EP0751364B1 - Plate-like heat exchanger, more in particularly oil cooler - Google Patents

Plate-like heat exchanger, more in particularly oil cooler Download PDF

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Publication number
EP0751364B1
EP0751364B1 EP96108211A EP96108211A EP0751364B1 EP 0751364 B1 EP0751364 B1 EP 0751364B1 EP 96108211 A EP96108211 A EP 96108211A EP 96108211 A EP96108211 A EP 96108211A EP 0751364 B1 EP0751364 B1 EP 0751364B1
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EP
European Patent Office
Prior art keywords
plate
heat exchanger
insert
type heat
inserts
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP96108211A
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German (de)
French (fr)
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EP0751364A3 (en
EP0751364A2 (en
Inventor
Victor Dipl.-Ing. Brost (Fh)
Rainer Käsinger
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.)
Modine Manufacturing Co
Original Assignee
Laengerer and Reich GmbH and Co
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Publication date
Application filed by Laengerer and Reich GmbH and Co filed Critical Laengerer and Reich GmbH and Co
Publication of EP0751364A2 publication Critical patent/EP0751364A2/en
Publication of EP0751364A3 publication Critical patent/EP0751364A3/en
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Publication of EP0751364B1 publication Critical patent/EP0751364B1/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F27/00Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
    • F28F27/02Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus for controlling the distribution of heat-exchange media between different channels
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D9/00Heat-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
    • F28D9/0012Heat-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 apparatus having an annular form
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0049Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for lubricants, e.g. oil coolers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2250/00Arrangements for modifying the flow of the heat exchange media, e.g. flow guiding means; Particular flow patterns
    • F28F2250/10Particular pattern of flow of the heat exchange media
    • F28F2250/102Particular pattern of flow of the heat exchange media with change of flow direction
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2280/00Mounting arrangements; Arrangements for facilitating assembling or disassembling of heat exchanger parts
    • F28F2280/04Means for preventing wrong assembling of parts

