EP0960308A1 - Gasturbinenanlage mit einem mit keramiksteinen ausgekleideten brennkammergehäuse - Google Patents
Gasturbinenanlage mit einem mit keramiksteinen ausgekleideten brennkammergehäuseInfo
- Publication number
- EP0960308A1 EP0960308A1 EP98909340A EP98909340A EP0960308A1 EP 0960308 A1 EP0960308 A1 EP 0960308A1 EP 98909340 A EP98909340 A EP 98909340A EP 98909340 A EP98909340 A EP 98909340A EP 0960308 A1 EP0960308 A1 EP 0960308A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- ceramic
- gas turbine
- coating
- combustion chamber
- layer
- 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
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
- F01D5/12—Blades
- F01D5/28—Selecting particular materials; Particular measures relating thereto; Measures against erosion or corrosion
- F01D5/288—Protective coatings for blades
-
- 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
Definitions
- the invention relates to a gas turbine system with a combustion chamber housing which is lined on the inside with solid ceramic stones, with a rotor provided with rotor blades and with a housing provided with guide vanes, in particular at least the first blades on the turbine side carrying a ceramic thermal barrier coating.
- Such a gas turbine is known for example from DE-OS 43 43 319.
- the combustion chamber housings in particular their flame tubes, are designed to be extremely heat-resistant in modern gas turbines.
- the inner walls can be covered with ceramic insulation layers or provided with a shield made of solid ceramic stones.
- the blades of the turbine part of the gas turbine systems are often provided with ceramic thermal barrier layers as thermal protective layers, which consist, for example, of yttrium oxide-stabilized zirconium oxide layers.
- the present invention is therefore based on the object of taking measures in a gas turbine of the type mentioned at the outset, on the one hand to protect the combustion chamber and the blades from thermal overload and on the other hand to extend the life of the turbine blades.
- the object is achieved in that the ceramic stones are provided on their surface with a coating.
- the ceramic stones have the advantage over heat shield plates made of other materials, for example super alloys, that higher material temperatures are possible and permissible. Only the stone fasteners need to be cooled. Because of the higher permissible material temperatures, for example, this leads to incomplete combustion of the combustion chamber lining
- Shovels act on these like projectiles and have a strong abrasive effect.
- the coating of the ceramic stones according to the invention effectively prevents the detachment of such particles from the surface of the ceramic stones. It seems particularly favorable here to coat the ceramic stones before installation in the combustion chamber housing. For this purpose, the coating must be such that good adhesion to the ceramic stones and good cohesion of the layer is ensured in order to avoid flaking off under thermal alternating stresses.
- the coating of the ceramic stones thus forms a layer for fixing the surface particles. This enables the use of ceramic thermal barrier layers on the blades in combination with solid ceramic stones as the combustion chamber lining.
- An embodiment of the invention provides that the coating consists of a metallic material and is applied in particular by means of vacuum plasma spraying (VPS).
- VPS vacuum plasma spraying
- Different corrosion protection layers which can be processed by VPS can be used for this purpose, e.g. B. the type M Cr A1Y, where M is Ni or Co.
- a combination coating consisting of a metallic bond coat as an adhesion promoter with an overlying ceramic cover layer could also be used.
- the ceramic cover layer can be partially applied by air plasma spraying.
- the slight difference in the thermal expansion coefficients between ceramic stones and a ceramic APS coating has a favorable effect on the resistance to alternating thermal stress.
- the execution of a ceramic layer as a thermal barrier layer has the additional advantage that the cooling air requirement of the combustion chamber lining is further reduced.
- Conventional thermal insulation layers such as Yr 2 0 3 - stabilized Zr0 2 or Si0 2 or Al 2 0 3 are conceivable as ceramic coatings.
- the invention can also be advantageously configured in that the ceramic cover layer is applied by means of the air plasma spraying process (APS).
- APS air plasma spraying process
- the APS procedure is a cheaper alternative to the VPS procedure.
