EP1290380A1 - Heating unit for heat-conveying medium for central heating installation - Google Patents

Heating unit for heat-conveying medium for central heating installation

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Publication number
EP1290380A1
EP1290380A1 EP01937884A EP01937884A EP1290380A1 EP 1290380 A1 EP1290380 A1 EP 1290380A1 EP 01937884 A EP01937884 A EP 01937884A EP 01937884 A EP01937884 A EP 01937884A EP 1290380 A1 EP1290380 A1 EP 1290380A1
Authority
EP
European Patent Office
Prior art keywords
heating unit
unit according
interior partition
heating
partition
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
EP01937884A
Other languages
German (de)
French (fr)
Other versions
EP1290380B1 (en
EP1290380B8 (en
Inventor
Ernest Doclo
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.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP1290380A1 publication Critical patent/EP1290380A1/en
Publication of EP1290380B1 publication Critical patent/EP1290380B1/en
Application granted granted Critical
Publication of EP1290380B8 publication Critical patent/EP1290380B8/en
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
    • F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
    • F24H1/225—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating electrical central heating boilers
    • 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
    • F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
    • F24H1/101—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium using electric energy supply
    • F24H1/102—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium using electric energy supply with resistance

Definitions

  • the invention relates to a heat carrier fluid heating unit for central heating installation.
  • a central heating installation comprises a pipe circuit in which one or more radiators or convectors are connected, at least one expansion device and at least one heating station capable of heating the heat transfer fluid which is made circulate in the circuit.
  • the heating station of the installation can in particular be a coal, gas or oil boiler, and there are also electric heating stations.
  • the object of the present invention is to provide a central heating installation in which the heating station consists of one or more electric heating units of simple and compact structure, and allowing efficient and flexible operation of the installation.
  • the present invention relates to a central heating heat transfer fluid heating unit.
  • This heating unit consists of a tank comprising a tubular outer wall, a first end wall and a second end wall, these walls defining a substantially cylindrical space.
  • a first inner tubular partition and a second inner tubular partition, substantially concentric with the outer tubular wall, are mounted in the reservoir, the second inner partition having a diameter smaller than that of the first tubular partition.
  • a first annular space is located between the tubular outer wall and the first interior partition; a second annular space is located between the first interior partition and the second interior partition; a central channel is located at the interior of the second interior partition.
  • the second annular space is in communication with the central channel near the first end wall and in communication with the first annular space near the second end wall.
  • the reservoir is provided with an inlet orifice opening into the first annular space close to the first end wall and an outlet orifice, in the second end wall, opening out from the central channel.
  • At least one electric immersion heater is mounted in the central channel.
  • At least one thermostatic probe is mounted in the tank.
  • the components of the heating unit are preferably made of metal.
  • tubular outer wall, the first and second end walls and the first interior partition may in particular be made of steel.
  • the second interior partition can also be made of steel.
  • this second interior partition is made of copper.
  • the heating unit comprises, in said second annular space, heat transfer elements integral with said second external partition.
  • These heat transfer elements may in particular consist of two rings spaced from one another, integral with said second interior partition and arranged perpendicular to the axis thereof, these two rings being pierced with several holes and being connected between them at. by means of several metal bars spaced from each other.
  • these metal bars advantageously have a ribbed outer surface.
  • these metal bars can also carry fins.
  • Said heat transfer elements are made of a material having good conductivity.
  • the two rings between which the metal bars are mounted can be made of steel, but they are advantageously made of copper.
  • the metal bars themselves are preferably made of copper.
  • At least one thermostatic probe is mounted in the tank. To ensure greater operational safety, it may be desirable for two thermostatic sensors to be mounted in the tank. According to a particular embodiment, this probe or these thermostatic probes are mounted in the second annular space.
  • the first annular space is placed in communication with the second annular space. Thanks to several openings distributed around the periphery of said first interior partition, near the second end wall.
  • near the second end wall here means that the distance between these openings and the second end wall is significantly smaller (for example, at least four times smaller) than the distance of these openings and the first end wall.
  • a ring can be mounted in the first annular space, between the tubular outer wall and the first interior partition.
  • This ring which (in the axial direction) is pierced with several holes distributed along its periphery, is located at an intermediate level between the inlet opening of the tank and the openings which are formed in said first intermediate partition.
  • the communication of the second annular space with the central channel is advantageously ensured by the fact that a spaced is formed between the second interior partition and the first end wall.
  • the inlet opening of the reservoir is formed in the tubular outer wall, near the first end wall. This orifice thus opens radially into the first annular space.
  • the reservoir is preferably provided with means making it possible to fix it on a support.
  • two electric immersion heaters are mounted in the central channel of the heating unit.
  • the present invention also relates to a central heating installation with heat transfer fluid, comprising a piping circuit in which one or more radiators or convectors are connected, at least one circulation pump, at least one expansion device and at least one heating unit, this installation comprising at least one room thermostat.
  • this installation is connected at least one heating unit according to the invention, the installation comprising, in addition, an automated control station capable of receiving the signals from the room thermostat (s) and the probe (s). thermoplastics of the heating unit (s), and to control the starting and stopping of operation of the circulation pump (s) and the immersion heater (s) of the heating unit (s).
  • the heating installation according to the invention may possibly comprise two or more heating units according to the invention, these heating units then being connected in parallel in the circuit.
  • the heat transfer fluid which circulates in the installation is preferably oil and, more particularly a mineral oil specially designed for the transfer of calories.
  • the heating unit or units connected in the circuit are preferably able to heat the heat-transfer fluid to a temperature above 100 ° C.
  • the installation can in particular be adjusted in such a way that the temperature of the heat-transfer fluid (in particular, the oil) is limited to a temperature of between 105 ° and 110 ° C., at the outlet of the heating unit or units.
