EP1956332A1 - Wärmestrahlender Plattenheizkörper und Herstellungsverfahren dafür - Google Patents

Wärmestrahlender Plattenheizkörper und Herstellungsverfahren dafür Download PDF

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Publication number
EP1956332A1
EP1956332A1 EP07108183A EP07108183A EP1956332A1 EP 1956332 A1 EP1956332 A1 EP 1956332A1 EP 07108183 A EP07108183 A EP 07108183A EP 07108183 A EP07108183 A EP 07108183A EP 1956332 A1 EP1956332 A1 EP 1956332A1
Authority
EP
European Patent Office
Prior art keywords
radiator
conduit
groove
header
plate
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Withdrawn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
EP07108183A
Other languages
English (en)
French (fr)
Inventor
Olivo Foglieni
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.)
Fecs Partecipazioni Srl
Original Assignee
Fecs Partecipazioni Srl
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 Fecs Partecipazioni Srl filed Critical Fecs Partecipazioni Srl
Publication of EP1956332A1 publication Critical patent/EP1956332A1/de
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/14—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending longitudinally
    • F28F1/22—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending longitudinally the means having portions engaging further tubular elements
    • 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
    • F28D1/04—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 tubular conduits
    • F28D1/047—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 tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • 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
    • F28D1/04—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 tubular conduits
    • F28D1/047—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 tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
    • F28D1/0475—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 tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag the conduits having a single U-bend
    • 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
    • F28D2001/0253—Particular components
    • F28D2001/0286—Radiating plates; Decorative panels
    • F28D2001/0293—Radiating plates; Decorative panels with grooves for integration of conduits

Definitions

  • the present invention relates to a radiant plate radiator and a process for its production.
  • Certain existing radiant plate radiators were produced by forming grooves of square cross-section in the plate, then fixing conduits to their interior by means of an adhesive.
  • radiators produced in this manner therefore present plates with grooves of round cross-section with the conduits fixed to their interior by an adhesive.
  • radiators also present numerous problems, including the risk of detachment of the conduits so that they (at least partially) escape from the grooves, and possible dimensional variations which, besides increasing the risk of detachment by stressing the adhesive, can generate creaking and noise.
  • the technical aim of the present invention is therefore to provide a radiant plate radiator and a process for its production which enable the stated technical drawbacks of the known art to be eliminated.
  • an object of the invention is to provide a radiator which does not present the risk of detachment of the conduits carrying the thermovector fluid, from the radiant plate.
  • Another object is to provide a radiator in which creaking and noise do not occur, even if relative dimensional variations arise between the conduits and the radiant plate.
  • a further object of the invention is to provide a radiator and to indicate a process for its production which enable very efficient heat transfer to take place between the conduits carrying the thermovector fluid and the radiant plate.
  • the radiator of the invention is modular, in the sense that to achieve a radiant surface of predetermined size, two or more radiators of the invention can be used connected together.
  • the radiator 1 comprises a radiant plate 2 made of heat conducting material, for example a metal plate of aluminium, steel, etc.
  • the plate 2 is provided (in the example shown in the figures) with two U-bent grooves 3, into each of which a conduit 5 containing a thermovector fluid is inserted; the conduits are made of a heat conducting material, for example a copper, steel, aluminium, brass, bronze or other tube.
  • Each conduit 5 has its (outer) surfaces positioned in direct contact with surfaces of the groove 3 into which it is inserted, without interposing adhesives; this results in very efficient heat transfer between the thermovector fluid contained in the conduits 5 and the plate 2.
  • those edges 6 at the outwardly open portion 7 of the grooves 3 converge; in particular, as shown in Figure 10 , the grooves are of circular arc shape.
  • conduits 5 are inserted into the corresponding groove 3 by pressing, and preferably by rolling.
  • each conduit 5 to be inserted into the respective groove without the conduit being able to emerge from the actual groove, while in addition enabling the surface of the conduit 5 to undergo deformation so that it adheres to the surface of the groove 3; this further improves retention of the conduit 5 in the groove 3 and heat transfer between the thermovector fluid contained in the conduit 5 and the radiant plate 2 in which the grooves 3 are provided.
  • the radiator 1 also comprises a first header 9 fixed to one end of the plate 2 by collars 10 rigid with said plate 2; this header 9 can be connected to the system feeding hot water for heating purposes (for water radiators).
  • the conduits 5 are connected to the header 9; in particular the conduits 5 are bent to U-shape, with both ends of each conduit 5 opening into the header 9.
  • the header 9 is connected both to the water feed 12 and to the water discharge 13, the feed 12 being connected to one end of the header 9 and the discharge 13 to its other end.
  • FIGS 7, 8 show a radiator 1 having characteristics similar to those of the radiator shown in Figures 3, 4 .
  • this radiator has a second header 15 positioned at that end of the plate 2 opposite the end to which the first header 9 is connected.
  • the grooves 3 and the conduits 5 are rectilinear, the conduits 5 being connected between the first and second header 9, 15.
  • header 9 is connected to the water feed 12 and the discharge 13 is connected to the other header 15.
  • FIG 11 shows a further embodiment of the radiator of the invention.
  • This radiator has similar characteristics to the already described radiators, however it uses diathermic oil in closed circuit as the thermovector fluid, instead of the system water.
  • This radiator comprises one or two headers (only one header 9 is provided in the represented example), with the conduits 5 starting from these headers and extending inside the grooves provided in the radiant plate 2; in the example the grooves and conduits are bent to U-shape, however in an embodiment with two headers, the grooves and conduits are evidently both rectilinear, with the conduits connected to each of the headers.
  • an electrical resistance element 17 of armoured impermeable type is contained (immersed in the diathermic oil) in the header 9, to heat the thermovector fluid (diathermic oil) contained in the conduits 5.
  • More than one resistance element can be provided, housed in one header, in both headers or in the conduits.
  • the present invention also relates to a process for producing a radiant plate radiator.
  • the process consists of forming grooves 3 in the plate 2; in the example of Figures 1 and 2 the grooves are two in number and U-bent while in the example of Figures 5 and 6 the grooves are four in number and are rectilinear (in other examples the number of grooves would be different depending on the number of conduits to be fixed to the plate, and could be of different shape).
  • thermovector fluid A conduit 5 for containing thermovector fluid is then inserted into each of these grooves.
  • the conduits 5 are inserted into the grooves 3 by pressing, without interposing adhesives, and preferably by rolling, to deform the conduits 5 such as to make their walls adhere perfectly to those of the grooves 3 into which they are inserted.
  • the header 9 is fixed to the conduits and is itself secured.
  • the water enters the radiator through the feed 12 as indicated by the arrow F1, it flows through the conduits 5 (as indicated by the arrows F2) to heat the radiant plate 2, then after returning to the header 9 it leaves the header 9 through the discharge 13.
  • the water enters the header 9 via the feed 12 (arrow F1), it passes through the conduits 5 (arrow F2) and leaves the header 15 via the discharge 13 (arrow F3).
  • the diathermic oil then heats the radiant plate 2.
  • the radiant plate radiator of the invention is particularly advantageous because it presents a very high thermal efficiency while at the same time there being no risk of detachment of the conduits from the grooves.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
  • Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
EP07108183A 2007-02-05 2007-05-14 Wärmestrahlender Plattenheizkörper und Herstellungsverfahren dafür Withdrawn EP1956332A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMI20070188 ITMI20070188A1 (it) 2007-02-05 2007-02-05 Radiatore a piastra irradiante e procedimento per la sua realizzazione

