EP0415008B1 - Method of combustion in gasburner - Google Patents
Method of combustion in gasburner Download PDFInfo
- Publication number
- EP0415008B1 EP0415008B1 EP90110796A EP90110796A EP0415008B1 EP 0415008 B1 EP0415008 B1 EP 0415008B1 EP 90110796 A EP90110796 A EP 90110796A EP 90110796 A EP90110796 A EP 90110796A EP 0415008 B1 EP0415008 B1 EP 0415008B1
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- EP
- European Patent Office
- Prior art keywords
- course
- flame
- afterburning
- gas
- 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.)
- Expired - Lifetime
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/72—Safety devices, e.g. operative in case of failure of gas supply
- F23D14/82—Preventing flashback or blowback
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/12—Radiant burners
- F23D14/16—Radiant burners using permeable blocks
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/62—Mixing devices; Mixing tubes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2203/00—Gaseous fuel burners
- F23D2203/10—Flame diffusing means
- F23D2203/105—Porous plates
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2212/00—Burner material specifications
- F23D2212/20—Burner material specifications metallic
- F23D2212/201—Fibres
Definitions
- the invention relates to a method for the combustion of an air / gas mixture in a gas burner for heating systems, furnaces, gas lances or the like. according to the genus of the main claim.
- air / gas mixture is also understood to mean mixtures of air and gasified or fueled liquid fuels.
- air / gas mixture is also understood to mean mixtures of air and gasified or fueled liquid fuels.
- a post-combustion layer is known which lies directly on the flame-holding layer.
- the object of the invention is therefore to create a gas burner of the type mentioned at the outset, in which excessive temperatures, in particular on the flame-retaining layer, are avoided.
- the lower areas of the flames between the two layers stand out from the flame holding layer due to the pressure or the speed of the gas mixture and can no longer heat them up.
- Another advantage is that by varying the distance between the two layers and the pore size of the second plate, the afterburning temperature can be adapted to the respective needs, regardless of the flame size or the flame temperature, so that the temperature is sufficiently high to oxidize the CO - Components can be set, but not so high that additional NOx components could arise.
- the flame holding layer and the afterburning layer are expediently designed as a porous layer, as a fine wire mesh, as a wire pressed body, as a sintered body or as a layer provided with fine bores. Training is particularly cheap the porous layer as a foamed ceramic layer.
- the wire mesh or the wire pressing body can consist of metal wire, ceramic fibers or glass fibers.
- the post-combustion is advantageously carried out in the passages of the post-combustion layer which are coarser with respect to the flame holding layer and which allow combustion flames to be formed therein.
- the flame holding layer and the afterburning layer can be formed as parallel, flat layers, which represents a particularly simple and inexpensive embodiment. However, in order to increase the effective area, it is also possible to form the flame holding layer and the afterburning layer as concentric layers, in particular as circular cylindrical layers.
- the air / gas mixture can be optimally mixed in a mixing chamber upstream of the flame holding layer, which preferably has mixing elements.
- the gas burner shown in FIG. 1 as the first exemplary embodiment consists of a mixing chamber 10 into which one first line 11 for the supply of air (L) or another oxygen-containing gas and a second line 12 for the supply of a combustion gas (G) such as natural gas, propane, butane, hydrogen or the like. flow into.
- a combustion gas such as natural gas, propane, butane, hydrogen or the like.
- a gasified or sprayed flammable liquid can also replace a gas.
- the two lines 11, 12 open asymmetrically and essentially perpendicular to one another in the mixing chamber 10 in order to achieve thorough mixing.
- the mixing chamber 10 is connected on the output side via a narrower passage 13 to the actual burner area 14, which initially widens conically steeply from the passage 13 and then opens into a circular-cylindrical area 15.
- a circular disk-shaped flame holding layer 16 is arranged on the input side, with a likewise circular disk-shaped afterburning layer 17 being arranged at the exit parallel to the flame holding layer 16 and at a distance therefrom.
- Both layers 16, 17 must have a large number of small passages in order to permit the passage of the mixture on the inlet side and the passage of the exhaust gas on the outlet side.
- the layers are designed as porous layers, for example as foamed ceramic layers, or as fine wire mesh, as wire pressed bodies, as sintered bodies or as layers provided with fine bores.
- a design as wire mesh or wire pressed body for example metal wire, ceramic fibers or glass fibers are used.
