EP2508832B1 - échangeur de chaleur à plaques en matrière plastique - Google Patents

échangeur de chaleur à plaques en matrière plastique Download PDF

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Publication number
EP2508832B1
EP2508832B1 EP12160825.1A EP12160825A EP2508832B1 EP 2508832 B1 EP2508832 B1 EP 2508832B1 EP 12160825 A EP12160825 A EP 12160825A EP 2508832 B1 EP2508832 B1 EP 2508832B1
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EP
European Patent Office
Prior art keywords
heat exchanger
plate
exchanger according
fluid
plate 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
EP12160825.1A
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German (de)
English (en)
Other versions
EP2508832A1 (fr
Inventor
Michael Rehberg
Peter Rehberg
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Individual
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Individual
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Publication date
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Publication of EP2508832A1 publication Critical patent/EP2508832A1/fr
Application granted granted Critical
Publication of EP2508832B1 publication Critical patent/EP2508832B1/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
    • 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
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/02—Constructions of heat-exchange apparatus characterised by the selection of particular materials of carbon, e.g. graphite
    • 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
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/0219—Arrangements for sealing end plates into casing or header box; Header box sub-elements
    • F28F9/0221—Header boxes or end plates formed by stacked elements
    • 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
    • F28F9/027—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits in the form of distribution pipes
    • F28F9/0273—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits in the form of distribution pipes with multiple holes

