EP1562006A1 - Heating device - Google Patents

Heating device Download PDF

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Publication number
EP1562006A1
EP1562006A1 EP04029792A EP04029792A EP1562006A1 EP 1562006 A1 EP1562006 A1 EP 1562006A1 EP 04029792 A EP04029792 A EP 04029792A EP 04029792 A EP04029792 A EP 04029792A EP 1562006 A1 EP1562006 A1 EP 1562006A1
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EP
European Patent Office
Prior art keywords
cover elements
heat exchanger
heater according
burner
heater
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
EP04029792A
Other languages
German (de)
French (fr)
Other versions
EP1562006B1 (en
Inventor
Wolfgang Schleiter
Uwe Engel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Viessmann Werke GmbH and Co KG
Original Assignee
Viessmann Werke GmbH and Co KG
Priority date (The priority date 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 date listed.)
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Publication date
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Priority to SI200430484T priority Critical patent/SI1562006T1/en
Priority to PL04029792T priority patent/PL1562006T3/en
Publication of EP1562006A1 publication Critical patent/EP1562006A1/en
Application granted granted Critical
Publication of EP1562006B1 publication Critical patent/EP1562006B1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/02—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled
    • F28D7/024—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled the conduits of only one medium being helically coiled tubes, the coils having a cylindrical configuration
    • 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
    • F24H1/43—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water tube or tubes helically or spirally coiled
    • 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
    • F24H9/00—Details
    • F24H9/02—Casings; Cover lids; Ornamental panels
    • 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
    • F24H9/00—Details
    • F24H9/14—Arrangements for connecting different sections, e.g. in water heaters 
    • 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
    • F24H9/00—Details
    • F24H9/14—Arrangements for connecting different sections, e.g. in water heaters 
    • F24H9/146—Connecting elements of a heat exchanger

Definitions

  • the invention relates to a heater according to the preamble of Patent claim 1.
  • a heater of the type mentioned is, for example known from DE 100 26 549 C1 or DE 101 14 490 C1.
  • This heater consists of a helically coiled Heat exchangers, known in the art as Inox Radial Heating Surfaces.
  • the heater has a cylindrical combustion chamber, the axial of a front and a rear cover element (so-called front and back plate) and radially from the heat exchanger is limited.
  • a burner for liquid or gaseous fuels (Oil or gas) arranged on one of the two boards.
  • a housing that includes from a shell part, so-called exhaust jacket, and the two Boards is formed, the heat exchanger to form a Exhaust duct.
  • This heater has in terms of its function and reliability Proven in itself and also on the Market established. In particular, consist of manufacturing technology but the following disadvantages:
  • the boards are relatively expensive, since at least for the each inner due to corrosion a high quality stainless steel must be used. In addition, the material waste quite high, since the approximately round boards are made Be punched square pre-material. At the two burner side Cover elements is still the blend for the Burner opening added. Finally, when welding to Clamping the burner side double board quite a big one Clamping area required. The outwardly protruding clamping areas cause a pretty big distance between Spiral and outer exhaust jacket, the total diameter of the Heater increases, which contradicts the desired compactness.
  • the invention is based on the object, the disadvantages mentioned the heater of the type mentioned above as possible easy way to eliminate, especially under the Aspect, thereby facilitating the installation and the heater even more compact and cost-effective to train.
  • the heat exchanger at its two ends axially oriented aligned connecting pieces and that on the lid elements to the Connecting piece formed adapted and sealed by these accessed openings are provided, wherein the cover elements preferably axially inserted into the shell part and positively formed connectable sealed with this are.
  • This intermediate assembly then sets the complete hydraulic pressure hull
  • the Boards preferably made of aluminum die-cast are deferred, and here too the board surface is preferably formed adapted to the spiral pitch, to prevent an exhaust gas flow between the coil and the circuit board.
  • a sealing element for example, O-ring
  • Another sealing element is Furthermore, preferably between the board and the outer exhaust jacket (shell part) provided.
  • the jacket part consists of an approximately cylindrical shell whose End faces after insertion of the heat exchanger and the Blanks are preferably crimped inward so that these components are fixed.
  • At the exhaust jacket is preferably an upper opening for the exhaust gas outlet and a lower one for provided the condensate drain.
  • On the front panel are above it.
  • the breakpoints for the burner as well the interface to the burner seal is integrated.
  • Heater shown (see also the case anyway similar DE 101 14 490 C1).
  • This heater includes - like also the invention - a helically coiled,
  • the cooling water side an approximately rectangular flow cross-section and in which between the resulting coils of the heat exchanger 1 exhaust gas flow column 25 are provided.
  • a cylindrical combustion chamber 2 provided axially from a front 3 and a rear Lid member 4 and radially bounded by the heat exchanger 1, wherein a burner 5 for liquid or gaseous fuels on one of the two cover elements 3, 4 (here cover element 3) is arranged.
  • both the inventive Heater see Figures 1 to 6 and 8 and 9) as well the device according to Figure 7, a housing 6, which consists of a jacket part 7 and the cover elements 3, 4 is formed and the Heat exchanger 1 enclosing an exhaust gas passage 8 encloses.
  • the heat exchanger 1 so first produced as a helix.
  • Both ends 9, 10 are preferably approximately circular holes introduced and the open, preferably rectangular flow area is, as shown in Figure 6, with closed a lid member.
  • the circular holes are the mentioned, preferably tubular and how the heat exchanger 1 is also formed of stainless steel Connecting pieces 11, 12 inserted and welded.
  • Heat exchanger 1 is then in a next assembly step forming the above-mentioned exhaust passage 8 in the shell part 7 inserted.
  • Heat exchanger. 1 are also front and back the above already mentioned Cover elements 3, 4 miteingeschoben with in the shell part 7, wherein both the shell part 7 and the cover elements 3, 4 preferably have a circular cross-section.
  • the preferably circular openings 13, 14 on the cover elements 3, 4 further have a diameter D O , which is slightly larger than the outer diameter (D A ) of the tubular connecting piece (11, 12) is formed, moreover, preferably between the Connection piece 11, 12 and the cover elements 3, 4 each have a seal 15, preferably an O-ring seal, is provided.
  • At least one of the two (preferably both) cover elements 3, 4 produced by casting or in particular of die-cast aluminum to build.
  • This method of production enables above all in a simple way, the further, preferred proviso, the Cover elements 3, 4 on the heat exchanger side each with an on to provide the spiral pitch adapted surface shape, so that does not unintentionally exhaust through the transition area between Heat exchanger 1 and cover element 3, 4 flows.
  • the cover elements 3, 4, as shown in Figure 8 and 9 shown, over zuganker 26 firm, but solvable with each other are connected, preferably at least three, preferably four tie rods 26 are provided, the outside of the housing 6, the shell part 7 are arranged enclosing.
  • an exhaust pipe preferably also out Plastic can exist.
  • the exhaust gas itself is in the exhaust duct 8 already cooled to below 100 ° C and thus for a plastic sheath not too hot anymore.
  • the jacket part 7 also has the heater according to the invention at the geodesic deepest Make a condensate drain 18. Furthermore, on the burner side Cover element 3 for the burner 5 is approximately the inner diameter the opening 1 of the heat exchanger 1 is provided, in the on a correspondingly large designed burner plate 20 mounted burner 5 can be used. Finally, according to the invention on the burner facing away cover element optionally fastening elements 22 for the heater and / or a fastening element 23 for a combustion chamber insulation 24 (preferably according to DE 196 27 961 C2) arranged.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical & Material Sciences (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
  • Resistance Heating (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Details Of Fluid Heaters (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

