WO2012127508A1 - Élément de radiateur, radiateur et procédé de réalisation de celui-ci - Google Patents

Élément de radiateur, radiateur et procédé de réalisation de celui-ci Download PDF

Info

Publication number
WO2012127508A1
WO2012127508A1 PCT/IT2011/000076 IT2011000076W WO2012127508A1 WO 2012127508 A1 WO2012127508 A1 WO 2012127508A1 IT 2011000076 W IT2011000076 W IT 2011000076W WO 2012127508 A1 WO2012127508 A1 WO 2012127508A1
Authority
WO
WIPO (PCT)
Prior art keywords
cheek
facings
core
radiator
radiator element
Prior art date
Application number
PCT/IT2011/000076
Other languages
English (en)
Inventor
Giorgio LANCINI
Original Assignee
Lancini Giorgio
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 Lancini Giorgio filed Critical Lancini Giorgio
Priority to PCT/IT2011/000076 priority Critical patent/WO2012127508A1/fr
Publication of WO2012127508A1 publication Critical patent/WO2012127508A1/fr

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
    • 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
    • F28F1/20—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 being attachable to the element
    • 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
    • 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

Definitions

  • the present invention relates to a radiator element, suitable for being assembled in a bank, a radiator and method of realisation thereof.
  • radiators In the radiator sector it is known of to make radiators in various materials, such as for example in steel or aluminium. Steel is preferred to aluminium above all in applications wherein high-pressure fluid, up to several dozen bar, is made to circulate inside the radiators, inasmuch as having a higher mechanical resistance to aluminium.
  • high-pressure fluid up to several dozen bar
  • the use of steel determines a significant increase in the weight of the radiator, as well as reducing the energy output of the same in that steel has a lower heat transfer coefficient than aluminium.
  • figures 1-2 show perspective views, respectively in an assembled configuration and in separate parts, of a radiator element according to one embodiment of the present invention
  • figures 3-4 show perspective views, respectively in an assembled configuration and in separate parts, of a radiator element according to a further embodiment of the present invention.
  • figure 5 shows a side view of the element in figure 3, from the side shown by the arrow V in figure 3;
  • figure 6 shows a cross-section view of the element in figure 3, along the section plane VI-VI in figure 5;
  • figure 7 shows a cross-section view of the element in figure 3, along the section plane VII-VII in figure 3;
  • figure 8 shows a cross-section view of the element in figure 3, along the section plane VIII-VII in figure 5;
  • figures 9-10 show perspective views, respectively in' an assembled configuration and in separate parts, of a radiator element according to a further embodiment of the present invention.
  • figures 11-12 show perspective views, respectively in an assembled configuration and in separate parts, of a radiator element according to a further embodiment of the present invention.
  • figures 13-14 show perspective views, respectively in an assembled configuration and in separate parts, of a radiator element according to a further embodiment of the present invention.
  • figures 15-16 show perspective views, respectively in an assembled configuration and in separate parts, of a radiator element according to a further embodiment of the present invention.
  • figures 17-19 show perspective views of banks of radiator elements according to the present invention.
  • radiator element 4 globally denotes a radiator element for heating.
  • various embodiments of said radiator element are shown: such forms : should be considered as explanatory but: not exhaustive of all the possible embodiments of the present invention.
  • radiator elements positioned in a vertical configuration against the wall are always shown: such configuration should not be considered restrictive; in other words the present invention also applies to radiator elements of any type and positioned in any configuration.
  • the radiator element 4 comprises at least one core 8 having a cavity 12 suitable to be traversed by a radiant liquid, such as water or oil; radiant liquid is taken to mean any liquid, typically, but not solely, water or oil, suitable to be heated to enable heat transfer with the environment in which the radiator element is placed.
  • a radiant liquid such as water or oil
  • he core 8 has at least one entrance 16, to allow the input of liquid into the core 8 and at least one exit 20 to enable the expulsion of the liquid from the core 8.
  • a bank composed of various elements with a liquid running inside it, typically a diathermic oil and a resistor heating such liquid, may also be realised.
  • the core 8 comprises a tubular body 24 which extends from a first to a second axial end 26,28, in a longitudinal direction Y-Y, at said axial ends 26,28 the tubular body 24 comprising connection sleeves 32, suitable to permit fluidic connection with adjacent radiator elements 4.
  • the tubular body 24 has a circular cross-section, that is it is a cylindrical body obtained from a circular section pipe. Such indications should not be considered as restrictive; the tubular body may have different cross-sections such as quadrangular, square or oval cross-sections.
  • connection sleeves 32 are perpendicular to the tubular body 24, t hat is directed in a transversal direction X-X, perpendicular to said longitudinal direction Y-Y.
  • connection sleeves preferably have a circular cross-section, that is are cylindrical elements with a circular cross-section.
  • Such circular geometry as in the case of the tubular body 24, should, not be considered in a restrictive manner, but may be modified depending on specific requirements.
  • the core is made in a first material having a first heat transfer coefficient; typically the core is made in steel.
  • the radiator element 4 comprises a pair of cheek facings 40 at least partially joined to said core 8, the cheek facings 40 being made in a second material having a second heat transfer coefficient greater or the same as the first heat transfer coefficient of the core 8.
  • such material of the cheek facings 40 is die-cast aluminium or its alloy; obviously different materials may also be used, as in the case of the core 8.