  • the temperature of the heat-transfer fluid in particular, the oil
  • the temperature of the heat-transfer fluid is limited to a temperature of between 105 ° and 110 ° C., at the outlet of the heating unit or units.
  • FIG. 1 is an axial sectional view of the heating unit
  • Fig. 2 is a cross section of the heating unit along the line II-II of FIG. 1
  • Fig. 3 is a cross section of the heating unit along the line III-III of FIG. 1.
  • the heating unit consists of a tank comprising a tubular exterior wall 1, a first end wall 2 and a second end wall 3.
  • a first tubular interior partition 4, concentric with the exterior wall 1, is mounted in the tank.
  • a second tubular internal partition 5, also concentric with the external wall 1, is mounted inside the first partition 4.
  • a first annular space 6 is thus located between the outer wall 1 and the first interior partition 4 and a second space 4 and the second interior partition 5.
  • a central channel 8 is located inside the second tubular interior partition 5.
  • first end wall 2 is in fact formed, essentially, by a ring 9 welded between the tubular elements which respectively form the external wall 1 and the first internal partition 4 and by a ring 10 welded between the tubular elements which respectively form the first interior partition 4 and the second interior partition 5.
  • the second end wall is formed, essentially, by a ring 11 welded between the tubular elements which respectively form the outer wall 1 and the first interior partition 4 and by a ring 12 welded between the tubular elements which respectively form the first partition 4 and the second inner partition 5.
  • the reservoir is provided with an inlet orifice which consists of a tube 13 welded to the outer wall 1 and opening into the first annular space 6, near the first end wall 2.
  • the reservoir is also provided with an outlet orifice which opens out from the central channel 8 and which consists of a tube 14 welded into the ring 12 (which is a constituent element of the second end wall 3).
  • the second internal partition 5 externally carries three rings 15, 16, 17, the external diameter of which is equal (or slightly less) to the internal diameter of the first internal partition 4.
  • the ring 15, which is located closest to the second end wall 3, is connected to the ring 12 by two thimbles 18.
  • Two thermostatic probes 19 passing through orifices provided for this purpose in the ring 12, and by the said thimbles 18, are mounted in the second annular space 7.
  • the connectors and electrical wires which allow these thermostatic probes 19 to be connected to a control station are not shown.
  • the other two rings 16 and 17 are spaced from one another and connected to each other by means of twelve copper bars 20 regularly spaced from one another.
  • the rings 16 and 17 are each pierced with twelve holes 21 which are angularly offset with respect to the bars 20, as can be seen in FIG. 3.
  • Twelve holes 22 are provided in the first interior partition 4, near the second end wall 3. These holes 22 which are regularly distributed around the periphery of the first tubular interior partition 4, put the first annular space 6 in communication with the second annular space 7.
  • a ring 23 pierced with eight holes 24 is mounted between the outer wall 1 and the first interior partition 4, at an intermediate level between the inlet pipe 13 and the holes 22 which are formed in the first interior partition 4.
  • this ring 23 pierced with holes 24 regulates the flow of heat-transfer fluid which enters through the tube 13 and which rises towards the holes 22.
  • a space is provided between the second interior partition 5 and the first end wall 2, which puts the second annular space 7 in communication with the central channel 8.
  • Two electric immersion heaters 25 are located in the central channel 8. These immersion heaters 25 are fixed in a base 26 which is screwed into the ring 10, a bridge 27 ensuring the tightness of the assembly.
  • Connectors 28 allow the immersion heaters 25 to be connected to power supply cables.
  • the heat transfer fluid When passing through the central channel 8, the heat transfer fluid is in direct contact with immersion heaters 25 which bring it to the desired temperature. However, thanks to the thermal conductivity of the interior partitions 4 and 5, the heat transfer fluid is already preheated during its passage in the first annular space 6 and then especially during its passage in the second annular space 7 in which it enters contact not only with the second intermediate partition 5 but also with the heat transfer elements 16, 17 and 20.
  • a heating unit as described is intended to be connected to the piping circuit of a central heating installation.
  • the pipe circuit of such an installation are generally connected several radiators, at least one heating unit, at least one circulation pump and at least one expansion device.
  • the installation also comprises at least one room thermostat and an automated control station capable of receiving signals from the room thermostats and from the heating unit (or heating units) , and to control the starting and stopping of operation of the circulation pump (or of the circulation pumps) and of the immersion heater (s) of the heating unit (or of the heating units).
  • the heating capacity of a heating unit obviously depends on the power of the immersion heater (s) mounted in unit.
  • the choice of appropriate power immersion heaters makes it possible to meet a desired heating capacity.
  • the installation control station can then be programmed so that, depending on the heating requirement, one or two immersion heaters from one or more heating units are put into operation.
  • the control station is also programmed so that the heating unit (s) can only operate when the circulation pump (s) are running.
  • the heating units according to the invention are very compact, are of very simple construction, and allow great flexibility of operation of the installation in which they are connected.
  • the heat transfer fluid that is circulated in the installation is preferably mineral oil for transfer of calories. This makes it possible in particular to heat the heat transfer fluid to a temperature above 100 ° C., and this remains possible, without problem, even at high altitude, in mountainous regions.
  • a heating unit according to the invention is a compact device which contains only a small volume of heat transfer fluid and which, therefore, has a low thermal inertia. If the radiators or convectors installed in the installation are of the type with a large radiation surface and low internal volume, the installation as a whole will have low thermal inertia, which constitutes a real advantage.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices For Use In Laboratory Experiments (AREA)
  • Resistance Heating (AREA)
  • Tunnel Furnaces (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (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)
  • Steam Or Hot-Water Central Heating Systems (AREA)
  • Central Heating Systems (AREA)
  • Control Of Resistance Heating (AREA)

Abstract

The invention concerns a heating unit comprising a tubular wall (1) and first and second end walls (2, 3). A first annular space (6) is located between the tubular wall (1) and a first tubular partition (4). A second annular space (7) is located between the first partition (4) and a second tubular partition (5) inside the first partition (4). An immersion heater (25) is mounted in the central channel (8) formed by the second partition (5). The second space (7) communicates with the central channel (8) near the first end wall (2) and with the first space (6) near the second end wall (3). An intake orifice (13) emerges into the first space (6) near the first end wall (2) and an outlet (14), in the second end wall (3) emerges into the central channel (8).

