EP1243885A2 - Wärmetauscher und Herstellungsverfahren - Google Patents
Wärmetauscher und Herstellungsverfahren Download PDFInfo
- Publication number
- EP1243885A2 EP1243885A2 EP02002238A EP02002238A EP1243885A2 EP 1243885 A2 EP1243885 A2 EP 1243885A2 EP 02002238 A EP02002238 A EP 02002238A EP 02002238 A EP02002238 A EP 02002238A EP 1243885 A2 EP1243885 A2 EP 1243885A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- heat exchanger
- exchanger tubes
- tube
- tubes
- bent
- 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- Withdrawn
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 238000000034 method Methods 0.000 title claims abstract description 7
- 238000005452 bending Methods 0.000 claims description 18
- 238000005520 cutting process Methods 0.000 claims description 4
- 238000005476 soldering Methods 0.000 description 5
- 229910000679 solder Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Images
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
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/04—Arrangements for sealing elements into header boxes or end plates
- F28F9/16—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling
- F28F9/18—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by welding
- F28F9/182—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by welding the heat-exchange conduits having ends with a particular shape, e.g. deformed; the heat-exchange conduits or end plates having supplementary joining means, e.g. abutments
-
- 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
-
- 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
- F28F9/02—Header boxes; End plates
- F28F9/0219—Arrangements for sealing end plates into casing or header box; Header box sub-elements
- F28F9/0224—Header boxes formed by sealing end plates into covers
- F28F9/0226—Header boxes formed by sealing end plates into covers with resilient gaskets
-
- 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
Definitions
- the invention relates to a heat exchanger consisting of flat heat exchanger tubes, the ends of which are in associated openings provided with passages from tube sheets, protruding so far over the inside of the tube sheets, that the long sides of the flat heat exchanger tubes towards the tube plate are bendable, the tube sheets being connected to collecting boxes are.
- the invention further relates to a production method for the heat exchanger.
- the object of the present invention is therefore with essential simple, inexpensive means, in particular by dispensing with the deflection plate, a comparable reduction in pressure loss in the heat exchanger to realize.
- the long sides at the ends of the flat heat exchanger tubes are bent so far that the ends of the long sides are adjacent Heat exchanger tubes a streamlined surface above the tube sheet form, which includes the flow funnels of the heat exchanger tubes.
- the narrow sides of the heat exchanger tubes have one Parting cut or a cutout.
- the stiffness the bent ends is improved if the bend angle is slightly smaller than 90 °, for example 85-89 °, the aerodynamic surface being maintained remains. Particularly in the case of strongly deformed tube sheets, the inventive sheets occur Effects even if the bending angle is slightly larger than 90 ° is chosen.
- the present invention is particularly effective in an easily understandable manner, if tube sheets are used, the ones arranged around the openings Draws in the direction of the collection box. Such passages are easier to manufacture and therefore more common. However, you have Hitherto always led to a higher pressure drop, which is significant due to the invention was improved. Nevertheless, the invention can also be used with such tube sheets are used, their passages towards the heat exchanger network point, the bent ends then directly on the inside of the tube sheet issue.
- the manufacturing method according to the invention provides that the opposite Narrow sides of the flat heat exchanger tubes are first cut, after which the opposite long sides bent so far outwards be that they are together with the long sides of adjacent heat exchanger tubes result in a streamlined surface above the inside of the tube sheet.
- the cutting process and the bending process is preferably carried out using a forming tool performed in a single operation.
- the heat exchanger consists of a single row of flat heat exchanger tubes 1 and fins 2 arranged between them, which form a so-called fin-tube block.
- a tube plate 4 At both ends 3 of the heat exchanger tubes 1 , of which only one end 3 is shown because the other end 3 is of identical design, there is a tube plate 4 .
- the tube sheet 4 has a number of openings 5 which correspond to the ends 3 of the heat exchanger tubes 1 , ie the ends 3 fit into the openings 5 .
- Each opening 5 is surrounded by a passage 6 which, in the exemplary embodiment, is oriented towards the collecting box 7 .
- the collecting box 7 is connected with its edge 8 in the U-shaped edge 9 of the associated tube sheet 4 with the addition of a seal 10 .
- the tube sheet 4 can also be different from the design shown.
