EP1065462A1 - Echangeur de chaleur à plaques, notamment réacteur à plaques - Google Patents

Echangeur de chaleur à plaques, notamment réacteur à plaques Download PDF

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Publication number
EP1065462A1
EP1065462A1 EP00112563A EP00112563A EP1065462A1 EP 1065462 A1 EP1065462 A1 EP 1065462A1 EP 00112563 A EP00112563 A EP 00112563A EP 00112563 A EP00112563 A EP 00112563A EP 1065462 A1 EP1065462 A1 EP 1065462A1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
plate
plates
exchanger plates
inlet
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.)
Withdrawn
Application number
EP00112563A
Other languages
German (de)
English (en)
Inventor
Daniel Borst
Dietmar Heil
Bruno Motzet
Konrad Dr. Schwab
Alois Tischler
Marc Weisser
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.)
Mercedes Benz Fuel Cell GmbH
Original Assignee
Xcellsis AG
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 Xcellsis AG filed Critical Xcellsis AG
Publication of EP1065462A1 publication Critical patent/EP1065462A1/fr
Withdrawn legal-status Critical Current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
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/08—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning
    • F28F3/083—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning capable of being taken apart
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/0031—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other
    • F28D9/0043—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another
    • F28D9/005—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another the plates having openings therein for both heat-exchange media
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • 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

