EP3792577B1 - Haltemittel für eine wärmetauscherplatte, dichtungsanordnung für eine wärmetauscherplatte, wärmetauscherplatte mit kantenabschnitt und plattenwärmetauscher - Google Patents

Haltemittel für eine wärmetauscherplatte, dichtungsanordnung für eine wärmetauscherplatte, wärmetauscherplatte mit kantenabschnitt und plattenwärmetauscher Download PDF

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Publication number
EP3792577B1
EP3792577B1 EP19197264.5A EP19197264A EP3792577B1 EP 3792577 B1 EP3792577 B1 EP 3792577B1 EP 19197264 A EP19197264 A EP 19197264A EP 3792577 B1 EP3792577 B1 EP 3792577B1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
plate
retaining means
transversal
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
EP19197264.5A
Other languages
English (en)
French (fr)
Other versions
EP3792577A1 (de
Inventor
Fredrik Blomgren
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.)
Alfa Laval Corporate AB
Original Assignee
Alfa Laval Corporate AB
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 Alfa Laval Corporate AB filed Critical Alfa Laval Corporate AB
Priority to EP19197264.5A priority Critical patent/EP3792577B1/de
Priority to DK19197264.5T priority patent/DK3792577T3/da
Priority to ES19197264T priority patent/ES2907938T3/es
Priority to CN202080064034.0A priority patent/CN114391084B/zh
Priority to PCT/EP2020/074707 priority patent/WO2021048004A1/en
Priority to KR1020227011562A priority patent/KR102654111B1/ko
Publication of EP3792577A1 publication Critical patent/EP3792577A1/de
Application granted granted Critical
Publication of EP3792577B1 publication Critical patent/EP3792577B1/de
Active 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
    • 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
    • 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
    • F28D9/0062—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 spaced plates with inserted elements
    • F28D9/0075—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 spaced plates with inserted elements the plates having openings therein for circulation of the heat-exchange medium from one conduit to another
    • 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
    • F28F3/083—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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/007—Auxiliary supports for elements
    • F28F9/0075—Supports for plates or plate assemblies
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/04—Arrangements for sealing elements into header boxes or end plates
    • F28F9/06—Arrangements for sealing elements into header boxes or end plates by dismountable joints
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/04—Arrangements for sealing elements into header boxes or end plates
    • F28F9/16—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling
    • F28F9/18—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by welding
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2230/00—Sealing means

Definitions

  • the present invention relates to 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. More specifically, the disclosure relates to 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 as defined in the introductory part of the independent claim attached herein
  • a retaining means for a heat exchanger plate according to the preamble of claim 1 is disclosed in EP 2 762 823 .
  • Plate heat exchangers typically consist of two end-pieces or plates in between which a number of heat transfer plates are arranged in an aligned manner, in a package.
  • PHEs gasketed plate heat exchangers
  • gaskets are arranged between the heat transfer plates.
  • the end plates, also called pressure plates, and the heat transfer plates, are pressed towards each other whereby the gaskets function as a seal between the heat transfer plates.
  • the gaskets define flow channels between the heat transfer plates through which channels fluids of initially different temperatures can flow for transferring heat from one fluid to the other.
  • a carrying bar for supporting the pressure plates as well as the heat transfer plates is arranged to extend from an upper or lower part of the frame plate through a recess in the heat exchange plates.
  • the heat transfer plates may either stand or hang on the carrying bar, and thus be supported by the carrying bar.
  • the carrying bar is arranged to extend in a direction which is perpendicular to a plane of a longitudinal and transversal extension of the heat transfer plates.
  • the plates are often designed with a recess or opening having a snap-on function to retain the carrying bar within the recess provided on the edge of each heat transfer plate in a package. In this way a safeguard is provided against the risk that the plates will fall and/or glide during assembly.
  • the solution works by arranging an opening or recess to an edge of each heat exchanger plate. The opening is narrower than the diameter of the bar at an outer edge of the plate and wider towards the center of the plate so that the bar can be accommodated in the recess.
  • the extension of the recess is usually arranged to be longer than the accommodation of the carrying bar requires and is often arranged by having the plate extend beyond the longitudinal center axis of the bars and by reducing the extension of the opening in the plate so that it is more narrow than the diameter of the bar. This however often requires that the heat exchanger plate needs to be longer than required for the heat exchange process.
  • a retaining means for a heat exchanger plate having a longitudinal extension and a transversal extension perpendicular to the longitudinal extension, the retaining means comprising a first gripping portion and a second gripping portion, which are arranged parallelly at a transversal distance from each other.
  • Each of the first and second gripping portions comprises a respective longitudinally extending finger member configured to be engaged with a surface of a heat exchanger plate.
  • Each finger member is attached at one end to a respective first transversal portion or second transversal portion.
