EP2251611A1 - Modulelement für Heizgerät mit Wärmeübertragungsflüssigkeit, und elektrisches Heizgerät, das aus mindestens einem solchen Element besteht - Google Patents

Modulelement für Heizgerät mit Wärmeübertragungsflüssigkeit, und elektrisches Heizgerät, das aus mindestens einem solchen Element besteht Download PDF

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Publication number
EP2251611A1
EP2251611A1 EP10161331A EP10161331A EP2251611A1 EP 2251611 A1 EP2251611 A1 EP 2251611A1 EP 10161331 A EP10161331 A EP 10161331A EP 10161331 A EP10161331 A EP 10161331A EP 2251611 A1 EP2251611 A1 EP 2251611A1
Authority
EP
European Patent Office
Prior art keywords
tubular element
radiator
envelope
heating
tubular
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.)
Withdrawn
Application number
EP10161331A
Other languages
English (en)
French (fr)
Inventor
Rolland Brot
Benoît Williamson
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.)
Atlantic Industrie SAS
Atlantic Industries Inc
Original Assignee
Atlantic Industrie SAS
Atlantic Industries Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Atlantic Industrie SAS, Atlantic Industries Inc filed Critical Atlantic Industrie SAS
Publication of EP2251611A1 publication Critical patent/EP2251611A1/de
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/0226—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with an intermediate heat-transfer medium, e.g. thermosiphon radiators
    • 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
    • F24H3/00—Air heaters
    • F24H3/002—Air heaters using electric energy supply
    • F24H3/004—Air heaters using electric energy supply with a closed circuit for a heat transfer liquid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
    • F28F21/081—Heat exchange elements made from metals or metal alloys
    • F28F21/084—Heat exchange elements made from metals or metal alloys from aluminium or aluminium alloys
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
    • F28F21/088—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal for domestic or space-heating systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2255/00—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes
    • F28F2255/14—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes molded
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2255/00—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes
    • F28F2255/16—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes extruded

