EP3104110B1 - Échangeur de chaleur de type à plaques - Google Patents

Échangeur de chaleur de type à plaques Download PDF

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Publication number
EP3104110B1
EP3104110B1 EP15743716.1A EP15743716A EP3104110B1 EP 3104110 B1 EP3104110 B1 EP 3104110B1 EP 15743716 A EP15743716 A EP 15743716A EP 3104110 B1 EP3104110 B1 EP 3104110B1
Authority
EP
European Patent Office
Prior art keywords
fluid
heat exchange
heat exchanger
exchange plate
type heat
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
EP15743716.1A
Other languages
German (de)
English (en)
Other versions
EP3104110A4 (fr
EP3104110A1 (fr
Inventor
Wenjian WEI
Zhifeng Zhang
Yang Xu
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 Micro Channel Heat Exchanger Jiaxing Co Ltd
Original Assignee
Danfoss Micro Channel Heat Exchanger Jiaxing Co Ltd
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 Micro Channel Heat Exchanger Jiaxing Co Ltd filed Critical Danfoss Micro Channel Heat Exchanger Jiaxing Co Ltd
Publication of EP3104110A1 publication Critical patent/EP3104110A1/fr
Publication of EP3104110A4 publication Critical patent/EP3104110A4/fr
Application granted granted Critical
Publication of EP3104110B1 publication Critical patent/EP3104110B1/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
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
    • 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
    • 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
    • F28F3/086—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning having one or more openings therein forming tubular heat-exchange passages
    • 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
    • F28F9/02—Header boxes; End plates
    • F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
    • 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
    • F28F9/22—Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates
    • 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
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0061—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for phase-change applications
    • F28D2021/0064—Vaporizers, e.g. evaporators
    • 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
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0068—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for refrigerant cycles
    • F28D2021/0071—Evaporators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
    • F28F3/04—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
    • F28F3/042—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element
    • F28F3/044—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element the deformations being pontual, e.g. dimples

Definitions

  • the present invention relates to the fields of heating, ventilation and air conditioning, motor vehicles, cooling and transportation, and in particular relates to a plate type heat exchanger.
  • the invention relates in particular to a heat exchanger according to the preamble of claim 1.
  • Such heat exchangers are known from EP 2 172 730 A1 .
  • coolant entering a heat exchanger exists in a two-phase form, and due to application conditions and the complexity of two-phase flow, uniform distribution of coolant is very difficult to achieve.
  • an excessive amount of liquid coolant flows into some channels, while an excessive amount of gaseous coolant flows into other channels, and this has a major impact on the overall performance of the evaporator.
  • EP 2 172 730 A1 discloses a heat exchanger having the features of the preamble of claim 1.
  • the heat exchanger plate of this heat exchanger comprises a number of protrusions which are formed out of the respective plates. These protrusions separate the different flow paths.
  • CN 102 404 547 A discloses a heat exchanger having a plurality of heat exchanger plates in which grooves are provided, wherein the grooves form separate flow paths.
  • JP 2011-149667 A discloses a heat exchanger plate having a herringbone pattern.
  • WO 2006/110090 A1 shows a further plate heat exchanger having a number of heat exchange plates each having an inlet and an outlet and a single flow path between inlet and outlet.
  • SE 8 702 608 L shows a heat exchanger having heat exchange plates with a herringbone pattern.
  • the object of the present invention is to solve at least one aspect of the abovementioned problems and shortcomings in the prior art.
  • a plate type heat exchanger comprises multiple heat exchange plates which are stacked together, each heat exchange plate comprising a fluid inlet and a fluid outlet located at two opposite ends respectively in a longitudinal direction of the heat exchange plate, a separating part is provided on a top surface and/or a bottom surface of each heat exchange plate, such that a fluid coming from the fluid inlet is split into different flows at the fluid inlet, then flows into mutually independent fluid channel regions separated by the separating part and converges at the fluid outlet, and finally flows out of the fluid outlet, wherein the separating part comprises a separating strip, which splits fluid into different flows at the fluid inlet, and a longitudinal piece connected thereto.
