EP3660439B1 - Wärmetauscherplatte und kombination aus einer wärmetauscherplatte und einer dichtung - Google Patents

Wärmetauscherplatte und kombination aus einer wärmetauscherplatte und einer dichtung Download PDF

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Publication number
EP3660439B1
EP3660439B1 EP19205283.5A EP19205283A EP3660439B1 EP 3660439 B1 EP3660439 B1 EP 3660439B1 EP 19205283 A EP19205283 A EP 19205283A EP 3660439 B1 EP3660439 B1 EP 3660439B1
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EP
European Patent Office
Prior art keywords
heat exchanger
section
crests
exchanger plate
gasket
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.)
Active
Application number
EP19205283.5A
Other languages
English (en)
French (fr)
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EP3660439A1 (de
Inventor
Benny Andersen
Ivan Knudsen
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.)
Danfoss AS
Original Assignee
Danfoss AS
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Publication of EP3660439A1 publication Critical patent/EP3660439A1/de
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Publication of EP3660439B1 publication Critical patent/EP3660439B1/de
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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
    • F28F3/10—Arrangements for sealing the margins
    • 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
    • F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
    • F28F3/04—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
    • F28F3/042—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element
    • F28F3/046—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element the deformations being linear, e.g. corrugations
    • 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

Definitions

  • the present invention relates to a heat exchanger plate comprising openings and an edge extending between two of the openings, a groove running along the edge, and a corrugated area having crests and troughs between the groove and the edge, wherein crests run perpendicular to the edge.
  • Such a heat exchanger plate is known, for example, from DE 199 00 629 A1 .
  • the crests of the corrugated area are connected by a connecting wall.
  • WO 2010/056183 A2 shows another heat exchanger plate in which a groove accommodating a sealing is open to the throughs.
  • the invention is in particular used for a high-pressure gasket heat exchanger having a stack of such heat exchanger plates, wherein a gasket is arranged between two adjacent plates.
  • the corrugated area along the edge forms contact points to the neighbouring plates and at the same time a supporting wall for the gasket.
  • the gasket For mounting the heat exchanger the gasket has to be positioned in the groove and the heat exchanger plates have to be positioned one above the other. This can be complicated and requires some skill of a worker, since there is the risk that the gasket leaves the position in the groove when the heat exchanger plates are moved to the stack position.
  • the object of the invention is to facilitate mounting of a plate-type heat exchanger.
  • the corrugated area comprises at least two of three different sections, wherein in a first section adjacent crests are connected by a first connecting wall, in a second section at least one crest is flanked at both sides by a space between the crests that is open to the groove.
  • the heat exchanger plate further comprises a third section that form a click-on tap position.
  • the first connecting wall squeezes the gasket and keeps it in place by friction.
  • the first connecting wall further assists in making the heat exchanger plate rigid and strong to support high-pressures.
  • the second section comprises a space or a plurality of spaces which are open to the groove. Here the material of the compressed gasket is allowed to move into the open spaces assisting in keeping the gasket in position.
  • the third section is provided to position a click-on tap in order to secure the gasket in the groove.
  • the corrugated area comprises the first section, the second section, and the third section. In this case all three different possibilities are used.
