EP0162271A2 - Method for the manufacture of a flat radiator - Google Patents

Method for the manufacture of a flat radiator Download PDF

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Publication number
EP0162271A2
EP0162271A2 EP85104469A EP85104469A EP0162271A2 EP 0162271 A2 EP0162271 A2 EP 0162271A2 EP 85104469 A EP85104469 A EP 85104469A EP 85104469 A EP85104469 A EP 85104469A EP 0162271 A2 EP0162271 A2 EP 0162271A2
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EP
European Patent Office
Prior art keywords
return
flow
sheet metal
metal parts
welded
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.)
Granted
Application number
EP85104469A
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German (de)
French (fr)
Other versions
EP0162271A3 (en
EP0162271B1 (en
Inventor
Harald Klostermann
Helmut Leggemann
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.)
Baufa-Werke Richard Rinker GmbH
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Baufa-Werke Richard Rinker GmbH
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Publication date
Application filed by Baufa-Werke Richard Rinker GmbH filed Critical Baufa-Werke Richard Rinker GmbH
Priority to AT85104469T priority Critical patent/ATE35736T1/en
Publication of EP0162271A2 publication Critical patent/EP0162271A2/en
Publication of EP0162271A3 publication Critical patent/EP0162271A3/en
Application granted granted Critical
Publication of EP0162271B1 publication Critical patent/EP0162271B1/en
Expired 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
    • F28D1/03—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 plate-like or laminated conduits
    • F28D1/0308—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 plate-like or laminated conduits the conduits being formed by paired plates touching each other
    • F28D1/0325—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 plate-like or laminated conduits the conduits being formed by paired plates touching each other the plates having lateral openings therein for circulation of the heat-exchange medium from one conduit to another
    • 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 invention relates to a flat radiator, the front wall and the rear wall of which are each formed by a profiled sheet metal part, with a flow and a return, with channels separated by beads, arranged parallel to one another between flow and return, and with connections to flow and return in the front wall and / or the rear wall, the sheet metal parts being embossed mirror-symmetrically in the same sheet, folded to form the channels, the forward and return flow to the front and rear walls and welded to one another.
  • the end faces are each closed with a blind cap, the outline of which is equal to the cross-section of the flow and return, which are mirror images of one another.
  • the insertion and welding of the blind caps is problematic. A machine for this work had an error rate that was too high; therefore it is inserted and welded in by hand. The effort involved is considerable and the quality of the Welding randomly and differently.
  • the closing of the end faces of the flow and return is the last step due to the manufacturing process: To attach the connections to the front wall and / or the rear wall of the flat radiator, a copper core is inserted in the flow and return to attach the connections using the pressure welding process to be able to.
  • the copper core must be removed again; this is only possible through the front opening.
  • the use of a welding aid in the form of an insert in the flow and in the return leads to a reduction in the cross-section in the flow and in the return, thus clogging the openings, which gives rise to complaints.
  • the invention seeks to remedy this.
  • the invention as characterized in the claims, solves the problem of creating a flat radiator which, while retaining the advantages of a rounded top, the pressure welding process without welding aid and the unimpeded flow of the heating medium, no longer requires caps, even in the area of the connections .
  • a round seam is to be understood as a weld seam that runs in the area of the rounded corner of the radiator from the top edge to the top edge. To facilitate bending and to achieve a clean joining, it is advantageous to provide the back of the lead with a recess at the ends before bending.
  • the flat heater according to the invention has all the advantages of the known flat heater of the type mentioned. It eliminates its disadvantages caused by insertion the blind caps are created. Rather, blind caps are completely avoided. In its place, there is a rounded, parallel compressed edge area, which is welded as a vertical seam, without the formation of a sharp edge in the form of a circular seam. Compared to the known flat radiator, the effort is significantly reduced. The edges of the sheet metal parts bent towards one another are welded together with the high edges of the sheet metal parts running between the forward and return runs in one operation. The welding path is shorter. The flat radiator also offers a clean view in the area of the front sides of the flow and return.
  • the process for producing the flat radiator according to the invention is characterized as follows: the sheet for producing the flat radiator is beaded into sheet metal parts of mirror-symmetrical design, embossed and cut to length, and also perforated.
  • the sheet metal parts are folded one on top of the other to form the forward flow, the return flow and the channels with the beads and a web which limits the return flow to the front wall and the rear wall.
  • the back of the forward run is cut at its ends.
  • the neckline will usually be triangular; other shapes are possible.
  • the connections are pressure welded around the holes.
  • the forward and rewind will be closed at their ends by bending one sheet metal part in the direction of the other sheet metal part.
  • the edges of the bent sheet metal parts, the beads and the webs as well as the beads are welded.
  • the heating medium is guided, e.g. B. hot water, in vertical channels 1, all of which on the one hand merge into a flow 2, on the other hand into a return 3.
  • the individual channels 1 are separated from one another by beads 4.
  • Connections 5 for the supply and discharge of the heating medium are connected to flow 2 and return 3.
  • the channels 1 are formed by two profiled sheet metal parts 7, 8.
  • the two sheet metal parts 7, 8 are welded to one another on the beads 4, in a spot welding process, as is indicated for a bead in FIG. 1.
  • the shape of a symmetrical hexagon is thus created for each channel 1 in cross section.
  • the flow 2 and the return 3 are also formed by the sheet metal parts 7, 8, but in different ways.
  • the lead 2 is formed as follows:
  • the profiled sheet metal parts 7, 8 are components of a mirror-symmetrically constructed sheet. The axis of symmetry runs in the middle of the top of the flow 2. The sheet is folded to produce the flat radiator. After folding - and in a manner to be described later - welding - the profiled sheet metal parts 7, 8, the lead 2 is present.
  • the return 3 is formed as follows: In the extension of the beads 4, webs 9 are formed on the profiled sheet metal parts 7, 8 beyond the return 3. These webs 9 lie against each other. After the webs 9 have been welded together, the return 3 is formed.
  • connections 5 for the supply and discharge of the heating medium are welded in the area of flow 2 and return 3 on the side of the flat radiator facing the other row.
  • Each sheet metal part 7 or 8 is bent at the ends 21, 31 of the flow 2 and the return 3 in the direction of the other sheet metal part 8 or 7.
  • the bent sheet metal parts are welded by a circular seam 10.
  • the welding of the circular seam 10 takes place simultaneously with the welding of one Raised seam 11 between the circular seams 10 in the area of the flow 2 and the return 3 on the same end face of the flat radiator.
  • the circumferential weld seam 10 and the high 1 1 are in such a gas shielded welding process in the same operation as a case seam.
  • B welded with C0 2 as a protective gas.
  • the back 12 of the lead 2 is provided at the ends with a triangular recess shown in broken lines at the ends before bending and welding. This avoids the overlapping of the sheet metal parts in the area of the circular seam 10; rather guarantees the clean execution of the connection of the sheet metal parts 7, 8 also in the area of the front sides of the forward 2 and return 3.
  • a two-row flat radiator is selected as the exemplary embodiment.
  • the two rows of the flat radiator have the same structure.
  • a single-row or multi-row flat radiator can also be formed, the rows of which have the same structure.

