DK180155B1 - Heat exchanger plate and combination of a heat exchanger plate and a gasket - Google Patents

Heat exchanger plate and combination of a heat exchanger plate and a gasket Download PDF

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Publication number
DK180155B1
DK180155B1 DKPA201800918A DKPA201800918A DK180155B1 DK 180155 B1 DK180155 B1 DK 180155B1 DK PA201800918 A DKPA201800918 A DK PA201800918A DK PA201800918 A DKPA201800918 A DK PA201800918A DK 180155 B1 DK180155 B1 DK 180155B1
Authority
DK
Denmark
Prior art keywords
heat exchanger
section
groove
edge
exchanger plate
Prior art date
Application number
DKPA201800918A
Other languages
Danish (da)
Inventor
Andersen Benny
Knudsen Ivan
Original Assignee
Danfoss As
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 Danfoss As filed Critical Danfoss As
Priority to DKPA201800918A priority Critical patent/DK180155B1/en
Priority to EP19205283.5A priority patent/EP3660439B1/en
Publication of DK201800918A1 publication Critical patent/DK201800918A1/en
Application granted granted Critical
Publication of DK180155B1 publication Critical patent/DK180155B1/en

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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

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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

A heat exchanger plate (2) is described comprising an edge (11), a groove (12) running along the edge (11), and a corrugated area (13) having crests (14, 20) and troughs (15) between the groove (12) and the edge (11), wherein crests (14, 20) run perpendicular to the edge (11). Mounting a plate-type heat exchanger should be facilitated. To this end the corrugated area (13) comprises at least two of three different sections (16-18), wherein in the first section (16) adjacent crests (14) are connected by a first connecting wall (19), in a second section (17) a space between the crest (14) is open to the groove (12) and a third section (18) forms a click-on tap position.

Description

Heat exchanger plate and combination of a heat exchanger plate and a gasket
The present invention relates to a heat exchanger plate comprising an edge, 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.
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.
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.
One prior such disclosure is the publication WO2010/092556 relating to a plate structure for a plate heat exchanger, which has an intermediate portion prearranged for making, as required, through holes and a peripheral portion or band, in which a continuous channel is formed for housing a respective
-2annular sealing gasket, and a plurality of notches radially extending from the channel and formed at the peripheral portion for housing respective radially extending projections or protuberances which are extended from the sealing gasket, at least one notch of the plurality of notches having at least one lateral wall having an undercut portion thereof for snap-engagement with a respective protuberance of the gasket.
The object of the invention is to facilitate mounting of a plate-type heat exchanger.
This object is solved as given in the claims. This includes a heat exchanger plate as described at the outset, where the corrugated area comprises at least three different sections, wherein in a first section adjacent crests are connected by a first connecting wall, in a second section a space between the crests is open to the groove, and a third section forms 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 third section 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 third section the crests are connected by a second connecting wall, wherein the second connecting wall has a height smaller than the height of
-3the 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.
In an embodiment of the invention the corrugated area comprises the first section, the second section, and the third section. In this case all three different possibilities are used.
In an embodiment of the invention 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.
In an embodiment of the invention the first section comprises at least three crests. In other words, 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.
-4In an embodiment of the invention in the second section 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.
In an embodiment of the invention 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 %. When the gasket is mounted in the groove, it is squeezed, in particular by the first connecting wall, so that it is kept tight in the groove.
A preferred embodiment of the invention will now be described in more detail with reference to the drawing, wherein:
Fig. 1 shows a side view of a plate-type heat exchanger with stacked heat exchanger plates,
Fig. 2
Fig. 3
Fig. 4
Fig. 5 shows four heat exchanger plates stacked on top of each other, shows an edge region of a heat exchanger plate, shows a deformed gasket material in a groove, and shows click-on taps in an edge region of the heat exchanger plate.
-5Fig. 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. In the heat exchanger plate 2 which is fully visible 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. Here, 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
-6crests 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.
In the 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. In other words, 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 %. Thus, the first connecting wall 19 squeezes the gasket 9 keeping it in place.
Furthermore, the connecting wall 19 assists in making the heat exchanger plate rigid and strong to support high-pressures.
In the second section 17 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.
-7As 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.
In the third section 18 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.
As can be seen in Fig. 5, 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.
As can be seen in Fig. 5, 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.

Claims (7)

