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EP1452816A2 - Plate heat exchanger - Google Patents

Plate heat exchanger Download PDF

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Publication number
EP1452816A2
EP1452816A2 EP04000568A EP04000568A EP1452816A2 EP 1452816 A2 EP1452816 A2 EP 1452816A2 EP 04000568 A EP04000568 A EP 04000568A EP 04000568 A EP04000568 A EP 04000568A EP 1452816 A2 EP1452816 A2 EP 1452816A2
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
plate heat
plate
inlet
exchanger according
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
EP04000568A
Other languages
German (de)
French (fr)
Other versions
EP1452816A3 (en
EP1452816B1 (en
Inventor
Rainer Dipl.-Ing.(FH) Glück
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
Modine Manufacturing Co
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 Modine Manufacturing Co filed Critical Modine Manufacturing Co
Publication of EP1452816A2 publication Critical patent/EP1452816A2/en
Publication of EP1452816A3 publication Critical patent/EP1452816A3/en
Application granted granted Critical
Publication of EP1452816B1 publication Critical patent/EP1452816B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • 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
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/0246—Arrangements for connecting header boxes with flow lines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0049—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for lubricants, e.g. oil coolers
    • 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
    • F28F9/007—Auxiliary supports for elements
    • F28F9/0075—Supports for plates or plate assemblies

Definitions

  • the invention relates to a plate heat exchanger with the features from the preamble of claim 1.
  • the plate heat exchanger described in the preamble is known from international patent application WO 98/59208.
  • the planes of the inlet cross section and the outlet cross section are parallel to the plane of the cover plate in this known connecting piece. As a result, there is no angle between the two cross-sectional planes, or its number of angular degrees is zero.
  • it is difficult to connect a connecting line made of metal to the connecting piece without losing the compactness of the arrangement.
  • compact arrangements often have to be made because the installation space offered, for example, in the engine compartment of a motor vehicle is very limited.
  • the "case-less" plate heat exchanger known from EP 893 667 B1 which also belongs to the type of plate heat exchanger mentioned here, has inlet or outlet connections arranged on the cover plate, which protrude perpendicularly to the body of the plate heat exchanger. In other words, there is a right angle between the plane of the inlet cross section and the plane of the outlet cross section of the connecting piece.
  • the object of the invention is to expand the possible uses of housing-free plate heat exchangers.
  • a plate heat exchanger according to the preamble of claim 1 according to the invention by its characterizing features. Because the inlet cross-section and the outlet cross-section of the connecting piece are arranged at an acute angle to each other and a line end opening into the inlet or outlet cross-section runs at least partially above the cover plate, the possible uses of such plate heat exchangers have been improved or expanded, because they can now also be used in very small installation spaces can be installed. If there are several such connecting pieces, a corresponding line end is assigned to each connecting piece. In this case, by definition, acute angles should include those angles whose number of degrees is greater than 0 and less than 90 °, the larger angle being able to be as large as is possible with the technical means of deep-drawing the plate.
  • the invention is an angled connecting piece, which at first glance may seem very common.
  • this connecting piece is made from an approximately flat plate, usually from the cover plate of the plate heat exchanger, by deep drawing, which poses some manufacturing problems.
  • the expert would rather resort to elbow connectors and attach and solder them as an individual part on the cover plate, which is a disadvantage.
  • the applicant agrees with this view as long as she is not aware of such an elbow connector drawn from a plate in connection with plate heat exchangers.
  • the plate heat exchanger has additional features which are specified in the subclaims and which can be expected to have additional advantageous effects.
  • the auxiliary bearing provided between the line end and the cover plate which is very advantageous for certain spatial installation constraints, leads to a very stable fastening of a line to the plate heat exchanger, which is particularly suitable for use in motor compartments of motor vehicles.