  • the transversal distance between the first and second transversal portions is shorter than the transversal distance between the longitudinally extending finger members, whereby an open compartment is formed.
  • the compartment is limited in the transversal direction by the two longitudinally extending finger members and at least partly in the longitudinal direction by the first and second transversal portions, the formed compartment being configured to retain an object comprising a transversal extension, which has a larger transversal extension than the transversal distance between the first and second transversal portions, within the compartment.
  • the present retaining means a simple and robust retaining means can be provided for objects having a larger transversal extension than the transversal distance between the first and second transversal portions, within a compartment.
  • the present retaining means it is possible to replace the retaining means obtained by the shape of the plate by cheaper materials, and thus reduce the use of metallic raw materials used for heat exchange plates. Due to large amounts of materials used in heat exchanger plates, the small dimensional design change leads to large material savings, which is a huge advantage from both environmental and economical point of view.
  • sufficient support for carrying bars used in the assembly of heat exchangers can be provided by the retaining means as claimed in the appended claims.
  • Each of the first gripping portion and second gripping portion may comprise at least two longitudinally extending finger members, which can be used for engaging an edge of a heat exchanger plate.
  • the finger members may be configured to be positioned at opposite sides of the plate. In this way, a snap-on function may be retained even if the plate moves backwards-forwards, i.e. in the plane perpendicular to the plane of the longitudinal axis of the plate.
  • the transversal portions may be configured to rest against the plate edge, whereby the movement of the transversal portions in the longitudinal direction can be limited.
  • the finger members in the respective first and second gripping portions may have different lengths. Thus, material can be saved in the retaining means.
  • the finger members of the respective first and second gripping portions may be attached to the respective first and second transversal portions at an angle of 10-70°, in respect of the direction of the longitudinal extension of the retaining means. In this way, the supporting force of the transversal portions may be further improved.
  • the retaining means may comprise a connecting section adapted to connect the first and second gripping portions with each other. Thereby an integrated design for the retaining means can be obtained.
  • the connecting section may be attached to the first and second transversal portions or the connecting section may be attached to the finger members at an end opposite to the end attached to the respective first and second transversal portions.
  • the present invention also relates to a gasket arrangement for a heat exchanger plate comprising a gasket comprising a fluid sealing loop and a retaining means as defined above.
  • the retaining means has a longitudinal extension and a transversal extension perpendicular to the longitudinal extension.
  • the retaining means comprises a first gripping portion and a second gripping portion, which are arranged parallelly at a transversal distance from each other.
  • Each of the first and second gripping portions comprises a respective longitudinally extending finger member configured to be engaged with a surface of a heat exchanger plate.
  • Each finger member is attached at one end to a respective first transversal portion or second transversal portion.
  • the transversal distance between the first and second transversal portions is shorter than the transversal distance between the longitudinally extending finger members, whereby an open compartment is formed.
  • the compartment is limited in the transversal direction by the two longitudinally extending finger members and at least partly in the longitudinal direction by the first and second transversal portions, the formed compartment being configured to retain an object comprising a transversal extension, which is larger than the transversal distance between the first and second transversal portions, within the compartment.
  • Each of the first gripping portion and second gripping portion may comprise at least two longitudinally extending finger members for engaging an edge of a heat exchanger plate edge, the finger members being attached at one end to a respective first transversal portion and second transversal portion.
  • the finger members may have different lengths in the longitudinal direction of the retaining means. Thus, mounting of the gasket arrangement may be facilitated and material savings achieved.
  • the longer finger members may be connected or integrated to the gasket.
  • the gasket and the retaining means may however be connected to or integrated with each other to form a one piece construction.
  • the gasket and the retaining means When the gasket and the retaining means are connected to each other, they may be provided as separate components, but be connected together before or during mounting. Thus, when the parts are provided as separate parts connected to each other, in case of breakage of one part only this part needs to be replaced by a new part.
  • a section of the gasket may be configured to function as a connecting portion for the first gripping portion and the second gripping portion. In this way, a simple integrated construction may be achieved.
  • the retaining means and the gasket may comprise or consist of the same or different materials.
  • the gasket material is of an integrated construction, it may be advantageous from the manufacturing point of view to use the same material for both the retaining means and gasket. In the other hand, it may be advantageous to use different materials, since in this way material characteristics may be adapted to either the sealing function or the retaining function in respective portions.
  • the material used in the retaining means and/or the gasket may be an elastic material, whereby mounting of the retaining means and the gasket on the heat exchange plates is facilitated.
  • the present invention also relates to a heat exchanger plate having two opposite side surfaces, an extension in a longitudinal, transversal and thickness direction of the plate, and comprises an edge portion comprising a recess configured to fit a carrying bar.