Abstract

1. A method of production of a flat heater unit having a front wall and a rear wall between which are formed a flow (2) and a return (3) as well as channels (1) arranged in parallel with one another between the flow (2) and the return (3) and separated from one another by stiffening corrugations (4), and having connections (5) to the flow (2) and the return (3) in the front wall and/or the rear wall, the front wall and the rear wall being formed from the same metal sheet welded into two sheetmetal parts stamped with mirror symmetry and folded, characterized in that a metal sheet is corrugated, stamped and cut to length into the sheetmetal parts (7 ; 8) formed with mirror symmetry and furthermore holes are cut in it, that the sheetmetal parts (7 ; 8) are folded into the front wall and the rear wall to lie against one another and so form the flow (2), the return (3) and the channels (1) by the stiffening corrugations (4) and a flange (9) bounding the return (3) on the outside, that the connections (5) are welded round the holes, that the flow (2) and the return (3) are closed off at their ends by in each case bending the one sheetmetal part (7 ; 8) in the direction of the other sheetmetal part (8 ; 7) and that in the case of the flow (2) the sheetmetal parts (7 ; 8) bent together and in the case of the return (3) the flanges (9) and furthermore the stiffening corrugations (4) are all respectively welded.

Description

Die Erfindung bezieht sich auf einen Flachheizkörper, dessen Vorderwand und dessen Rückwand durch je ein profiliertes Blechteil gebildet sind, mit einem Vorlauf sowie einem Rücklauf, mit durch Sicken voneinander getrennten, parallel zueinander zwischen Vorlauf und Rücklauf angeordneten Kanälen und mit Anschlüssen an Vorlauf und Rücklauf in der Vorderwand und/oder der Rückwand, wobei die Blechteile spiegelsymmetrisch in dasselbe Blech geprägt, unter Bildung der Kanäle, des Vor- und Rücklaufs zu der Vorder-und der Rückwand gefaltet und miteinander verschweißt sind.The invention relates to a flat radiator, the front wall and the rear wall of which are each formed by a profiled sheet metal part, with a flow and a return, with channels separated by beads, arranged parallel to one another between flow and return, and with connections to flow and return in the front wall and / or the rear wall, the sheet metal parts being embossed mirror-symmetrically in the same sheet, folded to form the channels, the forward and return flow to the front and rear walls and welded to one another.

