EP2775248B1 - Fixing gasket in plate type heat exchanger - Google Patents

Fixing gasket in plate type heat exchanger 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)
French (fr)
Other versions
EP2775248A1 (en
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
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
Publication of EP2775248A1 publication Critical patent/EP2775248A1/en
Application granted granted Critical
Publication of EP2775248B1 publication Critical patent/EP2775248B1/en
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)

Description

  • The present invention relates to a a heat exchanger plate and a gasket as defined in the preamble of claim 1. Such 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.
    • BACKGROUND
  • 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. In a heat exchanger pack, alternate plates are turned so that the indentations cross one another. Heat exchangers can be sealed by rubber gaskets.
  • Other designs of the pattern known includes the so-called dimple pattern where a plurality of heat exchanger plates comprises at least one section showing indentations intended to be placed against corresponding indentations of a heat exchanger plate of a corresponding design. Such designs are disclosed e.g. in EP1794529 , EP2455694 and EP2455695 .
  • 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.
  • In order to prevent gaskets from falling off the heat plates and be misaligned within the gasket groove during assembly and servicing of the heat exchanger, they must be fixed to the heat plate.
  • Thus, in order to prevent gaskets from falling off the heat plates and be misaligned within the gasket groove during assembly and servicing of the heat exchanger, they must be fixed to the heat plate within the gasket grooves
    Therefore 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. Furthermore, 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 fixing in this disclosure however has some drawbacks. Firstly, 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.
    • SUMMARY OF THE INVENTION
  • 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.
    • FIGURES
    • Fig. 1
    Illustration of a heat exchanger plate with a gasket having gasket extensions according to the present invention
    Fig. 2
    Illustrate a groove extension for fixation of the gasket.
    Fig. 3
    Illustrate a gasket extension embodiment for fixation of the gasket.
    Fig. 4
    Illustrate a further embodiment of a gasket having gasket extensions.
    DETAILED DESCRIPTION
  • 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). As it is commonly known in heat exchangers formed of a stack of such heat exchanger plates (1), 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, and 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. For every first channel system 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). For this 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).
  • In one embodiment of the present invention 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)
  • In a further embodiment of the present invention 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. Hereby is achieved that during construction of the heat exchanger when the gasket is mounted, 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. When the gasket extension is (7) is correctly positioned within the groove extension (8) 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).
  • With this design it is ensured that the gasket will be always perfectly positioned relative to the plate pattern and prevents misalignment of the gasket (2) within gasket groove (6) due to the poor alignment of the heat plate material within pressing tool.
  • 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.

Claims (6)

  1. Heat exchanger plate (1) and a gasket (2) to be positioned within a gasket groove (6) formed in said heat exchanger plate (1) for a heat exchanger, where said gasket groove (6) forming groove extensions (8) essentially H-shaped having two first groove extensions (8a) extending in a direction away from a main gasket groove (6) of the heat exchanger plate and a second groove section (8b) extending in a direction to connect the two first groove sections (8a), and where the gasket (2) comprises gasket extensions (7) for fixing the gasket (2) in the gasket groove (6), where the gasket extensions (7) are essentially H-shaped having two first parts (7a) reaching in a direction away from the gasket (2) to be positioned within the two first groove extensions (8a) of the heat exchanger plate and a second part (7b) connecting the two first parts (7a) to be positioned within the second groove section (8b) of the heat exchanger plate, wherein the groove extensions (8) are such that an opening (9) is formed in the edge of the heat exchanger plate (1) and characterized in that at least one of the two first parts (7a) of the gasket extensions has a length such that when positioned within a groove extension (8a) it extends through the opening (9) into the externals such that the gasket may be contacted at these first parts (7a) and re-positioned.
  2. Heat exchanger plate (1) and a gasket (2) according to claim 1, wherein at least one of the two first parts (7a) of the gasket extensions is substantially perpendicular to the gasket (2).
  3. Heat exchanger plate (1) and a gasket (2) according to claim 1 or 2, wherein the second part (7b) of the gasket extensions is substantially parallel to the gasket (2).
  4. Heat exchanger plate (1) and a gasket (2) according claim 1, where the groove extension (8) is formed by a first projection (10a) being closest to the gasket groove (6) and 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, and a second projection (10b) being farthest away from the gasket groove (6) has the side (12) facing the gasket groove (6) being open.
  5. Heat exchanger plate (1) and a gasket (2) according claim 4, where the first (10a) and second (10b) projections has surfaces at the same level as other patterns of the heat exchanger plates.
  6. Heat exchanger plate (1) and a gasket (2) according to any of the preceding claims, where the gasket extension (7) has 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.
EP14153155.8A 2013-03-08 2014-01-30 Fixing gasket in plate type heat exchanger Not-in-force EP2775248B1 (en)

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 (en) 2014-09-10
EP2775248B1 true EP2775248B1 (en) 2017-10-04

Family

ID=49911859

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EP14153155.8A Not-in-force EP2775248B1 (en) 2013-03-08 2014-01-30 Fixing gasket in plate type heat exchanger

Country Status (5)

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

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Publication number Priority date Publication date Assignee Title
ES2737984T3 (en) 2015-08-14 2020-01-17 Danfoss As A steam compression system with at least two evaporator groups
CN108139131B (en) 2015-10-20 2020-07-14 丹佛斯有限公司 Method for controlling vapor compression system in ejector mode for long time
EP3365618B1 (en) 2015-10-20 2022-10-26 Danfoss A/S A method for controlling a vapour compression system with a variable receiver pressure setpoint
JP6647889B2 (en) * 2016-02-02 2020-02-14 株式会社神戸製鋼所 Channel structure
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
DK180146B1 (en) * 2018-10-15 2020-06-25 Danfoss As Intellectual Property Heat exchanger plate with strenghened diagonal area
DK180140B1 (en) * 2018-10-15 2020-06-23 Danfoss As Intellectual Property Gasket click-on extending over projection
EP3792577B1 (en) * 2019-09-13 2021-12-22 Alfa Laval Corporate AB A retaining means for a heat exchanger plate, a gasket arrangement for a heat exchanger plate, a heat exchanger plate with an edge portion and a plate heat exchanger
RU2738541C1 (en) * 2019-10-31 2020-12-14 Данфосс А/С Heat exchange plate
DK180418B1 (en) * 2019-11-07 2021-04-22 Danfoss As Heat exchanger plate

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SU1430716A1 (en) * 1987-01-22 1988-10-15 Предприятие П/Я Р-6273 Heat exchanger plate
JP3069592B2 (en) * 1990-02-21 2000-07-24 株式会社日阪製作所 Plate heat exchanger
JPH08271178A (en) * 1995-03-29 1996-10-18 Hisaka Works Ltd Plate type heat exchanger
IL125113A (en) * 1998-06-25 2001-08-26 Pessach Seidel Heat exchanger plates and sealing gaskets therefor
JP4657546B2 (en) * 1999-06-14 2011-03-23 インベンシス アーペーベー アー／エス Heat exchanger plate
DE10035776C1 (en) * 2000-07-22 2001-12-13 Gea Ecoflex Gmbh Plate heat exchanger for medical or food industry use has seals provided between stacked plates provided with nipples fitting through holes on plates
KR100581843B1 (en) * 2005-05-09 2006-05-22 대원열판(주) Structure for combining heat plate with gasket of a plate type heat exchanger
CN202304546U (en) * 2011-10-18 2012-07-04 天津国际机械有限公司 Improved structure of adhesive-free sealing gasket body for plate heat exchanger

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Also Published As

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

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