- a U-shaped shape of the tube sheet 4 can be selected, in which the longitudinal walls 20 of the collecting tank 7 are part of the tube sheet 4 .
- Such a tube sheet 4 can simply be closed with a cover, not shown, so that the collecting box 7 is created.
- the collecting box 7 by reshaping the longitudinal walls 20 , the reshaped longitudinal walls 20 touching in a seam which is connected, for example, by means of soldering.
- the tube sheet 4 and the header box 7 are made in one piece.
- the fin-tube block is assembled by stacking flat heat exchanger tubes 1 and corrugated fins 2 in an alternating sequence. Thereafter, depending on a tube plate 4 fitted with its provided with rim holes 6 openings 5 on the ends 3 of the flat heat diver tubes 1, so that the ends 3 survive well over the inside 13 of the tube sheets. 4 The amount of the overhang is approximately half the distance 16 (FIG. 3) between the flat tubes 1 , in order to ensure that an approximately closed, aerodynamic surface 15 can subsequently be created.
- the bending angle ⁇ of each end 3 is approximately 90 °, as can also be seen from FIG. 3. It should be noted that the bending can be carried out itself, in contrast to in Fig. 3 example shown, with a much smaller bending radius so that the parallel to the tube plate 4 is surface 15 closer to the tubesheet 4. 3, the first two heat exchanger tubes 1 from the left have been shown with straight ends 3 that have not been bent over.
- a neck 31 instead of the cuts 17 is provided on two narrow sides 12 respectively and to improve the bending of the ends 3 in order to avoid that the area created by the bending 15 of the erected after the bending narrow sides 17 is impaired in its conductivity, which is described below in FIG. 7.
- FIG. 4 shows the first production stage in a section parallel to the longitudinal side 11 of the heat exchanger tube 1 , the bending punch 21 being inserted into the opening of the heat exchanger tube 1 from above.
- the punch 21 stabilizes the heat exchanger tube 1 and forms an abutment for the two cutting punches 22 which act in the direction of the longitudinal sides 11 at both narrow sides 12 and apply there ever a separating cut 17th
- the punch 21 is inserted deeper into the end 3 of the bending punch 21 act to the bending edges 23 to the longitudinal sides 11, so that both longitudinal sides 11 are bent approximately by 90 °.
- FIG. 5 represents the section V - V from FIG. 4.
- the shaping tool has a plurality of such bends and cutting punches 21, 22 corresponding to the number of ends 3 of the heat exchanger tubes 1, so that all tube ends 3 , as shown, can be reshaped in one operation. From the illustrations it is also clear that the bent ends 3 hold the tube 1- ribs 2 - block firmly together via the two tube sheets 4 , so that no further auxiliary devices are required for the soldering process.
- the longitudinal sides 11 of the ends 3 are slightly overlapped. You point an overlap 30.
- the overlap 30 is designed so that the overhead End 3 of a heat exchanger tube 1 closer to the inflow opening 32 lies in the collecting box 7 as the lower end 3 of the adjacent one Heat exchanger tube 1.
- Fig. 7 shows an embodiment of the heat exchanger, which is particularly is suitable if flat heat exchanger tubes 1 are used, the Narrow sides 12 are a little wider.
- Such heat exchangers are, for example Intercooler.
- the cut 17 consists in the Narrow sides 12 of the ends 3 in a cutout 31, around the narrow sides 12 in to remove this area at least partially. After bending the ends 3 are therefore no disturbing narrow sides protruding into the collecting box 7 12 left, which could lead to an undesirable pressure loss.
