EP1160520A2 - Heat generator with two burners and a heat exchanger - Google Patents

Heat generator with two burners and a heat exchanger Download PDF

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Publication number
EP1160520A2
EP1160520A2 EP01111752A EP01111752A EP1160520A2 EP 1160520 A2 EP1160520 A2 EP 1160520A2 EP 01111752 A EP01111752 A EP 01111752A EP 01111752 A EP01111752 A EP 01111752A EP 1160520 A2 EP1160520 A2 EP 1160520A2
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EP
European Patent Office
Prior art keywords
burner
heat
heat exchanger
burners
generator according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP01111752A
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German (de)
French (fr)
Other versions
EP1160520A3 (en
Inventor
Datong Wu
Juergen Waidner
Joachim Bruns
Thomas-Eckart Frieling
Hans-Werner Dr. Zimmermann
Andreas Schall
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Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1160520A2 publication Critical patent/EP1160520A2/en
Publication of EP1160520A3 publication Critical patent/EP1160520A3/en
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
    • F02G1/00—Hot gas positive-displacement engine plants
    • F02G1/04—Hot gas positive-displacement engine plants of closed-cycle type
    • F02G1/043—Hot gas positive-displacement engine plants of closed-cycle type the engine being operated by expansion and contraction of a mass of working gas which is heated and cooled in one of a plurality of constantly communicating expansible chambers, e.g. Stirling cycle type engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
    • F02G2254/00—Heat inputs
    • F02G2254/10—Heat inputs by burners
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D18/00—Small-scale combined heat and power [CHP] generation systems specially adapted for domestic heating, space heating or domestic hot-water supply
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2101/00—Electric generators of small-scale CHP systems
    • F24D2101/80—Electric generators driven by external combustion engines, e.g. Stirling engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2103/00—Thermal aspects of small-scale CHP systems
    • F24D2103/10—Small-scale CHP systems characterised by their heat recovery units
    • F24D2103/13—Small-scale CHP systems characterised by their heat recovery units characterised by their heat exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2103/00—Thermal aspects of small-scale CHP systems
    • F24D2103/20—Additional heat sources for supporting thermal peak loads
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2200/00—Heat sources or energy sources
    • F24D2200/04—Gas or oil fired boiler
    • F24D2200/043—More than one gas or oil fired boiler
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
    • F24H1/40—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water tube or tubes