Heating device comprises a helical heat exchanger (1), a cylindrical combustion chamber (2) axially defined by a front and a rear cover element (3, 4) and radially defined by the heat exchanger, a burner (5) arranged on one of the two cover elements, and a housing (6) consisting of a jacket part (7) and the cover elements and surrounding the heat exchanger with the formation of an exhaust gas channel (8). The heat exchanger has axially oriented connecting sleeves (11, 12) at its two ends (9, 10). Openings (13, 14) provided in the cover elements receive the connecting sleeves. Preferred Features: The jacket part is made of plastic and at least one of the two cover elements is made preferably of diecast aluminum.

Description

Die Erfindung betrifft ein Heizgerät nach dem Oberbegriff des Patentanspruchs 1.The invention relates to a heater according to the preamble of Patent claim 1.

Ein Heizgerät der eingangs genannten Art ist beispielsweise aus der DE 100 26 549 C1 oder der DE 101 14 490 C1 bekannt. Dieses Heizgerät besteht aus einem schraubenförmig gewendelten Wärmetauscher, in Fachkreisen Inox-Radial-Heizfläche genannt. Ferner weist das Heizgerät eine zylindrische Brennkammer auf, die axial von einem vorderen und einem hinteren Deckelelement (sogenannte Front- und Rückplatine) und radial vom Wärmetauscher begrenzt ist. An einem der beiden Platinen ist darüber hinaus ein Brenner für flüssige oder gasförmige Brennstoffe (Öl oder Gas) angeordnet. Schließlich umfasst ein Gehäuse, das aus einem Mantelteil, sogenannter Abgasmantel, und den beiden Platinen gebildet ist, den Wärmetauscher unter Ausbildung eines Abgaskanals.A heater of the type mentioned is, for example known from DE 100 26 549 C1 or DE 101 14 490 C1. This heater consists of a helically coiled Heat exchangers, known in the art as Inox Radial Heating Surfaces. Furthermore, the heater has a cylindrical combustion chamber, the axial of a front and a rear cover element (so-called front and back plate) and radially from the heat exchanger is limited. On one of the two boards is above In addition, a burner for liquid or gaseous fuels (Oil or gas) arranged. Finally, a housing that includes from a shell part, so-called exhaust jacket, and the two Boards is formed, the heat exchanger to form a Exhaust duct.

