EP0733871B1 - Tube pour échangeur de chaleur - Google Patents

Tube pour échangeur de chaleur Download PDF

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Publication number
EP0733871B1
EP0733871B1 EP96103390A EP96103390A EP0733871B1 EP 0733871 B1 EP0733871 B1 EP 0733871B1 EP 96103390 A EP96103390 A EP 96103390A EP 96103390 A EP96103390 A EP 96103390A EP 0733871 B1 EP0733871 B1 EP 0733871B1
Authority
EP
European Patent Office
Prior art keywords
ribs
exchanger tube
tube according
hollows
longitudinal
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
Application number
EP96103390A
Other languages
German (de)
English (en)
Other versions
EP0733871A1 (fr
Inventor
Ulrich Naumann
Martin Schmidt
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.)
KM Europa Metal AG
Original Assignee
KM Europa Metal AG
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7757210&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0733871(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by KM Europa Metal AG filed Critical KM Europa Metal AG
Publication of EP0733871A1 publication Critical patent/EP0733871A1/fr
Application granted granted Critical
Publication of EP0733871B1 publication Critical patent/EP0733871B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • F28F1/40—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only inside the tubular element
    • 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
    • Y10S165/51—Heat exchange having heat exchange surface treatment, adjunct or enhancement
    • Y10S165/515—Patterned surface, e.g. knurled, grooved

