EP0775876B1 - Corps de chauffe mixte à serpentin à section droite complexe - Google Patents
Corps de chauffe mixte à serpentin à section droite complexe Download PDFInfo
- Publication number
- EP0775876B1 EP0775876B1 EP96402475A EP96402475A EP0775876B1 EP 0775876 B1 EP0775876 B1 EP 0775876B1 EP 96402475 A EP96402475 A EP 96402475A EP 96402475 A EP96402475 A EP 96402475A EP 0775876 B1 EP0775876 B1 EP 0775876B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- elements
- heat exchanger
- tubes
- pipes
- semi
- 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
Links
- 238000010438 heat treatment Methods 0.000 claims abstract description 45
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000008236 heating water Substances 0.000 claims abstract description 9
- 239000002184 metal Substances 0.000 claims abstract 2
- 229910052751 metal Inorganic materials 0.000 claims abstract 2
- 238000005219 brazing Methods 0.000 claims description 16
- 238000004519 manufacturing process Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 238000005452 bending Methods 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 230000007935 neutral effect Effects 0.000 claims description 3
- 229910000679 solder Inorganic materials 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims 2
- 238000005476 soldering Methods 0.000 claims 2
- 238000007493 shaping process Methods 0.000 claims 1
- 208000031968 Cadaver Diseases 0.000 description 7
- 238000003466 welding Methods 0.000 description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000003517 fume Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- QEVHRUUCFGRFIF-MDEJGZGSSA-N reserpine Chemical compound O([C@H]1[C@@H]([C@H]([C@H]2C[C@@H]3C4=C(C5=CC=C(OC)C=C5N4)CCN3C[C@H]2C1)C(=O)OC)OC)C(=O)C1=CC(OC)=C(OC)C(OC)=C1 QEVHRUUCFGRFIF-MDEJGZGSSA-N 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000013529 heat transfer fluid Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
Images
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
- F28D7/0066—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
- 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
- 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
- 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
- F28D7/10—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
- F28D7/106—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 consisting of two coaxial conduits or modules of two coaxial conduits
-
- 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
Definitions
- the present invention relates to improvements made to the heating bodies of boilers, especially gas central heating.
- These boilers for domestic or industrial use must provide the user with both hot water sanitary whose temperature must not exceed 65 ° C, that the heating hot water which is circulated in a closed circuit within the central heating network of the house.
- These heaters are commonly called mixed heaters because they have two water circuits separate, one for domestic water, the other for domestic water heating, which are joined together so that that there is an intimate thermal contact between them.
- these are tubular circuits arranged one inside the other, and comprising either means for making the thermal bridges between the two circuits, either separate tubular circuits but flattened and pushed together.
- These bodies of heaters also have a bundle of fins responsible for transmitting to the tubular circuits, the flow thermal transported by the fumes resulting from the combustion within a partially placed burner lower part of the heating body.
- EP-A-0 401 543 describes a heat exchanger, in particular for water heaters with liquid or gaseous fuel, comprising at least one external tube carrying a heat transfer fluid and containing at least one internal tube smaller diameter carrying a second fluid heat exchanger in heat exchange with the first, as well only means for ensuring a play-free support of the tube internal against the external tube.
- a main constraint that acts on this type of exchanger mainly lies in the fact that the different water circuits circulate alternately. Each of the circuits in circulation must be capable to evacuate all the calories present in the smoke, without the other stagnant circuit rising excessively in temperature or pressure.
- the present invention therefore aims to overcome these disadvantages, by proposing a heating body which has both a water heating circuit sanitary and a central heating water circuit, these circuits being nested one inside the other but having optimization of flows and heat exchanges within the exchanger.
- the invention is secondly aimed at a mixed heating body obtained by implementing the process specified above and having the characteristics defined in claim 7.
- the heating body mixed 1 comprises a plurality first elements 2 produced in the form of a tube of circular or oval cross section, within which a plurality of second elements 3 are incorporated in the form of a cross-section tube complex, such as in particular in cross, in X, in Y.
