EP2045556A2 - Echangeur thermique à plaques - Google Patents

Echangeur thermique à plaques Download PDF

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Publication number
EP2045556A2
EP2045556A2 EP08164770A EP08164770A EP2045556A2 EP 2045556 A2 EP2045556 A2 EP 2045556A2 EP 08164770 A EP08164770 A EP 08164770A EP 08164770 A EP08164770 A EP 08164770A EP 2045556 A2 EP2045556 A2 EP 2045556A2
Authority
EP
European Patent Office
Prior art keywords
depressions
heat exchanger
row
elevations
webs
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.)
Granted
Application number
EP08164770A
Other languages
German (de)
English (en)
Other versions
EP2045556A3 (fr
EP2045556B1 (fr
Inventor
Klaus Otahal
Josef Hofer
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.)
Mahle International GmbH
Original Assignee
KTM Kuehler GmbH
Mahle International GmbH
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 KTM Kuehler GmbH, Mahle International GmbH filed Critical KTM Kuehler GmbH
Publication of EP2045556A2 publication Critical patent/EP2045556A2/fr
Publication of EP2045556A3 publication Critical patent/EP2045556A3/fr
Application granted granted Critical
Publication of EP2045556B1 publication Critical patent/EP2045556B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • F28F3/027—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 with openings, e.g. louvered corrugated fins; Assemblies of corrugated strips
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
    • F28F13/12—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by creating turbulence, e.g. by stirring, by increasing the force of circulation
    • 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 plate heat exchanger having a plurality of partition walls stacked one above the other, each alternately spanning a first and a second flow space for a first or second medium, wherein in at least one flow space at least one preferably made of sheet metal turbulence generator is arranged, which consists of a plate with a plurality of juxtaposed band-like rows alternately successively surveys and depressions, which are interconnected by webs, the elevations and depressions of each row are offset with respect to each immediately adjacent row, and wherein each of the rows at least one transition region for the medium to immediately adjacent row, so that the wells of each row are in fluid communication with immediately adjacent elevations of at least one immediately adjacent row.
  • Plate heat exchangers in particular oil / water heat exchangers, consist of a plurality of plates stacked one above the other, each of which alternately forms layers through which a first and a second medium, for example oil and water, flow.
  • the erected edge of the plates encloses each heat exchanger layer and extends beyond the edge of the subsequent plate, so that in the manufacturing process, a dense solder joint can set to the outside.
  • the flow of the plates via openings in the corners of the predominantly rectangular running plates.
  • the heat exchange units of heat exchangers with internal turbulizers to improve the heat exchanger characteristics of the heat exchanger.
  • the turbulators cause the medium, which flows through the heat exchanger unit, to flow in a turbulent manner, thereby improving the heat exchange characteristics of the heat exchanger.
  • a plate heat exchanger with a plurality of parallel partitions is known, wherein the partitions alternately spanning a flow space for a first medium and a second medium.
  • a turbulence generator is arranged, which consists of a structured sheet metal plate having juxtaposed rows with alternating elevations and depressions. Adjacent rows are offset from one another so that the medium can flow through between the rows.
  • the elevations and depressions are connected to each other via mutually inclined webs, wherein between the webs of the turbulence generator has a substantially trapezoidal cross-section.
  • the DE 298 24 920 U1 discloses a heat exchanger for heat exchange between gaseous media, consisting of superimposed profile elements, wherein the stacked profile elements alternately form an angle with the longitudinal direction of the heat exchanger and these profile elements have smooth surfaces and are not provided with additional structures.
  • the profile elements may have a sawtooth-like shape or a trapezoidal, pleated or wavy profile. With such profile elements, however, no optimal heat dissipation is guaranteed.
  • the object of the invention is to avoid these disadvantages and to increase the heat transfer performance in a plate heat exchanger in the simplest possible way and to keep the production cost as low as possible.
  • this is achieved in that the webs of each row are arranged substantially parallel to each other and inclined in the same direction with respect to the partitions, wherein between a partition wall and the webs each an acute angle is clamped.
  • angles between about 40 ° and 90 ° preferably about 50 ° to 80 °, more preferably about 60 ° to 70 °.
  • the elevations and / or depressions of at least one row are substantially flat, preferably substantially parallel to the adjacent dividing wall.
  • the medium is deflected in the direction of the partition, resulting in good mixing and thus good heat transfer.
  • the same direction inclination of the webs large opening cross sections between the individual rows, resulting in low pressure loss and a homogeneous flow.
  • the turbulence generator is produced in two stages:
  • a cost-effective and process-stable roll-embossing process is performed.
  • the height of the turbulence generator, as well as the horizontal offset of the elevations is adjusted by the same direction inclined ridges by a leveling tool to the distance of the partitions.
  • the openings between the individual rows are widened.
  • a particular advantage is that the height of the turbulence generator is adjustable to the particular application.
  • an optimal adaptation of the parameters pressure loss, heat transfer performance and height to various heat exchanger applications is possible.
  • the plate heat exchanger 1 consists of a stack 2 of deep-drawn, trough-shaped metal plates 3, wherein the metal plates 3 at a distance from each other and parallel partition walls 10 form. From the partitions 10, a first flow space 12 is alternately spanned for a first medium and a second flow space 14 for a second medium.
  • the first medium may be oil to be cooled
  • the second medium may be a cooling medium formed by water, for example.
  • plate-like turbulence generators 16 are arranged both in the first flow space 12 and in the second flow space 14.
  • Each turbulence generator 16 has a plurality of juxtaposed strand-like rows 18, 20 with elevations 22 and depressions 24.
  • the elevations 22 are connected to the depressions 24 via webs 26, 28.
  • Two immediately adjacent rows are formed offset from each other, so that the elevations 22 and depressions 24 of a row 18 with respect to each immediately adjacent row 18, 20 are formed offset.
  • Each row 18 thus has per side wall 26, 28 a transition region 30, 32 between the two rows 18, 20, so that the depressions 24 of each row 18, 20 are in flow communication with the projections 22 of the adjacent row 20, 18.
  • the webs 26, 28 of each row 18, 20 are arranged substantially parallel to each other and inclined in the same direction, the webs 26, 28 with the adjacent partition wall 10 an angle span ⁇ , which in the exemplary embodiment is about 60 ° to 70 °.
  • the elevations 22 and depressions 24 are substantially flat, in particular formed parallel to the partitions 10.
  • the turbulence generators 16 are soldered to the adjacent partitions 10 in the region of the elevations 22 and depressions 24.
  • the production of the turbulence generator 16 can take place in two stages. In a first stage, a conventional, inexpensive and process-stable roll embossing process is carried out. In a second stage, using a leveling tool, a defined height H and a specific horizontal offset of the elevations 22 with respect to the depressions 24 are realized. In this step, the crossing areas 30, 32 are widened. During the mentioned second production stage, the height H of the turbulence generator is adjustable to the respective application. Thus, an optimal adaptation of the parameters pressure loss, heat transfer performance and height to various applications is possible.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
EP08164770A 2007-10-04 2008-09-22 Echangeur thermique à plaques Active EP2045556B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT0156607A AT505300B1 (de) 2007-10-04 2007-10-04 Plattenwärmetauscher