- the gas mixture mixed in the mixing chamber 10 is preferably fed in a stoichiometric composition via the passage 13 to the burner area 14, where it passes through the flame holding layer 16 and is distributed uniformly there.
- the mixture is then ignited by a known ignition device (not shown in detail), as a result of which a large number of small flames are formed at the outlet of the flame holding layer 16 as a result of the many small passages and are distributed essentially uniformly over the flame holding layer 16.
- the material and the formation of the small passages in the flame holding layer are chosen so that a flame flashback is not possible in a known manner.
- the afterburning layer 17 is designed such that the flames can also penetrate into this afterburning layer 17. Coarser passageways are generally required for this.
- the temperature of the afterburning layer 17 is selected by adjusting the distance and other measures so that the oxidation of CO to CO2 takes place in a favorable manner, but that the temperature required for the formation of NOx is not reached. As a result, the low NOx content per se in such gas burners remains obtained while the CO content is further reduced. With this burner, NOx values and CO values of less than 5 ppm can be achieved with optimum efficiency.
- FIG. 2 The embodiment shown in FIG. 2 is basically the same, but there is a mixing chamber 18 as a tube narrowing when it flows into a burner area 19, air and gas being introduced from the tube inlet.
- a spiral-shaped mixing element 20 is arranged in the mixing chamber 18 for better mixing.
- this can also have other forms which are suitable for mixing.
- the burner region 19 is of circular cylindrical design, a flame holding layer 21 and a post-combustion layer 22 being arranged one above the other as concentric tubes. In between there is an air gap in which the small flames can form.
- part of the exhaust gas can be returned to the combustion process via exhaust gas guide elements 23. This takes place through openings 24 in the burner area 19, which are arranged concentrically around the junction of the mixing chamber 18.
- the post-combustion layer having to be arranged downstream of the flame-holding layer.
- the flame-holding layer for example, polygonal, spherical, ellipsoidal, hemispherical or similar arrangements are also conceivable.
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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 Verfahren zur Verbrennung eines Luft-/Gasgemisches in einem Gasbrenner für Heizanlagen, Feuerungen, Gaslanzen o.dgl. nach der Gattung des Hauptanspruches.The invention relates to a method for the combustion of an air / gas mixture in a gas burner for heating systems, furnaces, gas lances or the like. according to the genus of the main claim.
Derartige Gasbrenner sind in den verschiedensten Ausführungen für verschiedene Anwendungsfälle bekannt, beispielsweise für die oben angeführten Anwendungsfälle. Dabei werden unter der Bezeichnung "Luft-/Gasgemisch" auch Gemische aus Luft und vergasten oder versorühten flüssigen Brennstoffen verstanden. Bei derartigen Brennern ist es immer erstrebenswert, bei einem möglichst hohen Wirkungsgrad möglichst niedrige NOx- und CO-Werte zu erreichen. Hierzu ist beispielsweise gemaß einem aus der GB-A-1602196 bekannten Verfahren eine Nachverbrennungsschicht bekannt, die unmittelbar an der Flammenhalteschicht anliegt. Dies hat den gravierenden Nachteil, daß der untere Bereich der Flammen, also die Fußpunkte der Flammen, die sich an der Flammenhalteschicht bilden, sehr heiß sind. Dies kann zu Brüchen und Rissen an der vorzugsweise als Keramikplatte ausgebildeten Flammenhalteschicht kommen, da die unteren Bereiche der Flammen unmittelbar an der Flammenhalteschicht anliegen. Sie liegen auch an der Nachverbrennungsschicht an, wo ähnliche Probleme auftreten.Such gas burners are known in various designs for different applications, for example for the applications listed above. The term “air / gas mixture” is also understood to mean mixtures of air and gasified or fueled liquid fuels. With such burners, it is always desirable to achieve the lowest possible NOx and CO values with the highest possible efficiency. For this purpose, according to a method known from GB-A-1602196, for example, a post-combustion layer is known which lies directly on the flame-holding layer. This has the serious disadvantage that the lower region of the flames, that is to say the base points of the flames which form on the flame holding layer, are very hot. This can lead to breaks and cracks in the flame holding layer, which is preferably designed as a ceramic plate, since the lower regions of the flames lie directly on the flame holding layer. They are also on the afterburn layer where similar problems arise.