Flachheizkörper der vorgenannten Art sind bekannt. Sie weisen keine ausgeprägte Oberkante, vielmehr eine runde glatte Oberseite ohne Schweißnaht auf. Sie entsprechen den Sicherheitsvorschriften der Bundesarbeitsgemeinschaft der Versicherungsträger der öffentlichen Hand e.V. und sind für Schulen, Sportstätten, Kindergärten, Heime usw. besonders geeignet.Flat radiators of the aforementioned type are known. They do not have a pronounced top edge, but rather a round, smooth top without a weld. They comply with the safety regulations of the Federal Working Group of Public Insurance Institutions and are particularly suitable for schools, sports facilities, kindergartens, homes, etc.

Bei den bekannten Flachheizkörpern der vorgenannten Art sind die Stirnseiten mit je einer Blindkappe verschlossen, deren Umriß gleich dem - einander spiegelbildlich gleichen - Querschnitt von Vor- und Rücklauf ist. Das Einbringen und Einschweißen der Blindkappen ist problematisch. Ein Automat für diese Arbeit hatte eine zu hohe Fehlerquote; daher erfolgt das Einbringen und Einschweißen von Hand. Der damit verbundene Aufwand ist erheblich und die Qualität der Schweibung zufällig und unterschiedlich. Andererseits ist das Verschließen der Stirnseiten von Vor- und Rücklauf als letzter Arbeitsgang herstellungsbedingt: Für das Anbringen der Anschlüsse an die Vorderwand und/oder die Rückwand des Flachheizkörpers wird ein Kupferkern in den Vorlauf und den Rücklauf eingebracht, um die Anschlüsse im Preßschweiß-Verfahren anbringen zu können. Der Kupferkern muß wieder entfernt werden; das geht nur über die stirnseitige Öffnung. Die Verwendung einer Schweißhilfe in Form eines Einsatzes im Vorlauf und im Rücklauf führt zu einer Verminderung des Querschnitts im Vorlauf und im Rücklauf, damit zu Verstopfungen der Öffnungen, was zu Reklamationen Anlaß gibt.In the known flat radiators of the aforementioned type, the end faces are each closed with a blind cap, the outline of which is equal to the cross-section of the flow and return, which are mirror images of one another. The insertion and welding of the blind caps is problematic. A machine for this work had an error rate that was too high; therefore it is inserted and welded in by hand. The effort involved is considerable and the quality of the Welding randomly and differently. On the other hand, the closing of the end faces of the flow and return is the last step due to the manufacturing process: To attach the connections to the front wall and / or the rear wall of the flat radiator, a copper core is inserted in the flow and return to attach the connections using the pressure welding process to be able to. The copper core must be removed again; this is only possible through the front opening. The use of a welding aid in the form of an insert in the flow and in the return leads to a reduction in the cross-section in the flow and in the return, thus clogging the openings, which gives rise to complaints.

Hier will die Erfindung Abhilfe schaffen. Die Erfindung, wie sie in den Ansprüchen gekennzeichnet ist, löst die Aufgabe, einen Flachheizkörper zu schaffen, der unter Beibehaltung der Vorteile einer abgerundeten Oberseite, des Preßschweiß-Verfahrens ohne Schweißhilfe und des ungehinderten Durchflusses des Heizmediums auch im Bereich der Anschlüsse keiner Kappen mehr bedarf.The invention seeks to remedy this. The invention, as characterized in the claims, solves the problem of creating a flat radiator which, while retaining the advantages of a rounded top, the pressure welding process without welding aid and the unimpeded flow of the heating medium, no longer requires caps, even in the area of the connections .

Unter einer Rundnaht ist eine Schweißnaht zu verstehen, die im Bereich der - abgerundeten - Ecke des Heizkörpers von der Hoch- zur Oberkante verläuft. Zur Erleichterung des Biegens und Erzielung eines sauberen Aneinanderfügens ist es vorteilhaft, den Rücken des Vorlaufs an den Enden vor dem Biegen mit je einer Ausnehmung zu versehen.A round seam is to be understood as a weld seam that runs in the area of the rounded corner of the radiator from the top edge to the top edge. To facilitate bending and to achieve a clean joining, it is advantageous to provide the back of the lead with a recess at the ends before bending.

