EP0533554B1 - Kombinierter Wärmetauscher für Heizung und Brauchwasser mit nahtloserer Rohrwendel für die Brauchwasserheizung - Google Patents

Kombinierter Wärmetauscher für Heizung und Brauchwasser mit nahtloserer Rohrwendel für die Brauchwasserheizung Download PDF

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Publication number
EP0533554B1
EP0533554B1 EP92402523A EP92402523A EP0533554B1 EP 0533554 B1 EP0533554 B1 EP 0533554B1 EP 92402523 A EP92402523 A EP 92402523A EP 92402523 A EP92402523 A EP 92402523A EP 0533554 B1 EP0533554 B1 EP 0533554B1
Authority
EP
European Patent Office
Prior art keywords
tubes
heating
sanitary
circuit
water circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP92402523A
Other languages
English (en)
French (fr)
Other versions
EP0533554A1 (de
Inventor
René Prevot
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.)
ELM Leblanc SAS
Original Assignee
ELM Leblanc SAS
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Filing date
Publication date
Priority claimed from FR9111556A external-priority patent/FR2667399A1/fr
Application filed by ELM Leblanc SAS filed Critical ELM Leblanc SAS
Publication of EP0533554A1 publication Critical patent/EP0533554A1/de
Application granted granted Critical
Publication of EP0533554B1 publication Critical patent/EP0533554B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/02—Tubular elements of cross-section which is non-circular
    • 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
    • F24H1/48—Water heaters for central heating incorporating heaters for domestic water
    • F24H1/52—Water heaters for central heating incorporating heaters for domestic water incorporating heat exchangers for domestic water
    • 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
    • F28D7/0066—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids
    • 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
    • F28D7/0066—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids
    • F28D7/0075—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids with particular circuits for the same heat exchange medium, e.g. with the same heat exchange medium flowing through sections having different heat exchange capacities or for heating or cooling the same heat exchange medium at different temperatures
    • 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
    • F28D7/08—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 otherwise bent, e.g. in a serpentine or zig-zag
    • 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
    • F28D7/08—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 otherwise bent, e.g. in a serpentine or zig-zag
    • F28D7/082—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 otherwise bent, e.g. in a serpentine or zig-zag with serpentine or zig-zag configuration
    • F28D7/085—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 otherwise bent, e.g. in a serpentine or zig-zag with serpentine or zig-zag configuration in the form of parallel conduits coupled by bent portions
    • 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
    • F28D7/10—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 arranged one within the other, e.g. concentrically
    • F28D7/14—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 arranged one within the other, e.g. concentrically both tubes being bent