  • the heat exchanger plate comprises the retaining means as described above or the gasket arrangement comprising the retaining means as described above.
  • the retaining means is arranged such that the first gripping portion and the second gripping portion are arranged at a respective lateral side of the recess and such that at least one of the transversal portions has a transversal extension adapted to extend over an edge of the recess.
  • the retaining means By the retaining means, the usage of plate material can be reduced, and it is possible to utilize a larger area of the plate for heat exchanging, since no excessive plate material is needed for providing a snap-on function for a carrying bar during mounting of a heat exchanger.
  • the heat exchanger plate may have a substantially rectangular shape and the plate comprises an upper edge, lower edge, two side edges and a groove for the gasket on at least one side surface thereof, and wherein the recess is arranged at the upper or lower edge of the plate.
  • a carrying bar can be fitted to the recess to support the plates during mounting of a heat exchanger.
  • the retaining means may comprise at least two finger members, which are arranged to engage the edge of the heat exchanger plate such that at least one of the finger members is positioned on each side of the two opposite side surfaces of the plate, and wherein the transversal portions of the retaining means are adapted to extend in proximity to or along the edge of the plate.
  • the two finger members on opposite sides of the plate may additionally act as gripping members for the retaining means by engaging the edge of the plate.
  • the transversal portions may be configured to rest against the plate edge, whereby the movement of the transversal portions in the longitudinal direction can be limited.
  • the heat exchanger plate may comprise a corrugated edge portion, which comprises a series of crests and troughs in an area extending outwards of the recess along the edge of the plate.
  • the finger members may be adapted to be positioned in the troughs. Thus, the finger members may be fitted to grip the plate edge such that the thickness of the plate will not increase substantially. Also the troughs grip the finger members and prevent lateral movement of the finger members.
  • the finger members may have two different lengths, wherein the shorter finger members are adapted to be positioned on one side of the plate and the longer finger members are adapted to be positioned on the opposite side of the plate comprising the gasket.
  • the recess may have a semi-circular shape to adapt to the shape of the carrying bar.
  • any cross sectional shape, which may correspond to the shape of the carrying bar is conceivable.
  • the retaining means may comprise a connecting section, which has a shape adapted to surround the periphery of the recess. In this way increased fastening surface can be provided. Additionally, increased support for the gripping portions can be provided, e.g. because the connecting section is located in proximity of the carrying bar fitted in the recess.
  • the present invention also relates to a plate heat exchanger comprising a frame and a plurality of stacked heat exchanger plates as defined above, wherein the plates are supported by at least one carrying bar adapted to be fitted in the recess of each heat exchanger plate.
  • the carrying bar may be adapted to be fitted into the recess at an upper edge of each heat exchanger plate.
  • FIG 1 shows an example of a plate heat exchanger 100 according to the present disclosure comprising a plurality of stacked gasketed heat-exchanger plates 200.
  • the plate heat exchanger 100 may be aimed for the treatment of a fluid medium.
  • the treatment may be for example heating, cooling, heat recovery, evaporation and condensation.
  • the fluid may be a liquid, such as water, for example seawater, or air.
  • the plate heat exchanger is used for treatment of seawater to desalinate the seawater, but is not limited thereto.
  • the plate heat exchanger 100 comprises a plurality of gasketed heat exchanger plates 200, which may be for example compression moulded.
  • the heat exchanger plates 200 are provided stacked in parallel to each other and successively in such a way that they form a plate package 2.
  • the plate package 2 is provided between a frame plate 3 and a pressure plate 4. Between the heat exchanger plates 200, first plate interspaces 5 and second plate interspaces 6 are formed.
  • the first plate interspaces 5 and the second plate interspaces 6 are provided in an alternating order in the plate package 2 in such a way that substantially each first plate interspace 5 is surrounded by two second plate interspaces 6, and substantially each second plate interspace 6 is surrounded by two first plate interspaces 5.
  • Different sections in the plate package 2 are delimited from each other by means of gaskets 220 in each plate interspace 5, 6, which is to be explained more closely below.
  • FIG. 2 An example of a prior art gasketed heat exchanger plate 200' comprising a gasket 220' of a known type is illustrated in Fig. 2 .
  • the heat exchanger plate 200' has an extension in a longitudinal direction I, and transversal direction t.
  • the plate 200' has two opposite substantially parallel side edges 7, 8, an upper edge 9 and a lower edge 10.
  • a centre axis C extends substantially centrally between the two side edges 7 and 8, and substantially longitudinally.
  • the centre axis C extends vertically when the plate package 2 is located in a normal position of use.
  • the plate package 2, i.e. the heat exchanger plates 200' and the gaskets 220' provided there between, is kept together by means of schematically indicated tie bolts 11 in a manner known per se.