Definitions

  • the invention relates to a heat generator with two burners and one Heat exchanger, the burners supplying the heat exchanger with heat, to heat the liquid flowing through the heat exchanger.
  • Heat generators are mainly used in heating devices for heating and the Water heating used, the burner to the required heat output is adjusted. This use of the heat generator normally requires a degree of modulation of e.g. 1: 6. In low energy houses exist lower heat requirements, but there are higher requirements the degree of modulation e.g. 1:10 posed.
  • the second burner is there a Stirling burner that heats a Stirling engine and a generator that is in the heat generator with the first burner to generate larger heat outputs is involved. Because both burners are housed in one combustion chamber they can negatively influence each other, especially if if only one of the two burners is in operation.
  • the heat exchanger is there only adapted to the heat output of the first burner.
  • a second Burner is assigned, which are designed for different heating outputs, and on different sections of the common heat exchanger and / or in different directions these sub-areas act, depending on the heating power requirement the first burner and / or the second burner can be put into operation (are).
  • the common heat exchanger can be used individually or together by both burners are supplied with heat, the partial areas of the heat exchanger with their heat transfer surfaces to the different outputs of the two burners are adjusted. Through the optional commissioning of the Both burners will have a much higher degree of modulation in heat output reached.
  • the burners are fully shared with the heat generator Integrated heat exchanger, which means not only a robust structure, but also a small space requirement for the heat generator can also be achieved.
  • a space-saving heat generator is realized in that the common Heat exchanger with its partial areas directly to the combustion chamber exits of the combustion chamber parts, and in that the exhaust gas outlets the partial areas of the heat exchanger in a common exhaust gas discharge system pass over.
  • the adaptation of the common heat exchanger to the different Heat output of the burner is simple in one embodiment possible by using a heat exchanger in the upper area with its heating cables only assigned to the first, more powerful burner is while the lower area of the heat exchanger with its heating cables is assigned to both burners and that all heating cables in series and / or are connected in parallel, or in that the first burner and the second Burner with their flow directions perpendicular to each other on the partial areas of the heat exchanger.
  • the heat exchanger and the split combustion chamber can be designed in perform and manufacture in a known manner.
  • first burner 10 and a second burner 20 housed in combustion chamber parts 11 and 21 of a single combustion chamber and so decoupled from each other.
  • the supply of the gas-air mixture to the Burners 10 and 20 with the control option can be made in a known manner. Since this is not important in the context of the present invention not discussed in more detail.
  • Section 30.2 with the smaller one Heat transfer area and with parts of the heating cables 32 is lower Adjusted thermal output of the burner 20. Since the burners 10 and 20 each can be put into operation individually and together according to the power requirement a very large power range with a modulation level that is equal to or can be greater than 1:10.
  • the heating cables 31 and 32 are of the one to be heated Liquid flows through and can be connected in series and / or in parallel his.
  • the exhaust gas outlets 33 and 34 of the sections 30.1 and 30.2 of the heat exchanger 30 go directly into a common exhaust gas discharge system 40 with exhaust pipe 41 over.
  • the only difference between the heat generator according to FIG. 2 and the heat generator is that 1 that instead of a conventional burner 20, a Stirling burner 22 with Stirling engine 23 and generator 24 is used, in addition to Power generation is used.
  • the burners 10 and 20 can also in different Directions 15 and 25 to the partial areas 30.1 and 30.2 of the common Heat exchanger 30 act.
  • the flow directions 15 and 25 are perpendicular to each other and meet different sizes and thermal outputs the burner 10 and 20 adapted heat transfer surfaces of the Heat exchanger 30.
  • the cooled, leaving the heat exchanger 30 Exhaust gas enters a common exhaust gas discharge system 40 with an exhaust pipe 41.
  • the thermal outputs of the burners 10 and 20 can be adjusted so that the power range from the smallest adjustable Heating output of the less powerful burner 20 up to the maximum Total heating power of the two burners 10 and 20 is sufficient, which is a very large one Degree of modulation there.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Gas Burners (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

The boiler comprises a common heat exchanger (30) and two burners (10, 20). They occupy individual combustion chambers (11, 21) and are designed for different heating outputs. They heat different regions (30.1, 30.2) of the common heat exchanger, and/or are directed in different directions onto these regions. Burner heat output and heat exchanger region heated, are individually imatched. In accordance with heating demand, first- and/or second burners are brought into operation.

Description

Stand der TechnikState of the art

Die Erfindung betrifft einen Wärmeerzeuger mit zwei Brennern und einem Wärmeübertrager, wobei die Brenner den Wärmeübertrager mit Wärme versorgen, um die durch den Wärmeübertrager fließende Flüssigkeit zu erwärmen.The invention relates to a heat generator with two burners and one Heat exchanger, the burners supplying the heat exchanger with heat, to heat the liquid flowing through the heat exchanger.

Wärmeerzeuger werden vorwiegend in Heizgeräten für die Heizung und die Warmwasserbereitung eingesetzt, wobei der Brenner an die geforderte Wärmeleistung angepasst ist. Dieser Einsatz des Wärmeerzeugers erfordert normalerweise einen Modulationsgrad von z.B. 1:6. Bei Niedrigenergiehäusern bestehen niedrigere Wärmeanforderungen, es sind jedoch höhere Anforderungen an den Modulationsgrad von z.B. 1:10 gestellt.Heat generators are mainly used in heating devices for heating and the Water heating used, the burner to the required heat output is adjusted. This use of the heat generator normally requires a degree of modulation of e.g. 1: 6. In low energy houses exist lower heat requirements, but there are higher requirements the degree of modulation e.g. 1:10 posed.