Definitions

  • the present invention relates to a central heating installation provided with a hot water circuit for domestic use or sanitary water and comprising a heating device comprising an envelope or ferrule, the lower part of which is provided with a burner, in particular of a gas burner and on which is wound or not a conduit in which the water circulates from the heating circuit, this circuit then crosses a bundle of fins located at the upper part of the envelope on the trajectory of the hot gases escaping from the latter to then be directed to a discharge pipe.
  • European patent EP-A-0329508 (priority French patent FR-A-2627266) describes a central heating installation in which the exchanger is mixed. It mainly comprises a set of tubes used for heating domestic water, shaped as a pin or coil which are arranged inside flattened tubes. Said tubes form a block connected by elbows and a set of fins, they constitute the heating water circuit, the sanitary water being heated by said water.
  • This configuration ensures that the tubes of the domestic hot water circuit, arranged in a pin or coil in the flat tubes in the heating water circuit are not in contact with them.
  • the dimensions of said flattened tubes and of said tubes are chosen so that the volume of water contained between the flattened tubes and the meanders of the hairpin tubes is as small as possible.
  • This arrangement requires having at each end brazed or welded end pieces to close off the heating circuit as well as elbows used to connect the respective circuits together.
  • the present invention proposes to provide an improved installation which does not have the drawbacks mentioned above.
  • Figure 1 is an overall perspective view of the assembly exploded exploding the various constituents of the mixed exchanger A.
  • Figure 2 is a perspective view of the tubes shaped into a series of pins in two perpendicular planes two by two.
  • Figure 3 is a plan view of the assembly of the mixed exchanger A.
  • Figure 4 is a plan view in side elevation of the mixed exchanger A.
  • Figure 5 is a plan view in front elevation during assembly of the mixed exchanger A.
  • the heater object of this invention, comprises a first conduit for heating the water of the central heating circuit and a second duct for heating domestic water.
  • the duct of the heating circuit is in the form of a series flattened tube pins such as 2 which each have a cross section of oval shape, the largest axis being horizontal.
  • These tubes are connected at one of their ends by elbows obtained by bending these said tubes.
  • the sanitary water pipe consists of a tube, preferably of circular cross section, placed inside the flattened tubes 2 of the heating circuit, shaped into a series of pins obtained by bending this said tube in two perpendicular planes two by two. This increases the heat exchange surface between the two circuits of the mixed exchanger since all the bends are in the heating circuit and not outside.
  • the positioning of the pin-shaped sanitary circuit tubes arranged inside the flattened tubes of the heating circuit is carried out so that there is no physical contact between the walls of the tubes 1 and 2, and so that the volume of water contained in the residual annular space is as small as possible. It also results from this configuration that all the calories conveyed by the heating circuit are transferred into the sanitary water circuit.
  • the respective assembly of the constituent sub-assemblies is as follows: the tubes 1 shaped as a hairpin of the sanitary water circuit, provided with plastic rings 6, are inserted inside the flattened tubes 2 of the water circuit of heating, while the fins 3 and the manifold 4 thread on the flattened tubes 2 of the heating circuit, the cover 5 completely closing off the assembly. This collector guarantees the routing of the heating fluid as well as the tightness of the assembly.
  • This collector 4 maintains the two circuits of the exchanger. It is brazed on the heating water circuit.
  • Reading the above description shows that the invention provides a heating installation ensuring perfect heat exchange between the two incorporated circuits of heating water and sanitary water thanks to a large heat exchange surface obtained by the configuration. the different circuits.

Landscapes

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

Claims (6)