Definitions

  • the invention relates to a plate heat exchanger, in particular an oil cooler, with a Stack of heat exchanger plates, forming separate flow channels for the heat-exchanging media and where the in and Outlet openings for at least one medium on the same side of the plate stack lie with inserts provided in the inflow and outflow channels Flow deflection.
  • the invention further relates to a production method for the designated plate heat exchanger.
  • a plate heat exchanger is known, for example is provided there for cooling a liquid food.
  • the in and out Outlet channels arranged are approximately tubular with a number of Cutouts and guide elements and serve to even out the flow in all flow channels, in particular in those of the fluid inlet or exits distant areas, which affects the reduction in pressure loss is taken. All flow channels are in this plate heat exchanger flows in one direction - a multiple, as in a so-called multi-flow principle Existing flow is not and should not be achieved here.
  • Heat exchangers with multiple meandering flow are also known.
  • DE-AS 22 09 395 has one in a channel for this purpose used and soldered so-called stiffening plate provided, which the partially Flow deflection causes.
  • DE-OS 35 36 316 which an oil cooler in Disc construction concerns, is due to the installation of partitions with openings reached the meandering flow through the cooler.
  • the object of the invention is seen in a plate heat exchanger, in particular To provide oil coolers with the features of the generic term, the have a multiple flow and therefore with a lower flow rate should have a remarkable cooling capacity and is very easy to manufacture is.
  • inserts that consist of a single component and are used in one work step.
  • the coupling part of the component connecting the inserts is subsequently removed, for example separated.
  • the distribution inserts are made of a suitable plastic. They are held in the interior of the inlet and outlet channels by clamping or clamping forces.
  • the distribution inserts connected before being inserted into the ducts have a number of manufacturing advantages. For example, it cannot happen that incorrect distribution inserts are accidentally used or a distribution insert is forgotten.
  • the insertion can be carried out in one operation and can be very easily in the production line insert for plate heat exchanger.
  • the multiple flow, the one has the result of a substantial increase in the cooling capacity, according to the invention realized the characterizing part of claim 1.
  • the features of claims 2 up to 4 serve to design and specify. All of which are set out in the claims Features should be considered as expressly disclosed at this point, even if not all should be mentioned in the description below.
  • the plate heat exchanger according to the invention is characterized by a meandering shape Flow path of the coolant, with an insert in the one inflow or outflow channel, which essentially blocks this at a predetermined point and with a second insert in the other inflow or outflow channel, i.e. only sleeved over part of its entire length.
  • an insert is preferably disc-like and elastically deformable in order to adhere well a predetermined location, at a plate joint, within the one inflow or outflow channel, to nestle and fulfill its sealing function.
  • the other use is a sleeve with the end located inside the other channel all-round sealing lip.
  • the intended sealing points in the flow channels are at different heights.
  • the disk-like insert has an introductory part that carries a mounting ring that is clamped or clamped to the one connecting flange is.
  • the other insert, the sleeve also has such a fastening ring, which is held in the same way on the other connecting flange.
  • the meandering shape 3 of the flow path of the medium is in in this case water, represented by the oil cooler.
  • Oil cooler shown is constructed as a plate heat exchanger 1 and exists, for example from 26 individual heat exchanger plates 2, which are stacked one inside the other Contact points, on the outer edge and the inner plate joints 8, are soldered. Due to the shape of the heat exchanger plates 2 are separate flow channels formed for oil 9 and water 13. Only the inflow and outflow channels 5; 6 are shown for water through the vertically superimposed plate joints 8 of the heat exchanger plates 2 limited and round in cross section.
  • the one in the pictures on the left located channel is provided as an inflow channel 5, while the outflow channel 6 the right side is arranged.
  • the plate heat exchanger 1 is on a base plate 4 built up, the fastening devices, not shown, for example in a motor vehicle.
  • the connecting flanges 25 are also on the base plate 4 provided for cooling water connections, not shown.
  • the top end of the plate heat exchanger 1 is formed by a cover plate 7.
  • Fig. 1 is the disk-shaped insert 10 which blocks the inflow duct 5 in the fifth from below Panel joint 8. Since in this example the entire component 50 is made of plastic is, the disc 11 has such a good elasticity that it is all-round in the plate joint 8 hugs and ensures sufficient tightness.
  • the water has a larger one Amount of heat absorbed and dissipated by the oil than with a simple flow could be the case.
  • the sealing lip 22 on the sleeve 21 ensures that the water entering the sleeve 21 from above does not return to the channel 6 can flow.
  • the end of the sleeve 21 with the sealing lip 22 is at the bottom ninth plate joint 8.
  • the coupling part 30 is removed according to FIG. 1 with a suitable separating tool 26, which is shown in principle on the bottom left.
  • the details of the injection molded component 50 with the two inserts 10, 20, the Introductory part for the insert 10, the positioning stops 31, which are located on the Coupling part 30 are in the inserted state (see also Fig. 1 and 2) to the Attaching flanges 25 are best seen in FIG. 3.
  • a suitable cutting tool 26 can be used for this.
  • the separation points 32 and the positioning stops 31 are in a cross section belonging to FIG. 3, below the main character, shown separately.
  • FIG. 4 shows a fastening and sealing ring 24, which is a component, in two views of the component 50 and its function is both the inserts 10; 20 in their position in the inflow or outflow channels 5; 6 hold additionally, as well the channel 5; 6, in which the insert 20, i.e. the sleeve 21, is located at the lower end to seal.
  • a suitable sealing washer 11 is contained in three views in FIG. 5. It consists of four wings 111 which overlap at the edges 112 in the inserted state and thus ensure sufficient tightness.
  • Such a design of the sealing washer 11 has the advantage that it can easily pass through the inflow or outflow channel 5; 6, past the plate joints 8, to the intended sealing point in channel 5; 6 can be pushed.
  • the manufacture of plastic is relatively easy to do.
  • the present invention can be extended to other embodiments, that should be included.
  • the introductory part 12 of the disc-shaped insert 10 not as a central rod but also as a cross section tubular part - but with large jacket-side openings - formed be. It is also not absolutely necessary to set the sealing points to the height of the panel joints 8 to position.
  • the insert 10, which has been described as a disk-like could also be designed differently if it is only suitable as defined in claim 1 is a channel 5; 6 essentially seal. That's why there is one plug-like design possible. That should be preferred if another somewhat stiffer material is selected.

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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)

Description

Die Erfindung betrifft einen Plattenwärmetauscher, insbesondere Ölkühler, mit einem Stapel von Wärmetauscherplatten, die unter Bildung von getrennten Strömungskanälen für die wärmeaustauschenden Medien ineinanderliegen und bei dem die Ein-und Austrittsmündungen für wenigstens das eine Medium auf der gleichen Seite des Plattenstapels liegen, mit in den Ein-und Ausströmkanälen vorgesehenen Einsätzen zur Strömungsumlenkung. Ferner betrifft die Erfindung ein Herstellungsverfahren für den bezeichneten Plattenwärmetauscher.The invention relates to a plate heat exchanger, in particular an oil cooler, with a Stack of heat exchanger plates, forming separate flow channels for the heat-exchanging media and where the in and Outlet openings for at least one medium on the same side of the plate stack lie with inserts provided in the inflow and outflow channels Flow deflection. The invention further relates to a production method for the designated plate heat exchanger.