Es ist auch denkbar, zwei Brenner einzusetzen, einer für die Heizwärmeleistung und einen für die Brauchwasserbereitung. Dies führt aber zu einem hohen Aufwand und einem großen Bauvolumen für das Heizgerät. It is also conceivable to use two burners, one for the heat output and one for domestic water heating. However, this leads to high expenditure and a large volume for the heater.

Es ist auch schon vorgeschlagen worden, in einem Heizgerät zwei Brenner einzusetzen, wobei der zweite Brenner Strom erzeugt. Der zweite Brenner ist dabei ein Stirlingbrenner, der einen Stirlingmotor und einen Generator beheizt, der in den Wärmeerzeuger mit dem ersten Brenner zur Erzeugung größerer Wärmeleistungen einbezogen ist. Da beide Brenner in einer Brennkammer untergebracht sind, können sie sich gegenseitig negativ beeinflussen, insbesondere dann, wenn nur einer der beiden Brenner in Betrieb ist. Der Wärmeübertrager ist dabei nur an die Wärmeleistung des ersten Brenners angepasst.It has also been proposed to use two burners in one heater, the second burner generating electricity. The second burner is there a Stirling burner that heats a Stirling engine and a generator that is in the heat generator with the first burner to generate larger heat outputs is involved. Because both burners are housed in one combustion chamber they can negatively influence each other, especially if if only one of the two burners is in operation. The heat exchanger is there only adapted to the heat output of the first burner.

Es ist Aufgabe der Erfindung, einen Wärmeerzeuger der eingangs erwähnten Art so zu verbessern, dass ein höherer Modulationsgrad von 1:10 leicht erreicht werden kann.It is an object of the invention to provide a heat generator of the type mentioned to be improved so that a higher degree of modulation of 1:10 is easily achieved can be.

Diese Aufgabe wird nach der Erfindung dadurch gelöst, dass dem Wärmeübertrager neben dem ersten Brenner in einer einzigen Brennkammer ein zweiter Brenner zugeordnet ist, die auf unterschiedliche Heizleistungen ausgelegt sind, und auf verschiedene, auf diese Heizleistungen angepasste Teilbereiche des gemeinsamen Wärmeübertragers und/oder in unterschiedlichen Richtungen auf diese Teilbereiche einwirken, und dass in Abhängigkeit von dem Heizleistungsbedarf der erste Brenner und/oder der zweite Brenner in Betrieb setzbar ist (sind).This object is achieved according to the invention in that the heat exchanger in addition to the first burner in a single combustion chamber, a second Burner is assigned, which are designed for different heating outputs, and on different sections of the common heat exchanger and / or in different directions these sub-areas act, depending on the heating power requirement the first burner and / or the second burner can be put into operation (are).

Der gemeinsame Wärmeübertrager kann von beiden Brennern individuell oder gemeinsam mit Wärme versorgt werden, wobei die Teilbereiche des Wärmeübertragers mit ihren Wärmeübertragungsflächen an die unterschiedlichen Leistungen der beiden Brenner angepasst sind. Durch die wahlweise Inbetriebsetzung der beiden Brenner wird ein wesentlich höherer Modulationsgrad der Wärmeleistung erreicht. Die Brenner sind voll in den Wärmeerzeuger mit dem gemeinsamen Wärmeübertrager integriert, wodurch nicht nur ein robuster Aufbau, sondern auch ein kleiner Raumbedarf für den Wärmeerzeuger erreicht werden.The common heat exchanger can be used individually or together by both burners are supplied with heat, the partial areas of the heat exchanger with their heat transfer surfaces to the different outputs of the two burners are adjusted. Through the optional commissioning of the Both burners will have a much higher degree of modulation in heat output reached. The burners are fully shared with the heat generator Integrated heat exchanger, which means not only a robust structure, but also a small space requirement for the heat generator can also be achieved.

