EP1099906A1 - Heating appliance with premix burner - Google Patents

Heating appliance with premix burner Download PDF

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Publication number
EP1099906A1
EP1099906A1 EP00122574A EP00122574A EP1099906A1 EP 1099906 A1 EP1099906 A1 EP 1099906A1 EP 00122574 A EP00122574 A EP 00122574A EP 00122574 A EP00122574 A EP 00122574A EP 1099906 A1 EP1099906 A1 EP 1099906A1
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EP
European Patent Office
Prior art keywords
mixing chamber
heater according
air
fuel
inlet
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.)
Granted
Application number
EP00122574A
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German (de)
French (fr)
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EP1099906B1 (en
Inventor
Franz Dipl.-Ing. Schmuker
Albrecht Dipl.-Ing. Schaefer
Marc Rosenland
Stefan Eichengruen
Andreas Mueller
Markus Wacker
Rolf Jakisch
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Robert Bosch GmbH
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Robert Bosch GmbH
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Publication date
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Publication of EP1099906A1 publication Critical patent/EP1099906A1/en
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Publication of EP1099906B1 publication Critical patent/EP1099906B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2210/00—Noise abatement

Definitions

  • the invention relates to a heater with a through Fuel-air mixture fed burner after the Preamble of claim 1.
  • Modern gas heaters for example, use over-stoichiometric premixing surface burners. These burners are characterized by the formation of a carpet of flames consisting of a large number of short, flat flames.
  • the heater according to the invention with the characteristic Features of claim 1 has the advantage that with simple The occurrence of resonance vibrations is minimized or is prevented, so that disturbing noises remain under.
  • the invention enables that with a only damping device in the intake tract the occurrence is effectively combated by disturbing resonance vibrations.
  • Embodiment of an intake tract 10 for one Fan-assisted gas burner shown in more detail Heater having multiple inlet channels 14 has different lengths, with air in
  • a mixing chamber 16 Flows in the direction of the arrow into a mixing chamber 16.
  • the Mixing chamber 16 also carries a fuel feed pipe 18, through which, for example, fuel gas is introduced.
  • the fuel gas is mixed with air, so that there is a fuel-air mixture on the output side, which the arrows 19 is marked.
  • the fuel-air mixture is fed to the gas burner and there burned.
  • FIG. 2 shows a blower unit 21 provided that the fuel-air mixture does not shown gas burner conducts.
  • the blower unit 21 is on the inflow side with an annular flange 22 on which a damping device 12, for example by means of a Bayonet connection 23 is coupled.
  • the ring flange 22 encloses a fan-side chamber 24, which adjoins a Chamber 25 of the damping device 12 connects.
  • the Chambers 24 and 25 together form the mixing chamber 16.
  • the damping device 12 has a pot-like housing 30 with a first
  • the first housing section 33 has the shape of a hollow cylinder section with a bottom 31 remote from the mixing chamber and a bottom 32 near the mixing chamber.
  • the second housing section 34 is delimited by an extension of the bottom 32 near the mixing chamber and is surrounded by a cylindrical housing wall 35.
  • the cylindrical housing wall 35 encloses the chamber 25.
  • Bayonet connection elements 36 are also formed on the housing wall 35, which connect the bayonet connection 23 to the ring flange 22 of the Realize blower unit 21.
  • first inlet channels 41 and second inlet channels 42 are also inlet channels 41 and second inlet channels 42 arranged.
  • the first Inlet channels 41 lead from floor 31 remote from the mixing chamber trained inlet-side openings 44 to in Floor 32 near the mixing chamber is formed on the outlet side Openings 45.
  • a bimetallic element 50 On the inside of the bottom 32 near the mixing chamber is according to Figure 5 also arranged a bimetallic element 50, the for example one of the three further openings 47 Closes or opens depending on the temperature.
  • the bimetallic element 50th is designed such that it increases with increasing temperature Appropriate opening so that with increasing Temperature of the combustion air is the volume fraction of the Combustion air increases and vice versa.
  • the damping device 12 is compact and for example made of plastic using injection molding technology manufactured. But it is equally conceivable that
  • Damping device 12 as a die-cast part, for example To produce aluminum.
  • the Inlet channels 41, 42 are substantially concentric with the Fuel supply pipe 18 are arranged.
  • the different inlet channels 41, 42 or openings 44, 45 and 47 before the mixing chamber 16 different lengths of Air columns formed in the intake tract, on several Different resonance frequencies have a dampening effect.
  • the arrangement of the openings 44, 45 and 47 Air is introduced into the mixing chamber 16, so that a uniform mixing of the air with the fuel takes place.