  • the plate heat exchanger has a vent for the cooling circuit to which it is connected. This is advantageous if the installation location of the plate heat exchanger is provided at a geodetically located point of the cooling circuit. Such a vent on the plate heat exchanger seems to be easier and less expensive to implement (but equally effective) than, for example, a vent valve which is arranged in a pipeline. Further features and advantages of the invention result from the following description of an exemplary embodiment. Fig.
  • FIG. 1 shows a perspective view of the plate heat exchanger and Fig. 2 shows a plan view of the same.
  • FIG. 3 shows the section AA drawn in FIG. 2 and
  • FIG. 4 shows the section BB from FIG. 2.
  • the plate heat exchanger shown is an oil cooler which is used in a motor vehicle to cool motor oil by means of the Coolant of the motor vehicle engine circulating in the cooling circuit is used. (Not shown)
  • connection piece 12 formed from the cover plate 10 and the line end 15 are connected to an inlet duct 5
  • the plane provided with the reference symbol 13 is a plane of the inlet cross section
  • with the reference symbol 14 is a plane of the outlet cross section which is on the Level of the cover plate 10 is, or parallel to it.
  • the inlet cross section 13 becomes the outlet cross section 14 , or vice versa.
  • a plurality of such connection pieces 12 with line ends 15 can also be present on a plate heat exchanger, although only a single one has been illustrated in the figures. In Fig.
  • the inlet channel 5 intended in the case shown for the cooling liquid was drawn in section.
  • the associated outlet channel 7 was shown in FIG. 2 only as a circle with dashed lines. The same applies to the inlet channel 6 and the outlet channel 8 , which are intended, for example, for the engine oil.
  • the inlet and outlet channels 5 , 6 , 7 , 8 pass vertically through the stack of heat exchanger plates 1 and 2 , for which purpose corresponding openings are present in the heat exchanger plates 1 and 2 .
  • Flow channels 3 and 4 are located between the heat exchanger plates 1 , 2 . As shown in FIG.
  • the inlet channel 5 (also the outlet channel 6, not shown) is connected to the flow channels 4 , so that the cooling liquid can flow from the inlet channel 5 via the flow channels 4 to the outlet channel 6 .
  • the flow channels 3 for the engine oil which are connected in the same way to the inlet channel 7 and the outlet channel 8 .
  • the connecting piece 12 was formed from the cover plate 10 in several production stages by deep drawing, the connecting opening 30 being formed in the connecting piece 12 in the last step.
  • the angle 20 between the plane of the inlet cross section 13 and the plane of the outlet cross section 14 is approximately 50 °.
  • the line end 15 was inserted into the mentioned connection opening 30 of the connection piece 12 .
  • the line end 15 surrounds the connection opening 30 from the outside, which then has a flange attachment.
  • the line end 15 has a bead, which is a stop to facilitate the insertion and subsequent sealing soldering.
  • the line end 15 also has a slight bend, so that it can extend in the immediate vicinity above the cover plate 10 , as a result of which the plate heat exchanger is generally very compact and space-saving, in particular has a low overall height, as indicated on the left edge of FIG. 3 has been.
  • the bend of the line end 15 can be dispensed with if the angle 20 between the entry plane 13 and the exit plane 14 approaches a right angle.
  • the line end 15 is arranged in such designs, not shown, in which a connecting piece 12 is located on the base plate 9 .
  • the auxiliary bearing 40 has a head 41 on which the line end 15 is fastened and a foot 42 with which it is soldered to the cover plate 10 .
  • there is a slight depression or the like on the foot 42 which cooperates with a corresponding elevation (knob) on the cover plate 10 .
  • the auxiliary bearing 40 can also be formed from the cover plate 10 by means of deep drawing and therefore does not represent an individual part. (not shown) However, as shown in FIG.
  • the connecting piece 12 is located directly above the inlet channel 5 or its vertical 25 .
  • the connecting piece 12 is arranged offset to the vertical 25 , but of course remains in hydraulic connection with the inlet channel 5 .
  • a vent 50 for the coolant circuit is located on the cover plate 10 .
  • the vent 50 has a sealing screw 51 . After loosening the sealing screw 51 , gas inclusions contained in the cooling liquid can escape, since the ventilation 50 is connected to the upper flow channel 4 for the cooling liquid via a bore or the like.
  • the plate heat exchanger has been mounted or soldered on a fastening plate 45 in order to fasten it to a motor housing, for example, by means of screws or similar fastening means, not shown, which are inserted through holes 46 .

