EP0851199A2 - Wärmetauscher - Google Patents

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Publication number
EP0851199A2
EP0851199A2 EP97203493A EP97203493A EP0851199A2 EP 0851199 A2 EP0851199 A2 EP 0851199A2 EP 97203493 A EP97203493 A EP 97203493A EP 97203493 A EP97203493 A EP 97203493A EP 0851199 A2 EP0851199 A2 EP 0851199A2
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
sheets
panels
layer
covering
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Withdrawn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
EP97203493A
Other languages
English (en)
French (fr)
Other versions
EP0851199A3 (de
Inventor
Ciro Grilli
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.)
Recuperator Srl
Original Assignee
Recuperator Srl
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 Recuperator Srl filed Critical Recuperator Srl
Publication of EP0851199A2 publication Critical patent/EP0851199A2/de
Publication of EP0851199A3 publication Critical patent/EP0851199A3/de
Withdrawn legal-status Critical Current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
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • 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
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/04—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by preventing the formation of continuous films of condensate on heat-exchange surfaces, e.g. by promoting droplet formation
    • 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

Definitions

  • the present invention refers to a heat exchanger, in particular an air-to-air heat exchanger of the type with a pack of metal plates.
  • heat exchangers of the plate pack type comprising a pile of metallic sheets, preferably of aluminium, substantially with a rectangular shape, as the one described in French patent 2 318 389.
  • the various aluminium sheets are welded to each other in correspondence of a pair of opposite sides, in such a way so that the two flows of air, that must exchange heat with each other, are directed orthogonally to each other.
  • the pack of sheets is sealed in correspondence of the corners by means of corner ribs that, in turn, connect a pair of metal panels, parallel to the aforementioned aluminium sheets, that act as refinishing.
  • object of the following invention is to provide for a heat exchanger of the type described, that instead is not subject to problems with condensate.
  • a heat exchanger composed of a pack of metal sheets laid one upon the other and spaced, each including two pairs of opposite sides and coupled alternatively to the adjacent sheets in correspondence of the first and of the second pair of opposite sides, of two covering panels for the sheet pack and of corner ribs for the connection of the panels, characterised in that each covering panel is soft and partially flexible, and it is essentially made of a layer of non-conductive material.
  • the inside faces of the covering panels result to be thermally insulated with respect to the exchanger, and therefore do not present problems with the formation of condensate.
  • covering panels of the type claimed allows to use sheets of non-conductive material, either with or without one or two layers of coating, currently available on the market, that can then be cut into the proper dimensions.
  • the heat exchanger comprises a plurality of metal sheets 100 laid one upon the other, preferably of aluminium, which, as shown in Figures 2-4, have a plurality of bulges 101 serving the purpose to maintain the sheets themselves at a desired distance and to increase the surface useful to the exchange of heat; always referring to Figures 2-4, the sheets 100 comprise two pairs of opposite sides 3 and 4 and they are coupled alternatively to the adjacent sheets in correspondence of the first and of the second pair of opposite sides.
  • a first plurality of channels defined by the welding zones between the pairs of sides 3 of the adjacent sheets for a first air flow 1 (Fig. 1) alternated with a second plurality of channels defined by the welding zones between the pairs of side 4 and that extend in a direction orthogonal to that of the channels of the first plurality for a second air flow 2.
  • each covering panel is composed of three layers 5, 6 and 7: the outside layers 5 and 7 consist of two thin metal sheets, preferably of aluminium, having a certain degree of flexibility.
  • the intermediate layer 6 is a layer of non-conductive material that serves the purpose to insulate thermally the exterior of the heat exchanger (in this case the layers 5 of the two panels 102) from the inside of the same, as to avoid the formation of condensate.
  • each panel 102 will consist of the sole non-conductive material 6.
  • the layer 6 can be coated only on one side, instead of both, either on the external or on the internal side.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Power Steering Mechanism (AREA)
EP97203493A 1996-12-23 1997-11-10 Wärmetauscher Withdrawn EP0851199A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT96MI000847 IT241092Y1 (it) 1996-12-23 1996-12-23 Scambiatore di calore
ITMI960847U 1996-12-23

Publications (2)

Publication Number Publication Date
EP0851199A2 true EP0851199A2 (de) 1998-07-01
EP0851199A3 EP0851199A3 (de) 1999-07-28

Family

ID=11374167

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97203493A Withdrawn EP0851199A3 (de) 1996-12-23 1997-11-10 Wärmetauscher

Country Status (2)

Country Link
EP (1) EP0851199A3 (de)
IT (1) IT241092Y1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10324089A1 (de) * 2003-02-13 2004-09-02 Loher Gmbh Rekuperativer Plattenwärmetauscher
WO2018157192A1 (en) * 2017-03-03 2018-09-07 Ficom Pty Ltd Heat exchanger

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2318389A1 (fr) 1975-07-16 1977-02-11 Munters Ab Carl Procede de traitement de l'air d'entree d'une installation de climatisation et appareil pour sa mise en oeuvre

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1153361A (en) * 1981-04-14 1983-09-06 Greg A. S. Allen Air-to-air heat exchanger
US4554719A (en) * 1983-04-01 1985-11-26 Nutech Energy Systems, Inc. Machine and method for the manufacture of an air-to-air heat exchanger
US4848450A (en) * 1988-02-09 1989-07-18 C & J Jones (1985) Limited Heat exchanger
CZ279891B6 (cs) * 1993-10-13 1995-08-16 Mircea Dinulescu Tepelný výměník deskového typu
WO1996035083A1 (en) * 1995-05-01 1996-11-07 Mo Zhong Liang Heat exchange unit and methods

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2318389A1 (fr) 1975-07-16 1977-02-11 Munters Ab Carl Procede de traitement de l'air d'entree d'une installation de climatisation et appareil pour sa mise en oeuvre

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10324089A1 (de) * 2003-02-13 2004-09-02 Loher Gmbh Rekuperativer Plattenwärmetauscher
WO2018157192A1 (en) * 2017-03-03 2018-09-07 Ficom Pty Ltd Heat exchanger

Also Published As

Publication number Publication date
ITMI960847U1 (it) 1998-06-23
EP0851199A3 (de) 1999-07-28
IT241092Y1 (it) 2001-04-20

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