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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

The heater has a burner fed by a fuel-air mixture, and a mixer chamber (16) in front of the burner. The fuel is mixed with the combustion air in the mixer chamber. The combustion air is conveyed via a suction part (10) into the mixer chamber. The suction duct has at least two inlets for the combustion air, and a further central opening in which is a fuel feeder pipe (18).

Description

Die Erfindung betrifft ein Heizgerät mit einem durch ein Brennstoff-Luftgemisch gespeisten Brenner nach dem Oberbegriff des Anspruchs 1.The invention relates to a heater with a through Fuel-air mixture fed burner after the Preamble of claim 1.

Stand der TechnikState of the art

Die Entwicklung bei Heizgeräten konzentriert sich in den letzten Jahren auf eine Optimierung des
Verbrennungsprozesses, um die gestiegenen Anforderungen bezüglich Wirkungsgrad und Schadstoffemission zu erfüllen. Bei modernen Gas-Heizgeräten werden beispielsweise überstöchiometrisch vormischende Flächenbrenner eingesetzt. Charakteristisch für diese Brenner ist die Ausbildung eines aus einer Vielzahl von kurzen, flachen Flammen bestehenden Flammenteppichs.The development of heaters in recent years has focused on optimizing the
Combustion process to meet the increased requirements regarding efficiency and pollutant emissions. Modern gas heaters, for example, use over-stoichiometric premixing surface burners. These burners are characterized by the formation of a carpet of flames consisting of a large number of short, flat flames.

Insbesondere bei Gebläsebrennern und gebläseunterstützten Brennern treten unterschiedliche Phänomene von schwingenden Flammen auf, die bei bestimmten Betriebsbedingungen und Geräteabmessungen Resonanzschwingungen erzeugen, die zu kräftig schwingenden Luftsäulen und dadurch zu störenden Geräuschen führen können. Um derartige Schwingungen zu dämpfen, werden beispielsweise im Ansaug- und Abgastrakt der Heizgeräte verschiedene Maßnahmen angewandt.Especially with fan burners and fan-assisted Burners experience different phenomena from vibrating Flames that occur under certain operating conditions and Device dimensions generate resonance vibrations that too strong vibrating columns of air and thereby disturbing Can cause noises. To such vibrations too dampen, for example, in the intake and exhaust tract Heaters various measures applied.

Vorteile der ErfindungAdvantages of the invention

Das erfindungsgemäße Heizgerät mit den kennzeichnenden Merkmalen des Anspruchs 1 hat den Vorteil, daß mit einfachen Mitteln das Auftreten von Resonanzschwingungen minimiert oder verhindert wird, so daß störende Geräusche unterbleiben. Die Erfindung ermöglicht es, daß mit einer einzigen Dämpfungseinrichtung im Ansaugtrakt das Auftreten von störenden Resonanzschwingungen wirksam bekämpft wird.The heater according to the invention with the characteristic Features of claim 1 has the advantage that with simple The occurrence of resonance vibrations is minimized or is prevented, so that disturbing noises remain under. The invention enables that with a only damping device in the intake tract the occurrence is effectively combated by disturbing resonance vibrations.

Durch die in den Unteransprüchen aufgeführten Maßnahmen sind vorteilhafte Weiterbildungen und Verbesserungen der Erfindung möglich. Durch die konzentrische Anordnung der Lufteinlaßöffnungen um das Brennstoffzuführrohr wird eine äußerst kompakte Bauweise des Ansaugtraktes ermöglicht, der dadurch nur einen geringen Platzbedarf benötigt. Zur Optimierung der Verbrennung wird außerdem durch ein Bimetallelement der Volumenanteil der Verbrennungsluft geregelt. Eine kompakte Ausführung des Ansaugtraktes wird mittels einer Dämpfungseinrichtung erreicht, die mittels einer Bajonettverbindung an die Mischkammer ankoppelbar ist.By the measures listed in the subclaims advantageous developments and improvements to Invention possible. Due to the concentric arrangement of the Air inlet openings around the fuel supply pipe becomes one extremely compact design of the intake tract enables the therefore requires only a small amount of space. For Combustion optimization is also supported by a Bimetal element is the volume fraction of the combustion air regulated. A compact version of the intake tract is achieved by means of a damping device which a bayonet connection can be coupled to the mixing chamber.

