EP2775248B1 - Joint de fixation dans un échangeur de chaleur de type plaque - Google Patents

Joint de fixation dans un échangeur de chaleur de type plaque Download PDF

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Publication number
EP2775248B1
EP2775248B1 EP14153155.8A EP14153155A EP2775248B1 EP 2775248 B1 EP2775248 B1 EP 2775248B1 EP 14153155 A EP14153155 A EP 14153155A EP 2775248 B1 EP2775248 B1 EP 2775248B1
Authority
EP
European Patent Office
Prior art keywords
gasket
groove
heat exchanger
extensions
exchanger plate
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.)
Not-in-force
Application number
EP14153155.8A
Other languages
German (de)
English (en)
Other versions
EP2775248A1 (fr
Inventor
Sasa Marusic
Qingyan Wang
Tine Ogorevc
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 date
Application filed by Danfoss AS filed Critical Danfoss AS
Publication of EP2775248A1 publication Critical patent/EP2775248A1/fr
Application granted granted Critical
Publication of EP2775248B1 publication Critical patent/EP2775248B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • 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 present invention relates to a a heat exchanger plate and a gasket as defined in the preamble of claim 1.
  • a heat exchanger plate and a gasket is known for example from WO 99/67589 .
  • the heat exchanger plate and the gasket are to be used in a heat exchanger comprising a stack of heat exchanger plates formed of sheet metal having a three-dimensional structured pattern, each heat exchanger plate having a gasket groove, a gasket being arranged in said gasket groove and resting against an adjacent heat exchanger plate, said groove having a bottom, said bottom having at least a protrusion directed to said adjacent heat exchanger plate.
  • Such heat exchangers are commonly known and may have a pattern, such as a so-called herringbone pattern, i.e. a pattern which has indentations consisting of straight ridges and valleys. The ridges and valleys change direction in the centre, producing the pattern that resembles a herringbone.
  • a heat exchanger pack alternate plates are turned so that the indentations cross one another. Heat exchangers can be sealed by rubber gaskets.
  • the present invention relates to gasket heat exchangers with any kind of pattern, where in a gasket heat exchanger the plates typically are kept under tension by external forces, for example by introducing bolds through bores of the plates. Consequently, in a gasket heat exchanger the heat exchanger plates are kept under a pre-tension.
  • the present invention relates to fixing the gaskets within the grooves.
  • Such fixing is known in the art, such as seen in US5988268 disclosing a plate with a heat transfer surface formed with a suitable uneven pattern.
  • the portion of the plate surrounding the heat transfer surface is formed with a gasket groove.
  • the fixing element comprises a pair of projections projecting from the core, and a connecting portion connecting said projections and extending parallel with the core, while the recess comprises recesses adapted to fit on the projections of the fixing element, and a hole adapted to fit on the connecting portion of the fixing element. Because of such three-dimensional fitting arrangement, the joining strength between the gasket and the plate is high.
  • the connecting portion of the fixing element is parallel with the core and hence with the gasket groove and is adapted to fit in the hole in the form of an elongated slit hole which is likewise parallel with the gasket groove; therefore, some versatility is given to the fixing element in the direction parallel with the gasket groove.
  • the plates in the pressing tool may during the formation of the patterns be misaligned with up to a millimetre or even more.
  • the one may risk that the gasket is well positioned along one edge of the exchanger but not along the opposing parallel edge, thus giving the risk of leakage.
  • the present idea is to introduce an extension of the gasket to be fixing into a recess as in US5988268 , but where these extensions helps to give a feeling that the gasket is positioned further where the positioning of the gasket is easier during assembly of the heat exchanger.
  • the present invention thus relates to a fixing of the gasket according to the claims.
  • Fig. 1 illustrates a simple heat exchanger plate (1) having a gasket (2) in the proximity of the edge encircling the heat exchanging area (3).
  • a first pair of port openings (4a, 4b) forms inlet and outlet respectively for a first fluid to flow through a first channel system formed between neighbouring plates by their patterns
  • a second pair of port openings (5a, 5b) forms inlet and outlet respectively for a second fluid to flow through a second channel system also formed between neighbouring plates by their patterns.