Definitions

  • the invention relates to a plastic plate heat exchanger which comprises a plate stack covered with a front plate and a back plate and sealingly interconnected at the edge, profiled heat transfer plates to form alternately provided for a first fluid and a second fluid flow channels, wherein the heat transfer plates through holes for connection having provided for the respective same fluid flow channels, according to the preamble of claim 1.
  • DE 20 2010007 615 U1 discloses such a plate heat exchanger.
  • Heat exchangers made of plastic are characterized by high corrosion resistance, simple and cost-effective production and low weight, but have due to the material used and because of the thickness to achieve sufficient strength greater thermal conductivity or due to the low strength only at low pressures operate.
  • the Indian DE 20 2010 007 615 U1 plastic plate heat exchanger described comprises stacked, manufactured by injection molding heat transfer plates with through holes and a front and a back plate with connecting pipes.
  • the heat transfer plates have on the front and on the back in each case a differently or mirror-symmetrically designed, designed as a flat depression with flow barriers flow channel.
  • the one at the flat edges of a low strength having Heat transfer plates welded or glued plate heat exchangers can only be operated at low pressures.
  • the heat transfer due to the required large thickness of the existing plastic heat transfer plates is comparatively low.
  • plastic heat exchangers are in the US 7004237 B2 , of the EP 0203213 A1 , of the WO 2009 123519 A1 and the EP 2306133 A1 described.
  • the invention has for its object to provide a plate heat exchanger made of plastic, which can be easily and inexpensively manufactured and ensures high pressure resistance and high thermal conductivity.
  • the object is achieved with a trained according to the features of claim 1 plate heat exchanger.
  • the basic idea of the invention is the incorporation of continuous carbon fibers in the existing plastic heat transfer plates, so that on the one hand because of the resulting thin-walled and on the other hand, the thermal conductivity of the continuous carbon heat transfer plates with high thermal conductivity are available.
  • the identically formed heat transfer plates are with in only one direction oblique to the longitudinal axis extending - an upper and a lower plate level defining - wave crests and troughs as well as a peripheral edge of the plate joint and from this to the plate interior out subsequent circumferential - in relation to the plane of the plate - horizontal connecting region each stacked about a transverse axis plate stacked and fixed to the abutting connecting beads and horizontal connecting portions and at the contact surfaces of crossing peaks and valleys and the abutting high - forming the upper plate level - edge portions of the through holes fixed and sealingly welded or glued together.
  • the simple design and inexpensive manufactured plate heat exchanger is characterized by a high pressure resistance and high heat transfer performance.
  • the heat transfer plates are electrically conductive due to the embedded in the plastic continuous carbon fibers, so that individual heat transfer plates for additional heating of the fluid can be heated by applying a voltage.
  • the connecting beads and the wave crests have a trapezoidal cross-section to achieve a large-area sealing or connecting region between adjacent heat transfer plates.
  • a further embodiment of the invention is at the fluid inlet and outlet of existing between adjacent heat transfer plates flow channel in a low-lying - the lower plate level forming - edge region of opposite through holes arranged the two edge areas mutually supporting and firmly connecting fluid distribution element.
  • the fluid distribution element is designed as a support ring or tie rods and has nozzle-shaped passages for uniform fluid distribution.
  • the wave crests and the troughs for generating a different volume of fluid in adjacent flow channels are formed differently wide.
  • the plate stack covered with the front plate and the back plate is wound in the longitudinal and / or transverse direction with a bandage of fiber-impregnated fibers to further increase the compressive rigidity of the plate heat exchanger.
  • the front and the back plate are convexly curved on the outside in this embodiment.
  • On the outer surfaces of the front and the rear plate may also be formed stiffening ribs.
  • a Cyprusisoliermaterial is applied to the outer surface of the plate heat exchanger.
  • the plastic matrix is partially admixed with carbon nanotubes (CNTs) or graphene.
  • the heat transfer plates made of a thermoplastic material and are joined together by friction welding.
  • the connection is made by gluing.
  • the plate heat exchanger 1 in the present exemplary embodiment comprises seven identical heat transfer plates 2, a front plate 3, a back plate 4 and four connecting pieces 5 adjoining openings 3 'in the front plate 3 for supplying and discharging a heat-emitting and a heat-absorbing (first and second) fluid.
  • the heat transfer plates 2 are preferably made of a continuous fiber reinforced thermoplastic, wherein to increase the - thermal and electrical - conductivity in the plastic matrix carbon nanotubes (CNT) or graphene (a carbon with two-dimensional structure) can be dispersed.
  • CNT plastic matrix carbon nanotubes
  • graphene a carbon with two-dimensional structure
  • the plastic heat transfer plates 2 are electrically conductive by the integrated carbon fibers, so that individual heat transfer plates 2 can be heated by applying a voltage and thus a targeted additional heating of the fluid is possible. Due to the stiffening with continuous carbon fibers also low plate wall thicknesses are possible, so that the heat transfer can also be improved due to this Tatsche.
  • the front plate 3 and the back plate 4 which are highly loaded to the ambient pressure, can be additionally stiffened by molded ribs (not shown) and are convexly curved on the outer surfaces.
  • a longitudinally extending and a transversely extending bandage 6 made of plastic impregnated continuous carbon fibers, so that the existing plastic heat exchanger can be operated with an even higher pressure. Due to the curvature of the front and the rear plate internal pressure forces of the heat exchanger are converted into longitudinal forces in the outer contour and recorded there by longitudinally highly resilient fiber bands. It is also possible, but not shown in the drawing, to overmold the plate heat exchanger 1 with a heat insulating material.
  • the fiber-reinforced heat transfer plates 2 are wave-shaped in only one direction (here at an angle of 45 ° to the longitudinal direction, any angle between 0 and ⁇ 90 ° is possible.)
  • the wave crests 7 and wave troughs 8 have the shape of a trapezoid and are the same (However, it is also conceivable to form the wave crests and the wave troughs of different sizes so that different volumes can be transported in adjacent flow channels of the plate heat exchanger 1, for example in the case of media having different viscosities.)
  • the heat transfer plates 2 have one in the outer edge region encircling trapezoidal connecting bead 9 and an outwardly adjoining horizontal edge portion 10 and an inwardly adjoining circumferential, horizontal connecting portion 15.
  • the previously described - identically formed - heat transfer plates 2 are - each rotated about the transverse axis by 180 ° - stacked on top of each other and at the contact surfaces between two plates, that is, to the abutting horizontal ridge 14 of the trapezoidal circumferential connecting beads 9 and on to the Seams 9 to the interior of the plates towards adjacent circumferential horizontal connecting portions 15, at the emanating from the through holes 11 abutting edge portions 11 "and the intersecting contact surfaces 16 of the trapezoidal wave crests 7 by friction welding firmly and sealingly connected to each other.A further connection between the plates also in the area of the fluid distribution elements 12. In addition to the friction welding, the connection and sealing can also take place by means of other welding methods or-in the case of heat transfer plates made of thermosetting plastic-by gluing.
  • the above-described plate heat exchanger made of plastic is characterized by the structural and material-side design of the thin, highly thermally conductive and high-strength as well as on several surface sections firmly and sealingly interconnected heat transfer plates by a high pressure resistance and heat transfer performance.
  • the compressive strength is increased by the wrapped around the curved front and back plate bandages of plastic-impregnated continuous fibers.
  • the production of the formed in a single form heat transfer plates is carried out by a combined process of forming the thermoplastic fiber-reinforced plastic plate and molding of any required reinforcing or functional elements.
  • the production of the plates and the installation of the plate heat exchanger is simple and inexpensive.