Definitions

  • the invention relates to the field of heat transfer fluid radiators, and more particularly that of heat transfer fluid electric radiators.
  • Heat transfer radiators are heating devices comprising heated tubular elements inside which circulates the fluid carrying the calories, so as to heat the entire radiator by conduction. These devices are of two main types, namely the central heating radiators for which the coolant is heated outside the radiators, by means of a boiler to which are connected said radiators, and the electric radiators in which the fluid coolant is heated by one or more electrical resistance (s) disposed (s) within the heating elements and circulates in closed circuit in said elements.
  • radiators generally consist of an assembly of tubular elements comprising a manifold for the hot fluid (connected to the hot water pipe coming from the boiler or incorporating the electric heating resistance) and a collector for the cooled fluid, both collectors being interconnected by fluidic connection conduits for the circulation of the fluid between said collectors.
  • connection ducts which are numerous and of various shapes (for example in the form of cylindrical tubes or parallelepipedic blades), are themselves heated by the coolant coming from the hot collector passing through them, and in turn serve to heat the air. surrounding the radiator, or to dry or reheat clothes (towel radiators).
  • the number of heating connection conduits is multiplied.
  • the more the number of connecting conduits is increased the greater the number of connections to be made between the collectors and the connecting ducts, and consequently the risk of leakage defects and the associated manufacturing costs are increased.
  • connection between the various tubular elements is a critical point because this connection must ensure the communication of the fluid between them without generating fluid leakage.
  • a first solution is to weld together the tubular elements.
  • orifices are made before assembly; these orifices allow the passage of heat transfer fluid between the collectors and the connecting ducts. Sealing is ensured by the realization of a continuous weld bead made at said contact zone surrounding each orifice.
  • This solution involves multiple welds radiator, so many risks of leaks. For example, for a single radiator having two collectors and ten connecting conduits, it is necessary to reliably produce twenty welds.
  • the welding operation is relatively complex technically because it requires special know-how, substantial industrial resources, a manual preparation phase for the establishment of the various elements relative to each other, holding templates during welding and baking ovens (in the case of soldering by welding for example).
  • a manual preparation phase for the establishment of the various elements relative to each other, holding templates during welding and baking ovens (in the case of soldering by welding for example).
  • a second solution is to connect the heating ducts (mainly heating blades) to each other by means of connectors called "nipple", that is to say, tubular connectors threaded at their two ends in inverted screw pitches.
  • said heating ducts generally made of aluminum, are provided lateral orifices intended, after assembly, for the passage of fluid from one heating blade to the other by means of the "nipple” connections screwed to each of the ends of two adjacent heating pipes.
  • the seal is provided by a silicone / elastomer seal or klingerite seal placed between the wall of said heating pipe and the "nipple" before screwing it.
  • the collector is then not a continuous tubular element but is formed by the succession of internal tubular parts of the "nipple" connections between the heating pipes.
  • This solution avoiding welding operations has, however, the disadvantage of require a large number of assemblies: the risks of leakage are therefore all the higher. For example, for a radiator with heat transfer fluid having ten heating blades connected two by two at their two ends, it is necessary to provide eighteen connections "nipple" thus make thirty-six assemblies sealed in total. In addition, this type of assembly is relatively expensive and requires for a correct realization a particular know-how.
  • a first object of the invention is therefore to reduce the risk of leaks in electric heat radiators coolant.
  • Another object of the invention is to simplify the manufacture of such radiators and reduce their cost.
  • Yet another object of the present invention is to reduce, or even eliminate, the number of welds or connections with joints allowing the communication of the fluid between the tubular elements between them.
  • the present invention proposes a modular element for heat transfer fluid radiator, comprising at least one vertical heating tubular element containing an electrical resistance heating said heat transfer fluid, characterized in that the vertical tubular element closed at its two ends, is integral with a diffuser in the form of fins connecting to the tubular element in a direction substantially parallel to the longitudinal axis of said tubular element and is housed in a casing surrounding said tubular element, the tubular element being maintained in place in said casing by spacers constituted by at least a portion of the fins of the diffuser, allowing said casing to be heated by conduction.
  • the envelope is also substantially parallel to the longitudinal axis of the tubular element.
  • the closed ends of the tubular heating elements are preferably equipped with plugs for their closure, the heat transfer fluid being retained in a closed circuit. No welding or fitting is needed, which greatly simplifies assembly, and lowers the cost of manufacture. The risks of leakage of the heat transfer fluid are also greatly reduced. To also reduce risk of leakage at the plugs, these plugs are preferably made according to the patent application FR07-09080 from the same applicant.
  • tubular elements are not in direct contact with the outer casing of the modular element, which allows the heating of these tubular elements, and therefore of the heat transfer fluid, at much higher temperatures (for example nearby temperatures from 100 ° C to 140 ° C) at the usual temperatures of the heating collectors of the state of the art, limited to about 80 to 90 ° C according to the standards currently in force, for reasons of safety for the user.
