US20080029255A1 - Heat Exchanger - Google Patents

Heat Exchanger Download PDF

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Publication number
US20080029255A1
US20080029255A1 US11/579,571 US57957105A US2008029255A1 US 20080029255 A1 US20080029255 A1 US 20080029255A1 US 57957105 A US57957105 A US 57957105A US 2008029255 A1 US2008029255 A1 US 2008029255A1
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US
United States
Prior art keywords
heat exchanger
exchanger according
radial spokes
spacer
casings
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.)
Abandoned
Application number
US11/579,571
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English (en)
Inventor
Christian Orlandi
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.)
Movi Alluminium Srl
Original Assignee
Movi Alluminium 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 Movi Alluminium Srl filed Critical Movi Alluminium Srl
Assigned to MOVI ALLUMINIUM S.R.L. reassignment MOVI ALLUMINIUM S.R.L. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ORLANDI, CHRISTIAN
Publication of US20080029255A1 publication Critical patent/US20080029255A1/en
Abandoned legal-status Critical Current

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    • 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
    • F28D1/03—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 plate-like or laminated conduits
    • 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
    • F28D1/03—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 plate-like or laminated conduits
    • F28D1/0308—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 plate-like or laminated conduits the conduits being formed by paired plates touching each other
    • F28D1/0325—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 plate-like or laminated conduits the conduits being formed by paired plates touching each other the plates having lateral openings therein for circulation of the heat-exchange medium from one conduit to another
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2240/00—Spacing means