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)
Abstract
Description
Claims (7)
- Wärmetauscher, bestehend aus flachen Wärmetauscherrohren (1), deren Enden (3) in zugeordneten mit Durchzügen (6) versehenen Öffnungen (5) von Rohrböden (4) stecken, wobei sie so weit über die Innenseite (13) der Rohrböden (4) ragen, daß die Längsseiten (11) der flachen Wärmetauscherrohre (1) in Richtung zum Rohrboden (4) hin umbiegbar sind, wobei die Rohrböden (4) mit Sammelkästen (7) zusammenwirken,
dadurch gekennzeichnet, daß
die Schmalseiten (12) der flachen Wärmetauscherrohre (1) an ihren Enden (3) einen Trennschnitt (17) oder einen Ausschnitt (31) aufweisen und
die Längsseiten (11) an den Enden (3) der flachen Wärmetauscherrohre (1) so weit umgebogen sind, daß die Enden (3) der Längsseiten (11) benachbarter Wärmetauscherrohre (1) eine strömungsgünstige Fläche (15) über dem Rohrboden (4) bilden, die Strömungstrichter (26) der Wärmetauscherrohre (1) einschließt. - Wärmetauscher nach Anspruch 1, dadurch gekennzeichnet, daß der Überstand der noch nicht umgebogenen Enden (3) der Wärmetauscherrohre (1) über dem Rohrboden (4) betragsmäßig unter Berücksichtigung der Biegeradien etwa die Hälfte des Abstandes (16) zwischen den Wärmetauscherrohren (1) ist, so daß die um etwa 90° umgebogenen Enden (3) benachbarter, flacher Wärmetauscherrohre (1)möglichst eng aneinanderliegen oder sich geringfügig überlappen (30) oder lediglich einen sehr geringen Abstand (Spalt 25) besitzen.
- Wärmetauscher nach Anspruch 1 und 2, dadurch gekennzeichnet, daß die Durchzüge (6) an den Öffnungen (5) in den Rohrböden (4) nach innen, zum Sammelkasten (7) hin, gerichtet sind, wobei entweder die Rohrböden (4) mit Sammelkasten (7) mechanisch dicht verbunden oder Rohrboden (4) und Sammelkasten (7) einteilig ausgebildet sind.
- Wärmetauscher nach einem der Ansprüche 1 bis 3 , dadurch gekennzeichnet, daß die Fläche (15) etwa parallel zur Ebene des Rohrbodens (4) abgeordnet ist.
- Wärmetauscher nach Anspruch 2, dadurch gekennzeichnet, daß bei sich überlappenden Enden (3) benachbarter, flacher Wärmetauscherrohre (1) und bei an einer Stirnseite des Sammelkastens (7) oder in deren Nähe angeordneter Einströmöffnung (32) das oben liegende Ende (3) eines Wärmetauscherrohres (1) näher an der Einströmöffnung (32) in den Sammelkasten (7) liegt als das unten liegende Ende (3) des benachbarten Wärmetauscherrohres (1).
- Verfahren zur Herstellung der Wärmetauscher, bei dem ein Rippen - RohrBlock zusammengefügt wird und auf die Enden (3) der flachen Wärmetauscherrohre (1) Rohrböden (4) aufgesetzt werden, derart, daß sie mit ihren Durchzüge (6) aufweisenden Öffnungen (5) so weit über die Enden (3) der Wärmetauscherrohre (1) geschoben werden, daß dieselben über der Innenseite (13) der Rohrböden (4) überstehen und umgebogen werden,
dadurch gekennzeichnet, daß
die gegenüberliegenden Schmalseiten (12) der Enden (3) der Wärmetauscherrohre (1) aufgespaltet (17) werden und die gegenüberliegenden Längsseiten (11) der Enden (3) der Wärmetauscherohre (1) soweit abgebogen werden, daß sie gemeinsam mit den Längsseiten (11) benachbarter Wärmetauscherrohre (1) eine strömungsgünstige Fläche (15) über der Innenseite (13) des Rohrbodens (4) ergeben. - Verfahren nach Anspruch 8, dadurch gekennzeichnet, daß der Auftrennvorgang und der Abbiegevorgang in einem Werkzeug in einem einzigen Arbeitsgang durchgeführt wird.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10114078A DE10114078A1 (de) | 2001-03-22 | 2001-03-22 | Wärmetauscher und Herstellungsverfahren |
DE10114078 | 2001-03-22 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1243885A2 true EP1243885A2 (de) | 2002-09-25 |
EP1243885A3 EP1243885A3 (de) | 2004-02-11 |
Family
ID=7678588