  • a bottom of the troughs is coplanar with a bottom of the groove. This is in particular useful in the region of the second section since the gasket has not to be moved over a step which is positive for the lifetime of the gasket and for the tightness of the heat exchanger.
  • the first section comprises at least three crests.
  • the first connecting wall extends at least over two troughs.
  • the squeezing area of the gasket is quite large and the stiffness of the heat exchanger plate in this area is increased.
  • the space between the crests is open to the edge.
  • the space into which the gasket can move is preferably not limited in a direction towards the edge.
  • the crests are shorter than in the first section or the second section. Accordingly, there remains a space between the crests in the third section and the groove which can be used for parts of the click-on tap.
  • the crests are connected by a second connecting wall, wherein the second connecting wall has a height smaller than the height of the crests.
  • the second connecting wall has basically the same advantages as the first selecting wall, i.e. it can squeeze the gasket and it can enhance the stiffness and rigidity of the plate to support high pressures. Furthermore, it can be used as a mounting means for the click-on tap.
  • a click-on tap is positioned in the third section, wherein the click-on tap comprises a first portion reaching into a distance between crests and a second portion reaching under a crest. Such an embodiment secures the click-on tap in a direction perpendicular to a plane of the heat exchanger plate.
  • the click-on tap comprises a third portion reaching in a space between a crest and the groove. This is possible, because the crests in the third section are shorter than the crests in the first section and/or the second section are.
  • the third portion of the click-on tap can be used to secure the tap in a direction parallel to the plane of the heat exchanger plate.
  • the third portion is positioned over the second connecting wall. It is thus held by the crests in the third section.
  • the invention relates in a second aspect to a combination of the heat exchanger plate as described above and a gasket wherein the gasket has a volume that is larger than a volume of the groove.
  • the volume of the gasket can slightly be larger than that of the groove, for example, by 20 to 25 %.
  • Fig. 1 shows schematically a side view of a plate-type heat exchanger 1 having a number of heat exchanger plates 2 squeezed between a bottom plate 3 and a top plate 4. Openings 5, 6 are provided to form access of fluid to flow paths formed between the plates 2. In addition, there are two further openings 7, 8 which are visible in Fig. 2 only. The first openings 5, 6 can be used for a fluid flowing through the primary side of the heat exchanger 1 and the second openings 7, 8 can be used for a fluid flowing through the secondary side of the heat exchanger 1.
  • Each heat exchanger plate 2 is provided with a gasket 9.
  • the arrangement of gaskets is shown in Fig. 2 .
  • the gasket 9 allows a flow from the first opening 5 to the second opening 6, i.e. through the primary side of the heat exchanger 1.
  • the next heat exchanger plate 2 has a slightly different path of the sealing 9.
  • the openings 5, 6 are sealed against the interior and (not visible) a flow path is established between the openings 7, 8, i.e. through the secondary side of the heat exchanger.
  • Fig. 3 shows an edge area 10 of the heat exchanger plates 2. It is not necessary that the edge area 10 surrounds completely the heat exchanger plate 2. In most cases it is sufficient that the edge area extends along an edge connecting the openings 5, 6 or along an edge connecting the openings 7,8.
  • the edge area 10 extends from an edge 11 towards the interior of the heat exchanger plate 2.
  • the edge area 10 comprises a groove 12 running along the edge 11, i.e. substantially in parallel to the edge 11.
  • a corrugated area 13 is arranged between the edge 11 and the groove 12.
  • the corrugated area comprises crests 14 and troughs 15, wherein the crests 14 and thus the troughs 15 run perpendicular to the edge 11.