Aus der CH-A-522171 sind zwar in Verbindung mit katalytischer, also flammenloser Verbrennung beabstandete Schichten bekannt, jedoch handelt es sich dort um reine Rückschlagsicherungen, also nicht um Flammenhalteschichten, und die Probleme zu hoher Temperaturen treten dort nicht auf.Although in CH-A-522171 spaced layers are known in connection with catalytic, that is, flameless combustion, they are purely non-return safeguards, that is to say not flame retardant layers, and the problems of high temperatures do not occur there.
Die Aufgabe der Erfindung besteht daher darin, einen Gasbrenner der eingangs genannten Gattung zu schaffen, beim dem zu hohe Temperaturen insbesondere an der Flammenhalteschicht vermieden werden.The object of the invention is therefore to create a gas burner of the type mentioned at the outset, in which excessive temperatures, in particular on the flame-retaining layer, are avoided.
Diese Aufgabe wird durch die kennzeichnenden Merkmale des Anspruchs 1 gelöst.This object is achieved by the characterizing features of claim 1.
Durch das erfindungsgemäße Verfahren heben sich die unteren Bereiche der Flammen zwischen den beiden Schichten aufgrund des Druckes bzw. der Geschwindigkeit des Gasgemisches von der Flammenhalteschicht ab und können diese nicht mehr stark erhitzen. Ein weiterer Vorteil besteht darin, daß durch Variation des Abstandes zwischen den beiden Schichten und der Porengröße der zweiten Platte dort die Nachverbrennungstemperatur den jeweiligen Bedürfnissen angepaßt werden kann und zwar unabhängig von der Flammengröße oder der Flammentemperatur, so daß die Temperatur ausreichend hoch zur Oxidation der CO-Bestandteile eingestellt werden kann, jedoch nicht so hoch, daß zusätzliche NOx-Anteile entstehen könnten.As a result of the method according to the invention, the lower areas of the flames between the two layers stand out from the flame holding layer due to the pressure or the speed of the gas mixture and can no longer heat them up. Another advantage is that by varying the distance between the two layers and the pore size of the second plate, the afterburning temperature can be adapted to the respective needs, regardless of the flame size or the flame temperature, so that the temperature is sufficiently high to oxidize the CO - Components can be set, but not so high that additional NOx components could arise.
Die Flammenhalteschicht und die Nachverbrennnungsschicht sind zweckmäßigerweise als poröse Schicht, als feines Drahtgeflecht, als Drahtpreßkörper, als Sinterkörper oder als mit feinen Bohrungen versehene Schicht ausgebildet. Besonders günstig ist dabei die Ausbildung der porösen Schicht als geschäumte Keramikschicht. Das Drahtgeflecht oder der Drahtpreßkörper kann aus Metalldraht, aus Keramikfasern oder aus Glasfasern bestehen.The flame holding layer and the afterburning layer are expediently designed as a porous layer, as a fine wire mesh, as a wire pressed body, as a sintered body or as a layer provided with fine bores. Training is particularly cheap the porous layer as a foamed ceramic layer. The wire mesh or the wire pressing body can consist of metal wire, ceramic fibers or glass fibers.
Durch die in den Unteransprüchen aufgeführten Maßnahmen sind vorteilhafte Weiterbildungen und Verbesserungen des im Anspruch 1 angegebenen Gasbrenners möglich.The measures listed in the subclaims allow advantageous developments and improvements of the gas burner specified in claim 1.
Die Nachverbrennung wird in vorteilhafter Weise in den bezüglich der Flammenhalteschicht gröberen Durchgängen der Nachverbrennungsschicht durchgeführt, die die Ausbildung von Verbrennungsflammen darin gestatten.The post-combustion is advantageously carried out in the passages of the post-combustion layer which are coarser with respect to the flame holding layer and which allow combustion flames to be formed therein.
Die Flammenhalteschicht und die Nachverbrennungsschicht können als parallele, ebene Schichten ausgebildet werden, was eine besonders einfache und kostengünstige Ausgestaltung darstellt. Es ist jedoch auch möglich, zur Erhöhung der wirksamen Fläche die Flammenhalteschicht und die Nachverbrennungsschicht als konzentrische Schichten auszubilden, insbesondere als kreiszylindrische Schichten.The flame holding layer and the afterburning layer can be formed as parallel, flat layers, which represents a particularly simple and inexpensive embodiment. However, in order to increase the effective area, it is also possible to form the flame holding layer and the afterburning layer as concentric layers, in particular as circular cylindrical layers.