Definitions

  • the invention relates to an exchanger tube for a heat exchanger according to the features in the preamble of the claim 1.
  • the troughs formed in the ribs are rolled manufactured.
  • the deformed from the ribs bulges Material into the channels at the front of the troughs.
  • the floors the troughs are at a distance from the canal bases.
  • the known exchanger tube is manufactured by that first in a two-stage rolling process Structure of the later inner surface on one side Metal band created, then the metal band into one Slotted tube with internal surface structure formed is and then the slot edges are welded.
  • the two-stage rolling of the inner surface structure leads at a high manufacturing cost.
  • the troughs of the ribs are created by rolling over an initially existing volume fraction of that in the first rolling step pronounced ribs. This former volume share the ribs are distributed only in the immediate vicinity. A notable reduction in meter weight can but cannot be achieved.
  • the object of the invention is based on the prior art is based on an exchanger tube with an internal surface structure to create, in which on the one hand the Advantages of an equally good evaporation or condensation performance connect with reduced rib weight and on the other hand, a one-stage for the production of the exchanger tube Embossing process can be applied.
  • the core of the invention is such an internal rough surface structure, which has only rounded transitions and avoids sharp edges. Consequently, it can be particularly advantageous Way the rough surface structure by roll embossing generated in a single stage.
  • the apparatus technology This significantly reduces effort.
  • the ribs rounded at the head have in particular the advantage that when pulling in an exchanger tube in fins of a heat exchanger, in particular by Widening by means of a moving through the exchanger tube Tool, the head areas of the ribs flattened only slightly be, so that with this also the formation of heavy tearable condensate films are effectively counteracted. Nevertheless, due to the large roughness due to the micro Rib surfaces which are advantageous for effective evaporation large number of projections, edges, tips and depressions can be provided as vapor bubble germs without that larger quantities of material are required for this.
  • the surfaces of the slats can also be coated with a Coarse structure corresponding to the internal structure of the exchanger tubes and / or be provided with a micro roughness.
  • exchanger tubes Metal, but especially copper or copper alloys.
  • exchanger tubes can e.g. a round or oval Have cross-section.
  • Round exchanger tubes are preferred an outer diameter of about 6 mm to 20 mm.
  • the embodiment according to claim 2 provides that the median longitudinal planes of the troughs of adjacent ribs run in alignment.
  • micro-roughness of the fin surfaces can vary Way to be realized. For example a diffuse roughening by blasted corundum is conceivable. It is also conceivable to notch the rib surfaces in Form of linear micro-grooves (claim 3). These micro grooves then preferably extend parallel to each other. However, their longitudinal direction deviates from the longitudinal direction of the Ribs off.
  • micro-roughness can also claim accordingly 4 by intersecting, from the longitudinal direction deviating micro grooves are formed in the ribs.
  • Recesses are provided. These can also be linear or arranged in a cross in a row at a distance his.
  • micro roughness can also be different Way.
  • a preferred variant is here seen in the features of claim 5.
  • micro roughness of the fin surfaces by radiation with hard particles, e.g. Corundum, or by texturing produced by means of laser beams. It is possible either that already provided with the surface structure To process the starting material (sheet metal strip) accordingly an embossing roller itself with the desired negative micro roughness to provide.
  • the flank angle of the ribs 5 ° to 60 °, however, preferably 10 ° to 40 °. In this way a very slim rib contour can be produced.
  • the course of the fins relative to the longitudinal axis of the exchanger tube takes place according to the features of claim 8 an angle of 1 ° to 89 °, preferably 20 ° to 55 °.
  • the distance between two adjacent ribs 0.10 mm to 2.0 mm, preferably 0.26 mm up to 0.6 mm.
  • the height of the fins will vary depending on the pipe diameter Claim 11 suitably between 0.03 mm to 1.0 mm, preferably 0.05 mm to 0.35 mm, dimensioned.
  • the distance between two adjacent troughs one Rib is 0.2 mm to 4.0 mm, preferably 0.3 mm to 1.0 mm.
  • the floors of the troughs and the channel soles must meet the requirements 13 do not lie on one level.
  • the minimum distance the trough bottoms from the canal bases should then at least 0.01 mm.
  • FIG. 1 in FIG. 1 is a longitudinal section of a longitudinally welded seam Exchanger tube otherwise not closer to you heat exchanger shown for condensation and evaporation referred to by refrigerants.
  • the exchanger tube which is circular in the outside and inside cross section 1 has a smooth outer surface 2 and a structured inner surface 3.
  • Exchanger tubes 1 pass through fins of a heat exchanger is the exchanger tube 1 in one at its Outside diameter adapted opening introduced in the lamella and set by widening in the opening.
  • the exchanger tube 1 has one Outside diameter D of 9.52 mm.
  • the exchanger tube 1 is produced from a Flat sheet metal strip, not shown, on both sides Copper.
  • the sheet metal strip is a one-step roll stamping process subjected, whereby according to the representation of Figures 2 and 3 one side of the metal strip 4 remains smooth (the later one outer surface 2 of the exchanger tube 1) and the other Side with a textured surface (the later inside 3 of the exchanger tube 1) is provided. Only that the edge regions 5 of the sheet metal strip 4 used for welding ( Figure 2) remain unstructured. After the roll embossing the metal strip 4 is formed into a slotted tube and then longitudinally welded and divided to length.
  • both the head regions 10 of the ribs 7 and the transitions 11 are rounded from the flanks 8 to the channel soles 12.
  • the Cross-sectional volume of the ribs 7 is smaller than the cross-sectional volume the channels 13 dimensioned between the ribs 7.
  • each rib 7 seen in longitudinal section with a sinusoidal Comb line. Because of this sinusoidal wave crest the ribs 7 in their longitudinal directions LR are in the Ribs 7 transverse troughs 14 are formed. Like this one 2 shows, troughs 14 are adjacent Ribs 7 at an angle ⁇ of 45 ° to the longitudinal axis ⁇ of the exchanger tube 1 aligned one behind the other. The between the longitudinal direction LR of the ribs 7 and the central longitudinal planes MLE of the troughs 14 included angle ⁇ 90 °.
  • the distance A1 between two in the longitudinal direction of a rib 7 adjacent troughs 14 0.50 mm ( Figures 2 and 5) and the Distance A2 of the trough floors 15 from the channel soles 12 is 0.01 mm.
  • the troughs 14 have a depth T1 of 0.25 mm ( Figures 4 and 5).
  • the depth T is 0.005 mm.
  • microroughness 16 is produced in the exemplary embodiment immediately during roll stamping. This is the embossing roller by means of radiation from corundum with a negative diffuse surface structure has been provided then the creation of the surface structure at the later inner surface 3 of the exchanger tube 1 guaranteed.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Laser Beam Processing (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)

Claims (14)

