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WO2008103502A1 - Echangeur de chaleur, procédé de fabrication d'un échangeur de chaleur, et train de rouleaux pour fabriquer des tubes d'échangeur de chaleur - Google Patents

Echangeur de chaleur, procédé de fabrication d'un échangeur de chaleur, et train de rouleaux pour fabriquer des tubes d'échangeur de chaleur Download PDF

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Publication number
WO2008103502A1
WO2008103502A1 PCT/US2008/050586 US2008050586W WO2008103502A1 WO 2008103502 A1 WO2008103502 A1 WO 2008103502A1 US 2008050586 W US2008050586 W US 2008050586W WO 2008103502 A1 WO2008103502 A1 WO 2008103502A1
Authority
WO
WIPO (PCT)
Prior art keywords
flat tubes
heat exchanger
fins
tubes
corrugations
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.)
Ceased
Application number
PCT/US2008/050586
Other languages
English (en)
Inventor
Frank Opferkuch
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.)
Modine Manufacturing Co
Original Assignee
Modine Manufacturing Co
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 Modine Manufacturing Co filed Critical Modine Manufacturing Co
Publication of WO2008103502A1 publication Critical patent/WO2008103502A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
    • F28F3/025—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being corrugated, plate-like elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, rods, wire, tubes, profiles 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, rods, wire, tubes, profiles 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
    • B21C37/155—Making tubes with non-circular section
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, rods, wire, tubes, profiles 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
    • B21C37/156—Making tubes with wall irregularities
    • B21C37/157—Perforations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, rods, wire, tubes, profiles 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
    • B21C37/22—Making finned or ribbed tubes by fixing strip or like material to tubes
    • B21C37/225—Making finned or ribbed tubes by fixing strip or like material to tubes longitudinally-ribbed tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F1/00—Bending wire other than coiling; Straightening wire
    • B21F1/04—Undulating
    • 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
    • F28D1/047—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 bent, e.g. in a serpentine or zig-zag
    • F28D1/0477—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 bent, e.g. in a serpentine or zig-zag the conduits being bent in a serpentine or zig-zag
    • F28D1/0478—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 bent, e.g. in a serpentine or zig-zag the conduits being bent in a serpentine or zig-zag the conduits having a non-circular cross-section
    • 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
    • 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
    • F28F2225/00—Reinforcing means
    • F28F2225/04—Reinforcing means for conduits

