EP0752570A1 - Panel heat exchanger - Google Patents

Panel heat exchanger Download PDF

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Publication number
EP0752570A1
EP0752570A1 EP95110607A EP95110607A EP0752570A1 EP 0752570 A1 EP0752570 A1 EP 0752570A1 EP 95110607 A EP95110607 A EP 95110607A EP 95110607 A EP95110607 A EP 95110607A EP 0752570 A1 EP0752570 A1 EP 0752570A1
Authority
EP
European Patent Office
Prior art keywords
groove
seal
plate
tongues
heat exchanger
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.)
Withdrawn
Application number
EP95110607A
Other languages
German (de)
French (fr)
Inventor
Karl-Heinz Dipl.-Ing. Funke
Gerd-Wolfgang Dipl.-Ing. Sellnau
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.)
Funke Warmeaustauscher GmbH
Original Assignee
Funke Warmeaustauscher 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 Funke Warmeaustauscher GmbH filed Critical Funke Warmeaustauscher GmbH
Priority to EP95110607A priority Critical patent/EP0752570A1/en
Publication of EP0752570A1 publication Critical patent/EP0752570A1/en
Withdrawn legal-status Critical Current

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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
    • F28F3/083—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning capable of being taken apart
    • 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
    • F28F3/10—Arrangements for sealing the margins

Definitions

  • the invention relates to a plate heat exchanger according to the preamble of claim 1.
  • the seals are glued into embossed circumferential grooves or grooves in a complex manner. Replacing the seals is particularly problematic, for which purpose the plate heat exchangers often have to be sent back to the manufacturer.
  • the object of the present invention is to design a plate heat exchanger of the type mentioned at the outset in such a way that a more secure fastening of the seal in a simple groove can be achieved with simpler means.
  • the invention proposes as a solution to provide in the outer region of the heat transfer plates between the groove and the edge of the plate a plurality of spaced, punched out of the plate material on three sides, upright and inclined tongues that press the elastic seal against the opposite groove wall and the groove base. As a result, a secure fit of the seal in the groove can be achieved in a simple manner.
  • the raised and possibly tongue-inclined tongue can engage in a slot formed in the seal, the length and / or width of which is made smaller than the corresponding length and / or width of the tongue. Due to the elastic deformation of the seal when the tongue is pressed into the slot, the slot wall presses firmly against the tongue. The resulting frictional adhesion between the tongue and the sealing slot alone ensures that the seal sits securely in the groove; the additional clamping effect, if any, due to the inclination of the tongue in the direction of the groove, enables an even better fit of the seal in the groove.
  • the tongues are deformed, for example they are of a crescent shape.
  • the deformation of the tongue increases its strength and the frictional adhesion between the tongue and the sealing slot.
  • the drawing shows a heat transfer plate 6 of a plate heat exchanger in the region of a circumferential seal 2, which is not shown in FIGS. 3 and 4.
  • a circumferential groove 3 is formed by stamping.
  • a plurality of tongues 1 which are punched out on three sides from the plate material and are inclined and deformed toward the groove, are arranged along the groove.
  • the tongue 1 inclined towards the groove presses against the sealing material and thus presses the seal 2 firmly against the groove base 7 and the opposite groove wall 8 and into the groove corner 4, cf. Fig. 1.
  • the seal 2 can, as shown in FIGS. 1 and 2 of the drawing, be provided with a slot 5 in which the tongue 1 engages.
  • the length and / or the width of the slot 5 is made smaller than the corresponding length or width of the tongue 1.
  • the clamping effect produced is further improved while at the same time increased frictional adhesion between the tongue 1 and the sealing slot 5.
  • the strength of the tongue 1 against bending due to the deformation is increased.

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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

Heat exchanger in which in the outer region of the plate (6) between the groove (3) and the edge of the plate along the groove are arranged a number of tongues (1). The tongues are inclined towards the groove and press the seal (2) against the base of the groove and the opposite groove wall (4). The tongues can also engage in a slit (5) formed in the seal.

Description

Die Erfindung betrifft einen Plattenwärmeaustauscher gemäß Oberbegriff des Anspruchs 1.The invention relates to a plate heat exchanger according to the preamble of claim 1.

Bei Plattenwärmeaustauschern dieser Art werden die Dichtungen in aufwendiger Weise in geprägte umlaufende Nuten oder Rillen eingeklebt. Besonders problematisch gestaltet sich das Auswechseln der Dichtungen, wozu die Plattenwärmeaustauscher häufig zum Hersteller zurückgeschickt werden müssen.In plate heat exchangers of this type, the seals are glued into embossed circumferential grooves or grooves in a complex manner. Replacing the seals is particularly problematic, for which purpose the plate heat exchangers often have to be sent back to the manufacturer.

