EP2742304A1 - Plate heat exchanger - Google Patents

Plate heat exchanger

Info

Publication number
EP2742304A1
EP2742304A1 EP12740960.5A EP12740960A EP2742304A1 EP 2742304 A1 EP2742304 A1 EP 2742304A1 EP 12740960 A EP12740960 A EP 12740960A EP 2742304 A1 EP2742304 A1 EP 2742304A1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
base plate
plate
edge
central region
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
EP12740960.5A
Other languages
German (de)
French (fr)
Other versions
EP2742304B1 (en
Inventor
Andreas GRÜNER
Clemens Schupp
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.)
Mahle International GmbH
Original Assignee
Mahle International GmbH
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 Mahle International GmbH filed Critical Mahle International GmbH
Publication of EP2742304A1 publication Critical patent/EP2742304A1/en
Application granted granted Critical
Publication of EP2742304B1 publication Critical patent/EP2742304B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/0062—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by spaced plates with inserted elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/0031—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other
    • F28D9/0043—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another
    • F28D9/005—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another the plates having openings therein for both heat-exchange media
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/08—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2280/00—Mounting arrangements; Arrangements for facilitating assembling or disassembling of heat exchanger parts
    • F28F2280/04—Means for preventing wrong assembling of parts

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

The invention relates to a plate heat exchanger (1) comprising a cover plate (2), a base plate (3), and heat exchanger plates (4) arranged in the form of a stack between the cover plate and the base plate. The base plate (3) overlaps the edge of the adjacent heat exchanger plate (4) and has an edge (9) which is arranged in the direction of the heat exchanger plate stack and which follows a contour of the heat exchanger plate stack at least along some sections. It is essential to the invention that the edge (9) is formed by a projection (7) at least in some regions, said projection being integrally formed with the base plate (3) and being bent along folding lines (6a, 6b, 6c, 6d). In this manner, the base plate (3) can be produced in an inexpensive and weight- and material-optimized manner with a high rigidity.

