EP0776454B1 - Tube plat pour echangeur de chaleur - Google Patents
Tube plat pour echangeur de chaleur Download PDFInfo
- Publication number
- EP0776454B1 EP0776454B1 EP96922944A EP96922944A EP0776454B1 EP 0776454 B1 EP0776454 B1 EP 0776454B1 EP 96922944 A EP96922944 A EP 96922944A EP 96922944 A EP96922944 A EP 96922944A EP 0776454 B1 EP0776454 B1 EP 0776454B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- flat
- central segment
- free edges
- piece
- flat tube
- 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 - Lifetime
Links
- 229910052751 metal Inorganic materials 0.000 claims description 18
- 239000002184 metal Substances 0.000 claims description 18
- 238000005192 partition Methods 0.000 claims description 7
- 238000005096 rolling process Methods 0.000 claims description 5
- 238000005219 brazing Methods 0.000 claims description 4
- 230000000295 complement effect Effects 0.000 claims description 4
- 239000011324 bead Substances 0.000 description 7
- 229910000679 solder Inorganic materials 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 4
- 238000007747 plating Methods 0.000 description 4
- 238000004378 air conditioning Methods 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000003507 refrigerant Substances 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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
- F28D1/03—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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/15—Making tubes of special shape; Making tube fittings
- B21C37/151—Making tubes with multiple passages
-
- 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
- F28F1/02—Tubular elements of cross-section which is non-circular
- F28F1/022—Tubular elements of cross-section which is non-circular with multiple channels
-
- 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
- Y10S165/906—Reinforcement
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/4935—Heat exchanger or boiler making
- Y10T29/49391—Tube making or reforming
Definitions
- the invention relates to a flat tube for a heat exchanger. heat, in particular from a heating and / or heating installation motor vehicle air conditioning or for an installation motor vehicle cooling.
- It relates more particularly to a flat tube of the type comprising two opposite flat sides interconnected by two rounded sides and by two internal partitions longitudinal to define circulation channels in the tube.
- Such flat tubes also called “multichannel tubes” are arranged in parallel to form a beam, which also includes corrugated dividers, forming fins, arranged between the tubes.
- These tubes are intended to be traversed by a fluid coolant which can be water or a refrigerant.
- these multichannel tubes can be used to form a condenser of an air conditioning system and then be crossed by a refrigerant. This last may be at high pressure.
- the internal partitions of the tubes serve in such a case to stiffen the tube and prevent its deformation under the effect high refrigerant pressure.
- the partitions allow define traffic channels that can be crossed by different fluids, possibly against the current.
- this known tube has the disadvantage that it does not allow to realize that flat tubes having a single partition internal and thus delimiting only two channels of circulation.
- the object of the invention is in particular to overcome the drawbacks cited above.
- the tube is thus obtained by assembling and brazing two complementary parts which closely fit together in the other, the main room sandwiching the secondary room.
- the two parts When the two parts are assembled and brazed, they constitute a single tube which includes two partitions internal and therefore three circulation channels, which extend parallel to each other.
- each free edges of the main room is folded at an angle right relative to the corresponding side segment and stops at a distance from the first flat side, leaving a given value interval.
- each of the free edges of the secondary part is folded at right angles to the central segment and ends with a rim which is substantially parallel to the central segment and which is suitable for entering a corresponding interval of the main room, which allows a close nesting of the two parts between them.
- the value of the interval is substantially equal to the thickness of the metal strip from which the secondary part, which allows a tight assembly.
- the metal strip of the main room has a solder plating on one of its faces, or outer face, which allows, on the one hand, to form a solder joint with the secondary part and, on the other hand, to form a weld bead with the fins of the exchanger.
- the strip metal of the secondary part is provided with a plating of solder on both sides, which allows, on the one hand, to obtain a weld bead with the main part and, on the other hand, to ensure a weld bead with the heat exchanger fins.
- the flat tube shown in cross section in the figure 1 is formed by the assembly and brazing of two parts complementary, namely a main room 12 and a secondary room 14.
- Main part 12 is formed from a strip metallic, for example aluminum or aluminum alloy, folded by several successive rolling operations.
- the part 12 includes a first flat side 16 framed by two rounded sides 18, of semi-circular shape, which are connected respectively with two lateral segments 20 of configuration plane.