Es ist auch schon bekannt, Dichtungen nicht mehr einzukleben, sondern im Dichtungsbereich der einzelnen Wärmeübertragungsplatten speziell geformte umlaufende Nuten auszubilden und komplementär zur Nut ausgebildete spezielle Dichtungen zu verwenden, um so einen ausreichenden Halt der Dichtungen in den Nuten zu erzielen.It is also known to no longer glue seals, but to form specially shaped circumferential grooves in the sealing area of the individual heat transfer plates and to use special seals designed to complement the groove, in order to achieve a sufficient hold of the seals in the grooves.

Die Aufgabe der vorliegenden Erfindung besteht darin, einen Plattenwärmeaustauscher der eingangs genannten Art so auszubilden, daß mit einfacheren Mitteln eine sichere Befestigung der Dichtung in einer einfachen Nut erreicht werden kann.The object of the present invention is to design a plate heat exchanger of the type mentioned at the outset in such a way that a more secure fastening of the seal in a simple groove can be achieved with simpler means.

Diese Aufgabe wird durch die Erfindung gemäß Anspruch 1 gelöst.This object is achieved by the invention according to claim 1.

Eine vorteilhafte und zweckmäßige Weiterbildung der erfindungsgemäßen Aufgabenlösung ist im Anspruch 2 angegeben.An advantageous and expedient development of the task solution according to the invention is specified in claim 2.

Die Erfindung schlägt als Lösung vor, im Außenbereich der Wärmeübertragungsplatten zwischen Nut und Plattenrand mehrere beabstandete, aus dem Plattenmaterial dreiseitig ausgestanzte, hochgestellte und zur Nut hin geneigte Zungen vorzusehen, die die elastische Dichtung gegen die gegenüberliegende Nutwandung und den Nutgrund drücken. Hierdurch ist auf einfache Art und Weise ein sicherer Sitz der Dichtung in der Nut erreichbar.The invention proposes as a solution to provide in the outer region of the heat transfer plates between the groove and the edge of the plate a plurality of spaced, punched out of the plate material on three sides, upright and inclined tongues that press the elastic seal against the opposite groove wall and the groove base. As a result, a secure fit of the seal in the groove can be achieved in a simple manner.

Gemäß der im Anspruch 2 vorgesehenen Weiterbildung kann die hochgestellte und gegebenenfalls zur Nut hin geneigte Zunge in einen in der Dichtung ausgebildeten Schlitz eingreifen, dessen Länge und/oder Breite kleiner ausgebildet ist als die entsprechende Länge und/oder Breite der Zunge. Durch die elastische Verformung der Dichtung beim Eindrücken der Zunge in den Schlitz preßt sich die Schlitzwandung fest gegen die Zunge. Durch die entstehende Reibungshaftung zwischen Zunge und Dichtungsschlitz wird bereits allein ein sicherer Sitz der Dichtung in der Nut erzielt; durch die gegebenenfalls zusätzliche Klemmwirkung infolge der Neigung der Zunge in Richtung der Nut ist ein noch besserer Sitz der Dichtung in der Nut erreichbar.According to the further development provided in claim 2, the raised and possibly tongue-inclined tongue can engage in a slot formed in the seal, the length and / or width of which is made smaller than the corresponding length and / or width of the tongue. Due to the elastic deformation of the seal when the tongue is pressed into the slot, the slot wall presses firmly against the tongue. The resulting frictional adhesion between the tongue and the sealing slot alone ensures that the seal sits securely in the groove; the additional clamping effect, if any, due to the inclination of the tongue in the direction of the groove, enables an even better fit of the seal in the groove.

Gemäß einer vorteilhaften Weiterbildung der Erfindung sind die Zungen verformt, beispielsweise sichelförmig verformt ausgebildet.According to an advantageous further development of the invention, the tongues are deformed, for example they are of a crescent shape.

Die Verformung der Zunge erhöht deren Festigkeit und die Reibungshaftung zwischen Zunge und Dichtungsschlitz.The deformation of the tongue increases its strength and the frictional adhesion between the tongue and the sealing slot.

Die Erfindung soll nachfolgend anhand der beigefügten Zeichnung, in der ein Ausführungsbeispiel dargestellt ist, näher erläutert werden.The invention will be explained below with reference to the accompanying drawing, in which an embodiment is shown.