Description

Plattenwärmetauscher  Plate heat exchanger
Die vorliegende Erfindung betrifft einen Plattenwärmetauscher mit einer Deckplatte, einer Grundplatte und dazwischen stapelartig angeordneten Wärmetauscherplatten gemäß dem Oberbegriff des Anspruchs 1 . Die Erfindung betrifft außerdem eine Grundplatte für einen derartigen Plattenwärmetauscher. The present invention relates to a plate heat exchanger having a cover plate, a base plate and interposed stacked heat exchanger plates according to the preamble of claim 1. The invention also relates to a base plate for such a plate heat exchanger.
Aus der EP 1 562 014 A1 ist ein gattungsgemäßer Plattenwärmetauscher bekannt, mit einer Vielzahl von stapelartig aufeinander angeordneten Wärmetauscherplatten. From EP 1 562 014 A1, a generic plate heat exchanger is known, with a multiplicity of stacked heat exchanger plates.
Aus der DE 10 2009 030 095 A1 ist ein weiterer gattungsgemäßer Plattenwärmetauscher bekannt, mit ebenfalls einer Vielzahl von stapelartig aufeinander gestapelten Wärmetauscherplatten und eine an einem Ende dieses Stapels angeordneten Grundplatte. Die Grundplatte besitzt dabei einen in Richtung des Wärmetauscherstapels aufgestellten Rand, der zumindest abschnittsweise einem Um- riss des Stapels folgt und dadurch eine Lagefixierung für den Wärmetauscherplattenstapel darstellt. Durch den aufgestellten Rand soll der Stapel fixiert und die Grundplatte, über welche der Plattenwärmetauscher bspw. an einem Verbrennungsmotor angeordnet ist, formsteif ausgebildet sein. From DE 10 2009 030 095 A1 another generic plate heat exchanger is known, also with a plurality of stacked stacked heat exchanger plates and arranged at one end of this stack base plate. In this case, the base plate has an edge set up in the direction of the heat exchanger stack, which at least in sections follows an outline of the stack and thereby represents a positional fixation for the heat exchanger plate stack. By the established edge of the stack is to be fixed and the base plate, via which the plate heat exchanger, for example, is arranged on an internal combustion engine, be formed dimensionally stable.
Weitere Plattenwärmetauscher sind bspw. aus der EP 0 623 7987 A2 sowie aus der DE 10 2006 005 106 A1 bekannt. Further plate heat exchangers are known, for example, from EP 0 623 7987 A2 and from DE 10 2006 005 106 A1.
Die vorliegende Erfindung beschäftigt sich mit dem Problem, für einen gattungsgemäßen Plattenwärmetauscher eine verbesserte oder zumindest eine alternative Ausführungsform anzugeben, die sich insbesondere durch hohe Qualität und eine vereinfachte und damit kostengünstige Herstellbarkeit auszeichnet. Dieses Problem wird erfindungsgemäß durch die Gegenstände der unabhängigen Ansprüche gelöst. Vorteilhafte Ausführungsformen sind Gegenstand der abhängigen Ansprüche. The present invention is concerned with the problem of providing for a generic plate heat exchanger, an improved or at least one alternative embodiment, which is characterized in particular by high quality and a simplified and thus cost manufacturability. This problem is solved according to the invention by the subject matters of the independent claims. Advantageous embodiments are the subject of the dependent claims.
Die vorliegende Erfindung beruht auf dem allgemeinen Gedanken, bei einem an sich aus dem Stand der Technik bekannten Plattenwärmetauscher mit einer Deckplatte, einer Grundplatte und dazwischen stapelartig angeordneten Wärmetauscherplatten, die Grundplatte aus einem kostengünstigen Blechformteil auszubilden und nicht wie bisher aus dem Stand der Technik bekannt, aus einer bis zu 5 mm dicken Metallplatte. Die erfindungsgemäße Grundplatte überragt dabei die darauf angeordneten, benachbarten Wärmetauscherplatten randseitig und weist zudem einen in Richtung des Wärmetauscherplattenstapels aufgestellten Rand auf, der zumindest abschnittsweise einem Umriss des Wärmetauscherplattenstapels folgt und dadurch diesen hinsichtlich seiner Lage auf der Grundplatte fixiert. Erfindungsgemäß ist nun dieser Rand zumindest teilweise durch einen einstückig mit der Grundplatte ausgebildeten und entlang von Falzlinien umgebogenen Abschnitt gebildet. Im Klartext heißt dies, dass die Grundplatte zunächst als ebenes Blechteil ausgestanzt wird, wobei dann in darauf folgenden Biegeschritten entsprechende (Blech-)Fortsätze entlang von vordefinierten Falzlinien umgebogen und dadurch der aufgestellte Rand gebildet wird. Durch die umgebogenen Fortsätze entstehen insbesondere in den jeweiligen Randbereichen Doppellagen, wodurch die Steifigkeit der Grundplatte an sich erhöht wird. Da diese Doppellagen jedoch nur partiell