Die Einbindung des Wärmetauschers erfolgt bei diesem Heizgerät durch Verschweißen mit den stirnseitigen Platinen, in die zum Ausgleich der Steigung der Wendel eine entsprechende Vertiefung eingepresst wird. Der offene Strömungsquerschitt des Wärmetauschers endet somit jeweils an den Platinen. Um einen geschlossenen Kreislauf für das den Wärmetauscher durchströmende Heizwasser zu bilden, sind beidseitig (front- und rückseitig) zwei weitere Platinen erforderlich, an die dann jeweils ein Anschlußstutzen zur Verbindung mit dem hausseitigen Heizkreis angeschweißt ist. Weitere Einzelheiten sind weiter unten anhand einer zeichnerischen Darstellung dieses Standes der Technik erläutert.The integration of the heat exchanger takes place in this heater by welding with the frontal boards, in the Compensate for the slope of the helix a corresponding recess is pressed. The open flow cross section of the heat exchanger thus ends each on the boards. To a closed Circulation for the heat exchanger flowing through Heating water are on both sides (front and back) two more boards required, then one each Connecting piece for connection to the house-side heating circuit is welded. Further details are below a graphic representation of this prior art explained.

Dieses Heizgerät hat sich hinsichtlich seiner Funktion und Betriebssicherheit an sich bestens bewährt und auch auf dem Markt etabliert. Insbesondere fertigungstechnisch bestehen aber folgende Nachteile:This heater has in terms of its function and reliability Proven in itself and also on the Market established. In particular, consist of manufacturing technology but the following disadvantages:

Die Platinen sind relativ kostenintensiv, da zumindest für die jeweils innere aus Korrosionsgründen ein hochwertiger Edelstahl verwendet werden muss. Darüber hinaus ist der Materialverschnitt recht hoch, da die angenähert runden Platinen aus eckigem vormaterial ausgestanzt werden. Bei den beiden brennerseitigen Deckelelementen kommt noch der Verschnitt für die Brenneröffnung hinzu. Schließlich ist beim Verschweißen zum Einspannen der brennerseitigen Doppelplatine ein recht großer Einspannbereich erforderlich. Die nach außen ragenden Spannbereiche verursachen dabei eine recht große Distanz zwischen Wendel und äußerem Abgasmantel, die den Gesamtdurchmesser des Heizgerätes vergrößert, was der angestrebten Kompaktheit widerspricht.The boards are relatively expensive, since at least for the each inner due to corrosion a high quality stainless steel must be used. In addition, the material waste quite high, since the approximately round boards are made Be punched square pre-material. At the two burner side Cover elements is still the blend for the Burner opening added. Finally, when welding to Clamping the burner side double board quite a big one Clamping area required. The outwardly protruding clamping areas cause a pretty big distance between Spiral and outer exhaust jacket, the total diameter of the Heater increases, which contradicts the desired compactness.

Der Erfindung liegt die Aufgabe zugrunde, die genannten Nachteile des Heizgerätes der eingangs genannten Art auf möglichst einfache Weise zu beseitigen, und zwar insbesondere unter dem Aspekt, dabei die Montage zu erleichtern und das Heizgerät noch kompakter und kostengünstiger auszubilden.The invention is based on the object, the disadvantages mentioned the heater of the type mentioned above as possible easy way to eliminate, especially under the Aspect, thereby facilitating the installation and the heater even more compact and cost-effective to train.

Diese Aufgabe ist mit einem Heizgerät der eingangs genannten Art durch die im Kennzeichen des Anspruchs 1 aufgeführten Merkmale gelöst.This object is achieved with a heater of the aforementioned Type by the listed in the characterizing part of claim 1 Characteristics solved.

Nach der Erfindung ist also vorgesehen, dass der Wärmetauscher an seinen beiden Enden axial orientiert ausgerichtete Anschlußstutzen aufweist und dass an den Deckelelementen an die Anschlußstutzen formangepaßt ausgebildete und von diesen abgedichtet durchgriffene Öffnungen vorgesehen sind, wobei die Deckelelemente vorzugsweise axial in das Mantelteil einschiebund formschlüssig mit diesem abgedichtet verbindbar ausgebildet sind.According to the invention, it is thus provided that the heat exchanger at its two ends axially oriented aligned connecting pieces and that on the lid elements to the Connecting piece formed adapted and sealed by these accessed openings are provided, wherein the cover elements preferably axially inserted into the shell part and positively formed connectable sealed with this are.