  • the gasket 220' defines flow channels 21, 22, 23, 24 between the heat transfer plates through which channels fluids, for example of initially different temperatures, can flow and transfer heat from one fluid to the other.
  • Fig. 2 discloses one side of the heat exchanger plate 1, which faces one of the first plate interspaces 5 substantially arranged to form a passage for the medium to be treated; for example seawater to be desalinated.
  • the opposite side of the plate 1 faces one of the second plate interspaces 6.
  • there is a main gasket 220' extending around the liquid medium channels 21, 22, 23 and 24 in the proximity of plate edges 7, 8, 9 and 10.
  • the upper edge 9 and the lower edge 10 of the heat exchanger plate 200' comprise a recess 50' with a snap-on function to fit and retain a carrying bar.
  • the carrying bar has a purpose of supporting the plates during assembly or mounting of a heat exchanger.
  • FIG. 3 schematically illustrates a portion of the upper edge 10 of a prior art heat exchanger plate 200' that comprises the recess 50' with a snap-on function for the carrying bar.
  • the recess 50' comprises a semi-circular main portion 51' and a lengthened upper portion 52'.
  • the recess 50' is configured to fit a carrying bar 30.
  • the illustrated carrying bar 30 has a circular cross-section, but generally for carrying bars discussed in this disclosure, any other cross-section shape could be used.
  • the transversal distance d2 between the opposite lengthened upper portions 52' is smaller than the broadest cross-sectional extension, which in this case is a diameter d1, of the carrying bar 30. Due to the lengthened upper portions 52', the carrying bar is retained in the recess, and substantial movement of the carrying bar in the longitudinal direction is prevented. However, as mentioned above, the design of the illustrated type requires that the plate is longer than necessary.
  • retaining means is meant a component or device comprising one or several parts and having a design configured to substantially retain an object in a certain position.
  • the retaining means has a longitudinal extension in the longitudinal direction I and a transversal extension in the transversal direction t, perpendicular to the longitudinal extension.
  • the illustrated retaining means 60 is provided for retaining a carrying bar 30 (not shown in Fig. 8 and Fig. 9 ) in a recess 50 located at an upper edge 9 of a heat exchanger plate 200.
  • the retaining means 60 comprises two opposite gripping portions, i.e. a first gripping portion 61 and a second gripping portion 62, which are arranged at a transversal distance d2 from each other. This distance may be pre-defined and adapted to the shape and dimensions of the recess and the carrying bar 30, which is to be retained within the recess 50.
  • Each of the first and second gripping portions 61 and 62 comprises a respective transversally extending portion 63 and 64 and longitudinally extending finger member 65 and 66 attached to the respective transversal portion 63 and 64.
  • the finger members 65 and 66 are configured to be engaged with a first surface 91 of the heat exchanger plate 200.
  • the first surface 91 may be the surface on which a gasket 220 of the plate is mounted and thus corresponds to a front surface of the plate.
  • the transversal distance d2 between the first and second transversal portions 63 and 64 is shorter than the transversal distance d3 between the longitudinally extending finger members 65 and 66, whereby an open compartment 70 is formed.
  • open compartment is meant a section, which is not completely surrounded by outer bounds, but is instead partially limited by outer bounds.
  • the compartment 70 is limited in the transversal direction t by the two longitudinally extending finger members 65 and 66 and at least partly in the longitudinal direction by the first and second transversal portions 63 and 64.
  • the formed compartment 70 is thus configured to retain an object comprising a transversal extension, for example extension d1 of the carrying bar 30, which is larger than the transversal distance d2 between the first and second transversal portions 63 and 64, within the compartment 70.
  • the object is thus retained in the compartment by preventing the movement of the object at least in one longitudinal direction, which is the drawings shown is vertically upwards.
  • the retaining means comprises only two longitudinal finger members 65 and 66, which may be attached to the plate surface 91 for example by means of gluing, hot melting the retaining means material or by welding.
  • the present retaining means is simple in construction and robust. By the present retaining means it is possible to replace the lengthened upper portions 52' used in the known heat exchange plates.
  • the retaining means of the present invention may be manufactured of materials which are cheaper than the plate material. Thereby more economical retaining means can be obtained while the use of valuable metallic raw materials can be decreased.
  • each of the first gripping portion 61 and second gripping portion 62 comprises two longitudinally extending finger members 65, 67, and 66, 68, respectively, on the front surface 91 of the plate 200.
  • each of the first gripping portion 61 and second gripping portion 62 comprises one further finger member 691 and 692 on the second, i.e. backside, surface 92 of the plate 200.
  • the finger members 65-68 and 691, 692 illustrated in Fig. 5 and Fig. 6 can be used for engaging an edge 9 of the heat exchanger plate 200 by gripping the edge 9 by the finger members on both sides of the plate 200.