Definitions

  • the present invention in its most general aspect, refers to a heat exchanger for the heat exchange between a first and a second fluid.
  • the invention concerns a heat exchanger for the heat exchange between pressurized fluids, of the type comprising a plurality of casings, of substantially flattened shape and of predetermined width, arranged in a pile, with an air space defined between adjacent casings in the pile, and each formed from two half-shells welded along a peripheral strip, which are in fluid communication with each other through respective holes opening into said air space.
  • Heat exchanger for the heat exchange between two fluids of the type comprising a plurality of casings or flattened tubes are known.
  • Each casing is formed from two half-shells on which respective holes are open, in corresponding positions, at which adjacent casings are joined through collectors.
  • each pair of adjacent casings defines an air space through which a first flow of fluid is conveyed, whereas a second flow of fluid at a different temperature crosses the plurality of casings.
  • the aforementioned joining collectors between adjacent casings are, according to the prior art, pieces of tubes interfacing with the half-shells and forced, through plastic deformation, around respective conical edges foreseen at the holes open on the casings.
  • Heat exchangers thus realized, although advantageous, are not free from drawbacks, including the main one represented by the low mechanical resistance that they possess and that impairs its use, in particular in the case of heat exchange between flows of fluids at high pressure values.
  • heat exchangers thus realized cannot be used, or in any case are of little industrial interest, in the case of heat exchange between flows of fluids of which at least one is at a high pressure value; where by high pressure value we mean a value greater than 10-13 bar.
  • the technical problem forming the basis of the present invention is that of devising a heat exchanger for the heat exchange between a first fluid and a second fluid, of the type comprising a plurality of casings, of substantially flattened shape and of predetermined width, arranged in a pile, with an air space defined between adjacent casings in the pile, and each formed from two half-shells welded along a peripheral strip, in which the aforementioned casings are in fluid communication with each other through respective holes opening into the aforementioned air space, having structural and functional characteristics such as to overcome the aforementioned drawbacks, in other words such as to ensure an unusual strength and mechanical resistance.
  • a heat exchanger of the type considered above comprising, in the aforementioned air space, at least one spacer, substantially of the sleeve type, abutting on at the top end and made integral with said adjacent casings around the respective holes opening into said air space.
  • the heat exchanger comprises irregularities associated with the aforementioned at least one spacer, which extend in the air space to rigidify the half-shells.
  • the aforementioned irregularities are radial spokes extending radially from said at least one spacer.
  • the aforementioned radial spokes are practically equally angularly spaced.
  • the aforementioned radial spokes are formed integrally with the spacer, and more preferably radial spokes and spacer are a piece of an extruded profile.
  • the aforementioned extruded profile is made from metallic material selected from the group comprising aluminium, aluminium alloys, copper, copper alloys and similar metallic materials.
  • FIG. 1 shows a schematic front section view of a heat exchanger in accordance with the present invention, made along the line I-I;
  • FIG. 2 shows a plan view of the heat exchanger of FIG. 1 , made according to the arrow II;
  • FIG. 3 shows an enlarged view of a detail of the exchanger of FIG. 1 ;
  • FIG. 4 shows a section view of a detail of the heat exchanger of FIG. 1 , made according to the line IV-IV of FIG. 3 ;
  • FIG. 5 shows a perspective, exploded view of a portion of the exchanger of FIG. 1 ;
  • FIG. 6 shows the portion of FIG. 5 of the heat exchanger in accordance with a variant embodiment of the invention
  • FIG. 7 shows a detail of the portion of FIG. 5 in accordance with a further variant embodiment of the invention.
  • FIG. 8 shows the detail of FIG. 4 in accordance with a further variant embodiment of the invention.
  • a heat exchanger for the heat exchange between a first fluid, for example oil, and a second fluid, for example air, realized according to the present invention is globally and schematically represented with 1 .
  • the heat exchanger 1 essentially comprises a plurality of casings 2 , of substantially flattened shape, associated together in a predetermined distanced relationship in a pile 2 a, with respective cavities 3 defined between casings.
  • the casings 2 are clamped, in a known way, between a first plate 4 and a second plate 5 , the latter provided with joints 5 a for the passage, for example, of the first of the aforementioned fluids.
  • the described exchanger has joints 5 a of 1′′ (one inch).
  • Each of the casings 2 is formed from two half-shells 6 welded along a peripheral strip 6 a each of which is equipped, in corresponding positions, with respective holes 7 .
  • peripheral strip 6 a has an outer edge 6 b comprising a trim 6 c bent square, and that the half-shells 6 are realized in aluminium sheet of small thickness of between 0.1 and 0.4 mm, preferably 0.3 mm.
  • Such respective holes 7 which in the pile 2 a are aligned, place the aforementioned casings 2 in fluid communication with each other.
  • the heat exchanger 1 comprises, in each of said cavities 3 , a spacer 8 , substantially of the sleeve type, abutting on at the top end and made integral with the aforementioned adjacent casings around each of the respective holes 7 of the half-shells 6 , realizing an inviolable mechanical connection between adjacent casings.
  • Such spacers 8 made integral with the casings 2 , for example through brazing or welding, define, at the respective holes 7 , passage collectors for the aforementioned first fluid, communicating with the inside of the casings 2 .
  • the heat exchanger 1 comprises irregularities 9 associated with each spacer 8 , which extend in each air space 3 , constituting rigidifying elements of the half-shells 6 .
  • a predetermined number of such radial spokes 9 extending outside of the spacer 8 in the example a number equal to seven spokes indicated with 9 a , extends up to the aforementioned peripheral strip 6 a.
  • such a predetermined number of radial spokes 9 a extends up to, and abuts upon, the aforementioned trim 6 c bent square.
  • the remaining radial spokes 9 of the same spacer 8 in the example three spokes indicated with 9 b , are sheared according to a transversal plane, indicated with T, which constitutes the plane of reference and support for a corrugated plate, globally indicated with 11 , arranged in each of the cavities 3 and called “turbulator” by the man skilled in the art.
  • a second corrugated plate or turbulator 11 a is arranged inside each casing 2 .
  • corrugated plates 11 , 11 a have the purpose of increasing the efficiency of the heat exchange of the heat exchanger 1 , increasing the turbulence, by means of their corrugated surfaces, of the flows of fluids intended for the heat exchange.
  • the aforementioned radial spokes 9 are formed integrally with the spacer 8 from which they project, and more preferably radial spokes and spacer are a piece of an extruded profile made from a metallic material selected from the group comprising aluminium, copper, aluminium alloys, copper alloys and similar metallic materials.
  • the thickness s of the spacer 8 and the thicknesses of the radial spokes 9 have values of between 2 and 4 mm, preferably 3.5 mm.
  • each of the aforementioned respective holes 7 of each half-shell 6 is foreseen equipped with a centring edge 12 , projecting from the half-shell 6 in the direction of the air space 3 , for the alignment of the spacer 8 .
  • the main advantage of the heat exchanger according to the present invention lies in its unusual strength.
  • the heat exchanger according to the invention in this way, is particularly suitable for the heat exchange between pressurized flows of fluids, also for pressures of up to 35 bar and more.
  • the mechanical resistance of the exchanger is improved by the radial spokes of the spacers, which constitute support elements for each corrugated plate arranged in the cavities.
  • the corrugated plates are stably locked by the radial spokes in an optimal position that allows an excellent increase in turbulence of the flow of fluid that crosses the cavities, and an optimal heat exchange in particular at high pressure values of such a flow.
  • the heat exchanger according to the present invention allows a heat exchange to be carried out between a first fluid conveyed inside the casings, and a second fluid conveyed into the cavities between adjacent casings, in particular and at most when both of the respective flows of such fluids are at high pressure values, thanks to the special structure described above.
  • Such an unusual strength of the heat exchanger according to the invention is achieved, advantageously, simultaneously maintaining a compact structure of the exchanger, through half-shells realized with a low thickness as required for an effective heat exchange.
  • a further advantage achieved by the heat exchanger according to the invention lies in the minimal or negligible pressure drop that the fluids undergo during the heat exchange, thanks to the aforementioned mechanical connection that ensures a better seal than that which has been provided up to now by the prior art.
  • the heat exchanger comprises spacers 8 , substantially shaped like a sleeve, made integral at the top end on adjacent casings 2 and comprising radial spokes 90 projecting towards the inside of the spacer 8 .
  • the aforementioned radial spokes 90 projecting towards the inside of the spacer are sheared, at their free ends, so as to surround the centring edge 12 of the respective holes 7 .
  • the spacer 8 comprises a first portion 80 a with a curved profile, and a second portion 80 b with a squared profile constituting the reference plane for the turbulator 11 .
  • FIG. 7 a further variant embodiment of the heat exchanger in accordance with the invention is represented.
  • the heat exchanger comprises spacers 8 , substantially shaped like a sleeve, each equipped with radial spokes projecting towards the inside of the spacer, indicated with 90 a , and radial spokes projecting towards the outside of the spacer and indicated with 90 b.
  • the holes 7 open on the half-shells 6 of the casings 2 are oblong.
  • Holes extending transversally are particularly advantageous in the case of large widths of the exchanger, foreseen to withstand high flow rates of the fluid circulating in the half-shells of the exchanger itself.
US11/579,571 2004-05-06 2005-04-28 Heat Exchanger Abandoned US20080029255A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP04425322A EP1593923B1 (de) 2004-05-06 2004-05-06 Wärmetauscher
EP04425322.7 2004-05-06
PCT/EP2005/004574 WO2005108895A1 (en) 2004-05-06 2005-04-28 Heat exchanger