Mit anderen Worten wird also vorgeschlagen, an den Wendelenden des Wärmetauschers jeweils stirnseitig einen Anschlußstutzen anzubringen (vorzugsweise anzuschweißen). Diese zwischenbaugruppe stellt dann den kompletten hydraulischen Druckkörper dar. Auf die axialen Stirnseiten des Wärmetauschers werden die Platinen, die vorzugsweise aus Aluminumdruckguss hergestellt sind, aufgeschoben, wobei auch hier die Platinenoberfläche vorzugsweise an die Wendelsteigung angepasst ausgebildet ist, um einen Abgasstrom zwischen Wendel und Platine zu verhindern. Vorzugsweise über ein Dichtelement (zum Beispiel O-Ring) erfolgt die abgasseitige Abdichtung zwischen den Anschlussstutzen und den Deckelelementen. Ein weiteres Dichtelement ist ferner vorzugsweise jeweils zwischen der Platine und dem äußeren Abgasmantel (Mantelteil) vorgesehen. Das Mantelteil besteht aus einem annähernd zylindrischen Mantel, dessen Stirnseiten nach dem Einsetzen des Wärmetauschers und der Platinen vorzugsweise nach innen gebördelt werden, so dass diese Bauteile fixiert sind. Am Abgasmantel ist vorzugsweise eine obere Öffnung für den Abgasaustritt und eine untere für den Kondensatablauf vorgesehen. An der Frontplatine sind darüber hinaus vorzugsweise die Haltepunkte für den Brenner sowie die Schnittstelle zur Brennerdichtung intergriert. Schließlich sind an der Rückplatine die Aufhängepunkte für das gesamte Heizgerät sowie ein sogenannter Befestigungsdom für eine Brennraumdämmung angeordnet.In other words, it is proposed at the helix ends the heat exchanger each end face a connection piece to attach (preferably to weld). This intermediate assembly then sets the complete hydraulic pressure hull On the axial end faces of the heat exchanger are the Boards, preferably made of aluminum die-cast are deferred, and here too the board surface is preferably formed adapted to the spiral pitch, to prevent an exhaust gas flow between the coil and the circuit board. Preferably via a sealing element (for example, O-ring) takes place the exhaust gas side seal between the connecting pieces and the lid elements. Another sealing element is Furthermore, preferably between the board and the outer exhaust jacket (shell part) provided. The jacket part consists of an approximately cylindrical shell whose End faces after insertion of the heat exchanger and the Blanks are preferably crimped inward so that these components are fixed. At the exhaust jacket is preferably an upper opening for the exhaust gas outlet and a lower one for provided the condensate drain. On the front panel are above it In addition, preferably the breakpoints for the burner as well the interface to the burner seal is integrated. After all On the backplane are the suspension points for the whole Heater and a so-called Befestigungsdom for a Combustion chamber insulation arranged.

Andere vorteilhafte Weiterbildungen ergeben sich aus den abhängigen Ansprüchen.Other advantageous developments emerge from the dependent Claims.

Das erfindungsgemäße Heizgerät einschließlich seiner vorteilhaften Weiterbildungen gemäß der abhängigen Ansprüche wird nachfolgend anhand der zeichnerischen Darstellung verschiedener Ausführungsbeispiele näher erläutert.The heater according to the invention including its advantageous Further developments according to the dependent claims below with reference to the drawings of various Embodiments explained in more detail.

Es zeigt

Figur 1
in perspektivischer Ansicht das erfindungsgemäße Heizgerät bei demontiertem Brenner;
Figur 2
im Schnitt das Heizgerätes gemäß Figur 1 mit beiden Deckelelementen und montiertem Brenner;
Figur 3
in Vorderansicht das brennerseitige Deckelelement;
Figur 4
in Vorderansicht das brennerabgewandte Deckelelement;
Figur 5, 6
in perspektivischer Ansicht der Wärmetauscher ohne und mit Anschlußstutzen;
Figur 7
ein Heizgerät gemäß dem bekannten Stand der Technik;
Figur 8
in Vorderansicht das erfindungsgemäß Heizgerät mit vier zugankern; und
Figur 9
in perspektivischer Ansicht das Heizgerät gemäß Figur 8.
It shows
FIG. 1
in a perspective view of the heater according to the invention with disassembled burner;
FIG. 2
in section the heater according to Figure 1 with two cover elements and mounted burner;
FIG. 3
in front view, the burner-side cover element;
FIG. 4
in front view, the burner facing away cover element;
FIG. 5, 6
in a perspective view of the heat exchanger without and with connection piece;
FIG. 7
a heater according to the known art;
FIG. 8
in front view the heater according to the invention with four tie rods; and
FIG. 9
in a perspective view of the heater of Figure 8.

In Figur 7 ist zunächst ein nach dem Stand der Technik bekanntes Heizgerät dargestellt (siehe hierzu auch die jedenfalls ähnliche DE 101 14 490 C1). Dieses Heizgerät umfasst - wie auch das erfindungsgemäße - einen schraubenförmig gewendelten, aus Korrosionsgründen aus Edelstahl gebildeten Wärmetauscher 1, der kühlwasserseitig einen etwa rechteckigen Durchströmungsquerschnitt aufweist und bei dem zwischen den sich ergebenden Wendeln des Wärmetauschers 1 Abgasströmungsspalte 25 vorgesehen sind. Ferner ist eine zylindrische Brennkammer 2 vorgesehen, die axial von einem vorderen 3 und einem hinteren Deckelelement 4 und radial vom Wärmetauscher 1 begrenzt ist, wobei ein Brenner 5 für flüssige oder gasförmige Brennstoffe an einem der beiden Deckelelemente 3, 4 (hier Deckelelement 3) angeordnet ist. Darüber hinaus weist sowohl das erfindungsgemäße Heizgerät (siehe Figuren 1 bis 6 und 8 und 9) als auch das Gerät gemäß Figur 7 ein Gehäuse 6 auf, das aus einem Mantelteil 7 und den Deckelelementen 3, 4 gebildet ist und den Wärmetauscher 1 unter Ausbildung eines Abgaskanals 8 umschließt.In FIG. 7, one known from the prior art is initially known Heater shown (see also the case anyway similar DE 101 14 490 C1). This heater includes - like also the invention - a helically coiled, For reasons of corrosion made of stainless steel heat exchanger 1, the cooling water side an approximately rectangular flow cross-section and in which between the resulting coils of the heat exchanger 1 exhaust gas flow column 25 are provided. Further, a cylindrical combustion chamber 2 provided axially from a front 3 and a rear Lid member 4 and radially bounded by the heat exchanger 1, wherein a burner 5 for liquid or gaseous fuels on one of the two cover elements 3, 4 (here cover element 3) is arranged. In addition, both the inventive Heater (see Figures 1 to 6 and 8 and 9) as well the device according to Figure 7, a housing 6, which consists of a jacket part 7 and the cover elements 3, 4 is formed and the Heat exchanger 1 enclosing an exhaust gas passage 8 encloses.