Ein raumsparender Wärmeerzeuger wird dadurch realisiert, dass der gemeinsame Wärmeübertrager mit seinen Teilbereichen sich unmittelbar an die Brennkammerausgänge der Brennkammerteile anschließt, sowie dadurch, dass die Abgas-Ausgänge der Teilbereiche des Wärmeübertragers in ein gemeinsames Abgas-Abführungssystem übergehen.A space-saving heat generator is realized in that the common Heat exchanger with its partial areas directly to the combustion chamber exits of the combustion chamber parts, and in that the exhaust gas outlets the partial areas of the heat exchanger in a common exhaust gas discharge system pass over.

Die Anpassung des gemeinsamen Wärmeübertragers an die unterschiedlichen Wärmeleistungen der Brenner ist nach einer Ausgestaltung in einfacher Weise dadurch möglich, dass ein Wärmeübertrager verwendet ist, der im oberen Bereich mit seinen Heizzügen nur dem ersten, leistungsstärkeren Brenner zugeordnet ist, während der untere Bereich des Wärmeübertragers mit seinen Heizzügen beiden Brennern zugeordnet ist, und dass alle Heizzüge in Reihe und/oder parallel geschaltet sind, oder dadurch, dass der erste Brenner und der zweite Brenner mit ihren Strömungsrichtungen senkrecht zueinander auf die Teilbereiche des Wärmetauschers einwirken.The adaptation of the common heat exchanger to the different Heat output of the burner is simple in one embodiment possible by using a heat exchanger in the upper area with its heating cables only assigned to the first, more powerful burner is while the lower area of the heat exchanger with its heating cables is assigned to both burners and that all heating cables in series and / or are connected in parallel, or in that the first burner and the second Burner with their flow directions perpendicular to each other on the partial areas of the heat exchanger.

Der Wärmeübertrager und die geteilte Brennkammer lassen sich konstruktiv in bekannter Weise ausführen und herstellen. The heat exchanger and the split combustion chamber can be designed in perform and manufacture in a known manner.

Die Erfindung wird anhand von der Zeichnung dargestellten Ausführungsbeispielen näher erläutert. Es zeigen:

Fig. 1
in schematischer Darstellung einen Wärmeerzeuger mit zwei Brennern, die auf unterschiedlich große Teilbereiche des gemeinsamen Wärmeübertragers einwirken,
Fig. 2
ein ähnliches Ausführungsbeispiel eines Wärmeerzeugers, wobei ein Brenner als Stirlingbrenner mit Stirlingmotor und Generator ausgebildet ist, und
Fig. 3
ein dem Wärmeerzeuger nach Fig. 2 ähnliches Ausführungsbeispiel, bei dem die beiden Brenner in senkrecht zueinander stehenden Richtungen auf Teilbereiche des Wärmeübertragers einwirken.
The invention is explained in more detail with reference to exemplary embodiments shown in the drawing. Show it:
Fig. 1
a schematic representation of a heat generator with two burners, which act on different areas of the common heat exchanger,
Fig. 2
a similar embodiment of a heat generator, wherein a burner is designed as a Stirling burner with a Stirling engine and generator, and
Fig. 3
an embodiment similar to the heat generator according to FIG. 2, in which the two burners act on portions of the heat exchanger in mutually perpendicular directions.

Wie in Fig. 1 angedeutet ist, sind ein erster Brenner 10 und ein zweiter Brenner 20 in Brennkammerteilen 11 und 21 einer einzigen Brennkammer untergebracht und so voneinander entkoppelt. Die Zuführung des Gas-Luftgemisches zu den Brennern 10 und 20 mit der Regelmöglichkeit kann in bekannter Weise erfolgen. Da dies im Rahmen der vorliegenden Erfindung nicht von Bedeutung ist, wird darauf nicht näher eingegangen.As indicated in FIG. 1, there are a first burner 10 and a second burner 20 housed in combustion chamber parts 11 and 21 of a single combustion chamber and so decoupled from each other. The supply of the gas-air mixture to the Burners 10 and 20 with the control option can be made in a known manner. Since this is not important in the context of the present invention not discussed in more detail.

