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WO2014080363A1 - Élément de radiateur chauffant à double chambre constitué d'aluminium coulé sous pression et procédé de fabrication de celui-ci - Google Patents

Élément de radiateur chauffant à double chambre constitué d'aluminium coulé sous pression et procédé de fabrication de celui-ci Download PDF

Info

Publication number
WO2014080363A1
WO2014080363A1 PCT/IB2013/060316 IB2013060316W WO2014080363A1 WO 2014080363 A1 WO2014080363 A1 WO 2014080363A1 IB 2013060316 W IB2013060316 W IB 2013060316W WO 2014080363 A1 WO2014080363 A1 WO 2014080363A1
Authority
WO
WIPO (PCT)
Prior art keywords
chambers
radiator element
conduit
auxiliary conduit
joint
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.)
Ceased
Application number
PCT/IB2013/060316
Other languages
English (en)
Inventor
Orlando NIBOLI
Fabio Sassi
Maurizio BOLOGNA
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.)
Fondital SpA
Original Assignee
Fondital SpA
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 Fondital SpA filed Critical Fondital SpA
Publication of WO2014080363A1 publication Critical patent/WO2014080363A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
    • F28F9/262—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators for radiators
    • 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
    • F28D1/053—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 straight
    • F28D1/05308—Assemblies of conduits connected side by side or with individual headers, e.g. section type radiators
    • 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
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0035—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for domestic or space heating, e.g. heating radiators

