EP0916897A2 - Bouclier thermique - Google Patents

Bouclier thermique Download PDF

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Publication number
EP0916897A2
EP0916897A2 EP98811060A EP98811060A EP0916897A2 EP 0916897 A2 EP0916897 A2 EP 0916897A2 EP 98811060 A EP98811060 A EP 98811060A EP 98811060 A EP98811060 A EP 98811060A EP 0916897 A2 EP0916897 A2 EP 0916897A2
Authority
EP
European Patent Office
Prior art keywords
felt
heat shield
fibers
intermetallic
heat
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
EP98811060A
Other languages
German (de)
English (en)
Other versions
EP0916897B1 (fr
EP0916897A3 (fr
Inventor
Mohamed Dr. Nazmy
Martin Scheu
Markus Staubli
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 Asea Brown Boveri Ltd
Asea Brown Boveri AB
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 ABB Asea Brown Boveri Ltd, Asea Brown Boveri AB filed Critical ABB Asea Brown Boveri Ltd
Publication of EP0916897A2 publication Critical patent/EP0916897A2/fr
Publication of EP0916897A3 publication Critical patent/EP0916897A3/fr
Application granted granted Critical
Publication of EP0916897B1 publication Critical patent/EP0916897B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/08—Cooling; Heating; Heat-insulation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23R—GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
    • F23R3/00—Continuous combustion chambers using liquid or gaseous fuel
    • F23R3/007—Continuous combustion chambers using liquid or gaseous fuel constructed mainly of ceramic components
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2201/00—Metals
    • F05C2201/04—Heavy metals
    • F05C2201/0433—Iron group; Ferrous alloys, e.g. steel
    • F05C2201/0466—Nickel
    • 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
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/20—Oxide or non-oxide ceramics
    • F05D2300/21—Oxide ceramics
    • F05D2300/2118—Zirconium oxides
    • 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
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/60—Properties or characteristics given to material by treatment or manufacturing
    • F05D2300/614—Fibres or filaments
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12014—All metal or with adjacent metals having metal particles
    • Y10T428/12153—Interconnected void structure [e.g., permeable, etc.]
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12444—Embodying fibers interengaged or between layers [e.g., paper, etc.]
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12479—Porous [e.g., foamed, spongy, cracked, etc.]
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12535—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.] with additional, spatially distinct nonmetal component
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12535—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.] with additional, spatially distinct nonmetal component
    • Y10T428/12611—Oxide-containing component
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12535—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.] with additional, spatially distinct nonmetal component
    • Y10T428/12611—Oxide-containing component
    • Y10T428/12618—Plural oxides
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12771—Transition metal-base component
    • Y10T428/12861—Group VIII or IB metal-base component
    • Y10T428/12944—Ni-base component
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12771—Transition metal-base component
    • Y10T428/12861—Group VIII or IB metal-base component
    • Y10T428/12951—Fe-base component
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
    • Y10T428/131—Glass, ceramic, or sintered, fused, fired, or calcined metal oxide or metal carbide containing [e.g., porcelain, brick, cement, etc.]

Definitions

  • the invention is based on a heat shield according to the preamble of the first Claim.
  • Heat shields for example for use in thermal turbomachines and combustion chambers. These heat shields usually consist of a carrier material and a heat insulation layer which is connected to the carrier material via a binding layer. This bonding layer is applied in a vacuum-plasma process, which limits the size of the workable parts by the size of the vacuum chamber and makes production more expensive. Another problem is that at application temperatures above 900 ° C the bonding layer usually fails and the thermal insulation layer falls off. This will cause the heat shield to fail. From DE 3327216 A a heat protection layer made of a metallic felt which is infiltrated with zirconium oxide and filled up by means of CVD has become known.
  • the metallic felt serves as a framework for the zirconium oxide coating.
  • the disadvantage of this protective layer are the high manufacturing costs and the insufficient properties with regard to heat and oxidation resistance, especially the structure of the framework.
  • the heat protection layer can also only with great difficulty, i.e. by means of large cooling air consumption can be cooled.
  • the invention is based, with a heat shield of the aforementioned object Way of providing a cheap and efficient heat shield.
  • the heat shield is made of a felt-like material consists of compressed and sintered intermetallic fibers.
  • intermetallic fibers based felt-like material can be used at temperatures above 1000 ° C because the intermetallic fibers have a high heat resistance, a have high resistance to oxidation and advantageous thermal conductivity. These properties can also be determined by the selected intermetallic phase be set specifically and adapted to the respective conditions. Through the Porosity of the felt-like material can be a very efficient, low cooling air consuming Cooling are made possible.
  • a heat shield 1 is shown in the single figure.
  • a heat shield can Used in combustion chambers, thermal turbomachines such as gas turbines, etc. become.
  • the heat shield consists of a carrier material 2, one on top of it arranged felt-like material 3 of intermetallic fibers and one Thermal insulation layer 4.
  • the carrier material 2, which is usually metallic is, can have cooling channels 5.
  • the thermal insulation layer 4 is, for example made of zirconium oxide which is partially mixed with yttrium oxide, calcium oxide or magnesium oxide or has been fully stabilized.
  • the felt-like material 3 has become known, for example, from "VDI Report 1151, 1995, Metallische Hoch Temperaturfasem by Melt Extraction - Production, Properties and Applications, Stephani et al., Page 175ff". Fibers are produced there using the melt extraction process, the fibers are pressed and sintered. The felt-like material thus formed is used as a filter and as a catalyst carrier. According to the invention, this felt-like material is now made from intermetallic fibers. Intermetallic phases based on iron or nickel are advantageously used for this purpose. These have high heat resistance, high oxidation resistance and advantageous thermal conductivity. In addition, the abovementioned properties can be adjusted over a wide range by selecting an appropriate intermetallic phase. The felt-like material made of intermetallic fibers can also be produced very cheaply.
  • the porosity of the felt-like material can be influenced by the parameters of the manufacturing process how press pressure and sintering parameters are set.
  • the felt-like material made of intermetallic fibers is now on the carrier material attached.
  • the carrier material serves as a fastening and stabilizing agent for the felt-like material.
  • Thermal insulation layer applied this is done by known methods such as for example plasma sprays.
  • the thermal insulation layer adheres excellently the rough and porous surface of the felt-like material.
  • the thermal barrier layer reduces the temperature of the surface, the porous felt-like material is used for cooling. If the insulation layer fails, that is, if it is no longer available, the remaining is enough felt-like material due to the excellent properties in terms of heat resistance, Resistance to oxidation and advantageous thermal conductivity the intermetallic phases are still out. Even the felt-like material without a thermal barrier coating can thus be used as a heat shield, whereby here, however, in comparison to the additional use of a thermal barrier coating the cooling air consumption is somewhat higher.
  • the invention is not limited to that shown and described Embodiment limited.
  • the carrier material can also be omitted be when the felt-like material by a suitable choice of material and the porosity has sufficient inherent strength.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Laminated Bodies (AREA)
  • Thermal Insulation (AREA)
  • Powder Metallurgy (AREA)
EP98811060A 1997-11-14 1998-10-22 Bouclier thermique Expired - Lifetime EP0916897B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19750517 1997-11-14
DE19750517A DE19750517A1 (de) 1997-11-14 1997-11-14 Hitzeschild