  • the transversal portions 63, 64 may be configured to rest against the plate edge 9, whereby the movement of the transversal portions in the longitudinal direction can be limited.
  • the finger members 65, 67, 66, 68 and 691, 692 in the respective first and second gripping portions 61, 62 may have different lengths.
  • the finger members on the respective sides 91 and 92 have different lengths, for example such that the finger members 691 and 692 on the backside 92 are shorter than the finger members 65, 67, 66, 68 engaged with the front surface 91 of the plate.
  • material can be saved in the retaining means.
  • the amount of finger members may vary, and can be for example from 1-10, but is not limited thereto.
  • the retaining means is held tightly at its position, even if the plate moved backwards-forwards, i.e. in the plane perpendicular to the plane of the longitudinal axis of the plate.
  • the retaining means 60 may comprise a connecting section 80 adapted to connect the first and second gripping portions 61 and 62 with each other. Thereby an integrated design for the retaining means can be obtained.
  • the connecting section 80 may be attached to the first and second transversal portions 63, 64 on the backside 92 of the plate 200 as illustrated in Fig. 7 .
  • a further example of the retaining means 60 is illustrated.
  • the finger members 65, 67, 691, 693 and 66, 68, 692, 694 of the respective first and second gripping portions 61, 62 may be attached to the respective first and second transversal portions 63, 64 at an angle of 10-70°, in respect of the longitudinal extension of the retaining means.
  • the finger members 691-694 located on the backside 92 of the plate may be shorter than the finger members 65-69 on the front side 91 of the plate 200.
  • a connecting section 80 may be attached to the finger members 65-68 at an end opposite to the end attached to the respective first and second transversal portions 63, 64. As shown in the illustrated example the connecting section is also located on the front side 91 of the plate 200.
  • the connecting section 80 may be a part of a gasket 220 of the plate 200.
  • the present invention also relates to a gasket arrangement 250 for a heat exchanger plate 200.
  • An example of a gasket arrangement 250 is schematically illustrated in Fig. 10 .
  • the gasket arrangement 250 comprises a gasket 220 comprising a fluid sealing loop and a retaining means 60 as described in the examples above.
  • fluid sealing loop is meant that the gasket is formed to seal at least two separate fluid channels.
  • the retaining means 60 is configured to retain a carrying bar 30 in a recess 50 of the plate 200.
  • the retaining means corresponds to the retaining means described in connection with Fig. 4 , but could be of the type comprising at least two longitudinally extending finger members for engaging an edge of the heat exchanger plate edge and as described in connection with Fig. 5-9 .
  • the longer finger members may be connected or integrated to a gasket to form a one piece construction.
  • the gasket and the retaining means are connected to each other, they may be provided as separate components, but be connected together before or during mounting.
  • parts are provided as separate parts connected to each other, it will be possible to replace only one part in case of breakage of the part in question.
  • the retaining means and the gasket may comprise or consist of the same or different materials.
  • the gasket material is of an integrated construction, it may be advantageous from the manufacturing point of view to use the same material for both the retaining means and gasket.
  • the material used in the retaining means and/or the gasket may be an elastic material, whereby mounting of the retaining means and the gasket on the heat exchange plates is facilitated.
  • the material for the retaining means may be chosen to be stiffer than for the gasket. Examples of suitable materials for the gaskets and/or the retaining means include, but are not limited to, rubber, polymeric materials and metals.
  • the present invention also relates to a heat exchanger plate 200 having two opposite side surfaces 91 and 92, an extension in a longitudinal, transversal and thickness direction of the plate, and comprises an edge portion 9 comprising a recess 50 configured to fit a carrying bar 30, and reference is made to Fig. 4-10 .
  • the heat exchanger plate 200 comprises the retaining means 60 as described above or the gasket arrangement 250 comprising the retaining means as described above.
  • the retaining means is arranged such that the first gripping portion and the second gripping portion are arranged at a respective lateral side of the recess 50 and such that at least one of the transversal portions 63, 64 has a transversal extension adapted to extend over an edge of the recess 50.
  • the retaining means By the retaining means, the usage of plate material can be reduced, and it is possible to utilize a larger area of the plate for heat exchanging, since no excessive plate material is needed for providing a snap-on function for a carrying bar needed during mounting of a heat exchanger.
  • the heat exchanger plate 200 may have a substantially rectangular shape and the plate comprises an upper edge, lower edge, two side edges and a groove for the gasket on at least one side surface thereof.
  • the recess 50 is arranged at the upper or lower edge of the plate.
  • a carrying bar can be fitted to the recess to support the plates during mounting of a heat exchanger.
  • the heat exchanger plate 200 may comprise a corrugated edge portion 9 comprising a series of crests 94 and troughs 93 in an area extending outwards of the recess 50 along the edge 9 of the plate 200, wherein the reference signs are shown in Fig. 4 .