Wesentlich für das erfindungsgemäße Heizgerät ist nun, dass der Wärmetauscher 1 an seinen beiden Enden 9, 10 axial orientiert ausgerichtete Anschlußstutzen 11, 12 aufweist und dass an den Deckelelementen 3, 4 an die Anschlußstutzen 11, 12 formangepaßt ausgebildete und von diesen abgedichtet durchgriffene Öffnungen 13, 14 vorgesehen sind, wobei die Deckelelemente 3, 4 vorzugsweise axial in das Mantelteil 7 einschieb- und formschlüssig mit diesem abgedichtet verbindbar ausgebildet sind.Essential for the heater according to the invention is now that the heat exchanger 1 at its two ends 9, 10 axially oriented aligned connecting pieces 11, 12 and that on the cover elements 3, 4 to the connection piece 11, 12th form-adapted trained and sealed by these Openings 13, 14 are provided, wherein the cover elements 3, 4 preferably axially in the shell part 7 einschieb- and positively connected with this sealed are formed.

Wie insbesondere aus Figur 5 und 6 ersichtlich, wird der Wärmetauscher 1 also zunächst als Wendel hergestellt. An seinen beiden Enden 9, 10 werden vorzugsweise etwa kreisrunde Löcher eingebracht und der offene, vorzugsweise rechteckige Durchströmungsquerschnitt wird, wie in Figur 6 dargestellt, mit einem Deckelelement verschlossen. In die kreisrunden Löcher werden die erwähnten, vorzugsweise rohrförmig ausgebildeten und wie der Wärmetauscher 1 ebenfalls aus Edelstahl gebildeten Anschlußstutzen 11, 12 eingesetzt und angeschweißt.As can be seen in particular from FIGS. 5 and 6, the heat exchanger 1 so first produced as a helix. At his Both ends 9, 10 are preferably approximately circular holes introduced and the open, preferably rectangular flow area is, as shown in Figure 6, with closed a lid member. In the circular holes are the mentioned, preferably tubular and how the heat exchanger 1 is also formed of stainless steel Connecting pieces 11, 12 inserted and welded.

Dieser als vollständiger hydraulischer Druckkörper ausgebildete Wärmetauscher 1 wird dann in einem nächsten Montageschritt unter Ausbildung des oben erwähnten Abgaskanals 8 in den Mantelteil 7 eingeschoben. Zur Fixierung des Wärmetauschers 1 werden ferner front- und rückseitig die oben bereits erwähnten Deckelelemente 3, 4 mit in das Mantelteil 7 miteingeschoben, wobei sowohl das Mantelteil 7 als auch die Deckelelemente 3, 4 vorzugsweise einen kreisförmigen Querschnitt aufweisen.This trained as a complete hydraulic pressure body Heat exchanger 1 is then in a next assembly step forming the above-mentioned exhaust passage 8 in the shell part 7 inserted. For fixing the heat exchanger. 1 are also front and back the above already mentioned Cover elements 3, 4 miteingeschoben with in the shell part 7, wherein both the shell part 7 and the cover elements 3, 4 preferably have a circular cross-section.

Um einen gasdichten Abschluss der Deckelelemente 3, 4 zum Mantelteil 7 zu gewährleisten, ist vorteilhaft vorgesehen, dass zwischen diesen beiden Bauteilen eine Dichtung 16 - für einen besonders guten Toleranzausgleich vorzugsweise wie angedeutet dargestellt eine Lippen- bzw. Doppellippen-Dichtung - angeordnet ist. Darüber hinaus weist das Mantelteil 7 bei metallischer Ausführung beidseitig umlaufende Kanten 21 auf, die - wie aus den Figuren 1, 3 und 4 ersichtlich, nach Montage der Deckelelemente 3, 4 umgebördelt werden.To a gas-tight completion of the cover elements 3, 4 to the shell part 7, it is advantageously provided that between these two components a seal 16 - for a particularly good tolerance compensation preferably as indicated illustrated a lip or double lip seal - arranged is. In addition, the shell part 7 at metallic Execution on both sides circumferential edges 21, which - As can be seen from Figures 1, 3 and 4, after mounting the Cover elements 3, 4 are crimped.