Description

Unité de chauffage de fluide caloporteur pour installation de chauffage centralHeat transfer fluid heating unit for central heating installation
L'invention concerne une unité de chauffage de fluide calo- porteur pour installation de chauffage central.The invention relates to a heat carrier fluid heating unit for central heating installation.
De manière générale, une installation de chauffage central comprend un circuit de canalisations dans lequel sont branchés un ou plusieurs radiateurs ou convecteurs, au moins un dispositif d'expansion et au moins un poste de chauffage apte à chauffer le fluide caloporteur que l'on fait circuler dans le circuit.In general, a central heating installation comprises a pipe circuit in which one or more radiators or convectors are connected, at least one expansion device and at least one heating station capable of heating the heat transfer fluid which is made circulate in the circuit.
Le poste de chauffage de l'installation peut notamment être une chaudière au charbon, au gaz ou au mazout, et il existe également des postes de chauffage électriques.The heating station of the installation can in particular be a coal, gas or oil boiler, and there are also electric heating stations.
Le but de la présente invention est de réaliser une instal- lation de chauffage central dans laquelle le poste de chauffage consisté en une ou plusieurs unités de chauffage électriques de structure simple et compacte, et permettant un fonctionnement efficace et souple de l'installation.The object of the present invention is to provide a central heating installation in which the heating station consists of one or more electric heating units of simple and compact structure, and allowing efficient and flexible operation of the installation.
La présente invention a pour objet une unité de chauffage de fluide caloporteur de chauffage central. Cette unité de chauffage consiste en un réservoir comportant une paroi extérieure tubulaire, une première paroi d'extrémité et une seconde paroi d'extrémité, ces parois délimitant un espace en substance cylindrique. Une première cloison intérieure tubulaire et une seconde cloison intérieure tubulaire, en substance concentriques avec la paroi extérieure tubulaire, sont montées dans le réservoir, la seconde cloison intérieure ayant un diamètre plus petit que celui de la première cloison tubulaire. Un premier espace annulaire est situé entre la paroi extérieure tubulaire et la première cloison intérieure; un second espace annulaire est situé entre la première cloison intérieure et la seconde cloison intérieure; un canal central est situé à l'intérieur de la seconde cloison intérieure. Le second espace annulaire est en communication avec le canal central à proximité de la première paroi d'extrémité et en communication avec le premier espace annulaire à proximité de la seconde paroi d'extrémité. Le réservoir est muni d'un orifice d'entrée débouchant dans le premier espace annulaire à proximité de la première paroi d'extrémité et d'un orifice de sortie, dans la seconde paroi d'extrémité, débouchant du canal central. Au moins un thermoplongeur électrique est monté dans le canal central. Au moins une sonde thermostatique est montée dans le réservoir. Les éléments constitutifs de l'unité de chauffage sont de préférence faits en métal.The present invention relates to a central heating heat transfer fluid heating unit. This heating unit consists of a tank comprising a tubular outer wall, a first end wall and a second end wall, these walls defining a substantially cylindrical space. A first inner tubular partition and a second inner tubular partition, substantially concentric with the outer tubular wall, are mounted in the reservoir, the second inner partition having a diameter smaller than that of the first tubular partition. A first annular space is located between the tubular outer wall and the first interior partition; a second annular space is located between the first interior partition and the second interior partition; a central channel is located at the interior of the second interior partition. The second annular space is in communication with the central channel near the first end wall and in communication with the first annular space near the second end wall. The reservoir is provided with an inlet orifice opening into the first annular space close to the first end wall and an outlet orifice, in the second end wall, opening out from the central channel. At least one electric immersion heater is mounted in the central channel. At least one thermostatic probe is mounted in the tank. The components of the heating unit are preferably made of metal.
En particulier, la paroi extérieure tubulaire, les première et seconde parois d'extrémité et la première cloison intérieure peuvent notamment être faites en acier. La seconde cloison intérieure peut également être faite en acier. Suivant une autre forme d'exécution, cette seconde cloison intérieure est faite en cuivre.In particular, the tubular outer wall, the first and second end walls and the first interior partition may in particular be made of steel. The second interior partition can also be made of steel. According to another embodiment, this second interior partition is made of copper.
Suivant une forme d'exécution préférée, l'unité de chauffage comporte, dans ledit second espace annulaire, des éléments de transfert de chaleur solidaires de ladite seconde cloison extérieure.According to a preferred embodiment, the heating unit comprises, in said second annular space, heat transfer elements integral with said second external partition.
Ces éléments de transfert de chaleur peuvent notamment consister en deux anneaux espacés l'un de l'autre, solidaires de ladite seconde cloison intérieure et disposés perpendiculairement à l'axe de celle-ci, ces deux anneaux étant percés de plusieurs trous et étant raccordés entre eux au. moyen de plusieurs barres métalliques espacées l'une de l'autre.These heat transfer elements may in particular consist of two rings spaced from one another, integral with said second interior partition and arranged perpendicular to the axis thereof, these two rings being pierced with several holes and being connected between them at. by means of several metal bars spaced from each other.
De manière à présenter une grande surface de contact avec le fluide caloporteur qui les entoure, ces barres métalliques présentent avantageusement une surface extérieure nervurée. Pour la même raison, ces barres métalliques peuvent également porter des ailettes. Lesdits éléments de transfert de chaleur sont réalisés en un matériau ayant une bonne conductibilité. Les deux anneaux entre lesquels sont montés les barres métalliques peuvent être faits en acier, mais ils sont avantageusement faits en cuivre. Les barres métalliques elles- mêmes sont de préférence faites en cuivre.So as to have a large contact surface with the heat transfer fluid which surrounds them, these metal bars advantageously have a ribbed outer surface. For the same reason, these metal bars can also carry fins. Said heat transfer elements are made of a material having good conductivity. The two rings between which the metal bars are mounted can be made of steel, but they are advantageously made of copper. The metal bars themselves are preferably made of copper.
