EP1686318B1 - Device for mounting a blower-burner on a combustion chamber housing - Google Patents

Device for mounting a blower-burner on a combustion chamber housing Download PDF

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Publication number
EP1686318B1
EP1686318B1 EP05028069.2A EP05028069A EP1686318B1 EP 1686318 B1 EP1686318 B1 EP 1686318B1 EP 05028069 A EP05028069 A EP 05028069A EP 1686318 B1 EP1686318 B1 EP 1686318B1
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EP
European Patent Office
Prior art keywords
burner
combustion chamber
holding device
housing
flange
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EP05028069.2A
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German (de)
French (fr)
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EP1686318A1 (en
Inventor
Sebastian Kretschmer
Enrico Seemann
Torsten Lohse
Klaus Beckmann
Hendrik Dr. Kretzschmar
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Elco Burners GmbH
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Elco Burners GmbH
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Application filed by Elco Burners GmbH filed Critical Elco Burners GmbH
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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
    • F23D14/34—Burners specially adapted for use with means for pressurising the gaseous fuel or the combustion air
    • F23D14/36—Burners specially adapted for use with means for pressurising the gaseous fuel or the combustion air in which the compressor and burner form a single unit
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C5/00—Disposition of burners with respect to the combustion chamber or to one another; Mounting of burners in combustion apparatus
    • F23C5/02—Structural details of mounting

