DE202004020230U1 - Heat-exchanging device for use in microwave appliance, has gas-air-mixing outlets distributed over circumference of pre-mixing burner, where distribution and number of outlets correspond to cooling effect of cool stream from burner chamber - Google Patents
Heat-exchanging device for use in microwave appliance, has gas-air-mixing outlets distributed over circumference of pre-mixing burner, where distribution and number of outlets correspond to cooling effect of cool stream from burner chamber Download PDFInfo
- Publication number
- DE202004020230U1 DE202004020230U1 DE200420020230 DE202004020230U DE202004020230U1 DE 202004020230 U1 DE202004020230 U1 DE 202004020230U1 DE 200420020230 DE200420020230 DE 200420020230 DE 202004020230 U DE202004020230 U DE 202004020230U DE 202004020230 U1 DE202004020230 U1 DE 202004020230U1
- Authority
- DE
- Germany
- Prior art keywords
- burner
- heat exchanger
- combustion chamber
- gas
- exchanger device
- 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.)
- Expired - Lifetime
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/32—Arrangements of ducts for hot gases, e.g. in or around baking ovens
- F24C15/322—Arrangements of ducts for hot gases, e.g. in or around baking ovens with forced circulation
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Gas Burners (AREA)
Abstract
Description
Die Erfindung betrifft ein Dampf-Gargerät, Backgerät und kombiniertes Mikrowellengerät zur thermischen Behandlung von Nahrungsmitteln gemäß Oberbegriff des Anspruchs 1 und 2.The The invention relates to a steam cooking appliance, baking apparatus and combined microwave oven for thermal Treatment of food according to the preamble of the claim 1 and 2.
Aus
der
Der Brenner ist in einer Brennkammer eingebaut, die von einer Strömung des Umwälzungs-Lüfterrads umgespült ist. Durch diese einseitige Anströmung der Kühlluft kommt es zur Bildung von Strömungsschatten, die Quelle der lokalen Überhitzung sind. Diese Überhitzungen haben negativen Einfluss nicht nur auf die Lebensdauer von der Brennkammer und dem Brenner, sondern auch auf die Garqualität. Die hohe Oberflächentemperatur führt zu intensiver Fettverbrennung und zu Bildung von Ozon.Of the Burner is installed in a combustion chamber, by a flow of the Umwälzungs-impeller vice rinsed is. This one-sided flow of the cooling air causes it to form of flow shadows, are the source of local overheating. These overheating have a negative impact not only on the life of the combustion chamber and the burner, but also on the cooking quality. The high surface temperature leads to intense fat burning and ozone formation.
Wie in der Beschreibung aufgeführt, weist die, dem Lüfterrad abgewandte Brennkammerseite eine sehr hohe Temperatur auf.As listed in the description, has the, the fan remote combustion chamber side to a very high temperature.
Aus
der
Aufgabe dieser Erfindung ist es, eine Wärmetauschereinrichtung entsprechend dem Oberbegriff des Anspruches 1 und 2 so auszugestalten, dass die thermische Flächenbelastung der Brennkammer von der Brennerseite der Kühlwirkung der von außen wirkenden Umwälzströmung proportional entspricht.task This invention is a heat exchanger device according to the preamble of claim 1 and 2 in such a way, that the thermal surface load the combustion chamber from the burner side of the cooling effect of acting from the outside Circulating flow proportional equivalent.
Diese Aufgabe wird ausgehend von einer Wärmetauschereinrichtung der eingangs erläuterten Art erfindungsgemäß dadurch gelöst, dass der Vormischbrenner als ein an den Enden verschlossenes Rohrteil mit am Umfang ungleichmäßig verteilten Gas-Luft-Gemisch-Austrittsöffnungen ausgebildet ist. Die variable Anzahl und die variable Verteilung der Austrittsöffnungen bezogen auf die Fläche des Brenners, entspricht der Kühlwirkung der von außen auf die Brennkammer wirkenden Kühlströmung auf die angewandten Flächen der Brennkammer.These Task is starting from a heat exchanger device of initially explained type according to the invention thereby solved, that the premix burner as a closed at the ends pipe part with circumferentially unevenly distributed gas-air mixture outlet openings is trained. The variable number and the variable distribution of outlet openings based on the area of the burner, corresponds to the cooling effect the outside the combustion chamber acting cooling flow on the applied surfaces the combustion chamber.
Dadurch wird eine gleichmäßige Verteilung der Oberflächentemperatur von der Brennkammer erreicht, die für den gesamten Modulationsbereich des Vormischbrenners gilt.Thereby will be an even distribution of surface temperature reached from the combustion chamber, covering the entire modulation range of the Premix burner applies.