- the first element 2 constitutes the heating circuit, the heating water circulates in the delimited sections between the outer walls 4 of the cross section tube complex and the inner wall 5 of the first element 2.
- the second element 3 constitutes the heating circuit sanitary, sanitary water flows inside the complex cross section.
- the mounting of the second element 3 in the first element 2 delimits a plurality of contact generators 6 between the tube complex cross section 3 and the outer tube 2; these contact generators 6 are made integral with the level of the first 2 and second elements 3 by through known means such as in particular by a brazing or welding operation, in order to carry out at the level of these generators thermal bridges.
- the complex profile of the second element 3 guarantees that it has an exchange surface sufficient to allow all of the thermal power delivered by the burner 7, positioned in its lower part.
- the particular arrangement between the first 2 and second 3 elements ensures that during operation in central heating, the channel wall temperature peripherals 8 - these being delimited by the first element and the connection zones of the second element - reached at the level of their wet section a homogeneous temperature and very close to that of the first element, which achieves, thanks to the coefficient of high exchange and with a large developed surface, the level of efficiency on the heating side required by standards.
- a central heating boiler fitted with a body of mixed heater 1 according to the invention require size the circulator as accurately as possible or the accelerator mounted on the heating circuit.
- the power of the latter is calculated so as to compensate for the hydraulic head losses of the assembly of the circuit.
- pressure losses we notes these at the piping and radiators constituting the heating installation central, but also at the boiler and all particularly at the level of the heating body, mainly on the pipes forming the first 2 and second 3 elements.
- first 2 and second 3 elements whose diameter hydraulics is optimized to reduce the size of the heating body 1, generate the major part of the hydraulic head losses and, in order to minimize the installed power of the circulator, the first 2 elements of the central heating circuit are connected to nurses 9, 10 arranged on the side and on the other side of the exchanger.
- these half-shells 11, 12 are produced directly by stamping a metallic foil, it being understood that there are two different matrices respectively depending on obtaining an upper half-shell and a half-shell lower.
- the various elements are produced separately, in particular by stamping, and are rendered united by a second operation consisting of example in a welding or brazing phase.
- the exchangers are ready to supply the boiler assembly line without use of subsequent steps to assemble fittings, various elbows, manifolds ...
- the so-called “strong” brazing step is replaced by a so-called “soft” brazing step, consisting essentially in a tinning phase by soaking.
- the 1 whole heating element is soaked in a tin bath so as to have, on the one hand a tin film which protects the heat exchanger against corrosion and other share, keeping the building material from the whole, like copper, its work hardened, to avoid to the fins 16 to deform easily during manipulations.
- the heating body as described above allows a perfect heat exchange between the fluids contained in the two circuits, via a surface significant exchange between the conduits, obtained thanks to their relative provision.
Landscapes
- 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)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Geometry (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Details Of Fluid Heaters (AREA)
- Resistance Heating (AREA)
- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
- Finger-Pressure Massage (AREA)
Description
- Une première étape consistant à réaliser deux demi-coquilles, chaque demi-coquille comportant essentiellement une pluralité de premiers éléments s'étendant sous la forme de tubes semi-cylindriques ou semi-ovales, préférentiellement au nombre de cinq à huit, disposés en parallèle et reliés à chacune de leurs extrémités à une nourrice, ces divers éléments étant réalisés selon le cas, en cuivre ou en acier inoxydable.
- Une deuxième étape consistant en la fabrication des seconds éléments destinés à la circulation de l'eau du circuit de chauffage sanitaire.
- Une troisième étape consistant à disposer, au sein des demi-coquilles constituées essentiellement de premiers éléments reliés à leurs extrémités à des nourrices le serpentin de seconds éléments.