Definitions

  • the present invention relates in general to devices for forced draft burners, and more particularly to an apparatus with which a blower burner can be directly or indirectly connected to a combustion chamber housing defining a combustion chamber.
  • Known fan burners for liquid and / or gaseous fuels are normally attached to a combustion chamber (eg boiler) or to a combustion chamber housing delimiting it , It is customary to arrange the fan burner directly on the combustion chamber housing or via an intermediate module, which serves for the introduction of fuels.
  • the housing of the fan burner with respect to the mechanical fatigue strength for receiving forces and moments of the fan burner is interpreted as a whole; taking into account the burner housing alone is not enough.
  • the module When using a module arranged between the fan burner and the combustion chamber housing, the module must be designed accordingly.
  • the weight of the housing increases with increasing air power.
  • airflow increases which may be considered correlated with firing performance
  • the masses of the components included and attached to the housing increase.
  • certain components such as.
  • the fan motor and the fan wheel contribute specifically to the increase in the mass of the fan burner in total. This has the consequence that the ratio of the mass of the components of a fan burner without its housing to the mass of the burner housing is greater, the higher the air performance and the firing performance.
  • the design complexity with regard to the housing must be correspondingly increased.
  • complex calculations required for example, to determine mechanical stresses in the housing.
  • the materials used for the housing should be dimensioned accordingly, for example, equipped with correspondingly large wall thicknesses to meet the increased demands on the mechanical fatigue strength.
  • Benneran extract is necessary for access to a arranged between the burner and the combustion chamber housing module or mixing device, the burner completely away from the module or the burner together with the module of the combustion chamber housing.
  • hinges are fastened to the burner and the module or to the module and the combustion chamber housing Used to absorb the forces and moments created during pivoting, in particular due to the heavy burner housing.
  • Possibilities for shaping the combustion chamber housing for access to the module or the mixing device are not possible due to the above requirement for the combustion chamber housing with regard to the absorption of forces and moments.
  • DE 93 00 528 U1 discloses a holding device for attaching a fan burner to a combustion chamber housing according to the preamble of claim 1, specifically a boiler flange with a flange plate and a clamping sleeve.
  • the flange plate is used for attachment to a burner plate, which is provided on a boiler, for example, as a pivotable door and having an opening for the burner.
  • the burner tube is inserted into the clamping sleeve, which is then tightened by means of clamping means to firmly clamp the burner.
  • a carrying handle can be attached with hooks, in which the burner can be hung for maintenance.
  • DE 94 16 641 U1 relates to a radial fan for supplying combustion air to a burner, that is, a component of a fan burner and no component used in conjunction with a complete fan burner.
  • DE 44 36 527 A1 relates to a holder for a burner, with which the burner tube is releasably held by means of a flange.
  • the holder is in accordance with the clamping sleeve DE 93 00 528 U1 comparable to that.
  • DE 1 551 757 A concerns an oil or gas burner and refers only to the burner itself. Means to attach the burner to a combustion chamber housing are not disclosed.
  • the object of the present invention is to solve the above-mentioned problems with fan burners.
  • the object of the present invention is to provide a solution for building weight-optimized and easy-to-handle burner housing.
  • the present invention provides a holding device for a blower burner, comprising a fixing portion for fixing the holding device to a combustion space defining a combustion chamber housing, a receiving portion for receiving by a on the holding device fixed fan burners caused forces and / or moments, wherein the receiving portion comprises a flange for mounting the blower burner on the holding device, wherein the receiving portion further comprises at least one support arm which connects the flange with the attachment portion.
  • the attachment portion comprises a flange for positive and / or non-positive attachment to a combustion chamber housing or to a arranged on a combustion chamber housing unit.
  • the receiving portion comprises a second support arm.
  • the flange of the receiving portion may preferably include a motor mounting portion for mounting a motor of a fan burner.
  • the flange of the receiving portion may preferably comprise a housing mounting portion for mounting a housing of a fan burner.
  • At least one of the at least one support arm may preferably have an arcuate structure.
  • the holding device comprises a support portion which may be detachably connected to the attachment portion and / or the receiving portion or may be an integral part of the holding device.
  • the support section may preferably comprise a base for arranging the holding device on a production and / or transport and / or assembly area.
  • the support section may preferably comprise elements for supporting a blower burner arranged on the holding device.
  • Fig. 1 shows an embodiment for arranging a fan burner 2 for liquid and / or gaseous fuels on a combustion chamber housing 4 (eg boiler), which limits a combustion chamber, not shown.
  • the holding device comprises a fastening section (not designated) in order to fix the holding device directly to the combustion chamber housing 4.
  • the holding device comprises a receiving device, with the forces and / or moments generated by the blower burner 2 arranged on the holding device can be absorbed, which are generated both during the operation of the blower burner 2 and when the blower burner 2 is not operated.
  • the attachment portion comprises a flange 6, which is connected to the combustion chamber housing 4, for example, by screwing, welding and / or riveting.
  • the flange 6 is designed so that between the fan burner 2 and the combustion chamber housing 4, a module 8 can be arranged in particular for the introduction of fuels.
  • the flange 6 can be designed such that it at least partially surrounds the region of the module 8 adjacent to the combustion chamber housing 4.
  • the receiving portion comprises a first support arm 10, a second support arm 12 and a third support arm 14, which are each connected at one end to the flange 6.
  • the other ends of the support arms 10, 12 and 14 are connected to a flange 16 of the receiving portion.
  • the flange 16 serves to receive the fan burner housing 24 at the receiving portion.
  • the flange 16 includes areas to attach the individual components of the blower burner 2 to the apparatus, if necessary.
  • the flange 16 includes a motor mounting portion 18 which serves to secure a motor 20 of the blower burner 2.
  • the engine mounting portion 18 is here designed so that the motor 20 secured to the receiving portion and the drive shaft, not shown, of the motor 20 can be passed through the motor mounting portion 18.
  • the flange 16 further includes a housing attachment portion 22 having an L-shaped portion 22a.
  • the housing mounting portion 22 serves to attach a housing 24 of the fan burner 2 to the receiving device.
  • detachable and non-detachable connections such as screws, rivets, welds and the like.
  • Fig. 2, 3rd and 4 show a further embodiment in which none with the module of Fig. 1 comparable component is used.
  • This embodiment also comprises a fastening portion and a receiving device, for which with reference to Fig. 1 except as noted below.
  • the flange 6 is here designed as a flat, plate-shaped structure, which has holes in its edge regions for fastening the flange 6 to a combustion chamber housing (not shown). Furthermore, the flange 6 is designed with an opening 28, through which a combustion tube 26 can be guided (in FIG Fig. 1 the burner tubes of the blower burner 2 are not shown because they are enclosed by the modules 8). Advantageously, the opening 28 is dimensioned such that a positive connection with the combustion tube 26 is possible. Instead of the opening 28, the flange 6 may also have a receptacle, for example in U-shape, in which the combustion tube 26 can be introduced.
  • the receiving portion of the embodiment according to Fig. 2 to 4 includes two support arms 10 and 12 that extend arcuately away from the flange 6 to the motor mounting portion 18.
  • the engine mounting portion 18 here includes a circular structure (not shown) that includes the engine 10 and advantageously serves to secure it.
  • the case mounting portion 22 also includes an L-shaped one here Area 22 a, which can also be used to arrange other components of the fan burner 2, such as an electronic module 30.
  • Fig. 5 illustrated embodiment represents a modification of the embodiment of Fig. 2 to 4
  • components includes the embodiment of Fig. 5 a support portion 32.
  • the support portion 32 is detachably connected to the mounting and receiving means and may be used in the (pre) assembly of the support and the blower burner, their transport and mounting on the combustion chamber housing, for example using pallets and / or lift trucks become.
  • the support area 32 makes it possible to provide the blower burner 2 prefabricated with the fastening and receiving devices arranged thereon.
  • the support region 32 comprises a base 34, with which the entire in Fig. 5 arrangement shown in the (pre) assembly and / or assembly on the combustion chamber housing on a mounting area (eg floor, forklift) can be arranged.
  • the support region 32 further comprises elements 36 to support the attachment and receiving devices and advantageously also the blower burner 2. After mounting on the combustion chamber housing, the support region 32 can be removed.
  • the support area 32 is also used during transport.
  • Fig. 6 to 9 show a further embodiment.
  • This embodiment also comprises a fixing portion and a receiving device, for which the reference to Fig. 1 to 5 except as noted below.
  • the support portion 32 is an integral part of the holding device.
  • another support arm 38 extends from the flange 6 from its opposite side and merges into one of the elements 36.
  • the support area 40 serves to rest part of the housing of a fan burner and to absorb forces and / or moments during the month, transport and operation.
  • the holding device with a fan burner arranged thereon is fastened to a combustion chamber such that the support region 32 does not rest on the floor. But it is also conceivable to attach the holding device with a fan burner arranged thereon on a combustion chamber, that the support portion 32 rests on the floor.
  • blower burners and in particular their housings, to implement a light-weight concept.
  • the possible weight savings associated with fan burners are greater than the expenses required in an implementation of the present invention.
  • the total manufacturing cost is reduced by the present invention.
  • An implementation of the present invention, in particular a calculation and construction of an inventive Device with respect to its fatigue strength, is much simpler than is required in the design and construction of conventional forced draft burners.
  • the total costs incurred are reduced by the present invention.
  • the present invention makes it possible to provide a lightweight construction concept with regard to blower burners such that partial opening of the blower burner housing, for example during installation, commissioning, normal operation and maintenance, is also possible in the installed state.
  • a design of the housing that allows an opening of the housing top a significant improvement in commissioning and maintenance represent.
  • commissioning and maintenance it is often necessary to be able to access the mixing device.
  • the present invention avoids this because it is now possible to provide housing of fan burners with corresponding openings, taking no account of the hitherto requirement to take into account the mechanical strength of the entire system.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Supply (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Combustion Of Fluid Fuel (AREA)

Description

Gebiet der ErfindungField of the invention

Die vorliegende Erfindung betrifft im Allgemeinen Vorrichtungen für Gebläsebrenner und insbesondere eine Vorrichtung, mit der ein Gebläsebrenner unmittelbar oder mittelbar mit einem Brennraumgehäuse, das einen Brennraum begrenzt, verbunden werden kann.The present invention relates in general to devices for forced draft burners, and more particularly to an apparatus with which a blower burner can be directly or indirectly connected to a combustion chamber housing defining a combustion chamber.