- the multilayer coating of the ceramic stones can also be advantageous for thermal reasons or for reasons of better cohesion of the layer.
- both the binding layer and the outer coating can be designed as a graded layer, at that the thermal expansion behavior and the chemical composition change constantly over the layer thickness.
- FIG. 1 schematically shows a longitudinal section of part of a gas turbine
- Figure 2 schematically shows a section of the combustion chamber housing wall with distorted proportions in order to make the coating recognizable.
- FIG. 1 schematically shows a gas turbine system according to the invention in a longitudinal section with a housing 1, in which fixed guide blades 3, 4 are fastened, and a rotor 2, to which rotor blades 5, 6 are fastened.
- the fuel injected via the burners 14, 15 is burned with the air from the compressor 16.
- Compressor 16 is the input part of the gas turbine system in which incoming air (arrows 17, 18) is compressed before it flows into combustion chamber 7.
- a generator 20 for generating electrical energy is driven by means of the connecting shaft 19.
- FIG. 2 the surface area of the annular combustion chamber is shown in simplified cross-section.
- ceramic stones 10 are attached to the combustion chamber housing wall 11, which consists for example of metal.
- the ceramic stones 10 consist for example of silicon or aluminum oxide.
- a coating of the ceramic stones 10 is shown enlarged in two layers, of which the lower layer forms a binding layer (bond coat) 12, the upper layer forms a ceramic layer 13 which adheres particularly well to the binding layer 12.
- the layers 12 and 13 together form a solid layer covering the ceramic stones 10, which binds any particles detached from the surface of the ceramic stones 10. Such particles can therefore have no erosive effect on the thermal barrier layer of the turbine blades of the housing or of the rotor.
- the adhesion-promoting layer 12 preferably consists of a metal-chromium-aluminum-yttrium alloy (MCrAlY), while the heat insulation layer 13 preferably consists of yttrium oxide-stabilized zirconium oxide, SiO 2 or Al 2 O 3 .
- a single-layer coating 22 of a ceramic stone is shown as an example in area 21 of FIG. 2, the coating consisting of ceramic.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Combustion & Propulsion (AREA)
- Materials Engineering (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Coating By Spraying Or Casting (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
- Solid-Fuel Combustion (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19704976A DE19704976C2 (de) | 1997-01-29 | 1997-01-29 | Gasturbinenanlage mit einem mit Keramiksteinen ausgekleideten Brennkammergehäuse |
DE19704976 | 1997-01-29 | ||
PCT/DE1998/000324 WO1998034068A1 (de) | 1997-01-29 | 1998-01-29 | Gasturbinenanlage mit einem mit keramiksteinen ausgekleideten brennkammergehäuse |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0960308A1 true EP0960308A1 (de) | 1999-12-01 |
EP0960308B1 EP0960308B1 (de) | 2001-12-05 |
Family
ID=7819815
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98909340A Expired - Lifetime EP0960308B1 (de) | 1997-01-29 | 1998-01-29 | Gasturbinenanlage mit einem mit keramiksteinen ausgekleideten brennkammergehäuse |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0960308B1 (de) |
JP (1) | JP4294736B2 (de) |
DE (2) | DE19704976C2 (de) |
RU (1) | RU2178530C2 (de) |
UA (1) | UA41485C2 (de) |
WO (1) | WO1998034068A1 (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1072573A1 (de) | 1999-07-30 | 2001-01-31 | Siemens Aktiengesellschaft | Verfahren zur Herstellung eines feuerfesten Bauteils und keramischer Brennkammerstein |
