EP0329508B1 - Zentralheizung mit Brauchwasserkreislauf - Google Patents

Zentralheizung mit Brauchwasserkreislauf Download PDF

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Publication number
EP0329508B1
EP0329508B1 EP89400269A EP89400269A EP0329508B1 EP 0329508 B1 EP0329508 B1 EP 0329508B1 EP 89400269 A EP89400269 A EP 89400269A EP 89400269 A EP89400269 A EP 89400269A EP 0329508 B1 EP0329508 B1 EP 0329508B1
Authority
EP
European Patent Office
Prior art keywords
tube
tubes
heating
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
EP89400269A
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English (en)
French (fr)
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EP0329508A1 (de
Inventor
René Prévot
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
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ELM Leblanc SAS
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Filing date
Publication date
Application filed by ELM Leblanc SAS filed Critical ELM Leblanc SAS
Priority to AT89400269T priority Critical patent/ATE73918T1/de
Publication of EP0329508A1 publication Critical patent/EP0329508A1/de
Application granted granted Critical
Publication of EP0329508B1 publication Critical patent/EP0329508B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • F24H1/526—Pipes in pipe heat exchangers for sanitary water
    • 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
    • F28D7/0083—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids with units having particular arrangement relative to a supplementary heat exchange medium, e.g. with interleaved units or with adjacent units arranged in common flow of supplementary heat exchange medium
    • 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
    • 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
    • F28D7/087—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 assembled in arrays, each array being arranged in the same plane