Hintergrund der ErfindungBackground of the invention

Bekannte Gebläsebrenner für flüssige und/oder gasförmige Brennstoffe (z.B. nach DIN EN 267/676 oder DIN EN 746), insbesondere so genannte Monoblock-Brenner, werden normalerweise hängend an einem Brennraum (z. B. Kessel) bzw. einem diesen begrenzenden Brennraumgehäuse befestigt. Dabei ist es üblich, den Gebläsebrenner unmittelbar an dem Brennraumgehäuse oder über ein dazwischen liegendes Modul daran anzuordnen, das zur Einleitung von Brennstoffen dient.Known fan burners for liquid and / or gaseous fuels (eg according to DIN EN 267/676 or DIN EN 746), in particular so-called monoblock burners, are normally attached to a combustion chamber (eg boiler) or to a combustion chamber housing delimiting it , It is customary to arrange the fan burner directly on the combustion chamber housing or via an intermediate module, which serves for the introduction of fuels.

Im befestigten Zustand entstehende Kräfte, insbesondere Gewichtskräfte, und beim Betrieb des Gebläsebrenners entstehende Kräfte werden über das Gehäuse des Gebläsebrenners in das Brennraumgehäuse abgeleitet. Entsprechendes gilt für im befestigten Zustand und beim Betrieb entstehende Momente.In the fastened state resulting forces, in particular weight forces, and during operation of the fan burner resulting forces are dissipated through the housing of the fan burner in the combustion chamber housing. The same applies to moments created in the fastened state and during operation.

Dementsprechend ist das Gehäuse des Gebläsebrenners hinsichtlich der mechanischen Dauerfestigkeit zur Aufnahme von Kräften und Momenten des Gebläsebrenners insgesamt auszulegen; hierbei das Brennergehäuse alleine zu berücksichtigen reicht nicht aus. Bei Verwendung eines zwischen dem Gebläsebrenner und dem Brennraumgehäuse angeordneten Moduls ist auch das Modul entsprechend auszulegen.Accordingly, the housing of the fan burner with respect to the mechanical fatigue strength for receiving forces and moments of the fan burner is interpreted as a whole; taking into account the burner housing alone is not enough. When using a module arranged between the fan burner and the combustion chamber housing, the module must be designed accordingly.

Bei der Auslegung des Brennergehäuses bzw. des Moduls sind aufgrund ihrer Masse insbesondere der Gebläsemotor, das Ventilatorrad, der Saugkasten mit Drosselklappe, elektronische Komponenten, hydraulische Komponenten und mechanische Verbundregler zu beachten.When designing the burner housing or the module, due to their mass, the blower motor, the fan wheel, the suction box with throttle valve, electronic components, hydraulic components and mechanical composite regulators must be observed.

Betrachtet man das Gehäuse als Luftleiteinrichtung steigt das Eigengewicht des Gehäuses mit steigender Luftleistung an. Bei steigender Luftleistung, die als mit der Feuerungsleistung korreliert betrachtet werden kann, steigen ferner die Massen der von dem Gehäuse umfassten und daran befestigten Komponenten. Insbesondere bestimmte Komponenten, wie z. B. der Gebläsemotor und das Ventilatorrad, tragen speziell zum Anstieg der Masse des Gebläsebrenners insgesamt bei. Dies hat zur Folge, dass das Verhältnis der Masse der Komponenten eines Gebläsebrenners ohne dessen Gehäuse zur Masse des Brennergehäuses größer wird, je höher die Luftleistung bzw. die Feuerungsleistung ist.If you consider the housing as a baffle, the weight of the housing increases with increasing air power. Further, as airflow increases, which may be considered correlated with firing performance, the masses of the components included and attached to the housing increase. In particular, certain components, such as. As the fan motor and the fan wheel, contribute specifically to the increase in the mass of the fan burner in total. This has the consequence that the ratio of the mass of the components of a fan burner without its housing to the mass of the burner housing is greater, the higher the air performance and the firing performance.

Um die bei steigender Luftleistung bzw. Feuerungsleistung entstehenden, erhöhten Kräfte und Momente des Gebläsebrenners zu berücksichtigen, ist der konstruktive Aufwand hinsichtlich des Gehäuses entsprechend zu erhöhen. Hierfür sind z. T. komplexe Berechnungen erforderlich, beispielsweise um mechanische Spannungen im Gehäuse zu ermitteln. Auch sind die für das Gehäuse verwendeten Materialien entsprechend zu dimensionieren, beispielsweise mit entsprechend großen Wandstärken auszustatten, um die erhöhten Anforderungen an die mechanische Dauerfestigkeit zu erfüllen.In order to take into account the increased forces and torques of the fan burner resulting from increasing air output or firing output, the design complexity with regard to the housing must be correspondingly increased. For this purpose, for. T. complex calculations required, for example, to determine mechanical stresses in the housing. Also, the materials used for the housing should be dimensioned accordingly, for example, equipped with correspondingly large wall thicknesses to meet the increased demands on the mechanical fatigue strength.

Ein weiterer Nachteil bekannter Benneranordnungen besteht darin, dass es für einen Zugriff auf eine zwischen dem Brenner und dem Brennraumgehäuse angeordneten Modul oder Mischeinrichtung erforderlich ist, den Brenner vollständig von dem Modul oder den Brenner zusammen mit dem Modul von dem Brennraumgehäuse wegzuklappen. Hierfür werden an dem Brenner und dem Modul bzw. an dem Modul und dem Brennraumgehäuse befestigte Scharniere Verwendet, die beim Verschwenken entstehende Kräfte und Momente, insbesondere aufgrund des schweren Brennergehäuses, aufnehmen müssen. Möglichkeiten, das Brennraumgehäuse für einen Zugriff auf das Modul bzw. die Mischeinrichtung zugestalten, gibt es aufgrund der obigen Anforderung an das Brennraumgehäuse hinsichtlich der Aufnahme von Kräften und Momenten nicht.Another disadvantage of known Benneranordnungen is that it is necessary for access to a arranged between the burner and the combustion chamber housing module or mixing device, the burner completely away from the module or the burner together with the module of the combustion chamber housing. For this purpose, hinges are fastened to the burner and the module or to the module and the combustion chamber housing Used to absorb the forces and moments created during pivoting, in particular due to the heavy burner housing. Possibilities for shaping the combustion chamber housing for access to the module or the mixing device are not possible due to the above requirement for the combustion chamber housing with regard to the absorption of forces and moments.

