliehkraft-optimierten kontaktflächen
PCT/EP2019/059727 WO2019211091A1 (de) 2018-05-03 2019-04-16 Rotor mit fliehkraft-optimierten kontaktflächen
EP19720467.0A EP3724456B1 (de) 2018-05-03 2019-04-16 Rotor mit fliehkraft-optimierten kontaktflächen
US17/044,828 US11319824B2 (en) 2018-05-03 2019-04-16 Rotor with centrifugally optimized contact faces
JP2020549678A JP6995217B2 (ja) 2018-05-03 2019-04-16 遠心力が最適化された接触面を有するロータ
CN201980029755.5A CN112119205B (zh) 2018-05-03 2019-04-16 具有离心力优化的接触面的转子
KR1020207034393A KR102498006B1 (ko) 2018-05-03 2019-04-16 원심력에 최적화된 접촉면을 갖는 회전자

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18170613.6A EP3564489A1 (de) 2018-05-03 2018-05-03 Rotor mit fliehkraft-optimierten kontaktflächen

Publications (1)

Publication Number Publication Date
EP3564489A1 true EP3564489A1 (de) 2019-11-06

Family

ID=62116260

Family Applications (2)

Application Number Title Priority Date Filing Date
EP18170613.6A Withdrawn EP3564489A1 (de) 2018-05-03 2018-05-03 Rotor mit fliehkraft-optimierten kontaktflächen
EP19720467.0A Active EP3724456B1 (de) 2018-05-03 2019-04-16 Rotor mit fliehkraft-optimierten kontaktflächen

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP19720467.0A Active EP3724456B1 (de) 2018-05-03 2019-04-16 Rotor mit fliehkraft-optimierten kontaktflächen

Country Status (6)

Country Link
US (1) US11319824B2 (ko)
EP (2) EP3564489A1 (ko)
JP (1) JP6995217B2 (ko)
KR (1) KR102498006B1 (ko)
CN (1) CN112119205B (ko)
WO (1) WO2019211091A1 (ko)

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US11415016B2 (en) * 2019-11-11 2022-08-16 Rolls-Royce Plc Turbine section assembly with ceramic matrix composite components and interstage sealing features

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EP1944471B1 (de) 2007-01-09 2009-09-02 Siemens Aktiengesellschaft Axialer Rotorabschnitt für einen Rotor einer Turbine
EP2344723B1 (de) 2008-10-30 2014-05-07 Siemens Aktiengesellschaft Gasturbine mit dichtplatten an der turbinenscheibe
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EP3019706A1 (de) 2013-10-10 2016-05-18 Siemens Aktiengesellschaft Anordnung zum sichern einer funktionsstellung einer an einer läuferscheibe angeordneten deckplatte relativ zu einer an der läuferscheibe angeordneten laufschaufel
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EP3129600A1 (de) 2014-07-17 2017-02-15 Siemens Aktiengesellschaft Radscheibenanordnung
EP3129599A1 (de) 2014-07-17 2017-02-15 Siemens Aktiengesellschaft Radscheibenanordnung
EP2975218A1 (de) * 2014-07-17 2016-01-20 Siemens Aktiengesellschaft Radscheibenanordnung
EP3167163A1 (de) 2014-10-30 2017-05-17 Siemens Aktiengesellschaft Radscheibenanordnung
EP3015656A1 (de) * 2014-10-30 2016-05-04 Siemens Aktiengesellschaft Radscheibenanordnung
EP3227532A1 (de) 2015-02-24 2017-10-11 Siemens Aktiengesellschaft Radscheibenanordnung mit vereinfachter dichtblechmontage
WO2017174355A1 (de) 2016-04-08 2017-10-12 Siemens Aktiengesellschaft Rotorscheibenanordnung mit zweiteiliger dichtung
WO2017174723A1 (de) 2016-04-08 2017-10-12 Siemens Aktiengesellschaft Rotorscheibe mit stirnseitigem dichtelement

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KR102498006B1 (ko) 2023-02-10
US11319824B2 (en) 2022-05-03
EP3724456B1 (de) 2023-03-01
JP6995217B2 (ja) 2022-01-14
JP2021517616A (ja) 2021-07-26
WO2019211091A1 (de) 2019-11-07
CN112119205B (zh) 2022-11-11
KR20210002683A (ko) 2021-01-08
US20210095568A1 (en) 2021-04-01
CN112119205A (zh) 2020-12-22
EP3724456A1 (de) 2020-10-21

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