- Une quatrième étape consistant à interposer entre les plans de joints délimités par les demi-coquilles inférieure et supérieure, des baguettes de brasure et à placer au-dessus des tubes cylindriques ou ovales des premiers éléments, une pluralité d'ailettes, et à ramener les bords rabattus des ailettes initialement perpendiculaires au-dessus des tubes de manière à conformer un corps de chauffe mixte manipulable, mécaniquement solidaire.
- Une cinquième étape consistant à positionner à la base des ailettes et au contact des premiers éléments formant le corps de chauffe, des baguettes de brasure et à disposer l'ensemble dans un four de brasage fonctionnant avantageusement sous atmosphère neutre ou réductrice.
- La figure 1 est une vue en perspective et en écorché, illustrant le montage dans une chaudière murale d'un corps de chauffe mixte selon l'invention ;
- La figure 2 est une vue en perspective d'un corps de chauffe mixte selon l'invention ;
- la figure 3 est une vue en coupe, en élévation latérale, d'un corps de chauffe mixte selon l'invention ;
- la figure 4 est une vue en coupe, en élévation frontale, de la figure 3.
- Une première étape qui consiste à réaliser deux demi-coquilles 11, 12. Chaque demi-coquille 11, 12 comporte essentiellement une pluralité de premiers éléments 2 s'étendant sous la forme de tubes semi-cylindriques ou semi-ovales, préférentiellement au nombre de cinq à huit, disposés en parallèle et reliés à chacune de leurs extrémités à une nourrice 9, 10. Ces divers éléments sont réalisés selon le cas, en cuivre ou en acier inoxydable.
- Une deuxième étape consistant en la fabrication des seconds éléments 3 destinés à la circulation de l'eau du circuit de chauffage sanitaire.
- Une troisième étape consiste à disposer, au sein des demi-coquilles 11, 12 constituées essentiellement de premiers éléments 2 reliés à leurs extrémités à des nourrices 9, 10, le serpentin de seconds éléments 3.
- Une quatrième étape consiste à interposer entre les plans de joints 14 délimités par les demi-coquilles 11, 12 inférieure et supérieure, des baguettes de brasure 15 et à placer au-dessus des tubes cylindriques ou ovales des premiers éléments 1, une pluralité d'ailettes 16, et à ramener les bords rabattus des ailettes initialement perpendiculaires au-dessus des tubes de manière à conformer un corps de chauffe mixte 1 manipulable, mécaniquement solidaire.
- Une cinquième étape consiste à positionner à la base des ailettes 16 et au contact des premiers éléments 2 formant le corps de chauffe, des baguettes de brasure et à disposer l'ensemble dans un four de brasage fonctionnant avantageusement sous atmosphère neutre ou réductrice.
Claims (10)
- Procédé d'élaboration d'un corps de chauffe mixte, caractérisé en ce qu'il comporte :Une première étape consistant à réaliser deux demi-coquilles (11, 12), chaque demi-coquille (11, 12) comportant essentiellement une pluralité de premiers éléments (2) s'étendant sous la forme de tubes semi-cylindriques ou semi-ovales, préférentiellement au nombre de cinq à huit, disposés en parallèle et reliés à chacune de leurs extrémités à une nourrice (9, 10), ces divers éléments étant réalisés selon le cas, en cuivre ou en acier inoxydable.Une deuxième étape consistant en la fabrication des seconds éléments (3) destinés à la circulation de l'eau du circuit de chauffage sanitaire.Une troisième étape consistant à disposer, au sein des demi-coquilles (11, 12) constituées essentiellement de premiers éléments (2) reliés à leurs extrémités à des nourrices (9, 10) le serpentin de seconds éléments (3).Une quatrième étape consistant à interposer entre les plans de joints (14) délimités par les demi-coquilles (11, 12) inférieure et supérieure, des baguettes de brasure (15) et à placer au-dessus des tubes cylindriques ou ovales des premiers éléments (2), une pluralité d'ailettes (16), et à ramener les bords rabattus des ailettes initialement perpendiculaires au-dessus des tubes de manière à conformer un corps de chauffe mixte (1) manipulable, mécaniquement solidaire.Une cinquième étape consistant à positionner à la base des ailettes (16) et au contact des premiers éléments (2) formant le corps de chauffe, des baguettes de brasure et à disposer l'ensemble dans un four de brasage fonctionnant avantageusement sous atmosphère neutre ou réductrice.
