EP2742305A1 - Plate heat exchanger - Google Patents

Plate heat exchanger

Info

Publication number
EP2742305A1
EP2742305A1 EP12740964.7A EP12740964A EP2742305A1 EP 2742305 A1 EP2742305 A1 EP 2742305A1 EP 12740964 A EP12740964 A EP 12740964A EP 2742305 A1 EP2742305 A1 EP 2742305A1
Authority
EP
European Patent Office
Prior art keywords
plate
heat exchanger
flange
plate heat
stack
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
EP12740964.7A
Other languages
German (de)
French (fr)
Other versions
EP2742305B1 (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
Priority to PL12740964T priority Critical patent/PL2742305T3/en
Publication of EP2742305A1 publication Critical patent/EP2742305A1/en
Application granted granted Critical
Publication of EP2742305B1 publication Critical patent/EP2742305B1/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
    • 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
    • F28F9/02—Header boxes; End plates
    • 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

Definitions

  • the invention relates to a plate heat exchanger, in particular for water and oil, with a plurality of stacked plates, each formed in the form of flat, nested trays with substantially flat bottoms, and are sealed to each other at their tub edges and within the formed by them Plate stack alternately separating successive first and second chambers from each other, wherein the associated via first openings in the plates connected to each other in parallel first chambers of a first fluid (eg water) and the associated via second openings in the plates parallel to each other second chambers of a second Fluid (eg oil) can be flowed through in parallel, and with a provided for holding the heat exchanger base or connection plate on a front side of the plate stack.
  • a first fluid eg water
  • a second Fluid eg oil
  • Such plate heat exchangers are typically used in motor vehicles as oil cooler, ie the one chambers are flowed through by the oil to be cooled and the other chambers of the cooling water serving as a cooling medium. With a view to a good efficiency is regularly provided to let the two fluids in heat exchange flow in opposite directions of flow in order to realize a heat exchange according to the countercurrent principle.
  • a so-called cross-flow construction is known in which the flow paths of the two fluids cross over diagonally, such that the flow paths have large opposing directional components.
  • Further plate heat exchangers are known, for example, from DE 10 2004 003 790 A1, DE 10 2010 001 828 A1, WO 2007/038871 A1, WO 201 1/006825 A2 and WO 201 1/01 1861 A1.
  • the heat exchanger When used as an oil cooler of an internal combustion engine, the heat exchanger is regularly supported on stable parts of the motor housing, in which case a stress by the engine-side vibrations is inevitable.
  • the base plate was comparatively thick-walled and heavy, as well as being extremely rigid, e.g. as a stamped part. Nevertheless, cracks have occurred in the connection area between the plate stack and the base plate or connection plate after a long service life of the heat exchanger, so that no operating time adapted to the service life of the respective internal combustion engine could be achieved.
  • the object of the invention is to create a construction which is permanently safe in relation to vibrations and temperature changes.
  • the base or terminal plate is arranged on the front side of the plate stack formed by the convex side of a plate and made of flat material, which to form a at the bottom and / or tub rim the frontal plate frame-like adjacent recording and a plate stack framing flange is formed.
  • the flange of the base plate or connecting plate is thereby circumferentially bent / angled on both its stack-side inner edge and at its free outer edge, wherein fastening holes provided on the flange are arranged between the two circumferential windings.
  • the term flange is understood to mean of course also a flange surface or a flange plate.
  • the invention is based on the general idea of forming the base or connection plate in a comparatively thin-walled manner with a receiving frame lying positively against the bottom and / or tub rim of the end-side plate.
  • the base or connection plate supports the heat exchanger over a large area and, accordingly, all connections, in particular soldered connections or the like, between the heat exchanger and the base plate or connection plate are loaded comparatively little. All these advantages are realized to a particularly high degree, if the base or connection plate according to a preferred embodiment of the invention forms with their inclusion for the plate stack a bedmiegtes to the bottom or tub edge of the frontal plate bed.
  • the base or terminal plate may be formed as a one-piece molding, wherein the flange merges at its inner edge into the receptacle or the bed and can be bent at its outer edge according to a further advantageous embodiment of the invention.
  • the base or connection plate may also be composed of two parts or more parts, i. be designed as a built part.
  • a double-layered or multi-layered flange can be provided.
  • the outer edge of the aforementioned flat material blank can also be bent so that a particularly stiff profile is formed.
  • FIG. 3 is a of FIG. 1 corresponding perspective view of a Grundg. Connection plate according to a modified embodiment and a longitudinal section of this base or connection plate with inserted plate heat exchanger.
  • the basic or connecting plate 10 shown in Fig. 1 consists of a flat material, such as sheet metal, preferably aluminum or stainless steel sheet, which is formed according to the drawing.
  • the base or terminal plate 10 has a molded-bed 1 1, whose shape is adapted to the shape of the male plate heat exchanger, as will be apparent below.
  • a large rectangular recess 12 is provided, which contributes to the weight saving.
  • 1 1 openings 13 are arranged for the fluid connections of the plate heat exchanger in the bottom surface of the bed.
  • the bed 1 1 is framed by a Flanschflä- che 15, which is provided for stiffening with a downwardly bent edge 14.