Ein bekannter Ansatz, dieses Problem zu lösen besteht darin, durch den Gebläsebrenner verursachte Kräfte und Momente senkrecht nach unten in den Boden abzuleiten. Dabei wird üblicherweise ein Gestell verwendet, das auf dem Boden montiert und an dem der Gebläsebrenner befestigt ist. Im Speziellen ist es üblich, den Gebläsemotor des Gebläsebrenners an dem Gestell zu befestigen, während die weiteren Bestandteile des Gebläsebrenners an dem Motor angeordnet sind. Dadurch wird erreicht, dass das Gehäuse hinsichtlich seiner mechanischen Dauerfestigkeit nur unter Berücksichtigung seiner eigenen Masse auszulegen ist. Dieser aus dem Bereich von Ventilatoren bekannte Ansatz ist nachteilig, weil für unterschiedliche, beispielsweise vom Kesseltyp abhängigen Installationshöhen eine Vielzahl von Gestellen unterschiedlicher Höhe vorzusehen ist. Ferner ist es bei dieser Vorgehensweise erforderlich, eine schwingungstechnische Entkopplung des Gestells bzw. des daran angeordneten Gebläsebrenners und dem Brennraum bzw. dem Brennraumgehäuse zu gewährleisten. Andernfalls können aufgrund des Schwingkreises Gebläsebrenner-Brennraumgehäuse-Boden-Gebläsebrenner Beschädigungen des Gestells, des Gebläsebrenners und des Brennraumgehäuses sowie weiterer mit dem Schwingkreis verbundener Komponenten auftreten.One known approach to solving this problem is to divert forces and torques caused by the blower burner vertically down into the ground. In this case, a frame is usually used, which is mounted on the floor and to which the fan burner is attached. In particular, it is customary to attach the fan motor of the fan burner to the frame, while the other components of the fan burner are arranged on the motor. This ensures that the housing is to be interpreted in terms of its mechanical fatigue strength only taking into account its own mass. This known from the field of fans approach is disadvantageous because a variety of racks different heights is provided for different, for example, depending on the boiler type installation heights. Furthermore, it is necessary in this procedure to ensure a vibration-technical decoupling of the frame or the fan burner arranged thereon and the combustion chamber or the combustion chamber housing. Otherwise, damage to the frame, the fan burner and the combustion chamber housing as well as other components connected to the resonant circuit can occur due to the resonant circuit fan burner combustion chamber housing bottom fan burner.

DE 93 00 528 U1 offenbart eine Haltevorrichtung zum Anbringen eines Gebläsebrenners an einem Brennraumgehäuse nach dem Oberbegriff von Anspruch 1, und zwar speziell einen Kesselflansch mit einer Flanschplatte und einer Spannhülse. Die Flanschplatte dient zur Befestigung an einer Brennerplatte, die an einem Heizkessel beispielsweise als verschwenkbare Tür vorgesehen ist und eine Öffnung für den Brenner aufweist. Das Brennerrohr wird in die Spannhülse eingeschoben, die dann mittels Spannmitteln zusammengezogen wird, um den Brenner fest einzuspannen. An der Flanschplatte kann ein Tragebügel mit Haken befestigt sein, in welchen der Brenner für Wartungsarbeiten eingehängt werden kann. DE 93 00 528 U1 discloses a holding device for attaching a fan burner to a combustion chamber housing according to the preamble of claim 1, specifically a boiler flange with a flange plate and a clamping sleeve. The flange plate is used for attachment to a burner plate, which is provided on a boiler, for example, as a pivotable door and having an opening for the burner. The burner tube is inserted into the clamping sleeve, which is then tightened by means of clamping means to firmly clamp the burner. On the flange plate, a carrying handle can be attached with hooks, in which the burner can be hung for maintenance.

DE 94 16 641 U1 betrifft ein Radialgebläse zur Zuführung von Verbrennungsluft zu einem Brenner, also eine Komponente eines Gebläsebrenners und keine Komponente, die in Verbindung mit einem vollständigen Gebläsebrenner verwendet wird. DE 94 16 641 U1 relates to a radial fan for supplying combustion air to a burner, that is, a component of a fan burner and no component used in conjunction with a complete fan burner.

DE 44 36 527 A1 betrifft eine Halterung für einen Brenner, mit der das Brennerrohr mittels eines Flansches lösbar gehalten ist. Die Halterung ist mit der Spannhülse gemäß DE 93 00 528 U1 dahingehend vergleichbar. DE 44 36 527 A1 relates to a holder for a burner, with which the burner tube is releasably held by means of a flange. The holder is in accordance with the clamping sleeve DE 93 00 528 U1 comparable to that.

DE 1 551 757 A betrifft einen Öl- oder Gasbrenner und nimmt nur auf den Brenner selbst Bezug. Mittel, den Brenner an einem Brennraumgehäuse zu befestigen, sind nicht offenbart. DE 1 551 757 A concerns an oil or gas burner and refers only to the burner itself. Means to attach the burner to a combustion chamber housing are not disclosed.

Aufgabe der vorliegenden Erfindung ist es, die oben genannten Probleme bei Gebläsebrennern zu lösen. Insbesondere besteht die Aufgabe der vorliegenden Erfindung darin, eine Lösung zum Aufbau gewichtoptimierter und einfach handhabbarer Brennergehäuse bereitzustellen.The object of the present invention is to solve the above-mentioned problems with fan burners. In particular, the object of the present invention is to provide a solution for building weight-optimized and easy-to-handle burner housing.

Diese Aufgabe wird durch die vorliegende Erfindung mit einer Haltevorrichtung zum Anbringen eines Gebläsebrenners an einem Brennraumgehäuse nach den Merkmalen von Anspruch 1 gelöst.This object is achieved by the present invention with a holding device for attaching a fan burner to a combustion chamber housing according to the features of claim 1.

Ausführungsbeispiele der Erfindung ergeben sich aus den abhängigen Ansprüchen, der nachfolgenden Beschreibung und der Zeichnung.Embodiments of the invention will become apparent from the dependent claims, the following description and the drawings.