Die vorzugsweise kreisförmig ausgebildeten Öffnungen 13, 14 an den Deckelelementen 3, 4 weisen ferner einen Durchmesser DO auf, der geringfügig größer als der Aussendurchmesser (DA) der rohrförmig ausgebildeten Anschlußstutzen (11, 12) ausgebildet ist, wobei darüber hinaus vorzugsweise zwischen den Anschlußstutzen 11, 12 und den Deckelelementen 3, 4 jeweils eine Dichtung 15, vorzugsweise eine O-Ring-Dichtung, vorgesehen ist.The preferably circular openings 13, 14 on the cover elements 3, 4 further have a diameter D O , which is slightly larger than the outer diameter (D A ) of the tubular connecting piece (11, 12) is formed, moreover, preferably between the Connection piece 11, 12 and the cover elements 3, 4 each have a seal 15, preferably an O-ring seal, is provided.

Als besonders vorteilhaft hat es sich herausgestellt, mindestens eines der beiden (vorzugsweise beide) Deckelelemente 3, 4 gusstechnisch herzustellen bzw. insbesondere aus Aluminiumdruckguss zu bilden. Diese Herstellungsweise ermöglicht vorallem auf einfache Weise die weitere, bevorzugte Maßgabe, die Deckelelemente 3, 4 wärmetauscherseitig jeweils mit einer an die Wendelsteigung angepaßten Oberflächenform zu versehen, so dass nicht ungewollt Abgas durch den Übergangsbereich zwischen Wärmetauscher 1 und Deckelelement 3, 4 strömt.It has turned out to be particularly advantageous, at least one of the two (preferably both) cover elements 3, 4 produced by casting or in particular of die-cast aluminum to build. This method of production enables above all in a simple way, the further, preferred proviso, the Cover elements 3, 4 on the heat exchanger side each with an on to provide the spiral pitch adapted surface shape, so that does not unintentionally exhaust through the transition area between Heat exchanger 1 and cover element 3, 4 flows.

Die aufgrund der guten Wärmeübertragung niedrigen Abgastemperaturen eröffnen ferner die insbesondere fertigungstechnisch günstige Möglichkeit, das Mantelteil 7 aus Kunststoff herzustellen. Insbesondere in diesem Fall ist dabei vorteilhaft vorgesehen, dass die Deckelelemente 3, 4, wie in Figur 8 und 9 dargestellt, über zuganker 26 fest, aber lösbar miteinander verbunden sind, wobei vorzugsweise mindestens drei, vorzugsweise vier Zuganker 26 vorgesehen sind, die außen am Gehäuse 6, das Mantelteil 7 umschließend angeordnet sind.The low exhaust gas temperatures due to the good heat transfer also open up the particular manufacturing technology favorable possibility to produce the casing part 7 made of plastic. In this case, in particular, it is advantageous provided that the cover elements 3, 4, as shown in Figure 8 and 9 shown, over zuganker 26 firm, but solvable with each other are connected, preferably at least three, preferably four tie rods 26 are provided, the outside of the housing 6, the shell part 7 are arranged enclosing.

Unabhängig vom verwendeten Material ist ferner vorteilhaft vorgesehen, dass am Mantelteil 7 ein mit dem Abgaskanal 8 in Verbindung stehender Abgasaustritt 17 angeordnet ist. An diesen Abgasaustritt 17 schließt sich, was in Figur 9 dargestellt ist, ein Abgasrohr an, das vorzugsweise ebenfalls aus Kunststoff bestehen kann. Das Abgas selbst ist im Abgaskanal 8 bereits auf unter 100 °C abgekühlt und somit für einen Kunststoffmantel nicht mehr zu heiß.Regardless of the material used is also advantageous provided that on the shell part 7 a with the exhaust passage 8 in Compound standing exhaust gas outlet 17 is arranged. At this exhaust gas outlet 17 closes, as shown in FIG is, an exhaust pipe, preferably also out Plastic can exist. The exhaust gas itself is in the exhaust duct 8 already cooled to below 100 ° C and thus for a plastic sheath not too hot anymore.

Wie beim Heizgerät gemäß Figur 7 weist auch der Mantelteil 7 des erfindungsgemäßen Heizgerätes an der geodätisch tiefsten Stelle einen Kondensatablauf 18 auf. Ferner ist am brennerseitige Deckelelement 3 für den Brenner 5 eine etwa den Innendurchmesser des Wärmetauschers 1 aufweisende Öffnung 19 vorgesehen, in die der auf eine entsprechend groß ausgebildet Brennerträgerplatte 20 montierte Brenner 5 einsetzbar ist. Schließlich sind erfindungsgemäß am brennerabgewandten Deckelelement wahlweise Befestigungselemente 22 für das Heizgerät und/oder ein Befestigungselement 23 für eine Brennraumdämmung 24 (vorzugsweise gemäß der DE 196 27 961 C2) angeordnet. As with the heater according to FIG. 7, the jacket part 7 also has the heater according to the invention at the geodesic deepest Make a condensate drain 18. Furthermore, on the burner side Cover element 3 for the burner 5 is approximately the inner diameter the opening 1 of the heat exchanger 1 is provided, in the on a correspondingly large designed burner plate 20 mounted burner 5 can be used. Finally, according to the invention on the burner facing away cover element optionally fastening elements 22 for the heater and / or a fastening element 23 for a combustion chamber insulation 24 (preferably according to DE 196 27 961 C2) arranged.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Wärmetauscherheat exchangers
22
Brennkammercombustion chamber
33
vorderes Deckelelementfront cover element
44
hinteres Deckelelementrear cover element
55
Brennerburner
66
Gehäusecasing
77
Mantelteiljacket part
88th
Abgaskanalexhaust duct
99
EndeThe End
1010
EndeThe End
1111
Anschlußstutzenconnecting branch
1212
Anschlußstutzenconnecting branch
1313
Öffnungopening
1414
Öffnungopening
1515
Dichtungpoetry
1616
Dichtungpoetry
1717
Abgasaustrittexhaust outlet
1818
Kondensatablaufcondensate drain
1919
Öffnungopening
2020
BrennerträgerplatteBurner support plate
2121
Kanteedge
2222
Befestigungselementfastener
2323
Befestigungselementfastener
2424
BrennraumdämmungCombustion chamber insulation
2525
AbgasströmungsspalteExhaust flow gaps
2626
Zugankertie rods
DA D A
Aussendurchmesser AnschlußstutzenOuter diameter connecting piece
DO D O
Durchmesser ÖffnungDiameter opening