Zeichnungdrawing

Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt und in der nachfolgenden Beschreibung näher erläutert.Embodiments of the invention are in the drawing shown and in the following description explained.

Es zeigen:

Figur 1
eine Prinzipdarstellung eines ersten Ausführungsbeispiels eines Ansaugtraktes eines erfindungsgemäßen Heizgerätes,
Figur 2
eine Teilschnittdarstellung mit einem weiteren Ausführungsbeispiel eines Ansaugtraktes,
Figur 3
eine Draufsicht auf den in Figur 2 dargestellten Ansaugtrakt,
Figur 4
eine Schnittdarstellung nach der Linie IV-IV in Figur 3,
Figur 5
eine Schnittdarstellung nach der Linie V-V in Figur 3 und
Figur 6
eine Seitenansicht des in Figur 3 dargestellten Ansaugtraktes.
Show it:
Figure 1
1 shows a basic illustration of a first exemplary embodiment of an intake tract of a heating device according to the invention,
Figure 2
2 shows a partial sectional view with a further exemplary embodiment of an intake tract,
Figure 3
3 shows a plan view of the intake tract shown in FIG. 2,
Figure 4
3 shows a sectional illustration along the line IV-IV in FIG. 3,
Figure 5
a sectional view along the line VV in Figure 3 and
Figure 6
a side view of the intake tract shown in Figure 3.

AusführungsbeispieleEmbodiments

Die in Figur 1 dargestellte Prinzipskizze zeigt einThe schematic diagram shown in Figure 1 shows a

Ausführungsbeispiels eines Ansaugtraktes 10 für einen nicht näher dargestellten, gebläseunterstützten Gasbrenner eines Heizgerätes, der mehrere Einlasskanäle 14 mit unterschiedlicher Länge aufweist, wobei Luft inEmbodiment of an intake tract 10 for one Fan-assisted gas burner shown in more detail Heater having multiple inlet channels 14 has different lengths, with air in

Pfeilrichtung in eine Mischkammer 16 einströmt. In die Mischkammer 16 führt weiterhin ein Brennstoffzuführrohr 18, über das beispielsweise Brenngas eingeleitet wird. In der Mischkammer 16 wird das Brenngas mit Luft vermischt, so daß ausgangsseitig ein Brennstoff-Luftgemisch vorliegt, das mit den Pfeilen 19 gekennzeichnet ist. Das Brennstoff-Luftgemmisch wird dem Gasbrenner zugeführt und dort verbrannt. Flows in the direction of the arrow into a mixing chamber 16. In the Mixing chamber 16 also carries a fuel feed pipe 18, through which, for example, fuel gas is introduced. In the Mixing chamber 16, the fuel gas is mixed with air, so that there is a fuel-air mixture on the output side, which the arrows 19 is marked. The fuel-air mixture is fed to the gas burner and there burned.

Ein weiteres Ausführungsbeispiel eines Ansaugtraktes 10 zeigt Figur 2. Dabei ist zusätzlich eine Gebläseeinheit 21 vorgesehen, die das Brennstoff-Luftgemisch zu dem nicht dargestellten Gasbrenner leitet. Die Gebläseeinheit 21 ist zuströmseitig mit einem Ringflansch 22 ausgeführt, an dem eine Dämpfungseinrichtung 12 beispielsweise mittels einer Bajonettverbindung 23 angekoppelt ist. Der Ringflansch 22 umschließt eine gebläseseitige Kammer 24, die sich an eine Kammer 25 der Dämpfungseinrichtung 12 anschließt. Die Kammern 24 und 25 bilden zusammen die Mischkammer 16.Another embodiment of an intake tract 10 FIG. 2 shows a blower unit 21 provided that the fuel-air mixture does not shown gas burner conducts. The blower unit 21 is on the inflow side with an annular flange 22 on which a damping device 12, for example by means of a Bayonet connection 23 is coupled. The ring flange 22 encloses a fan-side chamber 24, which adjoins a Chamber 25 of the damping device 12 connects. The Chambers 24 and 25 together form the mixing chamber 16.