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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

Plate heat exchanger comprises a stack of heat exchanger plates (1, 2), flow channels (3, 4) between the heat exchanger plates for at least two separate media, inlet channels (5) and outlet channels for the media, and a base plate and a top plate (10). A connecting sleeve (12) formed preferably on the top plate communicates with an inlet or outlet channel and has an inlet cross-section (13) and an outlet cross-section (14). The connecting sleeve is connected to an inlet or outlet line (15). A plane of the inlet cross-section and a plane of the outlet cross-section of the connecting sleeve are arranged at an acute angle (20) to each other. The end of the line opening into the inlet or outlet cross-section runs at least partly above the top plate or below the base plate. Preferred Features: The acute angle is preferably 10-70[deg].

Description

Die Erfindung betrifft einen Plattenwärmetauscher mit den Merkmalen aus dem Oberbegriff des Anspruchs 1.
Der im Oberbegriff beschriebene Plattenwärmetauscher ist aus der internationalen Patentanmeldung WO 98/59208 bekannt. Die Ebenen des Eintrittsquerschnitts und des Austrittsquerschnitts liegen bei diesem bekannten Anschlussstutzen parallel zur Ebene der Deckplatte. Ein Winkel zwischen den beiden Querschnittsebenen ist demzufolge nicht vorhanden, bzw. seine Winkelgradzahl beträgt null. Mit dem bekannten Plattenwärmetauscher ist es schwierig, eine Anschlussleitung aus Metall an dem Anschlussstutzen anzuschließen, ohne die Kompaktheit der Anordnung einzubüßen. Kompakte Anordnungen müssen jedoch oftmals getroffen werden, weil der beispielsweise im Motorraum eines Kraftfahrzeugs angebotene Einbauraum sehr begrenzt ist.
Der aus dem EP 893 667 B1 bekannte "gehäuselose" Plattenwärmetauscher, der ebenfalls dem hier angesprochenen Typ von Plattenwärmetauschern angehört, hat an der Deckplatte angeordnete Eintritts - bzw. Austrittsstutzen, die senkrecht zum Körper des Plattenwärmetauschers abstehen. Mit anderen Worten, zwischen der Ebene des Eintrittsquerschnitt und der Ebene des Austrittsquerschnitt des Anschlussstutzens liegt ein rechter Winkel.
Die Aufgabe der Erfindung besteht in der Erweiterung der Einsatzmöglichkeiten von gehäuselosen Plattenwärmetauschern.The invention relates to a plate heat exchanger with the features from the preamble of claim 1.
The plate heat exchanger described in the preamble is known from international patent application WO 98/59208. The planes of the inlet cross section and the outlet cross section are parallel to the plane of the cover plate in this known connecting piece. As a result, there is no angle between the two cross-sectional planes, or its number of angular degrees is zero. With the known plate heat exchanger, it is difficult to connect a connecting line made of metal to the connecting piece without losing the compactness of the arrangement. However, compact arrangements often have to be made because the installation space offered, for example, in the engine compartment of a motor vehicle is very limited.
The "case-less" plate heat exchanger known from EP 893 667 B1, which also belongs to the type of plate heat exchanger mentioned here, has inlet or outlet connections arranged on the cover plate, which protrude perpendicularly to the body of the plate heat exchanger. In other words, there is a right angle between the plane of the inlet cross section and the plane of the outlet cross section of the connecting piece.
The object of the invention is to expand the possible uses of housing-free plate heat exchangers.