  • the longitudinal piece is arranged in one of the following three ways:
  • the separating part comprises at least one separating strip extending from the fluid inlet to the vicinity of the fluid outlet.
  • the separating strip is arranged in one of the following three ways:
  • the separating strip is arranged to be in the angular range of -45° to 45° relative to a direction perpendicular to the longitudinal direction of the heat exchange plate, wherein the separating strip is in the shape of a straight line or bent.
  • the fluid inlet is at a top side at a left end of the top surface and/or bottom surface of the heat exchange plate
  • the fluid outlet is at a top side or bottom side at a right end of the surface of the heat exchange plate.
  • a fluid distributor is provided at the fluid inlet, the fluid distributor having a middle cavity for receiving a fluid from the fluid inlet, and at least two guide parts which pass through the fluid distributor and guide fluid out of the middle cavity.
  • the at least two guide parts comprise any one of a through-hole, a duct and a channel passing through a main body of the fluid distributor, or any combination thereof.
  • the ducts comprise tubes and/or capillary tubes which introduce fluid into different fluid channel regions respectively.
  • the channel is formed on the heat exchange plate integrally or separately.
  • the fluid distributor comprises an annular main body which the guide parts pass through from the outside.
  • the plate type heat exchanger also comprises end plates which are disposed on outer sides of the heat exchange plates and used for fixing the heat exchange plates in place.
  • a structural pattern for distributing fluid is provided on the surface of the heat exchange plate.
  • multiple regularly arranged recesses or protrusions are provided on the surface.
  • multiple alternately arranged channels and ridges in an inverted-V-shape are provided on the surface.
  • the main concept of the present invention is mainly based on the following aspects:
  • a plate type heat exchanger comprises multiple heat exchange plates 10 which are stacked together, and end plates (not shown) disposed on outer sides of the plate type heat exchanger, for fixing the heat exchange plates 10 in place.
  • the multiple heat exchange plates 10 which are stacked together are assembled by means of two end plates, e.g. by screw fastening, screw-thread connection or welded connection.
  • two adjacent heat exchange plates 10 are alternately stacked together, to form a fluid channel or a single fluid channel region for the passage of fluid.
  • any known method in the prior art could be used to fix the heat exchange plates of the present invention in place.
  • the heat exchange plate 10 comprises a fluid inlet 1 and a fluid outlet 2 located at two opposite ends in the longitudinal direction thereof (e.g. the top-left corner and top-right corner shown in the figure).
  • a separating part is disposed on a top surface (i.e. the surface shown in the figure) of the heat exchange plate 10 in this example; the separating part divides the surface of the heat exchange plate 10 into two independent fluid channel regions 3 and 4.
  • the separating part comprises a separating strip 8 which splits fluid flow at the fluid inlet 1, and a longitudinal piece 7 connected thereto.
  • fluid e.g.
  • coolant, as shown by the arrows in the figure) from the fluid inlet 1 is first split into different flows by the separating strip 8, then flows into the two fluid channel regions 3 and 4 respectively and converges at the fluid outlet 2, finally flowing out of the fluid outlet 2.
  • the fluid channel regions 3 and 4 are independent of each other; in other words, once the fluid has been split into different flows by the separating strip 8, the respective flows in the fluid channel regions 3 and 4 do not mix with each other; they only mix in the vicinity of the fluid outlet 2, and finally flow out of the fluid outlet 2.
  • the separating strip 8 is not necessarily in the shape of a straight line, and can be chosen to be in the angular range of -45° to 45° relative to a vertical direction of the heat exchange plate 10 (i.e. the up-down direction in the figure, perpendicular to the longitudinal direction of the heat exchange plate 10). To encourage fluid distribution, the separating strip 8 can be arranged to be bent or inclined slightly to the left as shown in the figure.
  • the fluid inlet 1 is disposed at a top side at the left end (e.g. the top-left corner) of the heat exchange plate 10; the fluid outlet 2 is disposed at a top side at the right end (e.g. the top-right corner) of the heat exchange plate 10.
  • ports 5 and 6 are also disposed on the heat exchange plate 10, in order to mate with an adjacent heat exchange plate; however, ports 5 and 6 play no role in or are not associated with fluid distribution on the top surface, shown in the figure, of the heat exchange plate 10, so are not described in detail below.