  • Every second such channels formed between two neighbouring plates forms part of the first channel system, and the others forms part of the second channel system, where preferably most of the heat exchanger plates then has a first kind channel system at one surface side and the second kind channel system at the opposing surface side of the plate.
  • the second pair of port openings (5a, 5b) will be sealed off (2a) from the heat exchanging area (3) as seen in Fig. 1 , and in the same manner for every second channel system the first pair of port openings (4a, 4b) will be sealed off, this is not illustrated.
  • the gasket (2) is positioned within a gasket groove (6) where a part in the vicinity of a port opening like (4a) is seen in Fig. 2 .
  • the gasket (2) comprises gasket extensions (7) for fixing it in the gasket groove (6), where these gasket extensions (7) essentially are H-shaped having two first parts (7a) reaching in a direction away from the gasket (2) and a second part (7b) connecting the two first parts (7a).
  • the gasket groove (6) forms groove extensions (8) also essentially H-shaped having two first groove sections (8a) extending in a direction away from the main gasket groove (6) of the heat exchanger and one section groove section (8b) extending in a direction to connect the two first groove sections (6).
  • the gasket extensions (7) and groove extensions (8) are formed such that a gasket extension (7) may be positioned within a groove extension (8).
  • At least one of the two first parts (7a) is substantially perpendicular to the gasket (2), at least seen where the gasket extension (7) is connected to the gasket (2)
  • the second part (7b) is substantially parallel to the gasket (2), at least seen where the gasket extension (7) is connected to the gasket (2)
  • the groove extensions (8) are such that a opening (9) is formed in the edge of the heat exchanger plate (1) and at least one of the two first parts (7a) has a length such that when positioned within a groove extension (8) it extends through the opening (9) into the externals.
  • the gasket may be contacted at these first parts (7a) reaching out of the heat exchanger and thus re-positioned at the one side or the other.
  • the groove extensions (8) are formed by having two projections (10a, 10b) seen relative to the bottom surface of the groove (6, 8)
  • the first projection (10a) being the one closest to the gasket groove (6) is formed such that is has the side (11a) facing the gasket groove (6) being closed and the side (11b) away from the gasket groove (6) being open.
  • the closed side (11a) is to prevent any damaging of the gasket due to potential burrs after cutting the heat plate material to form the first (10a) and second (10b) projections.
  • the second projection (10b) being farthest away from the gasket groove (6) has the side (12) facing the gasket groove (6) being open.
  • the first (10a) and second (10b) projections has surfaces at the same level as other patterns of the heat exchanger plates (1) such as those of the heat exchanging section (3) being herringbone shaped, dimple shaped etc. In this manner they in addition provide support to the neighbouring plate.
  • the slope of the non-closed sides of the projections (10a, 10b) preferably with a slope in the range of 40-50 degrees, more preferably in the vicinity of 45 degrees, for maximal elongation of the heat plate material ensuring stable production process.
  • Fig. 3 shows one embodiment of gasket extension (7) also showing wings (13) at the second part (7b) extending in opposing sides and formed such that they are adapted to fit into the openings of the open sides (11b) and (12) of the first (10a) and second (10b) projections respectively.
  • these wings (13) thus will fit into the open sides (11b) and (12) helping to kept the gasket (2) firmly in position, but they also has the effect that during assembly a feeling of the gasket 'clicking' into position may be observed when the wings (13) 'clicks' into the open sides (11b) and (12).
  • Fig. 3 further illustrates an embodiment where one of the two first parts (7a) is longer than the other and may be the only one reaching out of the opening (9). This may e.g. be due to a tightening bold reaching through the heat exchanger plates (1) at this position.
  • Fig. 4 illustrates another design of the gasket (2) where each gasket extension (7) is also accommodated by an 'inwards shaping' (14) of the gasket towards to heat exchanging section (2). Further illustrated is another feature embodiment of the first parts (7a) of the gasket extensions (7) reaching out of the heat exchanger, then sections (15) with information prints may be attached to one or more of the gasket extensions (7) such as wear a trademark, a serial number, product number etc.