Aus der DE-OS 30 21 246 ist beispielsweise so ein Plattenwärmetauscher bekannt, der dort zur Kühlung eines flüssigen Nahrungsmittels vorgesehen ist. Die in den Ein-und Austrittskanälen angeordneten Einsätze sind etwa rohrförmig mit einer Reihe von Ausschnitten und Leitelementen und dienen der Vergleichmäßigung der Strömung in allen Strömungskanälen, insbesondere in den vom Strömungsmitteleintritt bzw - austritt entfernt liegenden Bereichen, wodurch Einfluß auf die Senkung der Druckverluste genommen wird. In diesem Plattenwärmetauscher werden alle Strömungskanäle in einer Richtung durchströmt.Eine mehrfache, wie in einem sogenannten Mehrflußprinzip vorhandene Durchströmung wird und soll hier nicht erreicht werden.From DE-OS 30 21 246 such a plate heat exchanger is known, for example is provided there for cooling a liquid food. The in and out Outlet channels arranged are approximately tubular with a number of Cutouts and guide elements and serve to even out the flow in all flow channels, in particular in those of the fluid inlet or exits distant areas, which affects the reduction in pressure loss is taken. All flow channels are in this plate heat exchanger flows in one direction - a multiple, as in a so-called multi-flow principle Existing flow is not and should not be achieved here.

Wärmetauscher mit mehrfacher mäanderartiger Durchströmung sind ebenfalls bekannt. Beispielsweise ist zu diesem Zweck in der DE-AS 22 09 395 eine in einem Kanal eingesetzte und verlötete sogenannte Versteifungsplatte vorgesehen, die die teilweise Strömungsumlenkung bewirkt. In der DE-OS 35 36 316, die einen Ölkühler in Scheibenbauweise betrifft, wird durch den Einbau von Zwischenwänden mit Durchbrechungen die mäanderförmige Durchströmung des Kühlers erreicht. Diese Lösungen sind deshalb unvollkommen, weil die Durchströmung nicht weiter variierbar ist, d.h. die Strömungsumlenkelemente sind fest eingebaut und nicht von ihrem Ort entfernbar. Sie werden während des Montageprozesses eingelegt und in dem nachfolgenden Fügeprozeß fest verbunden, gewöhnlich gelötet.Heat exchangers with multiple meandering flow are also known. For example, DE-AS 22 09 395 has one in a channel for this purpose used and soldered so-called stiffening plate provided, which the partially Flow deflection causes. In DE-OS 35 36 316, which an oil cooler in Disc construction concerns, is due to the installation of partitions with openings reached the meandering flow through the cooler. These solutions are imperfect because the flow cannot be varied any further, i.e. the flow deflection elements are permanently installed and cannot be removed from their location. They are inserted during the assembly process and in the following one Joining process firmly connected, usually soldered.

Die Aufgabe der Erfindung wird darin gesehen, einen Plattenwärmetauscher, insbesondere Ölkühler mit den Merkmalen des Oberbegriffes zur Verfügung zu stellen, der eine Mehrfachdurchströmung aufweisen und deshalb bei geringerem Mengenstrom über eine beachtliche Kühlleistung verfügen soll und der sehr herstellungsfreundlich ist. The object of the invention is seen in a plate heat exchanger, in particular To provide oil coolers with the features of the generic term, the have a multiple flow and therefore with a lower flow rate should have a remarkable cooling capacity and is very easy to manufacture is.

Die erfindungsgemäße Lösung ergibt sich aus den Patentansprüchen.The solution according to the invention results from the patent claims.

Die Herstellungsfreundlichkeit wurde durch den kennzeichnenden Teil des Anspruches 5 realisiert. Danach kommen Einsätze zur Anwendung, die aus einem einheitlichen Bauteil bestehen und in einem Arbeitsschritt eingesetzt werden. Nachfolgend wird der die Einsätze verbindende Kupplungsteil des Bauteils entfernt, beispielsweise abgetrennt. Die Verteilungseinsätze sind aus einem geeigneten Kunststoff hergestellt. Sie sind durch Klemm-oder Spannkräfte im Inneren der Ein-und Austrittskanäle gehalten. Die vor dem Einsetzen in die Kanäle verbundenen Verteilungseinsätze besitzen eine Reihe von fertigungstechnischen Vorteilen. So kann es beispielsweise nicht vorkommen, daß versehentlich falsche Verteilungseinsätze angewendet werden oder ein Verteilungseinsatz vergessen wird. Für die Funktion des Plattenwärmetauschers ist es ohne Bedeutung, ob der eine Einsatz in den Einströmkanal und der andere Einsatz in den Ausströmkanal oder umgekehrt eingesetzt wurde , wenn nur jeweils die nachstehend beschriebenen unterschiedlich gestalteten Einsätze verwendet werden. Aus diesem Grund ist in den Ansprüchen von Ein-oder Ausströmkanal die Rede.The ease of manufacture was realized by the characterizing part of claim 5. Then inserts are used that consist of a single component and are used in one work step. The coupling part of the component connecting the inserts is subsequently removed, for example separated. The distribution inserts are made of a suitable plastic. They are held in the interior of the inlet and outlet channels by clamping or clamping forces. The distribution inserts connected before being inserted into the ducts have a number of manufacturing advantages. For example, it cannot happen that incorrect distribution inserts are accidentally used or a distribution insert is forgotten. For the function of the plate heat exchanger, it is irrelevant whether one insert was inserted into the inflow duct and the other insert into the outflow duct or vice versa, if only the differently designed inserts described below are used. For this reason, the claims refer to the inflow or outflow channel.