Comme déjà mentionné plus haut, au moins une sonde thermostatique est montée dans le réservoir. Pour assurer une plus grande sécurité de fonctionnement, il peut être souhaitable que deux sondes thermostatiques soient montées dans le réservoir. Suivant une forme d'exécution particulière, cette sonde ou ces sondes thermostatiques sont montées dans le second espace annulaire.As already mentioned above, at least one thermostatic probe is mounted in the tank. To ensure greater operational safety, it may be desirable for two thermostatic sensors to be mounted in the tank. According to a particular embodiment, this probe or these thermostatic probes are mounted in the second annular space.
Suivant une forme d'exécution préférée, le premier espace annulaire est mis en communication avec le second espace annulaire . grâce à plusieurs ouvertures réparties sur le pourtour de ladite première cloison intérieure, à proximité de la seconde paroi d'extrémité.According to a preferred embodiment, the first annular space is placed in communication with the second annular space. thanks to several openings distributed around the periphery of said first interior partition, near the second end wall.
L'expression "à proximité de la seconde paroi d'extrémité" signifie ici que la distance entre ces ouvertures et la seconde paroi d'extrémité est nettement plus petite (par exemple, au moins quatre fois plus petite) que la distance de ces ouvertures et la première paroi d'extrémité.The expression "near the second end wall" here means that the distance between these openings and the second end wall is significantly smaller (for example, at least four times smaller) than the distance of these openings and the first end wall.
De manière avantageuse, un anneau peut être monté dans le premier espace annulaire, entre la paroi extérieure tubulaire et la première cloison intérieure. Cet anneau qui (dans le sens axial) est percé de plusieurs trous répartis le long de son pourtour, est situé à un niveau intermédiaire entre l'orifice d'entrée du réservoir et les ouvertures qui sont ménagées dans ladite première cloison intermédiaire.Advantageously, a ring can be mounted in the first annular space, between the tubular outer wall and the first interior partition. This ring which (in the axial direction) is pierced with several holes distributed along its periphery, is located at an intermediate level between the inlet opening of the tank and the openings which are formed in said first intermediate partition.
La mise en communication du second espace annulaire avec le canal central, est avantageusement assurée par le fait qu'un espacé est ménagé entre la seconde cloison intérieure et la première paroi d'extrémité.The communication of the second annular space with the central channel is advantageously ensured by the fact that a spaced is formed between the second interior partition and the first end wall.
Suivant une forme d'exécution particulière, l'orifice d'entrée du réservoir est ménagé dans la paroi extérieure tubulaire, à proximité de la première paroi d'extrémité. Cet orifice débouche ainsi radialement dans le premier espace annulaire.According to a particular embodiment, the inlet opening of the reservoir is formed in the tubular outer wall, near the first end wall. This orifice thus opens radially into the first annular space.
Le réservoir est de préférence muni de moyens permettant de le fixer sur un support.The reservoir is preferably provided with means making it possible to fix it on a support.
Suivant une forme d'exécution avantageuse, deux thermo- plongeurs électriques sont montés dans le canal central de l'unité de chauffage.According to an advantageous embodiment, two electric immersion heaters are mounted in the central channel of the heating unit.
Lors du fonctionnement de l'installation de chauffage central dans laquelle est branchée l'unité de chauffage, un seul de ces thermoplongeurs ou les deux thermoplongeurs peuvent être mis en fonction- nement, suivant les circonstances et les besoins;During the operation of the central heating installation into which the heating unit is connected, only one of these immersion heaters or the two immersion heaters can be put into operation, depending on the circumstances and needs;
La présente invention a également pour objet une installation de chauffage central à fluide caloporteur, comportant un circuit de canalisations dans lequel sont branchés un ou plusieurs radiateurs ou convecteurs, au moins une pompe de circulation, au moins un dispositif d'expansion et au moins une unité de chauffage, cette installation comportant au moins un thermostat d'ambiance. Dans le circuit de cette installation est branchée au moins une unité de chauffage suivant l'invention, l'installation comportant, en outre, un poste de commande automatisé apte à recevoir les signaux du ou des thermostats d'ambiance et de la ou des sondes thermoplastiques de la ou des unités de chauffage, et à commander la mise en fonctionnement et l'arrêt de fonctionnement de la ou des pompes de circulation et du ou des thermoplongeurs de la ou des unités de chauffage.The present invention also relates to a central heating installation with heat transfer fluid, comprising a piping circuit in which one or more radiators or convectors are connected, at least one circulation pump, at least one expansion device and at least one heating unit, this installation comprising at least one room thermostat. In the circuit of this installation is connected at least one heating unit according to the invention, the installation comprising, in addition, an automated control station capable of receiving the signals from the room thermostat (s) and the probe (s). thermoplastics of the heating unit (s), and to control the starting and stopping of operation of the circulation pump (s) and the immersion heater (s) of the heating unit (s).
L'installation de chauffage suivant l'invention peut éventuel- lement comprendre deux ou plusieurs unités de chauffage suivant l'invention, ces unités de chauffage étant alors branchées en parallèle dans le circuit.The heating installation according to the invention may possibly comprise two or more heating units according to the invention, these heating units then being connected in parallel in the circuit.
Le fluide caloporteur qui circule dans l'installation est de préférence de l'huile et, plus particulièrement une huile minérale spécia- lement conçue pour le transfert de calories.The heat transfer fluid which circulates in the installation is preferably oil and, more particularly a mineral oil specially designed for the transfer of calories.
La ou les unités de chauffage branchées dans le circuit sont de préférence aptes à chauffer le fluide caloporteur à une température supérieure à 100°C.The heating unit or units connected in the circuit are preferably able to heat the heat-transfer fluid to a temperature above 100 ° C.
L'installation peut notamment être réglée de telle manière que la température du fluide caloporteur (en particulier, l'huile) soit limitée à une température comprise entre 105° et 110°C, à la sortie de la ou des unités de chauffage.The installation can in particular be adjusted in such a way that the temperature of the heat-transfer fluid (in particular, the oil) is limited to a temperature of between 105 ° and 110 ° C., at the outlet of the heating unit or units.
D'autres particularités et avantages de l'invention ressorti- ront de la description d'une unité de chauffage suivant l'invention, donnée à titre d'exemple non limitatif, référence étant faite aux dessins annexés, dans lesquels : la Fig. 1 est une vue en coupe axiale de l'unité de chauffage; la Fig. 2 est une coupe transversale de l'unité de chauffage suivant la ligne ll-ll de la Fig. 1 ; et la Fig. 3 est une coupe transversale de l'unité de chauffage suivant la ligne lll-lll de la Fig. 1. sOther features and advantages of the invention will emerge from the description of a heating unit according to the invention, given by way of nonlimiting example, reference being made to the appended drawings, in which: FIG. 1 is an axial sectional view of the heating unit; Fig. 2 is a cross section of the heating unit along the line II-II of FIG. 1; and Fig. 3 is a cross section of the heating unit along the line III-III of FIG. 1. s