Diese Aufgabe wird bei einem dem Oberbegriff des Anspruchs 1 entsprechenden Plattenwärmetauscher erfindungsgemäß durch seine kennzeichnenden Merkmale gelöst.
Weil der Eintrittsquerschnitt und der Austrittsquerschnitt des Anschlussstutzens in einem spitzen Winkel zueinander angeordnet sind und ein in dem Eintritts - oder Austrittsquerschnitt mündendes Leitungsende zumindest teilweise oberhalb zur Deckplatte verläuft, sind die Einsatzmöglichkeiten solcher Plattenwärmetauscher verbessert bzw. erweitert worden, denn sie können jetzt auch in sehr kleinen Einbauräumen eingebaut werden. Bei mehreren derartigen Anschlussstutzen ist jedem Anschlussstutzen ein entsprechendes Leitungsende zugeordnet. Spitze Winkel sollen per Definition in diesem Falle solche Winkel umfassen, deren Gradzahl größer als 0 und kleiner als 90° ist, wobei der größere Winkel so groß sein kann, wie es mit fertigungstechnischen Mitteln des Tiefziehens der Platte machbar ist. Bei der Erfindung handelt es sich - mit anderen Worten - um einen abgewinkelten Anschlussstutzen, der auf den ersten Blick als sehr gewöhnlich erscheinen mag. Es sollte jedoch (bei näherer Betrachtung) bedacht werden, dass dieser Anschlussstutzen aus einer etwa ebenen Platte, in aller Regel aus der Deckplatte des Plattenwärmetauschers, mittels Tiefziehen hergestellt ist, was einige fertigungstechnische Probleme aufwirft. Nach Meinung des Erfinders würde der Fachmann in solchen Fällen eher zu Winkelstutzen greifen und diese als Einzelteil auf der Deckplatte ansetzen und verlöten, was von Nachteil sei. Dieser Auffassung schließt sich die Anmelderin an, solange ihr kein derartiger aus einer Platte gezogener Winkelstutzen im Zusammenhang mit Plattenwärmetauschern bekannt ist.
Ferner weist der Plattenwärmetauscher zusätzliche Merkmale auf, die in den Unteransprüchen angegeben sind und die zusätzliche vorteilhafte Wirkungen erwarten lassen. Das vorgesehene und für bestimmte räumliche Einbauzwänge sehr vorteilhafte Hilfslager zwischen dem Leitungsende und der Deckplatte führt zu einer sehr stabilen und somit für den Einsatz in Motorräumen von Kraftfahrzeugen besonders geeigneten Befestigung einer Leitung am Plattenwärmetauscher. Insbesondere sei darauf hingewiesen, dass der Plattenwärmetauscher über eine Entlüftung für den Kühlkreislauf verfügt, an dem er angeschlossen ist. Dies ist dann vorteilhaft, wenn der Einbauort des Plattenwärmetauschers an einem geodätisch obenliegenden Punkt des Kühlkreislaufs vorgesehen ist. Eine solche Entlüftung am Plattenwärmetauscher scheint einfacher und kostengünstiger realisierbar (aber in gleicher Weise wirksam) zu sein, als beispielsweise ein Entlüftungsventil, das in einem Leitungsstrang angeordnet ist.
Weitere Merkmale und Vorteile der Erfindung ergeben sich aus der nachfolgenden Beschreibung eines Ausführungsbeispiels.
Die Fig. 1 zeigt eine perspektivische Ansicht des Plattenwärmetauscher und die Fig. 2 zeigt eine Draufsicht auf denselben. Die Fig. 3 zeigt den in der Fig. 2 eingezeichneten Schnitt A-A und die Fig. 4 zeigt den Schnitt B-B aus der Fig. 2. Bei dem gezeigten Plattenwärmetauscher handelt es sich um einen Ölkühler, der in einem Kraftfahrzeug zur Kühlung von Motorenöl mittels der im Kühlkreislauf zirkulierenden Kühlflüssigkeit des Kraftfahrzeugmotors verwendet wird. (nicht gezeigt) This object is achieved in a plate heat exchanger according to the preamble of claim 1 according to the invention by its characterizing features.
Because the inlet cross-section and the outlet cross-section of the connecting piece are arranged at an acute angle to each other and a line end opening into the inlet or outlet cross-section runs at least partially above the cover plate, the possible uses of such plate heat exchangers have been improved or expanded, because they can now also be used in very small installation spaces can be installed. If there are several such connecting pieces, a corresponding line end is assigned to each connecting piece. In this case, by definition, acute angles should include those angles whose number of degrees is greater than 0 and less than 90 °, the larger angle being able to be as large as is possible with the technical means of deep-drawing the plate. In other words, the invention is an angled connecting piece, which at first glance may seem very common. However, it should be considered (on closer inspection) that this connecting piece is made from an approximately flat plate, usually from the cover plate of the plate heat exchanger, by deep drawing, which poses some manufacturing problems. In the inventor's opinion, in such cases the expert would rather resort to elbow connectors and attach and solder them as an individual part on the cover plate, which is a disadvantage. The applicant agrees with this view as long as she is not aware of such an elbow connector drawn from a plate in connection with plate heat exchangers.
Furthermore, the plate heat exchanger has additional features which are specified in the subclaims and which can be expected to have additional advantageous effects. The auxiliary bearing provided between the line end and the cover plate, which is very advantageous for certain spatial installation constraints, leads to a very stable fastening of a line to the plate heat exchanger, which is particularly suitable for use in motor compartments of motor vehicles. In particular, it should be noted that the plate heat exchanger has a vent for the cooling circuit to which it is connected. This is advantageous if the installation location of the plate heat exchanger is provided at a geodetically located point of the cooling circuit. Such a vent on the plate heat exchanger seems to be easier and less expensive to implement (but equally effective) than, for example, a vent valve which is arranged in a pipeline.
Further features and advantages of the invention result from the following description of an exemplary embodiment.
Fig. 1 shows a perspective view of the plate heat exchanger and Fig. 2 shows a plan view of the same. FIG. 3 shows the section AA drawn in FIG. 2 and FIG. 4 shows the section BB from FIG. 2. The plate heat exchanger shown is an oil cooler which is used in a motor vehicle to cool motor oil by means of the Coolant of the motor vehicle engine circulating in the cooling circuit is used. (Not shown)