Insbesondere stellt die vorliegende Erfindung eine Haltevorrichtung für einen Gebläsebrenner bereit, mit einem Befestigungsabschnitt zur Befestigung der Haltevorrichtung an einem einen Brennraum begrenzenden Brennraumgehäuse, einem Aufnahmeabschnitt zur Aufnahme von durch einen an der Haltevorrichtung befestigten Gebläsebrenner verursachten Kräften und/oder Momenten, wobei der Aufnahmeabschnitt einen Flansch zur Anordnung des Gebläsebrenners an der Haltevorrichtung umfasst, wobei der Aufnahmeabschnitt ferner wenigstens einen Tragarm umfasst, der den Flansch mit dem Befestigungsabschnitt verbindet.In particular, the present invention provides a holding device for a blower burner, comprising a fixing portion for fixing the holding device to a combustion space defining a combustion chamber housing, a receiving portion for receiving by a on the holding device fixed fan burners caused forces and / or moments, wherein the receiving portion comprises a flange for mounting the blower burner on the holding device, wherein the receiving portion further comprises at least one support arm which connects the flange with the attachment portion.

Vorzugsweise umfasst der Befestigungsabschnitt einen Flansch zur formschlüssigen und/oder kraftschlüssigen Befestigung an einem Brennraumgehäuse oder an einer an einem Brennraumgehäuse angeordneten Einheit.Preferably, the attachment portion comprises a flange for positive and / or non-positive attachment to a combustion chamber housing or to a arranged on a combustion chamber housing unit.

Vorzugsweise umfasst der Aufnahmeabschnitt einen zweiten Tragarm.Preferably, the receiving portion comprises a second support arm.

Der Flansch des Aufnahmeabschnitts kann bevorzugt einen Motorbefestigungsbereich zur Befestigung eines Motors eines Gebläsebrenners umfassen.The flange of the receiving portion may preferably include a motor mounting portion for mounting a motor of a fan burner.

Der Flansch des Aufnahmeabschnitts kann bevorzugt einen Gehäusebefestigungsbereich zur Befestigung eines Gehäuses eines Gebläsebrenners umfassen.The flange of the receiving portion may preferably comprise a housing mounting portion for mounting a housing of a fan burner.

Wenigstens einer des wenigstens einen Tragarms kann bevorzugt eine bogenförmige Struktur aufweisen.At least one of the at least one support arm may preferably have an arcuate structure.

Vorzugsweise umfasst die Haltevorrichtung einen Stützabschnitt, der lösbar mit dem Befestigungsabschnitt und/oder dem Aufnahmeabschnitt verbunden oder ein integraler Bestandteil der Haltevorrichtung sein kann.Preferably, the holding device comprises a support portion which may be detachably connected to the attachment portion and / or the receiving portion or may be an integral part of the holding device.

Der Stützabschnitt kann bevorzugt eine Basis zur Anordnung der Haltevorrichtung auf einem Fertigung- und/oder Transport- und/oder Montagebereich umfassen.The support section may preferably comprise a base for arranging the holding device on a production and / or transport and / or assembly area.

Der Stützabschnitt kann bevorzugt Elemente zum Abstützen eines an der Haltevorrichtung angeordneten Gebläsebrenners umfassen.The support section may preferably comprise elements for supporting a blower burner arranged on the holding device.

Kurzbeschreibung der FigurenBrief description of the figures

In der folgenden Beschreibung bevorzugter Ausführungsformen wird auf die beigefügten Figuren Bezug genommen, von denen zeigen:

Fig. 1
eine schematische Darstellung einer bevorzugten Ausführungsform,
Fig. 2 bis 4
schematische Darstellungen einer weiteren bevorzugten Ausführungsform,
Fig. 5
eine schematische Darstellung einer weiteren bevorzugten Ausführungsform, und
Fig. 6 bis 9
schematische Darstellungen einer weiteren bevorzugten Ausführungsform.
In the following description of preferred embodiments, reference is made to the accompanying drawings, in which:
Fig. 1
a schematic representation of a preferred embodiment,
Fig. 2 to 4
schematic representations of a further preferred embodiment,
Fig. 5
a schematic representation of another preferred embodiment, and
Fig. 6 to 9
schematic representations of another preferred embodiment.

In den Figuren gezeigte vergleichbare Komponenten sind durch gleiche Bezugszeichen angegeben.Comparable components shown in the figures are indicated by like reference numerals.

Beschreibung bevorzugter AusführungsformenDescription of preferred embodiments

Fig. 1 zeigt eine Ausführungsform zur Anordnung eines Gebläsebrenners 2 für flüssige und/oder gasförmige Brennstoffe an einem Brennraumgehäuse 4 (z.B. Kessel), das einen nicht dargestellten Brennraum begrenzt. Die Haltevorrichtung umfasst einen Befestigungsabschnitt (nicht bezeichnet), um die Haltevorrichtung unmittelbar an dem Brennraumgehäuse 4 zu befestigen. Ferner umfasst die Haltevorrichtung eine Aufnahmeeinrichtung, mit der von dem an der Haltevorrichtung angeordneten Gebläsebrenner 2 erzeugte Kräfte und/oder Momente aufgenommen werden können, die sowohl während des Betriebs des Gebläsebrenners 2 als auch dann erzeugt werden, wenn der Gebläsebrenner 2 nicht betrieben wird. Fig. 1 shows an embodiment for arranging a fan burner 2 for liquid and / or gaseous fuels on a combustion chamber housing 4 (eg boiler), which limits a combustion chamber, not shown. The holding device comprises a fastening section (not designated) in order to fix the holding device directly to the combustion chamber housing 4. Furthermore, the holding device comprises a receiving device, with the forces and / or moments generated by the blower burner 2 arranged on the holding device can be absorbed, which are generated both during the operation of the blower burner 2 and when the blower burner 2 is not operated.