Unmittelbar an die Ausgänge der Brennkammerteile 11 und 21 schließt sich ein gemeinsamer Wärmeübertrager 30 an. Dabei ist ein Teilbereich 30.1 mit der größeren Wärmeübertragungsfläche und Heizzügen 31 und 32 an die größere Wärmeleistung des Brenners 10 angepasst. Der Teilbereich 30.2 mit der kleineren Wärmeübertragungsfläche und mit Teilen der Heizzüge 32 ist an die niedrigere Wärmeleistung des Brenners 20 angepasst. Da die Brenner 10 und 20 je nach Leistungsbedarf einzeln und gemeinsam in Betrieb setzbar sind, ergibt sich ein sehr großer Leistungsbereich mit einem Modulationsgrad, der gleich oder größer als 1:10 betragen kann. Die Heizzüge 31 und 32 werden von der zu erwärmenden Flüssigkeit durchflossen und können in Reihe und/oder parallel geschaltet sein.Immediately at the outputs of the combustion chamber parts 11 and 21 includes common heat exchanger 30. A sub-area 30.1 with the larger heat transfer area and heating trains 31 and 32 to the larger Adjusted thermal output of the burner 10. Section 30.2 with the smaller one Heat transfer area and with parts of the heating cables 32 is lower Adjusted thermal output of the burner 20. Since the burners 10 and 20 each can be put into operation individually and together according to the power requirement a very large power range with a modulation level that is equal to or can be greater than 1:10. The heating cables 31 and 32 are of the one to be heated Liquid flows through and can be connected in series and / or in parallel his.

Die Abgas-Ausgänge 33 und 34 der Teilbereiche 30.1 und 30.2 des Wärmeübertragers 30 gehen unmittelbar in ein gemeinsames Abgas-Abführungssystem 40 mit Abgasrohr 41 über.The exhaust gas outlets 33 and 34 of the sections 30.1 and 30.2 of the heat exchanger 30 go directly into a common exhaust gas discharge system 40 with exhaust pipe 41 over.

Der Wärmeerzeuger nach Fig. 2 unterscheidet sich nur dadurch vom Wärmeerzeuger nach Fig. 1, dass anstelle eines üblichen Brenners 20 ein Stirlingbrenner 22 mit Stirlingmotor 23 und Generator 24 eingesetzt ist, der zusätzlich zur Stromerzeugung dient.The only difference between the heat generator according to FIG. 2 and the heat generator is that 1 that instead of a conventional burner 20, a Stirling burner 22 with Stirling engine 23 and generator 24 is used, in addition to Power generation is used.

Wie Fig. 3 zeigt, können die Brenner 10 und 20 auch in unterschiedlichen Richtungen 15 und 25 auf die Teilbereiche 30.1 und 30.2 des gemeinsamen Wärmeübertragers 30 einwirken. Die Strömungsrichtungen 15 und 25 stehen senkrecht zueinander und treffen auf unterschiedlich große und an die Wärmeleistungen der Brenner 10 und 20 angepasste Wärmeübertragungsflächen des Wärmeübertragers 30. Das den Wärmeübertrager 30 verlassende, abgekühlte Abgas gelangt in ein gemeinsames Abgas-Abführungssystem 40 mit Abgasrohr 41.3 shows, the burners 10 and 20 can also in different Directions 15 and 25 to the partial areas 30.1 and 30.2 of the common Heat exchanger 30 act. The flow directions 15 and 25 are perpendicular to each other and meet different sizes and thermal outputs the burner 10 and 20 adapted heat transfer surfaces of the Heat exchanger 30. The cooled, leaving the heat exchanger 30 Exhaust gas enters a common exhaust gas discharge system 40 with an exhaust pipe 41.