- the two lateral segments 20 are parallel to the flat side 16 and each have a width which corresponds substantially to the third of the width of the flat side 16.
- Each side segment 20 leads to a free edge 22 folded at right angles to direction of the interior of the flat side 16.
- the two edges free 22 are parallel to each other and spaced apart by a distance d which is substantially equal to a third of the width of the side flat 16.
- Each of the free edges 22 stops at a distance from the flat side 16 with an interval i of given value which is substantially equal to the thickness of the metal strip of which the secondary part 14 is formed. This thickness is in practice the same as that of the metal strip whose the main part 12 is formed.
- the secondary part 14 is formed from a strip folded metal, e.g. aluminum or alloy aluminum, obtained by several rolling operations successive.
- the part 14 comprises a central segment 24 of planar configuration whose width is substantially equal to the aforementioned distance d.
- This central segment 24 leads to two free edges 26 folded at right angles, so that they extend parallel between them.
- Each of the free edges 26 continues with a rim 28 which is perpendicular to edge 26 and therefore parallel to segment 24.
- the two flanges 28 are coplanar and extend in opposite directions.
- the secondary part 14 can be nested sandwiched in main room 12 in position shown in Figure 1.
- each of the edges 26 of the part 14 comes pressing against a corresponding edge 22 of the part 12, while each of the flanges 28 comes to be embedded in a interval i of the part 12.
- the nesting of the two parts can be done in a longitudinal direction, or by slight deformation of at least one of the two parts.
- each edge 22 forms with the edge 26 and the rim 16 corresponding to an internal partition, so that the tube is divided into three channels 30 which extend in parallel between them.
- the central segment 14 and the two lateral segments 20 are coplanar and thus form a second flat side 32 of the flat tube, which extends parallel to the first flat side 16.
- the metal strip from which the main part 12 is formed has a solder plating on its outer face FE to allow the formation of a solder joint with the secondary part 14. This also makes it possible to obtain a weld bead for connecting the tube with fins 34, as shown in Figure 2.
- the metal strip from which the part is formed secondary 14 is provided with a solder plating on its face external FE and on its internal face FI. This allows to obtain a weld bead of the two flanges 28 with inside the flat side 16.
- the presence of the flanges 28 is optional. However, this presence is preferable for facilitate temporary maintenance of the two parts to the soldering operation.
- the flat tube according to the invention is intended for making heat exchangers, in particular for heating installations heating and / or air conditioning of motor vehicles.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Geometry (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Description
- une première pièce, ou pièce principale, formée à partir d'une bande métallique pliée et constituant un premier côté plat, les deux côtés arrondis et deux segments latéraux raccordés respectivement aux deux côtés arrondis pour constituer en partie le second côté plat, les deux segments latéraux aboutissant respectivement à deux bords libres distants l'un de l'autre et repliés en direction du premier côté plat; et
- une seconde pièce, ou pièce secondaire, formée à partir d'une bande métallique pliée et constituant un segment central propre à former en partie le second côté plat, le segment central aboutissant à deux bords libres repliés d'un même côté dudit segment, en sorte que les bords libres du segment central peuvent s'appliquer contre les bords libres des segments latéraux pour maintenir la pièce secondaire en sandwich dans la pièce principale, et que le segment principal et les segments latéraux forment ensemble le second côté plat du tube.
- la figure 1 est une vue en coupe transversale d'un tube plat selon l'invention; et
- la figure 2 est une vue partielle de côté d'un échangeur de chaleur comprenant des tubes plats selon l'invention intercalés avec des ailettes.