  • a bottom of the troughs 15 is coplanar with a bottom of the groove 12, i.e. there is no step between the bottom of the troughs 15 and the groove 12 or such a step has a neglectable height.
  • the corrugated area 13 at the edge 11 forms contact points to the neighbouring heat exchanger plates 2 and at the same time a supporting means for a gasket to be positioned in the groove 12.
  • the corrugated area 13 comprises at least two of three different sections 16, 17, 18. In a preferred embodiment the corrugated area 13 comprises all three different sections 16, 17, 18.
  • first section 16 crests 14 are connected by a first connecting wall 19.
  • the connecting wall 19 connects at least three crests 14, i.e. it bridges at least two troughs 15.
  • the first section 16 comprises at least three crests 14.
  • the first section 16 can be repeatedly arranged along the edge 11.
  • the connecting wall 19 provides support for the gasket 9 when it is in position within groove 12.
  • the volume of the gasket 9 can be slightly larger than that of the groove 12, for example by 20 % to 25 %.
  • the first connecting wall 19 squeezes the gasket 9 keeping it in place.
  • the connecting wall 19 assists in making the heat exchanger plate rigid and strong to support high-pressures.
  • a space between the crests 14 is open to the groove 12. It can be totally open, i.e. it can be as well open to the edge 11. As can be seen in Fig. 4 , the material of the compressed gasket 9 is allowed to move into the troughs 15 assisting in keeping the gasket 9 in position.
  • the number crests 14 of the first section 16 connected by the connecting wall 19 defines a stiffens, or rigidness, of the heat exchanger plate 2 in the edge area 10, but at the same time makes an obstacle to the material of the compressed gasket 9.
  • a good number has been found to be in the range of 2-5 crests 14, where the illustrated embodiments show three crests 14.
  • the crests 14 in the second section 17 are isolated, meaning they are not connected to any connecting wall 19 at either side. They thus are flanked at both sides by troughs 15 with spaces being totally open to the edge 11 allowing compressed gasket 9 to move into the toughs 15.
  • the number of crests 14 if the second defines the area where the compressed gasket 9 is allowed to move into the throughs 15, but also reduces the stiffness, or rigidness, by reducing the number of crests 14 connected by connecting wall 19.
  • a good number of crests 14 in the second section 17 has been found to be in the range of 1-5.
  • the number of crests 14 in the first section equals the number of crests 14 in a second section, such as seen in fig. 3 .
  • the edge area 10 comprise a plural of at least first sections 16 and second sections 17 positioned in succession, and in a related embodiment also third sections 18, where e.g. a first section 16 is neighboured at one side by a second section 17, that again is neighboured by a third section 19.
  • the number of e.g. the crests 14 in the second section 17 may be different, meaning some e.g. have one crest 14 only, others two, three etc.
  • third sections 18 are neighboured at both sides by second sections 17.
  • the crests 20 are shorter than the crests 14 in the first and second section 16, 17.
  • the crests 20 of the third section 18 are connected by a second connecting wall 21.
  • the second connecting wall 1 has a height smaller than a height of the crests 14, 20.
  • the second connecting wall comprises rounding's 22 matching similar shapes of the gasket 9.
  • a click-on tap 23 can be positioned in the third section 18.
  • the click-on tap 23 can be positioned over the second connection wall 21.
  • the click-on tap 23 comprises a part 24 reaching below the crests 14 and a part 25 reaching into the trough 15. Furthermore, click-on tap 23 may include a projection 26 reaching into a not visible projection in a bottom of a further plate above the plate 2 shown.
  • the effect of the click-on tap 23 is to assist during mounting of the gasket 9 and to keep it more stable in place.
  • the projection 26 is positioned over the second connecting wall 21 and is positioned between the groove 12 and the crests 20, so that it is held stable in position even against pulling forces acting parallel to a plane of the heat exchanger plate 2.