Bei dieser Ausgestaltung wird das für die Verbrennung zu einhundert Prozent vorgemischte Gas-Luft-Gemisch in den Brenner hineingefördert und an die ungleichmäßig auf dem Brennerumfang verteilten Austrittsöffnungen geleitet, wodurch auch eine auf den Brennerumfang bezogene ungleichmäßige Verteilung der Flamme erfolgt.at This configuration is for the combustion to one hundred percent premixed gas-air mixture conveyed into the burner and to the uneven on passed the burner circumference distributed outlet openings, whereby also an uneven distribution related to the burner circumference the flame takes place.
Die, mit mehreren Abgasausgängen versehene Brennkammer ist durch Trennwände so geteilt, dass die getrennten Bereiche untereinander strömungsmäßig kommunizieren können und dass die Abgasverteilung in die Abgasaustrittstutzen den optimalen wärmetechnischen Wirkungsgrad gewährleistet.The, with several exhaust exits provided combustion chamber is divided by partitions so that the separated Communicate areas with each other fluidly can and that the exhaust gas distribution in the exhaust outlet nozzle the optimal heat engineering Efficiency guaranteed.
Diese Brennkammer-Trennwand stellt einen Strömungswiderstand dar, der neben der Strömungsverteilung auch eine positive Wirkung auf Dämmung der Verbrennungs- und Strömungsgeräusche hat. Die Brennkammer kann durch die Trennwände in so viele Bereiche getrennt werden, wie viele Abgasausgänge sie hat.These Combustor partition represents a flow resistance adjacent to the flow distribution also a positive effect on insulation of the Has combustion and flow noise. The Combustion chamber can be separated by the partitions in so many areas be how many exhaust exits she has.
An die Brennkammer ist zumindest ein Wärmetauscherrohr-System angeschlossen, das um das Lüfterrad spiralförmig umschlugen ist und das sich ausdehnen kann.At the combustion chamber is connected to at least one heat exchanger tube system, that around the fan spirally is overturned and that can expand.
Die Brennkammer wird an die Garraumwand dicht angeschlossen. Der Anschluss erfolgt entweder durch einen, zur Brennkammer-Längsachse senkrecht eingeordneten oder zur Brennkammer-Achse koaxialen (oder parallelen) Anschlussstutzen. Durch diesen Stutzen werden der Brenner und die Zünd- und Überwachungs-Einrichtungen montiert.The Combustion chamber is tightly connected to the cooking chamber wall. The connection takes place either through one, to the combustion chamber longitudinal axis vertically arranged or coaxial to the combustion chamber axis (or parallel) connecting piece. Through this nozzle, the burner and the ignition and monitoring devices mounted.
Der Brenner ist auf eine Brenner-Mischeinrichtung angeschlossen, in der mit Hilfe von Luftgebläse und Gasregelventil das, für die vollständige Verbrennung notwendige Gas-Luft- Mischverhältnis eingestellt wird.Of the Burner is connected to a burner mixer, in the with the help of air blower and gas control valve that, for the complete combustion necessary gas-air mixing ratio set becomes.
Nachfolgend wird die Erfindung anhand von Zeichnungen im einzelnen erläutet. Es zeigen:following The invention will be explained with reference to drawings in detail. It demonstrate:
In
In
de
In
In
Die
Brennkammer
Der
Abgasaustritt
In
der Brennkammer
In
Der
Abgasvolumenstrom ist durch die Brennkammer-Trennwand
In
In
Um
die Abgasvolumenströme
optimal zu verteilen, werden zu der Brennkammer-Trennwand
Die
Brennkammer
In
Aus
den Enden von Wärmetauscherrohern
In
In
In
- 11
- Garraumoven
- 22
- Lüfterradfan
- 33
- Brennkammercombustion chamber
- 3.13.1
- kreisförmige Brennkammercircular combustion chamber
- 3.23.2
- eckige Brennkammersquare combustion chamber
- 3.33.3
- Brennkammer mit einem Abgasausgangcombustion chamber with an exhaust outlet
- 3.43.4
- Brennkammer mit zwei Abgasausgängencombustion chamber with two exhaust exits
- 44
- Verteilung der Flammedistribution the flame
- 55
- Brenner-MischeinrichtungBrenner mixer
- 66
- Anschlussstutzen nicht koaxial zur Brennkammer-Achsespigot not coaxial with the combustion chamber axis
- 77
- Anschlussstutzen koaxial oder parallel zur Brennkammer-spigot coaxial or parallel to the combustion chamber
- Achseaxis
- 88th
- Abgasaustrittexhaust outlet
- 99
- AbgasaustrittstutzenExhaust gas outlet connection
- 9.19.1
- Abgasaustrittstutzen parallel zur Brennkammer-AchseExhaust gas outlet connection parallel to the combustion chamber axis
- 9.29.2
- Abgasaustrittstutzen nicht parallel zur Brennkammer-Exhaust gas outlet connection not parallel to the combustion chamber