Es zeigt

Fig. 1
einen Schnitt durch einen Außenbereich einer Wärmeübertragungsplatte eines Plattenwärmeaustauschers mit Dichtung und einer Zunge,
Fig. 2
eine Draufsicht auf die Dichtung nach Fig. 1,
Fig. 3
einen Schnitt mit Seitenansicht einer Zunge im Außenbereich einer Wärmeübertragungsplatte eines Plattenwärmeaustauschers und
Fig. 4
eine Draufsicht auf den Bereich um die Zunge.
It shows
Fig. 1
a section through an outer area of a Heat transfer plate of a plate heat exchanger with a seal and a tongue,
Fig. 2
2 shows a top view of the seal according to FIG. 1,
Fig. 3
a section with side view of a tongue in the outer region of a heat transfer plate of a plate heat exchanger and
Fig. 4
a top view of the area around the tongue.

Gleiche Bauteile in den Figuren der Zeichnung sind mit den gleichen Bezugszeichen versehen.Identical components in the figures of the drawing are provided with the same reference symbols.

Die Zeichnung zeigt eine Wärmeübertragungsplatte 6 eines Plattenwärmeaustauschers im Bereich einer umlaufenden Dichtung 2, die in den Fig. 3 und 4 nicht dargestellt ist. Im Randbereich der Wärmeübertragungsplatte 6 ist eine umlaufende Nut 3 durch Prägung ausgebildet. Im Außenbereich der Wärmeübertragungsplatte 6 zwischen der Nut 3 und dem Rand der Platte sind entlang der Nut mehrere dreiseitig aus dem Plattenmaterial ausgestanzte, hochgestellte und zur Nut hin geneigte und verformte Zungen 1 angeordnet. Die zur Nut hin geneigte Zunge 1 drückt dabei gegen das Dichtungsmaterial und drückt damit die Dichtung 2 fest gegen den Nutgrund 7 und die gegenüberliegende Nutwandung 8 und in die Nutecke 4, vgl. Fig. 1.The drawing shows a heat transfer plate 6 of a plate heat exchanger in the region of a circumferential seal 2, which is not shown in FIGS. 3 and 4. In the edge area of the heat transfer plate 6, a circumferential groove 3 is formed by stamping. In the outer region of the heat transfer plate 6 between the groove 3 and the edge of the plate, a plurality of tongues 1, which are punched out on three sides from the plate material and are inclined and deformed toward the groove, are arranged along the groove. The tongue 1 inclined towards the groove presses against the sealing material and thus presses the seal 2 firmly against the groove base 7 and the opposite groove wall 8 and into the groove corner 4, cf. Fig. 1.

Die Dichtung 2 kann, wie dies die Fig. 1 und 2 der Zeichnung zeigen, mit einem Schlitz 5 versehen sein, in den die Zunge 1 eingreift. Die Länge und/oder die Breite des Schlitzes 5 ist kleiner ausgebildet als die entsprechende Länge oder Breite der Zunge 1. Beim Eindrücken der Zunge in den Schlitz wird dabei die Dichtung elastisch verformt und preßt sich fest an die Zunge an. Durch die hierdurch bewirkte Reibungshaftung zwischen Zunge und Dichtungsschlitz wird bereits allein ein sicherer Sitz der Dichtung in der Nut erreicht. Durch die Neigung der Zunge in Richtung Nut wird durch die hierdurch erzeugte Klemmwirkung der Sitz der Dichtung in der Nut noch verbessert.The seal 2 can, as shown in FIGS. 1 and 2 of the drawing, be provided with a slot 5 in which the tongue 1 engages. The length and / or the width of the slot 5 is made smaller than the corresponding length or width of the tongue 1. When the tongue is pressed into the slot, the seal is elastically deformed and presses firmly onto the tongue. The resulting frictional adhesion between the tongue and the sealing slot alone ensures that the seal sits securely in the groove. Due to the inclination of the tongue in the direction of the groove, the resulting clamping action results in the seat of the seal still improved in the groove.

Durch die Verformung der Zunge 1, hier beispielsweise eine sichelförmige Verformung, wird die erzeugte Klemmwirkung noch weiter verbessert bei gleichzeitig erhöhter Reibungshaftung zwischen der Zunge 1 und dem Dichtungsschlitz 5. Darüber hinaus wird die Festigkeit der Zunge 1 gegen Verbiegung durch die Verformung erhöht.Due to the deformation of the tongue 1, here for example a crescent-shaped deformation, the clamping effect produced is further improved while at the same time increased frictional adhesion between the tongue 1 and the sealing slot 5. In addition, the strength of the tongue 1 against bending due to the deformation is increased.