Der Befestigungsabschnitt umfasst einen Flansch 6, der beispielsweise durch Verschrauben, Verschweißen und/oder Vernieten mit dem Brennraumgehäuse 4 verbunden ist. Der Flansch 6 ist so ausgestaltet, dass zwischen dem Gebläsebrenner 2 und dem Brennraumgehäuse 4 ein Modul 8 insbesondere zur Einleitung von Brennstoffen angeordnet werden kann. Hierfür kann der Flansch 6 so ausgestaltet sein, dass er den dem Brennraumgehäuse 4 benachbarten Bereich des Moduls 8 wenigstens teilweise umfasst. Durch die Verwendung der erfindungsgemäßen Haltevorrichtung ist es jedoch nicht erforderlich, dass die zuletzt genannte Verbindung auch hinsichtlich von durch den Gebläsebrenner 2 erzeugten Kräften und/oder Momenten auszulegen ist.The attachment portion comprises a flange 6, which is connected to the combustion chamber housing 4, for example, by screwing, welding and / or riveting. The flange 6 is designed so that between the fan burner 2 and the combustion chamber housing 4, a module 8 can be arranged in particular for the introduction of fuels. For this purpose, the flange 6 can be designed such that it at least partially surrounds the region of the module 8 adjacent to the combustion chamber housing 4. By using the holding device according to the invention, however, it is not necessary that the last-mentioned compound is to be interpreted also with regard to forces and / or moments generated by the blower burner 2.

Bei der Ausführungsform von Fig. 1 umfasst der Aufnahmeabschnitt einen ersten Tragarm 10, einen zweiten Tragarm 12 und einen dritten Tragarm 14, die jeweils mit einem Ende mit dem Flansch 6 verbunden sind. Die anderen Enden der Tragarme 10, 12 und 14 sind mit einem Flansch 16 des Aufnahmeabschnitts verbunden. Der Flansch 16 dient zur Aufnahme des Gebläsebrennergehäuses 24 an dem Aufnahmeabschnitt.In the embodiment of Fig. 1 the receiving portion comprises a first support arm 10, a second support arm 12 and a third support arm 14, which are each connected at one end to the flange 6. The other ends of the support arms 10, 12 and 14 are connected to a flange 16 of the receiving portion. The flange 16 serves to receive the fan burner housing 24 at the receiving portion.

Der Flansch 16 umfasst Bereiche, um die einzelnen Komponenten des Gebläsebrenners 2, sofern erforderlich, an der Vorrichtung zu befestigen. Insbesondere umfasst der Flansch 16 einen Motorbefestigungsbereich 18, der zur Befestigung eines Motors 20 des Gebläsebrenners 2 dient. Der Motorbefestigungsbereich 18 ist hierbei so ausgestaltet, dass der Motor 20 an dem Aufnahmeabschnitt gesichert und die nicht dargestellte Antriebswelle des Motors 20 durch den Motorbefestigungsbereich 18 hindurchgeführt werden können.The flange 16 includes areas to attach the individual components of the blower burner 2 to the apparatus, if necessary. In particular, the flange 16 includes a motor mounting portion 18 which serves to secure a motor 20 of the blower burner 2. The engine mounting portion 18 is here designed so that the motor 20 secured to the receiving portion and the drive shaft, not shown, of the motor 20 can be passed through the motor mounting portion 18.

Der Flansch 16 umfasst ferner einen Gehäusebefestigungsbereich 22, der einen L-förmigen Bereich 22a aufweist. Der Gehäusebefestigungsbereich 22 dient zur Befestigung eines Gehäuses 24 des Gebläsebrenners 2 an der Aufnahmeeinrichtung.The flange 16 further includes a housing attachment portion 22 having an L-shaped portion 22a. The housing mounting portion 22 serves to attach a housing 24 of the fan burner 2 to the receiving device.

Zur Anordnung des Gebläsebrenners 2 an dem Aufnahmeabschnitt ist es vorgesehen, lösbare und nicht lösbare Verbindungen zu verwenden, wie zum Beispiel Schrauben, Nieten, Verschweißungen und dergleichen.For arranging the fan burner 2 on the receiving portion, it is intended to use detachable and non-detachable connections, such as screws, rivets, welds and the like.

Fig. 2, 3 und 4 zeigen eine weitere Ausführungsform, bei der keine mit dem Modul von Fig. 1 vergleichbare Komponente verwendet wird. Auch diese Ausführungsform umfasst einen Befestigungsabschnitt und eine Aufnahmeeinrichtung, für die unter Bezugnahme auf Fig. 1 oben gemachten Ausführungen abgesehen von folgenden Unterschieden ebenfalls gelten. Fig. 2, 3rd and 4 show a further embodiment in which none with the module of Fig. 1 comparable component is used. This embodiment also comprises a fastening portion and a receiving device, for which with reference to Fig. 1 except as noted below.

Der Flansch 6 ist hier als flächige, plattenförmige Struktur ausgebildet, die in ihren Randbereichen Bohrungen zur Befestigung des Flansches 6 an einem Brennraumgehäuse (nicht dargestellt) aufweist. Des Weiteren ist der Flansch 6 mit einer Öffnung 28 ausgestaltet, durch die ein Brennrohr 26 geführt werden kann (in Fig. 1 sind die Brennerrohre der Gebläsebrenner 2 nicht gezeigt, weil sie durch die Module 8 verdeckend umschlossen sind). Vorteilhaferweise ist die Öffnung 28 derart bemessen, dass eine formschlüssige Verbindung mit dem Brennrohr 26 möglich ist. Anstelle der Öffnung 28 kann der Flansch 6 auch eine Aufnahme, beispielsweise in U-Form, aufweisen, in die das Brennrohr 26 eingebracht werden kann.The flange 6 is here designed as a flat, plate-shaped structure, which has holes in its edge regions for fastening the flange 6 to a combustion chamber housing (not shown). Furthermore, the flange 6 is designed with an opening 28, through which a combustion tube 26 can be guided (in FIG Fig. 1 the burner tubes of the blower burner 2 are not shown because they are enclosed by the modules 8). Advantageously, the opening 28 is dimensioned such that a positive connection with the combustion tube 26 is possible. Instead of the opening 28, the flange 6 may also have a receptacle, for example in U-shape, in which the combustion tube 26 can be introduced.