Definitions

  • HEAT EXCHANGER METHOD OF MANUFACTURING A HEAT EXCHANGER, AND ROLLER TRAIN FOR MANUFACTURING HEAT EXCHANGER TUBES
  • the present invention relates to a heat exchanger network composed of flat tubes having two narrow sides and two broad sides and having fins arranged between the broad sides of adjacent flat tubes.
  • a medium is able to flow through at least some of the successive flat tubes in parallel.
  • Another medium flows approximately transversely thereto as a result of the fins and the broad sides of the flat tubes having shaped portions in order to influence the flow in the flat tubes.
  • the invention relates to a manufacturing method for flat tubes which are a component of the heat exchanger network. The manufacturing method can be carried out on a roller train.
  • the invention relates to a roller train with which the manufacturing method for flat tubes can be carried out.
  • heat exchangers with heat exchanger networks whose flat tubes are shaped in a serpentine-like manner are part of the prior art.
  • the relatively long flat tubes have bends through 180°, the fins being arranged between successive bends.
  • medium does not flow through the flat tubes in parallel, in contrast to the heat exchanger networks specified above. Instead, the medium flows, as it were, to and fro in order to pass through the individual flat tube sections between the bends and in order to thus pass from the inlet to the outlet.
  • Such heat exchanger networks cannot be made as compact as would be desired because of the aforementioned numerous bends.
  • the compactness is limited because the bending radii cannot be less than a specific lower limit. Excessively small bending radii could close the flat tubes or cause the heat exchanger to become incapable of functioning.
  • These heat exchangers are also often found to have an excessively high pressure loss because of the numerous deflections of the medium flowing in the tubes.
  • heat exchangers of what is referred to as the tube bundle design which do not have any heat exchanger networks in the above sense.
  • a bundle usually composed of round tubes enclosed in a housing.
  • the wall of the individual tubes can be, for example, shaped in the manner of a spiral or in some other way.
  • One medium flows through the tubes and the other medium flows in and out of the housing, in which case, on the way from the inlet to the outlet, the medium flows through the gaps between the tubes of the bundle.
  • Such heat exchangers usually do not have any fins between the tubes.
  • these tubes have only wall deformations. These are usually shaped in such a way that the tubes continue to extend linearly.
  • One object of the invention is to develop a heat exchanger network design of the type described at the beginning, which is compact, competitive in terms of costs and can also achieve very good values in terms of heat exchanging efficiency.
  • the shaped portions prefferably be embodied as corrugations, running in or approximately in the longitudinal direction of the flat tubes, of the broad sides of the flat tubes, and for the corrugations to bear at least predominantly against the fins.
  • the narrow sides of the flat tubes also have the corrugations since they are part of the same flat tubes.
  • the corrugations of the broad sides and of the narrow sides oscillate progressively about an imaginary plane which lies in the broad sides (not yet corrugated).
  • the corrugations of the narrow sides in the preferred exemplary embodiment do not oscillate about another plane which is perpendicular to the aforesaid plane, that is to say about a plane which lies in the narrow sides.
  • the heat exchanger network can have all types of flat tubes, those which have been manufactured, for example, in an extrusion method or those which have been manufactured, for example, as welded flat tubes, or those which have been manufactured according to the manufacturing method described below.
  • these last-mentioned flat tubes are preferably used because they can be equipped with an extremely small wall thickness owing to the manufacturing method.
  • a network which is developed according to the invention has a better heat exchanging efficiency because the heat-exchanging surfaces are enlarged.
  • the heat exchanger network according to the proposal can, completely without problems, be made precisely as compact as what is referred to as a high-performance cooling network from the prior art, which has flat tubes without corrugations.
  • the manufacturing costs are competitive in all cases, in particular if the fact that the wall thickness of the flat tubes has been drastically reduced is taken into account.
  • the corrugations are preferably flat corrugations which correspondingly have relatively large corrugation lengths and comparatively small corrugation heights, the pressure loss varies within very moderate ranges.
  • the pressure loss can be influenced by the corrugation geometry.
  • each flat tube be essentially retained by the corrugations. It is further preferably provided that the parallelism of the arrangement of the flat tubes which is known in the prior art is essentially retained after the corrugation.
  • the broad sides are, with the exception of the corrugations, otherwise planar, that is to say they do not have any local impressions or projections. For this reason, despite the corrugations, good soldering results between the flat tubes and the fins are achieved.
  • the flat tubes be capable of being manufactured from at least one continuous, shaped sheet metal strip on a roller train or on a fabrication line and that the two narrow sides of the flat tubes be reinforced.
  • the wall thickness of the flat tubes or the thickness of the at least one sheet metal strip be in the range from 0.03 mm - 0.20 mm.
  • the manufacturing method for flat tubes which are a component of a heat exchanger network and which are manufactured from at least one strip of continuous ribbon- shaped material with at least one wall part and one inner part which is embodied with corrugations, on a roller train which is equipped with pairs of rollers, the strip running through the rollers in the longitudinal direction and being shaped, the inner part which is embodied with corrugations being placed between the shaped wall part, after which the flat tube is closed and finally individual flat tubes are cut to length, provides according to the invention that after the closing and before the cutting to length the broad sides of the flat tubes are provided with a corrugation which runs in the longitudinal direction of the flat tubes.
  • the method ensures economic manufacture of the flat tubes with a very small wall thickness and in large numbers.
  • the corrugations of the inner part result in flat tubes which have ducts running in their longitudinal direction.
  • the ducts can be discrete ducts or else ducts which have a flow connection with one another.
  • roller train for carrying out the method for manufacturing flat tubes composed of at least one continuous strip of ribbon-shaped material, the roller train having at least one section for shaping the strip, a section for joining the strip to the tube and a cutting station for tubes
  • a shaping station with which it is possible to manufacture a corrugation running in the longitudinal direction of the flat tubes, on the broad sides of the flat tubes, be arranged between the joining section and the cutting station.
  • the preferred flat tube which is manufactured according to the manufacturing method and has a corrugated inner part can be considered advantageous because the corrugated inner part can prevent the flat tubes from collapsing or can at least counteract collapsing.
  • the pressure forces are preferably applied with pressure elements (auxiliary devices) whose surface is also embodied with corrugations, in which case the corrugations in the pressure elements should correspond to the corrugations of the flat tubes.
  • the thickness of the ribbon from which the fins are manufactured is also in the range from 0.03 - 0.09 mm.
  • the heat exchanger networks are subject to a soldering method, usually a CAB soldering method.
  • a soldering method usually a CAB soldering method.
  • both the individual flat tubes and the flat tubes with the fins are soldered securely.