vorgesehen sind, weist die erfindungsgemäß hergestellte Grundplatte insgesamt ein deutlich geringeres Gewicht auf als bisher aus dem Stand der Technik bekannte und aus einer Metallplatte hergestellte Grundplatten. Das Herstellen der erfindungsgemäßen Grundplatte ist aufgrund ihrer konstruktiven Besonderheit besonders einfach und zugleich kostengünstig. Selbstverständlich können darüber hinaus zusätzlich benötigte Durchgangsöff- nungen der Grundplatte gleichzeitig mit dem Ausstanzen derselben aus bspw. einem Blechbogen mit ausgestanzt werden. The present invention is based on the general idea, in a known from the prior art plate heat exchanger with a cover plate, a base plate and interposed stacked heat exchanger plates to form the base plate from a cost sheet metal part and not known from the prior art, as is known from a metal plate up to 5 mm thick. The base plate according to the invention projects beyond the adjacent heat exchanger plates arranged on the edge and also has an erected in the direction of the heat exchanger plate stack edge, which at least partially follows an outline of the heat exchanger plate stack and thereby fixes this with respect to its position on the base plate. According to the invention, this edge is now at least partially formed by an integrally formed with the base plate and bent along fold lines section. In plain language, this means that the base plate is first punched out as a flat sheet metal part, which then in subsequent bending advances corresponding (sheet) extensions along bent predefined fold lines and thereby the erected edge is formed. The bent projections create double layers, in particular in the respective edge regions, as a result of which the rigidity of the base plate is increased. However, since these double layers are provided only partially, the base plate according to the invention has a significantly lower overall weight than previously known from the prior art and made of a metal plate base plates. The manufacture of the base plate according to the invention is particularly simple and at the same time inexpensive due to their structural feature. Of course, additionally required passage openings ments of the base plate at the same time as punching out the same from, for example, a metal sheet.
Bei einer vorteilhaften Weiterbildung der erfindungsgemäßen Lösung ist die Grundplatte aus Blech oder aus Leichtmetall, insbesondere aus Aluminium, ausgebildet. Durch die Ausbildung aus Leichtmetall, insbesondere aus Aluminium, lässt sich ein weiterer Gewichtsvorteil erreichen, wobei bereits die aus normalen Blech erfindungsgemäß hergestellte Grundplatte im Vergleich zu aus dem Stand der Technik bekannten und aus einer dicken Metallplatte geformten Grundplatte deutlich weniger Material und damit auch deutlich weniger Gewicht aufweist. Neben der Gewichtsoptimierung bietet auch die Materialeinsparung im Hinblick auf die sich stetig verteuernden Rohstoffe einen nicht zu unterschätzenden Vorteil. Generell kann die erfindungsgemäße Grundplatte mittels herkömmlich bekannter Stanz- und Umformmaschinen schnell, qualitativ hochwertig und zugleich kostengünstig hergestellt werden. Die umgebogenen Randbereiche, d. h. die umgebogenen Blechfortsätze, fixieren dabei nicht nur den Wärmetauscherplattenstapel hinsichtlich seiner Lage in Bezug auf die Grundplatte, sondern versteifen die Grundplatte zusätzlich, da insbesondere die Falzlinien und die in diesem Bereich gedoppelten Blechabschnitte hohe Steifigkeiten ermöglichen. In an advantageous development of the solution according to the invention, the base plate made of sheet metal or light metal, in particular aluminum, formed. The design of light metal, especially aluminum, another weight advantage can be achieved, which already made of normal sheet metal according to the invention base plate compared to known from the prior art and formed from a thick metal plate base plate significantly less material and thus significantly less Has weight. In addition to weight optimization, the material savings with regard to the constantly increasing raw materials also offers an advantage that should not be underestimated. In general, the base plate according to the invention can be produced by means of conventionally known punching and forming machines quickly, with high quality and at the same time inexpensively. The bent edge areas, d. H. The bent sheet metal extensions, not only fix the heat exchanger plate stack in terms of its position with respect to the base plate, but also stiffen the base plate, in particular because the fold lines and doubled in this area sheet metal sections allow high stiffness.