Aus der Fig. 3 geht das Wesentliche dieses Vorschlages am deutlichsten hervor. Da in dem gezeigten Ausführungsbeispiel der aus der Deckplatte 10 geformte Anschlussstutzen 12 und das Leitungsende 15 an einem Eintrittskanal 5 angeschlossen ist, ist die mit dem Bezugszeichen 13 versehene Ebene, eine Ebene des Eintrittsquerschnitts und mit dem Bezugszeichen 14 eine Ebene des Austrittsquerschnitts, die auf der Ebene der Deckplatte 10 liegt, bzw. parallel dazu. Es ist klar, dass in solchen Fällen, in denen der Anschlussstutzen 12 und das Leitungsende 15 an einem Austrittskanal 7, 8 angeschlossen sind, der Eintrittsquerschnitt 13 zum Austrittsquerschnitt 14 wird, oder umgekehrt. Es ist ferner klar, dass auch mehrere solcher Anschlussstutzen 12 mit Leitungsenden 15 an einem Plattenwärmetauscher vorhanden sein können, obwohl nur ein einziger in den Figuren abgebildet wurde. In der Fig. 3 wurde der in dem gezeigten Fall für die Kühlflüssigkeit gedachte Eintrittskanal 5 im Schnitt gezeichnet. Der zugehörige Austrittskanal 7 wurde in der Fig. 2 lediglich als Kreis mit gestrichelter Linienführung abgebildet. Gleiches trifft auf den Eintrittskanal 6 und den Austrittskanal 8 zu, die beispielsweise für das Motorenöl gedacht sind. Die Eintritts - und Austrittskanäle 5, 6, 7, 8 gehen vertikal durch den Stapel aus Wärmetauscherplatten 1 und 2 hindurch, wozu in den Wärmetauscherplatten 1 und 2 entsprechende Öffnungen vorhanden sind. Zwischen den Wärmetauscherplatten 1, 2 befinden sich Strömungskanäle 3 und 4. Wie die Fig. 3 zeigt, ist der Eintrittskanal 5 (auch der nicht gezeigte Austrittskanal 6) mit den Strömungskanälen 4 verbunden, so dass die Kühlflüssigkeit vom Eintrittskanal 5 über die Strömungskanäle 4 zum Austrittskanal 6 strömen kann. Dazwischen befinden sich die Strömungskanäle 3 für das Motorenöl, die in gleicher Weise mit dem Eintrittskanal 7 und dem Austrittskanal 8 verbunden sind. Der Anschlussstutzen 12 wurde mittels Tiefziehen in mehreren Fertigungsstufen aus der Deckplatte 10 geformt, wobei die Anschlussöffnung 30 im Anschlussstutzen 12 in der letzten Stufe ausgebildet wurde. Der Winkel 20 zwischen der Ebene des Eintrittsquerschnitts 13 und der Ebene des Austrittsquerschnitts 14 beträgt etwa 50°. In die erwähnte Anschlussöffnung 30 des Anschlussstutzens 12 wurde das Leitungsende 15 im gezeigten Ausführungsbeispiel eingesetzt. In nicht gezeigten Ausführungen umgreift das Leitungsende 15 die Anschlussöffnung 30 von außen, die dann einen Flanschansatz aufweist. Das Leitungsende 15 besitzt einen Wulst, der einen Anschlag darstellt, um das Einsetzen und spätere Dichtlöten zu erleichtern. Das Leitungsende 15 weist ebenfalls eine geringe Biegung auf, so dass sich dasselbe in unmittelbarer Nähe oberhalb der Deckplatte 10 erstrecken kann, wodurch der Plattenwärmetauscher insgesamt sehr kompakt und raumsparend ausgebildet ist, insbesondere eine geringe Bauhöhe besitzt, wie am linken Rand der Fig. 3 angezeigt wurde. Auf die Biegung des Leitungsendes 15 kann verzichtet werden, wenn sich der Winkel 20 zwischen der Eintrittsebene 13 und der Austrittsebene 14 einem rechten Winkel nähert. Jedoch scheint die Ausbildung eines 90°- Winkels fertigungstechnisch etwas aufwendiger zu sein, so dass die gezeigte Ausbildung als bevorzugt bezeichnet werden kann. In einem solchen Anwendungsfall wie dem gezeigten, in dem sich das Leitungsende 15 mit einem minimalen Abstand 16 quer über die Deckplatte 10 erstreckt, ist es, insbesondere für Plattenwärmetauscher, die in Kraftfahrzeugen zum Einsatz kommen, vorteilhaft, wenn das Leitungsende 15 mittels eines Hilfslagers 40 (in Fig. 3 nicht gezeichnet) auf der Deckplatte 10 abgestützt wird, weil damit den im Betrieb auftretenden Vibrationen besser entsprochen werden kann.
Es gibt jedoch andere Ausführungen, bei denen das Leitungsende 15 zwar auch zumindest teilweise oberhalb der Deckplatte 10 angeordnet ist, aber kurz nach dem Anschlussstutzen 12 vom Plattenwärmetauscher wegführt, so dass dort kein Hilfslager 40 dieser Art vorzusehen ist. Zumindest teilweise unterhalb der Grundplatte 9 ist das Leitungsende 15 in solchen nicht gezeigten Ausführungen angeordnet, in denen sich ein Anschlussstutzen 12 an der Grundplatte 9 befindet.
Gemäß Fig. 1 besitzt das Hilfslager 40 einen Kopf 41, auf dem das Leitungsende 15 befestigt ist und einen Fuß 42, mit dem es auf der Deckplatte 10 angelötet wird. Um das Positionieren des Hilfslagers 40 auf der Deckplatte 10 zu erleichtern, befindet sich am Fuß 42 eine geringfügige Vertiefung oder dergleichen, die mit einer entsprechenden Erhebung (Noppe) auf der Deckplatte 10 zusammenwirkt. (nicht gezeigt) Das Hilfslager 40 kann auch mittels Tiefziehen aus der Deckplatte 10 geformt werden und stellt dann also kein Einzelteil dar. (nicht gezeigt) Wie die Fig. 3 jedoch zeigt, befindet sich der Anschlussstutzen 12 unmittelbar über dem Eintrittskanal 5 bzw. auf dessen Vertikalen 25. Es gibt weitere nicht gezeigte Ausführungen, in denen der Anschlussstutzen 12 zur Vertikalen 25 versetzt angeordnet ist, aber selbstverständlich in hydraulischer Verbindung mit dem Eintrittskanal 5 bleibt.
Auf der Deckplatte 10 befindet sich eine Entlüftung 50 für den Kühlflüssigkeitskreislauf. Die Entlüftung 50 weist eine Dichtschraube 51 auf. Nach dem Lösen der Dichtschraube 51 können in der Kühlflüssigkeit enthaltene Gaseinschlüsse entweichen, da die Entlüftung 50 über eine Bohrung oder dergleichen mit dem oberen Strömungskanal 4 für die Kühlflüssigkeit verbunden ist.