- Procédé d'élaboration d'un corps de chauffe mixte selon la revendication 1, caractérisé en ce que l'étape de brasage dit "fort" est remplacée par une étape de brasage dit "doux", consistant essentiellement en une phase d'étamage par trempage.
- Procédé d'élaboration selon l'une des revendications 1 ou 2, caractérisé en ce que les ailettes (16) séparées sont remplacées par des ailettes sous forme d'accordéon.
- Procédé d'élaboration selon l'une quelconque des revendications 1 à 3, caractérisé en ce que les demi-coquilles (11, 12) sont réalisées directement par emboutissage d'une feuille métallique.
- Procédé d'élaboration selon l'une quelconque des revendications 1 à 4, caractérisé en ce que les premiers éléments (2) semi-cylindriques ou semi-ovales et les demi-nourrices latérales (9, 10) sont élaborés séparément, notamment par emboutissage, et sont rendus solidaires par une seconde opération consistant en une phase de soudage ou de brasage.
- Procédé d'élaboration d'un corps de chauffe selon l'une quelconque des revendications 1 à 5, caractérisé en ce que les seconds éléments (3), dont la section droite est complexe, notamment de profil cruciforme, sont obtenus à partir de tubes cylindriques livrés en couronne, par un cycle soit de profilage en croix puis cintrage de ces derniers de manière à conformer une succession d'épingles formant un serpentin, soit de cintrage de tube cylindrique suivi d'une étape d'hydroformage.
- Corps de chauffe mixte (1) obtenu par la mise en oeuvre selon l'une quelconque des revendications 1 à 6, comportant un circuit de chauffage sanitaire et un circuit de chauffage central, ces derniers étant disposés l'un à l'intérieur de l'autre, comprenant des demi-coquilles supérieure et inférieure (11, 12) comportant chacune une pluralité de premiers éléments (2) pour le circuit de chauffage central, reliés par leurs extrémités à des nourrices (9, 10) et au sein desquels serpente une pluralité de seconds éléments (3), destinés au circuit de chauffage sanitaire, ces seconds éléments (3) débouchant également dans lesdites nourrices (9, 10), l'eau de chauffage circulant dans les sections délimitées entre les parois extérieures (4) du tube formant les seconds éléments (3) et la paroi intérieure (5) des premiers éléments (2), caractérisé en ce que les demi-coquilles (11, 12) inférieure et supérieure formant les premiers éléments (2) qui s'étendent sous la forme de tubes semi-cylindriques ou semi-ovales, diffèrent l'une de l'autre principalement en ce que l'une d'elles dispose sur la paroi externe des nourrices latérales (9, 10), d'orifices (13) permettant la connexion aux divers circuits de chauffage sanitaire et de chauffage central.
- Corps de chauffe mixte selon la revendication 7, caractérisé en ce que les seconds éléments (3) se présentent sous la forme de tubes de section droite complexe, telle que notamment en croix, en X, en Y.
- Corps de chauffe mixte selon l'une des revendications 7 ou 8, caractérisé en ce que le profil complexe des seconds éléments (3) garantit que celui-ci dispose d'une surface d'échange suffisante pour permettre d'évacuer la totalité de la puissance thermique délivrée par le brûleur (7), positionné dans sa partie inférieure.
