EP0854347B1 - Verfahren zur Herstellung von Heizkörpergliedern - Google Patents

Verfahren zur Herstellung von Heizkörpergliedern Download PDF

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Publication number
EP0854347B1
EP0854347B1 EP98830019A EP98830019A EP0854347B1 EP 0854347 B1 EP0854347 B1 EP 0854347B1 EP 98830019 A EP98830019 A EP 98830019A EP 98830019 A EP98830019 A EP 98830019A EP 0854347 B1 EP0854347 B1 EP 0854347B1
Authority
EP
European Patent Office
Prior art keywords
radiant
channels
heads
cavity
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.)
Expired - Lifetime
Application number
EP98830019A
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English (en)
French (fr)
Other versions
EP0854347A3 (de
EP0854347A2 (de
Inventor
Valter Lolli
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Individual
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Individual
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Filing date
Publication date
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Publication of EP0854347A3 publication Critical patent/EP0854347A3/de
Application granted granted Critical
Publication of EP0854347B1 publication Critical patent/EP0854347B1/de
Anticipated expiration legal-status Critical
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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
    • 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
    • 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
    • F28F9/02—Header boxes; End plates
    • 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
    • F28F9/02—Header boxes; End plates
    • F28F9/04—Arrangements for sealing elements into header boxes or end plates
    • F28F9/16—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling
    • F28F9/162—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by using bonding or sealing substances, e.g. adhesives
    • 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
    • F28F9/02—Header boxes; End plates
    • F28F9/04—Arrangements for sealing elements into header boxes or end plates
    • F28F9/16—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling
    • F28F9/165—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by using additional preformed parts, e.g. sleeves, gaskets
    • 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
    • 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 method of producing thermal radiators according to the preamble of claim 1. Such a method is known for instance from FR-A-1 201 614.
  • Thermal equipment industry in particular for domestic heating, uses radiators formed by tubular radiant elements arranged vertically and equipped at their ends with relative heads that define suitable reciprocal connection means; the heads are connected one to another by e.g. threaded couplings, provided with suitable sealing means.
  • the above mentioned radiant groups are entirely obtained by die-casting or otherwise made of a pair of heads obtained by die-casting, to which a tubular element is connected; in some cases the tubular element is suitably finned so as to improve heat diffusion.
  • the radiant groups obtained in this way are usually expensive.
  • Document FR-A-1.201.614 relates to a composite element for thermal radiators.
  • a head element is provided, by which four pipes are connected to each other at their ends.
  • the head element is made by die casting a fusible material, leaving an hollow space therein.
  • the hollow space inside the head element is obtained by inserting a core that is broken in small pieces, after the head element has cooled, to take it out therefrom.
  • the inside of the head element is therefore not well clean, smooth and perfectly formed. Pieces of the core can remain inside the head element, thus provoking problems during operation or requiring further cleaning operation. Smoothing, finishing and cleaning must be performed while working inside the hollow of the head element, which is rather complicated.
  • Document FR-A-1.425.677 discloses a tubular radiator in which vertical pipes are connected to head elements by means of gluing.
  • the object of the present invention is to provide a method which allows to obtain cheap end heads for radiant groups of thermal radiators.
  • Another object of the present invention is to provide a method for producing safe to use and highly efficient end heads for thermal radiators in simple and economical way.
  • the subject method includes first, die-casting of the bodies 20 of a pair of end heads 2 of a radiant group 1. These heads are preferably made of aluminium.
  • Each body 20 has a flattened form, with outer corners suitably rounded, and has a cavity 21 extending on a median plane from its top narrow surface.
  • An opening 25 extends along the top surface of the body 20, so that the cavity is open to the outside. The edges of the opening 25 are bevelled.
  • the channels 22 have circular section and limited axial extension. Moreover, on their inner surface, the channels 22 feature respective shoulders 24.
  • the cavity 21 communicates also with a pair of pipe stubs 23, extending from opposite sides of the body 20.
  • the axis of each pipe stub is perpendicular to the median pane of the body.
  • the inner surface of the pipe stubs 23 is threaded, so as to form threaded sections 26, so that respective couplings 4 can be screwed thereto for connecting two or more adjacent radiant groups 1.
  • the cavity 21 of the body 20 is closed on the side opposite to the channels 22 by a shaped plate 28, whose form is complementary to the opening 25; the closing plate 28 is firmly joined to the body 20 by a peripheral welding 29 (Fig. 4).
  • the closing plate 28 has preferably a rounded profile, so as to reconstruct the continuity of the outer surface of said head 2.
  • the so made heads 2 are firmly joined by the channels 22 to the opposite ends of a corresponding plurality of tubular radiant elements 3, arranged coaxial to the same channels 22 (Fig. 5).
  • the tubular elements 3 are preferably obtained by extrusion.
  • the tubular radiant elements 3 are aimed at being tightly introduced inside the channels 22 and, at their ends, these elements 3 are provided with respective tapered mouths 30, which engage with the narrow part of these channels 22 defined by the relative shoulders 24.
  • Respective gaskets 31 are mounted on the mouths 30 for keeping them tight against the above mentioned shoulders 24.
  • the tubular radiant elements 3 are firmly joined to the heads 2 by suitable glues, spread on the coupling housings defined by the channels 22 of the heads 2.
  • the so obtained radiant group 1 is put in a vice equipped with a centring device 10 which precisely determines the distance between the centres of said threaded pipe stubs 23 of the heads 2 (Fig. 6).
  • the device 10 is substantially formed by a frame 11 equipped, on its ends, with a pair of pegs 12, protruding transversally and aimed at engaging said pipe stubs 23 of the heads 2 of the radiant group 1.
  • the distance between the pegs 12 is adjustable.
  • the device 10 supports respective vices 13 which clamp the above mentioned heads 2 of the radiant group 1.
  • the radiant group 1 is mounted on the device 10 by introducing the pegs 12, whose distance is precisely determined, into the pipe stubs 23 of the heads 2 and then by tightening these heads 2 between the vices 13 (Fig. 7).
  • the radiant group 1 is kept in the vice for a period of time sufficient for completing the step of gluing the tubular elements 3 to the heads 2.
  • the couplings 4 feature, in known way, sections threaded in opposite directions, separated by the above mentioned seal 5.
  • the couplings 4 are preferably obtained from a metallic sheet, as disclosed in the Patent Application No. BO95A 000175, filed by the same Applicant.
  • the subject method allows to obtain, in a simple way, radiant groups for heat radiators, formed by a pair of end die-cast heads and a plurality of tubular radiant elements.
  • the above mentioned radiant groups support three tubular elements between the heads.
  • tubular elements arranged in line can be provided, the number of which depends on requirements.
  • tubular elements can be arranged not only in one line, but also in two or more lines, by providing the end heads with a corresponding number of channels connecting with these tubular elements.
  • the length of the tubular elements can vary in relation to use specifications.
  • the last feature results in advantageous lightness of the radiant groups, which facilitates their transport and assembling.
  • the claimed invention provides for an opening made in the top wall of the end head.
  • the opening left in the top wall permits to obtain the inside hollow by means of a rigid core, which is made from hard material.
  • the rigid core can be very smooth and is each time surely fully removed. Therefore, the head thus obtained do not need any operation in the inside, neither cleaning nor finishing.
  • the position of the opening, the top wall makes it possible to place therein a plate, e.g. with slanting edges, and to weld it very easily. Then a finishing operation is required, e.g. machining, to smooth the region of the welding, but these operation are carried out on the outside of the head, therefore very easily and quickly. Moreover, the result of the further operation is readily apparent without any need of special devices do get sight of the inside of the head. There is also no risk of leaving a part of the core inside the head.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)
  • Combustion Of Fluid Fuel (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Control Of Heat Treatment Processes (AREA)