Der Plattenwärmetauscher ist auf einer Befestigungsplatte 45 montiert bzw. aufgelötet worden, um ihn mittels nicht gezeigter Schrauben oder ähnlicher Befestigungsmittel, die durch Löcher 46 gesteckt werden, beispielsweise an einem Motorengehäuse zu befestigen.3 shows the essence of this proposal most clearly. Since, in the exemplary embodiment shown, the connecting piece 12 formed from the cover plate 10 and the line end 15 are connected to an inlet duct 5 , the plane provided with the reference symbol 13 is a plane of the inlet cross section and with the reference symbol 14 is a plane of the outlet cross section which is on the Level of the cover plate 10 is, or parallel to it. It is clear that in cases in which the connecting piece 12 and the line end 15 are connected to an outlet channel 7, 8 , the inlet cross section 13 becomes the outlet cross section 14 , or vice versa. It is also clear that a plurality of such connection pieces 12 with line ends 15 can also be present on a plate heat exchanger, although only a single one has been illustrated in the figures. In Fig. 3, the inlet channel 5 intended in the case shown for the cooling liquid was drawn in section. The associated outlet channel 7 was shown in FIG. 2 only as a circle with dashed lines. The same applies to the inlet channel 6 and the outlet channel 8 , which are intended, for example, for the engine oil. The inlet and outlet channels 5 , 6 , 7 , 8 pass vertically through the stack of heat exchanger plates 1 and 2 , for which purpose corresponding openings are present in the heat exchanger plates 1 and 2 . Flow channels 3 and 4 are located between the heat exchanger plates 1 , 2 . As shown in FIG. 3, the inlet channel 5 (also the outlet channel 6, not shown) is connected to the flow channels 4 , so that the cooling liquid can flow from the inlet channel 5 via the flow channels 4 to the outlet channel 6 . In between are the flow channels 3 for the engine oil, which are connected in the same way to the inlet channel 7 and the outlet channel 8 . The connecting piece 12 was formed from the cover plate 10 in several production stages by deep drawing, the connecting opening 30 being formed in the connecting piece 12 in the last step. The angle 20 between the plane of the inlet cross section 13 and the plane of the outlet cross section 14 is approximately 50 °. In the exemplary embodiment shown, the line end 15 was inserted into the mentioned connection opening 30 of the connection piece 12 . In embodiments not shown, the line end 15 surrounds the connection opening 30 from the outside, which then has a flange attachment. The line end 15 has a bead, which is a stop to facilitate the insertion and subsequent sealing soldering. The line end 15 also has a slight bend, so that it can extend in the immediate vicinity above the cover plate 10 , as a result of which the plate heat exchanger is generally very compact and space-saving, in particular has a low overall height, as indicated on the left edge of FIG. 3 has been. The bend of the line end 15 can be dispensed with if the angle 20 between the entry plane 13 and the exit plane 14 approaches a right angle. However, the formation of a 90 ° angle seems to be somewhat more complex in terms of production technology, so that the formation shown can be designated as preferred. In such an application as that shown, in which the line end 15 extends across the cover plate 10 with a minimum distance 16 , it is advantageous, in particular for plate heat exchangers that are used in motor vehicles, if the line end 15 is provided by means of an auxiliary bearing 40 (Not shown in Fig. 3) is supported on the cover plate 10 , because it can better meet the vibrations occurring during operation.
However, there are other versions in which the line end 15 is also at least partially arranged above the cover plate 10 , but leads away from the plate heat exchanger shortly after the connecting piece 12 , so that no auxiliary bearing 40 of this type is to be provided there. At least partially below the base plate 9 , the line end 15 is arranged in such designs, not shown, in which a connecting piece 12 is located on the base plate 9 .
1, the auxiliary bearing 40 has a head 41 on which the line end 15 is fastened and a foot 42 with which it is soldered to the cover plate 10 . In order to facilitate the positioning of the auxiliary bearing 40 on the cover plate 10 , there is a slight depression or the like on the foot 42 , which cooperates with a corresponding elevation (knob) on the cover plate 10 . (not shown) The auxiliary bearing 40 can also be formed from the cover plate 10 by means of deep drawing and therefore does not represent an individual part. (not shown) However, as shown in FIG. 3, the connecting piece 12 is located directly above the inlet channel 5 or its vertical 25 . There are further designs, not shown, in which the connecting piece 12 is arranged offset to the vertical 25 , but of course remains in hydraulic connection with the inlet channel 5 .
A vent 50 for the coolant circuit is located on the cover plate 10 . The vent 50 has a sealing screw 51 . After loosening the sealing screw 51 , gas inclusions contained in the cooling liquid can escape, since the ventilation 50 is connected to the upper flow channel 4 for the cooling liquid via a bore or the like.
The plate heat exchanger has been mounted or soldered on a fastening plate 45 in order to fasten it to a motor housing, for example, by means of screws or similar fastening means, not shown, which are inserted through holes 46 .

