EP0165179B1 - Plattenwärmetauscher und Platte zu dessen Herstellung - Google Patents

Plattenwärmetauscher und Platte zu dessen Herstellung Download PDF

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Publication number
EP0165179B1
EP0165179B1 EP85420064A EP85420064A EP0165179B1 EP 0165179 B1 EP0165179 B1 EP 0165179B1 EP 85420064 A EP85420064 A EP 85420064A EP 85420064 A EP85420064 A EP 85420064A EP 0165179 B1 EP0165179 B1 EP 0165179B1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
fact
plates
channels
edges
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.)
Expired
Application number
EP85420064A
Other languages
English (en)
French (fr)
Other versions
EP0165179A1 (de
Inventor
Lucien Fayolle
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.)
Vicarb SA
Original Assignee
Vicarb SA
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 Vicarb SA filed Critical Vicarb SA
Publication of EP0165179A1 publication Critical patent/EP0165179A1/de
Application granted granted Critical
Publication of EP0165179B1 publication Critical patent/EP0165179B1/de
Expired legal-status Critical Current

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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
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/001—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core
    • 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
    • F28D9/0037—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 conduits for the other heat-exchange medium also being formed by paired plates touching each other
    • 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
    • F28F3/025—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being corrugated, plate-like 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
    • 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
    • F28F3/046—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 linear, e.g. corrugations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2275/00—Fastening; Joining
    • F28F2275/06—Fastening; Joining 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S165/00—Heat exchange
    • Y10S165/355—Heat exchange having separate flow passage for two distinct fluids
    • Y10S165/356—Plural plates forming a stack providing flow passages therein
    • Y10S165/373—Adjacent heat exchange plates having joined bent edge flanges for forming flow channels therebetween
    • Y10S165/382—Overlapping flanges

Definitions

  • the present invention relates to a new type of plate heat exchanger; it also relates to the plates making it possible to produce such an exchanger.
  • the heat exchangers developed to date can be classified into two main categories, namely tubular exchangers and plate exchangers.
  • the plate exchangers are constituted by stacking a determined number of ribbed plates, of the same type, which are clamped between two bottoms by means of tie rods.
  • the plates have openings in their corners which delimit inlet and outlet passages for the two fluids in the stack.
  • the alternation of fluids in the successive spaces between the plates is obtained by means of appropriately shaped seals.
  • this type of modular exchanger has the drawback of being made of graphite, of having a low mechanical resistance and a temperature resistance limited to 200 ° C.
  • the exchanger according to the invention with independent fluid circuits. is of the type consisting of modular elements in the form of blocks kept juxtaposed inside an enclosure defining independent chambers for each of the fluids, each block having superimposed channels opening alternately into lateral chambers for circulation of fluids, these channels spanning the entire width of the block and being defined by. the space between stamped plates assembled by welding having edges turned alternately in opposite directions relative to the plane of the plate.
  • the exchanger according to the invention is characterized in that said edges form, at each bevelled edge, a vertical edge allowing attachment to the side walls defining fluid circulation chambers, said plates being associated with each other by butt welding of the ends of the turned edges and the edges of the vertical edges extending the turned edges.
  • the attachment to the side walls can be done either directly by welding the vertical edges to said walls, the chambers formed then being inseparable and the heat exchanger thus obtained fully welded, or indirectly by fixing the vertical edges in uprights on which said walls are fixed which in this case are preferably mounted removably.
  • the channels are of parallelepipedal shape and are formed from stamped plates which are then welded to form a monobloc parallelepiped whose number of channels is adapted to the technical problems to be solved.
  • the space between two plates and which therefore forms the channel can be either entirely free, or possibly include reinforcing elements such as connecting pins.