Claims (3)

  1. Verfahren zum Herstellen von Kopfstücken für Heizkörperglieder von Heizkörpern, welches Verfahren die folgenden Schritte aufweist:
    das Gehäuse (20) eines Paares von Kopfstücken (2) eines Heizkörpergliedes (1) wird gegossen, wobei jedes der Gehäuse (20) einen Innenraum (20) und mehrere parallele Kanäle (22) hat, die darin gebildet sind und durch den Innenraum miteinander in Verbindung stehen, und wobei zwei Rohrstutzen (23) von entgegengesetzten Seiten des Gehäuses (20) aus verlaufen und in den Innenraum hinein offen sind;
    die Rohrstutzen (23) werden mit Gewinde versehen, so dass entsprechende Kupplungen (4) zwecks Verbindung mit benachbarten Heizkörpergliedern (1) mit ihnen verschraubt werden können;
    die schräg verlaufenden Anschlussöffnungen (30) entsprechender Heizkörper-Rohrstücke (3) werden mit den Kanälen (22) der Kopfstücke (2) fest verbunden, so dass die Rohrstücke koaxial zu den Kanälen (22) angeordnet sind;
    welches Verfahren dadurch gekennzeichnet ist, dass der Innenraum (21) des Gehäuses (20) im Bereich der Oberseite des Gehäuses eine Öffnung (25) hat, die dann von einer geformten Platte (28) verschlossen wird, deren Form komplementär zu der Öffnung (25) des Innenraums (21) ist, wobei die Verschlussplatte (28) mit dem Gehäuse (20) durch eine Umfangsschweißung (29) fest verbunden wird, um die Kontinuität der Außenfläche des Kopfstückes (2) wieder herzustellen.
  2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die entsprechenden Rohrstücke (3) mit den Kanälen (22) der Kopfstücke (2) dadurch verbunden werden, dass sie mit den von diesen Kanälen (22) gebildeten Kupplungsgehäusen verklebt werden, wobei die Kupplungsgehäuse Schultern (24) haben, die entsprechende verengte Abschnitte der Kanäle (22) bilden, an denen die schräg verlaufenden Anschlussöffnungen (30) der Rohrstücke (3) angreifen.
  3. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass während der Verbindung der Rohrstücke (3) mit den Kanälen (22) das Heizkörperglied (1) in einen Spannrahmen an einer Zentriervorrichtung (10) eingesetzt wird, die den Abstand zwischen den Mittelpunkten der mit Gewinde versehenen Rohrstutzen (23) der Kopfstücke (2) aufrecht erhält, wobei die Zentriervorrichtung (10) an ihren Enden mit zwei Dornen (12) versehen ist, die in Querrichtung und mit verstellbarem Abstand vorstehen, um mit den Rohrstutzen (23) in Eingriff zu treten.
EP98830019A 1997-01-20 1998-01-20 Verfahren zur Herstellung von Heizkörpergliedern Expired - Lifetime EP0854347B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITBO970023 1997-01-20
IT97BO000023A IT1290645B1 (it) 1997-01-20 1997-01-20 Metodo per la realizzazione di gruppi radianti per radiatori termici.