L'unité de chauffage consiste en un réservoir comportant une paroi extérieure tubulaire 1, une première paroi d'extrémité 2 et une seconde paroi d'extrémité 3. Une première cloison intérieure tubulaire 4, concentrique avec la paroi extérieure 1, est montée dans le réservoir. Une seconde cloison intérieure tubulaire 5, également concentrique avec la paroi extérieure 1 , est montée à l'intérieur de la première cloison 4.The heating unit consists of a tank comprising a tubular exterior wall 1, a first end wall 2 and a second end wall 3. A first tubular interior partition 4, concentric with the exterior wall 1, is mounted in the tank. A second tubular internal partition 5, also concentric with the external wall 1, is mounted inside the first partition 4.
Un premier espace annulaire 6 est ainsi situé entre la paroi extérieure 1 et la première cloison intérieure 4 et un second espace 4 et la seconde cloison intérieure 5. Un canal central 8 est situé à l'intérieur de la seconde cloison intérieure tubulaire 5.A first annular space 6 is thus located between the outer wall 1 and the first interior partition 4 and a second space 4 and the second interior partition 5. A central channel 8 is located inside the second tubular interior partition 5.
On remarquera que la première paroi d'extrémité 2 est en fait formée, pour l'essentiel, par un anneau 9 soudé entre les éléments tubulaires qui forment respectivement la paroi extérieure 1 et la première cloison intérieure 4 et par un anneau 10 soudé entre les éléments tubulaires qui forment respectivement la première cloison intérieure 4 et la seconde cloison intérieure 5.It will be noted that the first end wall 2 is in fact formed, essentially, by a ring 9 welded between the tubular elements which respectively form the external wall 1 and the first internal partition 4 and by a ring 10 welded between the tubular elements which respectively form the first interior partition 4 and the second interior partition 5.
De manière analogue, la seconde paroi d'extrémité est formée, pour l'essentiel, par un anneau 11 soudé entre les éléments tubulaires qui forment respectivement la paroi extérieure 1 et la première cloison intérieure 4 et par un anneau 12 soudé entre les éléments tubulaires qui forment respectivement la première cloison 4 et la seconde cloison intérieure 5. Le réservoir est muni d'un orifice d'entrée qui consiste en une tubulure 13 soudée à la paroi extérieure 1 et débouchant dans le premier espace annulaire 6, à proximité de la première paroi d'extrémité 2.Similarly, the second end wall is formed, essentially, by a ring 11 welded between the tubular elements which respectively form the outer wall 1 and the first interior partition 4 and by a ring 12 welded between the tubular elements which respectively form the first partition 4 and the second inner partition 5. The reservoir is provided with an inlet orifice which consists of a tube 13 welded to the outer wall 1 and opening into the first annular space 6, near the first end wall 2.
Le réservoir est également muni d'un orifice de sortie qui débouche du canal central 8 et qui consiste en une tubulure 14 soudée dans l'anneau 12 (qui est un élément constitutif de la seconde paroi d'extrémité 3).The reservoir is also provided with an outlet orifice which opens out from the central channel 8 and which consists of a tube 14 welded into the ring 12 (which is a constituent element of the second end wall 3).
La seconde cloison intérieure 5 porte extérieurement trois anneaux 15,16, 17, dont le diamètre extérieure est égal (ou légèrement inférieur) au diamètre intérieur de la première cloison intérieure 4. L'anneau 15, qui est situé le plus près de la seconde paroi d'extrémité 3, est relié à l'anneau 12 par deux doigts-de-gant 18. Deux sondes thermostatiques 19 passant par des orifices ménagés à cet effet dans l'anneau 12, et par lesdits doigts-de-gant 18, sont montées dans le second espace annulaire 7. Les connecteurs et fils électriques qui permettent de raccorder ces sondes thermostatiques 19 à un poste de commande ne sont pas représentés.The second internal partition 5 externally carries three rings 15, 16, 17, the external diameter of which is equal (or slightly less) to the internal diameter of the first internal partition 4. The ring 15, which is located closest to the second end wall 3, is connected to the ring 12 by two thimbles 18. Two thermostatic probes 19 passing through orifices provided for this purpose in the ring 12, and by the said thimbles 18, are mounted in the second annular space 7. The connectors and electrical wires which allow these thermostatic probes 19 to be connected to a control station are not shown.
Les deux autres anneaux 16 et 17 sont espacés l'un de l'autre et reliés entre eux au moyen de douze barres de cuivre 20 régulièrement espacées l'une de l'autre. Les anneaux 16 et 17 sont chacun percés de douze trous 21 qui sont angulairement décalés par rapport aux barres 20, comme on peut le voir à la Fig. 3.The other two rings 16 and 17 are spaced from one another and connected to each other by means of twelve copper bars 20 regularly spaced from one another. The rings 16 and 17 are each pierced with twelve holes 21 which are angularly offset with respect to the bars 20, as can be seen in FIG. 3.
Douze trous 22 sont ménagés dans la première cloison intérieure 4, à proximité de la seconde paroi d'extrémité 3. Ces trous 22 qui sont régulièrement répartis sur le pourtour de la première cloison intérieure tubulaire 4, mettent en communication le premier espace annulaire 6 avec le second espace annulaire 7.Twelve holes 22 are provided in the first interior partition 4, near the second end wall 3. These holes 22 which are regularly distributed around the periphery of the first tubular interior partition 4, put the first annular space 6 in communication with the second annular space 7.
Un anneau 23 percé de huit trous 24 est monté entre la paroi extérieure 1 et la première cloison intérieure 4, à un niveau intermédiaire entre la tubulure d'entrée 13 et les trous 22 qui sont ménagés dans la première cloison intérieure 4. Lors du fonctionnement de l'unité de chauffage, cet anneau 23 percé de trous 24 régularise le flux de fluide caloporteur qui entre par la tubulure 13 et qui monte vers les trous 22. On notera qu'un espace est ménagé entre la seconde cloison intérieure 5 et la première paroi d'extrémité 2, ce qui met le second espace annulaire 7 en communication avec le canal central 8.A ring 23 pierced with eight holes 24 is mounted between the outer wall 1 and the first interior partition 4, at an intermediate level between the inlet pipe 13 and the holes 22 which are formed in the first interior partition 4. During operation of the heating unit, this ring 23 pierced with holes 24 regulates the flow of heat-transfer fluid which enters through the tube 13 and which rises towards the holes 22. It will be noted that a space is provided between the second interior partition 5 and the first end wall 2, which puts the second annular space 7 in communication with the central channel 8.