Claims (7)
- Tube plat pour échangeur de chaleur, du type comprenant deux côtés plats opposés reliés entre eux par deux côtés arrondis et par deux cloisons internes longitudinales pour définir des canaux de circulation,
caractérisé en ce que le tube est formé par assemblage et brasage de deux pièces complémentaires qui comprennent :une pièce principale (12) formée à partir d'une bande métallique pliée et constituant un premier côté plat (16), les deux côtés arrondis (18) et deux segments latéraux (20) raccordés respectivement aux deux côtés arrondis (18) pour constituer en partie le second côté plat (32), les deux segments latéraux (20) aboutissant respectivement à deux bords libres (22) distants l'un de l'autre et repliés en direction du premier côté plat (16); etune pièce secondaire (14) formée à partir d'une bande métallique et constituant un segment central (24) propre à former en partie le second côté plat (32), le segment central aboutissant à deux bords libres (26) repliés d'un même côté dudit segment central, en sorte que les deux bords libres (26) du segment central peuvent s'appliquer contre les bords libres (22) des segments latéraux (32) pour maintenir la pièce secondaire (14) en sandwich dans la pièce principale (12), et que le segment central (24) et les deux segments latéraux (32) forment ensemble le second côté plat (32) du tube. - Tube plat selon la revendication 1, caractérisé en ce que chacun des bords libres (22) de la pièce principale (12) est replié à angle droit par rapport au segment latéral correspondant (20) et s'arrête à distance du premier côté plat (16) en ménageant un intervalle (i) de valeur donnée.
- Tube plat selon la revendication 2, caractérisé en ce que chacun des bords libres (26) de la pièce secondaire (14) est replié à angle droit par rapport au segment central (24) et se termine par un rebord (28) qui est sensiblement parallèle au segment central (24) et qui est propre à s'introduire dans un intervalle (i) de la pièce principale (12).
- Tube plat selon l'une des revendications 2 et 3, caractérisé en ce que la valeur de l'intervalle (i) est sensiblement égale à l'épaisseur de la bande métallique dont est formée la pièce secondaire (14).
- Tube plat selon l'une des revendications 1 à 4, caractérisé en ce que la pièce principale (12) et la pièce secondaire (14) sont obtenues par des opérations de roulage successives.
- Tube plat selon l'une des revendications 1 à 5, caractérisé en ce que la bande métallique dont est formée la pièce principale (12) est munie d'un placage de brasure sur l'une de ses faces (FE) qui s'étend vers l'extérieur.
- Tube plat selon l'une des revendications 1 à 6, caractérisé en ce que la bande métallique dont est formée la pièce secondaire (14) est munie d'un placage de brasure sur ses deux faces (FE, FI).
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9507513A FR2735853B1 (fr) | 1995-06-22 | 1995-06-22 | Tube plat pour echangeur de chaleur |
FR9507513 | 1995-06-22 | ||
PCT/FR1996/000939 WO1997001071A1 (fr) | 1995-06-22 | 1996-06-18 | Tube plat pour echangeur de chaleur |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0776454A1 EP0776454A1 (fr) | 1997-06-04 |
EP0776454B1 true EP0776454B1 (fr) | 1998-05-20 |
Family
ID=9480295
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96922944A Expired - Lifetime EP0776454B1 (fr) | 1995-06-22 | 1996-06-18 | Tube plat pour echangeur de chaleur |
Country Status (7)
Country | Link |
---|---|
US (1) | US5704423A (fr) |
EP (1) | EP0776454B1 (fr) |
KR (1) | KR970705731A (fr) |
DE (1) | DE69600309T2 (fr) |
ES (1) | ES2117900T3 (fr) |
FR (1) | FR2735853B1 (fr) |
WO (1) | WO1997001071A1 (fr) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3829242B2 (ja) * | 1996-02-28 | 2006-10-04 | 敬 高橋 | 扁平配管 |
US5956846A (en) * | 1997-03-21 | 1999-09-28 | Livernois Research & Development Co. | Method and apparatus for controlled atmosphere brazing of unwelded tubes |
FR2769358B1 (fr) * | 1997-10-02 | 2000-01-28 | Valeo Thermique Moteur Sa | Tube plat a plusieurs canaux pour echangeur de chaleur |