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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 (11)

  1. Un échangeur de chaleur à plaques en matière plastique, comprenant une pile à plaques couverte par une plaque avant (3) et une plaque arrière (4) et fabriquée par des plaques (2) de transmission de chaleur profilées et reliées l'une à l'autre de manière étanchée à une section (10) bordière périphérique pour former des canaux d'écoulement prévus de manière alternante pour un premier fluide et un second fluide, les plaques (2) de transmission de chaleur ayant respectivement deux ouvertures (11) de passage formées dans un niveau (11', 11") supérieur et inférieur de la plaque pour connecter les canaux d'écoulement prévus respectivement pour le même fluide, ayant des crêtes (7) des vagues et des creux (8) des vagues définissant le niveau inférieur et supérieur de la plaque et passant seulement en une direction de façon penchée vers l'axe longitudinale, caractérisé en ce que les plaques de transmission de chaleur sont des plaques (2) de transmission de chaleur formées de manière identique et ayant une conductibilité thermique élevée par l'intégration des fibres de carbone et des parois minces et étant raidies par des fibres de carbone continus et ayant une moulure (9) de liaison tournant autour la section (10) bordière au niveau (11") supérieur de la plaque et une région (15) de liaison périphérique se rattachant de celle-ci jusqu'à l'intérieur de la plaque et étant horizontale par rapport au plan de la plaque, et étant empilées les unes sur les autres respectivement tournées autour un axe transversal de la plaque et étant soudées ou collées l'une à l'autre de manière fixe et étanchée aux moulures (9) de liaison et régions (15) de liaison horizontales se touchant et aux surf aces (16) de contact des crêt es (7) des vagues se croisant et des régions bordières des ouvertures (11) de passage surélevées au niveau (11") de la plaque supérieur se touchant.
  2. L'échangeur de chaleur à plaques selon la revendication 1, caractérisé en ce que les moulures (9) de liaison et les crêtes (7) des vagues ont une section transversale trapézoïdale pour obtenir une région d'étanchement ou de liaison vaste entre des plaques de t ransmi ssi on de chaleur adjacentes.
  3. L'échangeur de chaleur à plaques selon la revendication 1, caractérisé en ce qu'un élément (12) de distribution du fluide connectant de manière fixe et appuyant mutuellement les deux régions bordières est arrangé à l'entrée et au départ du fluide du canal d'écoulement existant entre des plaques (2) de transmission de chaleur adjacentes dans une région bordière (11') inférieure d'ouvertures (11) de passage opposées.
  4. L'échangeur de chaleur à plaques selon la revendication 3, caractérisé en ce que l'élément (12) de distribution du fluide est formé en bague d'appui et a des passages (13) en forme de buse pour une distribution régulière du fluide.
  5. L'échangeur de chaleur à plaques selon une des revendications 1 à 4, caractérisé en ce que les crêtes (7) des vagues et les creux (8) des vagues sont formés avec une largeur différente pour générer un volume du fluide différent dans des canaux d'écoulement adjacents.
  6. L'échangeur de chaleur à plaques selon une des revendications 1 à 4, caractérisé par un bandage (6) en fibres imprégnés par plastique entourant la pile des plaques avec les plaques avant et arrière (3, 4) dans la direction longitudinale et/ ou transversale.
  7. L'échangeur de chaleur à plaques selon la revendication 5, caractérisé en ce que les plaques avant et arrière (3, 4) sont formées à la face externe à courbure convexe.
  8. L'échangeur de chaleur à plaques selon une des revendications précédentes, caractérisé par un matériau d'isolation thermique qui est arrangé à sa surface extérieure.
  9. L'échangeur de chaleur à plaques selon une des revendications précédentes, caractérisé par des nervures de raidissement arrangées aux surfaces extérieures des plaques avant et arrière (3, 4).
  10. L'échangeur de chaleur à plaques selon la revendication 1, caractérisé en ce que la matrice de plastique est prévue par des nanotubes de carbones (CNT) ou graphène.
  11. L'échangeur de chaleur à plaques selon une des revendications précédentes, caractérisé en ce que les plaques (2) de transmission de chaleur sont électriquement conductrices et peuvent être chauffées par application d'une tension pour chauffer le fluide.
EP12160825.1A 2011-04-05 2012-03-22 échangeur de chaleur à plaques en matrière plastique Not-in-force EP2508832B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102011001818A DE102011001818A1 (de) 2011-04-05 2011-04-05 Plattenwärmeübertrager aus Kunststoff