  1. Tube échangeur pour un échangeur de chaleur, présentant une surface extérieure (2) lisse et une surface intérieure (3) structurée, constituée de nervures (7) parallèles s'étendant sous un angle (α) différent de 90° par rapport à l'axe longitudinal (6) du tube échangeur (1), avec des flancs (8) inclinés, des canaux (13) délimités latéralement par les nervures (8) et des creusements (14) s'étendant transversalement et creusés dans les nervures (7), les plans longitudinaux médians (MLE) des creusements (14) s'étendant sous un angle (γ) différent de 90° par rapport à l'axe longitudinal (6) du tube échangeur (1),
    caractérisé en ce que
    les creusements (14) sont constitués par une conformation, sinusoïdale en coupe longitudinale, des nervures (7) dotées d'une microrugosité (6) sur leurs surfaces (8, 10, 11), et arrondies du côté tête, les flancs (8), opposés les uns aux autres, des nervures (7) voisines étant reliées aux soles de canaux (12) par des transitions (11) arrondies.
  2. Tube échangeur selon la revendication 1,
    caractérisé en ce que
    les plans longitudinaux médians (MLE) des creusements (14) des nervures (7) voisines s'étendent en alignement.
  3. Tube échangeur selon la revendication 1 ou 2,
    caractérisé en ce que
    la microrugosité (16) des surfaces de nervures (8, 10, 11) est constituée par des micro-cannelures s'étendant parallèlement, dans une direction différente de la direction longitudinale (LR) des nervures (7).
  4. Tube échangeur selon la revendication 1 ou 2,
    caractérisé en ce que
    la microrugosité (16) des surfaces de nervure (8, 10, 11) est constituée par des microcannelures se coupant en forme de croix, orientées différemment dans la direction longitudinale (LR) des nervures (7).
  5. Tube échangeur selon l'une des revendications 1 à 4,
    caractérisé en ce que
    la microrugosité (16) est obtenue par projection de particules ou au moyen d'un rayonnement laser.
  6. Tube échangeur selon l'une des revendications 1 à 5,
    caractérisé en ce que
    la profondeur (T) de la microrugosité (16) est de 0,075 mm ou moins.
  7. Tube échangeur selon l'une des revendications 1 à 6,
    caractérisé en ce que
    l'angle de flanc (β) des nervures (7) est de 5° à 60°, de préférence de 10° à 40°.
  8. Tube échangeur selon l'une des revendications 1 à 7,
    caractérisé en ce que
    la direction longitudinale (LR) des nervures (7) s'étend sous un angle (α) de 1 à 89°, de préférence de 20 à 55° par rapport à l'axe longitudinal (6) du tube échangeur (1) .
  9. Tube échangeur selon l'une des revendications 1 à 8,
    caractérisé en ce que
    l'angle (δ) entre la direction longitudinale (LR) des nervures (7) et les plans longitudinaux médians (MLE) des creusements (14) est de 90° et moins.
  10. Tube échangeur selon l'une des revendications 1 à 9,
    caractérisé en ce que
    l'espacement (A) entre deux nervures (7) voisines est de 0,10 mm à 2,0 mm, de préférence de 0,26 mm à 0,6 mm.
  11. Tube échangeur selon l'une des revendications 1 à 10,
    caractérisé en ce que
    la hauteur (H) des nervures (7) est de 0,03 mm à 1,0 mm, de préférence 0,05 mm à 0,35 mm.
  12. Tube échangeur selon l'une des revendications 1 à 11,
    caractérisé en ce que l'espacement (A1) entre deux creusements (14) voisins d'une nervure (7) est de 0,2 mm à 4,0 mm, de préférence de 0,3 mm à 1,0 mm.
  13. Tube échangeur selon l'une des revendications 1 à 12,
    caractérisé en ce que les fonds de creusement (15) sont disposés selon un espacement (A2) vis-à-vis des soles de canaux (12).
  14. Tube échangeur selon l'une des revendications 1 à 12,
    caractérisé en ce que les fonds de creusement (15) sont disposés dans le même plan que les soles de canaux (12).
EP96103390A 1995-03-21 1996-03-05 Tube pour échangeur de chaleur Expired - Lifetime EP0733871B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19510124A DE19510124A1 (de) 1995-03-21 1995-03-21 Austauscherrohr für einen Wärmeaustauscher
DE19510124 1995-03-21