Der Aufnahmeabschnitt der Ausführungsform gemäß Fig. 2 bis 4 umfasst zwei Tragarme 10 und 12, die sich von dem Flansch 6 bogenförmig weg zu dem Motorbefestigungsbereich 18 erstrecken. Der Motorbefestigungsbereich 18 umfasst hier eine kreis- bzw. ringförmige Struktur (nicht bezeichnet), die den Motor 10 umfasst und vorteilhafterweise zu dessen Befestigung dient. Der Gehäusebefestigungsbereich 22 umfasst auch hier einen L-förmigen Bereich 22a, der auch zur Anordnung weiterer Komponenten des Gebläsebrenners 2, wie zum Beispiel einem Elektronikmodul 30, verwendet werden kann.The receiving portion of the embodiment according to Fig. 2 to 4 includes two support arms 10 and 12 that extend arcuately away from the flange 6 to the motor mounting portion 18. The engine mounting portion 18 here includes a circular structure (not shown) that includes the engine 10 and advantageously serves to secure it. The case mounting portion 22 also includes an L-shaped one here Area 22 a, which can also be used to arrange other components of the fan burner 2, such as an electronic module 30.

Die in Fig. 5 dargestellte Ausführungsform stellt eine Modifikation der Ausführungsform von Fig. 2 bis 4 dar. Zusätzlich zu den in Fig. 2 bis 4 gezeigten Komponenten umfasst die Ausführungsform von Fig. 5 einen Stützbereich 32. Bei dieser Ausführungsform ist der Stützbereich 32 lösbar mit den Befestigungsund Aufnahmeeinrichtungen verbunden und kann bei der (vorab) Montage der Haltevorrichtung und der Gebläsebrenners, deren Transport und deren Montage am Brennraumgehäuse, beispielsweise unter Verwendung von Paletten und/oder Hubstaplern, verwendet werden.In the Fig. 5 illustrated embodiment represents a modification of the embodiment of Fig. 2 to 4 In addition to the in Fig. 2 to 4 shown components includes the embodiment of Fig. 5 a support portion 32. In this embodiment, the support portion 32 is detachably connected to the mounting and receiving means and may be used in the (pre) assembly of the support and the blower burner, their transport and mounting on the combustion chamber housing, for example using pallets and / or lift trucks become.

Der Stützbereich 32 erlaubt es, den Gebläsebrenner 2 vorgefertigt mit den daran angeordneten Befestigungs- und Aufnahmeeinrichtungen bereitzustellen.The support area 32 makes it possible to provide the blower burner 2 prefabricated with the fastening and receiving devices arranged thereon.

Der Stützbereich 32 umfasst eine Basis 34, mit der die gesamte in Fig. 5 gezeigte Anordnung bei der (vorab) Montage und/oder bei Montage am Brennraumgehäuse auf einem Montagebereich (z.B. Boden, Gabelstapler) angeordnet werden kann. Der Stützbereich 32 umfasst ferner Elemente 36, die Befestigungs- und Aufnahmeeinrichtungen und vorteilhafterweise auch den Gebläsebrenner 2 abzustützen. Nach Montage an dem Brennraumgehäuse kann der Stützbereich 32 entfernt werden.The support region 32 comprises a base 34, with which the entire in Fig. 5 arrangement shown in the (pre) assembly and / or assembly on the combustion chamber housing on a mounting area (eg floor, forklift) can be arranged. The support region 32 further comprises elements 36 to support the attachment and receiving devices and advantageously also the blower burner 2. After mounting on the combustion chamber housing, the support region 32 can be removed.

Vorteilhafterweise wird der Stützbereich 32 auch beim Transport verwendet.Advantageously, the support area 32 is also used during transport.

Fig. 6 bis 9 zeigen eine weitere Ausführungsform. Auch diese Ausführungsform umfasst einen Befestigungsabschnitt und eine Aufnahmeeinrichtung, für die die unter Bezugnahme auf Fig. 1 bis 5 oben gemachten Ausführungen abgesehen von folgenden Unterschieden ebenfalls gelten. Fig. 6 to 9 show a further embodiment. This embodiment also comprises a fixing portion and a receiving device, for which the reference to Fig. 1 to 5 except as noted below.

Bei dieser Ausführungsform ist der Stützbereich 32 ein integraler Bestandteil der Haltvorrichtung. Neben den sich von einer Seite des Flansches 6 erstreckenden Tragarmen 10 und 12 geht von dem Flansch 6 von dessen gegenüberliegender Seite ein weiterer Tragarm 38 aus, der in eines der Elemente 36 übergeht.In this embodiment, the support portion 32 is an integral part of the holding device. In addition to the support arms 10 and 12 extending from one side of the flange 6, another support arm 38 extends from the flange 6 from its opposite side and merges into one of the elements 36.

Von der Basis 34 des Stützbereichs 32 erstreckt sich im Wesentlichen senkrecht nach oben ein beispielsweise flächig ausgebildeter Auflagebereich 40. Der Auflagebereich 40 dient zu Auflage eines Teils des Gehäuses eines Gebläsebrenners und zur Aufnahme von Kräften und/oder Momenten während Monatage, Transport und Betrieb.From the base 34 of the support portion 32 extends substantially vertically upwards, for example, a flat trained support area 40. The support area 40 serves to rest part of the housing of a fan burner and to absorb forces and / or moments during the month, transport and operation.

Normalerweise wird die Haltevorrichtung mit einem daran angeordneten Gebläsebrenner so an einem Brennraum befestigt, dass der Stützbereich 32 nicht auf dem Boden aufliegt. Es ist aber auch denkbar, die Haltevorrichtung mit einem daran angeordneten Gebläsebrenner so an einem Brennraum zu befestigen, dass der Stützbereich 32 auf dem Boden aufliegt.Normally, the holding device with a fan burner arranged thereon is fastened to a combustion chamber such that the support region 32 does not rest on the floor. But it is also conceivable to attach the holding device with a fan burner arranged thereon on a combustion chamber, that the support portion 32 rests on the floor.