- Corps de chauffe mixte selon l'une quelconque des revendications 7 à 9, caractérisé en ce que la circulation de l'eau de chauffage central s'effectue en parallèle au sein des nourrices (9, 10), de manière à garantir un débit identique dans chacun des canaux (8), la circulation de l'eau sanitaire étant réalisée en série et successivement au sein de la pluralité des seconds éléments (3).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9513805 | 1995-11-21 | ||
FR9513805A FR2741426B1 (fr) | 1995-11-21 | 1995-11-21 | Corps de chauffe mixte a serpentin a section droite complexe |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0775876A1 EP0775876A1 (fr) | 1997-05-28 |
EP0775876B1 true EP0775876B1 (fr) | 2001-07-18 |
Family
ID=9484775
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96402475A Expired - Lifetime EP0775876B1 (fr) | 1995-11-21 | 1996-11-18 | Corps de chauffe mixte à serpentin à section droite complexe |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0775876B1 (fr) |
AT (1) | ATE203317T1 (fr) |
DE (1) | DE69613944T2 (fr) |
ES (1) | ES2159001T3 (fr) |
FR (1) | FR2741426B1 (fr) |
PT (1) | PT775876E (fr) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE29800981U1 (de) * | 1998-01-22 | 1999-05-20 | Robert Bosch Gmbh, 70469 Stuttgart | Wärmeübertrager für brennstoffbeheizte Wassererhitzer, insbesondere für Brennwertgeräte |
IT1321119B1 (it) * | 2000-12-20 | 2003-12-30 | Merloni Termosanitari Spa | Scambiatore di calore bitermico, in particolare per caldaie acondensazione. |
EP1235039A3 (fr) * | 2001-02-23 | 2004-03-03 | Metech S.r.l. | Echangeur de chaleur à spirale constitué d'un élément tubulaire à section en forme de goutte |
ATE496270T1 (de) * | 2008-08-07 | 2011-02-15 | Giannoni S P A | Bithermaler wärmetauscher und seine herstellung |
CN103438737B (zh) * | 2013-09-08 | 2015-04-08 | 张伟 | 壳体储水暖气管分流导热换热器 |
AT15165U1 (de) * | 2013-12-12 | 2017-01-15 | Tomton S R O | Vorrichtung zum Heizen und Kühlen, insbesondere für eine Warmwasser-Zentralheizung |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR786832A (fr) * | 1934-05-29 | 1935-09-10 | Perfectionnements apportés aux échangeurs de température | |
JPS52124346U (fr) * | 1976-03-19 | 1977-09-21 | ||
DE3320265A1 (de) * | 1983-06-04 | 1984-12-06 | Heinrich Dr.-Ing. 4290 Bocholt Hampel | Doppelrohrwaermetauscher |
DE8911236U1 (de) * | 1989-06-08 | 1990-10-04 | Robert Bosch Gmbh, 7000 Stuttgart | Wärmeübertrager, insbesondere für einen gas- oder ölbeheizten Wassererhitzer |
-
1995
- 1995-11-21 FR FR9513805A patent/FR2741426B1/fr not_active Expired - Fee Related
-
1996
- 1996-11-18 AT AT96402475T patent/ATE203317T1/de not_active IP Right Cessation
- 1996-11-18 DE DE69613944T patent/DE69613944T2/de not_active Expired - Fee Related
- 1996-11-18 ES ES96402475T patent/ES2159001T3/es not_active Expired - Lifetime
- 1996-11-18 EP EP96402475A patent/EP0775876B1/fr not_active Expired - Lifetime
- 1996-11-18 PT PT96402475T patent/PT775876E/pt unknown
Also Published As
Publication number | Publication date |
---|---|
EP0775876A1 (fr) | 1997-05-28 |
ES2159001T3 (es) | 2001-09-16 |
ATE203317T1 (de) | 2001-08-15 |
DE69613944D1 (de) | 2001-08-23 |
FR2741426A1 (fr) | 1997-05-23 |
FR2741426B1 (fr) | 1998-01-23 |
DE69613944T2 (de) | 2002-01-10 |
PT775876E (pt) | 2001-11-30 |
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