  • the separating strip 8 is generally connected to the longitudinal piece 7 in a sealed manner.
  • fluid is split into two branches at the fluid inlet 1.
  • the two branches are first of all inclined downwards slightly overall. Then one branch is guided rightwards through the fluid channel region 3; the other branch of fluid is guided towards the bottom left side from the fluid inlet 1 (e.g. through a region between the port 5 and a left side edge of the heat exchange plate 10), and is then guided rightwards to the fluid channel region 4.
  • the two branches converge at the fluid outlet 2, and flow out of the fluid outlet 2.
  • Fig. 1 shows the longitudinal piece 7 as being substantially parallel to the longitudinal direction of the heat exchange plate 10 (i.e. the left-right direction shown in Fig. 1 ), those skilled in the art could, as required, arrange it to be inclined by a predetermined angle relative to the longitudinal direction of the heat exchange plate 10 (e.g. within the angular range of -45° to 45° relative to a direction perpendicular to the longitudinal direction of the heat exchange plate, e.g. 30°), or to have a bent or meandering shape in the longitudinal direction of the heat exchange plate 10.
  • separating part could be likewise disposed on another surface of the heat exchange plate 10 (opposite the top surface described above, i.e. the bottom surface); the number of separating parts can be specifically set as required on the heat exchange plate 10, and is not limited to the scenario shown in the figure; the separating part may also be formed in another way, and is not limited to the structure shown in the figure.
  • the fluid inlet 1 is disposed at the top left corner of the heat exchange plate 10, while the fluid outlet 2 is disposed at a bottom side at the right end (e.g. the bottom right corner) of the heat exchange plate 10.
  • the position of the fluid outlet 2 is different from the scenario shown in Fig. 1 , therefore except for the direction of fluid flow (as shown by the arrow in Fig. 2 ) which is different from that shown in Fig. 1 , everything else is the same as the structure shown in Fig. 1 , and is not described in detail here.
  • separating strip 8 and longitudinal piece 7 there is no direct sealed connection between the separating strip 8 and the longitudinal piece 7; instead, separation of fluid is accomplished by means of a sealed edge of the port 5.
  • the separating strip 8 and longitudinal piece 7 may be connected in a sealed manner directly.
  • Fig. 3 shows another heat exchange plate 20 which is mated with or adjacent to the heat exchange plate 10 described above. It can be understood that in order to mate with the heat exchange plate 10, corresponding ports 25, 26 are disposed at the four corners respectively of the heat exchange plate 20; the ports 25, 26 are arranged such that fluid cannot be made to flow therethrough.
  • a fluid inlet 21 and a fluid outlet 22 are disposed in a middle position at two ends (left and right) thereof, respectively.
  • fluid from the second fluid inlet 21 is guided directly to the second fluid outlet 22 over the surface of the heat exchange plate 20; no separating part as described above is provided thereon.
  • those skilled in the art could provide a similar separating part on the heat exchange plate 20 as required, in accordance with the content disclosed above.
  • Fig. 4 shows an enlarged view of part of the heat exchange plate 10 shown in Fig. 1 .
  • most of the top surface of the heat exchange plate 10 is provided with a recessed structural pattern as shown in the figure, for helping to distribute fluid.
  • a structure of protrusions corresponding to the substantially hemispherical recesses described above will be correspondingly provided on the other surface (e.g. the bottom surface) of the heat exchange plate 10.
  • the form of the recessed pattern structure described above, as well as the distance between adjacent recesses and the size thereof, may be arranged as required.
  • the pattern structure of recesses 11 and protrusions described above could also be replaced with an inverted-V-shaped pattern of grooves and ridges, which is already known in the prior art.
  • the present invention could also be applied to a heat exchange plate with a dimpled pattern.
  • Fig. 5 shows another example of the heat exchange plate of the present invention.
  • the heat exchange plate 30 shown in Fig. 5 differs from the heat exchange plate 10 described above in that the heat exchange plate 30 is divided into three fluid channel regions 331, 332 and 333, starting from a fluid inlet 31, by means of separating strips 37 and 38 (i.e. two separating parts).