  • the flange 15 is circumferentially bent / unwound both at its stack-side inner edge and at its free outer edge, wherein fastening holes 16 provided on the flange are arranged between the two circumferential windings.
  • the flange 15 is considerably stiffened by the fact that it forms with the edge surfaces of the bed 1 1 a bed 1 1 framing angle profile.
  • the flange 15 has the shape of an elongated octagon, so that there are relatively wide Flansch vom Kunststoff Kunststoff Kunststoff Kunststoff Kunststoff Kunststoff Kunststoff Kunststoff Kunststoff Kunststoff Kunststoff Kunststoff Kunststoffe at mounting holes 16.
  • the basic or connecting plate 10 shown in Fig. 1 can be formed in a simple manner from a sheet or other flat material by pressing, stamping or deep drawing. As a flat material is possibly also a plate of a sufficiently heat-resistant and deformable material that may be reinforced with fibers suitable. The transformation of such a workpiece can be done in a similar manner as the deformation of the sheet.
  • FIG. 2 now shows the base or connection plate 10 in combination with a plate heat exchanger 1.
  • This consists in basically known manner of stacked plates 2 in the form of shallow trays with substantially flat bottoms. Between each two plates remains a layered flow space for a fluid, such as water or oil.
  • the plates 2 are shaped and formed so that when the plates 2 are assembled into a stack, first and second flow spaces are formed, each connected in parallel, with the first and second flow spaces alternately following each other within the plate stack.
  • a through-flow of oil flow space is arranged immediately adjacent to a flow space through which water flows.
  • At the top or bottom plate 2 of the heat exchanger 1 can (not shown) Connecting lines for the supply and discharge of the two fluids are attached or be.
  • Fig. 2 shows that the bed 1 1 (see FIG. 1) is adapted to the convex side of the bottom of the plate 2 in the representation of FIG. 2 plate heat exchanger 1 and accordingly conforms to the edge zones of the bottom and the tub rim of this plate ,
  • This fixation can be carried out in a basically known manner by soldering or welding the edge of the recess 12 (cf. FIG. 1) to the bottom of the lowermost plate 2 of the plate heat exchanger 1.
  • the above-mentioned connecting pipes (not shown) of the plate heat exchanger 1 can also be used or contribute to the anchoring or fixing of the plate heat exchanger 1 to the openings 13 shown in FIG. 1.
  • a built-up base or connection plate 20 is provided.
  • This consists of a flat plate 21, which has the shape of an elongated octagon.
  • an annular flange 22 is arranged lying, which is provided with an upwardly curved outer edge and an upwardly curved inner edge.
  • the flange 22 on the base or connection plate 20 is thus circumferentially bent / unwound both at its stack-side inner edge and at its free outer edge, wherein on the flange 22 provided fastening holes 16 are arranged between the two circumferential windings.
  • the outer edge is adapted to the octagonal shape of the plate 21, the inner edge has a rectangular shape corresponding to the floor plan of the plate to be absorbed by the base plate or plate heat exchanger. 1
  • the inner edge has a rectangular shape corresponding to the floor plan of the plate to be absorbed by the base plate or plate heat exchanger. 1
  • the plate heat exchanger 1 bed 1 1 by the bent inner edge of the Flange plate 22 and formed within this edge extending central region of the plate 21.
  • openings 13 in Fig. 1 corresponding openings 23 are provided for connecting lines of the plate heat exchanger 1.
  • the flange 15, 22 may also form a U-profile with a mounting holes 16 receiving U-base, which has at the mounting holes 16 each have a maximum width.
  • FIG. 4 now shows the combination of the base or connection plate 20 with the plate heat exchanger 1.
  • the bent inner edge of the flange plate 22 is adapted to the inclination of the tub rim of the bottom plate of the plate heat exchanger and accordingly conforms to the tub rim.
  • the base plate or terminal plate 10 and 20 is ensured by the shape of a high stability even when manufactured from a thin-walled sheet. This is achieved in particular by the fact that the flange face 15 in FIG. 1 forms a semi-tube-like profile with the downwardly bent outer edge and the transition to the bed 11. Similarly, the flange plate 22 also has a half tube-like profile with its upwardly curved inner and outer edges.

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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, in particular for an oil cooling arrangement. Said exchanger has a thin-walled base or connecting plate comprising a bed, which receives the heat exchanger in a form-fitting manner on an end face and on lateral surfaces adjoining said end face, and a flange surrounding the plate heat exchanger, the flange plane being parallel to the end face.

Description

Plattenwärmetauscher  Plate heat exchanger
Die Erfindung bezieht sich auf einen Plattenwärmetauscher, insbesondere für Wasser und Öl, mit einer Vielzahl gestapelter Platten, die jeweils im Form flacher, ineinander gesetzter Wannen mit im Wesentlichen ebenen Böden ausgebildet, sowie an ihren Wannenrändern dicht miteinander verbunden sind und innerhalb des von ihnen gebildeten Plattenstapels alternierend aufeinander folgende erste und zweite Kammern voneinander abtrennen, wobei die über zugeordnete erste Öffnungen in den Platten miteinander parallel verbundenen ersten Kammern von einem ersten Fluid (z.B. Wasser) und die über zugeordnete zweite Öffnungen in den Platten miteinander parallel verbundenen zweiten Kammern von einem zweiten Fluid (z.B. Öl) parallel durchströmbar sind, und mit einer zur Halterung des Wärmetauschers vorgesehenen Grund- bzw. Anschlussplatte auf einer Stirnseite des Plattenstapels. The invention relates to a plate heat exchanger, in particular for water and oil, with a plurality of stacked plates, each formed in the form of flat, nested trays with substantially flat bottoms, and are sealed to each other at their tub edges and within the formed by them Plate stack alternately separating successive first and second chambers from each other, wherein the associated via first openings in the plates connected to each other in parallel first chambers of a first fluid (eg water) and the associated via second openings in the plates parallel to each other second chambers of a second Fluid (eg oil) can be flowed through in parallel, and with a provided for holding the heat exchanger base or connection plate on a front side of the plate stack.
