EP1914499A1 - Wärmetauscher mit schräg gestellten Rohren - Google Patents

Wärmetauscher mit schräg gestellten Rohren Download PDF

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Publication number
EP1914499A1
EP1914499A1 EP06425707A EP06425707A EP1914499A1 EP 1914499 A1 EP1914499 A1 EP 1914499A1 EP 06425707 A EP06425707 A EP 06425707A EP 06425707 A EP06425707 A EP 06425707A EP 1914499 A1 EP1914499 A1 EP 1914499A1
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EP
European Patent Office
Prior art keywords
heat exchanger
manifolds
perforated
exchanger according
walls
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Withdrawn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
EP06425707A
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English (en)
French (fr)
Inventor
Alessandro Zen
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.)
IRSAP SpA
Original Assignee
IRSAP SpA
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 IRSAP SpA filed Critical IRSAP SpA
Priority to EP06425707A priority Critical patent/EP1914499A1/de
Publication of EP1914499A1 publication Critical patent/EP1914499A1/de
Withdrawn legal-status Critical Current

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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
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
    • F28D1/0535—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight the conduits having a non-circular cross-section
    • F28D1/05366—Assemblies of conduits connected to common headers, e.g. core type radiators
    • F28D1/05383—Assemblies of conduits connected to common headers, e.g. core type radiators with multiple rows of conduits or with multi-channel 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
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/126—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element consisting of zig-zag shaped fins
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F17/00—Removing ice or water from heat-exchange apparatus
    • F28F17/005—Means for draining condensates from heat exchangers, e.g. from 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
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D2001/0253—Particular components
    • F28D2001/026—Cores
    • F28D2001/0266—Particular core assemblies, e.g. having different orientations or having different geometric features
    • 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

Definitions

  • the present invention relates to a heat exchanger of perfected type, specifically for climate control systems.
  • the heat exchanger performs by the user's choice the function of either cooling or heating the environment.
  • the current heat exchangers are preferably formed by aluminium and comprise two vertical manifolds, a plurality of flat, perforated tubes arranged on reciprocally parallel and horizontal planes and adapted to put the two manifolds into hydraulic communication, and a plurality of undulated conformation foils placed, by means of welding, between the two adjacent perforated tubes.
  • the heat exchanger When the heat exchanger is used for cooling the environment in which it is installed and therefore absorbs heat from such environment, there is determined due to the humidity in the air present in the environment the phenomenon of condensation which is deposited on the walls of the perforated tubes and on the foils. Now, in the case of temperatures close to 0 centigrade, the condensation may freeze. It is apparent that the formation of ice not only decreases the heat exchanging surface of the heat exchanger but above all compromises the mechanical structure of the heat exchanger because the various parts which compose the exchanger may get dislocated. Essentially, some parts of the heat exchanger may get detached from those parts to which they were originally fixed causing some undesired cracks which induce leaking out of the fluid which circulates within the exchanger.
  • the deposit and the stagnation of condensation on the walls of parts of the heat exchanger promote the aggression of the metal by corrosive elements present in the air and therefore also in the condensation. And this not only may cause other cracks but also contributes to weakening even more the mechanical structure of the exchanger. It must be underlined that the heat exchanger is not a member which in case of breakage may be easily repaired, but is a member which in the event of breakage must be integrally replaced with all the costs deriving therefrom.
  • a heat exchanger of the perfected type comprising two vertical manifolds, a plurality of flat, perforated, reciprocally parallel tubes adapted to put said manifolds into hydraulic communication, and a plurality of undulated foils installed between adjacent perforated tubes, characterised in that said perforated tubes present a reciprocally parallel upper wall and a lower wall which lie on an inclined plane with respect to a horizontal plane.
  • Exchanger 1 indicates a heat exchanger for climate control systems.
  • Exchanger 1 comprises two vertical manifolds 2 which in this exemplary embodiment present a cylindrical conformation, a plurality of flat, perforated, reciprocally parallel tubes 3 adapted to put the two manifolds 2 into hydraulic communication, and a plurality of undulated foils 4 installed between adjacent perforated tubes 3; manifolds 2, perforated tubes 3 and foils 4 being preferably formed by aluminium.
  • each manifold 2 presents a plurality of notches 5 engaged by an axial end of a corresponding perforated tube 3.
  • the axial end of perforated tube 3 is welded to the inside of corresponding notch 5.
  • Each perforated tube 3 is defined by a rectangular section plan boxed element and presenting a flat upper wall 6, a flat lower wall 7 parallel and with dimensions equal to wall 6, a flat front wall 8 defined on an orthogonal plane with respect to that of walls 6 and 7 and of reduced dimensions and a flat rear wall 11 parallel and with dimensions equal to wall 8.
  • Perforated tube 3 along its longitudinal axis presents open axial ends and within the same by means of partition walls 12 parallel to walls 8 and 11 a plurality of channels 13 are defined.
  • the main feature of the present invention consists in that walls 6 and 7 lie on oblique planes (as shown in figure 3) with respect to a horizontal plane. Specifically, the inclination of walls 6 and 7 is between 30 and 60° and preferably 45°. Notches 5 present an internal conformation similar to the external conformation of perforated tube 3 to accept the axial end of the latter. It is apparent that also notches 5 made in manifolds 2 are made with the same slant as walls 6 and 7 and specifically present internal walls parallel to walls 6 and 7 with the same slant as these.
  • Foils 4 are defined by a band to which a certain undulated conformation is given; the upper vertexes of foil 4 being welded to lower wall 7 of perforated tube 3 above, while the lower vertexes of foil 4 being welded to the upper wall 6 of the perforated tube 3 underneath.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
EP06425707A 2006-10-16 2006-10-16 Wärmetauscher mit schräg gestellten Rohren Withdrawn EP1914499A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06425707A EP1914499A1 (de) 2006-10-16 2006-10-16 Wärmetauscher mit schräg gestellten Rohren