Publications (3)

Publication Number Publication Date
EP0854347A2 EP0854347A2 (de) 1998-07-22
EP0854347A3 EP0854347A3 (de) 1999-06-09
EP0854347B1 true EP0854347B1 (de) 2002-05-15

Family

ID=11341861

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98830019A Expired - Lifetime EP0854347B1 (de) 1997-01-20 1998-01-20 Verfahren zur Herstellung von Heizkörpergliedern

Country Status (4)

Country Link
EP (1) EP0854347B1 (de)
DE (1) DE69805336T2 (de)
ES (1) ES2175648T3 (de)
IT (1) IT1290645B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4471364A1 (de) * 2023-05-30 2024-12-04 Toussaint Cumbo Modularer hybridheizkörper

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1070930A1 (de) * 1999-07-17 2001-01-24 Zehnder Verkaufs- und Verwaltungs AG Verfahren zur Herstellung von Rohrradiatoren
ITBO20010375A1 (it) * 2001-06-13 2002-12-13 Valter Lolli Metodo per la realizzazione di elementi di testa per radiatori termici, ed elemento di testa realizzato con tale metodo
EP1995546A1 (de) * 2007-05-25 2008-11-26 Irsap Spa Verfahren zur Herstellung eines Radiators und Radiator
ITMI20081168A1 (it) * 2008-06-26 2009-12-27 Fondital Spa Elemento di radiatore da riscaldamento a protezione totale anti-corrosione, e metodo di trattamento anti-corrosione di elementi di radiatori da riscaldamento
EA019174B1 (ru) * 2009-05-12 2014-01-30 Стилиак С.П.А. Подводящий или отводящий коллектор отопительных трубчатых радиаторов и способ его изготовления
ITMI20131806A1 (it) * 2013-10-30 2015-05-01 Fondital Spa Radiatore tubiero da riscaldamento e metodo per fabbricare un radiatore tubiero da riscaldamento
EP3062051A1 (de) * 2015-02-24 2016-08-31 W-A Progettazioni S.r.l. Modul zum herstellen von strahlungskörpern, damit hergestellte strahlungskörper und verfahren zur herstellung des moduls
ITUA20163619A1 (it) 2016-05-19 2017-11-19 W A Progettazioni S R L Corpo radiante e metodo per la realizzazione dello stesso corpo radiante.
IT201900002883A1 (it) 2019-02-28 2020-08-28 W A Progettazioni S R L Testata per radiatori termici e metodo per realizzare tale testata.
TR202013063A2 (tr) * 2020-08-19 2020-10-21 Roezmas Metal San Ve Tic A S Radyatör ara bağlanti aparati ve ara bağlanti aparati üreti̇m yöntemi̇

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR801452A (fr) * 1936-01-31 1936-08-05 Electricite Et Electromecaniqu Corps échangeur de chaleur
FR1201614A (fr) * 1958-07-05 1960-01-04 éléments composites de radiateurs de chauffage central
FR1425677A (fr) * 1965-02-16 1966-01-24 Buderus Eisenwerk Radiateur tubulaire
DE2157266A1 (de) * 1970-11-24 1972-05-31 Societa accomandita semplice FARAL di Mariani & C, Campogalliano, Modena (Italien) Heizkörperelement
FR2119405A5 (de) * 1971-12-07 1972-08-04 Unicum Sa
IT977937B (it) * 1973-03-01 1974-09-20 Davico Livio Radiatori per impianti di riscaldamento

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4471364A1 (de) * 2023-05-30 2024-12-04 Toussaint Cumbo Modularer hybridheizkörper

Also Published As

Publication number Publication date
EP0854347A3 (de) 1999-06-09
ES2175648T3 (es) 2002-11-16
ITBO970023A1 (it) 1998-07-20
DE69805336T2 (de) 2002-11-28
IT1290645B1 (it) 1998-12-10
EP0854347A2 (de) 1998-07-22
ITBO970023A0 (it) 1997-01-20
DE69805336D1 (de) 2002-06-20

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