Derartige Plattenwärmetauscher sind allgemein bekannt. Beispielhaft kann auf DE 10 2009 030 095 A1 , EP 0 623 798 A2 und EP 1 562 014 A1 verwiesen werden. Such plate heat exchangers are well known. By way of example, reference can be made to DE 10 2009 030 095 A1, EP 0 623 798 A2 and EP 1 562 014 A1.
Derartige Plattenwärmetauscher werden typischerweise in Kraftfahrzeugen als Ölkühler eingesetzt, d.h. die einen Kammern werden vom zu kühlenden Öl und die anderen Kammern von dem als Kühlmedium dienenden Kühlwasser durchströmt. Im Hinblick auf einen guten Wirkungsgrad ist dabei regelmäßig vorgesehen, die beiden im Wärmeaustausch stehenden Fluide in einander entgegengesetzten Strömungsrichtungen fließen zu lassen, um einen Wärmeaustausch nach dem Gegenstromprinzip zu verwirklichen. Alternativ ist auch eine sogenannte Kreuzstrombauweise bekannt, bei der sich die Strömungswege der beiden Fluide diagonal überkreuzen, derart, dass die Strömungswege große einander entgegen gerichtete Richtungskomponenten aufweisen. Such plate heat exchangers are typically used in motor vehicles as oil cooler, ie the one chambers are flowed through by the oil to be cooled and the other chambers of the cooling water serving as a cooling medium. With a view to a good efficiency is regularly provided to let the two fluids in heat exchange flow in opposite directions of flow in order to realize a heat exchange according to the countercurrent principle. Alternatively, a so-called cross-flow construction is known in which the flow paths of the two fluids cross over diagonally, such that the flow paths have large opposing directional components.
Weitere Plattenwärmetauscher sind beispielsweise aus der DE 10 2004 003 790 A1 , der DE 10 2010 001 828 A1 , der WO 2007/038871 A1 , der WO 201 1 /006825 A2 und der WO 201 1/01 1861 A1 bekannt. Further plate heat exchangers are known, for example, from DE 10 2004 003 790 A1, DE 10 2010 001 828 A1, WO 2007/038871 A1, WO 201 1/006825 A2 and WO 201 1/01 1861 A1.
Bei Verwendung als Ölkühler eines Verbrennungsmotors ist der Wärmetauscher regelmäßig an stabilen Teilen des Motorgehäuses gehaltert, wobei dann eine Beanspruchung durch die motorseitigen Vibrationen unvermeidlich wird. When used as an oil cooler of an internal combustion engine, the heat exchanger is regularly supported on stable parts of the motor housing, in which case a stress by the engine-side vibrations is inevitable.
Hinzu treten Belastungen durch wechselnde Temperaturen, die zu mehr oder weniger großen Verspannungen zwischen benachbarten Platten führen können. Da die Entwicklung von Verbrennungsmotoren jetzt und in Zukunft eine Tendenz in Richtung von Verbrennungsmotoren mit kleinen Hubräumen und vergleichsweise geringer Zylinderzahl haben wird, nehmen die Beanspruchungen durch Temperaturwechsel und Vibrationen tendenziell zu. In addition, stresses occur due to changing temperatures, which can lead to more or less great tension between adjacent plates. Since the development of internal combustion engines now and in the future will have a tendency towards small displacement internal combustion engines with a comparatively small number of cylinders, the stresses of temperature cycling and vibration tend to increase.
Bei bisherigen Plattenwärmetauschern war die Grund- bzw. Anschlussplatte vergleichsweise dickwandig und schwer, sowie äußerst steif ausgebildet, z.B. als Stanzteil. Gleichwohl sind im Verbindungsbereich zwischen Plattenstapel und Grund- bzw. Anschlussplatte nach längerer Einsatzzeit des Wärmetauschers Risse aufgetreten, so dass keine an die Lebensdauer des jeweiligen Verbrennungsmotors angepasste Einsatzzeit erreicht werden konnte. In previous plate heat exchangers, the base plate was comparatively thick-walled and heavy, as well as being extremely rigid, e.g. as a stamped part. Nevertheless, cracks have occurred in the connection area between the plate stack and the base plate or connection plate after a long service life of the heat exchanger, so that no operating time adapted to the service life of the respective internal combustion engine could be achieved.
Hier setzt die Erfindung an, wobei eine einfache und leichtgewichtige Konstruktion angestrebt wird. Aufgabe der Erfindung ist es, eine gegenüber Vibrationen und Temperaturwech- seln dauerhaft sichere Konstruktion zu schaffen. This is where the invention comes in, aiming for a simple and lightweight construction. The object of the invention is to create a construction which is permanently safe in relation to vibrations and temperature changes.