Definitions

  • the present invention relates to a double chamber heating radiator element made of die-casted aluminium.
  • a die-casted aluminium radiator normally consists of a battery of elements coupled to each other to form a radiator of suitable dimensions; each element has an aluminium body that extends generally along an axis (vertical in use) and inside which there are, for the circulation of heating water, a longitudinal water chamber and a pair of transverse joint conduits, placed at respective opposite axial ends of the body.
  • double-chamber radiator elements i.e. having two longitudinal chambers arranged side by side.
  • the two chambers are generally parallel and close one to the other and converge and join directly into one of the joint conduits, usually the one arranged at the upper end of the element. At the other end (usually the bottom one) , the two chambers are combined into one open end, which then has to be closed by a suitable terminal element.
  • the present invention therefore relates to a double chamber heating radiator element made of die-casted aluminium essentially as defined in appended claim 1 and, for its preferred aspects, in the dependent claims.
  • the invention then relates to the manufacturing method for said radiator element, as defined in claim 11.
  • the radiator element of the invention made by die-casting technique in a relatively simple manner, has a high heat exchange efficiency.
  • FIG. 1 is a side elevation view of a heating radiator element according to a first embodiment of the invention
  • FIG. 2 is a rear view of the radiator element of figure 1;
  • FIG. 3 is a view in longitudinal section (according to the plane III-III of Figure 2) and with parts removed for clarity, of the radiator element of figure 1;
  • FIG. 4 is a bottom view of the radiator element of figure 1;
  • FIGS. 5 and 6 are respectively a side elevation view and a rear view of a heating radiator element according to a second embodiment of the invention.
  • FIG. 7 is a view in longitudinal section (along the line plane VII -VII of Figure 6) and with parts removed for clarity, of the radiator element of Figures 5 and 6.
  • a double-chamber heating radiator element 1 made of die-casted aluminium comprises a body 2, preferably monolithic, that is made of die-casted aluminium and extends between two opposite longitudinal ends 3, 4 which are, in use, a top end 3 and a lower end 4 respectively.
  • the body 2 comprises two water chambers 5, 6 for water circulation, an auxiliary conduit 7 which connects the chambers 5, 6 to one of the end 3, 4, and two transverse joint conduits 8, 9, placed at respective ends 3, 4 of the body 2 and which extend between two opposite lateral sides 10 of the body 2.
  • the body 2 comprises also a front plate 11 and a rear plate 12 , set along the body 2 between the ends 3 , 4 , and for example substantially parallel to each other and to the chambers 5, 6 and a plurality of fins 13 for heat exchange variously arranged on the body 2.
  • one or both plates 11, 12 are formed by plate sections 14 longitudinally spaced from one another and separated from one another by slits 15 (in the illustrated non- limiting example, the front plate 11 is continuous, while the rear plate 12 is formed by plate sections 14) .
  • the chambers 5, 6 are substantially parallel to each other and extend along respective parallel axes A, B (vertical in use) ; the chambers 5, 6 are parallel and separated from each other along the whole axial length of the chambers 5, 6; the chambers 5, 6 are arranged one behind the other between the front plate 11 and the rear plate 12 and are substantially aligned along a middle plane P of the body 2 and of the radiator element 1; the plane P contains the axes A, B (which lie on the plane P) and is substantially perpendicular to the plates 11, 12.
  • the chambers 5, 6 are radially delimited by respective lateral walls 16 arranged around the axes A, B.
  • the chambers 5 , 6 are tapered towards one of the ends 3 , 4 and precisely towards the end 3 that is provided with the auxiliary conduit 7, i.e., in the example shown, towards the upper end 3.
  • the chambers 5, 6 have an internal cross-section gradually decreasing from the end - 4 towards the end 3.
  • Each chamber 5, 6 comprises a main portion 17, that extends along most of the body 2 and slightly tapers towards the end 3, and a terminal portion 18, arranged at the end 3 and that has a tapering more pronounced than the main portion 17.
  • the terminal portions 18 are aligned to the respective main portions 17 along the respective axes A, B.
  • each chamber 5, 6 comprises also a head portion 19, arranged at the end 4 and tapered towards the end .3, with a more pronounced tapering than the main portion 17.
  • the chambers 5, 6 are joined to the auxiliary conduit 7 that, in the example illustrated in Figures 1-3, is arranged at the top end 3 of the body 2; in particular, the end portions 18 of the chambers 5, 6 communicate with the auxiliary conduit 7 via respective openings 20 spaced along the auxiliary conduit 7.
  • the chambers 5, 6 then communicate with each other via the auxiliary conduit 7.
  • the auxiliary conduit 7 extends substantially perpendicular to the chambers 5, 6 and along an axis Z substantially perpendicular to the axes A, B of the chambers 5, 6.
  • the auxiliary conduit 7 is a dead duct, being formed in the body 2 between a front opening 21 and a rear wall 22 defined by a portion of the body 2; the opening 21 is closed, in use, by a cap 23.
  • the chambers 5, 6, the auxiliary conduit 7 and the joint conduits 8, 9 define a hydraulic circuit inside the radiator element 1, for the circulation of a stream of water in the radiator element 1; in particular, the chambers 5, 6 and the auxiliary conduit 7 define a loop structure between the joint conduits 8, 9.
  • the joint conduits 8, 9 are arranged at respective ends 3, 4 of the body 2 and are substantially parallel to each other and perpendicular to the chambers 5, 6 (and therefore to the axes A, B) and to the auxiliary conduit 7.
  • the joint conduits 8, 9 extend along respective axes X parallel one to the other and substantially perpendicular to the axes A, B of the chambers 5, 6, and to the axis Z of the auxiliary conduit 7; each joint conduit 8, 9 extends between a pair of opposing side openings 24, delimited by respective collars 25 arranged on opposite sides of the body 2 and which serve to connect the radiator element 1 to other similar elements and/or to an external hydraulic system, or are closed by caps (not shown) .
  • the other joint conduit 9, arranged at the lower end 4 directly connects the chambers 5, 6, and precisely the head portions 19 of the chambers 5, 6; the head portions 19 are arranged oh opposite sides of the joint conduit 9, which is substantially perpendicular to the chambers 5, 6, and communicate with the joint conduit 9 via respective passages 27 formed in the lateral walls 16 of the chambers 5, 6.
  • the chambers 5, 6, and precisely the head portions 19 have, at the end 4 of the body 2, respective bottom openings 28, distinct and spaced one from the other and which are closed, in use, by respective caps 29 (shown in Figure 4) .
  • the chambers 5, 6 are arranged, in respect of the standard dimensions of the radiator element 1, in close proximity of respective plates 11, 12; each plate 11, 12 extends directly from the side wall 16 of a chamber 5, 6, or is connected to the side wall 16 via a ridge 31 which serves mainly to compensate for the tapering of the chambers 5, 6.
  • Each ridge 31 has therefore a depth (measured between one chamber 5, 6 and the respective plate 11, 12) of a few millimeters; indicatively, each ridge 31 has an average depth (average value over the entire length of the ridge) less than 10 mm and preferably less than about 5 mm.
  • the position of the chambers 5, 6 with respect to the plates 11, 12 improves the heat exchange efficiency of the radiator element 1, as the plates 11, 12 are directly in contact, or at least in close proximity, with the chambers 5, 6 wherein the hot water circulates .
  • the conformation of the chambers 5, 6, which are separated and arranged side by side for their entire length and therefore also, in particular, to the ends 3, 4 of the radiator element 1, allows to fully exploit even the heat exchange at both ends , 4 , f rther improving the thermal performance of the radiator element 1.
  • the chambers 5, 6 are connected mechanically by a central rib 32, substantially set along the middle plane P and perpendicular to the plates 11, 12; the rib 32, as the plates 11, 12 and the fins 13, is a solid element (where water does not circulate) .
  • the rib 32 is provided with through openings 33, formed through the rib 32 and spaced longitudinally (i.e. in a direction parallel to the chambers 5, 6 and to the axes A, B) and which subdivide the rib 32 in rib portions 34.
  • the rib portions 34 acting also as heat transfer fins, have a high efficiency because they are directly served by both chambers 5 , 6 wherein hot water circulates .
  • the radiator element 1 is made by die casting.
  • the manufacturing method of the radiator element 1 essentially comprises the steps of :
  • a mould comprising: a seat having a shape corresponding to the shape of the body 2, and a plurality of movable inserts, which are movable in the seat and define respective hollow parts of the body 2, in particular the chambers 5, 6, the auxiliary conduit 7 and the joint conduits 8, 9;
  • the auxiliary conduit 7 can also be placed at the lower end 4 of the body 2; in a variant not shown, the radiator element 1 is provided with two auxiliary conduits 7 arranged at the respective opposite longitudinal ends 3, 4 of the body 2.
  • both the auxiliary conduits 7 can be made as described above, it may be more convenient to obtain by die-casting the body 2 provided with only one auxiliary conduit 7 (as described above) , and then obtain the second auxiliary conduit 7 by mechanical machining, perforating the body 2 and removing excess material.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
  • Resistance Heating (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