Eine optimale Vermischung des Luft-/Gasgemisches kann in einer der Flammenhalteschicht vorgeschalteten Mischkammer, die vorzugsweise Vermischungselemente aufweist, durchgeführt werden.The air / gas mixture can be optimally mixed in a mixing chamber upstream of the flame holding layer, which preferably has mixing elements.
Zwei Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt und in der nachfolgenden Beschreibung näher erläutert. Es zeigen:
- Fig. 1
- ein erstes Ausführungsbeispiel eines Gasbrenners mit ebenen, parallelen Schichten und
- Fig. 2
- ein zweites Ausführungsbeispiel eines Gasbrenners mit konzentrischen, kreiszylindrischen Schichten.
- Fig. 1
- a first embodiment of a gas burner with flat, parallel layers and
- Fig. 2
- a second embodiment of a gas burner with concentric, circular cylindrical layers.
Der in Fig. 1 als erstes Ausführungsbeispiel dargestellte Gasbrenner besteht aus einer Mischkammer 10, in die eine erste Leitung 11 zur Zuführung von Luft (L) oder einem sonstigen sauerstoffhaltigen Gas sowie eine zweite Leitung 12 zur Zuführung eines Verbrennungsgases (G) wie Erdgas, Propan, Butan, Wasserstoff od.dgl. einmünden. Anstelle eines Gases kann auch eine vergaste oder versprühte brennbare Flüssigkeit treten. Die beiden Leitungen 11,12 münden asymmetrisch und im wesentlichen senkrecht zueinander in die Mischkammer 10 ein, um eine gute Durchmischung zu erreichen.The gas burner shown in FIG. 1 as the first exemplary embodiment consists of a
Die Mischkammer 10 ist ausgangsseitig über einen schmäleren Durchgang 13 mit dem eigentlichen Brennerbereich 14 verbunden, der sich zunächst vom Durchgang 13 aus steil konisch erweitert und dann in einen kreiszylindrischen Bereich 15 einmündet. In diesem kreiszylindrischen Bereich 15 ist eingangsseitig eine kreisscheibenförmige Flammenhalteschicht 16 angeordnet, wobei am Ausgang parallel zur Flammenhalteschicht 16 und beabstandet von dieser noch eine ebenfalls kreisscheibenförmige Nachverbrennungsschicht 17 angeordnet ist. Beide Schichten 16,17 müssen eine Vielzahl kleiner Durchgänge aufweisen, um eingangsseitig den Durchgang des Gemisches und ausgangsseitig den Durchgang des Abgases zu gestatten. Hierzu sind die Schichten als poröse Schichten, beispielsweise als geschäumte Keramikschichten, oder als feines Drahtgeflecht, als Drahtpreßkörper, als Sinterkörper oder als mit feinen Bohrungen versehene Schichten ausgebildet. Bei einer Ausführung als Drahtgeflecht oder Drahtpreßkörper werden beispielsweise Metalldraht, Keramikfasern oder Glasfasern verwendet.The
Das in der Mischkammer 10 vermischte Gasgemisch wird vorzugsweise in stöchiometrischer Zusammensetzung über den Durchgang 13 dem Brennerbereich 14 zugeleitet, wo es die Flammenhalteschicht 16 passiert und sich dort gleichmäßig verteilt. Durch eine nicht näher dargestellte, bekannte Zündeinrichtung wird das Gemisch dann entzündet, wodurch sich am Ausgang der Flammenhalteschicht 16 infolge der vielen kleinen Durchgänge eine Vielzahl von kleinen Flammen ausbildet, die im wesentlichen gleichmäßig über der Flammenhalteschicht 16 verteilt sind. Das Material und die Ausbildung der kleinen Durchgänge in der Flammenhalteschicht sind dabei so gewählt, daß in bekannter Weise ein Flammenrückschlag nicht möglich ist.The gas mixture mixed in the
Die vielen kleinen Flammen im Zwischenraum zwischen der Flammenhalteschicht 16 und der Nachverbrennungsschicht 17 erhitzen diese Nachverbrennungsschicht 17, wodurch dort eine Aufoxydation von entstehendem CO zu CO₂ stattfindet. Die Nachverbrennungsschicht 17 ist dabei so ausgebildet, daß die Flammen auch in diese Nachverbrennungsschicht 17 eindringen können. Hierzu sind im allgemeinen gröbere Durchgänge erforderlich.The many small flames in the space between the