Bei einer weiteren vorteilhaften Ausführungsform der erfindungsgemäßen Lösung fasst der aufgestellte und aus den umgebogenen Blechfortsätzen hergestellte Rand Eckbereiche der Wärmetauscherplatten nicht ein. Der derart hergestellte Rand liegt somit nur an Längs- bzw. Querrändern des Wärmetauscherplattenstapels an, wogegen jedoch die Eckbereiche frei bleiben. Selbstverständlich können dabei die Ränder an der Längs- bzw. Querseite des Wärmetauscherplattenstapels eine zur Länge bzw. Breite der jeweiligen Wärmetauscherplatte nahezu identische Länge aufweisen, sodass der tatsächlich nicht eingefasste Eckbereich vergleichsweise gering ausfällt. Weitere wichtige Merkmale und Vorteile der Erfindung ergeben sich aus den Unteransprüchen, aus den Zeichnungen und aus der zugehörigen Figurenbeschreibung anhand der Zeichnungen. In a further advantageous embodiment of the solution according to the invention, the erected edge produced from the bent sheet-metal projections does not encompass corner regions of the heat exchanger plates. The edge thus produced is thus only on longitudinal or transverse edges of the heat exchanger plate stack, whereas, however, the corner areas remain free. Of course, the edges on the longitudinal or transverse side of the heat exchanger plate stack can have an almost identical length to the length or width of the respective heat exchanger plate, so that the actually not enclosed corner region is comparatively small. Other important features and advantages of the invention will become apparent from the dependent claims, from the drawings and from the associated figure description with reference to the drawings.
Es versteht sich, dass die vorstehend genannten und die nachstehend noch zu erläuternden Merkmale nicht nur in der jeweils angegebenen Kombination, sondern auch in anderen Kombinationen oder in Alleinstellung verwendbar sind, ohne den Rahmen der vorliegenden Erfindung zu verlassen. It is understood that the features mentioned above and those yet to be explained below can be used not only in the particular combination given, but also in other combinations or in isolation, without departing from the scope of the present invention.
Bevorzugte Ausführungsbeispiele der Erfindung sind in den Zeichnungen dargestellt und werden in der nachfolgenden Beschreibung näher erläutert, wobei sich gleiche Bezugszeichen auf gleiche oder ähnliche oder funktional gleiche Bauteile beziehen. Preferred embodiments of the invention are illustrated in the drawings and will be described in more detail in the following description, wherein like reference numerals refer to the same or similar or functionally identical components.
Dabei zeigen, jeweils schematisch, Show, in each case schematically,
Fig. 1 eine Darstellung eines Plattenwärmetauscher nach dem Stand der 1 is a representation of a plate heat exchanger according to the prior
Technik,  Technology,
Fig. 2-5 unterschiedliche Ausführungsformen der erfindungsgemäßen Grundplatte, 2-5 different embodiments of the base plate according to the invention,
Fig. 6 eine nach dem Druckgussverfahren hergestellte Grundplatte. Fig. 6 is a base plate produced by die casting.
Entsprechend der Fig. 1 , weist ein Plattenwärmetauscher 1 eine Deckplatte 2, eine Grundplatte 3 sowie dazwischen stapelartig angeordnete Wärmetauscherplatten 4 auf. Die Grundplatte 3 überragt dabei die benachbarte Wärmetauscherplatte 4 randseitig und weist zudem einen in Richtung des Wärmetauscherplattenstapels aufgestellten Rand 5 auf, der zumindest die nächstliegende Wärme- tauscherplatte 4 zumindest teilweise, hier vollständig, randseitig einfasst und dadurch in Bezug auf die Grundplatte 3 lagefixiert. Über die Grundplatte 3 wird der Plattenwärmetauscher 1 bspw. an einem Verbrennungsmotor befestigt. Um nun die Grundplatte 3 einerseits kostengünstig und andererseits konstruktiv einfach und zudem gewichtsoptimiert ausbilden zu können, ist bei der erfindungsgemäßen Grundplatte 3 gemäß den Fig. 2 bis 6 der Rand 5 zumindest bereichsweise durch einen einstückig mit der Grundplatte 3 ausgebildeten und durch entlang von Falzlinien 6a bis 6d umgebogenen Fortsatz 7, insbesondere einen Blechfortsatz 7, gebildet. Die Grundplatte 3 kann bspw. aus Blech oder aus Leichtmetall, insbesondere aus Aluminium, ausgebildet sein. According to FIG. 1, a plate heat exchanger 1 has a cover plate 2, a base plate 3 and heat exchanger plates 4 stacked therebetween. The base plate 3 projects beyond the adjacent heat exchanger plate 4 at the edge and also has an erected in the direction of the heat exchanger plate stack edge 5, which at least the nearest heat exchanger. exchanger plate 4 at least partially, here completely, bordered edge and thereby fixed in position relative to the base plate 3. About the base plate 3, the plate heat exchanger 1, for example, attached to an internal combustion engine. In order to form the base plate 3 on the one hand cost-effective and on the other hand structurally simple and weight-optimized, in the inventive base plate 3 according to FIGS. 2 to 6, the edge 5 at least partially formed by an integral with the base plate 3 and along along folding lines 6a to 6d bent projection 7, in particular a sheet metal extension 7, formed. The base plate 3 may, for example, from sheet metal or light metal, in particular aluminum, be formed.