Diese Aufgabe wird bei einem Plattenwärmetauscher der eingangs angegebenen Art erfindungsgemäß dadurch gelöst, dass die Grund- bzw. Anschlussplatte auf der von der Konvexseite einer Platte gebildeten Stirnseite des Plattenstapels angeordnet und aus Flachmaterial hergestellt ist, welches unter Bildung einer am Boden- und/oder Wannenrand der stirnseitigen Platte rahmenartig anliegenden Aufnahme sowie eines den Plattenstapel umrahmenden Flansches umgeformt ist. Der Flansch der Grund- bzw. Anschlussplatte ist dabei sowohl an seinem sta- pelseitigen inneren Rand als auch an seinem freien äußeren Rand umlaufend umgebogen/abgewinkelt, wobei am Flansch vorgesehene Befestigungslöcher zwischen den beiden umlaufenden Abwicklungen angeordnet sind. In der weiteren Beschreibung wird unter dem Begriff Flansch selbstverständlich auch eine Flanschfläche oder eine Flanschplatte verstanden. This object is achieved according to the invention in a plate heat exchanger of the type specified, that the base or terminal plate is arranged on the front side of the plate stack formed by the convex side of a plate and made of flat material, which to form a at the bottom and / or tub rim the frontal plate frame-like adjacent recording and a plate stack framing flange is formed. The flange of the base plate or connecting plate is thereby circumferentially bent / angled on both its stack-side inner edge and at its free outer edge, wherein fastening holes provided on the flange are arranged between the two circumferential windings. In the further description, the term flange is understood to mean of course also a flange surface or a flange plate.
Die Erfindung beruht auf dem allgemeinen Gedanken, die Grund- bzw. Anschlussplatte vergleichsweise dünnwandig mit einem formschlüssig am Boden- und/oder Wannenrand der stirnseitigen Platte anliegenden Aufnahmerahmen auszubilden. Damit werden eine optimale Anpassung an die Form des Plattenstapels sowie eine großflächige Anlage der Grund- bzw. Anschlussplatte am Plattenstapel gewährleistet. The invention is based on the general idea of forming the base or connection plate in a comparatively thin-walled manner with a receiving frame lying positively against the bottom and / or tub rim of the end-side plate. Thus, an optimal adaptation to the shape of the plate stack and a large-scale investment of the base or connection plate are ensured on the plate stack.
Insbesondere ist vorteilhaft, dass die Grund- bzw. Anschlussplatte den Wärmetauscher großflächig abstützt und dementsprechend alle Verbindungen, insbesondere Lötverbindungen oder dgl., zwischen Wärmetauscher und Grund- bzw. Anschlussplatte vergleichsweise wenig belastet werden. All diese Vorteile werden in besonders hohem Maße verwirklicht, wenn die Grund- bzw. Anschlussplatte gemäß einer bevorzugten Ausführungsform der Erfindung mit ihrer Aufnahme für den Plattenstapel ein an den Boden- bzw. Wannenrand der stirnseitigen Platte angeschmiegtes Bett bildet. In herstellungsmäßig besonders einfacher Ausgestaltung kann die Grund- bzw. Anschlussplatte als einstückiges Formteil ausgebildet sein, wobei der Flansch an seinem Innenrand in die Aufnahme beziehungsweise das Bett übergeht und an seinem äußeren Rand gemäß einer weiteren zweckmäßigen Ausgestaltung der Erfindung umgebogen sein kann. In particular, it is advantageous that the base or connection plate supports the heat exchanger over a large area and, accordingly, all connections, in particular soldered connections or the like, between the heat exchanger and the base plate or connection plate are loaded comparatively little. All these advantages are realized to a particularly high degree, if the base or connection plate according to a preferred embodiment of the invention forms with their inclusion for the plate stack a bedmiegtes to the bottom or tub edge of the frontal plate bed. In manufacturing moderately simple embodiment, the base or terminal plate may be formed as a one-piece molding, wherein the flange merges at its inner edge into the receptacle or the bed and can be bent at its outer edge according to a further advantageous embodiment of the invention.
Gemäß einer weiteren vorteilhaften Ausführungsform der Erfindung kann die Grund- bzw. Anschlussplatte auch zweiteilig oder mehrteilig zusammengesetzt sein, d.h. als gebautes Teil ausgebildet sein. Insbesondere kann dabei ein dop- pellagiger oder mehrlagiger Flansch vorgesehen sein. According to a further advantageous embodiment of the invention, the base or connection plate may also be composed of two parts or more parts, i. be designed as a built part. In particular, a double-layered or multi-layered flange can be provided.
Gemäß einer vorteilhaften Ausgestaltung dieser Bauform kann dann ein zur Bildung der Doppellage dienender ringförmiger Flachmaterialzuschnitt an seiner inneren Randzone zu einer am Wannenrand der stirnseitigen Platte des Plattenstapels anliegenden Wandung umgebogen sein. According to an advantageous embodiment of this design can then be bent to form the double layer annular flat blank at its inner edge zone to a voltage applied to the edge of the front plate of the plate stack wall.