Claims (13)

Plattenwärmetauscher mit einem Stapel aus Wärmetauscherplatten (1, 2) und zwischen den Wärmetauscherplatten (1, 2) angeordneten Strömungskanälen (3, 4) für mindestens zwei getrennt geführte Medien und mit den Stapel durchsetzenden Eintrittskanälen (5, 6) und Austrittskanälen (7, 8) für die Medien, sowie mit einer Grundplatte (9) und einer Deckplatte (10), die den Stapel aus Wärmetauscherplatten (1, 2) oben und unten abschließen, wobei vorzugsweise an der Deckplatte ein aus derselben gezogener Anschlussstutzen (12) angeordnet ist, der mit einem Eintritts - bzw. Austrittskanal (5, 6, 7, 8) kommuniziert und der einen Eintrittsquerschnitt (13) und einen Austrittsquerschnitt (14) aufweist und zum Anschluss einer Zu - bzw. Abführleitung (15) dient,
dadurch gekennzeichnet, dass
eine Ebene des Eintrittsquerschnitts (13) und eine Ebene des Austrittsquerschnitts (14) des mindestens einen Anschlussstutzens (12) in einem spitzen Winkel (20) zueinander angeordnet sind und ein in dem Eintritts - oder Austrittsquerschnitt (13, 14) mündendes Leitungsende (15) zumindest teilweise etwa oberhalb der Deckplatte (10) oder unterhalb der Grundplatte (9) verläuft.Plate heat exchanger with a stack of heat exchanger plates (1, 2) and flow channels (3, 4) arranged between the heat exchanger plates (1, 2) for at least two separately guided media and with inlet channels (5, 6) and outlet channels (7, 8) passing through the stack ) for the media, as well as with a base plate (9) and a cover plate (10), which close off the stack of heat exchanger plates (1, 2) at the top and bottom, a connection piece (12) pulled from the latter being preferably arranged on the cover plate, which communicates with an inlet or outlet channel (5, 6, 7, 8) and which has an inlet cross section (13) and an outlet cross section (14) and is used to connect a feed or discharge line (15),
characterized in that
a plane of the inlet cross section (13) and a plane of the outlet cross section (14) of the at least one connecting piece (12) are arranged at an acute angle (20) to one another and a line end (15) opening into the inlet or outlet cross section (13, 14) extends at least partially above the cover plate (10) or below the base plate (9). Plattenwärmetauscher nach Anspruch 1, dadurch gekennzeichnet, dass der spitze Winkel (20) eine Winkelgradzahl von vorzugsweise etwa zwischen 10° und 70° aufweist.Plate heat exchanger according to claim 1, characterized in that the acute angle (20) has an angular degree of preferably approximately between 10 ° and 70 °. Plattenwärmetauscher nach den Ansprüchen 1 oder 2, dadurch gekennzeichnet, dass das Leitungsende (15) vorzugsweise ein Zwischenstück ist und in die Öffnung (30) des Anschlussstutzens (12) eingesetzt ist oder diese Öffnung (30) außen umgreift.Plate heat exchanger according to claims 1 or 2, characterized in that the line end (15) is preferably an intermediate piece and is inserted into the opening (30) of the connecting piece (12) or surrounds this opening (30) on the outside. Plattenwärmetauscher nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass das Leitungsende (15) mit einem minimalen Abstand (16) etwa parallel zur Deckplatte (10) angeordnet ist und diese ganz oder teilweise überquert.Plate heat exchanger according to one of the preceding claims, characterized in that the line end (15) is arranged at a minimum distance (16) approximately parallel to the cover plate (10) and crosses it in whole or in part. Plattenwärmetauscher nach einem der vorstehenden Ansprüche, insbesondere nach Anspruch 4, dadurch gekennzeichnet, dass zwischen der Deckplatte (10) und dem Leitungsende (15) ein Hilfslager (40) angeordnet ist. Plate heat exchanger according to one of the preceding claims, in particular according to claim 4, characterized in that an auxiliary bearing (40) is arranged between the cover plate (10) and the line end (15). Plattenwärmetauscher nach Anspruch 5, dadurch gekennzeichnet, dass das Hilfslager (40) einen Fuß (41) und einen Kopf (42) aufweist.Plate heat exchanger according to claim 5, characterized in that the auxiliary bearing (40) has a foot (41) and a head (42). Plattenwärmetauscher nach den Ansprüchen 5 und 6, dadurch gekennzeichnet, dass die Deckplatte (10) eine Verformung (43a) aufweist, der mit einer Verformung (43b) am Fuß (41) zusammenwirkt, wodurch die Positionierung des Hilfslagers (40) erreichbar ist.Plate heat exchanger according to claims 5 and 6, characterized in that the cover plate (10) has a