Das Einsetzen ist in einem Arbeitsgang ausführbar und läßt sich sehr gut in die Fertigungslinie für Plattenwärmetauscher einfügen. Die Mehrfachdurchströmung, die eine wesentliche Steigerung der Kühlleistung zur Folge hat, wird erfindungsgemäß durch den kennzeichnenden Teil des Anspruches 1 realisiert. Die Merkmale der Ansprüche 2 bis 4 dienen der Ausgestaltung und Präzisierung. Alle in den Patentansprüchen niedergelegten Merkmale sollen als an dieser Stelle ausdrücklich offenbart gelten, auch wenn in der nachfolgenden Beschreibung nicht alle genannt sein sollten.The insertion can be carried out in one operation and can be very easily in the production line insert for plate heat exchanger. The multiple flow, the one has the result of a substantial increase in the cooling capacity, according to the invention realized the characterizing part of claim 1. The features of claims 2 up to 4 serve to design and specify. All of which are set out in the claims Features should be considered as expressly disclosed at this point, even if not all should be mentioned in the description below.

Der erfindungsgemäße Plattenwärmetauscher zeichnet sich durch einen mäanderförmigen Strömungsweg des Kühlmittels aus, mit einem Einsatz in dem einen Ein-oder Ausströmkanal, der diesen im wesentlichen an einer vorbestimmten Stelle absperrt und mit einem zweiten Einsatz in dem anderen Ein-oder Ausströmkanal, der diesen Kanal bereichsweise, d.h. nur über einen Teil seiner Gesamtlänge hülsenartig auskleidet. Der eine Einsatz ist vorzugsweise scheibenartig und elastisch verformbar, um sich gut an einer vorbestimmten Stelle, an einem Plattenstoß, innerhalb des einen Ein-oder Ausströmkanales, anzuschmiegen und seine Abdichtfunktion zu erfüllen. Der andere Einsatz ist eine Hülse mit am im Inneren des anderen Kanals befindlichen Ende angeordneter umlaufender Dichtlippe. Die vorgesehenen Abdichtstellen in den Strömungskanälen befinden sich auf unterschiedlicher Höhe. Eine günstige dreifache Durchströmung ergibt sich, wenn der scheibenartige Einsatz etwa in halber Höhe des Befestigungsendes des hülsenartigen Einsatzes vorgesehen wird. Zur zusätzlichen Befestigung und Einführung besitzt der scheibenartige Einsatz einen Einführungsteil, das einen Befestigungsring trägt, der an dem einen Anschlußflansch verklemmt oder eingespannt ist. Der andere Einsatz, die Hülse, besitzt ebenfalls einen solchen Befestigungsring, der in gleicher Weise an dem anderen Anschlußflansch gehalten ist.The plate heat exchanger according to the invention is characterized by a meandering shape Flow path of the coolant, with an insert in the one inflow or outflow channel, which essentially blocks this at a predetermined point and with a second insert in the other inflow or outflow channel, i.e. only sleeved over part of its entire length. Of the an insert is preferably disc-like and elastically deformable in order to adhere well a predetermined location, at a plate joint, within the one inflow or outflow channel, to nestle and fulfill its sealing function. The other use is a sleeve with the end located inside the other channel all-round sealing lip. The intended sealing points in the flow channels are at different heights. A cheap triple Flow occurs when the disk-like insert is about halfway up the Fastening end of the sleeve-like insert is provided. For additional attachment and introduction, the disc-like insert has an introductory part that carries a mounting ring that is clamped or clamped to the one connecting flange is. The other insert, the sleeve, also has such a fastening ring, which is held in the same way on the other connecting flange.

Durch die von der Strömungsumlenkung bewirkte höhere Strömungsgeschwindigkeit wird die Kühlleistung des Plattenwärmetauschers wesentlich erhöht .Due to the higher flow velocity caused by the flow deflection the cooling capacity of the plate heat exchanger is significantly increased.

Nachfolgend wird die Erfindung in einem Ausführungbeispiel unter Bezugnahme auf die Zeichnungen erläutert.
Es zeigen:

Fig. 1
ein Ölkühler im Schnitt mit im Einströmkanal angeordneter Abdichtscheibe und im Austrittskanal angeordneter Hülse;
Fig. 2
wie Fig. 1, mit einer Hülse im Eintrittskanal und einer Abdichtscheibe im Aus trittskanal;
Fig. 3
ein vorgefertigtes Bauteil mit den Einsätzen;
Fig. 4
ein Befestigungs-und Abdichtring;
Fig. 5
eine Dichtscheibe als Einsatz;
The invention is explained in an exemplary embodiment with reference to the drawings.
Show it:
Fig. 1
an oil cooler in section with a sealing disk arranged in the inflow channel and a sleeve arranged in the outlet channel;
Fig. 2
1, with a sleeve in the inlet channel and a sealing washer in the outlet channel;
Fig. 3
a prefabricated component with the inserts;
Fig. 4
a mounting and sealing ring;
Fig. 5
a sealing washer as an insert;