Darüber hinaus kann auch der äußere Rand des vorgenannten Flachmaterialzuschnitts umgebogen sein, so dass ein besonders steifes Profil gebildet wird. In addition, the outer edge of the aforementioned flat material blank can also be bent so that a particularly stiff profile is formed.
Im Übrigen wird hinsichtlich bevorzugter Merkmale der Erfindung auf die Ansprüche und die nachfolgende Erläuterung der Zeichnung verwiesen, anhand der besonders bevorzugte Ausführungsformen näher beschrieben werden. Schutz wird nicht für angegebene oder dargestellte Merkmalskombinationen, sondern auch für prinzipiell beliebige Kombinationen der angegebenen oder dargestellten Einzelmerkmale beansprucht. Incidentally, with regard to preferred features of the invention, reference is made to the claims and the following explanation of the drawing, with reference to the particularly preferred embodiments will be described in more detail. Protection is not claimed for specified or illustrated feature combinations, but also for basically any combination of the specified or illustrated individual features.
In der Zeichnung zeigt: In the drawing shows:
Fig. 1 eine perspektivische Draufsicht auf die Grund- bzw. Anschlussplatte, 1 is a perspective plan view of the base or connection plate,
Fig. 2 einen Längsschnitt dieser Grund- bzw. Anschlussplatte mit eingesetztem Plattenwärmetauscher, 2 shows a longitudinal section of this basic or connection plate with inserted plate heat exchanger,
Fig. 3 eine der Fig. 1 entsprechende perspektivische Ansicht einer Grundbzw. Anschlussplatte gemäß einer abgewandelten Ausführungsform und einen Längsschnitt dieser Grund- bzw. Anschlussplatte mit eingesetztem Plattenwärmetauscher. Fig. 3 is a of FIG. 1 corresponding perspective view of a Grundbzw. Connection plate according to a modified embodiment and a longitudinal section of this base or connection plate with inserted plate heat exchanger.
Die in Fig. 1 dargestellte Grund- bzw. Anschlussplatte 10 besteht aus einem Flachmaterial, beispielsweise Blech, vorzugsweise Aluminium oder Edelstahlblech, welches entsprechend der Zeichnung umgeformt ist. Wie dargestellt, besitzt die Grund- bzw. Anschlussplatte 10 ein eingeformtes Bett 1 1 , dessen Form der Form des aufzunehmenden Plattenwärmetauschers angepasst ist, wie weiter unten deutlich wird. Innerhalb des Bodens des Bettes ist eine große rechteckige Aussparung 12 vorgesehen, die zur Gewichtseinsparung beiträgt. Außerdem sind in der Bodenfläche des Bettes 1 1 Öffnungen 13 für die Fluidanschlüsse des Plattenwärmetauschers angeordnet. Das Bett 1 1 wird umrahmt von einer Flanschflä- che 15, die zur Versteifung mit einem nach abwärts umgebogenen Rand 14 versehen ist. Die Flanschfläche 15 ist sowohl an seinem stapelseitigen inneren Rand als auch an seinem freien äußeren Rand umlaufend umgebogen/abgewickelt, wobei am Flansch vorgesehene Befestigungslöcher 16 zwischen den beiden umlaufenden Abwicklungen angeordnet sind. Im Übrigen wird die Flanschfläche 15 dadurch erheblich versteift, dass sie mit den Randflächen des Bettes 1 1 ein das Bett 1 1 umrahmendes Winkelprofil bildet. In Draufsicht besitzt die Flanschfläche 15 die Form eines langgestreckten Achtecks, so dass an Befestigungslöchern 16 vergleichsweise breite Flanschflächenbereiche vorliegen. Die in Fig. 1 dargestellte Grund- bzw. Anschlussplatte 10 kann in einfacher Weise aus einem Blech oder einem sonstigen Flachmaterial durch Pressung, Prägung oder Tiefziehen geformt werden. Als Flachmaterial ist ggf. auch eine Platte aus einem hinreichend hitzefesten und umformbaren Material, das mit Fasern verstärkt sein kann, geeignet. Die Umformung eines solchen Werkstückes kann in ähnlicher Weise wie die Umformung vom Blech erfolgen. The basic or connecting plate 10 shown in Fig. 1 consists of a flat material, such as sheet metal, preferably aluminum or stainless steel sheet, which is formed according to the drawing. As shown, the base or terminal plate 10 has a molded-bed 1 1, whose shape is adapted to the shape of the male plate heat exchanger, as will be apparent below. Within the bottom of the bed, a large rectangular recess 12 is provided, which contributes to the weight saving. In addition, 1 1 openings 13 are arranged for the fluid connections of the plate heat exchanger in the bottom surface of the bed. The bed 1 1 is framed by a Flanschflä- che 15, which is provided for stiffening with a downwardly bent edge 14. The flange 15 is circumferentially bent / unwound both at its stack-side inner edge and at its free outer edge, wherein fastening holes 16 provided on the flange are arranged between the two circumferential windings. Incidentally, the flange 15 is considerably stiffened by the fact that it forms with the edge surfaces of the bed 1 1 a bed 1 1 framing angle profile. In plan view, the flange 15 has the shape of an elongated octagon, so that there are relatively wide Flanschflächenbereiche at mounting holes 16. The basic or connecting plate 10 shown in Fig. 1 can be formed in a simple manner from a sheet or other flat material by pressing, stamping or deep drawing. As a flat material is possibly also a plate of a sufficiently heat-resistant and deformable material that may be reinforced with fibers suitable. The transformation of such a workpiece can be done in a similar manner as the deformation of the sheet.