  • the cheek facings 40 are joined to the core 8 so as to face it, and in particular are pressed in direct contact with the core 8 so that it is compressed between the cheek facings 40.
  • the coupling between the cheek facings 40 and the core 8 ensures continuous contact between the parts and allows relative sliding between the parts due to different heat distortion.
  • the cheek facings 40 are fixed onto the core 8 so as to ensure constant contact between the facings in all the functioning conditions of the radiator 4.
  • Such direct and continuous contact ensures heat transfer between the core 8 and the cheek facings 40 at all times so that these may diffuse heat into the outside environment.
  • both the core 8 and the cheek facings 40 tend to distort and dilate.
  • Such distortions and dilations differ in that the geometry and the materials composing the cores 8 and the cheek facings 40 are different.
  • the coupling between the core and the relative cheek facings while guaranteeing continuous contact of the parts, also permits sliding of the same to allow the different heat dilation caused by the different materials and geometry.
  • the cheek facings 40 are at least partially counter-shaped to the core 8 so as to face it while remaining in direct contact with the entire outer lateral surface of said core.
  • the cheek facings 40 comprise a semi- cylindrical casing portion so as to each cover half of the outer lateral wall of the tubular body 24 of the core 8.
  • the cheek facings 40 comprise attachment plates 44 suitable to permit reciprocal attachment around the core 8, said attachment plates 44 housing reciprocal attachment means 48 of the cheek facings 40.
  • said attachment means 48 comprise rivets, screws and/or bolts.
  • the attachment means traverse said attachment plates without intercepting the tubular body 24 which can thus slide in relation to the . facings after overcoming the forces of contact friction between the facings and the cores.
  • the attachment plates 44 of the cheek facings 40 are positioned along a transversal contact plane T, parallel to the transversal extension direction X-X of the connection sleeves 32.
  • the attachment plates 44 of the cheek facings 40 are positioned along a longitudinal contact plane L, perpendicular to the transversal extension direction X-X of the connection sleeves 32.
  • the cheek facings 40 are counter-shaped both to the tubular body 24 of the cores 8 and in relation to the connection sleeves 32 so as to face both the tubular body 24 and> at least partially, the sleeves.
  • the cheek facings 40 may be fitted with heat transfer fins 56 so as to facilitate heat transfer with the environment.
  • a cover panel 60 is joined to at least one cheek facing so as to conceal both the cheek facing 40 and the core 8.
  • at least one cheek facing 40 may be made in the form of a single bulkhead joined to the corresponding cheek facing 40 and subsequently covered by a cover panel (figures 9,10,11,12,13,14).
  • the panel cover 60 is slot or snap- attached to the relative cheek facing 40.
  • the cover panel 60 is made in one piece with the cheek facing 40 (figures 1-8) .
  • the cover panels may comprise grilles 61 for the passage of heat from the cheek facings 40 towards the outside environment.
  • the grilles 61 may even be applied or moulded directly onto the cheek facings 40 without the interposition of cover panels 60.
  • a plurality of radiator elements 4 may be assembled in a bank to form a radiator 64.
  • the cores 8 of adjacent radiator elements 4 are fluidically connected to each other for example by means of interposed bushes (not shown) ; alternatively the cores of adjacent elements may be welded together directly.
  • such bushes are screwed inside dedicated threads made inside the connection sleeves 32.
  • At least two cores 8 are prepared and placed alongside each other so as to fluidically connect them, for example by means of interposing relative connection bushes or the cores may be welded together directly.
  • the cores are obtained by cutting a tubular bar into pieces and subsequent welding; in other words starting from a bar for example in steel, the pieces relative to the tubular body 24 and connection sleeves 32 are cut and welded to each other to obtain the overall core 8. '
  • the cheek facings 40 preferably made by die- casting aluminium or an aluminium alloy, are . then predisposed.
  • he pairs of cheek facings 40 are then tightened together onto the cores 8 so as to entirely face them; in particular the attachment plates 44 are made to coincide and the cheek facings 40 tightened to each other by means of the attachment devices 48: the cores thereby being compressed between the respective cheek facings 40.
  • the bank of radiator elements 4 is thus ready for connection to a relative water supply.
  • cover panels 60 are foreseen, these may be joined to the front of the radiator 74 even after relative connection to the water supply.
  • the radiator has a heat transfer output comparable to that of the prior solutions comprising a core in steel embedded in a casting of aluminium.
  • Output is extremely high given that there is complete . adhesion between the core and the cheek comparable to that achievable in the solution of aluminium casting.
  • the cheek facings are attached onto the core according to a sandwich structure so as to compress said core between them: this way the heat output of the radiator improves considerably as contact between the surfaces of the core and the surfaces of the cheek facings is always ensured.
  • he solution according to the present invention ensures low production costs and practically zero production waste: in fact any imperfections in the realisation of the core are concealed by the cheek facings.
  • the cheek facings are rather obtained with extreme precision for example by means of the die- casting technique and may be directly painted or covered with the relative cover panels and any discards immediately re-melted without cost.
  • they also ensure r a reduction in weight of the radiator element, since the quantity of aluminium or alloy used to cover the cores is less than that which would be used to perform a casting of material.
  • a person skilled in the art may make numerous modifications and variations to the radiator solutions and relative methods of realisation described above so as to satisfy contingent and specific requirements, all contained within the sphere of protection as defined by the appended claims.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)