In allen Ausführungsbeispielen können die Wärmeleistungen der Brenner 10 und 20 so abgestimmt werden, dass der Leistungsbereich von der kleinsten einstellbaren Heizleistung des leistungsschwächeren Brenners 20 bis zur maximalen Summen-Heizleistung der beiden Brenner 10 und 20 reicht, was einen sehr großen Modulationsgrad gibt.In all exemplary embodiments, the thermal outputs of the burners 10 and 20 can be adjusted so that the power range from the smallest adjustable Heating output of the less powerful burner 20 up to the maximum Total heating power of the two burners 10 and 20 is sufficient, which is a very large one Degree of modulation there.

Claims (8)

Wärmeerzeuger mit zwei Brennern und einem Wärmeübertrager, wobei die Brenner den Wärmeübertrager mit Wärme versorgen, um die durch den Wärmeübertrager fließende Flüssigkeit zu erwärmen,
dadurch gekennzeichnet, dass dem Wärmeübertrager (30) neben dem ersten Brenner (10) in einer einzigen Brennkammer (11, 21) ein zweiter Brenner (20) zugeordnet ist, die auf unterschiedliche Heizleistungen ausgelegt sind, und auf verschiedene, auf diese Heizleistungen angepasste Teilbereiche (30.1; 30.2) des gemeinsamen Wärmeübertragers (30) und/ oder in unterschiedlichen Richtungen (15, 25) auf diese Teilbereiche (30.1; 30.2) einwirken, und dass in Abhängigkeit von dem Heizleistungsbedarf der erste Brenner (10) und/oder der zweite Brenner (20) in Betrieb setzbar ist (sind).Heat generator with two burners and one heat exchanger, the burners supplying the heat exchanger with heat in order to heat the liquid flowing through the heat exchanger,
characterized in that, in addition to the first burner (10) in a single combustion chamber (11, 21) , the heat exchanger (30) is assigned a second burner (20), which are designed for different heating capacities, and for different partial areas adapted to these heating capacities (30.1; 30.2) of the common heat exchanger (30) and / or in different directions (15, 25) act on these partial areas (30.1; 30.2), and that depending on the heating power requirement, the first burner (10) and / or the second Burner (20) can be put into operation. Wärmeerzeuger nach Anspruch 1,
dadurch gekennzeichnet, dass der gemeinsame Wärmeübertrager (30) mit seinen Teilbereichen (30.1; 30.2) sich unmittelbar an die Brennkammerausgänge der Brennkammerteile (11, 21) anschließt.Heat generator according to claim 1,
characterized in that the common heat exchanger (30) with its partial areas (30.1; 30.2) directly adjoins the combustion chamber outputs of the combustion chamber parts (11, 21). Wärmeerzeuger nach Anspruch 1 oder 2,
dadurch gekennzeichnet, dass die Abgas-Ausgänge (33, 34) der Teilbereiche (30.1; 30.2) des Wärmeübertragers (30) in ein gemeinsames Abgas-Abführungssystem (40) übergehen.Heat generator according to claim 1 or 2,
characterized in that the exhaust gas outputs (33, 34) of the partial areas (30.1; 30.2) of the heat exchanger (30) merge into a common exhaust gas removal system (40). Wärmeerzeuger nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet, dass ein Wärmeübertrager (30) verwendet ist, der im oberen Bereich mit seinen Heizzügen (31) nur dem ersten, leistungsstärkeren Brenner (10) zugeordnet ist, während der untere Bereich des Wärmeübertragers (30) mit seinen Heizzügen (32) beiden Brennern (10, 20) zugeordnet ist, und dass alle Heizzüge (31, 32) in Reihe und/oder parallel geschaltet sind.Heat generator according to one of claims 1 to 3,
characterized in that a heat exchanger (30) is used which in the upper region with its heating trains (31) is assigned only to the first, more powerful burner (10), while the lower region of the heat exchanger (30) with its heating trains (32) is both Burners (10, 20) is assigned, and that all heating cables (31, 32) are connected in series and / or in parallel. Wärmeerzeuger nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet, dass der erste Brenner (10) und der zweite Brenner (20) mit ihren Strömungsrichtungen (15, 25) senkrecht zueinander auf die Teilbereiche (30.1, 30.2) des Wärmetauschers (30) einwirken.Heat generator according to one of claims 1 to 3,
characterized in that the first burner (10) and the second burner (20) act with their flow directions (15, 25) perpendicular to one another on the partial regions (30.1, 30.2) of the heat exchanger (30). Wärmeerzeuger nach einem der Ansprüche 1 bis 5,
dadurch gekennzeichnet, dass der erste Brenner (10) als Booster-Brenner oder Hochleistungs-Brenner ausgebildet ist, während als zweiter Brenner (20) ein StirlingBrenner (22) mit Stirlingmotor (23) und Generator (24) zur zusätzlichen Stromerzeugung verwendet ist.Heat generator according to one of claims 1 to 5,
characterized in that the first burner (10) is designed as a booster burner or high-performance burner, while a Stirling burner (22) with a Stirling engine (23) and generator (24) is used as the second burner (20) for additional power generation. Wärmeerzeuger nach einem der Ansprüche 1 bis 6,
dadurch gekennzeichnet, dass die beiden Brenner (10, 20) mit einem Gas-Luftgemisch gespeist sind.Heat generator according to one of claims 1 to 6,
characterized in that the two burners (10, 20) are fed with a gas-air mixture. Wärmeerzeuger nach einem der Ansprüche 1 bis 7,
dadurch gekennzeichnet, dass die Teilbereiche (30.1; 30.2) des Wärmeübertragers (30) Wärmeübertragungsflächen aufweisen, die an die Wärmeleistungen der zugeordneten Brenner (10, 20) angepasst sind.Heat generator according to one of claims 1 to 7,
characterized in that the partial areas (30.1; 30.2) of the heat exchanger (30) have heat transfer surfaces which are adapted to the heat outputs of the associated burners (10, 20).
EP01111752A 2000-06-03 2001-05-15 Heat generator with two burners and a heat exchanger Withdrawn EP1160520A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10027652 2000-06-03
DE10027652A DE10027652A1 (en) 2000-06-03 2000-06-03 Heat generator with two burners and one heat exchanger