Der Flachheizkörper nach der Erfindung weist alle Vorteile des bekannten Flachheizkörpers der eingangs genannten Art auf. Er beseitigt dessen Nachteile, die durch das Einsetzen der Blindkappen entstehen. Vielmehr sind Blindkappen vollständig vermieden. An ihre Stelle tritt ein rundgebogener, parallel zusammengedrückter Kantenbereich, der als Fallnaht verschweißt ist, und zwar ohne Bildung einer scharfen Kante in Form einer Rundnaht. Im Vergleich zu dem bekannten Flachheizkörper ist der Aufwand wesentlich vermindert. Die Kanten der zueinander gebogenen Blechteile werden zusammen mit den zwischen Vorlauf und Rücklauf verlaufenden Hochkanten der Blechteile in einem Arbeitsgang verschweißt. Der Schweißweg ist kürzer. Der Flachheizkörper bietet auch im Bereich der Stirnseiten von Vorlauf und Rücklauf einen sauberen Anblick.The flat heater according to the invention has all the advantages of the known flat heater of the type mentioned. It eliminates its disadvantages caused by insertion the blind caps are created. Rather, blind caps are completely avoided. In its place, there is a rounded, parallel compressed edge area, which is welded as a vertical seam, without the formation of a sharp edge in the form of a circular seam. Compared to the known flat radiator, the effort is significantly reduced. The edges of the sheet metal parts bent towards one another are welded together with the high edges of the sheet metal parts running between the forward and return runs in one operation. The welding path is shorter. The flat radiator also offers a clean view in the area of the front sides of the flow and return.

Mehrere der vorgenannten Flachheizkörper können parallel zueinander angeordnet und zu Mehrreihen-Flachheizkörpern verbunden sein.Several of the aforementioned flat radiators can be arranged parallel to one another and connected to form multiple-row flat radiators.

Das Verfahren zur Herstellung des Flachheizkörpers nach der Erfindung ist wie folgt gekennzeichnet: Das Blech für die Herstellung des Flachheizkörpers wird zu spiegelsymmetrisch ausgebildeten Blechteilen gesickt, geprägt und auf Länge geschnitten, außerdem gelocht. Die Blechteile werden unter Bildung des Vorlaufs, des Rücklaufs und der Kanäle mit den Sicken und einem den Rücklauf außen begrenzenden Steg aufeinanderliegend zu der Vorderwand und der Rückwand gefaltet. Der Rücken des Vorlaufs wird an seinen Enden mit einem Ausschnitt versehen. Der Ausschnitt wird in der Regel dreieckig sein; andere Formen sind möglich. Um die Löcher werden die Anschlüsse im Preßschweiß-verfahren geschweißt. Der Vorlauf und der Rücklauf werden an ihren Enden durch Biegen jeweils des einen Blechteils in Richtung des anderen Blechteils verschlossen. Die Kanten der zueinandergebogenen Blechteile, der Sicken und der Stege sowie die Sicken werden verschweißt.The process for producing the flat radiator according to the invention is characterized as follows: the sheet for producing the flat radiator is beaded into sheet metal parts of mirror-symmetrical design, embossed and cut to length, and also perforated. The sheet metal parts are folded one on top of the other to form the forward flow, the return flow and the channels with the beads and a web which limits the return flow to the front wall and the rear wall. The back of the forward run is cut at its ends. The neckline will usually be triangular; other shapes are possible. The connections are pressure welded around the holes. The forward and rewind will be closed at their ends by bending one sheet metal part in the direction of the other sheet metal part. The edges of the bent sheet metal parts, the beads and the webs as well as the beads are welded.

Im folgenden wird die Erfindung anhand von lediglich einen Ausführungsweg darstellenden Zeichnungen erläutert. Es zeigen:

  • Fig. 1 in verkleinertem Maßstab die Ansicht eines zweireihigen Flachheizkörpers mit teilweise weggebrochener vorderer Reihe;
  • Fig. 2 den Flachheizkörper teilweise in Stirnansicht, teilweise im Längsschnitt entlang der Schnittlinie II-II in Fig. 1;
  • Fig. 3 den Flachheizkörper teilweise in Draufsicht, teilweise im Horizontalschnitt entlang der Schnittlinie III-III in Fig. 1;
  • Fig. 4 als Einzelheit den Bereich einer Stirnseite des Vorlaufs des Flachheizkörpers
    • a) in der Ansicht;
    • b) in der Stirnansicht und
    • c) im Horizontalschnitt.
In the following, the invention will be explained with reference to drawings showing only one embodiment. Show it:
  • Figure 1 on a smaller scale the view of a two-row flat radiator with the front row partially broken away.
  • Figure 2 shows the flat radiator partly in front view, partly in longitudinal section along the section line II-II in Fig. 1.
  • Figure 3 shows the flat radiator partly in plan view, partly in horizontal section along the section line III-III in Fig. 1.
  • Fig. 4 as a detail the area of an end face of the flow of the flat radiator
    • a) in the view;
    • b) in the front view and
    • c) in horizontal section.