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 a pipe is wound or not in which the water circulates from the heating circuit, this circuit then passing through 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.
  • the domestic hot water circuit comprises a second conduit in which the heating water circulates, and which crosses the bundle of fins in intimate thermal contact with the first conduit in which circulates the heating water.
  • French Patent No. 1,332,607 describes such a heating installation in which the intimate thermal connection between the first conduit, in which the water from the heating circuit circulates, and the second conduit in which the water from the sanitary circuit circulates, is obtained by joining the two conduits so that they constitute a double-passage tube which crosses the bundle of fins, this tube having a cross section of suitable shape, for example circular or elliptical.
  • BE-A-671 097 also discloses double duct heating installations in which the intimate thermal contact between the two ducts, respectively of the heating water circuit and the domestic water circuit, is obtained by incorporating one of the conduits in the other, these two conduits then being produced in the form of two tubes, possibly concentric, passing through the bundle of fins of the heating appliance, the external surface of the internal tube being applied joined against the inner surface of the outer tube.
  • FR A 1 484 821 - to produce a heat exchanger in which the heating circuit, in its crossing of the fin bundle, is produced in the form of a plurality of flattened tubes connected to each other by elbows and the sanitary water circuit is produced in the form of a tube folded in an S or a pin shape and arranged inside the flattened tubes constituting the duct of the heating circuit.
  • the present invention proposes to provide an improved installation which does not have the drawbacks mentioned above.
  • a central heating installation provided with a hot water circuit for domestic use, or sanitary water, which comprises a heating device comprising a ferrule whose lower part is provided with a burner, in particular with a gas burner, and onto which a heating circuit duct is wound or not, which then crosses a bundle of fins located at the upper part of the shell, on the hot gas path, the heating circuit in its crossing of the fin bundle being produced in the form of a plurality of flattened tubes connected to each other by elbows and the domestic hot water circuit being produced in the form of a tube shaped as a pin or serpentine and disposed inside said flattened tubes when crossing the fin bundle, the dimensions of said flattened tubes and said tubes are chosen so that the volume of water contained between the flattened tubes and the the convolutions of the pinned tubes is as small as possible, characterized in that the tube, arranged as a pin or a serpentine, in which the sanitary water circulates, has a slightly curved configuration in its parts which are located in the vicinity of
  • a tip which is brazed or welded on said end so as to close it, this tip having the shape of a plate provided 'a first opening for the connection of the bent tube, ensuring the connection between the coils or pins of the sanitary water conduit and a second opening for the connection of the bent tube which ensures the connection between two consecutive flattened tubes.
  • a transmission surface is provided. thermal between the convolutions of the tube wound in a pin or in a spiral, inside the flattened tubes.
  • said thermal transmission surface is produced in the form of a metal plate comprising partially cylindrical parts matching the shape of the tube shaped as a pin, on which they come to engage, connected by vertical flat parts.
  • the two conduits have an intimate heat exchange in the upper part of the heating appliance where the fin bundle 18 is positioned (part shown in FIGS. 1 and 2).
  • the duct 10 ′ of the circuit in which the heating water circulates is in the form of a plurality of flattened tubes such as 10 ′, which each have a oval cross section, or substantially oval, the major axis of which is arranged vertically.
  • the different flattened tubes 10 ′ arranged in parallel are connected at their ends by bent tubes such as 14.
  • the sanitary water conduit 12 consists of a tube preferably of circular cross section and it is disposed inside the flattened tubes such as 10 ′ which it crosses in the configuration of a pin or a coil so as to considerably increase the heat exchange surface, between the heating water which circulates in the flattened tubes 10 ′ and the sanitary water contained in the tube in pin configuration 12 ′, in its crossing of the flattened tube .
  • each tube 10 ′ constituting a portion of the heating water circuit in its passage through the fin bundle 18, receives a portion in the pin configuration 12 ′ of the water conduit sanitary.
  • the positioning of the tube section in the pin configuration 12 ′ in the flattened tube 10 ′ constituting the heating water conduit, is carried out so that there is no contact between the walls of the tubes 12 ′ and 10 ′.
  • the section of the tube in the pin configuration 12 ′ is chosen so that the volume of water contained between the flattened tube 10 ′ and the pin or coil 12 ′ is as small as possible so that the water circulating in the sanitary circuit 12 takes all the calories from the heating water, without it being necessary to put the accelerator of the heating circuit into operation, the absence of contact between the walls of the tubes 10 ′ and 12 ′ preventing any boiling of the domestic water circulating in the tube 12 ′.
  • the ends of the flattened tubes 10 ′ are closed off according to the invention using end pieces 20 in the form of plates (FIGS. 3 and 4), which have an opening 22 for connecting the bent tubes 16 which provide the connection between two consecutive coils or pins 12 ′ and a second opening 24 for the connection of bent tubes 14 ensuring the connection between two flattened tubes 10 ′ consecutive.
  • the end plates 20 are preferably brazed on the ends of the tubes 10 ′.
  • FIG. 5 illustrates an exemplary embodiment of a fin 18.
  • This comprises a series of openings such as 26, the shape of which corresponds to the cross section of the flattened tubes 10 ′, these fins being successively threaded on the network of tubes parallel 10 ′ on which they are brazed in a known manner (see FIG. 2).
  • additional exchange surfaces 28 can be provided connecting the convolutions of the shaped tube to one another hairpin or serpentine 12 ′ incorporated in each flattened tube 10 ′.
  • this additional exchange surface is in the form of a plate comprising partially cylindrical parts 30 which come to engage on the different portions of the tube 12 ′ wound in a pin, these parts 30 being connected by vertical flat parts 32.
  • FIG. 7 shows the relative arrangement of the tube 12 ′ wound in a pin, provided with the plate 28, and the flattened tube 10 ′ in which the pin 12 ′ is arranged.
  • the plate 28 can be optionally brazed on the tube 12 ′.
  • the tube 12 ′ arranged in a pin or serpentine is produced in a one-piece structure with the plate 28, the tube and plate assembly being stamped in the form of two half-shells 34 , 34 ′ which are connected by their joint plane 36, and secured by a welding process without filler metal, for example by pressure, ultrasound or others.
  • the tube 12 ′ arranged in a pin or in a serpentine, in which circulates the sanitary water, has a slightly curved configuration in its parts which are located in the vicinity of the walls of the tube 10 ′ in which the heating water circulates and this tube 12 ′ is provided with a plurality of rings 38 made of plastic material resistant to heat and humidity, for example silicone, these rings being threaded on the tube 12 ′ at regular intervals as shown in Figure 12.
  • This particular arrangement has a double advantage: it allows first of all avoid contact of the tubes 12 ′ with the tube constituting the conduit 10 ′ in which the heating water circulates and on the other hand it eliminates the vibrations of hydraulic origin which occur in this type of installation when the sanitary water circulates in the coil according to which the domestic water pipe is configured.
  • the invention provides a heating installation ensuring perfect heat exchange between the incorporated circuits of heating water and sanitary water, thanks to a large thermal contact surface obtained without physical contact of the circuits, by the relative arrangement of the two conduits, by the hairpin configuration of the sanitary water circulation conduit tube passing through the flattened tube of the heating water conduit, by the small volume of water contained between each flattened tube and the tube arranged as a pin it contains and thanks to the arrangement of plastic rings threaded on the tube constituting the sanitary water circuit which keep the latter away from the tube constituting the water circuit of heating by eliminating any source of vibration of hydraulic origin.
  • the invention makes it possible, by circulating water in the two circuits, to distribute the total power of the appliance between the two circuits as a function of the desired hot water flow rates, while avoiding any boiling of the hot water.
  • the invention also makes it possible to achieve a significant saving in material (brazing material) compared to known solutions using joined tubes.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Public Health (AREA)
  • Health & Medical Sciences (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Details Of Fluid Heaters (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
  • Finger-Pressure Massage (AREA)
  • Sorption Type Refrigeration Machines (AREA)
  • Thermotherapy And Cooling Therapy Devices (AREA)
  • Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)