  • the fins are preferably vertical fins, arranged tangentially or radially to the wall of the tubular element, for example in a radiating arrangement around said tubular elements, and developing in a direction substantially parallel to the longitudinal axis of the tubular element. tubular element.
  • These fins form between them air circulation ducts and thus participate, (in addition to the participation of some of them in heating by conduction of the envelope) to the circulation, within said envelope, of the air heated by convection by the heating elements (in particular tubular element and diffuser).
  • the envelope is open at least partially at its two ends, said upper and lower, so as to allow the circulation of convection heated air, with the outside of the envelope, in particular along the fins vertical.
  • the periphery of the envelope may also have orifices or discontinuities, such as openings in the form of slots, vertical, oblique or horizontal, still participating in improving the convection near the envelope.
  • the modular element for radiator according to the invention comprises a plurality of heating tubular elements each containing a heating electric resistance, said tubular elements being housed in the same casing.
  • These tubular elements are independent of each other, closed at each of their ends, for example by sealing plugs; they each contain a heating electric resistance heater type, thus constituting autonomous heating elements having no fluid connection between them. No welding or fitting is required.
  • the present invention also relates to an electric radiator with heat transfer fluid comprising at least one modular element as described above, each of which may contain one or more heating tubular elements.
  • the radiator consists of a single modular element.
  • the radiator consists of several modular elements, juxtaposed or superimposed, and joined together at their envelopes. Since no welding or connection is required between the tubular elements, the manufacture of the radiator is facilitated, and its cost is considerably reduced.
  • the modular element 1 for heat transfer fluid radiator is composed of a single vertical tubular element 2, here of cylindrical shape, containing a heat transfer fluid and in the lower part a heating electric resistance 4 connected to a power supply (not shown).
  • the coolant is heated by the electrical resistance 4 and circulates throughout the tubular element 2 delimited by substantially cylindrical walls 3.
  • the ends of the tubular element 2 are closed by a plug (not shown).
  • the walls 3 of the tubular element 2 are radially extended by vertical fins 8 which serve as spacers between said wall 3 of the tubular element 2 and respectively the front walls 5 and rear 6 and the side walls 7 of said envelope 11 of the modular element 1.
  • the heat transfer fluid can thus be raised to high temperatures, for example between 100 and 140 ° C, while the envelope 11 remains at a temperature compatible with use by the public, that is to say a temperature not exceeding not about 80 to 90 ° C.
  • the thickness of the fins can range from about 0.5 to 5 mm.
  • the vertical tubular element is of cylindrical shape, but could be of oval, square, rectangular, hexagonal or any other shape.
  • the modular element 1 encloses two vertical parallel tubular elements 2, each containing a heating electric resistance 4.
  • the arrangement of the fins 8 may be in accordance with the provision of the first embodiment presented to the figure 2 .
  • As visible on the figure 4 may be provided additional spacers directly connecting two walls vis-à-vis the envelope 11 (referenced 9 on the figure 4 ), as well as spacers connecting the two heating elements to each other (referenced 10). These spacers also create between them vertical ducts for air circulation.
  • the fins 8 are arranged radially around the tubular element 2.
  • the fins are tangentially disposed relative to the cylindrical wall 3 of the tubular element 2. In this case, they directly connect the front wall 5 and the rear wall 6 of the casing 11 of the modular element by integrating a tangential connecting zone to the wall 3, along a generatrix of the tubular element 2.
  • Such a modular element 1 may be made of aluminum-based material or aluminum alloy manufactured by molding or extrusion.
  • the extrusion manufacturing process makes it possible to obtain modular elements 1 of very great length, the length of which can be adjusted on demand.
  • the radiator according to the invention may consist of a single modular element 1, or as represented in FIG. figure 7 , consisting of an assembly of two or more modular elements 1 juxtaposed and assembled by means of connecting piece 12 at their side walls 7.
  • a clipping assembly can also be provided.
  • the envelope 11 may be partially or fully open at its upper and lower ends so as to allow the circulation of the convection heated air along the vertical fins and struts with the external environment of the radiator.
  • a protective cover for example a grid or a plate provided with slots allowing the evacuation of air
  • the tubular heating element can be provided for reasons of safety vis-à-vis users.
  • orifices or slots 13, for example vertical as shown in FIG. figure 7 may be formed in the wall of the casing 11 (these orifices or slots are of small size to further promote the flow of air while prohibiting the direct access of the user to the wall 3 of the element tubular 2).
  • such a heat transfer fluid radiator comprises no welding and therefore no risk of fluid leakage, the latter being enclosed in tubular elements 2 individual and autonomous without connection between them.
EP10161331A 2009-05-04 2010-04-28 Modulelement für Heizgerät mit Wärmeübertragungsflüssigkeit, und elektrisches Heizgerät, das aus mindestens einem solchen Element besteht Withdrawn EP2251611A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0902131A FR2945106B1 (fr) 2009-05-04 2009-05-04 Element modulaire pour radiateur a fluide caloporteur et radiateur electrique constitue d'au moins un tel element