  • Profiled intermediate plates can also be introduced inside the channels, these plates making it possible not only to act as a stiffening element increasing the resistance of the exchanger but also to control the turbulence of the fluids and their loss load as well as improving the heat exchange coefficient.
  • the plates can be directly stamped with one or more particular profiles of grooves eliminating the intermediate plates.
  • the stamping profile simultaneously ensures mechanical strength by numerous support points and the distribution of fluids.
  • the stamped plates defining the channels have a configuration such that they have a vertical edge in each angle. This edge makes it possible to fix the plates directly either in uprights on which the lateral walls themselves are fixed, walls preferably mounted in a removable manner, or directly by welding against the walls.
  • the walls channel the fluids and define the number of passages, that is to say the number of channels used at each passage to obtain the maximum speed compatible with the pressure drops.
  • the height of the channels (spacing between two consecutive plates) will be determined according to the operating conditions (5 mm, 10 mm, 15 mm, 20 mm ).
  • An exchanger can be made up either entirely of channels of uniform height, or, possibly, of channels of different heights on each circuit.
  • the exchanger according to the invention is of the type consisting of modular elements held juxtaposed inside an enclosure, elements whose structure in accordance to the invention will be seen in more detail in the following description.
  • These modular elements designated by the general reference (M) will be kept juxtaposed by means of four rigid uprights (1, 2, 3, 4).
  • These rigid uprights support walls (5, 6, 7, 8) preferably mounted removably, for example by means of screws on said uprights.
  • the walls form in association with the uprights of the independent chambers (9, 10, 11, 12) for each of the fluids.
  • Supply (13, 14) and outlet (15, 16) conduits for each of the fluids are provided in the walls.
  • the fluids can flow either in the same direction or in the opposite direction.
  • the walls (5, 6, 7, 8) define with the blocks chambers of parallelepiped shape but it is obvious that this is not limiting.
  • Funds (17, 18) are arranged at each end and hold the elementary blocks against each other. These bottoms are tightly mounted on the walls.
  • the blocks (M) inside which the fluids circulate are characterized, as can be seen more clearly from FIG. 3, by the fact that they have superimposed channels (18, 19) opening out alternately in the side chambers and extending over the entire width of each block.
  • These channels are of rectangular shape and are formed by the space between stamped plates, designated by the general reference (20), produced in the manner illustrated by Figures 1 and 2.
  • Each elementary plate (20) whose dimensions are a function of the type of exchanger to be produced, is first cut according to the configuration shown in FIG. 1, so as to have four sides (21, 22, 23, 24), each angle comprising an overhanging tongue (25, 26, 27, 28).
  • the plates are made from all stampable and weldable metals, such as, for example, steel, stainless steel, titanium, zirconium ...
  • the plate thus produced is then stamped in the manner illustrated in FIG. 2, so that the edges are turned alternately in opposite directions by 90 ° and that the tongues form, in each angle, a vertical edge.
  • a block in accordance with the invention it suffices which, as is apparent from FIG. 3, superimpose elementary plates thus stamped and weld them together along the turned edges and vertical edges.
  • the actual block is obtained by inserting the edges (25) for example, in a rigid upright (3) for the edge (25).
  • a weld bead (29) is made to seal the upright.
  • connection pins between two consecutive plates inside the channels may be provided.
  • the surface of the plates defining the fluid circulation channels can be smooth, it can be envisaged to produce stamped plates with one or more particular profiles of grooves.
  • the stamping profile simultaneously ensures mechanical strength by numerous support points and the distribution of fluids.
  • a profile it is possible for example to have a profile in the form of undulations arranged at an angle, for example at 45 ° with respect to the sides of the plates. It is understood that it is thus possible to modify the distribution of the fluids as a function of the way in which the plates are superimposed with respect to each other.
  • the exchangers can be used both vertically and horizontally and can receive gases or liquids and find applications in many fields (chemistry, heating of habitats, agrochemistry ).
  • the removable walls can be replaced by walls welded, if necessary, directly to the edges of the plates; the exchanger can be in any form such as cylindrical or rectangular and be assembled by identical or different modules.