  1. Zentralheizung mit einem Kreislauf von Heißwasser für den häuslichen Gebrauch oder für Brauchwasser, die einen Heizapparat mit einem Mantel aufweist, dessen innerer Bereich mit einem Brenner ausgestattet ist, insbesondere mit einem Gasbrenner, und auf dem sich eine Leitung des Heizkreislaufs schlängelt oder nicht, die anschließend ein im oberen Bereich des Mantels auf dem Strömungsweg der heißen Gase angeordnetes Rippenbündel durchquert, wobei der Heizkreislauf im Bereich seiner Durchquerung des Rippenbündels in Form einer Vielzahl von miteinander durch Krümmer verbundenen Flachrohren vorliegt, und wobei der Kreislauf des heißen Brauchwassers in Form einer Reihe von haarnadelförmigen, untereinander durch Krümmer verbundenen Rohren (1) vorliegt, wobei bei dem Heizkreislauf die Brauchwasserrohre im Inneren der Flachrohre (2) angeordnet sind,
    dadurch gekennzeichnet,
    daß
    - die Rohre der Brauchwasser-Rohrschlange haarnadelförmig ausgebildet sind, und die Rohrschlange einen in einer vertikalen Ebene um 90° gekrümmten Rohrabschnitt, darauf einen weiteren, wieder um 90° zum vorhergehenden gekrümmten Rohrabschnitt usw. aufweist,
    - die Rohrschlange eine aufeinanderfolgende Reihe von in zwei zueinander senkrechten Ebenen ohne Schweißnaht gekrümmten Rohrabschnitten aufweist,
    - die Zusammenführung an einem der gemeinsamen Enden der Baugruppe aus dem haarnadelförmigen Brauchwasserkreislauf und den Flachrohren (2) des Heißwasserkreislaufs durch eine Endkammer (4) erfolgt, die auf diese Rohre (2) montiert ist, wobei diese Endkammer selbst durch eine Abdekkung (5) abgeschlossen ist.
  2. Heizung gemäß Anspruch 1,
    dadurch gekennzeichnet,
    daß die Enkammer (4) mit Trennwänden (7) versehen ist, durch die das Heizwasser zum seriellen Zirkulieren in den Flachrohren gezwungen wird.
  3. Heizung gemäß Anspruch 1 oder 2,
    dadurch gekennzeichnet,
    daß die Rohre (1) des Kreislaufs des heißen Brauchwassers, die in einer Reihe von Haarnadeln in den Flachrohren (2) des Heizungswasserkreislaufs angeordnet sind, nicht mit diesen Flachrohren in Kontakt stehen.
  4. Heizung gemäß einem der Ansprüche 1 bis 3,
    dadurch gekennzeichnet,
    daß die Abmessungen der Flachrohre (2) und der Rohre (1) des Brauchwasserkreislaufs so bemessen sind, daß das Wasservolumen im ringförmigen Raum zwischen den Flachrohren und den Haarnadelrohren so klein wie möglich ist.
  5. Heizung gemäß einem der Ansprüche 1 bis 4,
    dadurch gekennzeichnet,
    daß die haarnadelförmigen Flachrohre (2) des Heizungswasserkreislaufs über Krümmer miteinander verbunden sind, die durch paarweises Rohrkrümmen dieser Rohre in zwei zueinander senkrechten Ebenen erhalten wurden.
  6. Heizung gemäß einem der vorhergehenden Ansprüche,
    dadurch gekennzeichnet,
    daß die Rohre (1) des Brauchwasserkreislaufs, die haarnadelförmig in den Flachrohren (2) des Heizwasserkreislaufs angeordnet sind, mit einer Vielzahl von hitze- und feuchtigkeitsbeständigen Ringen (6) aus einem Kunststoff, wie zum Beispiel aus Silicon, versehen sind, wobei diese Ringe auf das Rohr in regelmäßigen Abständen aufgeschoben sind.
EP92402523A 1991-09-19 1992-09-15 Kombinierter Wärmetauscher für Heizung und Brauchwasser mit nahtloserer Rohrwendel für die Brauchwasserheizung Expired - Lifetime EP0533554B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9111556 1991-09-19
FR9111556A FR2667399A1 (fr) 1990-09-19 1991-09-19 Procede et appareil de controle, notamment pour des recipients.

Publications (2)

Publication Number Publication Date
EP0533554A1 EP0533554A1 (de) 1993-03-24
EP0533554B1 true EP0533554B1 (de) 1995-01-18

Family

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Application Number Title Priority Date Filing Date
EP92402523A Expired - Lifetime EP0533554B1 (de) 1991-09-19 1992-09-15 Kombinierter Wärmetauscher für Heizung und Brauchwasser mit nahtloserer Rohrwendel für die Brauchwasserheizung

Country Status (4)

Country Link
EP (1) EP0533554B1 (de)
AT (1) ATE117425T1 (de)
DE (1) DE69201226T2 (de)
ES (1) ES2066582T3 (de)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2742820C2 (de) * 1977-09-23 1985-09-12 Robert Bosch Gmbh, 7000 Stuttgart Wärmeübertrager für einen gas- oder ölbeheizten Durchlauf-Wassererhitzer
IT1167106B (it) * 1983-01-11 1987-05-13 Luciano Tesolin Scambiatore a tubi d'acqua coassiali a geometria spiroidale,per caldaie da riscaldamento e produzione d'acqua calda sanitaria,per bruciatori di gas ad aria aspirata
FR2627266B1 (fr) * 1988-02-16 1990-06-01 Leblanc Sa E L M Installation de chauffage central avec circuit d'eau chaude a usage sanitaire

Also Published As

Publication number Publication date
ES2066582T3 (es) 1995-03-01
DE69201226D1 (de) 1995-03-02
DE69201226T2 (de) 1995-05-24
EP0533554A1 (de) 1993-03-24
ATE117425T1 (de) 1995-02-15

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