Bei einem Flachheizkörper erfolgt die Führung des Heizmediums, z. B. Warmwasser, in vertikal verlaufenden Kanälen 1, die alle einerseits in einen Vorlauf 2, andererseits in einen Rücklauf 3 übergehen. Die einzelnen Kanäle 1 sind durch Sicken 4 voneinander getrennt. Mit Vorlauf 2 und Rücklauf 3 sind Anschlüsse 5 für die Zuund Abfuhr des Heizmediums verbunden.In the case of a flat radiator, the heating medium is guided, e.g. B. hot water, in vertical channels 1, all of which on the one hand merge into a flow 2, on the other hand into a return 3. The individual channels 1 are separated from one another by beads 4. Connections 5 for the supply and discharge of the heating medium are connected to flow 2 and return 3.

Die Kanäle 1 sind von zwei profilierten Blechteilen 7, 8 gebildet. An den Sicken 4 sind die beiden Blechteile 7, 8 miteinander verschweißt, und zwar in einem Punkt-Schweißverfahren, wie es für eine Sicke in Fig. 1 angedeutet ist. Für jeden Kanal 1 entsteht so im Querschnitt die Form eines symmetrischen Sechsecks.The channels 1 are formed by two profiled sheet metal parts 7, 8. The two sheet metal parts 7, 8 are welded to one another on the beads 4, in a spot welding process, as is indicated for a bead in FIG. 1. The shape of a symmetrical hexagon is thus created for each channel 1 in cross section.

Auch der Vorlauf 2 und der Rücklauf 3 sind von den Blechteilen 7, 8 gebildet, jedoch auf unterschiedliche Weise. Der Vorlauf 2 ist wie folgt gebildet: Die profilierten Blechteile 7, 8 sind Bestandteile eines spiegelsymmetrisch aufgebauten Blechs. Die Symmetrieachse verläuft in der Mitte der Oberseite des Vorlaufs 2. Für die Herstellung des Flachheizkörpers wird das Blech gefaltet. Nach dem Falten - und in noch zu beschreibender Weise dem Verschweißen - der profilierten Blechteile 7, 8 ist der Vorlauf 2 vorhanden. Der Rücklauf 3 ist wie folgt gebildet: In der Verlängerung der Sicken 4 sind über den Rücklauf 3 hinaus Stege 9 an die profilierten Blechteile 7, 8 angeformt. Diese Stege 9 liegen aneinander. Nach dem Verschweißen der Stege 9 ist der Rücklauf 3 gebildet.The flow 2 and the return 3 are also formed by the sheet metal parts 7, 8, but in different ways. The lead 2 is formed as follows: The profiled sheet metal parts 7, 8 are components of a mirror-symmetrically constructed sheet. The axis of symmetry runs in the middle of the top of the flow 2. The sheet is folded to produce the flat radiator. After folding - and in a manner to be described later - welding - the profiled sheet metal parts 7, 8, the lead 2 is present. The return 3 is formed as follows: In the extension of the beads 4, webs 9 are formed on the profiled sheet metal parts 7, 8 beyond the return 3. These webs 9 lie against each other. After the webs 9 have been welded together, the return 3 is formed.

Die Anschlüsse 5 für die Zu- und Abfuhr des Heizmediums sind im Bereich von Vorlauf 2 und Rücklauf 3 jeweils auf der der anderen Reihe zugewandten Seite des Flachheizkörpers angeschweißt.The connections 5 for the supply and discharge of the heating medium are welded in the area of flow 2 and return 3 on the side of the flat radiator facing the other row.

Jedes Blechteil 7 oder 8 ist an den Enden 21, 31 des Vorlaufs 2 und des Rücklaufs 3 in Richtung des anderen Blechteils 8 oder 7 gebogen. Die gebogenen Blechteile sind durch eine Rundnaht 10 verschweißt. Das Schweißen der Rundnaht 10 erfolgt gleichzeitig mit dem Schweißen einer Hochnaht 11 zwischen den Rundnähten 10 im Bereich des Vorlaufs 2 und des Rücklaufs 3 an derselben Stirnseite des Flachheizkörpers. Die Rundnaht 10 und die Hochnaht 11 werden in demselben Arbeitsgang als Fallnaht in einem Schutzgas-Schweißverfahren z. B. mit C02 als Schutzgas verschweißt. Der Rücken 12 des Vorlaufs 2 ist an den Enden vor dem Biegen und Verschweißen mit je einer gestrichelt dargestellten dreieckigen Ausnehmung versehen. Dies vermeidet das Überlappen der Blechteile im Bereich der Rundnaht 10; garantiert vielmehr die saubere Ausführung des Verbindens der Blechteile 7, 8 auch im Bereich der Stirnseiten von Vorlauf 2 und Rücklauf 3.Each sheet metal part 7 or 8 is bent at the ends 21, 31 of the flow 2 and the return 3 in the direction of the other sheet metal part 8 or 7. The bent sheet metal parts are welded by a circular seam 10. The welding of the circular seam 10 takes place simultaneously with the welding of one Raised seam 11 between the circular seams 10 in the area of the flow 2 and the return 3 on the same end face of the flat radiator. The circumferential weld seam 10 and the high 1 1 are in such a gas shielded welding process in the same operation as a case seam. B. welded with C0 2 as a protective gas. The back 12 of the lead 2 is provided at the ends with a triangular recess shown in broken lines at the ends before bending and welding. This avoids the overlapping of the sheet metal parts in the area of the circular seam 10; rather guarantees the clean execution of the connection of the sheet metal parts 7, 8 also in the area of the front sides of the forward 2 and return 3.