Die Grundplatte 3 ist darüber hinaus im Wesentlichen aus einem Blechzuschnitt ausgebildet, der an den randparallelen Falzlinien 6a bis 6d einstückig anschließende Blechfortsätze 7 besitzt, die unter Bildung gedoppelter Blechbereiche 8 in Richtung der Wärmetauscherplatten 4 umgeschlagen und deren falzlinienferne Ränder 9 relativ zur Ebene des Blechzuschnitts aufgebogen und an einen benachbarten Rand der Wärmetauscherplatten 4 angeschmiegt sind. Unter Blechzuschnitt kann ein Zuschnitt aus einem Bandmaterial verstanden werden. The base plate 3 is also formed essentially of a sheet metal blank, which has integrally adjacent sheet metal extensions 7 on the edge-parallel folding lines 6a to 6d, 8 turned over to form double sheet metal areas in the direction of the heat exchanger plates 4 and bent falzlinienferne edges 9 relative to the plane of the sheet metal blank and are nestled against an adjacent edge of the heat exchanger plates 4. Under sheet metal blank can be understood a blank of a strip material.
Durch die erfindungsgemäße Ausbildung der Grundplatte 3 als Blechstanz- /Formteil lässt sich diese nicht nur kostengünstig und vergleichsweise einfach sondern zudem auch mit einer erhöhten Steifigkeit, bedingt durch die gedoppelten Blechbereiche 8, fertigen. Im Vergleich zu bisher aus dem Stand der Technik bekannten Grundplatten weist die erfindungsgemäße Grundplatte 3 jedoch ein deutlich geringeres Gewicht auf, da die Materialstärke sowie die eingesetzte Materialmenge deutlich reduziert werden können. Betrachtet man die Fig. 2, so kann man erkennen, dass die Grundplatte 3 einen Mittelbereich 10 aufweist, an dessen Längsseiten Fortsätze 7 angeordnet sind. Diese Fortsätze 7 sind jeweils nahe der Längsenden des Mittelbereichs 10 einstückig mit dem Mittelbereich 10 der Grundplatte 3 verbunden, wobei zwischen diesen Verbindungsbereichen, die im Wesentlichen den gedoppelten Bereichen 8 entsprechen, jeweils an der jeweiligen Falzlinie 6a und 6b entlang dieser Falzlinie 6a, 6b langgestreckte Aussparungen 1 1 vorgesehen sind. Due to the inventive design of the base plate 3 as Blechstanz- / molding this can not only cost and relatively simple but also with an increased rigidity, due to the doubled sheet metal areas 8 finished. Compared to previously known from the prior art base plates, however, the base plate 3 of the invention has a significantly lower weight, since the material thickness and the amount of material used can be significantly reduced. Looking at Fig. 2, it can be seen that the base plate 3 has a central region 10, on whose longitudinal sides projections 7 are arranged. These extensions 7 are each near the longitudinal ends of the central region 10 integral with the central region 10 of Base plate 3 is connected, wherein between these connecting portions, which substantially correspond to the doubled areas 8, respectively at the respective fold line 6a and 6b along this fold line 6a, 6b elongated recesses 1 1 are provided.
Der bei dem Ausstanzen der Grundplatte 3 anfallende Abfall kann selbstverständlich wiederverwendet und dem Herstellungsprozess wieder zugeführt, das heißt recycelt werden. Of course, the waste produced in the blanking of the base plate 3 can be reused and returned to the manufacturing process, that is, recycled.
Demgegenüber sind die Fortsätze 7 bei der Grundplatte 3 gemäß der Fig. 3 nur in einem Mittelabschnitt der jeweiligen Falzlinie 6a bis 6d einstückig mit dem Mittelbereich 10 der Grundplatte 3 verbunden, wobei beidseitig dieses Verbindungsbereichs zur jeweiligen Falzlinie 6a bis 6d symmetrische Einschnitte 12 zwischen dem jeweiligen Fortsatz 7 und dem Mittelbereich 10 der Grundplatte 3 vorgesehen sind. Gemäß der Fig. 3 ist dabei der um die Falzlinie 6b umgebogene Fortsatz 7 zugleich in seiner nicht umgebogenen, d. h. zum Mittelbereich 10 fluchtenden Stellung mit unterbrochen gezeichneter Linie dargestellt. Die übrigen Fortsätze 7 werden in ähnlicher Weise durch einfaches Umbiegen um die jeweiligen Falzlinien sowie das nachträgliche Aufstellen