Die Temperatur der Nachverbrennungsschicht 17 wird durch Einstellung des Abstands und sonstige Maßnahmen so gewählt, daß die Oxydation von CO zu CO₂ in günstiger Weise stattfindet, daß jedoch nicht die zur Bildung von NOx erforderliche Temperatur erreicht wird. Hierdurch bleibt der bei solchen Gasbrennern an sich schon niedrige NOx-Gehalt erhalten, während sich der CO-Gehalt weiter reduziert. Mit diesem Brenner lassen sich bei optimalem Wirkungsgrad NOx-Werte und CO-Werte von jeweils weniger als 5 ppm erreichen.The temperature of the
Das in Fig. 2 dargestellte Ausführungsbeispiel ist prinzipiell gleich aufgebaut, jedoch ist dort eine Mischkammer 18 als sich bei der Einmündung in einen Brennerbereich 19 verengendes Rohr ausgebaut, wobei Luft und Gas jeweils vom Rohreingang her eingebracht werden. Zur besseren Vermischung ist ein spiralförmiges Vermischungselement 20 in der Mischkammer 18 angeordnet. Dieses kann jedoch auch andere Formen aufweisen, die zur Vermischung geeignet sind.The embodiment shown in FIG. 2 is basically the same, but there is a mixing chamber 18 as a tube narrowing when it flows into a
Der Brennerbereich 19 ist kreiszylindrisch ausgebildet, wobei eine Flammenhalteschicht 21 und eine Nachverbrennungsschicht 22 als konzentrische Rohre übereinander angeordnet sind. Dazwischen befindet sich wiederum ein Luftspalt, in dem sich die kleinen Flammen ausbilden können.The
Zur weiteren Verbesserung des Abgases und Reduzierung von Schadstoffen kann ein Teil des Abgases über Abgas-Leitelemente 23 wieder in den Verbrennungsprozeß rückgeführt werden. Dies erfolgt durch Öffnungen 24 im Brennerbereich 19, die konzentrisch um die Einmündungsstelle der Mischkammer 18 angeordnet sind.To further improve the exhaust gas and reduce pollutants, part of the exhaust gas can be returned to the combustion process via exhaust
Bei beiden Ausführungsbeispielen ist es möglich, die Flammenhalteschicht und die Nachverbrennungsschicht aneinanderstoßend anzuordnen, um einen kompakteren Brennerbereich zu erzielen. Die kleinen Flammen bilden sich dann in der Nachverbrennungsschicht 22 aus, deren kleine Durchgänge entsprechend dimensioniert werden müssen.In both exemplary embodiments, it is possible to abut the flame holding layer and the afterburning layer to achieve a more compact burner area. The small flames then form in the
Weitere Anordnungen von Flammenhalteschichten und Nachverbrennungsschichten sind selbstverständlich ebenfalls möglich, wobei jeweils der Flammenhalteschicht ausgangsseitig die Nachverbrennungsschicht nachgeordnet sein muß. So sind beispielsweise auch mehrkantige, kugelförmige, ellipsoidförmige, halbkugelförmige oder ähnliche Anordnungen denkbar.Further arrangements of flame-holding layers and afterburning layers are of course also possible, the post-combustion layer having to be arranged downstream of the flame-holding layer. For example, polygonal, spherical, ellipsoidal, hemispherical or similar arrangements are also conceivable.
Claims (6)
- Method of burning a gas/air mixture in a gas burner for heating plant, furnaces, gas lances or the like, in which the gas/air mixture is admitted to a flame retention course (16; 21) preventing flashback and provided with a multiplicity of small passages, at that side of which opposite the mixture admission side flames are formed after ignition of the mixture, wherein is provided on the flame side adjacent to the flame retention course (16; 21) an afterburning course (17; 22) heatable by the combustion flames and having a multiplicity of small passages, characterized in that, by means of a suitable distance between the afterburning course (17; 22) and the flame retention course (16; 21), the flames form between the two courses (16, 17; 21, 22), that the combustion flames heat up the afterburning course (17; 22) and may also reach at least part way into the latter.
- Method according to claim 1, characterized in that the afterburning takes place in those passages of the after-burning course (17; 22) which are coarser relative to the flame retention course (16; 21).