Als Ausführungsbeispiel ist ein zweireihiger Flachheizkörper gewählt. Die beiden Reihen des Flachheizkörpers sind gleich aufgebaut. Es kann auch ein einreihiger oder mehrreihiger Flachheizkörper gebildet sein, dessen Reihen gleich aufgebaut sind.A two-row flat radiator is selected as the exemplary embodiment. The two rows of the flat radiator have the same structure. A single-row or multi-row flat radiator can also be formed, the rows of which have the same structure.

Die Herstellung des Flachheizkörpers geschieht wie folgt:

  • Aus einem Blech werden spiegelsymmetrisch die profilierten Blechteile 7, 8 gebildet: Es werden die Sicken 4 sowie die Hälften von Vorlauf 2 und Rücklauf 3 eingeprägt. Das Blech wird mit Löchern für die Anschlüsse 5 versehen und auf Länge geschnitten. Der später den Rücken 12 des Vorlaufs 2 bildende Teil des Blechs wird an seinen Enden mit einem dreieckigen Ausschnitt versehen. Die Blechteile 7, 8 werden unter Bildung des Vorlaufs 2, des Rücklaufs 3 und der Kanäle 1 mit den Sicken 4 und dem den Rücklauf 3 an der Unterkante begrenzende Steg 9 aufeinanderliegend zu einer Vorderwand und einer Rückwand gefaltet. Die Sicken 4 werden in einem Punkt-Schweißverfahren miteinander verschweißt. Entlang den Stegen 9 wird eine Längsnaht geschweißt. In einem Preßschweiß-Verfahren werden im Bereich der Löcher die Anschlüsse 5 angeschweißt. Der Vorlauf 2 und der Rücklauf 3 werden an ihren Enden durch Biegen jeweils des einen Blechteils 7 oder 8 in Richtung des anderen Blechteils 8 oder 7 verschlossen. Entlang denken Flachheizkörper an den Stirnseiten begrenzenden halben Sicken wird die Hochnaht 11 geschweißt; gleichzeitig die Rundnähte 10 im Bereich der aufeinanderzugebogenen, halbrunden und hohlen Stirnseiten von Vorlauf 2 und Rücklauf 3. Das Schweißen der Nähte erfolgt in einem Arbeitsgang als Fallnaht in dem Schutzgas-Schweißverfahren z. B. mit CO2 als Schutzgas. Es entstehen abgerundete Schweißnähte in den genannten Bereichen.
The flat radiator is manufactured as follows:
  • The profiled sheet metal parts 7, 8 are formed mirror-symmetrically from a sheet metal: the beads 4 and the halves of the forward 2 and return 3 are embossed. The plate is provided with holes for the connections 5 and cut to length. The part of the sheet which later forms the back 12 of the lead 2 is provided with a triangular cutout at its ends. The sheet metal parts 7, 8 are folded one above the other to form a front wall and a rear wall to form the flow 2, the return 3 and the channels 1 with the beads 4 and the web 9 delimiting the return 3 at the lower edge. The beads 4 are welded together in a spot welding process. A longitudinal seam is welded along the webs 9. In a pressure welding process, the connections 5 are welded in the area of the holes. The flow 2 and the return 3 are closed at their ends by bending one sheet metal part 7 or 8 in the direction of the other sheet metal part 8 or 7. The flat seam 11 is welded along the flat radiators on the half beads delimiting the end faces; at the same time, the circular seams 10 in the area of the semi-circular and hollow end faces of feed 2 and return 3, which are bent towards one another. B. with CO 2 as a protective gas. Rounded weld seams are created in the areas mentioned.