  • the material is particularly preferably aluminum or an aluminum alloy. However, it is readily apparent that other solderable metals are likewise suitable.
  • Figures 1 and 2 show respectively an unshaped flat tube and a flat tube which is formed with corrugations according to some embodiments of the present invention.
  • Figure 3 shows a portion of a heat exchanger network according to Figure 4.
  • Figures 5 and 6 show the formation of corrugations.
  • Figures 7 and 8 show a moment during the manufacture of the heat exchanger network.
  • Figures 9 and 10 show a preferred fiat tube.
  • Figure 11 is a diagrammatic representation of a roller train according to some embodiments of the present invention.
  • the flat tubes of the heat exchanger network are manufactured on a roller train or fabrication line which is illustrated in a basic form in Figure 11.
  • the flat tubes are manufactured from "continuous" sheet-metal ribbons.
  • the flat tubes are manufactured from a single sheet-metal ribbon or from two sheet-metal ribbons.
  • the applicant refers to the following earlier German Patent Application Nos. DE 10 2006 006 670.7, DE 10 2006 041 270.2, DE 10 2006 002 789.2, and DE 10 2006 035 210.6, all of which are hereby incorporated by reference.
  • flat tubes composed of a single sheet-metal ribbon or of two sheet-metal ribbons are described and shown.
  • the flat tubes are suitable in the same way to be used in the heat exchanger network, for the exemplary embodiment present here in which one wall part a of the flat tube is produced from one sheet-metal ribbon and the other wall part b of the flat tube is produced from the second sheet-metal ribbon, and the inner part c is produced from the third sheet-metal ribbon.
  • Figure 10 shows a completed flat tube in cross section
  • Figure 9 shows a situation in the course of manufacture of the flat tubes, specifically the situation which is present for example in the joining section V of the roller train in which the inner part c is placed between the two wall parts a, b.
  • Figures 9 and 10 also show that the two wall parts a and b are of substantially identical design. They have a relatively large curve at one of their edges, and have a smaller curve on their other edge. In the moment shown in Figure 9, the smaller curves have already been completed and the larger curves are already preformed.
  • the inner part c is firstly provided obliquely between the two wall parts a, b, and the wall parts a, b are moved toward one another and the flat tube is closed by positioning the two larger curves around the smaller curves, as a result of which the narrow sides 10 of the flat tube are formed.
  • a double wall thickness which constitutes the aforementioned reinforcement of the narrow sides 10 is produced in the narrow sides 10.
  • the narrow sides 10 can also be reinforced by virtue of the fact that the two longitudinal edges of the inner part c bear in the narrow sides 10.
  • the longitudinal edges of the inner part c can, as is apparent, also be shaped with a small curve for this purpose.
  • the wall thickness of the two wall parts a, b can be in the range from 0.03 mm - 0.20 mm or 0.15 mm.
  • the wall thickness of the inner part c is preferably in the range from 0.03 mm - 0.09 mm.
  • the flat tube has ducts 30 which extend in the longitudinal direction and can be seen in the cross section according to Figure 10.
  • Figure 1 1 also shows that, for individual flat tubes, a shaping station W with which corrugations 15 running in the longitudinal direction LR of the flat tube 1 are formed on the broad sides 20 is positioned between the already mentioned joining station V and the cutting station A arranged at the end of the roller train.
  • a possible embodiment of the shaping station W is illustrated in principle in Figure 5. It is composed of three pairs of rollers.
  • the first pair of rollers in the running direction or in the longitudinal direction of the flat tube is rigid, that is to say it is composed of two centrally mounted rotating rollers between which the continuous flat tube runs and it keeps the latter at the predefined height level.
  • the pair of rollers which follows directly is embodied in the manner of wobble plates with off-center axes of rotation.
  • the rotation of this pair of rollers leads to an oscillating movement of the gap between the two rollers in which the flat tube runs, as a result of which the corrugations are formed.
  • the third pair of rollers also makes the oscillating movements.
  • three pairs of rollers with central axes of rotation for manufacturing the corrugations are present.
  • the first pair of rollers is also of rigid construction here.
  • the central pair of rollers and the last pair of rollers can be moved vertically, that is to say that they also carry out oscillating movements (double arrows), as a result of which the corrugations can be manufactured.
  • Figure 1 shows a short detail of a flat tube which has not yet been provided with corrugations, as a view on one of the narrow sides 10 of the flat tube.
  • Figure 2 shows the same view of a flat tube in which the corrugations 15 are already formed.
  • the dashed line shows the center plane of the flat tube about which the corrugations 15 oscillate progressively.
  • the corrugations 15 in the exemplary embodiment shown are formed with significantly larger corrugation lengths than amplitudes (corrugation heights), for which reason the corrugations 15 are rather flat.
  • the corrugations 15 preferably run in the longitudinal direction LR of the flat tube.
  • running direction of the corrugations is intended to signify a direction which is perpendicular to the edges of the corrugations, as it were the direction of flow in the waves of a liquid.
  • Figure 4 shows a view of a heat exchanger network composed of flat tubes 1 and fins 3, and Figures 7 and 8 show the manufacture of the network with sufficient clarity.
  • Figures 7 and 8 show the manufacture of the network with sufficient clarity.
  • the cooling air flows through the corrugated fins 3 in the direction of the depth (not indicated) of the cooling network.
  • the illustration shows that the running direction of the corrugations of the corrugated fins 3 lies in the running direction of the corrugations 15 of the broad sides of the flat tubes.
  • the individual flat tubes 1 which are cut to size and are formed with the corrugations 15 are then stacked alternately with corrugated fins 3 of the flat-top design.
  • An auxiliary device 50 can be used, as shown in Figures 7 and 8, to press the network, the flat tubes 1 and the fins 3 together.
  • the auxiliary device 50 is also provided with a corrugation 51 which should correspond approximately to the corrugation 15 of the flat tubes 1.
  • FIG 3 shows an enlarged detail of the network in which it is possible to see that the design of the fins 3 which is used fits more snugly against the broad sides 20 of the corrugated flat tubes 1 than would be possible for corrugated fins 3 with rounded corrugation summits and corrugation valleys.
  • the geometry of the flat-top fins is changed somewhat by the pressing process, which is also apparent from a comparison of Figures 7 and 8.
  • the individual edges of the fins 3 assume, under the effect of the forces, a position approximately perpendicular to the surface of the corrugated broad sides 20.
  • the otherwise often criticized disadvantage of flat-top fins easily bending is converted to an advantage here.
  • the soldering process of the heat exchanger network is carried out (not shown).
  • the fins 3 are manufactured from aluminum ribbon- shaped material with a thickness 0.03 mm - 0.09 mm.
  • the rib height h ( Figure 7) is approximately between 3 mm - 9 mm or somewhat more.
  • the flat tubes have, for example for an individual application as a radiator, a small dimension d ( Figure 9) of not much more than 1.0 mm, for which reason the tubes 1 and fins 3 can be arranged in a very compact fashion.
  • the use of the aforementioned small sheet-metal thicknesses and rib heights permits more tubes 1 and fins 3 to be arranged in the same installation space, which proves advantageous as it enlarges the heat-exchanging surfaces.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