- Method according to claim 1 or 2, characterized in that the flame retention course (16) and the afterburning course (17) are arranged parallel and plane alongside one another.
- Method according to claim 1 or 2, characterized in that the flame retention course (21) and the afterburning course (22) are arranged concentrically inside one another, in particular in circular cylinder form.
- Method according to any of the preceding claims, characterized in that a mixing of the gas/air mixture is effected in a mixing chamber (10; 18) upstream of the flame retention course (16; 21) and in which mixing elements (20) are preferably provided.
- Method according to any of the preceding claims, characterized in that a portion of the waste gases is returned to the intake side of the flame retention course (21), in particular by means of waste gas flue elements (23).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3926699A DE3926699A1 (en) | 1989-08-12 | 1989-08-12 | GAS BURNER |
| DE3926699 | 1989-08-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0415008A1 EP0415008A1 (en) | 1991-03-06 |
| EP0415008B1 true EP0415008B1 (en) | 1994-07-20 |
Family
ID=6387017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP90110796A Expired - Lifetime EP0415008B1 (en) | 1989-08-12 | 1990-06-07 | Method of combustion in gasburner |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0415008B1 (en) |
| AT (1) | ATE108883T1 (en) |
| DE (2) | DE3926699A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006006882A1 (en) * | 2004-07-13 | 2006-01-19 | Fisher & Paykel Appliances Limited | A gas heating appliance |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT394768B (en) * | 1990-11-02 | 1992-06-25 | Chamottewaren U Thonoefenfabri | BURNER FLAME GUIDE PART |
| NL9101896A (en) * | 1991-11-14 | 1993-06-01 | Witteveen Gustaaf J | PREMIX GAS BURNER. |
| SK309792A3 (en) * | 1992-10-09 | 1995-08-09 | Hynek Mikusek | Combustion system of heating gas condensation aggregates |
| AT400753B (en) * | 1994-05-06 | 1996-03-25 | Vaillant Gmbh | METHOD FOR PRODUCING A SINTERMETAL BURNER PLATE |
| US6295951B1 (en) | 1995-04-04 | 2001-10-02 | Srp 687 Pty. Ltd. | Ignition inhibiting gas water heater |
| US6003477A (en) * | 1995-04-04 | 1999-12-21 | Srp 687 Pty. Ltd. | Ignition inhibiting gas water heater |
| US5797355A (en) * | 1995-04-04 | 1998-08-25 | Srp 687 Pty Ltd | Ignition inhibiting gas water heater |
| US6196164B1 (en) | 1995-04-04 | 2001-03-06 | Srp 687 Pty. Ltd. | Ignition inhibiting gas water heater |
| US6155211A (en) * | 1995-04-04 | 2000-12-05 | Srp 687 Pty Ltd. | Air inlets for water heaters |
| US6135061A (en) * | 1995-04-04 | 2000-10-24 | Srp 687 Pty Ltd. | Air inlets for water heaters |
| US6085699A (en) * | 1995-04-04 | 2000-07-11 | Srp 687 Pty Ltd. | Air inlets for water heaters |
| DE59706874D1 (en) * | 1996-06-25 | 2002-05-08 | Heinrich Koehne | SURFACE-BURNING BURNER FOR LIQUID FUELS AND BURNING METHOD |
| NL1005800C2 (en) * | 1996-11-16 | 1999-05-10 | Fasto Nefit Bv | Porous body for gas-burner - has open space at igniter between successive zones |
| EP0899507B1 (en) * | 1997-08-29 | 2003-11-12 | Tokyo Gas Company Limited | A leak preventive structure for a case of a surface combustion burner |
| US6293230B1 (en) | 1998-10-20 | 2001-09-25 | Srp 687 Pty Ltd. | Water heaters with flame traps |
| US6269779B2 (en) | 1998-08-21 | 2001-08-07 | Srp 687 Pty Ltd. | Sealed access assembly for water heaters |
| US6302062B2 (en) | 1998-08-21 | 2001-10-16 | Srp 687 Pty Ltd. | Sealed access assembly for water heaters |