Claims (5)

1. Flachheizkörper, dessen Vorderwand und dessen Rückwand durch je ein profiliertes Blechteil (7; 8) gebildet sind, mit einem Vorlauf (2) sowie einem Rücklauf (3), mit durch Sicken (4) voneinander getrennten, parallel zueinander zwischen Vorlauf (2) und Rücklauf (3) angeordneten Kanälen (1), und mit Anschlüssen (5) an Vorlauf (2) und Rücklauf (3) in der Vorderwand und/oder der Rückwand, wobei die Blechteile (7; 8) spiegelsymmetrisch in dasselbe Blech geprägt, unter Bildung der Kanäle (1), des Vor- und Rücklaufs zu der Vorder-und der Rückwand gefaltet und miteinander verschweißt sind, dadurch gekennzeichnet, daß jedes Blechteil (7; 8) an den Enden des Vorlaufs (2) und des Rücklaufs (3) in Richtung des anderen Blechteils (8; 7) gebogen und mit ihm durch eine Rundnaht (10) verschweißt ist.1. Flat radiator, the front wall and the rear wall of which are each formed by a profiled sheet metal part (7; 8), with a flow (2) and a return (3), with beads (4) separated from each other, parallel to each other between flow (2 ) and return (3) arranged channels (1), and with connections (5) to flow (2) and return (3) in the front wall and / or the rear wall, the sheet metal parts (7; 8) being embossed mirror-symmetrically in the same sheet , folded to form the channels (1), the forward and return to the front and the rear wall and welded together, characterized in that each sheet metal part (7; 8) at the ends of the forward (2) and the return ( 3) is bent in the direction of the other sheet metal part (8; 7) and is welded to it by a circular seam (10). 2. Flachheizkörper nach Anspruch 1, dadurch gekennzeichnet, daß der Rücken (12) des Vorlaufs (2) an den Enden vor dem Biegen mit je einer Ausnehmung versehen ist.2. Flat radiator according to claim 1, characterized in that the back (12) of the flow (2) is provided with a recess at the ends before bending. 3. Flachheizkörper nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß jede Rundnaht (10) als Fallschweißnaht in der Verlängerung der den Flachheizkörper am zugehörigen Ende begrenzenden Sicken (4) vorgesehen ist.3. Flat radiator according to claim 1 or 2, characterized in that each circular seam (10) is provided as a drop weld in the extension of the flat heater at the associated end beads (4). 4. Verfahren zur Herstellung des Flachheizkörpers nach den Ansprüchen 1 bis 3, dadurch gekennzeichnet, daß das Blech zu den spiegelsymmetrisch ausgebildeten Blechteilen (7; 8) gesickt, geprägt und auf Länge geschnitten, außerdem gelocht wird, daß die Blechteile (7; 8) unter Bildung des Vorlaufs (2), des Rücklaufs (3) und der Kanäle (1) mit den Sicken (4) und einem den Rücklauf (3) außen begrenzenden Steg (9) aufeinanderliegend zu der Vorderwand und der Rückwand gefaltet werden, daß der Rücken (12) des Vorlaufs (2) an seinen Enden mit einem Ausschnitt versehen wird, daß um die Löcher die Anschlüsse (5) geschweißt werden, daß der Vorlauf (2) und der Rücklauf (3) an ihren Enden durch Biegen jeweils des einen Blechteils (7; 8) in Richtung des anderen Blechteils (8; 7) verschlossen werden und daß die Kanten der zueinandergebogenen Blechteile (7; 8), der Sicken (4) und der Stege (9) sowie die Sicken (4) verschweißt werden.4. A process for the production of the flat radiator according to claims 1 to 3, characterized in that the sheet is corrugated to the mirror-symmetrical sheet metal parts (7; 8), embossed and cut to length, and is also punched that the sheet metal parts (7; 8) to form the flow (2), the return (3) and the channels (1) with the beads (4) and a web (9) which delimits the return (3) on the outside to the front wall and the rear wall so that the Back (12) of the flow (2) is provided at its ends with a cutout that the connections (5) are welded around the holes, that the flow (2) and the return (3) at their ends by bending the one Sheet metal part (7; 8) in the direction of the other sheet metal part (8; 7) are closed and that the edges of the bent sheet metal parts (7; 8), the beads (4) and the webs (9) and the beads (4) are welded . 5. Verfahren nach Anspruch 4, dadurch gekennzeichnet, daß die Enden der zueinandergebogenen Blechteile (7; 8) im Bereich des Vorlaufs (2) und des Rücklaufs (3) und die zwischen den Enden verlaufenden Hochkanten der Blechteile (7; 8) in einem Arbeitsgang als Fallnaht in einem Schutzgas-Schweißverfahren verschweißt werden.5. The method according to claim 4, characterized in that the ends of the bent sheet metal parts (7; 8) in the region of the forward (2) and the return (3) and the high edges of the sheet metal parts (7; 8) extending between the ends in one Operation as vertical down weld in a protective gas welding process.
EP85104469A 1984-05-17 1985-04-12 Method for the manufacture of a flat radiator Expired EP0162271B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85104469T ATE35736T1 (en) 1984-05-17 1985-04-12 METHOD OF MANUFACTURE OF A PANEL RADIATOR.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3418316 1984-05-17
DE19843418316 DE3418316A1 (en) 1984-05-17 1984-05-17 FLAT RADIATOR AND METHOD FOR THE PRODUCTION THEREOF