  • the finger members 65-69 and 691-694 may be adapted to be positioned in the troughs 93. Thus, the finger members may be fitted to grip the plate edge such that the thickness of the plate will not increase substantially. Also the troughs grip the finger members and prevent lateral movement of the finger members.
  • the finger members may have two different lengths, wherein the shorter finger members are adapted to be positioned on one side of the plate and the longer finger members are adapted to be positioned on the opposite side of the plate comprising the gasket.
  • the recess 50 may have a semi-circular shape to adapt to the shape of the carrying bar.
  • any cross sectional shape, which may correspond to the shape of the carrying bar is conceivable.
  • the retaining means may comprise a connecting section, which has a shape adapted to surround the periphery of the recess. In this way increased fastening surface can be provided. Additionally, increased support for the gripping portions can be provided, e.g. because the connecting section is located in proximity of the carrying bar fitted in the recess.
  • the present invention also relates to a plate heat exchanger comprising a frame and a plurality of stacked heat exchanger plates as defined above and as generally shown in Fig. 1 .
  • the plates are supported by at least one carrying bar adapted to be fitted in the recess of each heat exchanger plate.
  • the carrying bar may be adapted to be fitted into the recess at an upper edge of each heat exchanger plate.

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 (17)

  1. Haltemittel (60) für eine Wärmetauscherplatte (200), wobei das Haltemittel (60) eine Längserstreckung (1) und eine Quererstreckung (t) senkrecht zu der Längserstreckung aufweist, wobei das Haltemittel (60) einen ersten Greifabschnitt (61) und einen zweiten Greifabschnitt (62) umfasst, die mit einem Querabstand voneinander parallel angeordnet sind, wobei jeder von dem ersten und dem zweiten Greifabschnitt (61; 62) ein jeweiliges sich längs erstreckendes Fingerelement (65; 66) umfasst, das dafür konfiguriert ist, mit einer Oberfläche (91) einer Wärmetauscherplatte (200) in Eingriff gebracht zu werden, wobei jedes Fingerelement (65; 66) an einem Ende an einem jeweiligen ersten Querabschnitt (63) oder zweiten Querabschnitt (64) angebracht ist, dadurch gekennzeichnet, dass der Querabstand (d2) zwischen dem ersten und dem zweiten Querabschnitt (63; 64) kürzer als der Querabstand (d3) zwischen den sich längs erstreckenden Fingerelementen (65; 66) ist, wodurch ein offenes Fach (70) gebildet wird, wobei das Fach (70) in der Querrichtung (t) durch die zwei sich längs erstreckenden Fingerelemente (65; 66) und mindestens teilweise in der Längsrichtung (1) durch den ersten und den zweiten Querabschnitt (63; 64) begrenzt ist, wobei das gebildete Fach (70) dafür konfiguriert ist, einen Gegenstand (30) zu halten, der eine größere Quererstreckung (d1) als der Querabstand (d2) zwischen dem ersten und dem zweiten Querabschnitt (63, 64) innerhalb des Fachs (70) aufweist.
  2. Haltemittel (60) nach Anspruch 1, wobei jeder von dem ersten Greifabschnitt (61) und dem zweiten Greifabschnitt (62) mindestens zwei sich längs erstreckende Fingerelemente (65, 67; 66, 68) zum Eingreifen mit einer Kante (9) einer Wärmetauscherplatte (200) umfasst.
  3. Haltemittel nach Anspruch 2, wobei die Fingerelemente (65-69; 691-694) in dem jeweiligen ersten und zweiten Greifabschnitt (61; 62) verschiedene Längen aufweisen.
  4. Haltemittel (60) nach Anspruch 1, 2 oder 3, wobei die Fingerelemente (65-69; 691-694) des jeweiligen ersten und zweiten Greifabschnitts (61; 62) an dem jeweiligen ersten und zweiten Querabschnitt mit einem Winkel von 10-70° in Bezug auf die Richtung der Längserstreckung (1) des Haltemittels (60) angebracht sind.
  5. Haltemittel nach einem der vorhergehenden Ansprüche, wobei das Haltemittel (60) einen Verbindungsabschnitt (80) umfasst, der dazu geeignet ist, den ersten und den zweiten Greifabschnitt (61; 62) miteinander zu verbinden.
  6. Dichtungsanordnung (250) für eine Wärmetauscherplatte (200), umfassend eine Dichtung (220), umfassend einen Fluiddichtungsring und ein Haltemittel (60) nach einem der Ansprüche 1 bis 5.
  7. Dichtungsanordnung nach Anspruch 6, wobei die Fingerelemente (65-69; 691-694) verschiedene Längen in der Längsrichtung (1) des Haltemittels (60) aufweisen und die längeren Fingerelemente mit der Dichtung (220) verbunden oder mit dieser integriert sind.