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06425707A EP1914499A1 (de) 2006-10-16 2006-10-16 Wärmetauscher mit schräg gestellten Rohren

Publications (1)

Publication Number Publication Date
EP1914499A1 true EP1914499A1 (de) 2008-04-23

Family

ID=37847167

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06425707A Withdrawn EP1914499A1 (de) 2006-10-16 2006-10-16 Wärmetauscher mit schräg gestellten Rohren

Country Status (1)

Country Link
EP (1) EP1914499A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2947411A4 (de) * 2013-01-21 2016-11-23 Toshiba Lifestyle Products & Services Corp Wärmetauscher für eine klimatisierungsvorrichtung
FR3116301A1 (fr) * 2020-11-18 2022-05-20 Valeo Systemes Thermiques Module de refroidissement pour véhicule automobile électrique ou hybride à turbomachine tangentielle avec échangeur de chaleur supplémentaire

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6127495A (ja) * 1984-07-18 1986-02-06 Showa Alum Corp 積層型熱交換器
JPH04186070A (ja) * 1990-11-16 1992-07-02 Showa Alum Corp 熱交換装置
JPH1062092A (ja) * 1996-04-09 1998-03-06 Lg Electron Inc フラットチューブ形熱交換器
JP2004069228A (ja) * 2002-08-08 2004-03-04 Denso Corp 熱交換器
EP1541946A1 (de) * 2003-12-12 2005-06-15 Samsung Electronics Co., Ltd. Verdampfungsanlage für eine Wärmepumpe
WO2006005133A1 (en) * 2004-07-13 2006-01-19 Darryl John Jones Single cycle apparatus for condensing water from ambient air

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6127495A (ja) * 1984-07-18 1986-02-06 Showa Alum Corp 積層型熱交換器
JPH04186070A (ja) * 1990-11-16 1992-07-02 Showa Alum Corp 熱交換装置
JPH1062092A (ja) * 1996-04-09 1998-03-06 Lg Electron Inc フラットチューブ形熱交換器
JP2004069228A (ja) * 2002-08-08 2004-03-04 Denso Corp 熱交換器
EP1541946A1 (de) * 2003-12-12 2005-06-15 Samsung Electronics Co., Ltd. Verdampfungsanlage für eine Wärmepumpe
WO2006005133A1 (en) * 2004-07-13 2006-01-19 Darryl John Jones Single cycle apparatus for condensing water from ambient air

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2947411A4 (de) * 2013-01-21 2016-11-23 Toshiba Lifestyle Products & Services Corp Wärmetauscher für eine klimatisierungsvorrichtung
FR3116301A1 (fr) * 2020-11-18 2022-05-20 Valeo Systemes Thermiques Module de refroidissement pour véhicule automobile électrique ou hybride à turbomachine tangentielle avec échangeur de chaleur supplémentaire
WO2022106147A1 (fr) * 2020-11-18 2022-05-27 Valeo Systemes Thermiques Module de refroidissement pour véhicule automobile électrique ou hybride à turbomachine tangentielle avec échangeur de chaleur supplémentaire

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