Fig. 2 zeigt nun die Grund- bzw. Anschlussplatte 10 in Kombination mit einem Plattenwärmetauscher 1 . Dieser besteht in grundsätzlich bekannter Weise aus aufeinander gestapelten Platten 2 in Form flacher Wannen mit im Wesentlichen ebenen Böden. Zwischen je zwei Platten verbleibt ein schichtförmiger Durchflussraum für ein Fluid, z.B. Wasser oder Öl. Die Platten 2 sind so geformt und ausgebildet, dass beim Zusammenbau der Platten 2 zu einem Stapel erste und zweite Durchflussräume gebildet werden, die je für sich parallel geschaltet sind, wobei innerhalb des Plattenstapels die ersten und zweiten Durchflussräume alternierend aufeinander folgen. Somit ist im Falle eines Öl-Wasser-Wärmetauschers jeweils ein von Öl durchströmter Durchflussraum unmittelbar benachbart zu einem von Wasser durchströmten Durchflussraum angeordnet. An der obersten bzw. untersten Platte 2 des Wärmetauschers 1 können (nicht dargestellte) An- Schlussleitungen für die Zu- und Ableitung der beiden Fluide angebracht sein bzw. werden. FIG. 2 now shows the base or connection plate 10 in combination with a plate heat exchanger 1. This consists in basically known manner of stacked plates 2 in the form of shallow trays with substantially flat bottoms. Between each two plates remains a layered flow space for a fluid, such as water or oil. The plates 2 are shaped and formed so that when the plates 2 are assembled into a stack, first and second flow spaces are formed, each connected in parallel, with the first and second flow spaces alternately following each other within the plate stack. Thus, in the case of an oil-water heat exchanger, in each case a through-flow of oil flow space is arranged immediately adjacent to a flow space through which water flows. At the top or bottom plate 2 of the heat exchanger 1 can (not shown) Connecting lines for the supply and discharge of the two fluids are attached or be.
Fig. 2 zeigt, dass das Bett 1 1 (vergleiche die Fig. 1 ) an die Konvexseite der in der Darstellung der Fig. 2 untersten Platte 2 des Plattenwärmetauschers 1 angepasst ist und sich dementsprechend an die Randzonen des Bodens und des Wannenrandes dieser Platte anschmiegt. Fig. 2 shows that the bed 1 1 (see FIG. 1) is adapted to the convex side of the bottom of the plate 2 in the representation of FIG. 2 plate heat exchanger 1 and accordingly conforms to the edge zones of the bottom and the tub rim of this plate ,
Diese Fixierung kann in grundsätzlich bekannter Weise dadurch erfolgen, dass der Rand der Aussparung 12 (vergleiche Fig. 1 ) mit dem Boden der untersten Platte 2 des Plattenwärmetauschers 1 verlötet oder verschweißt wird. Im Übrigen können auch die oben erwähnten (nicht dargestellten) Anschlussleitungen des Plattenwärmetauschers 1 zur Verankerung bzw. Fixierung des Plattenwärmetauschers 1 an den in Fig. 1 dargestellten Öffnungen 13 dienen oder beitragen. This fixation can be carried out in a basically known manner by soldering or welding the edge of the recess 12 (cf. FIG. 1) to the bottom of the lowermost plate 2 of the plate heat exchanger 1. Incidentally, the above-mentioned connecting pipes (not shown) of the plate heat exchanger 1 can also be used or contribute to the anchoring or fixing of the plate heat exchanger 1 to the openings 13 shown in FIG. 1.
Bei der in den Fig. 3 und 4 dargestellten Ausführungsform ist eine gebaute Grund- bzw. Anschlussplatte 20 vorgesehen. Diese besteht aus einer ebenen Platte 21 , die die Form eines langgestreckten Achteckes aufweist. Auf einer Randzone dieser Platte 21 ist aufliegend ein ringförmiger Flansch 22 angeordnet, der mit einem aufwärts gebogenen Außenrand und einem aufwärts gebogenen Innenrand versehen ist. Der Flansch 22 an der Grund- bzw. Anschlussplatte 20 ist somit sowohl an seinem stapelseitigen inneren Rand als auch an seinem freien äußeren Rand umlaufend umgebogen/abgewickelt, wobei am Flansch 22 vorgesehene Befestigungslöcher 16 zwischen den beiden umlaufenden Abwicklungen angeordnet sind. Der Außenrand ist der Achteck-Form der Platte 21 angepasst, der Innenrand besitzt eine Rechteck-Form entsprechend dem Grundriss des von der Grund- bzw. Anschlussplatte aufzunehmenden Plattenwärmetauschers 1 . Im Beispiel der Fig. 3 wird also das für die Aufnahme des Plattenwärmetauschers 1 vorgesehene Bett 1 1 durch den aufgebogenen inneren Rand der Flanschplatte 22 sowie den innerhalb dieses Randes erstreckten Zentralbereich der Platte 21 gebildet. Dabei sind in der Platte 21 den Öffnungen 13 in Fig. 1 entsprechende Öffnungen 23 für Anschlussleitungen des Plattenwärmetauschers 1 vorgesehen. In the embodiment shown in FIGS. 3 and 4, a built-up base or connection plate 20 is provided. This consists of a flat plate 21, which has the shape of an elongated octagon. On an edge zone of this plate 21, an annular flange 22 is arranged lying, which is provided with an upwardly curved outer edge and an upwardly curved inner edge. The flange 22 on the base or connection plate 20 is thus circumferentially bent / unwound both at its stack-side inner edge and at its free outer edge, wherein on the flange 22 provided fastening holes 16 are arranged between the two circumferential windings. The outer edge is adapted to the octagonal shape of the plate 21, the inner edge has a rectangular shape corresponding to the floor plan of the plate to be absorbed by the base plate or plate heat exchanger. 1 In the example of FIG. 3, therefore, provided for receiving the plate heat exchanger 1 bed 1 1 by the bent inner edge of the Flange plate 22 and formed within this edge extending central region of the plate 21. In this case, in the plate 21 openings 13 in Fig. 1 corresponding openings 23 are provided for connecting lines of the plate heat exchanger 1.