  8. Dichtungsanordnung nach einem der Ansprüche 6 bis 7, wobei die Dichtung (220) und das Haltemittel (60) miteinander verbunden oder integriert sind, um eine einstückige Konstruktion zu bilden.
  9. Dichtungsanordnung nach einem der Ansprüche 6 bis 8, wobei ein Teil der Dichtung (220) dafür konfiguriert ist, als Verbindungsabschnitt (80) für den ersten Greifabschnitt (61) und den zweiten Greifabschnitt (62) zu dienen.
  10. Dichtungsanordnung nach einem der Ansprüche 6 bis 9, wobei das Haltemittel (60) und die Dichtung (220) die gleichen oder verschiedene Materialien umfassen oder daraus bestehen.
  11. Wärmetauscherplatte (200) mit zwei gegenüberliegenden Seitenflächen (91; 92), einer Erstreckung in einer Längsrichtung (1), einer Querrichtung (t) und einer Dickenrichtung (d) der Platte (200), und umfassend einen Kantenabschnitt (9), umfassend eine Ausnehmung (50), die dafür konfiguriert ist, zu einer Trägerstange (30) zu passen, wobei die Wärmetauscherplatte (200) das Haltemittel (60) nach einem der Ansprüche 1 bis 5 oder die Dichtungsanordnung (250) nach einem der Ansprüche 6 bis 10 umfasst, wobei das Haltemittel (60) derart angeordnet sind, dass der erste Greifabschnitt (61) und der zweite Greifabschnitt (62) an einer jeweiligen seitlichen Seite der Ausnehmung (50) angeordnet sind und dass mindestens einer der Querabschnitte (63; 64) eine Quererstreckung aufweist, die dazu geeignet ist, sich über eine Kante der Ausnehmung (50) zu erstrecken.
  12. Wärmetauscherplatte nach Anspruch 11, wobei die Wärmetauscherplatte (200) eine im Wesentlichen rechteckige Form aufweist und eine Oberkante (9), eine Unterkante (10), zwei Seitenkanten (7, 8) und eine Nut für die Dichtung (220) auf mindestens einer Seitenfläche (91) von dieser umfasst, und wobei die Ausnehmung (50) an der Oberkante (9) oder Unterkante (10) der Platte angeordnet ist.
  13. Wärmetauscherplatte nach Anspruch 11 oder 12, wobei das Haltemittel (60) mindestens zwei Fingerelemente (65-69; 691-694) umfasst, die so angeordnet sind, dass sie in die Kante (9) der Wärmetauscherplatte (200) derart eingreifen, dass mindestens eines der Fingerelemente (65-69; 691-694) auf jeder Seite der zwei gegenüberliegenden Seitenflächen (91; 92) der Platte (200) positioniert ist, und wobei die Querabschnitte (63; 64) des Haltemittels (60) dazu geeignet sind, sich in der Nähe oder entlang der Kante (9) der Platte zu erstrecken.
  14. Wärmetauscherplatte nach einem der Ansprüche 11 bis 13, wobei die Wärmetauscherplatte (200) einen gewellten Kantenabschnitt (9) umfasst, der eine Reihe von Scheiteln (94) und Mulden (93) in einem Bereich umfasst, der sich von der Ausnehmung (50) entlang der Kante (9) der Platte (200) nach außen erstreckt, und wobei die Fingerelemente (65-69; 691-694) dazu geeignet sind, in den Mulden (93) positioniert zu werden.
  15. Wärmetauscherplatte nach einem der Ansprüche 11 bis 14, wobei die Fingerelemente (65-69; 691-694) zwei verschiedene Längen aufweisen, wobei die kürzeren Fingerelemente dazu geeignet sind, auf einer Seite (92) der Platte (200) positioniert zu werden, und die längeren Fingerelemente dazu geeignet sind, auf der gegenüberliegenden Seite (91) der Platte (200), die die Dichtung (220) umfasst, positioniert zu werden.
  16. Wärmetauscherplatte nach einem der Ansprüche 11 bis 15, wobei das Haltemittel (60) einen Verbindungsabschnitt (80) umfasst, der eine Form aufweist, die dazu geeignet ist, den Umfang der Ausnehmung (50) zu umgeben.
  17. Plattenwärmetauscher (100), umfassend einen Rahmen und eine Vielzahl von gestapelten Wärmetauscherplatten (200) nach einem der Ansprüche 11 bis 16, wobei die Platten von mindestens einer Trägerstange (30) gestützt werden, die dazu geeignet ist, in die Ausnehmung (50) jeder Wärmetauscherplatte (200) zu passen.