Eine detaillierte Darstellung einer möglichen Ausführungsform der Dämpfungseinrichtung 12 geht aus den Figuren 3 bis 6 hervor. Die Dämpfungseinrichtung 12 weist ein topfähnliches Gehäuse 30 mit einem erstenA detailed description of a possible Embodiment of the damping device 12 goes from the Figures 3 to 6 emerge. The damping device 12 has a pot-like housing 30 with a first

Gehäuseabschnitt 33 und einem zweiten Gehäuseabschnitt 34 auf. Der erste Gehäuseabschnitt 33 besitzt die Gestalt eines Hohlzylinderabschnitts mit einem mischerkammerfernen Boden 31 und einem mischkammernahen Boden 32. Der zweite Gehäuseabschnitt 34 wird von einer Verlängerung des mischkammernahen Bodens 32 begrenzt und ist von einer zylindrischen Gehäusewand 35 umgeben. Die zylindrische Gehäusewand 35 umschließt die Kammer 25. An der Gehäusewand 35 sind ferner Bajonettverbindungselemente 36 angeformt, die die Bajonettverbindung 23 am Ringflansch 22 der
Gebläseeinheit 21 realisieren.Housing section 33 and a second housing section 34. The first housing section 33 has the shape of a hollow cylinder section with a bottom 31 remote from the mixing chamber and a bottom 32 near the mixing chamber. The second housing section 34 is delimited by an extension of the bottom 32 near the mixing chamber and is surrounded by a cylindrical housing wall 35. The cylindrical housing wall 35 encloses the chamber 25. Bayonet connection elements 36 are also formed on the housing wall 35, which connect the bayonet connection 23 to the ring flange 22 of the
Realize blower unit 21.

Im Zentrum des mischkammernahen Bodens 31 befindet sich eine zentrale Öffnung 37 mit beispielsweise drei in die Öffnung ragenden Stegen 38, zwischen denen das Brennstoffzuführrohr 18 geklemmt ist. Dadurch bildet sich zwischen der Außenwand des Brennstoffzuführrohres 18 und dem äußeren Durchmesser der Öffnung 37 zwischen den Stegen 38 ein nicht näher dargestellter Spalt aus, durch den zusätzlich Luft in die Kammer 25 einströmen kann. In the center of the bottom 31 near the mixing chamber there is one central opening 37 with, for example, three in the opening projecting webs 38, between which the fuel supply pipe 18 is clamped. This forms between the outer wall of the fuel supply pipe 18 and the outer diameter the opening 37 between the webs 38 a not closer shown gap from which additional air into the Chamber 25 can flow.

In dem Gehäuse 30 sind ferner erste Einlasskanäle 41 und zweite Einlasskanälen 42 angeordnet. Die ersten Einlasskanäle 41 führen von am mischkammerfernen Boden 31 ausgebildeten einlaßseitigen Öffnungen 44 zu im mischkammernahen Boden 32 ausgebildeten auslaßseitigen Öffnungen 45. Beim vorliegenden Ausführungsbeispiel existieren fünf Einlasskanäle 41.In the housing 30 are also first inlet channels 41 and second inlet channels 42 arranged. The first Inlet channels 41 lead from floor 31 remote from the mixing chamber trained inlet-side openings 44 to in Floor 32 near the mixing chamber is formed on the outlet side Openings 45. In the present embodiment there are five inlet channels 41.

Außerhalb des ersten Gehäuseabschnitts 33 sind ferner im mischkammernahen Boden 32 beispielsweise drei weitere Öffnungen 47 angeordnet, die die zweiten Einlasskanäle 42 bilden. Die weiteren Öffnungen 47 führen somit unmittelbar in die angrenzende Kammer 25.Outside of the first housing section 33 are also in bottom 32 near the mixing chamber, for example three more Openings 47 arranged that the second inlet channels 42nd form. The further openings 47 thus lead directly into the adjacent chamber 25.

An der Innenseite des mischkammernahen Bodens 32 ist gemäß Figur 5 ferner ein Bimetallelement 50 angeordnet, das beispielsweise eine der drei weiteren Öffnungen 47 temperaturabhängig schließt oder öffnet. Durch diese Anordnung wird eine temperaturabhängige Regelung der Verbrennungsluft geschaffen, wobei das Bimetallelement 50 derart ausgebildet ist, daß es mit steigender Temperatur die entsprechende Öffnung freigibt, so daß mit steigender Temperatur der Verbrennungsluft der Volumenanteil der Verbrennungsluft zunimmt und umgekehrt.On the inside of the bottom 32 near the mixing chamber is according to Figure 5 also arranged a bimetallic element 50, the for example one of the three further openings 47 Closes or opens depending on the temperature. Through this Arrangement is a temperature-dependent regulation of the Combustion air created, the bimetallic element 50th is designed such that it increases with increasing temperature Appropriate opening so that with increasing Temperature of the combustion air is the volume fraction of the Combustion air increases and vice versa.