Deux thermoplongeurs électriques 25 sont situés dans le canal central 8. Ces thermoplongeurs 25 sont fixés dans une embase 26 qui est vissée dans l'anneau 10, un pont 27 assurant l'étanchéité du montage.Two electric immersion heaters 25 are located in the central channel 8. These immersion heaters 25 are fixed in a base 26 which is screwed into the ring 10, a bridge 27 ensuring the tightness of the assembly.
Des connecteurs 28 permettent de raccorder les thermoplongeurs 25 à des câbles d'alimentation électrique.Connectors 28 allow the immersion heaters 25 to be connected to power supply cables.
Des épaulements 29, 30 sont destinés à la fixation de l'unité de chauffage sur un support approprié. Lors du fonctionnement de l'unité de chauffage, un thermo- plongueur 25 ou les deux thermoplongeurs 25 sont mis en fonctionnement. Pendant ce temps, le fluide caloporteur circule dans l'unité de chauffage en entrant par l'entrée 13, en remontant dans le premier espace annulaire 6, en pénétrant par les trous 22 dans le second espace annulaire 7, en descendant dans le second espace annulaire 7 et en remontant dans le canal central 8 jusqu'à la sortie 14.Shoulders 29, 30 are intended for fixing the heating unit on a suitable support. During the operation of the heating unit, an immersion heater 25 or the two immersion heaters 25 are put into operation. During this time, the heat transfer fluid circulates in the heating unit by entering by the entry 13, by going up in the first annular space 6, by penetrating by the holes 22 in the second annular space 7, by going down in the second space annular 7 and going up in the central channel 8 to exit 14.
Lors de sa traversée du canal central 8, le fluide caloporteur est en contact direct avec des thermoplongeurs 25 qui le portent à la température souhaitée. Toutefois, grâce à la conductibilité thermique des cloisons intérieures 4 et 5, le fluide caloporteur est déjà préchauffé au cours de son passage dans le premier espace annulaire 6 et ensuite surtout au cours de son passage dans le second espace annulaire 7 dans lequel il entre en contact non seulement avec la seconde cloison intermédiaire 5 mais également avec les éléments de transfert de chaleur 16, 17 et 20.When passing through the central channel 8, the heat transfer fluid is in direct contact with immersion heaters 25 which bring it to the desired temperature. However, thanks to the thermal conductivity of the interior partitions 4 and 5, the heat transfer fluid is already preheated during its passage in the first annular space 6 and then especially during its passage in the second annular space 7 in which it enters contact not only with the second intermediate partition 5 but also with the heat transfer elements 16, 17 and 20.
Une unité de chauffage telle que décrite est destinée à être branchée dans le circuit de canalisations d'une installation de chauffage central. Dans le circuit de canalisations d'une telle installation sont généralement branchés plusieurs radiateurs, au moins une unité de chauffage, au moins une pompe de circulation et au moins un dispositif d'expansion. L'installation comprend, en outre, au moins un thermostat d'ambiance et un poste de commande automatisé apte à recevoir les signaux du ou des thermostats d'ambiance et des sondes thermostatiques de l'unité de chauffage (ou des unités de chauffage), et à commander la mise en fonctionnement et l'arrêt de fonctionnement de la pompe de circulation (ou des pompes de circulation) et du ou des thermoplongeurs de l'unité de chauffage (ou des unités de chauffage).A heating unit as described is intended to be connected to the piping circuit of a central heating installation. In the pipe circuit of such an installation are generally connected several radiators, at least one heating unit, at least one circulation pump and at least one expansion device. The installation also comprises at least one room thermostat and an automated control station capable of receiving signals from the room thermostats and from the heating unit (or heating units) , and to control the starting and stopping of operation of the circulation pump (or of the circulation pumps) and of the immersion heater (s) of the heating unit (or of the heating units).
La capacité de chauffage d'une unité de chauffage dépend évidemment de la puissance du ou des thermoplongeurs montés dans l'unité. Le choix de thermoplongeurs de puissance appropriés permet de répondre à une capacité de chauffage souhaitée.The heating capacity of a heating unit obviously depends on the power of the immersion heater (s) mounted in unit. The choice of appropriate power immersion heaters makes it possible to meet a desired heating capacity.
Il peut être souhaitable de brancher deux ou plusieurs unités de chauffage, en parallèle, dans le circuit d'une installation de chauffage central. Il est en outre avantageux que deux thermoplongeurs soient montés dans chaque unité de chauffage.It may be desirable to connect two or more heating units in parallel in the circuit of a central heating installation. It is also advantageous that two immersion heaters are mounted in each heating unit.
Le poste de commande de l'installation peut alors être programmé pour que, en fonction du besoin de chauffage, un ou deux thermoplongeurs d'une ou plusieurs unités de chauffage soient mis en fonctionnement. Le poste de commande est également programmé pour que la ou les unités de chauffage ne puissent fonctionner que lorsque la ou les pompes de circulation fonctionnent.The installation control station can then be programmed so that, depending on the heating requirement, one or two immersion heaters from one or more heating units are put into operation. The control station is also programmed so that the heating unit (s) can only operate when the circulation pump (s) are running.
Les unités de chauffage suivant l'invention sont très peu encombrantes, sont de construction très simple, et permettent une grande souplesse de fonctionnement de l'installation dans laquelle elles sont branchées.The heating units according to the invention are very compact, are of very simple construction, and allow great flexibility of operation of the installation in which they are connected.
Le fluide caloporteur qu'on fait circuler dans l'installation est de préférence de l'huile minérale pour transfert de calories. Ceci permet notamment de chauffer le fluide caloporteur à une température supérieure à 100°C, et cela reste possible, sans problème, même à haute altitude, dans les régions montagneuses.The heat transfer fluid that is circulated in the installation is preferably mineral oil for transfer of calories. This makes it possible in particular to heat the heat transfer fluid to a temperature above 100 ° C., and this remains possible, without problem, even at high altitude, in mountainous regions.
Une unité de chauffage suivant l'invention est un appareil compact qui contient seulement un faible volume de fluide caloporteur et qui, de ce fait, a une faible inertie thermique. Si les radiateurs ou convecteurs montés dans l'installation sont du type à grande surface de rayonnement et faible volume interne, l'installation dans son ensemble aura une faible inertie thermique, ce qui constitue un réel avantage. A heating unit according to the invention is a compact device which contains only a small volume of heat transfer fluid and which, therefore, has a low thermal inertia. If the radiators or convectors installed in the installation are of the type with a large radiation surface and low internal volume, the installation as a whole will have low thermal inertia, which constitutes a real advantage.