  • the separating strip 37 extends from the fluid inlet 31 at the top left corner to a region close to a fluid outlet 32 at the top right corner.
  • the other separating strip 38 passes the left side of a port 35 in a middle position at the left side from a fluid inlet 31, passes a port 35' at the bottom left corner, and then extends to a region between a port 36 in a middle position at the right side and a fluid outlet 33 at the bottom right corner.
  • fluid from the fluid inlet 31 is divided into three parts, which flow in the three fluid channel regions 331, 332 and 333.
  • multiple separating parts could also be disposed based on the same principle, to divide the heat exchange plate 30 into 4, 5 or an even greater number of fluid channel regions.
  • the separating strips 37 and 38 may be arranged to be substantially parallel to the longitudinal direction of the heat exchange plate 30 (i.e.
  • the number of fluid outlets 32 and 33 may be set to be 2 or 1 as required.
  • FIG. 6 shows another example of the heat exchange plate 40 of the present invention.
  • a separating strip 47 extends from a fluid inlet 41 at the top left corner of the heat exchange plate 40 to a region between a fluid outlet 42 at the top right corner and a port 46 at the bottom right corner.
  • fluid is split by a bent part 471 of the separating strip into two parts, which respectively flow along the arrows shown in the figure in two fluid channel regions 43 and 44 separated by the separating strip 47, finally converge and then flow out of the fluid outlet 42.
  • ports 45 and 46 for mating with an adjacent heat exchange plate are also provided.
  • Fig. 7 shows another example of the heat exchange plate 50 of the present invention.
  • Two separating strips 57 respectively extend from a fluid inlet 51 at the top left corner of the heat exchange plate 50 to a region between a fluid outlet 52 at the top right corner and a port 56 at the bottom right corner, but the two separating strips 57 are arranged to be separated by a predetermined distance.
  • fluid is split into three parts, which respectively flow in three fluid channel regions 53, 54 and 59 so formed, and finally flow out of the fluid outlet 52.
  • ports 55 and 56 for mating with an adjacent heat exchange plate are also provided.
  • the heat exchange plate is arranged to have at least two independent fluid channel regions whether by means of separating strips or longitudinal pieces, to improve the fluid distribution effect.
  • Figs. 1 - 7 all show the surface of the heat exchange plate to be provided with recesses or protrusions, the details of which will not be described again.
  • Figs. 8a - 8d each show an example of a fluid distributor 60 according to the present invention.
  • the fluid distributor 60 has a main body 61 and a middle cavity 62 located inside the main body 61, for receiving fluid.
  • the fluid distributor 60 also has at least two guide parts 63 and 64 which pass through the fluid distributor 60 and guide fluid out of the middle cavity 62.
  • the main body 61 is substantially annular or circularly annular, but could also be set to have various feasible shapes such as square, rectangular or elliptical.
  • the guide parts may be set to take the form of a through-hole 63 or a duct 64 which passes through the main body 61 from the outside to the middle cavity 62.
  • the duct 64 may be a tube or a capillary tube, and is used to guide fluid into different fluid channel regions.
  • Fig. 8a shows guide parts in the form of one through-hole 63 and one duct 64.
  • Fig. 8b shows guide parts in the form of one through-hole 63 and three ducts 64.
  • Fig. 8c shows guide parts in the form of one through-hole 63 and five ducts 64.
  • Fig. 8d shows guide parts in the form of three through-holes 63. It can be understood that the specific form of the guide parts can be selected as required, e.g. through-holes, ducts and channels, or any combination thereof.
  • Figs. 9a and 9b each show an enlarged view of part of a heat exchange plate, wherein different examples of the guide parts are shown.
  • Fig. 9a shows an example of fluid from a fluid inlet 71 being guided to different fluid channel regions by means of two guide parts, such as ducts 72 and 73. It is clear from Figs. 9a and 9b that both guide parts are arranged to extend substantially downwards or towards a bottom left side, in order to distribute fluid better.
  • Fig. 9b shows an example of fluid from a fluid inlet 81 being guided to different fluid channel regions by means of two guide parts, such as channels 82 and 83, wherein the channels 82 and 83 are integrally formed on the heat exchange plate. It can be understood that although Figs. 9a and 9b only show scenarios in which there are two guide parts, those skilled in the art would be able to understand scenarios in which multiple similar guide parts are provided.