Publications (1)

Publication Number Publication Date
US20080029255A1 true US20080029255A1 (en) 2008-02-07

Family

ID=34932482

Family Applications (1)

Application Number Title Priority Date Filing Date
US11/579,571 Abandoned US20080029255A1 (en) 2004-05-06 2005-04-28 Heat Exchanger

Country Status (14)

Country Link
US (1) US20080029255A1 (de)
EP (1) EP1593923B1 (de)
JP (1) JP2007536493A (de)
KR (1) KR20070035001A (de)
CN (1) CN100516748C (de)
AT (1) ATE350636T1 (de)
BR (1) BRPI0510673A (de)
CA (1) CA2565586A1 (de)
DE (1) DE602004004083T2 (de)
DK (1) DK1593923T3 (de)
ES (1) ES2282835T3 (de)
PL (1) PL1593923T3 (de)
RU (1) RU2374586C2 (de)
WO (1) WO2005108895A1 (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110223022A1 (en) * 2011-01-28 2011-09-15 General Electric Company Actuatable surface features for wind turbine rotor blades
US20110232863A1 (en) * 2010-03-29 2011-09-29 Zaffetti Mark A Integral cold plate and structural member
US20130092744A1 (en) * 2010-10-07 2013-04-18 Mitsubishi Heavy Industries, Ltd. Heating-medium heating unit and vehicle air conditioner equipped with the same
US20130112382A1 (en) * 2009-10-27 2013-05-09 Steffen Brunner Exhaust gas evaporator
US20130205776A1 (en) * 2010-08-26 2013-08-15 Modine Manufacturing Company Waste heat recovery system and method of operating the same
US9267491B2 (en) 2013-07-02 2016-02-23 General Electric Company Wind turbine rotor blade having a spoiler

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101371641B1 (ko) * 2011-12-15 2014-03-10 주식회사 한국쿨러 보강 판넬 및 이를 채용하는 판형 열교환기

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3308879A (en) * 1964-06-10 1967-03-14 Maddocks Herbert Fernyhough Heat exchangers
US3444926A (en) * 1967-11-28 1969-05-20 Rosenblads Patenter Ab Arrangement in heat exchangers of the plate type
US4379486A (en) * 1979-08-03 1983-04-12 Fuji Jukogyo Kabushiki Kaisha Heat exchanger
US4616695A (en) * 1984-05-11 1986-10-14 Mitsubishi Denki Kabushiki Kaisha Heat exchanger
US4729428A (en) * 1984-06-20 1988-03-08 Showa Aluminum Corporation Heat exchanger of plate fin type
US5058662A (en) * 1990-09-26 1991-10-22 General Motors Corporation Multi tube heat exchanger with integral tube spacers and interlocks
US5184673A (en) * 1989-04-28 1993-02-09 Torell Ab Plate heat exchanger and method for its manufacture
US5327958A (en) * 1992-07-16 1994-07-12 Tenez A.S. Stacked-plate heat exchanger
US5794691A (en) * 1995-07-10 1998-08-18 Long Manufacturing Ltd. Plate heat exchanger with reinforced input/output manifolds
US6170567B1 (en) * 1996-12-05 2001-01-09 Showa Aluminum Corporation Heat exchanger
US6260612B1 (en) * 1999-05-20 2001-07-17 Toyo Radiator Co., Ltd. “Stacked” type heat exchanger