Claims

R E V E N D I C A T I O N S
1.- Unité de chauffage de fluide caloporteur pour installation de chauffage central, caractérisée en ce qu'elle consiste en un réservoir comportant une paroi extérieure tubulaire (1 ), une première paroi d'extrémité (2) et une seconde paroi d'extrémité (3), ces parois (1 , 2, 3) délimitant un espace en substance cylindrique, une première cloison intérieure tubulaire (4) et une seconde cloison intérieure tubulaire (5), en substance concentriques avec la paroi extérieure tubulaire (1) étant montées dans le réservoir, la seconde cloison intérieure (5) ayant un diamètre plus petit que celui de la première cloison intérieure (4), un premier espace annulaire (5) étant situé entre la paroi extérieure tubulaire (1 ) et la première cloison intérieure (4), un second espace annulaire (7) étant situé entre la première cloison intérieure (4) et la seconde cloison intérieure (5), un canal central (8) étant situé à l'intérieur de la seconde cloison intérieure (5), le second espace annulaire (7) étant en communication avec le canal central (8) à proximité de la première paroi d'extrémité (2) et en communication avec le premier espace annulaire (6) à proximité de la seconde paroi d'extrémité (3), le réservoir étant muni d'un orifice d'entrée (13) débouchant dans le premier espace annulaire (6) à proximité de la première paroi d'extrémité (2), et d'un orifice (14), dans la seconde paroi d'extrémité (3), débouchant du canal central (8), au moins un thermoplongeur électrique (25) étant monté dans le canal central (8), au moins une sonde thermostatique (19) étant montée dans le réservoir.1.- Heat transfer fluid heating unit for central heating installation, characterized in that it consists of a tank comprising a tubular outer wall (1), a first end wall (2) and a second end wall (3), these walls (1, 2, 3) delimiting a substantially cylindrical space, a first tubular internal partition (4) and a second tubular internal partition (5), substantially concentric with the tubular external wall (1) being mounted in the tank, the second interior partition (5) having a smaller diameter than that of the first interior partition (4), a first annular space (5) being located between the tubular exterior wall (1) and the first interior partition (4), a second annular space (7) being located between the first interior partition (4) and the second interior partition (5), a central channel (8) being located inside the second interior partition (5) , the second annular space (7) being in communication with the central channel (8) near the first end wall (2) and in communication with the first annular space (6) near the second end wall ( 3), the reservoir being provided with an inlet orifice (13) opening into the first annular space (6) near the first end wall (2), and with an orifice (14), in the second end wall (3), emerging from the central channel (8), at least one electric immersion heater (25) being mounted in the central channel (8), at least one thermostatic probe (19) being mounted in the tank.
2.- Unité de chauffage suivant la revendication 1, caractérisée en ce que la paroi extérieure tubulaire (1 ), les première et seconde parois d'extrémité (2, 3) et la première cloison intérieure (4) sont faites en acier. 2. A heating unit according to claim 1, characterized in that the tubular outer wall (1), the first and second end walls (2, 3) and the first interior partition (4) are made of steel.
3.- Unité de chauffage suivant l'une quelconque des revendications précédentes, caractérisée en ce que la seconde cloison (5) intérieure est faite en acier.3.- Heating unit according to any one of the preceding claims, characterized in that the second partition (5) inside is made of steel.
4.- Unité de chauffage suivant l'une quelconque des revendi- cations 1 et 2, caractérisée en ce que la seconde cloison intérieure (5) est faite en cuivre.4.- Heating unit according to any one of claims 1 and 2, characterized in that the second interior partition (5) is made of copper.
5.- Unité de chauffage suivant l'une quelconque des revendications précédentes, caractérisée en ce qu'elle comporte des éléments de transfert de chaleur situés dans ledit second espace annulaire (7) et solidaires de ladite seconde cloison intérieure (5).5. A heating unit according to any one of the preceding claims, characterized in that it comprises heat transfer elements located in said second annular space (7) and integral with said second interior partition (5).
6.- Unité de chauffage suivant la revendication 5, caractérisée en ce que lesdits éléments de transfert de chaleur consistent en deux anneaux (16, 17) espacés l'un de l'autre, solidaires de ladite seconde cloison intérieure (5) et disposés perpendiculairement à l'axe de celle-ci, ces deux anneaux (16, 17) étant percés de plusieurs trous (21) et étant raccordés entre eux au moyen de plusieurs barres métalliques (20), espacées l'une de l'autre.6. A heating unit according to claim 5, characterized in that said heat transfer elements consist of two rings (16, 17) spaced from each other, integral with said second interior partition (5) and arranged perpendicular to the axis thereof, these two rings (16, 17) being pierced with several holes (21) and being connected to each other by means of several metal bars (20), spaced from one another.
7.- Unité de chauffage suivant la revendication 6, caractérisée en ce que lesdites barres métalliques (20) présentent une surface extérieure nervurée.7. A heating unit according to claim 6, characterized in that said metal bars (20) have a ribbed outer surface.
8.- Unité de chauffage suivant l'une quelconque des revendications 6 et 7, caractérisée en ce que lesdits deux anneaux (16, 17) solidaires de la seconde cloison intérieure (5) sont faits en acier.8. A heating unit according to any one of claims 6 and 7, characterized in that said two rings (16, 17) integral with the second interior partition (5) are made of steel.
9.- Unité de chauffage suivant l'une quelconque des revendi- cations 6 et 7, caractérisée en ce que lesdits deux anneaux (16, 17) solidaires de la seconde cloison intérieure (5) sont faits en cuivre.9.- Heating unit according to any one of claims 6 and 7, characterized in that said two rings (16, 17) integral with the second interior partition (5) are made of copper.
10.- Unité de chauffage suivant l'une quelconque des revendications 6 à 9, caractérisée en ce que lesdites barres métalliques (20) sont faites en cuivre. 10.- Heating unit according to any one of claims 6 to 9, characterized in that said metal bars (20) are made of copper.
11.- Unité de chauffage suivant l'une quelconque des revendications précédentes, caractérisée en ce qu'elle comprend au moins une sonde thermostatique (19) montée dans ledit second espace annulaire (7). 11. A heating unit according to any one of the preceding claims, characterized in that it comprises at least one thermostatic probe (19) mounted in said second annular space (7).
12.- Unité de chauffage suivant l'une quelconque des revendications précédentes, caractérisée en ce que plusieurs ouvertures (22) réparties sur le pourtour de ladite première cloison intérieure (4), à proximité de la seconde paroi d'extrémité (3), mettent en communication le premier espace annulaire (6) et le second espace annulaire (7). 12. A heating unit according to any one of the preceding claims, characterized in that several openings (22) distributed around the periphery of said first interior partition (4), near the second end wall (3), connect the first annular space (6) and the second annular space (7).
13.- Unité de chauffage suivant la revendication 12, caractérisée en ce que, perpendiculairement à l'axe du réservoir, un anneau (23) est monté entre la paroi extérieure tubulaire (1) et ladite première cloison intérieure (4), cet anneau (23), percé de plusieurs trous (24) répartis le long de son pourtour, étant situé à un niveau intermédiaire entre l'orifice d'entrée (13) du réservoir et les ouvertures (22) qui sont ménagées dans ladite première cloison intérieure (4).13. A heating unit according to claim 12, characterized in that, perpendicular to the axis of the tank, a ring (23) is mounted between the tubular outer wall (1) and said first interior partition (4), this ring (23), pierced with several holes (24) distributed along its periphery, being located at an intermediate level between the inlet orifice (13) of the tank and the openings (22) which are formed in said first interior partition (4).
14.- Unité de chauffage suivant l'une quelconque des revendications précédentes, caractérisée en ce qu'un espace est ménagé entre ladite seconde cloison intérieure (5) et la première paroi d'extrémité (2), mettant ainsi en communication le second espace annulaire (7) et le canal central (8).14.- Heating unit according to any one of the preceding claims, characterized in that a space is provided between said second interior partition (5) and the first end wall (2), thus putting the second space into communication. annular (7) and the central channel (8).
15.- Unité de chauffage suivant l'une quelconque des revendications précédentes, caractérisée en ce que ledit orifice d'entrée (13) du réservoir est ménagé dans la paroi extérieure tubulaire (1). 15.- Heating unit according to any one of the preceding claims, characterized in that said inlet orifice (13) of the tank is formed in the tubular outer wall (1).
16.- Unité de chauffage suivant l'une quelconque des revendications précédentes, caractérisée en ce que le réservoir est muni de moyens (29, 30) permettant de le fixer sur un support.16.- Heating unit according to any one of the preceding claims, characterized in that the tank is provided with means (29, 30) for fixing it on a support.
17.- Unité de chauffage suivant l'une quelconque des revendications précédentes, caractérisée en ce que deux thermoplongeurs électriques (25) sont montés dans ledit canal central (8). 17. A heating unit according to any one of the preceding claims, characterized in that two electric immersion heaters (25) are mounted in said central channel (8).
18.- Installation de chauffage central à fluide caloporteur, comportant un circuit de canalisations dans lequel sont branchés un ou plusieurs radiateurs ou convecteurs, au moins une pompe de circulation, au moins un dispositif d'expansion et au moins une unité de chauffage, l'installation comportant au moins un thermostat d'ambiance, caractérisée en ce qu'au moins une unité de chauffage suivant l'une quelconque des revendications précédentes est branchée dans ledit circuit, l'installation comportant un poste de commande automatisé apte à recevoir les signaux du ou des thermostats d'ambiance et de la ou des sondes thermostatiques (19) de la ou des unités de chauffage et à commander la mise en fonctionnement et l'arrêt de fonctionnement de la ou des pompes de circulation et du ou des thermoplongeurs de la ou des unités de chauffage.18.- Central heating system with heat transfer fluid, comprising a circuit of pipes in which one or more radiators or convectors are connected, at least one circulation pump, at least one expansion device and at least one heating unit, l installation comprising at least one room thermostat, characterized in that at least one heating unit according to any one of the preceding claims is connected to said circuit, the installation comprising an automated control station capable of receiving the signals of the room thermostats and of the thermostatic probe (s) (19) of the heating unit (s) and of controlling the starting and stopping of operation of the circulation pump (s) and of the immersion heater (s) the heating unit (s).
19.- Installation de chauffage central suivant la revendi- cation 18, caractérisée en ce que deux ou plusieurs unités dé chauffage suivant l'une quelconque des revendications 1 à 17 sont branchées en parallèle dans ledit circuit.19.- Central heating installation according to claim 18, characterized in that two or more heating units according to any one of claims 1 to 17 are connected in parallel in said circuit.
20.- Installation de chauffage central suivant l'une quelconque des revendications 18 et 19, caractérisée en ce que le fluide caloporteur est de l'huile.20.- Central heating installation according to any one of claims 18 and 19, characterized in that the heat transfer fluid is oil.
21.- Installation de chauffage central suivant la revendication 20, caractérisée en ce que la ou les unités de chauffage sont aptes à chauffer le fluide caloporteur à une température supérieure à 100°C. 21. Central heating installation according to claim 20, characterized in that the heating unit or units are capable of heating the heat transfer fluid to a temperature above 100 ° C.
EP01937884A 2000-06-09 2001-05-17 Heating unit for heat-conveying medium for central heating installation Expired - Lifetime EP1290380B8 (en)