Publications (2)

Publication Number Publication Date
EP0733871A1 EP0733871A1 (fr) 1996-09-25
EP0733871B1 true EP0733871B1 (fr) 2000-02-02

Family

ID=7757210

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96103390A Expired - Lifetime EP0733871B1 (fr) 1995-03-21 1996-03-05 Tube pour échangeur de chaleur

Country Status (9)

Country Link
US (1) US5682946A (fr)
EP (1) EP0733871B1 (fr)
JP (1) JPH08327273A (fr)
AT (1) ATE189518T1 (fr)
DE (2) DE19510124A1 (fr)
DK (1) DK0733871T3 (fr)
ES (1) ES2143102T3 (fr)
GR (1) GR3033193T3 (fr)
PT (1) PT733871E (fr)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19612470A1 (de) * 1996-03-28 1997-10-02 Km Europa Metal Ag Austauscherrohr
IT1283468B1 (it) * 1996-07-19 1998-04-21 Alcan Alluminio S P A Laminato per la realizzazione di scambiatori di calore e relativo metodo di produzione
US5785088A (en) * 1997-05-08 1998-07-28 Wuh Choung Industrial Co., Ltd. Fiber pore structure incorporate with a v-shaped micro-groove for use with heat pipes
US6182743B1 (en) 1998-11-02 2001-02-06 Outokumpu Cooper Franklin Inc. Polyhedral array heat transfer tube
US6176301B1 (en) 1998-12-04 2001-01-23 Outokumpu Copper Franklin, Inc. Heat transfer tube with crack-like cavities to enhance performance thereof
AU6563500A (en) * 1999-07-14 2001-01-30 Fitr Gesellschaft Fur Innovation Im Tief- Und Rohrleitungsbau Weimar M.b.H. Conduits and conduit elements for transporting flowable media
US6254631B1 (en) 1999-09-23 2001-07-03 Intratherapeutics, Inc. Stent with enhanced friction
US6644388B1 (en) * 2000-10-27 2003-11-11 Alcoa Inc. Micro-textured heat transfer surfaces
FR2837270B1 (fr) * 2002-03-12 2004-10-01 Trefimetaux Tubes rainures a utilisation reversible pour echangeurs thermiques
EP1845327B1 (fr) * 2002-06-10 2008-10-29 Wolverine Tube Inc. Méthode de fabrication d'un tube d'échangeur de chaleur
US8573022B2 (en) * 2002-06-10 2013-11-05 Wieland-Werke Ag Method for making enhanced heat transfer surfaces
US7311137B2 (en) * 2002-06-10 2007-12-25 Wolverine Tube, Inc. Heat transfer tube including enhanced heat transfer surfaces
US20040099409A1 (en) * 2002-11-25 2004-05-27 Bennett Donald L. Polyhedral array heat transfer tube
US20040244958A1 (en) * 2003-06-04 2004-12-09 Roland Dilley Multi-spiral upset heat exchanger tube
US20060112535A1 (en) * 2004-05-13 2006-06-01 Petur Thors Retractable finning tool and method of using
CA2601112C (fr) * 2005-03-25 2011-12-13 Wolverine Tube, Inc. Outil servant a realiser des surfaces de transfert thermique ameliorees
DE502006006218D1 (de) * 2005-06-17 2010-04-08 Behr Gmbh & Co Kg Wärmeübertrager, insbesondere Sorptions-,Reaktions- und/oder Wärmerohr
JP4554557B2 (ja) * 2006-06-13 2010-09-29 トヨタ自動車株式会社 冷却器
CN100547339C (zh) * 2008-03-12 2009-10-07 江苏萃隆精密铜管股份有限公司 一种强化传热管及其制作方法
FR2960815B1 (fr) * 2010-06-02 2012-05-25 Jean Pierre Darlet Ensemble de refroidissement d'un film en matiere synthetique
DE102011110458A1 (de) * 2011-08-05 2013-02-07 Witzenmann Gmbh Leitungselement mit Oberflächenstruktur sowie Verfahren zum Herstellen und Verwendung eines solchen Leitungselement
CN103851945B (zh) * 2012-12-07 2017-05-24 诺而达奥托铜业（中山）有限公司 具有粗糙内表面的内螺纹管
US20140251573A1 (en) * 2013-03-07 2014-09-11 Alfredo A. Ciotola Mechanical seal cooler
US9638413B2 (en) 2014-03-05 2017-05-02 Progreen Labs, Llc Treatment device of a heating system
US9488373B2 (en) 2014-03-06 2016-11-08 Progreen Labs, Llc Treatment device of a heating system
US9593857B2 (en) 2014-03-07 2017-03-14 ProGreen Labs, LLC. Heating system
USD1009227S1 (en) 2016-08-05 2023-12-26 Rls Llc Crimp fitting for joining tubing
JP6663899B2 (ja) * 2017-11-29 2020-03-13 本田技研工業株式会社 冷却装置
DE102019112213A1 (de) * 2019-05-10 2020-11-12 Norma Germany Gmbh Fluidleitung für ein Kühlwassersystem von elektrischen Fahrzeugen, Elektrisches Fahrzeug und Verwendung einer Fluidleitung