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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 (10)

1. Wärmetauscher mit voneinander unabhängigen Fluidkreisläufen, der durch modulare Elemente M in Gestalt von Blöcken gebildet wird, die im Inneren einer Einfassung einander gegenüberstehen und voneinander unabhängige Kammern für jedes der Fluide bilden, wobei jeder Block überlappende Kanäle (18, 19) aufweist, die abwechselnd in sich längs erstreckende, durch Längswände (5, 6, 7, 8) definierte Kammern (9, 10, 11, 12) für die Zirkulation der Fluide münden, wobei sich diese Kanäle über die gesamte Breite des Blocks erstrecken und die Kanäle (18, 19) durch den Zwischenraum zwischen gekümpelten, miteinander verschweißten Platten definiert werden, die abwechselnd gegenläufig um 90° zur Ebene der Platten umgebogene Randstreifen (21, 22, 23, 24) aufweisen, dadurch gekennzeichnet, daß die Randbereiche in jeder Ecke einen vertikalen Winkel (25, 26, 27, 28) in Verlängerung der umgebogenen Randbereiche umfassen, die der Befestigung an den Längswänden (5, 6, 7, 8) dienen, welche die Kammern (9, 10, 11, 12) für die Zirkulation der Fluide definieren, und daß die Verschweißung der Platten dadurch bewirkt wird, daß Ränder der umgebogenen Randbereiche (21, 22, 23, 24) ebenso wie Randbereiche der vertikalen Winkel (25, 26, 27, 28) auf Stoß miteinander verschweißt werden.
2. Wärmetauscher nach Anspruch 1, dadurch gekennzeichnet, daß die vertikalen Winkel (25, 26, 27, 28) direkt auf Längswände geschweißt sind.
3. Wärmetauscher nach Anspruch 1, dadurch gekennzeichnet, daß die vertikalen Winkel (25, 26, 27, 28) an Ständern (1, 2, 3, 4) befestigt sind, an denen die Längswände (5, 6, 7, 8) befestigt sind.
4. Wärmetauscher nach Anspruch 1, dadurch gekennzeichnet, daß die Kanäle (18, 19) von parallelepipedischer Gestalt sind.
5. Wärmetauscher nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß Verstärkungselemente im Inneren eines jeden Kanals angeordnet sind.
6. Wärmetauscher nach Anspruch 5, dadurch gekennzeichnet, daß die Verstärkungselemente durch voneinander beabstandete Zacken gebildet sind.
7. Wärmetauscher nach Anspruch 5, dadurch gekennzeichnet, daß die Verstärkungselemente durch profilierte, lösbare Zwischenplatten gebildet sind, wobei die Platten eine Regelung der Turbulenz der Fluide und ihres Ladungsverlustes gestatten und den Wärmetauschkoeffizient verbessern.
8. Wärmetauscher nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die die überlappenden Kanäle (18 und 19) definierenden Platten eben sind.
9. Wärmetauscher nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die die überlagerten Kanäle (18 und 19) definierenden Platten in einer Weise profiliert sind, daß Rillen ausgebildet sind, die aufeinander aufliegen und gleichzeitig die mechanische Stabilität wie auch die Verteilung der Fluide gewährleisten.
10. Platte zum Erstellen eines Wärmetauschers nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß sie durch Kümpeln erstellt wurde und daß sie abwechselnd gegenläufig um 90° umgebogene Randbereiche (21, 22, 23, 24) aufweist, die in jeder Ecke einen vertikalen Winkel (25, 26, 27, 28) ausbilden, die es gestatten, sie an Längswänden (5, 6, 7, 8) zu befestigen, welche Zirkulationskammern der Fluide (9, 10, 11, 12) definieren, sei es durch direktes Verschweißen, sei es in Ständern (1, 2, 3, 4), an den die genannten Längswände befestigt sind.
EP85420064A 1984-04-19 1985-04-04 Plattenwärmetauscher und Platte zu dessen Herstellung Expired EP0165179B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8406442A FR2562997B1 (fr) 1984-04-19 1984-04-19 Echangeurs de chaleur a plaques et nouveau type de plaques permettant l'obtention de tels echangeurs
FR8406442 1984-04-19

Publications (2)

Publication Number Publication Date
EP0165179A1 EP0165179A1 (de) 1985-12-18
EP0165179B1 true EP0165179B1 (de) 1987-09-30

Family

ID=9303435

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85420064A Expired EP0165179B1 (de) 1984-04-19 1985-04-04 Plattenwärmetauscher und Platte zu dessen Herstellung

Country Status (5)

Country Link
US (1) US4719970A (de)
EP (1) EP0165179B1 (de)
JP (1) JPS60238697A (de)
DE (1) DE3560735D1 (de)
FR (1) FR2562997B1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3086742A1 (fr) 2018-10-01 2020-04-03 Heurtey Petrochem S.A. Plaque pour un echangeur de chaleur a plaques
WO2021190879A1 (fr) 2020-03-26 2021-09-30 Axens Échangeur de chaleur à plaques
US11493285B2 (en) 2017-09-15 2022-11-08 Alfa Laval Corporate Ab Baffle support and baffle
US11592245B2 (en) 2017-09-15 2023-02-28 Alfa Laval Corporate Ab Baffle

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FR3052549B1 (fr) 2016-06-10 2019-10-11 Hutchinson Echangeur stockeur d'energie thermique
FR3052548B1 (fr) 2016-06-10 2019-09-06 Hutchinson Procede d'echange et de conditionnement d'un echangeur thermique
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Publication number Priority date Publication date Assignee Title
US11493285B2 (en) 2017-09-15 2022-11-08 Alfa Laval Corporate Ab Baffle support and baffle
US11592245B2 (en) 2017-09-15 2023-02-28 Alfa Laval Corporate Ab Baffle
FR3086742A1 (fr) 2018-10-01 2020-04-03 Heurtey Petrochem S.A. Plaque pour un echangeur de chaleur a plaques
WO2021190879A1 (fr) 2020-03-26 2021-09-30 Axens Échangeur de chaleur à plaques
FR3108714A1 (fr) 2020-03-26 2021-10-01 Axens Echangeur de chaleur à plaques

Also Published As

Publication number Publication date
FR2562997A1 (fr) 1985-10-18
JPS60238697A (ja) 1985-11-27
US4719970A (en) 1988-01-19
FR2562997B1 (fr) 1988-09-23
DE3560735D1 (en) 1987-11-05
EP0165179A1 (de) 1985-12-18
JPH0514196B2 (de) 1993-02-24

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