In den Fig. 1 und 2 ist die Mäanderform 3 des Durchströmweges des Mediums, in diesem Fall Wasser, durch den Ölkühler, dargestellt. Wie gut zu erkennen ist, bildet sich in jedem Fall eine mäanderartige Durchströmung des Ölkühlers aus, egal welcher der beiden Einsätze 10;20 in welchem der Kanäle 5;6 plaziert ist. Der in den Fig. 1 und 2 dargestellte Ölkühler ist als Plattenwärmetauscher 1 aufgebaut und besteht beispielsweise aus 26 einzelnen Wärmetauscherplatten 2, die ineinandergestapelt und an ihren Berührungsstellen, am aüßeren Rand und den inneren Plattenstößen 8, gelötet sind. Durch die Formgebung der Wärmetauscherplatten 2 sind getrennte Strömungskanäle für Öl 9 und Wasser 13 gebildet. Dargestellt sind nur die Ein-und Ausströmkanäle 5;6 für Wasser, die durch die vertikal übereinanderliegenden Plattenstöße 8 der Wärmetauscherplatten 2 begrenzt und im Querschnitt rund sind. Der in den Abbildungen links befindliche Kanal ist als Einströmkanal 5 vorgesehen, während der Ausströmkanal 6 auf der rechten Seite angeordnet ist. Der Plattenwärmetauscher 1 ist auf einer Grundplatte 4 aufgebaut, die über nicht dargestellte Befestigungsvorrichtungen, beispielsweise in einem Kraftfahrzeug verfügt. An der Grundplatte 4 sind ferner die Anschlußflansche 25 für nicht dargestellte Kühlwasseranschlüsse vorgesehen. Der obere Abschluß des Plattenwärmetauschers 1 wird durch eine Deckplatte 7 gebildet. In Fig. 1 befindet sich der scheibenförmige, den Einströmkanal 5 absperrende Einsatz 10 im von unten fünften Plattenstoß 8. Da in diesem Beispiel das gesamte Bauteil 50 aus Kunststoff hergestellt ist, besitzt die Scheibe 11 eine solch gute Elastizität, daß sie sich allseitig in dem Plattenstoß 8 anschmiegt und für ausreichende Dichtigkeit sorgt. Das Wasser strömt unten ein, gelangt bis zur Scheibe 11, verteilt sich horizontal in den Strömungskanälen 13, gelangt zur rechten Seite, wo es bis zur Dichtlippe 22 am oberen Ende der Hülse 21 aufsteigen kann und wieder gezwungen wird, horizontalen Weg zu nehmen, um im Einströmkanal 5 weiter nach oben bis zur Deckplatte 7 zu steigen und seinen Weg wieder nach rechts, zum Ausströmkanal 6 zu finden, über den das Wasser den Ölkühler wieder verläßt. Auf diesem mäanderartigen Durchströmweg hat das Wasser eine größere Wärmemenge von dem Öl aufgenommen und abgeführt als es bei einfacher Durchströmung der Fall sein könnte. Die Dichtlippe 22 an der Hülse 21 trägt dafür Sorge, daß das von oben in die Hülse 21 eintretende Wasser nicht wieder zurück in den Kanal 6 fließen kann. Das Ende der Hülse 21 mit der Dichtlippe 22 befindet sich am von unten neunten Plattenstoß 8. Das Entfernen des Kupplungsteils 30 erfolgt nach Fig. 1 mit einem geeigneten Trennwerkzeug 26, das links, unten prinzipiell dargestellt ist.1 and 2, the meandering shape 3 of the flow path of the medium is in in this case water, represented by the oil cooler. As can be clearly seen, is forming in any case a meandering flow through the oil cooler, no matter which of the two inserts 10; 20 in which of the channels 5; 6 is placed. 1 and 2 Oil cooler shown is constructed as a plate heat exchanger 1 and exists, for example from 26 individual heat exchanger plates 2, which are stacked one inside the other Contact points, on the outer edge and the inner plate joints 8, are soldered. Due to the shape of the heat exchanger plates 2 are separate flow channels formed for oil 9 and water 13. Only the inflow and outflow channels 5; 6 are shown for water through the vertically superimposed plate joints 8 of the heat exchanger plates 2 limited and round in cross section. The one in the pictures on the left located channel is provided as an inflow channel 5, while the outflow channel 6 the right side is arranged. The plate heat exchanger 1 is on a base plate 4 built up, the fastening devices, not shown, for example in a motor vehicle. The connecting flanges 25 are also on the base plate 4 provided for cooling water connections, not shown. The top end of the plate heat exchanger 1 is formed by a cover plate 7. In Fig. 1 is the disk-shaped insert 10 which blocks the inflow duct 5 in the fifth from below Panel joint 8. Since in this example the entire component 50 is made of plastic is, the disc 11 has such a good elasticity that it is all-round in the plate joint 8 hugs and ensures sufficient tightness. The water flows down one, reaches the disk 11, is distributed horizontally in the flow channels 13, reaches the right-hand side, where it reaches the sealing lip 22 at the upper end of the sleeve 21 can ascend and be forced again to take horizontal path to im Inflow channel 5 continue to climb up to the cover plate 7 and make its way again to the right, to find outflow channel 6, through which the water cooler leaves again. On this meandering flow path, the water has a larger one Amount of heat absorbed and dissipated by the oil than with a simple flow could be the case. The sealing lip 22 on the sleeve 21 ensures that the water entering the sleeve 21 from above does not return to the channel 6 can flow. The end of the sleeve 21 with the sealing lip 22 is at the bottom ninth plate joint 8. The coupling part 30 is removed according to FIG. 1 with a suitable separating tool 26, which is shown in principle on the bottom left.