Publications (1)

Publication Number Publication Date
EP2251611A1 true EP2251611A1 (de) 2010-11-17

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EP10161331A Withdrawn EP2251611A1 (de) 2009-05-04 2010-04-28 Modulelement für Heizgerät mit Wärmeübertragungsflüssigkeit, und elektrisches Heizgerät, das aus mindestens einem solchen Element besteht

Country Status (2)

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EP (1) EP2251611A1 (de)
FR (1) FR2945106B1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBL20110006A1 (it) * 2011-06-24 2012-12-25 Ferroli Spa Radiatore elettrico a colonna, con alimentazione a due o piu' resistanze verticali
ITAN20120161A1 (it) * 2012-12-07 2014-06-08 Gruppo Ragaini S P A Radiatore elettrico di nuova concezione
CN107940428A (zh) * 2017-07-31 2018-04-20 山东交通学院 一种新式结构的蒸汽发生器
FR3084733A1 (fr) * 2018-08-06 2020-02-07 Thermie Production Dispositif de radiateur electrique vertical d'une hauteur maximum de deux metres a l'usage d'habitation selon la technologie de fluides caloporteur
WO2021058846A1 (es) * 2019-09-23 2021-04-01 Comtec Iberica, S.L. Radiador eléctrico modular

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2098897A5 (de) * 1970-07-30 1972-03-10 Thomson Csf
FR2351361A1 (fr) * 1976-05-14 1977-12-09 Brapal Sa Procede de chauffage par radiateurs electriques a eau
DE3915932A1 (de) * 1989-05-16 1990-11-22 Thermotechnik Dipl Ing Ludwig Heizkoerper zum klimatisieren von raeumen
WO2000070286A1 (en) * 1999-05-14 2000-11-23 Stefanini, Daniel Heat transfer system, particularly for use in the heating or cooling of buildings
EP1884721A2 (de) * 2006-08-04 2008-02-06 DL RADIATORS S.p.A. Heizkörper zum Beheizen eines Raumes

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2098897A5 (de) * 1970-07-30 1972-03-10 Thomson Csf
FR2351361A1 (fr) * 1976-05-14 1977-12-09 Brapal Sa Procede de chauffage par radiateurs electriques a eau
DE3915932A1 (de) * 1989-05-16 1990-11-22 Thermotechnik Dipl Ing Ludwig Heizkoerper zum klimatisieren von raeumen
WO2000070286A1 (en) * 1999-05-14 2000-11-23 Stefanini, Daniel Heat transfer system, particularly for use in the heating or cooling of buildings
EP1884721A2 (de) * 2006-08-04 2008-02-06 DL RADIATORS S.p.A. Heizkörper zum Beheizen eines Raumes

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBL20110006A1 (it) * 2011-06-24 2012-12-25 Ferroli Spa Radiatore elettrico a colonna, con alimentazione a due o piu' resistanze verticali
EP2538151A3 (de) * 2011-06-24 2013-08-07 FERROLI S.p.A. Elektrisches Säulenheizgerät mit Stromversorgung und zwei oder mehreren vertikalen Widerständen
ITAN20120161A1 (it) * 2012-12-07 2014-06-08 Gruppo Ragaini S P A Radiatore elettrico di nuova concezione
CN107940428A (zh) * 2017-07-31 2018-04-20 山东交通学院 一种新式结构的蒸汽发生器
FR3084733A1 (fr) * 2018-08-06 2020-02-07 Thermie Production Dispositif de radiateur electrique vertical d'une hauteur maximum de deux metres a l'usage d'habitation selon la technologie de fluides caloporteur
WO2021058846A1 (es) * 2019-09-23 2021-04-01 Comtec Iberica, S.L. Radiador eléctrico modular

Also Published As

Publication number Publication date
FR2945106B1 (fr) 2011-04-22
FR2945106A1 (fr) 2010-11-05

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