- Achseaxis
- 1010
- Brenner (Vormischbrenner)burner (Premix)
- 10.110.1
- abgewinkelter Brennerangled burner
- 10.210.2
- gerader Brennerstraight burner
- 10.310.3
- T-förmiger BrennerT-shaped burner
- 10.410.4
- L-förmiger BrennerL-shaped burner
- 1111
- GasaustrittsöffnungenGas outlet openings
- 11.111.1
- Außen-Ende der Gasaustritts-ÖffnungenOuter end the gas outlet openings
- 11.211.2
- Innen-Ende der Gasaustritts-ÖffnungenInside end the gas outlet openings
- 1212
- Gas-Luft-Gemisch-ZufuhrGas-air mixture supply
- 1313
- Wärmetauscherheat exchangers
- 13.113.1
- Wärmetauscherrohrheat exchanger tube
- 1414
- LuftleitblechAir baffle
- 1515
- Luftströmungairflow
- 1616
- Winkelmass A für gekühlte Oberfläche der Brennkammerprotractor A for cooled surface of the combustion chamber
- 1717
- Exzentrizität des Abgasstutzens zur Brennkammer-AchseEccentricity of the exhaust port to the combustion chamber axis
- 17.117.1
- B:B:
- 17.217.2
- C:C:
- 1818
- Brennkammer-TrennwandCombustion chamber partition
- 1919
- Strömungsdrosselflow throttle
- 2020
- Abgasausgang aus dem Wärmetauscherexhaust outlet from the heat exchanger
- 2121
- Querschnitt-ReduzierungCross-section reduction
Claims (18)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200420020230 DE202004020230U1 (en) | 2004-12-31 | 2004-12-31 | Heat-exchanging device for use in microwave appliance, has gas-air-mixing outlets distributed over circumference of pre-mixing burner, where distribution and number of outlets correspond to cooling effect of cool stream from burner chamber |
DE102005047415A DE102005047415A1 (en) | 2004-10-01 | 2005-09-30 | Device for heat treatment of foodstuff has combustion chamber constructed as distributor exhaust gas chamber so that both non-cooled gases and already cooled gases or part of cooled gases flow through distributor-exhaust gas chamber |
DE102005050948A DE102005050948A1 (en) | 2004-10-23 | 2005-10-22 | Heat exchanger for an oil or gas-heated food oven has removable partition walls |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200420020230 DE202004020230U1 (en) | 2004-12-31 | 2004-12-31 | Heat-exchanging device for use in microwave appliance, has gas-air-mixing outlets distributed over circumference of pre-mixing burner, where distribution and number of outlets correspond to cooling effect of cool stream from burner chamber |
Publications (1)
Publication Number | Publication Date |
---|---|
DE202004020230U1 true DE202004020230U1 (en) | 2006-05-11 |
Family
ID=36500621
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200420020230 Expired - Lifetime DE202004020230U1 (en) | 2004-10-01 | 2004-12-31 | Heat-exchanging device for use in microwave appliance, has gas-air-mixing outlets distributed over circumference of pre-mixing burner, where distribution and number of outlets correspond to cooling effect of cool stream from burner chamber |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE202004020230U1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202008010227U1 (en) | 2008-07-31 | 2009-12-10 | Klouda, Jaroslav, Dipl.-Ing. | Gas premix burner and heat exchanger system for cooking, cooking and other thermal appliances |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE69300224T2 (en) * | 1992-01-08 | 1996-04-04 | Lainox Srl | Cooker for cooking food with forced convection. |
DE29800523U1 (en) * | 1998-01-14 | 1999-05-12 | Greuel Peter | Convection oven |
-
2004
- 2004-12-31 DE DE200420020230 patent/DE202004020230U1/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE69300224T2 (en) * | 1992-01-08 | 1996-04-04 | Lainox Srl | Cooker for cooking food with forced convection. |
DE29800523U1 (en) * | 1998-01-14 | 1999-05-12 | Greuel Peter | Convection oven |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202008010227U1 (en) | 2008-07-31 | 2009-12-10 | Klouda, Jaroslav, Dipl.-Ing. | Gas premix burner and heat exchanger system for cooking, cooking and other thermal appliances |
DE102009035541A1 (en) | 2008-07-31 | 2010-02-04 | Klouda, Jaroslav, Dipl.-Ing. | Gas premix burner and heat exchanger system for gas-heated thermal device e.g. cooking device, has gas premix burner formed as burner body e.g. cylindrical or conical body, having gas outlets distributed at sealing surface |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R163 | Identified publications notified | ||
R207 | Utility model specification |
Effective date: 20060614 |
|
R150 | Term of protection extended to 6 years |
Effective date: 20080312 |
|
R157 | Lapse of ip right after 6 years |
Effective date: 20110701 |