Im Gegenbeispiel nach Fig. 2 steigt das einströmende Wasser in der Hülse 21 nach oben bis zur Deckplatte 7, weiter horizontal zum Ausströmkanal 6 und trifft dort auf die den Ausströmkanal 6 absperrende Scheibe 11, worauf der Strömungsweg horizontal in Richtung Einströmkanal 5 verläuft, wo das Wasser die Außenwandung 23 der Hülse 21 umspült und von dort, im unteren Bereich des Plattenwärmetauschers 1, wieder zum Ausströmkanal 6 gelangt, über den es den Wärmetauscher 1 wieder verläßt. In beiden Fällen ist die Durchströmung also mäanderartig. Der die Einsätze 10;20 verbindende Kupplungsteil 30 ist nach Fig. 2 bereits entfernt worden. Diese Darstellung zeigt den Ölkühler im einsatzbereiten Zustand.In the counterexample according to FIG. 2, the inflowing water in the sleeve 21 rises to the cover plate 7, further horizontally to the outflow channel 6 and there meets the Outflow channel 6 shut-off disc 11, whereupon the flow path horizontally in In the direction of the inflow duct 5, where the water flows through the outer wall 23 of the sleeve 21 washed around and from there, in the lower area of the plate heat exchanger 1, back to Outflow channel 6 passes through which it leaves the heat exchanger 1 again. In both In some cases the flow is meandering. The one connecting the inserts 10; 20 Coupling part 30 has already been removed according to FIG. 2. This illustration shows the Oil cooler ready for use.

Die Einzelheiten des Spritzguß-Bauteiles 50 mit den beiden Einsätzen 10;20, dem Einführungsteil für den Einsatz 10, den Positionierungsanschlägen 31, die sich am Kupplungsteil 30 befinden und im eingesetzten Zustand (siehe auch Fig. 1 und 2) an den Anschlußflanschen 25 anschlagen, sind am besten aus der Fig. 3 zu entnehmen. In der gleichen Höhe ist der Verbindungsquerschnitt zwischen dem Kupplungsteil 30 und den Einsätzen 10;20 schwächer ausgebildet, wodurch sich Trennstellen 32 ergeben, die das einfachere Abtrennen des Kupplungsteiles 30 - immer an der gleichen Stelle - gewährleisten. Dazu kann ein geeignetes Trennwerkzeug 26 verwendet werden. Die Trennstellen 32 sowie die Positionierungsanschläge 31 sind in einem zu Fig. 3 gehörenden Querschnitt, unterhalb der Hauptfigur, extra dargestellt worden.The details of the injection molded component 50 with the two inserts 10, 20, the Introductory part for the insert 10, the positioning stops 31, which are located on the Coupling part 30 are in the inserted state (see also Fig. 1 and 2) to the Attaching flanges 25 are best seen in FIG. 3. In the The same height is the connection cross section between the coupling part 30 and the Inserts 10; 20 formed weaker, which results in separation points 32 that the Ensure easier disconnection of the coupling part 30 - always in the same place. A suitable cutting tool 26 can be used for this. The separation points 32 and the positioning stops 31 are in a cross section belonging to FIG. 3, below the main character, shown separately.

Die Fig. 4 zeigt in zwei Ansichten einen Befestigungs-und Abdichtring 24, der ein Bestandteil des Bauteiles 50 ist und dessen Funktion darin besteht, sowohl die Einsätze 10;20 in ihrer Lage in den Ein-oder Ausströmkanälen 5 ; 6 zusätzlich zu halten, als auch den Kanal 5;6, in dem sich der Einsatz 20, also die Hülse 21, befindet, am unteren Ende abzudichten.4 shows a fastening and sealing ring 24, which is a component, in two views of the component 50 and its function is both the inserts 10; 20 in their position in the inflow or outflow channels 5; 6 hold additionally, as well the channel 5; 6, in which the insert 20, i.e. the sleeve 21, is located at the lower end to seal.