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7115268U (de) * 1971-07-29 Steeb D Wärmetauscher mit parallel zueinander angeordneten Flachrohren
FR2657423B1 (fr) * 1990-01-25 1998-01-02 Valeo Thermique Moteur Sa Echangeur de chaleur a lames allongees, en particulier radiateur de refroidissement d'huile.
JP2547545Y2 (ja) * 1991-05-01 1997-09-10 東洋ラジエーター株式会社 積層型熱交換器
EP1189009A1 (de) * 2000-09-15 2002-03-20 Toyo Radiator Co., Ltd. Wärmetauscher in Stapelbauweise
EP1549895A4 (de) * 2002-10-11 2012-01-18 Showa Denko Kk Flacher hohlkörper zum durchlassen von fluid dadurch, wärmetauscher mit dem hohlkörper und verfahren zur herstellung des wärmetauschers

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3308879A (en) * 1964-06-10 1967-03-14 Maddocks Herbert Fernyhough Heat exchangers
US3444926A (en) * 1967-11-28 1969-05-20 Rosenblads Patenter Ab Arrangement in heat exchangers of the plate type
US4379486A (en) * 1979-08-03 1983-04-12 Fuji Jukogyo Kabushiki Kaisha Heat exchanger
US4616695A (en) * 1984-05-11 1986-10-14 Mitsubishi Denki Kabushiki Kaisha Heat exchanger
US4729428A (en) * 1984-06-20 1988-03-08 Showa Aluminum Corporation Heat exchanger of plate fin type
US5184673A (en) * 1989-04-28 1993-02-09 Torell Ab Plate heat exchanger and method for its manufacture
US5058662A (en) * 1990-09-26 1991-10-22 General Motors Corporation Multi tube heat exchanger with integral tube spacers and interlocks
US5327958A (en) * 1992-07-16 1994-07-12 Tenez A.S. Stacked-plate heat exchanger
US5794691A (en) * 1995-07-10 1998-08-18 Long Manufacturing Ltd. Plate heat exchanger with reinforced input/output manifolds
US6170567B1 (en) * 1996-12-05 2001-01-09 Showa Aluminum Corporation Heat exchanger
US6260612B1 (en) * 1999-05-20 2001-07-17 Toyo Radiator Co., Ltd. “Stacked” type heat exchanger

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130112382A1 (en) * 2009-10-27 2013-05-09 Steffen Brunner Exhaust gas evaporator
US20110232863A1 (en) * 2010-03-29 2011-09-29 Zaffetti Mark A Integral cold plate and structural member
US8522861B2 (en) * 2010-03-29 2013-09-03 Hamilton Sundstrand Space Systems International, Inc. Integral cold plate and structural member
US20130205776A1 (en) * 2010-08-26 2013-08-15 Modine Manufacturing Company Waste heat recovery system and method of operating the same
US9267414B2 (en) * 2010-08-26 2016-02-23 Modine Manufacturing Company Waste heat recovery system and method of operating the same
US20130092744A1 (en) * 2010-10-07 2013-04-18 Mitsubishi Heavy Industries, Ltd. Heating-medium heating unit and vehicle air conditioner equipped with the same
US20110223022A1 (en) * 2011-01-28 2011-09-15 General Electric Company Actuatable surface features for wind turbine rotor blades
US9267491B2 (en) 2013-07-02 2016-02-23 General Electric Company Wind turbine rotor blade having a spoiler

Also Published As

Publication number Publication date
RU2006142764A (ru) 2008-06-20
JP2007536493A (ja) 2007-12-13
DE602004004083T2 (de) 2007-11-15
DE602004004083D1 (de) 2007-02-15
DK1593923T3 (da) 2007-05-14
EP1593923B1 (de) 2007-01-03
CA2565586A1 (en) 2005-11-17
ATE350636T1 (de) 2007-01-15
PL1593923T3 (pl) 2007-05-31
ES2282835T3 (es) 2007-10-16
BRPI0510673A (pt) 2007-12-26
WO2005108895A1 (en) 2005-11-17
CN100516748C (zh) 2009-07-22
KR20070035001A (ko) 2007-03-29
RU2374586C2 (ru) 2009-11-27
EP1593923A1 (de) 2005-11-09
CN1977137A (zh) 2007-06-06
WO2005108895A8 (en) 2006-03-02

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Legal Events

Date Code Title Description
AS Assignment

Owner name: MOVI ALLUMINIUM S.R.L., ITALY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:ORLANDI, CHRISTIAN;REEL/FRAME:018851/0664

Effective date: 20070122

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION