DE10250208A1 - Assembly to stabilise flame development in a lean-burn gas turbine engine uses concentric array of turbolators downstream from turbine vanes - Google Patents
Assembly to stabilise flame development in a lean-burn gas turbine engine uses concentric array of turbolators downstream from turbine vanes Download PDFInfo
- Publication number
- DE10250208A1 DE10250208A1 DE2002150208 DE10250208A DE10250208A1 DE 10250208 A1 DE10250208 A1 DE 10250208A1 DE 2002150208 DE2002150208 DE 2002150208 DE 10250208 A DE10250208 A DE 10250208A DE 10250208 A1 DE10250208 A1 DE 10250208A1
- Authority
- DE
- Germany
- Prior art keywords
- glass
- ceramic plate
- zone
- plate according
- glass ceramic
- 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- Withdrawn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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
- F23D11/36—Details, e.g. burner cooling means, noise reduction means
- F23D11/40—Mixing tubes or chambers; Burner heads
- F23D11/408—Flow influencing devices in the air tube
-
- 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
- F23R3/02—Continuous combustion chambers using liquid or gaseous fuel characterised by the air-flow or gas-flow configuration
- F23R3/04—Air inlet arrangements
- F23R3/10—Air inlet arrangements for primary air
- F23R3/12—Air inlet arrangements for primary air inducing a vortex
-
- 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
- F23R3/02—Continuous combustion chambers using liquid or gaseous fuel characterised by the air-flow or gas-flow configuration
- F23R3/16—Continuous combustion chambers using liquid or gaseous fuel characterised by the air-flow or gas-flow configuration with devices inside the flame tube or the combustion chamber to influence the air or gas flow
- F23R3/18—Flame stabilising means, e.g. flame holders for after-burners of jet-propulsion plants
Abstract
Description
Die Erfindung betrifft eine Glas- oder Glaskeramikplatte mit wenigstens einer zu beheizenden Zone, insbesondere Koch, -Grill- oder Warmhalte-Zone, und einer unter der Unterseite der Zone vorgesehenen elektrischen Heizeinheit.The invention relates to a glass or glass ceramic plate with at least one zone to be heated, especially cooking, grill or keep-warm zone, and one under the bottom electric heating unit provided in the zone.
Derartige Geräte sind marktbekannt. Aufgrund der ebenen, glatten und porenfreien Oberfläche der Glas- oder Glaskeramikplatte ist einem einfache Reinigungsmöglichkeit gegeben. Beheizt werden die Koch-, Grill- oder Warmhaltezonen nach dem Stand der Technik mit Strahlungsheizkörpern, die spiralig gewendelte Widerstandsdrähte oder Rohrheizkörper oder Heizfolien oder Halogenstrahler aufweisen. Zum Schutz der Glas- oder Glaskeramikplatte vor Überhitzung ist ein Temperaturbegrenzer vorgesehen. Für den Kochbetrieb ist eine Abschalttemperatur von 560°C bis 600°C gewählt. Bei einer Warmhaltezone ist eine Abschalttemperatur von etwa 100°C bis 150°C gewählt.Such devices are known on the market. by virtue of the flat, smooth and non-porous surface of the glass or glass ceramic plate is an easy cleaning option given. The cooking, grill or keep-warm zones are reheated the state of the art with radiant heaters that spiraled resistance wires or tubular heater or have heating foils or halogen lamps. To protect the glass or glass ceramic plate before overheating a temperature limiter is provided. For cooking, there is one Switch-off temperature of 560 ° C up to 600 ° C selected. A shutdown temperature of around 100 ° C to 150 ° C is selected for a warming zone.
Die Temperaturbegrenzer sind aufwändig. Ihre Kosten liegen in der gleichen Größenordnung wie die Kosten der Heizeinheit. Will man Temperaturbegrenzer vermeiden, dann könnte die spezifische Heizleistung der Heizeinheit so niedrig ausgelegt werden, dass in allen Betriebszuständen ein Überhitzen der Glas- oder Glaskeramikplatte sicher vermieden ist. Dies hätte jedoch den Nachteil, dass die Aufheizzeit sehr lang ist und der Wärmenachschub beim Aufstellen eines kalten Kochgeschirrs sehr träge ist.The temperature limiters are complex. Your Costs are of the same order of magnitude as the cost of the heating unit. If you want to avoid temperature limiters, then could the specific heating output of the heating unit should be designed so low that in all operating conditions an overheating the glass or glass ceramic plate is safely avoided. However, this would have been the disadvantage that the heating-up time is very long and the heat replenishment is very sluggish when setting up a cold cookware.
Aufgabe der Erfindung ist es, eine Glas- oder Glaskeramikplatte der eingangs genannten Art vorzuschlagen, deren Heizeinheit eigensicher arbeitet und trotz kurzer Aufheizzeit nicht zu einer Überhitzung der Glas- oder Glaskeramikplatte führt, wobei ein Temperaturbegrenzer nicht erforderlich ist.The object of the invention is a Propose glass or glass ceramic plate of the type mentioned at the outset, whose heating unit works intrinsically safe and despite a short heating-up time not overheating leads the glass or glass ceramic plate, with a temperature limiter is not required.
Obige Aufgabe ist durch die Merkmale des Anspruchs 1 gelöst. Durch das PTC-Verhalten (Positiver Temperaturkoeffizient) des Widerstands-Heizelements ist erreicht, dass die betreffende Zone der Glas- oder Glaskeramikplatte zunächst schnell aufgeheizt wird, wonach dann der elektrische Widerstand des Heizelements so groß wird, dass keine wesentliche weitere Erhitzung der betroffenen Zone erfolgt. Dadurch ist die Glas- oder Glaskeramikplatte, ohne dass ein Temperaturbegrenzer erforderlich ist, gegen Überhitzung geschützt.The above task is due to the characteristics of claim 1 solved. Due to the PTC behavior (positive temperature coefficient) of the resistance heating element achieved that zone of the glass or glass ceramic plate in question first is heated quickly, then the electrical resistance of the heating element becomes so large that there is no significant further heating of the affected zone. This makes the glass or glass ceramic plate without a temperature limiter is required against overheating protected.
Der beschriebene Aufbau ist preiswert und robust. Die Geometrie einer solchen Heizeinheit lässt sich leicht an unterschiedliche Formen der betreffenden Zone anpassen.The structure described is inexpensive and robust. The geometry of such a heating unit can be easily adapt to different shapes of the zone in question.
Vorzugsweise ist die Heizeinheit durch Federmittel an die Unterseite gedrückt oder an die Unterseite angeklebt. Zur Verbesserung der Wärmeübertragung von der Heizeinheit auf die Zone kann eine Wärmeleitpastenschicht vorgesehen sein.The heating unit is preferred pressed by spring means to the bottom or to the bottom glued. To improve heat transfer from the heating unit a thermal paste layer can be applied to the zone be provided.
Die Heizeinheit kann von einem flächigen, metallischen, wärmeleitenden Trägerkörper gebildet sein, der an die Form der Zone angepasst ist und flächig an der Unterseite der Zone anliegt. An oder in dem Trägerkörper ist das Heizelement oder sind die Heizelemente angeordnet.The heating unit can be of a flat, metallic, thermally conductive Carrier body be formed, which is adapted to the shape of the zone and flat on the underside of the Zone applies. Is on or in the carrier body the heating element or the heating elements are arranged.
Es ist auch möglich, die Heizeinheit in Dickschichttechnik auf die Unterseite der Zone aufzubringen.It is also possible to use the heating unit in thick film technology to apply to the bottom of the zone.
Weitere vorteilhafte Ausgestaltungen ergeben sich aus der folgenden Beschreibung und den Unteransprüchen. In der Zeichnung zeigen:Further advantageous configurations result from the following description and the subclaims. In the drawing shows:
Eine Glas- oder Glaskeramikplatte
Die Kochzonen
Die Kochzonen
Die
An der Unterseite
Der Flächenbereich
Bei der Ausführung nach
Bei der Ausführung nach
Bei der Ausführung nach
Beim Ausführungsbeispiel nach
Das Heizelement
Das Heizelement
Die Aufheizgeschwindigkeit der Zone
Bei einer anderen Ausführung ist
es möglich, die
Heizeinheit
Claims (16)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2002150208 DE10250208A1 (en) | 2002-10-28 | 2002-10-28 | Assembly to stabilise flame development in a lean-burn gas turbine engine uses concentric array of turbolators downstream from turbine vanes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2002150208 DE10250208A1 (en) | 2002-10-28 | 2002-10-28 | Assembly to stabilise flame development in a lean-burn gas turbine engine uses concentric array of turbolators downstream from turbine vanes |
Publications (2)
Publication Number | Publication Date |
---|---|
DE10250208A1 true DE10250208A1 (en) | 2004-06-03 |
DE10250208A9 DE10250208A9 (en) | 2004-12-23 |
Family
ID=32239932
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2002150208 Withdrawn DE10250208A1 (en) | 2002-10-28 | 2002-10-28 | Assembly to stabilise flame development in a lean-burn gas turbine engine uses concentric array of turbolators downstream from turbine vanes |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE10250208A1 (en) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1059244B (en) * | 1958-06-26 | 1959-06-11 | Kloeckner Humboldt Deutz Ag | Gas turbine combustor |
US5315815A (en) * | 1990-12-24 | 1994-05-31 | United Technologies Corporation | Mechanism for controlling the rate of mixing in combusting flows |
EP0619456A1 (en) * | 1993-04-08 | 1994-10-12 | ABB Management AG | Fuel supply system for combustion chamber |
EP0623786A1 (en) * | 1993-04-08 | 1994-11-09 | ABB Management AG | Combustion chamber |
EP0745809A1 (en) * | 1995-06-02 | 1996-12-04 | ABB Management AG | Vortex generator for combustion chamber |
EP0775869A2 (en) * | 1995-11-23 | 1997-05-28 | Abb Research Ltd. | Premix burner |
US5638682A (en) * | 1994-09-23 | 1997-06-17 | General Electric Company | Air fuel mixer for gas turbine combustor having slots at downstream end of mixing duct |
-
2002
- 2002-10-28 DE DE2002150208 patent/DE10250208A1/en not_active Withdrawn
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1059244B (en) * | 1958-06-26 | 1959-06-11 | Kloeckner Humboldt Deutz Ag | Gas turbine combustor |
US5315815A (en) * | 1990-12-24 | 1994-05-31 | United Technologies Corporation | Mechanism for controlling the rate of mixing in combusting flows |
EP0619456A1 (en) * | 1993-04-08 | 1994-10-12 | ABB Management AG | Fuel supply system for combustion chamber |
EP0623786A1 (en) * | 1993-04-08 | 1994-11-09 | ABB Management AG | Combustion chamber |
US5638682A (en) * | 1994-09-23 | 1997-06-17 | General Electric Company | Air fuel mixer for gas turbine combustor having slots at downstream end of mixing duct |
EP0745809A1 (en) * | 1995-06-02 | 1996-12-04 | ABB Management AG | Vortex generator for combustion chamber |
EP0775869A2 (en) * | 1995-11-23 | 1997-05-28 | Abb Research Ltd. | Premix burner |
Also Published As
Publication number | Publication date |
---|---|
DE10250208A9 (en) | 2004-12-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8197 | Reprint of an erroneous patent document | ||
OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8130 | Withdrawal |