1. Varmevekslerplade (2), der består af en kant (11), en rille (12), der løber langs kanten (11), og et bølgeformet område (13), der har toppe (14, 20) og dale (15), mellem rillen (12) og kanten (11), hvor toppene (14, 20) løber vinkelret på kanten (11), kendetegnet ved, at detHeat exchanger plate (2), consisting of an edge (11), a groove (12) running along the edge (11), and a corrugated area (13) having peaks (14, 20) and valleys (15) ), between the groove (12) and the edge (11), the peaks (14, 20) running perpendicular to the edge (11), characterized in that it 5 bølgeformede område (13) omfatter mindst tre forskellige sektioner (16-18), hvor tilstødende toppe (14) i en første sektion (16) er forbundet af en første forbindelsesvæg (19), hvor et rum mellem toppene (14) i en anden sektion (17) er åben mod rillen (12), og hvor en tredje sektion (18) danner en kliktapposition, hvor toppene (20) iThe corrugated area (13) comprises at least three different sections (16-18), adjacent peaks (14) in a first section (16) being connected by a first connecting wall (19), a space between the peaks (14) in a second section (17) is open towards the groove (12), and where a third section (18) forms a click position, the peaks (20) in 10 den tredje sektion (18) er kortere end i den første sektion (16) eller i den anden sektion (17) og toppene (20) i den tredje sektion (18) er forbundet af en anden forbindelsesvæg (21), hvor den anden forbindelsesvæg (21) har en højde, der er lavere end en højde for toppene (20), hvor kliktappen (23) er anbragt i den tredje sektion, (18),10 the third section (18) is shorter than in the first section (16) or in the second section (17) and the peaks (20) in the third section (18) are connected by a second connecting wall (21), where the second connecting wall (21) has a height lower than a height of the tops (20), the snap pin (23) being located in the third section, (18), 15 hvor kliktappen (23) omfatter en første del (25), der rækker ind i en afstand mellem toppen (20), og en anden del (24), der rækker ind under en top (20), kendetegnet ved, at kliktappen (23) omfatter en tredje del (26), der rækker ind i et rum mellem en top (20) og rillen (12).Wherein the snap pin (23) comprises a first part (25) extending into a distance between the top (20) and a second part (24) extending below a top (20), characterized in that the snap pin ( 23) comprises a third part (26) extending into a space between a top (20) and the groove (12). 2. Varmevekslerplade ifølge krav 1, kendetegnet ved, at det bølgeformede område (13) omfatter den første sektion (16), den anden sektion (17) og den tredje sektion (18).Heat exchanger plate according to claim 1, characterized in that the corrugated area (13) comprises the first section (16), the second section (17) and the third section (18). 3. Varmevekslerplade ifølge krav 1 eller 2, kendetegnet ved, at en bund 5 på dalene (15) er i samme plan med en bund på rillen (12).Heat exchanger plate according to claim 1 or 2, characterized in that a bottom 5 of the valleys (15) is in the same plane with a bottom of the groove (12). 4. Varmevekslerplade ifølge et hvilket som helst af kravene 1 til 3, kendetegnet ved, at den første sektion (16) omfatter mindst tre toppe (14).Heat exchanger plate according to any one of claims 1 to 3, characterized in that the first section (16) comprises at least three peaks (14). 5. Varmevekslerplade ifølge et hvilket som helst af kravene 1 til 4, 10 kendetegnet ved, at mellemrummet mellem toppene (14) i den anden sektion (17) er åben mod kanten (11).Heat exchanger plate according to any one of claims 1 to 4, 10, characterized in that the space between the peaks (14) in the second section (17) is open towards the edge (11). 6. Varmevekslerplade ifølge krav 1, kendetegnet ved, at den tredje sektion (26) er placeret over den anden forbindelsesvæg (21).Heat exchanger plate according to claim 1, characterized in that the third section (26) is located above the second connecting wall (21). 7. Kombination af en varmevekslerplade ifølge et hvilket som helst krav 1 15 til 6 og en pakning (9), hvor pakningen (9) har et rumfang, der er større end et rumfang for rillen (12).A combination of a heat exchanger plate according to any one of claims 1 to 6 and a gasket (9), the gasket (9) having a volume greater than a volume of the groove (12).
DKPA201800918A 2018-11-27 2018-11-27 Heat exchanger plate and combination of a heat exchanger plate and a gasket DK180155B1 (en)

Priority Applications (2)

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
EP19205283.5A EP3660439B1 (en) 2018-11-27 2019-10-25 Heat exchanger plate and combination of a heat exchanger plate and a gasket

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
DK201800918A1 DK201800918A1 (en) 2020-06-25
DK180155B1 true DK180155B1 (en) 2020-07-02

Family

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Family Applications (1)

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

Country Status (2)

Country Link
EP (1) EP3660439B1 (en)
DK (1) DK180155B1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK174409B1 (en) * 1998-01-12 2003-02-17 Apv Heat Exchanger As Heat exchanger plate with reinforced edge design
EP1709381B1 (en) * 2003-11-07 2009-04-15 Invensys APV A/S A heat exchanger plate with gasket
SE532344C2 (en) * 2007-12-21 2009-12-22 Alfa Laval Corp Ab Gasket support in heat exchanger and heat exchanger including gasket support
SE533310C2 (en) * 2008-11-12 2010-08-24 Alfa Laval Corp Ab Heat exchanger plate and heat exchanger including heat exchanger plates
ITVR20090014A1 (en) * 2009-02-16 2010-08-17 Luca Cipriani PLATE STRUCTURE FOR PLATE HEAT EXCHANGER

Also Published As

Publication number Publication date
EP3660439A1 (en) 2020-06-03
DK201800918A1 (en) 2020-06-25
EP3660439B1 (en) 2022-06-29

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PAT Application published

Effective date: 20200528

PME Patent granted

Effective date: 20200702