des Randes 9 hergestellt. In contrast, the projections 7 in the base plate 3 according to FIG. 3 are integrally connected only to a central portion of the respective fold line 6a to 6d with the central region 10 of the base plate 3, wherein on both sides of this connection region to the respective fold line 6a to 6d symmetrical cuts 12 between the respective Extension 7 and the central region 10 of the base plate 3 are provided. According to FIG. 3, the extension 7 bent around the folding line 6b is at the same time in its non-bent, d. H. to the central region 10 aligned position shown with broken line drawn. The remaining extensions 7 are made in a similar manner by simply bending around the respective folding lines and the subsequent setting up of the edge 9.
Fig. 4 zeigt eine Grundplatte 3, die im Wesentlichen derjenigen der Fig. 3 entspricht, wobei die Fortsätze 7 an den kürzeren Querseiten entfallen. In diesem Fall sind nur an den zwei Längsseiten des Mittelbereichs 10 der Grundplatte 3 mit dem Mittelbereich 10 einstückig verbundene Fortsätze 7 vorgesehen, wobei gemäß der Ausgestaltung nach Fig. 5 an den Querseiten des Mittelbereichs 10 durch aufliegend angeordnete und aufgebogene Blechstücke gedoppelte Befestigungsbereiche mit entsprechenden Rändern 9 vorgesehen werden können. Diese werden dann mit der Grundplatte 3 verbunden, bspw. verlötet. Die gemäß den Fig. 3 bis 5 gezeigten Grundplatten 3 weisen in Draufsicht die Form eines ellipsenartig langgestreckten Zwölfecks auf. Sämtlichen gemäß den Fig. 2 bis 5 gezeigten erfindungsgemäßen Ausführungsformen der Grundplatte 3 ist gemein, dass diese Eckbereiche des Wärmetauscherplattenstapels mit den Rändern 9 nicht einfassen. Fig. 4 shows a base plate 3, which substantially corresponds to that of Fig. 3, wherein the projections 7 omitted on the shorter transverse sides. In this case, only on the two longitudinal sides of the central region 10 of the base plate 3 integrally connected extensions 7 are provided, wherein according to the embodiment of FIG. 5 on the transverse sides of the central region 10 by lying arranged and straightened sheet metal pieces doubled attachment areas with corresponding edges 9 can be provided. These are then connected to the base plate 3, for example. Soldered. The base plates 3 shown in FIGS. 3 to 5 have in plan view the shape of an ellipse-like elongated dodecagon. All of the embodiments of the base plate 3 according to the invention shown in FIGS. 2 to 5 have in common that these corner regions of the heat exchanger plate stack do not border with the edges 9.
Die gemäß der Fig. 6 dargestellte Grundplatte 3 fällt nicht unter die vorliegende Erfindung und ist im Druckgussverfahren hergestellt. Die Dicke der Grundplatte 3 gemäß der Fig. 6 beträgt dabei ca. 2 bis 6 mm, wobei zusätzliche Versteifungsrippen 13 zur Aussteifung eingebracht sind. Hier kommt insbesondere ein Alumi- niumdruckguss bzw. Aluminiumextrusionsverfahren in Betracht. The base plate 3 shown in FIG. 6 is not covered by the present invention and is produced by die-casting. The thickness of the base plate 3 according to FIG. 6 is approximately 2 to 6 mm, wherein additional stiffening ribs 13 are introduced for stiffening. Here, in particular, an aluminum die casting or aluminum extrusion process is considered.
Mittels der erfindungsgemäßen Grundplatte 3 ist es möglich, diese material-, ge- wichts- und kostenoptimiert herzustellen, wobei die für einen Fluidaustausch erforderlichen Öffnungen 14 in einem einzigen Stanzschritt zusätzlich hergestellt werden können. Eine Befestigung der Grundplatte 3 bspw. an einem Verbrennungsmotor erfolgt über geeignete Befestigungsmittel, bspw. Schrauben, die in den gedoppelten Bereichen 8 und damit in den besonders ausgesteiften Bereichen 8 angreifen. Die Herstellung der Grundplatte 3 erfolgt bspw. durch automatisierte Stanz- und Umformprozesse, wodurch die vergleichsweise steife Grundplatte 3 schnell, qualitativ hochwertig und kostengünstig gefertigt werden kann. By means of the base plate 3 according to the invention, it is possible to produce this material, weight and cost optimized, wherein the openings required for a fluid exchange 14 can be additionally produced in a single punching step. An attachment of the base plate 3, for example, to an internal combustion engine via suitable fastening means, for example. Screws which engage in the doubled areas 8 and thus in the particularly stiffened areas 8. The production of the base plate 3 takes place, for example, by automated punching and forming processes, whereby the comparatively rigid base plate 3 can be manufactured quickly, with high quality and at low cost.