| US6223697B1 (en) * | 1998-08-21 | 2001-05-01 | Srp 687 Pty Ltd. | Water heater with heat sensitive air inlet |
| US6142106A (en) * | 1998-08-21 | 2000-11-07 | Srp 687 Pty Ltd. | Air inlets for combustion chamber of water heater |
| US5950573A (en) * | 1998-10-16 | 1999-09-14 | Srp 687 Pty. Ltd. | Power vented water heater with air inlet |
| GB9827620D0 (en) * | 1998-12-16 | 1999-02-10 | Bray Burners Ltd | Gas burner |
| DE19901145A1 (en) * | 1999-01-14 | 2000-07-20 | Krieger Gmbh & Co Kg | Infrared heater designed as a surface heater |
| US6709264B2 (en) * | 2001-11-20 | 2004-03-23 | General Motors Corporation | Catalytic combuster |
| WO2005100856A1 (en) * | 2004-04-06 | 2005-10-27 | Tiax Llc | Burner apparatus |
| EP1715247A1 (en) * | 2005-04-19 | 2006-10-25 | Paul Scherrer Institut | Burner |
| DE102006012168B4 (en) * | 2006-03-14 | 2009-05-07 | Gvp Gesellschaft Zur Vermarktung Der Porenbrennertechnik Mbh | Burner for combustion of liquid fuel |
| DE102007037971B4 (en) * | 2007-08-11 | 2018-11-29 | Gvp Gesellschaft Zur Vermarktung Der Porenbrennertechnik Mbh | Heat Guns |
| DE102008000010B4 (en) | 2008-01-07 | 2010-10-14 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Plate-shaped ceramic heat radiating body of an infrared surface radiator |
| CN102563639B (en) * | 2011-12-30 | 2014-01-29 | 西安交通大学 | Porous medium and heat pipe combustor for liquid fuel |
| US10458649B2 (en) | 2013-02-14 | 2019-10-29 | Clearsign Combustion Corporation | Horizontally fired burner with a perforated flame holder |
| CN105556210B (en) * | 2013-09-23 | 2018-07-24 | 克利尔赛恩燃烧公司 | For low NOXThe porous flame holder of burning |
| WO2015054323A1 (en) | 2013-10-07 | 2015-04-16 | Clearsign Combustion Corporation | Pre-mixed fuel burner with perforated flame holder |
| EP3055615A4 (en) * | 2013-10-07 | 2017-08-09 | Clearsign Combustion Corporation | Horizontally fired burner with a perforated flame holder |
| CN105437523A (en) * | 2014-08-21 | 2016-03-30 | 佛山市中豹科技发展有限公司 | Vacuum plastic-absorbing machine with combustion gas |
| PT109048A (en) * | 2015-12-22 | 2017-06-22 | Bosch Termotecnologia Sa | BURNER DEVICE |
| DE102016206247A1 (en) | 2016-04-14 | 2017-11-02 | Gvp Gesellschaft Zur Vermarktung Der Porenbrennertechnik Mbh | surface burner |
| DE102020125351A1 (en) | 2020-09-29 | 2022-03-31 | Vaillant Gmbh | gas heater |
| DE102021121764A1 (en) | 2021-08-23 | 2023-02-23 | Viessmann Climate Solutions Se | gas burner device |
| RU209658U1 (en) * | 2021-11-29 | 2022-03-17 | Иван Соломонович Пятов | INFRARED GAS BURNER |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1939535C3 (en) * | 1969-08-02 | 1974-08-01 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Device for the flameless catalytic combustion of hydrocarbons in sintered stones |
| GB1439767A (en) * | 1972-09-25 | 1976-06-16 | Foseco Int | Radiant gas burners |
| GB1602196A (en) * | 1977-09-01 | 1981-11-11 | Metal Pressings Ltd | Catalytic heaters |
-
1989
- 1989-08-12 DE DE3926699A patent/DE3926699A1/en not_active Withdrawn
-
1990
- 1990-06-07 EP EP90110796A patent/EP0415008B1/en not_active Expired - Lifetime
- 1990-06-07 DE DE59006485T patent/DE59006485D1/en not_active Expired - Fee Related
- 1990-06-07 AT AT90110796T patent/ATE108883T1/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006006882A1 (en) * | 2004-07-13 | 2006-01-19 | Fisher & Paykel Appliances Limited | A gas heating appliance |
Also Published As
| Publication number | Publication date |
|---|---|
| ATE108883T1 (en) | 1994-08-15 |
| DE59006485D1 (en) | 1994-08-25 |
| EP0415008A1 (en) | 1991-03-06 |
| DE3926699A1 (en) | 1991-02-14 |
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