  • Figs. 10a and 10b show a partial view and an enlarged view respectively of part of a heat exchange plate according to the present invention.
  • Fig. 10a shows an example of a fluid distributor with guide parts in the form of one through-hole 63 and one duct 64 being used in a heat exchange plate of the present invention.
  • the heat exchange plate is divided into two fluid channel regions 105 and 106 by means of a separating part 107.
  • fluid guided through the through-hole 63 i.e. the fluid on the left side in the figure
  • Fluid is guided to the fluid channel region 106 at the right side of the separating part 107 by means of a long tube or capillary tube 64 (i.e. the fluid on the right side in the figure), and returns upon encountering a right-side boundary of the separating part 107, and then flows upwards until it flows to a fluid outlet. It must be explained that upon encountering a boundary of the heat exchange plate, fluid will similarly return and flow towards the fluid outlet. As Fig. 10a shows, it is also possible to provide separating strips 108 and 109 close to the bottom on left and right sides of the heat exchange plate, to further enhance the fluid distribution effect.
  • the separating part 107 comprises a longitudinal piece or separating strip 104.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Claims (15)

  1. Échangeur thermique de type à plaques, comprenant de multiples plaques d'échange thermique (10, 30) qui sont empilées ensemble, chaque plaque d'échange thermique (10, 30) comprenant une entrée de fluide (1, 31) et une sortie de fluide (2, 32) respectivement situées à deux extrémités opposées dans une direction longitudinale de la plaque d'échange thermique (10, 30),
    une partie de séparation étant prévue sur une surface supérieure et/ou une surface inférieure de chaque plaque d'échange thermique (10, 30), de telle sorte qu'un fluide provenant de l'entrée de fluide (1, 31) soit divisé en différents écoulements au niveau de l'entrée de fluide (1, 31), puis s'écoule dans des régions formant canaux à fluide (3, 4 ; 331, 332, 333) mutuellement indépendantes, séparées par la partie de séparation, et converge au niveau de la sortie de fluide (2, 32), et s'écoule enfin vers l'extérieur par la sortie de fluide (2, 32), caractérisé en ce que la partie de séparation comprend une bande de séparation (8), qui divise le fluide en différents écoulements au niveau de l'entrée de fluide (1, 31), et une pièce longitudinale (7) raccordée à celle-ci.
  2. Échangeur thermique de type à plaques selon la revendication 1, caractérisé en ce que la pièce longitudinale (7) est disposée de l'une des trois façons suivantes :
    essentiellement parallèlement à la direction longitudinale de la plaque d'échange thermique (10, 30) ;
    inclinée par rapport à la direction longitudinale de la plaque d'échange thermique (10, 30) ;
    avec une forme courbe ou sinueuse dans la direction longitudinale de la plaque d'échange thermique (10, 30).
  3. Échangeur thermique de type à plaques selon la revendication 1, caractérisé en ce que la partie de séparation comprend au moins une bande de séparation (8 ; 37, 38 ; 47 ; 57, 58) s'étendant de l'entrée de fluide (1, 31) jusqu'à proximité de la sortie de fluide (2, 32).
  4. Échangeur thermique de type à plaques selon la revendication 3, caractérisé en ce que la bande de séparation (8 ; 37, 38 ; 47 ; 57, 58) est disposée de l'une des trois façons suivantes :
    essentiellement parallèlement à la direction longitudinale de la plaque d'échange thermique (10, 30) ;
    inclinée par rapport à la direction longitudinale de la plaque d'échange thermique (10, 30) ;
    avec une forme courbe ou sinueuse dans la direction longitudinale de la plaque d'échange thermique (10, 30).
  5. Échangeur thermique de type à plaques selon la revendication 1 ou 3, caractérisé en ce que au niveau de l'entrée de fluide, la bande de séparation est disposée de façon à se situer dans la plage angulaire de -45° à 45° par rapport à une direction perpendiculaire à la direction longitudinale de la plaque d'échange thermique (10, 30), la bande de séparation présentant une forme rectiligne ou courbe.