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EP1160520A2 true EP1160520A2 (en) 2001-12-05
EP1160520A3 EP1160520A3 (en) 2003-07-23

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WO2003052327A1 (en) * 2001-12-19 2003-06-26 Microgen Energy Limited A heating appliance
FR2854229A1 (en) * 2003-04-25 2004-10-29 Realisation Mecaniques Engenee Heat exchanger for use in gas boiler, has primary and secondary heat exchanger arranged to transverse flow of hot air towards interstice of exchangers, and duct passing another flow of hot air into secondary exchanger
WO2008071970A1 (en) * 2006-12-14 2008-06-19 Microgen Engine Corporation Holding B.V. A heating system
EP1944561A3 (en) * 2007-01-15 2011-04-13 PLEWA Schornsteintechnik und Heizsysteme GmbH Heating system with two burners
US11796180B2 (en) 2019-09-16 2023-10-24 Enerco Group Inc. Systems and arrangements for portable heater with connectable accessory

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US7021554B2 (en) 2001-12-19 2006-04-04 Microgen Energy Limited Heating appliance
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EP1944561A3 (en) * 2007-01-15 2011-04-13 PLEWA Schornsteintechnik und Heizsysteme GmbH Heating system with two burners
US11796180B2 (en) 2019-09-16 2023-10-24 Enerco Group Inc. Systems and arrangements for portable heater with connectable accessory

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EP1160520A3 (en) 2003-07-23

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