EP3615263A1 - Reparierter ring und verfahren zur reparatur eines rings, der zur abdichtung verwendet wird - Google Patents
Reparierter ring und verfahren zur reparatur eines rings, der zur abdichtung verwendet wirdInfo
- Publication number
- EP3615263A1 EP3615263A1 EP18723421.6A EP18723421A EP3615263A1 EP 3615263 A1 EP3615263 A1 EP 3615263A1 EP 18723421 A EP18723421 A EP 18723421A EP 3615263 A1 EP3615263 A1 EP 3615263A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- ring
- repaired
- thickening
- repairing
- sealing
- 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- Withdrawn
Links
- 238000007789 sealing Methods 0.000 title claims description 12
- 238000000034 method Methods 0.000 title claims description 11
- 239000000463 material Substances 0.000 claims abstract description 9
- 230000008719 thickening Effects 0.000 claims description 8
- 238000003754 machining Methods 0.000 claims 1
- 238000003466 welding Methods 0.000 description 4
- 239000000843 powder Substances 0.000 description 3
- 238000005242 forging Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000000110 selective laser sintering Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P6/00—Restoring or reconditioning objects
- B23P6/002—Repairing turbine components, e.g. moving or stationary blades, rotors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/70—Recycling
- B22F10/73—Recycling of powder
-
- 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
-
- 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
- F01D5/005—Repairing methods or devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/28—Arrangement of seals
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/08—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing
- F16J15/0887—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing the sealing effect being obtained by elastic deformation of the packing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/20—Direct sintering or melting
- B22F10/25—Direct deposition of metal particles, e.g. direct metal deposition [DMD] or laser engineered net shaping [LENS]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/20—Direct sintering or melting
- B22F10/28—Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/001—Turbines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/34—Laser welding for purposes other than joining
- B23K26/342—Build-up welding
-
- 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
- F05D2220/31—Application in turbines in steam 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
- F05D2230/00—Manufacture
- F05D2230/80—Repairing, retrofitting or upgrading methods
-
- 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
- F05D2240/55—Seals
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Definitions
- the invention relates to a repaired ring and a method for repairing such rings, which are used for sealing, especially in steam turbines for sealing a vapor space to an environment or steam rooms with different pressures.
- SLM-compatible design / redesign of steam turbine parts U, I and L rings are today manufactured conventionally or by means of SLM and have long delivery times. They are used in various components (for example, valves, H-type turbines) to seal the steam space from the environment or steam rooms with different pressures.
- the rings have an allowance that is customized during the revision ⁇ time.
- FIGS. 1, 2 show a new ring
- FIGS. 3 and 4 schematically show a repaired ring
- FIGS. 5, 6 show an L and I ring.
- the figures and the description represent only embodiments of the invention.
- Figures 1, 2 show a new sealing ring 1 here preferably in a U-shape, but it can also have an I or L shape.
- the new sealing ring 1 ⁇ has on both sides bearing surfaces 4, 7, which are formed on the inner edge 20 and rise from the surrounding surface 5.
- FIG. 4 shows a cross-section of such a ring 1, which for example has a U-shape here.
- the contact surfaces 4, 7 are processed, depending ⁇ but is applied only to an abutment surface 7 material.
- the application of the material can be carried out by various application methods, so that a thickening takes place.
- These may be, additive method in which the ring is immersed in a powder bed and stepwise by selective laser sintering or laser melting of the area is set up or through build-up welding, in particular powder deposit welding ⁇ is the sealing function restored.
- the thickening 10 is preferably carried out by means of selective laser melt melting (SLM) or laser powder build-up welding (LMD) near the final contour.
- SLM selective laser melt melting
- LMD laser powder build-up welding
- FIG. 3 shows a further variant.
- ring 1 4 material is carried from ⁇ not only as according to figure, which is worn out, but he deliberately 16 ⁇ demonstrates a groove in which an insert ring 13 is inserted as thickening 10th
- the insert ring 13 can be connected in the groove 16 in various ways: soldering, welding, mechanical clamping.
- the thickening 10 on only one side 7 compensates for the removal on both sides 4, 7 or the bearing surface opposite the sealing ring surfaces.