  6. Échangeur thermique de type à plaques selon l'une quelconque des revendications 1 à 5, caractérisé en ce que
    l'entrée de fluide (1, 31) se trouve au niveau d'un côté supérieur à une extrémité gauche de la surface supérieure et/ou de la surface inférieure de la plaque d'échange thermique (10, 30), et la sortie de fluide (2, 32) se trouve au niveau d'un côté supérieur ou d'un côté inférieur à une extrémité droite de la surface de la plaque d'échange thermique (10, 30).
  7. Échangeur thermique de type à plaques selon l'une quelconque des revendications 1 à 6, caractérisé en ce que
    un dispositif de répartition de fluide (60) est prévu au niveau de l'entrée de fluide (1, 31), le dispositif de répartition de fluide (60) comportant une cavité centrale (62) destinée à recevoir un fluide provenant de l'entrée de fluide, et au moins deux parties de guidage (63, 64) qui passent à travers le dispositif de répartition de fluide (60) et guident le fluide vers l'extérieur de la cavité centrale (62).
  8. Échangeur thermique de type à plaques selon la revendication 7, caractérisé en ce que les au moins deux parties de guidage (63, 64) comprennent l'un quelconque d'un trou traversant (63), d'un conduit (64) et d'un canal passant à travers un corps principal du dispositif de répartition de fluide (60), ou une combinaison de ceux-ci.
  9. Échangeur thermique de type à plaques selon la revendication 8, caractérisé en ce que les conduits (64) comprennent des tubes et/ou des tubes capillaires qui introduisent du fluide respectivement dans des régions formant canaux à fluide différentes.
  10. Échangeur thermique de type à plaques selon la revendication 8, caractérisé en ce que le canal est formé sur la plaque d'échange thermique (10, 30) de façon à faire partie intégrante ou être séparé de celle-ci.
  11. Échangeur thermique de type à plaques selon la revendication 8, caractérisé en ce que le dispositif de répartition de fluide (60) comprend un corps principal (61) annulaire à travers lequel passent les parties de guidage (63, 64) depuis l'extérieur.
  12. Échangeur thermique de type à plaques selon l'une quelconque des revendications 1 à 11, caractérisé en ce que
    il comprend en outre des plaques d'extrémité (20) qui sont disposées sur des côtés extérieurs des plaques d'échange thermique (10, 30) et servent à fixer les plaques d'échange thermique (10, 30) en position.
  13. Échangeur thermique de type à plaques selon l'une quelconque des revendications 1 à 12, caractérisé en ce que
    un motif structurel conçu à des fins de répartition de fluide est prévu sur la surface de la plaque d'échange thermique.
  14. Échangeur thermique de type à plaques selon la revendication 13, caractérisé en ce que de multiples renfoncements ou protubérances agencés de manière régulière sont prévus sur la surface.
  15. Échangeur thermique de type à plaques selon la revendication 13, caractérisé en ce que de multiples canaux et nervures agencés de manière alternée en forme de V à l'envers sont prévus sur la surface.
EP15743716.1A 2014-01-28 2015-01-28 Échangeur de chaleur de type à plaques Not-in-force EP3104110B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201410042349.1A CN103759474B (zh) 2014-01-28 2014-01-28 板式换热器
PCT/CN2015/071724 WO2015113496A1 (fr) 2014-01-28 2015-01-28 Échangeur de chaleur de type à plaques

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Publication Number Publication Date
EP3104110A1 EP3104110A1 (fr) 2016-12-14
EP3104110A4 EP3104110A4 (fr) 2017-09-27
EP3104110B1 true EP3104110B1 (fr) 2018-09-26

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US (1) US20160356560A1 (fr)
EP (1) EP3104110B1 (fr)
CN (1) CN103759474B (fr)
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Also Published As

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CN103759474A (zh) 2014-04-30
WO2015113496A1 (fr) 2015-08-06
EP3104110A4 (fr) 2017-09-27
EP3104110A1 (fr) 2016-12-14
CN103759474B (zh) 2018-01-02
US20160356560A1 (en) 2016-12-08

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