Der Flansch 15, 22 kann darüber hinaus ein U-Profil mit einer Befestigungslöcher 16 aufnehmenden U-Basis ausbilden, die an den Befestigungslöchern 16 jeweils eine maximale Breite besitzt. The flange 15, 22 may also form a U-profile with a mounting holes 16 receiving U-base, which has at the mounting holes 16 each have a maximum width.
Fig. 4 zeigt nun die Kombination der Grund- bzw. Anschlussplatte 20 mit dem Plattenwärmetauscher 1 . Insbesondere wird erkennbar, dass der aufgebogene Innenrand der Flanschplatte 22 der Neigung des Wannenrandes der untersten Platte des Plattenwärmetauschers angepasst ist und sich dementsprechend an den Wannenrand anschmiegt. FIG. 4 now shows the combination of the base or connection plate 20 with the plate heat exchanger 1. In particular, it can be seen that the bent inner edge of the flange plate 22 is adapted to the inclination of the tub rim of the bottom plate of the plate heat exchanger and accordingly conforms to the tub rim.
Bei den dargestellten Ausführungsformen der Grund- bzw. Anschlussplatte 10 bzw. 20 wird durch deren Formgebung auch bei Herstellung aus einem dünnwandigen Flachmaterial eine hohe Stabilität gewährleistet. Dies wird insbesondere dadurch erreicht, dass die Flanschfläche 15 in Fig. 1 mit dem nach abwärts umgebogenen Außenrand und dem Übergang zum Bett 1 1 ein halbrohrähnliches Profil bildet. In entsprechender Weise besitzt die Flanschplatte 22 mit ihren aufwärts gebogenen Innen- und Außenrändern ebenfalls ein halbrohrähnliches Profil. In the illustrated embodiments of the base plate or terminal plate 10 and 20 is ensured by the shape of a high stability even when manufactured from a thin-walled sheet. This is achieved in particular by the fact that the flange face 15 in FIG. 1 forms a semi-tube-like profile with the downwardly bent outer edge and the transition to the bed 11. Similarly, the flange plate 22 also has a half tube-like profile with its upwardly curved inner and outer edges.
Abweichend von der Darstellung der Fig. 3 könnte in der Platte 21 in deren Zentralbereich eine der Aussparung 12 in Fig. 1 entsprechende Öffnung vorgesehen sein. Notwithstanding the illustration of Fig. 3 could be provided in the plate 21 in the central region of the recess 12 in Fig. 1 corresponding opening.

Claims

Ansprüche claims
1 . Plattenwärmetauscher (1 ), insbesondere für Wasser und Öl, mit einer Vielzahl gestapelter Platten (2), die jeweils in Form flacher, ineinander eingesetzter Wannen mit im Wesentlichen ebenen Böden ausgebildet sowie an ihren Wannenrändern dicht miteinander verbunden sind, und die innerhalb des von ihnen gebildeten Plattenstapels alternierend aufeinander folgende erste und zweite Kammern voneinander abtrennen, wobei die über zugeordnete erste Öffnungen in den Platten miteinander parallel verbundenen ersten Kammern von einem ersten Fluid (Wasser) und die über zugeordnete zweite Öffnungen in den Platten miteinander parallel verbundenen zweiten Kammern von einem zweiten Fluid (Öl) parallel durchströmbar sind, und mit einer zur Halterung des Wärmetauschers vorgesehenen Grund- bzw. Anschlussplatte auf einer Stirnseite des Plattenstapels, wobei die Grund- bzw. Anschlussplatte (10) auf der von der Konvexseite einer Platte gebildeten Stirnseite des Plattenstapels angeordnet und aus Flachmaterial hergestellt ist, welches unter Bildung einer am Boden- und/oder Wannenrand der stirnseitigen Platte rahmenartig anliegenden Aufnahme (Bett 1 1 ) umgeformt ist, 1 . Plate heat exchanger (1), in particular for water and oil, with a plurality of stacked plates (2), each formed in the form of flat, nested trays with substantially flat bottoms and are sealed together at their tub edges, and within of them formed stack of plates alternately separating successive first and second chambers from each other, wherein the associated via first openings in the plates connected to each other in parallel first chambers of a first fluid (water) and the associated via second openings in the plates parallel to each other second chambers of a second Fluid (oil) can be flowed through in parallel, and with a provided for holding the heat exchanger base or connection plate on an end face of the plate stack, the base or connection plate (10) arranged on the convex side of a plate end face of the plate stack and from Fl achmaterial is prepared, which is formed to form a frame at the bottom and / or tub edge of the frontal plate recording (bed 1 1),
dadurch gekennzeichnet, characterized,
dass ein Flansch (15, 22) sowohl an seinem stapelseitigen inneren Rand als auch an seinem freien äußeren Rand umlaufend umgebogen/abgewickelt ist, und dass am Flansch vorgesehene Befestigungslöcher (16) zwischen den beiden umlaufenden Abwicklungen angeordnet sind. that a flange (15, 22) is circumferentially bent / unwound both at its stack-side inner edge and at its free outer edge, and in that fastening holes (16) provided on the flange are arranged between the two circumferential windings.