Claims

Ansprüche claims
1 . Plattenwärmetauscher (1 ) mit einer Deckplatte (2), einer Grundplatte (3) und dazwischen stapelartig angeordneten Wärmetauscherplatten (4), wobei die Grundplatte (3) die benachbarte Wärmetauscherplatte (4) randseitig überragt und einen in Richtung des Wärmetauscherplattenstapels aufgestellten Rand (9) aufweist, der zumindest abschnittsweise einem Umriss des Wärmetauscherplattenstapels folgt, 1 . Plate heat exchanger (1) with a cover plate (2), a base plate (3) and interposed stacked heat exchanger plates (4), the base plate (3) the adjacent heat exchanger plate (4) surmounted edge and a set up in the direction of the heat exchanger plate stack edge (9) which at least partially follows an outline of the heat exchanger plate stack,
dadurch gekennzeichnet, characterized,
dass der Rand (9) zumindest bereichsweise durch einen einstückig mit der Grundplatte (3) ausgebildeten und durch entlang von Falzlinien (6a,6b,6c,6d) umgebogenen Fortsatz (7) gebildet ist. the edge (9) is formed, at least in regions, by an extension (7) formed integrally with the base plate (3) and folded along along fold lines (6a, 6b, 6c, 6d).
2. Plattenwärmetauscher nach Anspruch 1 , 2. Plate heat exchanger according to claim 1,
dadurch gekennzeichnet, characterized,
dass die Grundplatte (3) aus dünnem Blech, insbesondere aus Aluminium, ausgebildet ist. the base plate (3) is formed of thin sheet metal, in particular of aluminum.
3. Plattenwärmetauscher nach Anspruch 1 oder 2, 3. Plate heat exchanger according to claim 1 or 2,
dadurch gekennzeichnet, characterized,
dass die Grundplatte (3) im Wesentlichen aus einem Blechzuschnitt besteht, der an randparallelen Falzlinien (6a,6b,6c,6d) einstückig anschließende (Blech- )fortsätze (7) aufweist, die unter Bildung gedoppelter (Blech-)bereiche (8) in Richtung der Wärmetauscherplatten (4) umgeschlagen und deren falzlinienferne Ränder (9) relativ zur Ebene des Blechzuschnittes aufgebogen und an einen benachbarten Rand der Wärmetauscherplatten (4) angeschmiegt sind. that the base plate (3) essentially consists of a sheet metal blank which has edge-parallel folding lines (6a, 6b, 6c, 6d) integrally adjoining (sheet) extensions (7) which form double (sheet) regions (8) in the direction of the heat exchanger plates (4) turned over and their falzlinienferne Edges (9) are bent relative to the plane of the sheet metal blank and nestled against an adjacent edge of the heat exchanger plates (4).
4. Plattenwärmetauscher nach Anspruch 3, 4. Plate heat exchanger according to claim 3,
dadurch gekennzeichnet, characterized,
dass die (Blech-)fortsätze (7) nur in einem Mittelabschnitt der jeweiligen Falzlinie (6a,6b,6c,6d) einstückig mit einem Mittelbereich (10) der Grundplatte (3) verbunden sind, und dass beidseitig dieses Verbindungsbereiches zur jeweiligen Falzlinie (6a,6b,6c,6d) symmetrische Einschnitte (12) zwischen dem jeweiligen Fortsatz (7) und dem Mittelbereich (10) der Grundplatte (3) vorgesehen sind. in that the (sheet) extensions (7) are integrally connected to a central region (10) of the base plate (3) only in a middle section of the respective fold line (6a, 6b, 6c, 6d), and on both sides of this connection region to the respective fold line (FIG. 6a, 6b, 6c, 6d) symmetrical cuts (12) between the respective extension (7) and the central region (10) of the base plate (3) are provided.
5. Plattenwärmetauscher nach Anspruch 3 oder 4, 5. Plate heat exchanger according to claim 3 or 4,
dadurch gekennzeichnet, characterized,