L'invention concerne un réseau d'échangeurs de chaleur composé de tubes plats ayant deux côtés étroits et deux côtés larges, et ayant des ailettes agencées entre les côtés larges des tubes plats adjacents. Un milieu peut s'écouler à travers au moins certains des tubes plats successifs en parallèle. Un autre milieu peut s'écouler de manière approximativement transversale vers ceux-ci en raison des ailettes et des deux côtés larges des tubes plats ayant des parties mises en forme afin d'influencer l'écoulement dans les tubes plats. Selon l'invention, les surfaces d'échange de chaleur sont agrandies en vertu du fait que les parties mises en forme sont sous la forme d'ondulations, s'étendant dans la direction longitudinale des tubes plats, des côtés larges des tubes plats, et que les ondulations s'appuient au moins de manière prédominante contre les ailettes.
PCT/US2008/050586 2007-02-21 2008-01-09 Echangeur de chaleur, procédé de fabrication d'un échangeur de chaleur, et train de rouleaux pour fabriquer des tubes d'échangeur de chaleur Ceased WO2008103502A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007008535A DE102007008535A1 (de) 2007-02-21 2007-02-21 Wärmetauschernetz, Herstellungsverfahren und Walzenstraße
DE102007008535.6 2007-02-21

Publications (1)

Publication Number Publication Date
WO2008103502A1 true WO2008103502A1 (fr) 2008-08-28

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2008/050586 Ceased WO2008103502A1 (fr) 2007-02-21 2008-01-09 Echangeur de chaleur, procédé de fabrication d'un échangeur de chaleur, et train de rouleaux pour fabriquer des tubes d'échangeur de chaleur

Country Status (2)

Country Link
DE (1) DE102007008535A1 (fr)
WO (1) WO2008103502A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201600111604A1 (it) * 2016-11-07 2018-05-07 Carmelo Vitale Radiatore, pressa e metodo
CN110230932A (zh) * 2019-05-27 2019-09-13 广东法拉达汽车散热器有限公司 一种曲管汽车散热器

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Publication number Priority date Publication date Assignee Title
US6151949A (en) * 1999-08-25 2000-11-28 Visteon Global Technologies, Inc. Method of manufacturing a flat corrugated tube
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US20050161208A1 (en) * 2002-06-11 2005-07-28 Sucke Norbert W. Hollow chamber profile made of metal, especially for heat exchangers

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