Claims (11)

Heizgerät, umfassend einen schraubenförmig gewendelten Wärmetauscher (1), eine zylindrische Brennkammer (2), die axial von einem vorderen (3) und einem hinteren Deckelelement (4) und radial vom Wärmetauscher (1) begrenzt ist, wobei ein Brenner (5) für flüssige oder gasförmige Brennstoffe an einem der beiden Deckelelemente (3, 4) angeordnet ist, ein Gehäuse (6), das aus einem Mantelteil (7) und den Deckelelementen (3, 4) gebildet ist und den Wärmetauscher (1) unter Ausbildung eines Abgaskanals (8) umschließt, dadurch gekennzeichnet, dass der Wärmetauscher (1) an seinen beiden Enden (9, 10) axial orientiert ausgerichtete Anschlußstutzen (11, 12) aufweist, und dass an den Deckelelementen (3, 4) an die Anschlußstutzen (11, 12) formangepaßt ausgebildete und von diesen abgedichtet durchgriffene Öffnungen (13, 14) vorgesehen sind. Heater, comprising a helically coiled heat exchanger (1), a cylindrical combustion chamber (2) which is delimited axially by a front (3) and a rear cover element (4) and radially from the heat exchanger (1), wherein a burner (5) for liquid or gaseous fuels at one of the two cover elements (3 , 4) is arranged, a housing (6) which is formed from a jacket part (7) and the cover elements (3, 4) and encloses the heat exchanger (1) to form an exhaust gas duct (8), characterized, that the heat exchanger (1) at its two ends (9, 10) axially oriented aligned connecting pieces (11, 12), and that on the cover elements (3, 4) to the connecting pieces (11, 12) form-fitting formed and sealed by these openings (13, 14) are provided. Heizgerät nach Anspruch 1,
dadurch gekennzeichnet, dass die Deckelelemente (3, 4) axial in das Mantelteil (7) einschieb- und formschlüssig mit diesem abgedichtet verbindbar ausgebildet sind.Heater according to claim 1,
characterized in that the cover elements (3, 4) axially in the casing part (7) einschieb- and form-fitting manner formed sealed with this connectable. Heizgerät nach Anspruch 1 oder 2,
dadurch gekennzeichnet, dass mindestens eines der beiden Deckelelemente (3, 4) gusstechnisch hergestellt, vorzugsweise aus Aluminumdruckguss gebildet ist. Heater according to claim 1 or 2,
characterized in that at least one of the two cover elements (3, 4) produced by casting, preferably formed of aluminum die-cast. Heizgerät nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet, dass die kreisförmig ausgebildeten Öffnungen (13, 14) an den Deckelelementen (3, 4) einen Durchmesser (DO) aufweisen, der - eine entsprechende Dichtung berücksichtigend - geringfügig größer als der Aussendurchmesser (DA) der rohrförmig ausgebildeten Anschlußstutzen (11, 12) ausgebildet ist.Heater according to one of claims 1 to 3,
characterized in that the circular openings (13, 14) on the cover elements (3, 4) have a diameter (D O ), the - considering a corresponding seal - slightly larger than the outer diameter (D A ) of the tubular connecting piece ( 11, 12) is formed. Heizgerät nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet, dass zwischen den Anschlußstutzen (11, 12) und den Deckelelementen (3, 4) jeweils eine Dichtung (15), vorzugsweise eine O-Ring-Dichtung, vorgesehen ist.Heater according to one of claims 1 to 4,
characterized in that between the connection piece (11, 12) and the cover elements (3, 4) each have a seal (15), preferably an O-ring seal, is provided. Heizgerät nach einem der Ansprüche 1 bis 5,
dadurch gekennzeichnet, dass die Deckelelemente (3, 4) wärmetauscherseitig jeweils eine der Wendelsteigung angepaßte Oberflächenform aufweisen.Heater according to one of claims 1 to 5,
characterized in that the cover elements (3, 4) on the heat exchanger side each have a spiral pitch adapted surface shape. Heizgerät nach einem der Ansprüche 1 bis 6,
dadurch gekennzeichnet, dass zwischen den Deckelelementen (3, 4) und dem Mantelteil (7) jeweils eine Dichtung (16), vorzugsweise eine LippenDichtung, vorgesehen ist.Heater according to one of claims 1 to 6,
characterized in that between the cover elements (3, 4) and the casing part (7) each have a seal (16), preferably a lip seal, is provided. Heizgerät nach einem der Ansprüche 1 bis 7,
dadurch gekennzeichnet, dass der Mantelteil (7) aus Kunststoff gebildet ist.Heater according to one of claims 1 to 7,
characterized in that the jacket part (7) is formed from plastic. Heizgerät nach einem der Ansprüche 1 bis 8,
dadurch gekennzeichnet, dass die Deckelelemente (3, 4) über Zuganker (26) fest, aber lösbar miteinander verbunden, wobei vorzugsweise mindestens drei, vorzugsweise vier Zuganker (26) vorgesehen sind, die außen am Gehäuse (6), das Mantelteil (7) umschließend angeordnet sind. Heater according to one of claims 1 to 8,
characterized in that the cover elements (3, 4) via tie rods (26) firmly but detachably connected to each other, preferably at least three, preferably four tie rods (26) are provided, the outside of the housing (6), the shell part (7). are arranged enclosing. Heizgerät nach einem der Ansprüche 1 bis 9,
dadurch gekennzeichnet, dass am brennerseitige Deckelelement für den Brenner (5) eine etwa den Innendurchmesser des Wärmetauschers (1) aufweisende Öffnung (19) vorgesehen ist, in die der auf eine entsprechend groß ausgebildet Brennerträgerplatte (20) montierte Brenner (5) einsetzbar ist.Heater according to one of claims 1 to 9,
characterized in that on the burner-side cover member for the burner (5) has an approximately the inner diameter of the heat exchanger (1) having opening (19) into which the burner mounted on a correspondingly large burner plate (20) mounted burner (5) can be inserted. Heizgerät nach einem der Ansprüche 1 bis 10,
dadurch gekennzeichnet, dass der Mantelteil (7) beidseitig umlaufende Kanten (21) aufweist, die nach Montage der Deckelelemente (3, 4) umgebördelt werden.Heater according to one of claims 1 to 10,
characterized in that the jacket part (7) on both sides encircling edges (21), which are flanged after mounting the cover elements (3, 4).
EP04029792A 2004-01-30 2004-12-16 Heating device Active EP1562006B1 (en)