Allen Ausführungsformen ist gemeinsam, dass es im Gegensatz zum Stand der Technik nicht mehr erforderlich ist, das Gehäuse des Gebläsebrenners hinsichtlich der mechanischen Dauerfestigkeit zur Aufnahme von Kräften und/oder Momenten des Gebläsebrenners insgesamt gezielt auszulegen. Vielmehr reicht es aus, hierbei das Gehäuse des Gebläsebrenners alleine zu berücksichtigen.All embodiments have in common that, in contrast to the prior art, it is no longer necessary to design the housing of the fan burner as a whole in a targeted manner with regard to the mechanical fatigue strength for receiving forces and / or torques of the fan burner. Rather, it is sufficient here to consider the housing of the fan burner alone.

Die Verwendung der vorliegenden Erfindung ermöglicht es hinsichtlich von Gebläsebrennern, und insbesondere von deren Gehäusen, ein Leichbaukonzept umzusetzen. Die bei Gebläsebrennern dadurch möglichen Gewichtseinsparungen sind größer als die Aufwendungen, die bei einer Umsetzung der vorliegenden Erfindung erforderlich sind.The use of the present invention makes it possible, with regard to blower burners, and in particular their housings, to implement a light-weight concept. The possible weight savings associated with fan burners are greater than the expenses required in an implementation of the present invention.

Auch der Fertigungsaufwand insgesamt wird durch die vorliegende Erfindung reduziert. Eine Umsetzung der vorliegenden Erfindung, insbesondere eine Berechung und Konstruktion einer erfindungsgemäßen Vorrichtung hinsichtlich ihrer Dauerfestigkeit, ist deutlich einfacher als dies bei der Auslegung und Konstruktion herkömmliche Gebläsebrenner erforderlich ist. Auch die insgesamt anfallenden Kosten werden durch die vorliegende Erfindung reduziert.Also, the total manufacturing cost is reduced by the present invention. An implementation of the present invention, in particular a calculation and construction of an inventive Device with respect to its fatigue strength, is much simpler than is required in the design and construction of conventional forced draft burners. The total costs incurred are reduced by the present invention.

Des Weiteren erlaubt die vorliegende Erfindung, hinsichtlich von Gebläsebrennern ein Leichtbaukonzept derart vorzusehen, dass beispielsweise auch im montierten Zustand eine teilweise Öffnung des Gehäuses des Gebläsebrenners, beispielsweise bei Montage, Inbetriebnahme, normalen Betrieb und Wartung, möglich ist. So kann beispielsweise eine Gestaltung des Gehäuses, die eine Öffnung des Gehäuseoberteils ermöglicht, eine bedeutsame Verbesserung bei Inbetriebnahme und Wartung darstellen. Bei Inbetriebnahme und Wartung ist es oftmals erforderlich, auf die Mischeinrichtung zugreifen zu können. Bisher war es hierfür erforderlich, den gesamten Gebläsebrenner seitlich von dem Brennraumgehäuse wegzuklappen. Die vorliegende Erfindung vermeidet dies, weil es nun möglich ist, Gehäuse von Gebläsebrennern mit entsprechenden Öffnungen zu versehen, wobei auf die bisher Erfordernis, die mechanische Festigkeit des Gesamtsystems berücksichtigen zu müssen, keine Rücksicht genommen werden muss.Furthermore, the present invention makes it possible to provide a lightweight construction concept with regard to blower burners such that partial opening of the blower burner housing, for example during installation, commissioning, normal operation and maintenance, is also possible in the installed state. For example, a design of the housing that allows an opening of the housing top, a significant improvement in commissioning and maintenance represent. During commissioning and maintenance, it is often necessary to be able to access the mixing device. Previously, it was necessary for this to fold away the entire fan burner laterally from the combustion chamber housing. The present invention avoids this because it is now possible to provide housing of fan burners with corresponding openings, taking no account of the hitherto requirement to take into account the mechanical strength of the entire system.

Claims (7)

  1. Holding device for mounting a blower burner (2) on a combustion chamber housing (4), having:
    a fastening portion (6) for fastening the holding device to a combustion chamber housing (4) bounding a combustion chamber,
    an absorbing portion for absorbing forces and/or torques caused by a blower burner (2) which is fastened to the holding device, wherein the absorbing portion comprises a flange (16) for arranging the blower burner (2) on the holding device,
    characterized in that the absorbing portion furthermore comprises at least one supporting arm (10, 12, 14) which connects the flange (16) to the fastening portion (6).
  2. Holding device according to Claim 1, in which the fastening portion comprises a flange (6) for the form-fitting and/or force-fitting fastening to a combustion chamber housing (4) or to a unit (8) arranged on a combustion chamber housing (4).
  3. Holding device according to either of the preceding claims, in which the absorbing portion comprises a second supporting arm (12).
  4. Holding device according to one of the preceding claims, in which the flange (16) of the absorbing portion comprises a motor fastening region (18) for the fastening of a motor (20) of the blower burner (2).
  5. Holding device according to one of the preceding claims, in which the flange (16) of the absorbing portion comprises a housing fastening region (22, 22a) for the fastening of a housing (24) of the blower burner (2).
  6. Holding device according to one of the preceding claims, in which at least one of the at least one supporting arms (10, 12) has a curved structure.
  7. Holding device according to one of the preceding claims, with a supporting portion (32) which is connected releasably to the fastening portion and/or to the absorbing portion or forms an integral part of the holding device.
EP05028069.2A 2004-12-23 2005-12-21 Device for mounting a blower-burner on a combustion chamber housing Active EP1686318B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102004062185A DE102004062185C5 (en) 2004-12-23 2004-12-23 Holding device for attaching a fan burner to a combustion chamber housing

Publications (2)

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EP1686318A1 EP1686318A1 (en) 2006-08-02
EP1686318B1 true EP1686318B1 (en) 2016-10-12

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EP (1) EP1686318B1 (en)
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US11353243B1 (en) * 2020-12-09 2022-06-07 Haier Us Appliance Solutions, Inc. Gas fueled water heater appliance having one or more burner mounting features

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Publication number Publication date
CN1807984B (en) 2011-06-08
DE102004062185B3 (en) 2006-07-13
DE102004062185C5 (en) 2013-09-26
EP1686318A1 (en) 2006-08-02
CN1807984A (en) 2006-07-26
US20060160042A1 (en) 2006-07-20
US8177548B2 (en) 2012-05-15

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