Claims (4)

Plattenwärmeaustauscher, bestehend aus mehreren, unter Zwischenschaltung von Dichtungen und unter Verwendung von Druckplatten zu einem Plattenpaket zusammenfügbaren Wärmeübertragungsplatten, wobei die Dichtungen in umlaufenden, im Plattenmaterial geprägten Dichtungen angeordnet sind, dadurch gekennzeichnet, daß im Außenbereich der Wärmeübertragungsplatten (6) zwischen der Nut (5) und dem Rand der Wärmeübertragungsplatte entlang der Nut mehrere dreiseitig aus dem Plattenmaterial ausgestanzte, hochgestellte und zur Nut hin geneigte, die Dichtung (2) gegen den Nutgrund (7) und die gegenüberliegende Nutwandung (4) drückende Zungen (1) angeordnet sind.Plate heat exchanger, consisting of a plurality of heat transfer plates which can be joined together with the interposition of seals and using pressure plates to form a plate pack, the seals being arranged in circumferential seals embossed in the plate material, characterized in that in the outer region of the heat transfer plates (6) between the groove (5 ) and the edge of the heat transfer plate along the groove a plurality of tongues (1) which are punched out on three sides from the plate material, raised and inclined towards the groove and which seal the seal (2) against the groove base (7) and the opposite groove wall (4). Plattenwärmeaustauscher nach Anspruch 1, dadurch gekennzeichnet, daß die Zungen (1) nur hochgestellt oder hochgestellt und zur Nut hin geneigt in Schlitze (5) der Dichtung (2) eingreifen, deren Länge und/oder Breite geringer ist als die entsprechende Länge und/oder Breite der Zungen.Plate heat exchanger according to claim 1, characterized in that the tongues (1) are only raised or raised and, inclined towards the groove, engage in slots (5) of the seal (2), the length and / or width of which is less than the corresponding length and / or Width of the tongues. Plattenwärmeaustauscher nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Zungen (1) verformt sind.Plate heat exchanger according to claim 1 or 2, characterized in that the tongues (1) are deformed. Plattenwärmeaustauscher nach Anspruch 3, dadurch gekennzeichnet, daß die Zungen (1) sichelförmig verformt sind.Plate heat exchanger according to claim 3, characterized in that the tongues (1) are deformed in a sickle shape.
EP95110607A 1995-07-07 1995-07-07 Panel heat exchanger Withdrawn EP0752570A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP95110607A EP0752570A1 (en) 1995-07-07 1995-07-07 Panel heat exchanger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP95110607A EP0752570A1 (en) 1995-07-07 1995-07-07 Panel heat exchanger

Publications (1)

Publication Number Publication Date
EP0752570A1 true EP0752570A1 (en) 1997-01-08

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EP95110607A Withdrawn EP0752570A1 (en) 1995-07-07 1995-07-07 Panel heat exchanger

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000077468A1 (en) * 1999-06-14 2000-12-21 Apv Heat Exchanger A/S A heat exchanger plate and such a plate with a gasket

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE681176C (en) * 1938-04-05 1939-09-16 Eduard Ahlborn Akt Ges Heat exchanger, consisting of a number of sheets placed on top of one another and clamped together
GB1172247A (en) * 1966-04-20 1969-11-26 Apv Co Ltd Improvements in or relating to Plate Heat Exchangers
GB2069680A (en) * 1980-02-12 1981-08-26 Korobchansky O A Bank of plates with channel for fluids
WO1987001189A1 (en) * 1985-08-22 1987-02-26 Pasilac Therm A/S Heat exchanger sheet with an appertaining packing
DE8701365U1 (en) * 1987-01-29 1987-04-09 Gea Ahlborn Gmbh & Co Kg, 3203 Sarstedt Plate of a heat exchanger
FR2618889A1 (en) * 1987-07-31 1989-02-03 Vicarb Sa Plate heat exchangers and new types of plates and gaskets allowing the obtaining of such exchangers

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE681176C (en) * 1938-04-05 1939-09-16 Eduard Ahlborn Akt Ges Heat exchanger, consisting of a number of sheets placed on top of one another and clamped together
GB1172247A (en) * 1966-04-20 1969-11-26 Apv Co Ltd Improvements in or relating to Plate Heat Exchangers
GB2069680A (en) * 1980-02-12 1981-08-26 Korobchansky O A Bank of plates with channel for fluids
WO1987001189A1 (en) * 1985-08-22 1987-02-26 Pasilac Therm A/S Heat exchanger sheet with an appertaining packing
DE8701365U1 (en) * 1987-01-29 1987-04-09 Gea Ahlborn Gmbh & Co Kg, 3203 Sarstedt Plate of a heat exchanger
FR2618889A1 (en) * 1987-07-31 1989-02-03 Vicarb Sa Plate heat exchangers and new types of plates and gaskets allowing the obtaining of such exchangers

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000077468A1 (en) * 1999-06-14 2000-12-21 Apv Heat Exchanger A/S A heat exchanger plate and such a plate with a gasket
US6935415B1 (en) 1999-06-14 2005-08-30 Apv Heat Exchanger A/S Heat exchanger plate and such a plate with a gasket

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