Eine geeignete Dichtscheibe 11 ist in drei Ansichten in Fig. 5 enthalten. Sie besteht aus vier Flügel 111, die sich im eingeschobenen Zustand an den Rändern 112 überlappen und so die ausreichende Dichtigkeit gewährleisten. Eine solche Gestaltung der Dichtscheibe 11 besitzt den Vorteil, daß sie sich leicht durch den Ein-oder Ausströmkanal 5;6, an den Plattenstößen 8 vorbei, bis zur vorgesehenen Abdichtstelle im Kanal 5;6 schieben läßt. Darüber hinaus ist die Herstellung aus Kunststoff relativ einfach zu bewerkstelligen.A suitable sealing washer 11 is contained in three views in FIG. 5. it consists of four wings 111 which overlap at the edges 112 in the inserted state and thus ensure sufficient tightness. Such a design of the sealing washer 11 has the advantage that it can easily pass through the inflow or outflow channel 5; 6, past the plate joints 8, to the intended sealing point in channel 5; 6 can be pushed. In addition, the manufacture of plastic is relatively easy to do.

Selbstverständlich ist die vorliegende Erfindung auf andere Ausführungsformen erweiterbar, die mit erfaßt sein sollen. So könnte beispielsweise das Einführungsteil 12 des scheibenförmigen Einsatzes 10 nicht als zentrischer Stab sondern ebenfalls als im Querschnitt rohrartiges Teil - allerdings mit großen mantelseitigen Öffnungen - ausgebildet sein. Ebenfalls ist nicht unbedingt notwendig, die Abdichtstellen auf die Höhe der Plattenstöße 8 zu positionieren. Der Einsatz 10, der als scheibenartig beschrieben wurde, könnte ebenfalls anders ausgebildet sein, wenn er nur, wie in Anspruch 1 definiert, geeignet ist, den einen Kanal 5 ; 6 im wesentlichen abzudichten. Deshalb ist hier auch eine pfropfenartige Gestaltung denkbar. Die dürfte dann präferiert werden, wenn ein anderer etwas steiferer Werkstoff ausgewählt wird.Vor allem ist das Verfahren zur Herstellung von Plattenwärmetauschern, bei denen Einsätze 10;20 in die Ein-und Ausströmkanäle 5;6 eingesetzt werden nicht auf solche beschränkt, die eine dreifache mäanderartige Durchströmung des Wärmetauschers bewirken. Eine ganze Reihe anders gestaltete und die Strömung beeinflussende Einsätze könnten nach dem beanspruchten Verfahren eingebaut werden.Of course, the present invention can be extended to other embodiments, that should be included. For example, the introductory part 12 of the disc-shaped insert 10 not as a central rod but also as a cross section tubular part - but with large jacket-side openings - formed be. It is also not absolutely necessary to set the sealing points to the height of the panel joints 8 to position. The insert 10, which has been described as a disk-like could also be designed differently if it is only suitable as defined in claim 1 is a channel 5; 6 essentially seal. That's why there is one plug-like design possible. That should be preferred if another somewhat stiffer material is selected. Above all, the manufacturing process of plate heat exchangers, in which inserts 10; 20 in the inflow and outflow channels 5; 6 are not limited to those that are triple meandering Flow through the heat exchanger. A whole lot of differently designed and inserts influencing the flow could be installed according to the claimed method become.

Claims (7)