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EP2090858A1 (en) 2008-02-12 2009-08-19 Viessmann Werke GmbH & Co. KG Heat exchanger
DE102008008734A1 (en) 2008-02-12 2009-08-13 Viessmann Werke Gmbh & Co Kg heat exchangers
EP2105679A2 (en) 2008-03-28 2009-09-30 Viessmann Werke GmbH & Co. KG Boiler
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EP2306113A3 (en) * 2009-09-29 2013-11-13 Viessmann Werke GmbH & Co. KG Heating device
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DE102011010444A1 (en) 2011-02-04 2012-08-09 Viessmann Werke Gmbh & Co Kg Heating boiler has coil tube having coil tube ends for hydraulically connecting coil tube portions to supply and discharge ports and terminating hydraulic connection of coil tube portions respectively
DE102012101268A1 (en) 2011-03-04 2012-09-06 Viessmann Werke Gmbh & Co Kg Method for operating heating system, involves heating of heating circuit medium guided in pipe network by heat exchanger and carrying out hydraulic balancing of pipe network with volume flow sensor
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DE102014107844B3 (en) * 2014-06-04 2015-12-03 Viessmann Werke Gmbh & Co Kg heater
ITUB20153485A1 (en) * 2015-09-08 2017-03-08 Riello Spa HEAT EXCHANGER FOR A DOMESTIC BOILER OR A WATER HEATER
ITUB20153465A1 (en) * 2015-09-08 2017-03-08 Riello Spa HEAT EXCHANGER TO HEAT WATER IN A DOMESTIC BOILER OR IN A WATER HEATER
EP3141839A1 (en) * 2015-09-08 2017-03-15 Riello S.p.A. Heat exchanger for heating water in a domestic boiler or a water heater
EP3141840A1 (en) * 2015-09-08 2017-03-15 Riello S.p.A. Heat exchanger for a domestic boiler or a water heater
CN107044786A (en) * 2017-04-06 2017-08-15 广东诺科冷暖设备有限公司 Full premix combustion condensed heat exchanger
DE102018116980A1 (en) 2018-07-13 2020-01-16 Viessmann Werke Gmbh & Co Kg heater
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IT202200003476A1 (en) * 2022-02-24 2023-08-24 Valmex S P A Reinforced heat exchanger

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SI1562006T1 (en) 2007-12-31
ATE368833T1 (en) 2007-08-15
PL1562006T3 (en) 2007-12-31
DE102004005048A1 (en) 2005-09-01
ES2291803T3 (en) 2008-03-01
EP1562006B1 (en) 2007-08-01
DK1562006T3 (en) 2007-11-26
DE502004004502D1 (en) 2007-09-13

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