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 (6)

  1. Plaque d'échangeur de chaleur (1) et joint (2) destiné à être positionné à l'intérieur d'une rainure de joint (6) formée dans ladite plaque d'échangeur de chaleur (1) pour un échangeur de chaleur, où ladite rainure de joint (6) forme des prolongements de rainure (8) essentiellement en forme de H possédant deux premiers prolongements de rainure (8a) s'étendant dans une direction à l'opposé d'une rainure de joint principale (6) de la plaque d'échangeur de chaleur et une seconde section de rainure (8b) s'étendant dans une direction pour raccorder les deux premières sections de rainure (8a), et où le joint (2) comprend des prolongements de joint (7) pour fixer le joint (2) dans la rainure de joint (6), où les prolongements de joint (7) présentent essentiellement une forme de H possédant deux premières parties (7a) s'étendant dans une direction à l'opposé du joint (2) pour être positionnées à l'intérieur des deux premiers prolongements de rainure (8a) de la plaque d'échangeur de chaleur et une seconde partie (7b) raccordant les deux premières parties (7a) pour être positionnées à l'intérieur de la seconde section de rainure (8b) de la plaque d'échangeur de chaleur, dans lesquels les prolongements de rainure (8) sont tels qu'une ouverture (9) soit formée dans le bord de la plaque d'échangeur de chaleur (1), et caractérisés en ce qu' au moins l'une des deux premières parties (7a) des prolongements de joint possède une longueur telle que, lorsqu'elle est positionnée à l'intérieur d'un prolongement de rainure (8a), elle s'étende à travers l'ouverture (9) dans les externes de telle sorte que le joint puisse être mis en contact à ces premières parties (7a) et repositionné.
  2. Plaque d'échangeur de chaleur (1) et joint (2) selon la revendication 1, dans lesquels au moins l'une des deux premières parties (7a) des prolongements de joint est sensiblement perpendiculaire au joint (2).
  3. Plaque d'échangeur de chaleur (1) et joint (2) selon la revendication 1 ou 2, dans lesquels la seconde partie (7b) des prolongements de joint est sensiblement parallèle au joint (2).
  4. Plaque d'échangeur de chaleur (1) et joint (2) selon la revendication 1, où le prolongement de rainure (8) est formé par une première saillie (10a) étant plus près de la rainure de joint (6) et formée de telle sorte qu'elle soit ait le côté (11a) faisant face à la rainure de joint (6) étant fermé et le côté (11b) à l'opposé de la rainure de joint (6) étant ouvert, et une seconde saillie (10b) étant la plus éloignée de la rainure de joint (6) ait le côté (12) faisant face à la rainure de joint (6) étant ouvert.
  5. Plaque d'échangeur de chaleur (1) et joint (2) selon la revendication 4, où les première (10a) et seconde (10b) saillies possèdent des surfaces au même niveau que d'autres motifs des plaques d'échangeur de chaleur.
  6. Plaque d'échangeur de chaleur (1) et joint (2) selon l'une quelconque des revendications précédentes, où le prolongement de joint (7) possède des ailes (13) à la seconde partie (7b) s'étendant dans des côtés opposés et formées telle qu'elles soient adaptées pour aller dans les ouvertures des côtés ouverts (11b) et (12) des première (10a) et seconde (10b) saillies, respectivement.
EP14153155.8A 2013-03-08 2014-01-30 Joint de fixation dans un échangeur de chaleur de type plaque Not-in-force EP2775248B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DK201300128A DK177634B1 (en) 2013-03-08 2013-03-08 Fixing gasket in plate type heat exchanger