  1. Plate-type heat exchanger, especially oil coolers with a stack of heat-exchanger plates which lie in one another by forming separate flow channels for the heat-exchanging mediums and where the inlet and outlet openings for at least the one medium are on the same side of the plate stack, with the inserts provided in the inlet and outlet channels for the baffling of flow,
    characterized in that
    the plate-type heat exchanger (1) is joined by metallic bond and inserts (10; 20) made of plastic are mounted in the inlet and outlet channel (5 and 6) in such a way that the one insert (10) seals off the one inlet or outlet channel (5 or 6) on the whole at a predetermined point and that the other insert (20) is a shell (21) which has a circumferential sealing lip (22) at the end of the shell (21) which is in the inside of the other channel (5 or 6) in order to seal off between the outer wall (23) of the shell (21) and the inside of the plate-type heat exchanger (1) against the medium flowing in from above, so that the flow path has a meander form.
  2. Plate-type heat exchanger according to claim 1, characterized in that the inserts (10; 20) can be manufactured as a single injection-molding part (50) and have a connection part (30) with positioning stops (31) for a correct determination of position of the inserts (10; 20) in the plate-type heat exchanger (1) and with predetermined breaking points (32) and/or points for the predetermined detachment of the connection part (30) after mounting.
  3. Plate-type heat exchangers according to claims 1 and 2, characterized in that the one insert (10) is an elastically formable disk (11), borne by an insertion part (12) and which seals off the one inlet or outlet channel (5 or 6) at a predetermined point that both on the insertion part (12) of the insert (10) and the other end of the shell (21) a fastening and/or sealing ring (24) is positioned which is held each time at the connection flanges (25) for the medium.
  4. Plate-type heat exchangers according to one of the above claims, characterized in that the sealing point of the insert (10) is planned about 1/3 to 2/3, preferably about 1/2 of the positioning height of the sealing point of the insert (20).
  5. Process for the production of a plate-type heat exchanger, especially oil cooler, in whose inlet and outlet channels inserts for the baffling of flow are mounted according to the above claims, characterized in that the insert (10) for the one inlet or outlet channel (5) and the insert (20) for the other inlet or outlet channel (6) is mounted in one work step as a uniform component (50) after the joining of the individual heat-exchanger plates (2) of the plate-type heat exchanger (1) by means of metallic bond and after that the connection part (30) of the component (50) connecting the inserts (10; 20) is removed.
  6. Process for the production of a plate-type heat exchanger according to claim 5, characterized in that the connection part (30) is detached at the predetermined breaking points (32) from the inserts (10; 20).
  7. Process for the production of a plate-type heat exchanger according to claims 5 and 6, characterized in that the inserts (10; 20) are clamped into or mounted in the channels (5; 6).
EP96108211A 1995-06-28 1996-05-23 Plate-like heat exchanger, more in particularly oil cooler Expired - Lifetime EP0751364B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19523475 1995-06-28
DE19523475A DE19523475C1 (en) 1995-06-28 1995-06-28 Plate heat exchangers, especially oil coolers and manufacturing processes

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EP0751364A2 EP0751364A2 (en) 1997-01-02
EP0751364A3 EP0751364A3 (en) 1997-06-04
EP0751364B1 true EP0751364B1 (en) 1999-04-14

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1055896A2 (en) 1999-05-22 2000-11-29 Modine Manufacturing Company Oil cooler
DE102013109153A1 (en) 2013-08-23 2015-02-26 Benteler Automobiltechnik Gmbh Extruded automotive heat exchanger
DE102013109156A1 (en) 2013-08-23 2015-02-26 Benteler Automobiltechnik Gmbh Extruded automotive heat exchanger

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DE10005889A1 (en) * 2000-02-10 2001-08-16 Mann & Hummel Filter Liquid cooler system
DE10130369A1 (en) * 2001-06-23 2003-01-02 Behr Gmbh & Co Device for cooling a vehicle device, in particular battery or fuel cell
DE102005054728A1 (en) * 2005-11-17 2007-05-24 Behr Gmbh & Co. Kg Stacked plate heat exchangers, in particular oil coolers for motor vehicles
SE532489C2 (en) 2007-02-26 2010-02-02 Alfa Laval Corp Ab plate heat exchangers
ITBO20080004U1 (en) * 2008-01-10 2009-07-11 Irsap Spa FLOW DIVERTER FOR COLLETORS
EP2309219A1 (en) * 2009-10-02 2011-04-13 Hermann Isenmann Device for influencing the temperature of a liquid medium
DE102011008653A1 (en) 2011-01-14 2012-07-19 Behr Gmbh & Co. Kg Heat exchanger
DE102011081886A1 (en) 2011-08-31 2013-02-28 Behr Gmbh & Co. Kg Heat exchanger
EP3303972B1 (en) * 2015-05-22 2021-03-17 Procesa OY Plate heat exchanger with an arrangement for keeping said plate heat exchanger clean in cooling of gas including impurities
EP3819580B1 (en) * 2019-11-06 2022-08-31 Valeo Autosystemy SP. Z.O.O. A heat exchanger

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DE2306426A1 (en) * 1973-02-09 1974-08-15 Modine Mfg Co HEAT EXCHANGER
US4303124A (en) * 1979-06-04 1981-12-01 The A.P.V. Company Limited Plate heat exchanger
DE3020557C2 (en) * 1980-05-30 1984-04-26 Daimler-Benz Ag, 7000 Stuttgart Cross-flow plate heat exchangers as oil coolers for internal combustion engines, in particular for motor vehicles
DE3536316A1 (en) * 1985-10-11 1987-04-16 Sueddeutsche Kuehler Behr Laminated oil cooler
DE3824074A1 (en) * 1988-07-15 1990-01-18 Laengerer & Reich Kuehler Oil cooler

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1055896A2 (en) 1999-05-22 2000-11-29 Modine Manufacturing Company Oil cooler
DE102013109153A1 (en) 2013-08-23 2015-02-26 Benteler Automobiltechnik Gmbh Extruded automotive heat exchanger
DE102013109156A1 (en) 2013-08-23 2015-02-26 Benteler Automobiltechnik Gmbh Extruded automotive heat exchanger

Also Published As

Publication number Publication date
DE59601643D1 (en) 1999-05-20
EP0751364A3 (en) 1997-06-04
DE19523475C1 (en) 1996-11-28
EP0751364A2 (en) 1997-01-02

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