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02002238A Withdrawn EP1243885A3 (de) | 2001-03-22 | 2002-01-30 | Wärmetauscher und Herstellungsverfahren |
Country Status (3)
Country | Link |
---|---|
US (1) | US6971444B2 (de) |
EP (1) | EP1243885A3 (de) |
DE (1) | DE10114078A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2216527A3 (de) * | 2009-02-06 | 2010-10-06 | Paccar Inc | Ladeluftkühler |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10256869A1 (de) * | 2002-12-04 | 2004-06-24 | Behr Gmbh & Co. Kg | Wärmeübertrager |
JP2005121350A (ja) * | 2003-05-29 | 2005-05-12 | Denso Corp | 熱交換器およびその製造方法 |
DE102006048484A1 (de) * | 2006-10-11 | 2008-04-17 | Behr Gmbh & Co. Kg | Wärmeübertrager mit Flachrohren und Verfahren zur Herstellung eines solchen Wärmeübertragers |
US8322407B2 (en) * | 2008-04-29 | 2012-12-04 | Honda Motor Co., Ltd. | Heat exchanger with pressure reduction |
KR101151553B1 (ko) * | 2009-04-20 | 2012-06-14 | 주식회사 경동나비엔 | 열교환기에서 고정판과 유로캡을 브레이징 용접하는 방법 및 그에 따른 열교환기 |
FR3035489B1 (fr) * | 2015-04-27 | 2017-05-05 | Valeo Systemes Thermiques | Joint annulaire pour echangeur de chaleur de vehicule automobile |
RU2708181C1 (ru) * | 2016-05-03 | 2019-12-04 | Кэрриер Корпорейшн | Установка теплообменника |
DE102018219171A1 (de) * | 2018-06-29 | 2020-01-02 | Hanon Systems | Batteriekühler |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19857435A1 (de) | 1997-12-22 | 1999-06-24 | Valeo Thermique Moteur Sa | Wärmetauscher, insbesondere Ladeluftkühler, für Kraftfahrzeuge |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3021804A (en) * | 1955-02-18 | 1962-02-20 | Modine Mfg Co | Method of fabricating heat exchangers |
US3589440A (en) * | 1969-12-01 | 1971-06-29 | Modine Mfg Co | Tube and header construction |
US3972371A (en) * | 1972-04-26 | 1976-08-03 | Societe Anonyme Des Usines Chausson | Tube and tube-plate assembly |
FR2525337B1 (fr) * | 1982-04-16 | 1986-01-31 | Chausson Usines Sa | Procede pour le renfort au moyen de plaquettes au moins des rangees d'extremite des tubes engages dans des plaques collectrices pour constituer un echangeur de chaleur et echangeur en faisant application |
US4513811A (en) * | 1983-09-09 | 1985-04-30 | Ex-Cell-O Corporation | Heat exchanger |
US5067235A (en) * | 1990-05-04 | 1991-11-26 | Toyo Radiator Co., Ltd. | Method for joining heat exchanger tubes with headers |
JPH05157488A (ja) * | 1991-12-06 | 1993-06-22 | Suzuki Motor Corp | ラジエター |
JP3125834B2 (ja) * | 1993-09-01 | 2001-01-22 | 株式会社デンソー | 熱交換器およびその製造方法 |
FR2738905B1 (fr) * | 1995-09-20 | 1997-12-05 | Valeo Climatisation | Tube d'echangeur de chaleur a canaux de circulation a contre-courant |
JPH09280781A (ja) * | 1996-04-17 | 1997-10-31 | Sanden Corp | 多管式熱交換器 |
DE19757034A1 (de) * | 1997-12-20 | 1999-06-24 | Behr Gmbh & Co | Wärmetauscher, insbesondere Ladeluftkühler |
CA2273456C (en) * | 1999-06-02 | 2008-09-23 | Long Manufacturing Ltd. | Clip on manifold heat exchanger |
-
2001
- 2001-03-22 DE DE10114078A patent/DE10114078A1/de not_active Withdrawn
-
2002
- 2002-01-30 EP EP02002238A patent/EP1243885A3/de not_active Withdrawn
- 2002-02-27 US US10/086,237 patent/US6971444B2/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19857435A1 (de) | 1997-12-22 | 1999-06-24 | Valeo Thermique Moteur Sa | Wärmetauscher, insbesondere Ladeluftkühler, für Kraftfahrzeuge |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2216527A3 (de) * | 2009-02-06 | 2010-10-06 | Paccar Inc | Ladeluftkühler |
Also Published As
Publication number | Publication date |
---|---|
EP1243885A3 (de) | 2004-02-11 |
US6971444B2 (en) | 2005-12-06 |
DE10114078A1 (de) | 2002-09-26 |
US20020138981A1 (en) | 2002-10-03 |
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