Claims (6)

1. Zentralheizung mit Warmwasserkreislauf zum häuslichen oder sanitären Gebrauch, die eine Heizvorrichtung mit einer Ummantelung aufweist, deren unterer Teil einen Brenner, insbesondere einen Gasbrenner, aufweist und auf der gegebenenfalls eine Leitung (10) des Heizkreislaufes aufgewickelt ist, der anschließend ein Bündel von Stegen (18) am oberen Teil der Ummantelung über dem Verlauf des heißen Gasstroms durchläuft, wobei der Heizkreislauf dort wo er das Bündel von Stegen durchläuft, in Form einer Vielzahl von durch Kniestücke (14) miteinander verbundenen abgeflachten Rohren (10′) gebildet ist und der Kreislauf (12) für das sanitäre Warmwasser in Form eines haarnadelförmig oder schlangenförmig angeordneten Rohres (12′) gebildet ist, das dort, wo es das Bündel von Stegen (18) durchläuft, im Inneren der abgeflachten Rohre (10′) angeordnet ist, wobei die Abmessungen der abgeflachten Rohre (10′) und der Rohre (12′) so gewählt sind, daß das zwischen den abgeflachten Rohren und den Windungen der haarnadelförmigen Rohre enthaltene Wasservolumen soweit wie möglich reduziert ist, dadurch gekennzeichnet, daß das haarnadelförmig oder schlangenförmig angeordnete Rohr (12′), in dem das Sanitärwasser zirkuliert, eine leicht gewölbte Konfiguration aufweist in seinen Teilen, die sich in Nachbarschaft der Wände des Rohres (10′) befinden, in dem das Heizwasser zirkuliert, und daß das Rohr (12′) mit einer Vielzahl von Ringen (38) aus hitze- und feuchtigkeitsbeständigem Kunststoff versehen ist, wie zum Beispiel aus Silikon, wobei diese Ringe so in regelmäßigen Abständen auf das Rohr (12′) aufgereiht sind, daß die Rohre (12′) nicht in Kontakt mit den abgeflachten Rohren (10′) des Heizwasserkreislaufs sind.
2. Zentralheizung nach Anspruch 1, dadurch gekennzeichnet, daß an jedem Ende der abgeflachten Rohre (10′) außerhalb des Bündels von Stegen ein Ansatz (20) vorgesehen ist, der auf dem Ende angelötet oder angeschweißt ist, um dieses abzudichten, wobei dieser Ansatz die Form einer platte aufweist, die versehen ist mit einer ersten Öffnung (22) zum Anschluß des gewölbten Rohrs (16), das die Verbindung zwischen den Schlangen oder Haarnadeln (12′) der Sanitärwasserleitung gewährleistet, und einer zweiten Öffnung (24) zum Anschluß des gewölbten Rohrs (14), das die Verbindung zwischen zwei aufeinanderfolgenden abgeflachten Rohren (10′) gewährleistet.
3. Zentralheizung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß im Hinblick auf die nochmalige Vergrößerung des thermischen Austausches zwischen dem Kreislauf des Heizwassers und dem des Sanitärwassers bei ihrem Durchgang durch das Bündel von Stegen eine Oberfläche (28) zur thermischen Transmission zwischen den haarnadelförmig oder schlangenförmig im Inneren der abgeflachten Rohre (10′) angeordneten Windungen des Rohres (12′) vorgesehen ist.
4. Zentralheizung nach Anspruch 3, dadurch gekennzeichnet, daß die Oberfläche zur thermischen Transmission in Form einer metallischen platte (28) gebildet ist, die teilweise zylindrische Teile (30) aufweist, die sich an die Form des haarnadelförmig gebildeten Rohrs (12′) anschmiegen, auf dem sie, verbunden durch vertilkale gerade Teile (32), aufzuliegen kommen.
5. Zentralheizung nach Anspruch 3 oder 4, dadurch gekennzeichnet, daß die metallische Platte (28) auf das Rohr (12′) aufgelötet ist.
6. Zentralheizung nach einem der Ansprüche 3 bis 5, dadurch gekennzeichnet, daß das haarnadelförmig oder schlangenförmig angeordnete Rohr (12′) in einstückiger Form mit der platte (28) ausgeführt ist, wobei die Einheit aus Rohr (12′) und platte (28) in Form von zwei Halbschalen (34, 34′) gezogen ist, die an ihrer Verbindungsebene (36) zusammengefügt und durch ein Schweißverfahren ohne Metallzugabe, insbesondere unter Druck, Ultraschall oder dergleichen, fest verbunden sind.
EP89400269A 1988-02-16 1989-01-31 Zentralheizung mit Brauchwasserkreislauf Expired - Lifetime EP0329508B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89400269T ATE73918T1 (de) 1988-02-16 1989-01-31 Zentralheizung mit brauchwasserkreislauf.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8801800 1988-02-16
FR8801800A FR2627266B1 (fr) 1988-02-16 1988-02-16 Installation de chauffage central avec circuit d'eau chaude a usage sanitaire