PL200773B1 (pl) * | 2003-04-18 | 2009-02-27 | System Spo & Lstrok Ka Akcyjna | Sposób wykonywania antykorozyjnej powłoki na ekranach grzewczych komór paleniskowych |
US20100285415A1 (en) * | 2007-11-23 | 2010-11-11 | Boettcher Andreas | Burner Element and Burner Having Aluminum Oxide Coating and Method for Coating a Burner Element |
EP2169311A1 (de) * | 2008-09-29 | 2010-03-31 | Siemens Aktiengesellschaft | Materialmischung zur Herstellung eines Feuerfestwerkstoffes, Feuerfestformkörper und Verfahren zu seiner Herstellung |
EP2233835A1 (de) * | 2009-03-23 | 2010-09-29 | Siemens Aktiengesellschaft | Mit Keramikeinsätzen hartgelötete Brennkammer |
ITMI20111519A1 (it) * | 2011-08-08 | 2013-02-09 | Ansaldo Energia Spa | Piastrella di materiale ceramico per il rivestimento di camere di combustione, in particolare di turbine a gas, e relativo metodo di fabbricazione |
RU2554690C1 (ru) * | 2014-07-01 | 2015-06-27 | Акционерное общество "Военно-промышленная корпорация "Научно-производственное объединение машиностроения"(АО"ВПК"НПО машиностроения") | Камера сгорания силовой установки крылатой ракеты |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL69245C (de) * | 1946-01-09 | |||
US2763919A (en) * | 1950-07-28 | 1956-09-25 | Thompson Prod Inc | Coated refractory body |
US4159357A (en) * | 1975-03-13 | 1979-06-26 | Motoren- Und Turbinen-Union Munchen Gmbh | Process for surface treating parts made of ceramic material |
DE2630247A1 (de) * | 1976-07-06 | 1978-01-19 | Daimler Benz Ag | Gasleitung mit einer waermeisolierenden auskleidung |
DE3446649A1 (de) * | 1984-12-20 | 1986-06-26 | G + H Montage Gmbh, 6700 Ludwigshafen | Auskleidung fuer hochtemperatur-gasturbinen |
DE3638658C1 (de) * | 1986-11-12 | 1988-04-21 | Daimler Benz Ag | Waermedaemmende Auskleidung fuer eine Gasturbine |
AU2211488A (en) * | 1987-10-01 | 1989-04-06 | Gte Laboratories Incorporated | Oxidation resistant, high temperature thermal cyling resistant coatings on silicon-based substrates and process for the production thereof |
US5169674A (en) * | 1990-10-23 | 1992-12-08 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Method of applying a thermal barrier coating system to a substrate |
US5391404A (en) * | 1993-03-15 | 1995-02-21 | The United States Of America As Represented By The National Aeronautics And Space Administration | Plasma sprayed mullite coatings on silicon-base ceramics |
DE4343319A1 (de) * | 1993-12-18 | 1995-06-22 | Abb Patent Gmbh | Brennkammer mit keramischer Auskleidung |
CH690582A5 (de) * | 1995-06-26 | 2000-10-31 | Gen Electric | Verbundmaterial mit durch mehrere Ueberzüge geschütztem Wärmesperren-Ueberzug. |
-
1997
- 1997-01-29 DE DE19704976A patent/DE19704976C2/de not_active Expired - Lifetime
-
1998
- 1998-01-29 RU RU99118768/06A patent/RU2178530C2/ru active
- 1998-01-29 UA UA99074363A patent/UA41485C2/uk unknown
- 1998-01-29 JP JP53245998A patent/JP4294736B2/ja not_active Expired - Lifetime
- 1998-01-29 WO PCT/DE1998/000324 patent/WO1998034068A1/de active IP Right Grant
- 1998-01-29 DE DE59802328T patent/DE59802328D1/de not_active Expired - Lifetime
- 1998-01-29 EP EP98909340A patent/EP0960308B1/de not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO9834068A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE19704976C2 (de) | 1999-02-25 |
DE59802328D1 (de) | 2002-01-17 |
EP0960308B1 (de) | 2001-12-05 |
JP4294736B2 (ja) | 2009-07-15 |
UA41485C2 (uk) | 2001-09-17 |
RU2178530C2 (ru) | 2002-01-20 |
WO1998034068A1 (de) | 1998-08-06 |
JP2001509874A (ja) | 2001-07-24 |
DE19704976A1 (de) | 1998-07-30 |
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