Publications (3)

Publication Number Publication Date
EP0162271A2 true EP0162271A2 (en) 1985-11-27
EP0162271A3 EP0162271A3 (en) 1986-08-27
EP0162271B1 EP0162271B1 (en) 1988-07-13

Family

ID=6236105

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85104469A Expired EP0162271B1 (en) 1984-05-17 1985-04-12 Method for the manufacture of a flat radiator

Country Status (3)

Country Link
EP (1) EP0162271B1 (en)
AT (1) ATE35736T1 (en)
DE (2) DE3418316A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5837096A (en) * 1994-02-25 1998-11-17 Ahlstrom Machinery Oy Falling film evaporator
ES2144919A1 (en) * 1996-04-12 2000-06-16 Commital Sami Spa Distribution group for radiant plate radiators.
WO2015092517A1 (en) * 2013-12-18 2015-06-25 Antonio Petracca Radiator for hot-water heating, in particular for heating systems for civil use

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR503795A (en) * 1917-09-24 1920-06-17 Olof Valfrid Cardell Improvements to sheet metal heating radiators
US1897113A (en) * 1929-06-06 1933-02-14 Doucet Edmond Gabriel Radiator
GB499696A (en) * 1937-04-08 1939-01-27 Vries Robbe & Co N V De A method of manufacturing sheet metal radiator elements and the product manufacturedthereby
DE709736C (en) * 1937-08-29 1941-08-25 Paul Gaetje Plate radiator
DE750458C (en) * 1934-07-12 1945-01-13 Process for welding the edges of thin sheets
CH318147A (en) * 1954-03-12 1956-12-31 Sulzer Ag Central heating radiators
GB845178A (en) * 1958-11-13 1960-08-17 Washington Engineering Ltd Improvements in or relating to the manufacture of heat exchanger panels
FR1362000A (en) * 1963-04-13 1964-05-29 Finissage De Produits Metallur Heat exchange panel
DE2510303A1 (en) * 1975-03-10 1976-09-23 Bayerisches Radiatorenwerk Geb Deep drawn welded radiator element - has deep drawn half shells with more than four columns
DE2510875A1 (en) * 1975-03-13 1976-09-30 Cloos Fa Carl Thin sheet welding process - with negative polarity welding wire
DE3308945A1 (en) * 1983-03-12 1984-09-13 Baufa-Werke Richard Rinker GmbH, 5750 Menden Flat heater

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR503795A (en) * 1917-09-24 1920-06-17 Olof Valfrid Cardell Improvements to sheet metal heating radiators
US1897113A (en) * 1929-06-06 1933-02-14 Doucet Edmond Gabriel Radiator
DE750458C (en) * 1934-07-12 1945-01-13 Process for welding the edges of thin sheets
GB499696A (en) * 1937-04-08 1939-01-27 Vries Robbe & Co N V De A method of manufacturing sheet metal radiator elements and the product manufacturedthereby
DE709736C (en) * 1937-08-29 1941-08-25 Paul Gaetje Plate radiator
CH318147A (en) * 1954-03-12 1956-12-31 Sulzer Ag Central heating radiators
GB845178A (en) * 1958-11-13 1960-08-17 Washington Engineering Ltd Improvements in or relating to the manufacture of heat exchanger panels
FR1362000A (en) * 1963-04-13 1964-05-29 Finissage De Produits Metallur Heat exchange panel
DE2510303A1 (en) * 1975-03-10 1976-09-23 Bayerisches Radiatorenwerk Geb Deep drawn welded radiator element - has deep drawn half shells with more than four columns
DE2510875A1 (en) * 1975-03-13 1976-09-30 Cloos Fa Carl Thin sheet welding process - with negative polarity welding wire
DE3308945A1 (en) * 1983-03-12 1984-09-13 Baufa-Werke Richard Rinker GmbH, 5750 Menden Flat heater

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5837096A (en) * 1994-02-25 1998-11-17 Ahlstrom Machinery Oy Falling film evaporator
ES2144919A1 (en) * 1996-04-12 2000-06-16 Commital Sami Spa Distribution group for radiant plate radiators.
WO2015092517A1 (en) * 2013-12-18 2015-06-25 Antonio Petracca Radiator for hot-water heating, in particular for heating systems for civil use
CN105874277A (en) * 2013-12-18 2016-08-17 安东尼奥·佩特拉卡 Radiator for hot-water heating, in particular for heating systems for civil use

Also Published As

Publication number Publication date
EP0162271A3 (en) 1986-08-27
EP0162271B1 (en) 1988-07-13
ATE35736T1 (en) 1988-07-15
DE3418316A1 (en) 1985-11-21
DE3563794D1 (en) 1988-08-18

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