L'invention concerne un élément de radiateur chauffant (1) à double chambre constitué d'aluminium coulé sous pression comprenant un corps (2) en aluminium coulé sous pression et comprenant deux chambres à eau internes (5, 6) pour la circulation d'eau, sensiblement parallèles l'une à l'autre, une première et une deuxième conduite de jonction (8, 9), respectivement disposées à une première et à une deuxième extrémité (3, 4) du corps (2) entre deux côtés latéraux opposés (10) du corps (2) et sensiblement parallèles l'une à l'autre et perpendiculaires aux chambres (5, 6), et une conduite auxiliaire (7) qui est disposée à la première extrémité (3) du corps (2) et qui est sensiblement perpendiculaire aux chambres (5, 6) et aux conduites de jonction (8, 9), et qui relie les chambres (5, 6) l'une à l'autre et à la première conduite de jonction (8) montée à la même première extrémité (3) du corps (2).
PCT/IB2013/060316 2012-11-21 2013-11-21 Élément de radiateur chauffant à double chambre constitué d'aluminium coulé sous pression et procédé de fabrication de celui-ci Ceased WO2014080363A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI2012A001977 2012-11-21
IT001977A ITMI20121977A1 (it) 2012-11-21 2012-11-21 Elemento di radiatore da riscaldamento a doppia camera realizzato in alluminio pressofuso e relativo metodo di fabbricazione

Publications (1)

Publication Number Publication Date
WO2014080363A1 true WO2014080363A1 (fr) 2014-05-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2013/060316 Ceased WO2014080363A1 (fr) 2012-11-21 2013-11-21 Élément de radiateur chauffant à double chambre constitué d'aluminium coulé sous pression et procédé de fabrication de celui-ci

Country Status (2)

Country Link
IT (1) ITMI20121977A1 (fr)
WO (1) WO2014080363A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104896570A (zh) * 2015-06-13 2015-09-09 河北永创生物质燃料炉具有限公司 一种双柱暖气片及其制作方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2260077A1 (fr) * 1974-02-01 1975-08-29 Perani Fond Spa
EP0772020A2 (fr) * 1995-10-30 1997-05-07 Lo.Met Loreto Metalli S.p.A. Procédé de fabrication d'éléments de radiateur modulaires, symétriques, en aluminium moulé par injection
EP0816791A1 (fr) * 1996-07-04 1998-01-07 S.I.R.A. Spa Méthode de montage de tubes d'acier dans un radiateur modulaire en aluminium coulé
FR2842587A1 (fr) * 2002-11-28 2004-01-23 Euro Fontal Radiateur de chauffage central a resistance electrique incorporee et fluide caloporteur
WO2011045653A2 (fr) * 2009-10-13 2011-04-21 Fondital S.P.A. Élément radiateur chauffant

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2260077A1 (fr) * 1974-02-01 1975-08-29 Perani Fond Spa
EP0772020A2 (fr) * 1995-10-30 1997-05-07 Lo.Met Loreto Metalli S.p.A. Procédé de fabrication d'éléments de radiateur modulaires, symétriques, en aluminium moulé par injection
EP0816791A1 (fr) * 1996-07-04 1998-01-07 S.I.R.A. Spa Méthode de montage de tubes d'acier dans un radiateur modulaire en aluminium coulé
FR2842587A1 (fr) * 2002-11-28 2004-01-23 Euro Fontal Radiateur de chauffage central a resistance electrique incorporee et fluide caloporteur
WO2011045653A2 (fr) * 2009-10-13 2011-04-21 Fondital S.P.A. Élément radiateur chauffant

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104896570A (zh) * 2015-06-13 2015-09-09 河北永创生物质燃料炉具有限公司 一种双柱暖气片及其制作方法
CN104896570B (zh) * 2015-06-13 2017-10-13 河北永创生物质燃料炉具有限公司 一种双柱暖气片及其制作方法

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Publication number Publication date
ITMI20121977A1 (it) 2014-05-22

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