dass nur an zwei Längsseiten des Mittelbereiches (10) der Grundplatte (3) mit dem Mittelbereich (10) einstückig verbundene (Blech-)fortsätze (7) vorgesehen sind, und dass an den Querseiten des Mittelbereiches (10) durch aufliegend angeordnete und aufgebogene Blechstücke (7') gedoppelte Befestigungsbereiche (8) mit entsprechenden Rändern (9) vorgesehen sind. that only on two longitudinal sides of the central region (10) of the base plate (3) with the central region (10) integrally connected (sheet) extensions (7) are provided, and that on the transverse sides of the central region (10) by lying arranged and unbent pieces of sheet metal (7 ') doubled attachment areas (8) are provided with corresponding edges (9).
6. Plattenwärmetauscher nach einem der Ansprüche 1 bis 3, 6. Plate heat exchanger according to one of claims 1 to 3,
dadurch gekennzeichnet, characterized,
dass an den Längsseiten des Mittelbereiches (10) angeordnete (Blech-)fortsätze (7) jeweils nahe der Längsenden des Mittelbereiches einstückig mit dem Mittelbereich (10) der Grundplatte (3) verbunden sind, und dass zwischen diesen Verbindungsbereichen jeweils an der jeweiligen Falzlinie (6a,6b,6c,6d) entlang der Falzlinie (6a,6b,6c,6d) langgestreckte Aussparung (1 1 ) vorgesehen ist. that on the longitudinal sides of the central region (10) arranged (sheet) extensions (7) each near the longitudinal ends of the central region in one piece with the central region (10) of the base plate (3) are connected, and that between these connecting regions in each case at the respective fold line ( 6a, 6b, 6c, 6d) along the fold line (6a, 6b, 6c, 6d) elongated recess (1 1) is provided.
7. Plattenwärmetauscher nach einem der Ansprüche 1 bis 6, 7. Plate heat exchanger according to one of claims 1 to 6,
dadurch gekennzeichnet, dass die Grundplatte (3) in Draufsicht die Form eines ellipsenartig langgestreckten Zwölfecks aufweist. characterized, that the base plate (3) in plan view has the shape of an ellipse-like elongated dodecagon.
8. Plattenwärmetauscher nach einem der Ansprüche 1 bis 7, 8. Plate heat exchanger according to one of claims 1 to 7,
dadurch gekennzeichnet, characterized,
dass der Rand (9) Eckbereiche der Wärmetauscherplatten (4) nicht einfasst. the edge (9) does not enclose corner regions of the heat exchanger plates (4).
9. Grundplatte (3) für einen Plattenwärmetauscher (1 ) nach einem der Ansprüche 1 bis 8, bei dem die Grundplatte (3) einen in Richtung des Wärmetauscherplattenstapels aufgewölbten Rand (9) aufweist, der durch einen einstückig mit der Grundplatte (3) ausgebildeten und entlang von Falzlinien (6a,6b,6c,6d) umgebogenen Fortsatz (7) gebildet ist. 9. base plate (3) for a plate heat exchanger (1) according to any one of claims 1 to 8, wherein the base plate (3) has a curved in the direction of the heat exchanger plate stack edge (9) formed by an integral with the base plate (3) and along fold lines (6a, 6b, 6c, 6d) bent projection (7) is formed.
***** *****
EP12740960.5A 2011-08-11 2012-07-26 Plate heat exchanger Not-in-force EP2742304B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011080824A DE102011080824A1 (en) 2011-08-11 2011-08-11 Plate heat exchanger
PCT/EP2012/064710 WO2013020823A1 (en) 2011-08-11 2012-07-26 Plate heat exchanger

Publications (2)

Publication Number Publication Date
EP2742304A1 true EP2742304A1 (en) 2014-06-18
EP2742304B1 EP2742304B1 (en) 2019-04-03

Family

ID=46598512

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12740960.5A Not-in-force EP2742304B1 (en) 2011-08-11 2012-07-26 Plate heat exchanger

Country Status (6)

Country Link
US (1) US10048013B2 (en)
EP (1) EP2742304B1 (en)
JP (1) JP6158809B2 (en)
CN (1) CN103717990B (en)
DE (1) DE102011080824A1 (en)
WO (1) WO2013020823A1 (en)

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Also Published As

Publication number Publication date
JP6158809B2 (en) 2017-07-05
US10048013B2 (en) 2018-08-14
CN103717990A (en) 2014-04-09
US20140352935A1 (en) 2014-12-04
WO2013020823A1 (en) 2013-02-14
JP2014521921A (en) 2014-08-28
DE102011080824A1 (en) 2013-02-14
EP2742304B1 (en) 2019-04-03
CN103717990B (en) 2016-03-02

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