- Figure 5 shows an L-ring 11 with contact surfaces 20 ⁇ and Figure 6 shows an I-ring 111 with contact surface 21, 21 ⁇ .
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Laser Beam Processing (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Gasket Seals (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102017209364.1A DE102017209364A1 (de) | 2017-06-02 | 2017-06-02 | Reparierter Ring und Verfahren zur Reparatur eines Rings, der zur Abdichtung verwendet wird |
| PCT/EP2018/060139 WO2018219555A1 (de) | 2017-06-02 | 2018-04-20 | Reparierter ring und verfahren zur reparatur eines rings, der zur abdichtung verwendet wird |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3615263A1 true EP3615263A1 (de) | 2020-03-04 |
Family
ID=62143112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP18723421.6A Withdrawn EP3615263A1 (de) | 2017-06-02 | 2018-04-20 | Reparierter ring und verfahren zur reparatur eines rings, der zur abdichtung verwendet wird |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US11286777B2 (de) |
| EP (1) | EP3615263A1 (de) |
| DE (1) | DE102017209364A1 (de) |
| WO (1) | WO2018219555A1 (de) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100011774A1 (en) * | 2008-07-15 | 2010-01-21 | General Electric Company | Method of refurbishing a seal land on a turbomachine transition piece and a refurbished transition piece |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3877730A (en) * | 1974-02-12 | 1975-04-15 | Atomic Energy Commission | Method of repairing a flange face of a clamped-flange sealing-ring type pipe coupling |
| EP0330769B1 (de) * | 1988-03-01 | 1992-12-30 | Cooper Industries, Inc. | Rohrverbindung mit Dichtung, Verfahren zur Dichtungsreparatur und Einsatzreparaturteil |
| US4924581A (en) * | 1988-11-22 | 1990-05-15 | Techniair, Inc. | Turbine air seal repair process |
| JP2004202544A (ja) * | 2002-12-25 | 2004-07-22 | Daido Steel Co Ltd | 異形断面をもつ多角形環状体部品の製造方法 |
| GB0907278D0 (en) * | 2009-04-29 | 2009-06-10 | Rolls Royce Plc | A seal arrangement and a method of repairing a seal arrangement |
| DE102011087207A1 (de) | 2011-11-28 | 2013-05-29 | Aktiebolaget Skf | Labyrinthdichtung mit unterschiedlich verschleißenden Labyrinthringen |
| US20160067825A1 (en) * | 2014-09-10 | 2016-03-10 | Caterpillar Inc. | Laser cladding mechanical face seals |
-
2017
- 2017-06-02 DE DE102017209364.1A patent/DE102017209364A1/de not_active Withdrawn
-
2018
- 2018-04-20 US US16/617,616 patent/US11286777B2/en active Active
- 2018-04-20 WO PCT/EP2018/060139 patent/WO2018219555A1/de not_active Ceased
- 2018-04-20 EP EP18723421.6A patent/EP3615263A1/de not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100011774A1 (en) * | 2008-07-15 | 2010-01-21 | General Electric Company | Method of refurbishing a seal land on a turbomachine transition piece and a refurbished transition piece |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102017209364A1 (de) | 2018-12-06 |
| US11286777B2 (en) | 2022-03-29 |
| US20200200010A1 (en) | 2020-06-25 |
| WO2018219555A1 (de) | 2018-12-06 |
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Legal Events
| Date | Code | Title | Description |
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| STAA | Information on the status of an ep patent application or granted ep patent |
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| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
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| 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 |
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| STAA | Information on the status of an ep patent application or granted ep patent |
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| 17P | Request for examination filed |
Effective date: 20191108 |
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| 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 |
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| AX | Request for extension of the european patent |
Extension state: BA ME |
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| DAV | Request for validation of the european patent (deleted) | ||
| DAX | Request for extension of the european patent (deleted) | ||
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: SIEMENS ENERGY GLOBAL GMBH & CO. KG |
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| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
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| 17Q | First examination report despatched |
Effective date: 20221219 |
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| STAA | Information on the status of an ep patent application or granted ep patent |
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| 18D | Application deemed to be withdrawn |
Effective date: 20241101 |