Die Dämpfungseinrichtung 12 ist kompakt ausgebildet und beispielsweise aus Kunststoff in Spritzgußtechnik hergestellt. Es ist aber genauso denkbar, dieThe damping device 12 is compact and for example made of plastic using injection molding technology manufactured. But it is equally conceivable that

Dämpfungseinrichtung 12 als Druckgußteil beispielsweise aus Aluminium herzustellen.Damping device 12 as a die-cast part, for example To produce aluminum.

Durch die verschiedenen Einlasskanälen 41 und 42 wird eine Auffächerung des Ansaugquerschnitts erzeugt, wobei die Einlasskanäle 41, 42 im wesentlichen konzentrisch um das Brennstoffzuführrohr 18 angeordnet sind. Durch die verschiedenen Einlasskanäle 41, 42 bzw. Öffnungen 44, 45 und 47 werden vor der Mischkammer 16 unterschiedliche Längen von Luftsäulen im Ansaugtrakt ausgebildet, die auf mehrere verschiedene Resonanz-Frequenzen dämpfend wirken. Außerdem wird durch die Anordnung der Öffnungen 44, 45 und 47 die Luft verteilt in die Mischkammer 16 eingeleitet, so daß eine gleichmäßige Vermischung der Luft mit dem Brennstoff stattfindet.Through the different inlet channels 41 and 42 one Fan-out of the intake cross-section generated, the Inlet channels 41, 42 are substantially concentric with the Fuel supply pipe 18 are arranged. Through the different inlet channels 41, 42 or openings 44, 45 and 47 before the mixing chamber 16 different lengths of Air columns formed in the intake tract, on several Different resonance frequencies have a dampening effect. Moreover is the arrangement of the openings 44, 45 and 47 Air is introduced into the mixing chamber 16, so that a uniform mixing of the air with the fuel takes place.

Claims (9)

Heizgerät mit einem durch ein Brennstoff-Luftgemisch gespeisten Brenner und einer dem Brenner vorgeschalteten Mischkammer, in der der Brennstoff mit der Verbrennungsluft vermischt wird, wobei die Verbrennungsluft über einen Ansaugtrakt in die Mischkammer geleitet wird, dadurch gekennzeichnet, daß der Ansaugtrakt (10) mindestens zwei Einlassöffnungen (44, 47) für die Verbrennungsluft aufweist, derart, daß sich in den Einlassöffnungen (44, 47) vor der Mischkammer (16) Luftsäulen mit unterschiedlicher Länge ausbildenHeater with a fuel-air mixture fed burner and one upstream of the burner Mixing chamber in which the fuel with the combustion air is mixed, the combustion air via a Intake tract is directed into the mixing chamber, thereby characterized in that the intake tract (10) at least two Has inlet openings (44, 47) for the combustion air, such that in the inlet openings (44, 47) in front of Mixing chamber (16) air columns with different lengths form Heizgerät nach Anspruch 1, dadurch gekennzeichnet, daß den Einlassöffnungen (44, 47) Einlasskanäle (41, 42) mit unterschiedlichen Längen zugeordnet sind, in denen sich die Luftsäulen ausbilden.Heater according to claim 1, characterized in that the inlet openings (44, 47) with inlet channels (41, 42) are assigned different lengths in which the Form air columns. Heizgerät nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Ansaugtrakt (10) eine weitere im wesentlichen zentrisch angeordnete Öffnung (37) aufweist, in der ein Brennstoffzuführrohr (18) angeordnet ist, über das der Brennstoff in die Mischkammer (16) eingeleitet wird.Heater according to claim 1 or 2, characterized in that that the intake tract (10) is essentially another has a centrally arranged opening (37) in which a Fuel feed pipe (18) is arranged over which the Fuel is introduced into the mixing chamber (16). Heizgerät nach Anspruch 3, dadurch gekennzeichnet, daß um das Brennstoffzuführrohr (18) gleichmäßig verteilte
Kreissegmentschlitze ausgebildet sind, über die
Verbrennungsluft zusätzlich in die Mischkammer (16) einströmt. Heater according to claim 3, characterized in that evenly distributed around the fuel feed pipe (18)
Circular segment slots are formed over the
Combustion air also flows into the mixing chamber (16). Heizgerät nach Anspruch 3, dadurch gekennzeichnet, daß mehrere Einlassöffnungen (44, 47) im wesentlichen konzentrisch um das Brennstoffzuführrohr (18) angeordnet sind.Heater according to claim 3, characterized in that several inlet openings (44, 47) essentially arranged concentrically around the fuel feed pipe (18) are. Heizgerät nach Anspruch 1, dadurch gekennzeichnet, daß der Ansaugtrakt (10) eine Dämpfungseinrichtung 12 mit einem Gehäuse (30) mit einem ersten Gehäuseabschnitt (33) und einem zweiten Gehäuseabschnitt (34) aufweist, wobei in dem ersten Gehäuseabschnitt (33) der erste Einlasskanal (41) mit der längeren Luftsäule und in dem zweiten Gehäuseabschnitt (34) der zweite Einlasskanal (42) mit der kürzeren
Luftsäulen ausgebildet ist.A heater according to claim 1, characterized in that the intake tract (10) has a damping device 12 with a housing (30) with a first housing section (33) and a second housing section (34), the first inlet duct in the first housing section (33) (41) with the longer air column and in the second housing section (34) the second inlet duct (42) with the shorter one
Air columns is formed. Heizgerät nach Anspruch 6, dadurch gekennzeichnet, daß mehrere erste Einlasskanäle (41) für die langen Luftsäulen vorgesehen sind, die innerhalb des ersten Gehäuseabschnitts (33) von einem mischkammerfernen Boden (31) zu einem mischkammernahen Boden (32) führen.Heater according to claim 6, characterized in that several first inlet channels (41) for the long air columns are provided, which are within the first housing section (33) from a mixing chamber distant bottom (31) to one Guide the floor (32) near the mixing chamber. Heizgerät nach Anspruch 6, dadurch gekennzeichnet, daß mehrere zweite Einlasskanäle (42) für die kurzen Luftsäulen vorgesehen sind, die von im mischkammernahen Boden (33) angeordneten weiteren Einlassöffnungen (47) gebildet sind.Heater according to claim 6, characterized in that several second inlet ducts (42) for the short air columns are provided which are in the near the mixing chamber bottom (33) arranged further inlet openings (47) are formed. Heizgerät nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Dämpfungseinrichtung 12 mittels Bajonettverbindungselementen (36) an eine dem Brenner vorgeschaltete Gebläseeinheit (21) angekoppelt ist.Heater according to one of the preceding claims, characterized in that the damping device 12 by means of bayonet connecting elements (36) to one of the Burner upstream fan unit (21) is coupled.
EP00122574A 1999-11-11 2000-10-17 Heating appliance with premix burner Expired - Lifetime EP1099906B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19954287 1999-11-11
DE19954287A DE19954287C2 (en) 1999-11-11 1999-11-11 Heater with a burner powered by a fuel-air mixture