EP19197264.5A 2019-09-13 2019-09-13 Haltemittel für eine wärmetauscherplatte, dichtungsanordnung für eine wärmetauscherplatte, wärmetauscherplatte mit kantenabschnitt und plattenwärmetauscher Active EP3792577B1 (de)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP19197264.5A EP3792577B1 (de) 2019-09-13 2019-09-13 Haltemittel für eine wärmetauscherplatte, dichtungsanordnung für eine wärmetauscherplatte, wärmetauscherplatte mit kantenabschnitt und plattenwärmetauscher
DK19197264.5T DK3792577T3 (da) 2019-09-13 2019-09-13 Holdemiddel til varmevekslerplade, pakningsanordning til varmevekslerplade, varmevekslerplade med kantdel og pladevarmeveksler
ES19197264T ES2907938T3 (es) 2019-09-13 2019-09-13 Un medio de retención para una placa intercambiadora de calor, una disposición de junta para una placa intercambiadora de calor, una placa intercambiadora de calor con una porción de borde y un intercambiador de calor de placas
CN202080064034.0A CN114391084B (zh) 2019-09-13 2020-09-04 用于热交换器板的固持装置和垫圈布置、热交换器板和板式热交换器
PCT/EP2020/074707 WO2021048004A1 (en) 2019-09-13 2020-09-04 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
KR1020227011562A KR102654111B1 (ko) 2019-09-13 2020-09-04 열교환기 판을 위한 유지 수단, 열교환기 판을 위한 개스킷 배열체, 에지 부분을 갖는 열교환기 판 및 판형 열교환기

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19197264.5A EP3792577B1 (de) 2019-09-13 2019-09-13 Haltemittel für eine wärmetauscherplatte, dichtungsanordnung für eine wärmetauscherplatte, wärmetauscherplatte mit kantenabschnitt und plattenwärmetauscher

Publications (2)

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EP3792577A1 EP3792577A1 (de) 2021-03-17
EP3792577B1 true EP3792577B1 (de) 2021-12-22

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EP (1) EP3792577B1 (de)
KR (1) KR102654111B1 (de)
CN (1) CN114391084B (de)
DK (1) DK3792577T3 (de)
ES (1) ES2907938T3 (de)
WO (1) WO2021048004A1 (de)

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SE8303449L (sv) * 1983-06-16 1984-12-17 Alfa Laval Thermal Packningsarrangemang for plattvermevexlare
JP3500211B2 (ja) * 1994-12-15 2004-02-23 株式会社日本クライメイトシステムズ 積層型熱交換器
IL125113A (en) * 1998-06-25 2001-08-26 Pessach Seidel Heat exchanger plates and sealing gaskets therefor
JP3139681B2 (ja) * 1999-05-31 2001-03-05 春男 上原 凝縮器
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JP2009523994A (ja) * 2006-01-23 2009-06-25 ベール ゲーエムベーハー ウント コー カーゲー 熱交換器
US8453721B2 (en) * 2007-01-31 2013-06-04 Tranter, Inc. Seals for a stacked-plate heat exchanger
DE102008007385B3 (de) * 2008-02-01 2009-09-03 Hubert Wolf Gasvorwärmer
SE533583C2 (sv) * 2009-03-13 2010-10-26 Alfa Laval Corp Ab Plattvärmeväxlare
KR101551345B1 (ko) * 2009-06-24 2015-09-08 한온시스템 주식회사 열교환기
SE534918C2 (sv) * 2010-06-24 2012-02-14 Alfa Laval Corp Ab Värmeväxlarplatta och plattvärmeväxlare
PT2762823T (pt) * 2013-01-30 2017-10-03 Alfa Laval Corp Ab Meio de fixação, disposição de juntas e conjunto
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WO2016053100A2 (en) * 2014-10-02 2016-04-07 2Ndair B.V. A method of conditioning air and an air-conditioner module
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EP3182048A1 (de) * 2015-12-16 2017-06-21 Alfa Laval Corporate AB Lukendichtung, anordnung für einen wärmetauscher und wärmetauscher mit solch einer anordnung
WO2017110730A1 (ja) * 2015-12-24 2017-06-29 Nok株式会社 ガスケット並びにその製造方法及び取り扱い方法
CN106370039A (zh) * 2016-08-26 2017-02-01 天津博泰换热设备有限公司 一种圆形换热器
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Publication number Publication date
DK3792577T3 (da) 2022-03-14
CN114391084A (zh) 2022-04-22
KR102654111B1 (ko) 2024-04-04
EP3792577A1 (de) 2021-03-17
KR20220056871A (ko) 2022-05-06
CN114391084B (zh) 2023-10-03
ES2907938T3 (es) 2022-04-27
WO2021048004A1 (en) 2021-03-18

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