Definitions

  • the present invention relates to a plate heat exchanger, in particular a plate reactor, according to the preamble of the claim 1.
  • Conventional plate heat exchangers have one Number of heat exchanger plates arranged one above the other. For The supply and removal of the corresponding heat exchange media are for each of the heat exchange media provided inlet and outlet channels, which by the stacked heat exchanger plates extend, and with primary or secondary Flow channels between the heat exchanger plates communicate.
  • the heat exchanger plates and the inlet or Outlet channels are designed in such a way that the primary side and the secondary-side flow channels not with each other communicate.
  • Conventional heat exchanger plates have a rectangular shape, being used to form the inlet and outlet channels appropriate holes are provided in the plates which are when the plates are arranged one above the other swear.
  • To separate the primary and secondary sides Flow channels are all heat exchanger plates, in particular circumferential, connected to each other. Furthermore, the Base area of the available for the heat exchange media Spaces given by the plate dimensions.
  • a plate heat exchanger as described above is for example known from WO 91/16589.
  • the object of the invention is to create a plate heat exchanger, with the thermal stresses occurring in a simple manner can be reduced or compensated.
  • a plate heat exchanger is now created, which is essential compared to conventional solutions lower thermal stresses occur.
  • the heat transfer medium is dispensed with, and this heat exchange medium in the secondary flow channels is introduced is a spatial proximity of inlet channels, which is a very cold or a very hot heat exchanger medium feed, avoided.
  • the inlet channel of the primary-side flow channels is expediently in the area of the central axis of the plate heat exchanger in the main flow direction of the first heat exchange medium arranged at a first end of the plate heat exchanger, the two outlet channels of the primary-side flow channels symmetrical with respect to the other end of the plate heat exchanger the central axis are arranged.
  • this measure is an essentially symmetrical or Y-shaped flow the primary flow channels of the plate heat exchanger realizable. As a result, the thermal stress on the individual heat exchanger plates of the plate heat exchanger can be reduced.
  • the heat exchanger plates are expediently in the region of Inlet and outlet channels with a conventional one rectangular heat exchanger plates reduced footprint. That is, the edges of the individual heat exchanger plates, which traditionally used to form a rectangular Plate can run perpendicular to each other in the area of the inlet channel converge. Between the symmetrical An indentation can be formed around the central axis the heat exchanger plates may be provided. These shapes are possible because, according to the invention, Outlet channels for the second heat exchanger medium are dispensed with becomes.
  • the plate heat exchanger shown in Fig. 1 is total designated 1. It has a number of one above the other Heat exchanger plates 2. For the sake of simplicity Only the top and bottom are shown here Plate 2 is shown with a herringbone-like structure. It is possible to include some or all of the between the upper and lower plate lying heat exchanger plates to train with such a structuring.
  • the spaces between the plates 2 form on the primary side or secondary-side flow channels for by means of the plate heat exchanger heat exchange media to be charged. It is for example conceivable, alternately on the primary side and to provide flow channels on the secondary side.
  • the primary side and secondary-side flow channels do not communicate together.
  • an input channel 3 For supplying a first heat exchange medium, for example into the primary-side flow channels is an input channel 3 provided, which only with the primary-side flow channels communicates.
  • the stacked heat exchanger plates 2 with aligned holes, being between each Plates, surrounding the holes, spacing elements 4 are formed.
  • the spacing elements 4 serve both to set a desired distance between the one above the other arranged heat exchanger plates, as well as to ensure the desired communication of the inlet duct 3 exclusively with the primary flow channels.
  • Purposes provided in the spacing elements 4 are known per se and are not described in detail.
  • the primary flow channels communicate furthermore with outlet channels 5, 6 which are in relation to the inlet channel 3 formed at the opposite end of the plate heat exchanger are.
  • the outlet channels are, analogous to the inlet channel, through aligned holes in the heat exchanger plates and spacing elements formed with appropriate openings.
  • the outlet channels 5, 6 with respect to the central axis M of the plate heat exchanger symmetrically in the main flow direction are arranged.
  • the outlet channels 5, 6 form together with the inlet duct 3 the outlet channels 5, 6 a Y-shaped arrangement, whereby a uniform and symmetrical flow with respect to the central axis M. of the heat exchange medium through the primary flow channels is guaranteed.
  • Flow channels are these in the edge areas of the heat exchanger plates 2 through suitable measures, for example through Soldering superimposed heat exchanger plates together, closed fluid-tight.
  • the secondary-side flow channels are according to the invention Plate heat exchanger not designed with the inlet and outlet channels described. Rather, a second flows Heat exchange medium in the represented by the arrows p Direction towards the plate heat exchanger and hits the face on the first side of the plate heat exchanger flow channels on the secondary side.
  • the secondary flow channels are in contrast to the primary side Flow channels, in the edge areas of the heat exchanger plates forming them at least partially open.
  • the plate heat exchanger 1 is arranged within a box, of which only the base area 10 is shown.
  • the second heat exchange medium is to act on the front ends of the secondary Flow channels accordingly in the box, not shown introduced.
  • the surfaces of the Heat exchanger plates in particular in the inlet area of the heat exchange media be made smaller.
  • the side edges 2a of the heat exchanger plates in the area of the inlet duct 3 are designed to converge, that is, with reference to a conventional rectangular shape of the heat exchanger plates their corners are cut away in the inlet area.
  • the individual are correspondingly in the area of the outlet channels Heat exchanger plates 2 are formed with an indentation 11. This shape allows the weight of the plate heat exchanger compared to conventional solutions.
  • the Shaping is made possible by the fact that overall three inlet and outlet channels 3, 5, 6 are provided so that Areas in which conventional inlet and outlet channels were provided for a second heat exchanger medium can be. As explained, result from the more uniform heat exposure through the second heat exchange medium lower temperature gradients in the area of the inlet and outlet channels.
  • At least heat exchanger plates 2 prefferably be provided partly in the form of perforated sheets, as below will be explained with reference to FIG. 2.
  • FIG. 2 schematically shows a preferred construction of the heat exchanger plates 2 of a plate heat exchanger shown.
  • the top plate is in the illustrated embodiment as Perforated sheet with a herringbone-like structure formed (plate 2a). Under this plate is a flat sheet 2b is provided, below which a plate 2c is arranged, which has at least one surface structuring 10 having.
  • the surface structuring can be, for example Be etching structure, and is purely schematic in FIG. 2 shown (plate 2c). Below this plate 2c is again a perforated plate with a herringbone-like structure formed (plate 2a).
  • the gaps between the The heat exchanger plates shown form flow channels.
  • On primary-side flow channel, which between the plates 2b, 2c is designated by I. By the primary side Flow channel I preferably flows, in the case of an evaporator, the medium to be evaporated.
  • a secondary-side flow channel is formed, which is designated II. You can see that within this flow channel II the herringbone pattern structured perforated sheet 2a extends.
  • Heat exchanger plates 2a, 2b, 2c only one preferred Embodiment is concerned. It is also possible, for example, those trained with herringbone-like structuring To form unperforated plates or sheets (corrugated sheets), in which case flow channels between such Heat exchanger plate and accordingly above or below arranged further heat exchanger plates result.
  • FIG. 2 it can also be seen that an inlet channel 3 only communicates with the primary flow channels I.
  • Secondary flow channels II are, as already explained, acted upon at the end by a heat exchanger medium, as again indicated by the arrows p.
  • the spacing elements 4 is in FIG. 2 Omitted for reasons of clarity.
  • ⁇ describes the stress occurring
  • E is the elastic modulus of the respective material or component
  • ⁇ the elongation of the component
  • ⁇ T the thermal expansion coefficient of the component
  • ⁇ T an occurring temperature difference.
  • Suitable materials can be used to increase the permissible stresses of a plate heat exchanger or the heat exchanger plates, for example superaustenites or nickel-based materials.
  • Nickel-based materials for example Alloy 625, are also suitable for reducing the coefficient of thermal expansion ⁇ T.
  • the plate heat exchanger according to the invention can be particularly advantageously composed of individual modules, the two or three, for example.
  • Heat exchanger plates exist, which each the media rooms or flow channels form.
  • Such modules can be found, for example, in the box, in which the heat exchanger is installed, in simple Stack one on top of the other, whereby the individual plates or Modules can be designed as end or tension plates.
  • This can an external constraint of the individual modules or heat exchanger plates be avoided by suitable storage.
  • the pressure forces that occur can be transmitted by means of corrugated or perforated spacer elements or spacers. such as an appropriate arrangement of end or tension plates become.