Publications (2)

Publication Number Publication Date
EP0329508A1 EP0329508A1 (de) 1989-08-23
EP0329508B1 true EP0329508B1 (de) 1992-03-18

Family

ID=9363286

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89400269A Expired - Lifetime EP0329508B1 (de) 1988-02-16 1989-01-31 Zentralheizung mit Brauchwasserkreislauf

Country Status (12)

Country Link
US (1) US4946098A (de)
EP (1) EP0329508B1 (de)
JP (1) JP2719171B2 (de)
KR (1) KR960006266B1 (de)
AT (1) ATE73918T1 (de)
CA (1) CA1320937C (de)
DE (1) DE68900993D1 (de)
ES (1) ES2030276T3 (de)
FR (1) FR2627266B1 (de)
GR (1) GR3004307T3 (de)
IE (1) IE63734B1 (de)
PT (1) PT89711B (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2681670B1 (fr) * 1991-09-19 1993-12-03 Elm Leblanc Echangeur mixte chauffage-eau chaude, a serpentin de rechauffage sanitaire sans soudure.
EP0533554B1 (de) * 1991-09-19 1995-01-18 E.L.M. Leblanc Kombinierter Wärmetauscher für Heizung und Brauchwasser mit nahtloserer Rohrwendel für die Brauchwasserheizung
US6557774B1 (en) 1999-10-12 2003-05-06 Gregory A. Krueger Non-pressurized space heating system and apparatus
CN101738122B (zh) * 2009-12-14 2011-12-21 杭州沈氏换热器有限公司 一种盘管及具有该盘管的换热器
NL2011539C2 (nl) * 2013-10-02 2015-04-07 Intergas Heating Assets B V Warmtewisselaar met een buis met een althans gedeeltelijk variabele doorsnede.
US20160341483A1 (en) * 2014-07-13 2016-11-24 Guntner U.S. Llc Heat Exchange Device with Variable Tube Material
CN105241285B (zh) * 2015-10-31 2017-08-25 青岛恒泰散热器有限公司 超导暖气片

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2452391A (en) * 1946-01-18 1948-10-26 Nat Radiator Company Heat exchanger
CH433653A (de) * 1964-11-19 1967-04-15 Runtaltherm Ag Verfahren zur wahlweisen Erwärmung von Flüssigkeiten sowie Einrichtung zur Durchführung dieses Verfahrens
FR1484821A (fr) * 1966-05-06 1967-06-16 Daniel Sa Des Ets échangeur de chaleur pour chaudières de chauffage central comprenant un circuit d'eau de chauffage et un circuit d'eau chaude sanitaire
DE1274310B (de) * 1966-07-01 1968-08-01 Runtaltherm A G Umlauferhitzer mit Brauchwasserbereitung
DE2742839A1 (de) * 1977-09-23 1979-04-05 Bosch Gmbh Robert Waermeuebertrager fuer einen gas- oder oelbeheizten durchlauf-wassererhitzer

Also Published As

Publication number Publication date
EP0329508A1 (de) 1989-08-23
PT89711B (pt) 1994-01-31
DE68900993D1 (de) 1992-04-23
ATE73918T1 (de) 1992-04-15
JPH01252863A (ja) 1989-10-09
CA1320937C (fr) 1993-08-03
PT89711A (pt) 1989-10-04
GR3004307T3 (de) 1993-03-31
ES2030276T3 (es) 1992-10-16
US4946098A (en) 1990-08-07
FR2627266B1 (fr) 1990-06-01
FR2627266A1 (fr) 1989-08-18
KR960006266B1 (ko) 1996-05-13
IE890476L (en) 1989-08-16
KR890013432A (ko) 1989-09-23
JP2719171B2 (ja) 1998-02-25
IE63734B1 (en) 1995-06-14

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