Publications (1)

Publication Number Publication Date
EP1956332A1 true EP1956332A1 (de) 2008-08-13

Family

ID=38230016

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07108183A Withdrawn EP1956332A1 (de) 2007-02-05 2007-05-14 Wärmestrahlender Plattenheizkörper und Herstellungsverfahren dafür

Country Status (3)

Country Link
EP (1) EP1956332A1 (de)
IT (1) ITMI20070188A1 (de)
RU (1) RU2007119068A (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2045554A2 (de) * 2007-10-02 2009-04-08 Ridea S.r.l. Heizung mit hoch wirksamer Heizplatte
ITUD20090178A1 (it) * 2009-10-08 2011-04-09 Milanese Claudio Ditta Individuale Radiatore termico per ambienti e relativo procedimento di realizzazione
CN105758226A (zh) * 2016-04-19 2016-07-13 上海浪超电子电器有限公司太仓分公司 一种用于室外的风冷散热器

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB693622A (en) 1949-03-08 1953-07-01 Houdaille Hershey Corp Improvements in or relating to a heat exchanger and method of making the same
WO2003001135A1 (es) 2001-05-01 2003-01-03 Romero Beltran Julian Intercambiador de calor del tipo placa-tubo
EP1568958A1 (de) 2004-02-25 2005-08-31 Zehnder Verkaufs- und Verwaltungs AG Heizkörper

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB693622A (en) 1949-03-08 1953-07-01 Houdaille Hershey Corp Improvements in or relating to a heat exchanger and method of making the same
WO2003001135A1 (es) 2001-05-01 2003-01-03 Romero Beltran Julian Intercambiador de calor del tipo placa-tubo
EP1568958A1 (de) 2004-02-25 2005-08-31 Zehnder Verkaufs- und Verwaltungs AG Heizkörper

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2045554A2 (de) * 2007-10-02 2009-04-08 Ridea S.r.l. Heizung mit hoch wirksamer Heizplatte
EP2045554A3 (de) * 2007-10-02 2012-11-07 Fecs Partecipazioni S.r.l. Heizung mit hoch wirksamer Heizplatte
ITUD20090178A1 (it) * 2009-10-08 2011-04-09 Milanese Claudio Ditta Individuale Radiatore termico per ambienti e relativo procedimento di realizzazione
CN105758226A (zh) * 2016-04-19 2016-07-13 上海浪超电子电器有限公司太仓分公司 一种用于室外的风冷散热器
CN105758226B (zh) * 2016-04-19 2018-05-22 上海浪超电子电器有限公司太仓分公司 一种用于室外的风冷散热器

Also Published As

Publication number Publication date
RU2007119068A (ru) 2008-11-27
ITMI20070188A1 (it) 2008-08-06

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