Publications (3)

Publication Number Publication Date
EP0916897A2 true EP0916897A2 (fr) 1999-05-19
EP0916897A3 EP0916897A3 (fr) 2000-10-25
EP0916897B1 EP0916897B1 (fr) 2003-06-04

Family

ID=7848762

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98811060A Expired - Lifetime EP0916897B1 (fr) 1997-11-14 1998-10-22 Bouclier thermique

Country Status (4)

Country Link
US (1) US6492034B1 (fr)
EP (1) EP0916897B1 (fr)
JP (1) JPH11236995A (fr)
DE (2) DE19750517A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1126221A1 (fr) * 2000-02-17 2001-08-22 Siemens Aktiengesellschaft Tuile réfractaire rembourrée pour révêtement d'une chambre de combustion de turbies à gaz
US7141128B2 (en) 2002-08-16 2006-11-28 Alstom Technology Ltd Intermetallic material and use of this material

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005001502A1 (de) * 2005-01-10 2006-07-20 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Strahlungsschutzschirm
US20100272953A1 (en) * 2009-04-28 2010-10-28 Honeywell International Inc. Cooled hybrid structure for gas turbine engine and method for the fabrication thereof
DE102015215144B4 (de) * 2015-08-07 2017-11-09 MTU Aero Engines AG Vorrichtung und Verfahren zum Beeinflussen der Temperaturen in Innenringsegmenten einer Gasturbine

Citations (1)

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Publication number Priority date Publication date Assignee Title
DE3327216A1 (de) 1983-07-28 1985-02-07 MTU Motoren- und Turbinen-Union München GmbH, 8000 München Verfahren zur anordnung einer waermedaemmschicht auf einem metallsubstrat

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Patent Citations (1)

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Publication number Priority date Publication date Assignee Title
DE3327216A1 (de) 1983-07-28 1985-02-07 MTU Motoren- und Turbinen-Union München GmbH, 8000 München Verfahren zur anordnung einer waermedaemmschicht auf einem metallsubstrat

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
STEPHANI ET AL: "METALLISCHE HOCHTEMPERATURFASERN DURCH SCHMELZEXTRAKTION- HERSTELLUNG, EIGENSCHAFTEN UND ANWENDUNGEN", VDI BERICHT 1151, 1 January 1995 (1995-01-01), pages 175FF

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1126221A1 (fr) * 2000-02-17 2001-08-22 Siemens Aktiengesellschaft Tuile réfractaire rembourrée pour révêtement d'une chambre de combustion de turbies à gaz
WO2001061250A1 (fr) * 2000-02-17 2001-08-23 Siemens Aktiengesellschaft Pierre de protection thermique et dispositif de garniture d'une paroi de chambre de combustion et turbine a gaz
US7141128B2 (en) 2002-08-16 2006-11-28 Alstom Technology Ltd Intermetallic material and use of this material

Also Published As

Publication number Publication date
JPH11236995A (ja) 1999-08-31
US6492034B1 (en) 2002-12-10
EP0916897B1 (fr) 2003-06-04
DE59808608D1 (de) 2003-07-10
EP0916897A3 (fr) 2000-10-25
DE19750517A1 (de) 1999-05-20

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