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3825064A (en) * 1961-12-26 1974-07-23 K Inoue Heat exchanger
US3885622A (en) * 1971-12-30 1975-05-27 Olin Corp Heat exchanger tube
DE2808080C2 (de) * 1977-02-25 1982-12-30 Furukawa Metals Co., Ltd., Tokyo Wärmeübertragungs-Rohr für Siedewärmetauscher und Verfahren zu seiner Herstellung
JPS5465865A (en) * 1977-11-05 1979-05-26 Ishikawajima Harima Heavy Ind Co Ltd Heat conducting pipe for condenser
JPS5813837B2 (ja) * 1978-05-15 1983-03-16 古河電気工業株式会社 凝縮伝熱管
DE3010450A1 (de) * 1980-03-19 1981-09-24 Kabel- und Metallwerke Gutehoffnungshütte AG, 3000 Hannover Rohr fuer waermetauscherzwecke, insbesondere fuer verdampfer
JPS5758092A (en) * 1980-09-25 1982-04-07 Agency Of Ind Science & Technol Condensing heat transfer pipe
JPS57104095A (en) * 1980-11-26 1982-06-28 Furukawa Electric Co Ltd:The Heat transfer tube with groove on inner face
JPS5941795A (ja) * 1982-09-01 1984-03-08 Toshiba Corp 伝熱管及びその製造方法
US4733698A (en) * 1985-09-13 1988-03-29 Kabushiki Kaisha Kobe Seiko Sho Heat transfer pipe
JP2524983B2 (ja) * 1986-09-01 1996-08-14 古河電気工業株式会社 小径伝熱管
US4819719A (en) * 1987-01-20 1989-04-11 Mcdonnell Douglas Corporation Enhanced evaporator surface
JPH0313202A (ja) * 1989-06-09 1991-01-22 Furukawa Electric Co Ltd:The 溶接伝熱管におけるフィンないし凹凸面の形成方法
US5036909A (en) * 1989-06-22 1991-08-06 General Motors Corporation Multiple serpentine tube heat exchanger
US5070937A (en) * 1991-02-21 1991-12-10 American Standard Inc. Internally enhanced heat transfer tube
JP3219811B2 (ja) * 1991-11-15 2001-10-15 株式会社神戸製鋼所 内面溝付伝熱管
US5332034A (en) * 1992-12-16 1994-07-26 Carrier Corporation Heat exchanger tube

Also Published As

Publication number Publication date
ES2143102T3 (es) 2000-05-01
GR3033193T3 (en) 2000-08-31
DK0733871T3 (da) 2000-07-24
EP0733871A1 (fr) 1996-09-25
US5682946A (en) 1997-11-04
PT733871E (pt) 2000-06-30
DE59604338D1 (de) 2000-03-09
DE19510124A1 (de) 1996-09-26
ATE189518T1 (de) 2000-02-15
JPH08327273A (ja) 1996-12-13

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