2. Plattenwärmetauscher nach Anspruch 1 , 2. Plate heat exchanger according to claim 1,
dadurch gekennzeichnet, dass die Aufnahme ein an den Boden- bzw. Wannenrand angeschmiegtes Bett (1 1 ) bildet. characterized, in that the receptacle forms a bed (11), which is nestled against the bottom or tub edge.
3. Plattenwärmetauscher nach Anspruch 1 oder 2, 3. Plate heat exchanger according to claim 1 or 2,
dadurch gekennzeichnet, characterized,
dass die Grund- bzw. Anschlussplatte (10) als einstückiges Formteil ausgebildet ist, wobei der Flansch (15) an seinem inneren Rand in die Aufnahme bzw. in das Bett (1 1 ) übergeht und an seinem äußeren Rand (14) umgebogen bzw. abgewinkelt ist. in that the flange (15) merges at its inner edge into the receptacle or into the bed (1 1) and bent over at its outer edge (14) or is angled.
4. Plattenwärmetauscher nach Anspruch 1 oder 2, 4. Plate heat exchanger according to claim 1 or 2,
dadurch gekennzeichnet, characterized,
dass die Grund- bzw. Anschlussplatte (20) als gebautes Teil mit doppellagigem oder mehrlagigem Flansch (22) ausgebildet ist, wobei die Doppel- bzw. Mehrfachlage eine ringförmige Lage aufweist, die an ihrer inneren Randzone in einen am Wannenrand der stirnseitigen Platte des Plattenstapels anliegende Wandung umgebogen ist. in that the base or connection plate (20) is designed as a built-up part with a double-layered or multi-layered flange (22), wherein the double or multiple layer has an annular layer which, at its inner edge zone, penetrates into the edge of the plate stack of the plate stack adjacent wall is bent.
5. Plattenwärmetauscher nach Anspruch 4, 5. Plate heat exchanger according to claim 4,
dadurch gekennzeichnet, characterized,
dass der äußere Rand der ringförmigen Lage (22) umgebogen bzw. abgewinkelt ist. that the outer edge of the annular layer (22) is bent or angled.
6. Plattenwärmetauscher nach einem der Ansprüche 1 bis 5, 6. Plate heat exchanger according to one of claims 1 to 5,
dadurch gekennzeichnet, characterized,
dass die Grund- bzw. Anschlussplatte (10, 20) zumindest einen Randbereich des Wannenbodens der stirnseitigen Platte des Plattenstapels untergreift und in diesem Bereich Öffnungen (13, 23) aufweist, an bzw. in denen Anschlussleitungen des Plattenwärmetauschers (1 ) angeordnet sind. the base or connection plate (10, 20) engages under at least one edge region of the trough bottom of the plate stack and has openings (13, 23) in this region, at or in which connection lines of the plate heat exchanger (1) are arranged.
7. Plattenwärmetauscher nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, 7. Plate heat exchanger according to one of claims 1 to 6, characterized
dass der Flansch ein U-Profil mit einer Befestigungslöcher (16) aufnehmenden U- Basis ausgebildet ist, die an den Befestigungslöchern (16) jeweils eine maximale Breite besitzt. the flange is a U-profile with a mounting holes (16) receiving U-base is formed, which has at the mounting holes (16) each have a maximum width.
EP12740964.7A 2011-08-11 2012-07-27 Plate heat exchanger Not-in-force EP2742305B1 (en)

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PCT/EP2012/064759 WO2013020828A1 (en) 2011-08-11 2012-07-27 Plate heat exchanger

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EP (1) EP2742305B1 (en)
JP (1) JP6072036B2 (en)
CN (1) CN103703334B (en)
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EP2742305B1 (en) 2017-09-06
PL2742305T3 (en) 2017-12-29
US9863715B2 (en) 2018-01-09
CN103703334A (en) 2014-04-02
CN103703334B (en) 2017-09-19
JP6072036B2 (en) 2017-02-01
DE102011080828A1 (en) 2013-02-14
US20140311722A1 (en) 2014-10-23
WO2013020828A1 (en) 2013-02-14
JP2014521922A (en) 2014-08-28

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