Publications (2)

Publication Number Publication Date
EP2775248A1 EP2775248A1 (fr) 2014-09-10
EP2775248B1 true EP2775248B1 (fr) 2017-10-04

Family

ID=49911859

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14153155.8A Not-in-force EP2775248B1 (fr) 2013-03-08 2014-01-30 Joint de fixation dans un échangeur de chaleur de type plaque

Country Status (5)

Country Link
EP (1) EP2775248B1 (fr)
CN (1) CN104034196B (fr)
DK (1) DK177634B1 (fr)
RU (1) RU2555087C1 (fr)
UA (1) UA110532C2 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2993328A1 (fr) 2015-08-14 2017-02-23 Danfoss A/S Systeme a compression de vapeur dote d'au moins deux groupes evaporateurs
MX2018004617A (es) 2015-10-20 2018-07-06 Danfoss As Metodo para controlar un sistema de compresion de vapor con un valor nominal de presion del receptor variable.
CA2997660A1 (fr) 2015-10-20 2017-04-27 Danfoss A/S Procede de commande de systeme de compression de vapeur en mode d'ejecteur pendant une periode prolongee
JP6647889B2 (ja) * 2016-02-02 2020-02-14 株式会社神戸製鋼所 流路構造体
DK179580B1 (en) * 2017-11-22 2019-02-20 Danfoss A/S Heat transfer plate for plate heat exchanger and plate heat exchanger with the same
DK180140B1 (en) * 2018-10-15 2020-06-23 Danfoss As Intellectual Property Gasket click-on extending over projection
DK180146B1 (en) * 2018-10-15 2020-06-25 Danfoss As Intellectual Property Heat exchanger plate with strenghened diagonal area
EP3792577B1 (fr) * 2019-09-13 2021-12-22 Alfa Laval Corporate AB Moyen de retenue pour plaque d'échangeur de chaleur, agencement de joint d'étanchéité pour plaque d'échangeur de chaleur, plaque d'échangeur de chaleur avec une partie de bord et échangeur de chaleur à plaques
RU2738541C1 (ru) * 2019-10-31 2020-12-14 Данфосс А/С Теплообменная пластина
DK180418B1 (en) * 2019-11-07 2021-04-22 Danfoss As Heat exchanger plate

Family Cites Families (8)

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Publication number Priority date Publication date Assignee Title
SU1430716A1 (ru) * 1987-01-22 1988-10-15 Предприятие П/Я Р-6273 Пластина теплообменника
JP3069592B2 (ja) * 1990-02-21 2000-07-24 株式会社日阪製作所 プレート式熱交換器
JPH08271178A (ja) * 1995-03-29 1996-10-18 Hisaka Works Ltd プレート式熱交換器
IL125113A (en) * 1998-06-25 2001-08-26 Pessach Seidel Heat exchanger plates and sealing gaskets therefor
US6935415B1 (en) * 1999-06-14 2005-08-30 Apv Heat Exchanger A/S Heat exchanger plate and such a plate with a gasket
DE10035776C1 (de) * 2000-07-22 2001-12-13 Gea Ecoflex Gmbh Plattenwärmetauscher
KR100581843B1 (ko) * 2005-05-09 2006-05-22 대원열판(주) 판형열교환기의 전열판과 가스켓의 결합구조
CN202304546U (zh) * 2011-10-18 2012-07-04 天津国际机械有限公司 一种板式换热器用免粘式密封垫本体的结构改进

Non-Patent Citations (1)

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Title
None *

Also Published As

Publication number Publication date
RU2555087C1 (ru) 2015-07-10
CN104034196B (zh) 2017-03-01
EP2775248A1 (fr) 2014-09-10
DK177634B1 (en) 2014-01-13
UA110532C2 (ru) 2016-01-12
CN104034196A (zh) 2014-09-10

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