deformation (43a) which interacts with a deformation (43b) on the foot (41), whereby the positioning of the auxiliary bearing (40) can be achieved. Plattenwärmetauscher nach den Ansprüchen 5, 6 und 7 dadurch gekennnzeichnet, dass das Hilfslager (40) auf der Deckplatte (10) angelötet ist und das Leitungsende (15) auf dem Hilfslager (40) vorzugsweise ebenfalls angelötet ist.Plate heat exchanger according to claims 5, 6 and 7 thereby marked that the auxiliary bearing (40) is soldered to the cover plate (10) and the line end (15) is preferably also soldered to the auxiliary bearing (40). Plattenwärmetauscher nach den Ansprüchen 1 und 5, dadurch gekennzeichnet, dass das Hilfslager (40) mittels partieller Umformung der Deckplatte (10) geformt und somit einstückig mit derselben ausgebildet ist.Plate heat exchanger according to claims 1 and 5, characterized in that the auxiliary bearing (40) is formed by means of partial reshaping of the cover plate (10) and is therefore formed in one piece with the same. Plattenwärmetauscher nach Anspruch 1, dadurch gekennzeichnet, dass eine Entlüftung (50) für einen Kühlkreislauf am Plattenwärmetauscher angeordnet ist, an dem der Plattenwärmetauscher angeschlossen ist.Plate heat exchanger according to claim 1, characterized in that a vent (50) for a cooling circuit is arranged on the plate heat exchanger to which the plate heat exchanger is connected. Plattenwärmetauscher nach Anspruch 10, dadurch gekennzeichnet, dass sich die Entlüftung (50) an der Deckplatte (10) des Plattenwärmetauschers befindet und mit einer Dichtschraube (51) verschlossen ist.Plate heat exchanger according to claim 10, characterized in that the vent (50) is located on the cover plate (10) of the plate heat exchanger and is closed with a sealing screw (51). Plattenwärmetauscher nach Anspruch 1, dadurch gekennzeichnet, dass der Anschlussstutzen (12) auf einer geraden Linie (25) mit einem vertikal durch das Paket der Wärmetauscherplatten (1, 2) hindurchgehenden Eintritts - bzw. Austrittskanal (5, 6, 7, oder 8) angeordnet ist.Plate heat exchanger according to claim 1, characterized in that the connecting piece (12) on a straight line (25) with an inlet or outlet channel (5, 6, 7 or 8) which passes vertically through the packet of heat exchanger plates (1, 2). is arranged. Plattenwärmetauscher nach Anspruch 1, dadurch gekennzeichnet, dass der Anschlussstutzen (12) seitlich versetzt zu einer vertikalen Linie (25) angeordnet ist, auf der sich der Eintritts - bzw. der Austrittskanal (5, 6, 7 oder 8) befindet.Plate heat exchanger according to claim 1, characterized in that the connecting piece (12) is arranged laterally offset to a vertical line (25) on which the inlet and outlet channels (5, 6, 7 or 8) are located.
EP04000568A 2003-02-06 2004-01-14 Plate heat exchanger Expired - Lifetime EP1452816B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10304733 2003-02-06
DE10304733A DE10304733A1 (en) 2003-02-06 2003-02-06 Plate heat exchanger used e.g. as an oil cooler for cooling engine oil in a motor vehicle comprises a connecting sleeve with an inlet and an outlet cross-section having planes arranged at an acute angle to each other

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EP1452816A2 true EP1452816A2 (en) 2004-09-01
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EP1452816B1 EP1452816B1 (en) 2009-03-25

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US10113807B2 (en) 2014-08-16 2018-10-30 Modine Manufacturing Company Indirect-type air cooler
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EP1647796A1 (en) * 2004-10-14 2006-04-19 Modine Manufacturing Company Plate heat exchanger
WO2007073305A1 (en) * 2005-12-22 2007-06-28 Alfa Laval Corporate Ab Means for plate heat exchanger
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EP2154465A3 (en) * 2008-08-11 2013-10-16 MAHLE International GmbH Sheet heat exchangers
EP2402702A1 (en) * 2010-06-30 2012-01-04 Valeo Systemes Thermiques Heat exchanger header cover and heat exchanger including such a header cover
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FR3086381A1 (en) * 2018-09-25 2020-03-27 Valeo Systemes Thermiques ADAPTER FOR COLLECTOR OF A HEAT EXCHANGER
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Also Published As

Publication number Publication date
EP1452816A3 (en) 2007-12-05
DE10304733A1 (en) 2004-08-19
US20040177950A1 (en) 2004-09-16
DE502004009194D1 (en) 2009-05-07
EP1452816B1 (en) 2009-03-25

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