Abstract

L'invention concerne un élément de radiateur (4) comprenant au moins une partie centrale (8) traversée par un liquide rayonnant, constitué d'un premier matériau ayant un premier coefficient de transfert thermique. L'élément de radiateur (4) comprend en outre une paire de revêtements de joue (40) joints au moins partiellement à ladite partie centrale (8), les revêtements de joue (40) étant constitués d'un second matériau ayant un second coefficient de transfert thermique supérieur ou égal au premier coefficient de transfert thermique de la partie centrale (8). Les revêtements de joue (40) sont joints à la partie centrale (8) de façon à lui faire face, et sont pressés en contact direct avec la partie centrale (8) de sorte que cette dernière soit comprimée entre les revêtements de joue (40). L'accouplement entre les revêtements de joue (40) et la partie centrale (8) assure un contact continu entre les parties et permet un coulissement relatif entre les parties provoqué par les différentes déformations à la chaleur de celles-ci.
PCT/IT2011/000076 2011-03-18 2011-03-18 Élément de radiateur, radiateur et procédé de réalisation de celui-ci WO2012127508A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/IT2011/000076 WO2012127508A1 (fr) 2011-03-18 2011-03-18 Élément de radiateur, radiateur et procédé de réalisation de celui-ci

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IT2011/000076 WO2012127508A1 (fr) 2011-03-18 2011-03-18 Élément de radiateur, radiateur et procédé de réalisation de celui-ci

Publications (1)

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WO2012127508A1 true WO2012127508A1 (fr) 2012-09-27

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3082291A1 (fr) * 2018-06-06 2019-12-13 Texas De France (Sas) Radiateur electrique comportant une facade avant composee d'elements de facade modulaires.
RU198603U1 (ru) * 2019-10-22 2020-07-20 Акционерное общество "Златоустовский машиностроительный завод" Теплообменная панель для радиатора отопления

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2308480A1 (de) * 1973-02-21 1974-08-22 Hans Viessmann Waermetauscher
FR2371643A1 (fr) * 1976-11-22 1978-06-16 Alusuisse Radiateur en aluminium a toles de recouvrement fixees par serrage
DE4108763A1 (de) * 1991-03-18 1992-09-24 Schiedel Gmbh & Co Radiator fuer raumtemperierung sowie verfahren und vorrichtung zum herstellen von sektionen des radiators
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
FR2824386A1 (fr) * 2001-05-03 2002-11-08 Alain Laurent Galmes Radiateur convecteur electrique et mixte
EP2146170A1 (fr) * 2008-07-15 2010-01-20 Tesy Ood Élément de radiateur et bloc pour radiateur

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2308480A1 (de) * 1973-02-21 1974-08-22 Hans Viessmann Waermetauscher
FR2371643A1 (fr) * 1976-11-22 1978-06-16 Alusuisse Radiateur en aluminium a toles de recouvrement fixees par serrage
DE4108763A1 (de) * 1991-03-18 1992-09-24 Schiedel Gmbh & Co Radiator fuer raumtemperierung sowie verfahren und vorrichtung zum herstellen von sektionen des radiators
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
FR2824386A1 (fr) * 2001-05-03 2002-11-08 Alain Laurent Galmes Radiateur convecteur electrique et mixte
EP2146170A1 (fr) * 2008-07-15 2010-01-20 Tesy Ood Élément de radiateur et bloc pour radiateur

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3082291A1 (fr) * 2018-06-06 2019-12-13 Texas De France (Sas) Radiateur electrique comportant une facade avant composee d'elements de facade modulaires.
RU198603U1 (ru) * 2019-10-22 2020-07-20 Акционерное общество "Златоустовский машиностроительный завод" Теплообменная панель для радиатора отопления

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