Publications (2)

Publication Number Publication Date
EP2508832A1 EP2508832A1 (fr) 2012-10-10
EP2508832B1 true EP2508832B1 (fr) 2015-06-17

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EP12160825.1A Not-in-force EP2508832B1 (fr) 2011-04-05 2012-03-22 échangeur de chaleur à plaques en matrière plastique

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EP (1) EP2508832B1 (fr)
DE (1) DE102011001818A1 (fr)

Families Citing this family (14)

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DE102013204180B4 (de) 2013-03-12 2021-07-08 Robert Bosch Gmbh Einhausung zum Aufnehmen eines Zellpakets, Batterie, Verfahren zum Herstellen einer Batterie und Verfahren zum Herstellen eines faserverstärkten Kunststoffbauteils für eine Einhausung einer Batterie
FR3028515B1 (fr) * 2014-11-14 2018-01-12 Thales Structure composite comportant une resine chargee avec des feuillets plans de graphene a conductivite thermique et conductivite electrique renforcees, notamment pour satellite
US20160209119A1 (en) * 2015-01-20 2016-07-21 Energy & Environmental Research Center Foundation Polymer film heat exchanger with integral fluid distribution manifolds and method
DE102015208277A1 (de) 2015-05-05 2016-11-10 Robert Bosch Gmbh Elektrische Maschine mit über einen Wald von Kohlenstoffnanoröhren gekühltem Rotor
FR3041422B1 (fr) * 2015-09-17 2017-12-01 Novares France Dispositif pour moteur comprenant un carter d’huile et un echangeur thermique
SE542049C2 (en) 2016-04-06 2020-02-18 Alfa Laval Corp Ab A heat exchanger plate, a plate heat exchanger, and a method of making a plate heat exchanger
FR3051837B1 (fr) * 2016-05-27 2018-05-18 Novares France Repartiteur d’air et vehicule comprenant ce repartiteur d’air
FR3057655B1 (fr) 2016-10-18 2018-12-07 Novares France Echangeur thermique integre dans un repartiteur
CN107289810B (zh) * 2017-07-20 2024-03-22 天津宝坻紫荆科技有限公司 一种板式换热型石墨烯电采暖器用换热板片
FR3091581B1 (fr) * 2019-01-04 2021-01-29 Christian Hug Plaques en matériau composite formant échangeur de chaleur
CN110296621A (zh) * 2019-06-28 2019-10-01 河海大学常州校区 一种抗积垢板式换热器
CN110296620A (zh) * 2019-06-28 2019-10-01 河海大学常州校区 一种抗积垢板式换热器
SE2150186A1 (en) * 2021-02-22 2022-08-23 Swep Int Ab A brazed plate heat exchanger
CN115790217B (zh) * 2022-12-23 2023-09-12 宁波连通设备集团有限公司 一种塑料板模块化串并联组合式热交换器

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EP0203213B1 (fr) * 1985-05-29 1988-08-10 SIGRI GmbH Procédé pour la fabrication d'un échangeur de chaleur à plaques
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Publication number Publication date
DE102011001818A1 (de) 2012-10-11
EP2508832A1 (fr) 2012-10-10

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