FR2772901B1 (fr) * | 1997-12-23 | 2000-03-03 | Valeo Thermique Moteur Sa | Tube plie et brase pour echangeur de chaleur, et echangeur de chaleur comportant de tels tubes |
GB0101697D0 (en) * | 2001-01-23 | 2001-03-07 | Emerson & Renwick Ltd | Heat exchanger tube |
US6530514B2 (en) | 2001-06-28 | 2003-03-11 | Outokumpu Oyj | Method of manufacturing heat transfer tubes |
US6467535B1 (en) * | 2001-08-29 | 2002-10-22 | Visteon Global Technologies, Inc. | Extruded microchannel heat exchanger |
US20080279222A1 (en) * | 2001-10-18 | 2008-11-13 | Level 3 Communications Llc | Distribution of traffic across a computer network |
DE10201512A1 (de) * | 2002-01-17 | 2003-07-31 | Behr Gmbh & Co | Mehrkammerflachrohr |
US7032808B2 (en) * | 2003-10-06 | 2006-04-25 | Outokumu Oyj | Thermal spray application of brazing material for manufacture of heat transfer devices |
US20080047141A1 (en) * | 2006-08-08 | 2008-02-28 | Inventec Corporation | Method for fabricating supporting column of heat sink |
US20080302518A1 (en) * | 2007-06-07 | 2008-12-11 | Joseph Durdel | Flat tube heat exchanger |
DE102007039292A1 (de) * | 2007-08-20 | 2009-02-26 | Behr Gmbh & Co. Kg | Mehrkammer-Flachrohr, Wärmetauscher und Verwendung eines Wärmetauschers |
FR2956949B1 (fr) | 2010-03-04 | 2013-04-19 | Pelle Equipements | Dispositif de cuisson de produits alimentaires a base de pate et filet de cuisson. |
EP2584301B1 (fr) | 2011-10-19 | 2014-08-13 | WS-Wärmeprozesstechnik GmbH | Caloporteur à température élevée |
US9302337B2 (en) * | 2012-08-09 | 2016-04-05 | Modine Manufacturing Company | Heat exchanger tube, heat exchanger tube assembly, and methods of making the same |
US9015923B2 (en) | 2012-08-09 | 2015-04-28 | Modine Manufacturing Company | Heat exchanger tube, heat exchanger tube assembly, and methods of making the same |
EE01330U1 (et) * | 2012-09-14 | 2016-01-15 | Revent International Ab | Kuumaõhuahi |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE805785C (de) * | 1949-12-30 | 1951-05-31 | Friedrich Karl Rosenbaum | Geschweisster Plattenheizkoerper |
FR1573193A (fr) * | 1968-04-17 | 1969-07-04 | ||
CH626160A5 (fr) * | 1977-10-14 | 1981-10-30 | Bogatzki Hans Ulrich | |
US4805693A (en) * | 1986-11-20 | 1989-02-21 | Modine Manufacturing | Multiple piece tube assembly for use in heat exchangers |
DE3725602A1 (de) * | 1987-08-01 | 1989-02-09 | Sueddeutsche Kuehler Behr | Flachrohr fuer einen waermetauscher |
US5186251A (en) * | 1992-06-01 | 1993-02-16 | General Motors Corporation | Roll formed heat exchanger tubing with double row flow passes |
GB2268260A (en) * | 1992-06-24 | 1994-01-05 | Llanelli Radiators Ltd | Heat exchange tubes formed from a unitary portion of sheet or strip material |
US5441105A (en) * | 1993-11-18 | 1995-08-15 | Wynn's Climate Systems, Inc. | Folded parallel flow condenser tube |
US5511613A (en) * | 1994-12-12 | 1996-04-30 | Hudson Products Corporation | Elongated heat exchanger tubes having internal stiffening structure |
-
1995
- 1995-06-22 FR FR9507513A patent/FR2735853B1/fr not_active Expired - Lifetime
-
1996
- 1996-06-18 WO PCT/FR1996/000939 patent/WO1997001071A1/fr not_active Application Discontinuation
- 1996-06-18 EP EP96922944A patent/EP0776454B1/fr not_active Expired - Lifetime
- 1996-06-18 DE DE69600309T patent/DE69600309T2/de not_active Expired - Lifetime
- 1996-06-18 ES ES96922944T patent/ES2117900T3/es not_active Expired - Lifetime
- 1996-06-18 KR KR1019970701125A patent/KR970705731A/ko not_active Application Discontinuation
- 1996-08-18 US US08/793,245 patent/US5704423A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US5704423A (en) | 1998-01-06 |
FR2735853B1 (fr) | 1997-08-01 |
DE69600309D1 (de) | 1998-06-25 |
FR2735853A1 (fr) | 1996-12-27 |
KR970705731A (ko) | 1997-10-09 |
DE69600309T2 (de) | 1998-09-10 |
EP0776454A1 (fr) | 1997-06-04 |
ES2117900T3 (es) | 1998-08-16 |
WO1997001071A1 (fr) | 1997-01-09 |
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Legal Events
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