Applications Claiming Priority (3)

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BE200000374 2000-06-09
BE2000/0374A BE1013549A3 (en) 2000-06-09 2000-06-09 Unit heat transfer fluid heater for installation of central heating.
PCT/BE2001/000087 WO2001094860A1 (en) 2000-06-09 2001-05-17 Heating unit for heat-conveying medium for central heating installation

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EP1290380A1 true EP1290380A1 (en) 2003-03-12
EP1290380B1 EP1290380B1 (en) 2005-11-02
EP1290380B8 EP1290380B8 (en) 2006-05-17

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EP (1) EP1290380B8 (en)
AT (1) ATE308726T1 (en)
AU (1) AU2001263673A1 (en)
BE (1) BE1013549A3 (en)
CA (1) CA2411703A1 (en)
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WO2001094860A1 (en) 2001-12-13
EP1290380B1 (en) 2005-11-02
DE60114615T2 (en) 2006-08-10
US20030164402A1 (en) 2003-09-04
EP1290380B8 (en) 2006-05-17
ATE308726T1 (en) 2005-11-15
AU2001263673A1 (en) 2001-12-17
DE60114615D1 (en) 2005-12-08
BE1013549A3 (en) 2002-03-05
US6736329B2 (en) 2004-05-18
CA2411703A1 (en) 2001-12-13

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