Landscapes

  • 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)

Claims (12)

  1. Wärmetauscherplatte (2), umfassend Öffnungen (5, 6; 7, 8) und eine Kante (11), die sich zwischen zwei der Öffnungen (5, 6; 7, 8) erstreckt, eine Nut (12), die entlang der Kante (11) verläuft, und einen gewellten Bereich (13) mit Erhöhungen (14, 20) und Vertiefungen (15) zwischen der Nut (12) und der Kante (11), wobei Erhöhungen (14, 20) senkrecht zu der Kante (11) verlaufen, dadurch gekennzeichnet, dass der gewellte Bereich (13) mindestens zwei unterschiedliche Abschnitte (16, 17) umfasst, wobei in einem ersten Abschnitt (16) aneinandergrenzende Erhöhungen (14) durch eine erste Verbindungswand (19) verbunden sind und in einem zweiten Abschnitt (17) mindestens eine Erhöhung (14) an beiden Seiten von einem Raum zwischen den Erhöhungen (14) flankiert ist, der zu der Nut (12) offen ist.
  2. Wärmetauscherplatte (2) nach Anspruch 1, ferner umfassend einen dritten Abschnitt (18), der eine Einrastlaschenposition bildet.
  3. Wärmetauscherplatte nach Anspruch 2, dadurch gekennzeichnet, dass der gewellte Bereich (13) den ersten Abschnitt (16), den zweiten Abschnitt (17) und den dritten Abschnitt (18) umfasst.
  4. Wärmetauscherplatte nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass ein Boden der Vertiefungen (14, 20) komplanar mit einem Boden der Nut (12) ist.
  5. Wärmetauscherplatte nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass der erste Abschnitt (16) mindestens drei Erhöhungen (14) umfasst.
  6. Wärmetauscherplatte nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass in dem zweiten Abschnitt (17) der Raum zwischen den Erhöhungen (14) zu der Kante (11) offen ist.
  7. Wärmetauscherplatte nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass in dem dritten Abschnitt (18) die Erhöhungen (20) kürzer als in dem ersten Abschnitt (16) oder dem zweiten Abschnitt (17) sind.
  8. Wärmetauscherplatte nach Anspruch 6, dadurch gekennzeichnet, dass in dem dritten Abschnitt (18) die Erhöhungen (20) durch eine zweite Verbindungswand (21) verbunden sind, wobei die zweite Verbindungswand (21) eine Höhe aufweist, die kleiner als eine Höhe der Erhöhungen (20) ist.
  9. Wärmetauscherplatte nach Anspruch 6 oder 7, dadurch gekennzeichnet, dass eine Einrastlasche (23) in dem dritten Abschnitt (18) positioniert ist, wobei die Einrastlasche (23) einen ersten Teil (25), der sich in einen Abstand zwischen Erhöhungen (20) erstreckt, und einen zweiten Teil (24), der sich unter eine Erhöhung (20) erstreckt, umfasst.
  10. Wärmetauscherplatte nach Anspruch 8, dadurch gekennzeichnet, dass die Einrastlasche (23) einen dritten Teil (26) umfasst, der sich in einen Raum zwischen einer Erhöhung (20) und der Nut (12) erstreckt.
  11. Wärmetauscherplatte nach Anspruch 9, dadurch gekennzeichnet, dass der dritte Teil (26) über der zweiten Verbindungswand (21) positioniert ist.
  12. Kombination aus einer Wärmetauscherplatte nach einem der Ansprüche 1 bis 10 und einer Dichtung (9), wobei die Dichtung (9) ein Volumen aufweist, das größer als ein Volumen der Nut (12) ist.
EP19205283.5A 2018-11-27 2019-10-25 Wärmetauscherplatte und kombination aus einer wärmetauscherplatte und einer dichtung Active EP3660439B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DKPA201800918A DK180155B1 (en) 2018-11-27 2018-11-27 Heat exchanger plate and combination of a heat exchanger plate and a gasket

Publications (2)

Publication Number Publication Date
EP3660439A1 EP3660439A1 (de) 2020-06-03
EP3660439B1 true EP3660439B1 (de) 2022-06-29

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EP19205283.5A Active EP3660439B1 (de) 2018-11-27 2019-10-25 Wärmetauscherplatte und kombination aus einer wärmetauscherplatte und einer dichtung

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EP (1) EP3660439B1 (de)
DK (1) DK180155B1 (de)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK174409B1 (da) * 1998-01-12 2003-02-17 Apv Heat Exchanger As Varmevekslerplade med forstærket kantudformning
ATE428899T1 (de) * 2003-11-07 2009-05-15 Invensys Apv As Wärmetauscherplatte mit dichtung
SE532344C2 (sv) * 2007-12-21 2009-12-22 Alfa Laval Corp Ab Packningsstöd i värmeväxlare och värmeväxlare innefattande packningsstöd
SE533310C2 (sv) * 2008-11-12 2010-08-24 Alfa Laval Corp Ab Värmeväxlarplatta och värmeväxlare innefattande värmeväxlarplattor
ITVR20090014A1 (it) * 2009-02-16 2010-08-17 Luca Cipriani Struttura di piastra per scambiatore di calore a piastre

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DK201800918A1 (en) 2020-06-25
DK180155B1 (en) 2020-07-02
EP3660439A1 (de) 2020-06-03

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