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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)
EP00112563A 1999-07-01 2000-06-14 Echangeur de chaleur à plaques, notamment réacteur à plaques Withdrawn EP1065462A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19930398 1999-07-01
DE1999130398 DE19930398A1 (de) 1999-07-01 1999-07-01 Plattenwärmetauscher, insbesondere Plattenreaktor

Publications (1)

Publication Number Publication Date
EP1065462A1 true EP1065462A1 (fr) 2001-01-03

Family

ID=7913328

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00112563A Withdrawn EP1065462A1 (fr) 1999-07-01 2000-06-14 Echangeur de chaleur à plaques, notamment réacteur à plaques

Country Status (2)

Country Link
EP (1) EP1065462A1 (fr)
DE (1) DE19930398A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2136175A1 (fr) * 2008-06-21 2009-12-23 Joachim Schult Plaque d'échange de chaleur profilé de manière carrée et caloporteur à plaques compactes fabriqué à l'aide de celle-ci
CN114234699A (zh) * 2021-12-13 2022-03-25 浙江银轮新能源热管理系统有限公司 芯片单元、芯体及冷却器
WO2024146434A1 (fr) * 2023-01-05 2024-07-11 法雷奥汽车空调湖北有限公司 Échangeur de chaleur intermédiaire, ensemble échange de chaleur et circuit de fluide frigorigène

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19948222C2 (de) * 1999-10-07 2002-11-07 Xcellsis Gmbh Plattenwärmetauscher
DE10212754B4 (de) * 2002-03-20 2004-04-08 Krause, Günter Wärmeübertrager
DE10221016A1 (de) * 2002-05-11 2003-11-27 Ballard Power Systems Reaktor
DE102006005106A1 (de) * 2006-02-04 2007-08-09 Modine Manufacturing Co., Racine Wärmetauscher mit einer Anschlussplatte, insbesondere Ladeluftkühler

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH245491A (de) * 1942-05-22 1946-11-15 Jendrassik Georg Wärmeaustauscher.
GB2034872A (en) * 1978-10-26 1980-06-11 Garrett Corp Plate heat exchangers
US4310960A (en) * 1973-04-16 1982-01-19 The Garrett Corporation Method of fabrication of a formed plate, counterflow fluid heat exchanger and apparatus thereof
WO1989011627A1 (fr) 1988-05-25 1989-11-30 Alfa-Laval Thermal Ab Evaporateur a plaques
WO1991016589A1 (fr) 1990-04-17 1991-10-31 Alfa-Laval Thermal Ab Evaporateur a plaques
US5509471A (en) * 1992-01-21 1996-04-23 Alfa Laval Thermal Ab Distribution pattern of a plate heat exchanger
JPH09138082A (ja) * 1995-11-15 1997-05-27 Ebara Corp プレート式熱交換器及びその製造方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4437877C2 (de) * 1994-10-22 1997-08-07 Behr Gmbh & Co Wärmetauscher, insbesondere Ölkühler
DE4441503C2 (de) * 1994-11-22 2000-01-05 Behr Gmbh & Co Wärmetauscher, insbesondere für Kraftfahrzeuge

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH245491A (de) * 1942-05-22 1946-11-15 Jendrassik Georg Wärmeaustauscher.
US4310960A (en) * 1973-04-16 1982-01-19 The Garrett Corporation Method of fabrication of a formed plate, counterflow fluid heat exchanger and apparatus thereof
GB2034872A (en) * 1978-10-26 1980-06-11 Garrett Corp Plate heat exchangers
WO1989011627A1 (fr) 1988-05-25 1989-11-30 Alfa-Laval Thermal Ab Evaporateur a plaques
WO1991016589A1 (fr) 1990-04-17 1991-10-31 Alfa-Laval Thermal Ab Evaporateur a plaques
US5509471A (en) * 1992-01-21 1996-04-23 Alfa Laval Thermal Ab Distribution pattern of a plate heat exchanger
JPH09138082A (ja) * 1995-11-15 1997-05-27 Ebara Corp プレート式熱交換器及びその製造方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 09 30 September 1997 (1997-09-30) *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2136175A1 (fr) * 2008-06-21 2009-12-23 Joachim Schult Plaque d'échange de chaleur profilé de manière carrée et caloporteur à plaques compactes fabriqué à l'aide de celle-ci
CN114234699A (zh) * 2021-12-13 2022-03-25 浙江银轮新能源热管理系统有限公司 芯片单元、芯体及冷却器
WO2024146434A1 (fr) * 2023-01-05 2024-07-11 法雷奥汽车空调湖北有限公司 Échangeur de chaleur intermédiaire, ensemble échange de chaleur et circuit de fluide frigorigène

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Publication number Publication date
DE19930398A1 (de) 2001-01-11

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