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Publication Number Publication Date
EP1099906A1 true EP1099906A1 (en) 2001-05-16
EP1099906B1 EP1099906B1 (en) 2004-02-11

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EP00122574A Expired - Lifetime EP1099906B1 (en) 1999-11-11 2000-10-17 Heating appliance with premix burner

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EP (1) EP1099906B1 (en)
CN (1) CN1135320C (en)
DE (2) DE19954287C2 (en)
ES (1) ES2215540T3 (en)

Cited By (4)

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Publication number Priority date Publication date Assignee Title
WO2002077526A1 (en) * 2001-03-23 2002-10-03 Sit La Precisa S.P.A. A system for connecting an air-gas mixing device to a fan, particularly for gas boilers and similar apparatus
EP1486727A1 (en) * 2003-06-11 2004-12-15 Robert Bosch Gmbh Gas mixing apparatus for a gas burner
WO2009059703A1 (en) * 2007-11-05 2009-05-14 Honeywell Technologies Sarl Device for providing a gas/combustion air mixture for a gas burner
WO2012069534A1 (en) * 2010-11-26 2012-05-31 Bekaert Combustion Technology B.V. Burner with secondary axial flow elements

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Publication number Priority date Publication date Assignee Title
DE102010010791A1 (en) 2010-03-09 2011-09-15 Honeywell Technologies Sarl Mixing device for a gas burner
CN102944015B (en) * 2012-10-29 2015-09-09 中国科学技术大学 A kind of injection preheating type flameless burner

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CN103228989A (en) * 2010-11-26 2013-07-31 贝卡尔特燃烧技术股份有限公司 Burner with secondary axial flow elements

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CN1298073A (en) 2001-06-06
CN1135320C (en) 2004-01-21
DE19954287A1 (en) 2001-06-21
EP1099906B1 (en) 2004-02-11
DE19954287C2 (en) 2001-10-11
DE50005254D1 (en) 2004-03-18
ES2215540T3 (en) 2004-10-16

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