Publications (3)

Publication Number Publication Date
EP2045556A2 true EP2045556A2 (fr) 2009-04-08
EP2045556A3 EP2045556A3 (fr) 2010-03-17
EP2045556B1 EP2045556B1 (fr) 2012-11-28

Family

ID=40104795

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08164770A Active EP2045556B1 (fr) 2007-10-04 2008-09-22 Echangeur thermique à plaques

Country Status (4)

Country Link
US (1) US8418752B2 (fr)
EP (1) EP2045556B1 (fr)
CN (1) CN101469957B (fr)
AT (1) AT505300B1 (fr)

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DE202009006409U1 (de) 2009-05-05 2009-08-13 Ifg Solar Kg Wärmetauscher zur Wärmeübertragung
US20120125580A1 (en) * 2010-11-19 2012-05-24 Te-Jen Ho aka James Ho Embossed plate external oil cooler
DE102011112512B4 (de) * 2011-09-07 2013-06-06 Umicore Ag & Co. Kg Verfahren zur Herstellung von Plattenwärmetauschern
CN103252423B (zh) * 2012-02-16 2015-07-22 北京环都人工环境科技有限公司 滚边机
DE112014001028T5 (de) * 2013-02-27 2016-01-07 Denso Corporation Stapelwärmetauscher
JP2015058824A (ja) * 2013-09-19 2015-03-30 三菱重工オートモーティブサーマルシステムズ株式会社 扁平熱交換チューブ、それを用いた熱媒体加熱装置および車両用空調装置
DE212015000203U1 (de) 2014-08-21 2017-04-05 Trane International, Inc. Wärmetauscherspule mit versetzten Lamellen
EP3010321B1 (fr) * 2014-10-14 2021-12-01 Magneti Marelli S.p.A. Système de refroidissement de liquide pour un composant électronique
DE102014226090A1 (de) * 2014-12-16 2016-06-16 Mahle International Gmbh Wärmeübertrager
JP6414482B2 (ja) * 2015-02-17 2018-10-31 株式会社デンソー オフセットフィン製造方法およびオフセットフィン製造装置
US20160377350A1 (en) * 2015-06-29 2016-12-29 Honeywell International Inc. Optimized plate fin heat exchanger for improved compliance to improve thermal life
US10094624B2 (en) * 2016-01-08 2018-10-09 Hanon Systems Fin for heat exchanger
DE112018006027T5 (de) * 2017-11-27 2020-09-17 Dana Canada Corporation Verbesserte wärmeübertragungsfläche
US11193722B2 (en) * 2018-05-01 2021-12-07 Dana Canada Corporation Heat exchanger with multi-zone heat transfer surface

Citations (4)

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GB1288227A (fr) * 1968-09-11 1972-09-06
WO2000063631A2 (fr) * 1999-04-19 2000-10-26 Peerless Of America, Inc. Reseau d'ailettes ameliore pour ensembles de transfert de chaleur et procede de fabrication correspondant
EP1172625A2 (fr) * 2000-07-11 2002-01-16 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Ailette d'échange thermique pour échangeur de chaleur à plaques brasées, et échangeur de chaleur correspondant
EP1918668A1 (fr) * 2006-10-27 2008-05-07 Behr GmbH & Co. KG Dispositif destiné à la réception d'un fluide à l'aide de forces capillaires et procédé destiné à la fabrication du dispositif

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Publication number Priority date Publication date Assignee Title
GB1288227A (fr) * 1968-09-11 1972-09-06
WO2000063631A2 (fr) * 1999-04-19 2000-10-26 Peerless Of America, Inc. Reseau d'ailettes ameliore pour ensembles de transfert de chaleur et procede de fabrication correspondant
EP1172625A2 (fr) * 2000-07-11 2002-01-16 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Ailette d'échange thermique pour échangeur de chaleur à plaques brasées, et échangeur de chaleur correspondant
EP1918668A1 (fr) * 2006-10-27 2008-05-07 Behr GmbH & Co. KG Dispositif destiné à la réception d'un fluide à l'aide de forces capillaires et procédé destiné à la fabrication du dispositif

Also Published As

Publication number Publication date
CN101469957A (zh) 2009-07-01
US8418752B2 (en) 2013-04-16
AT505300B1 (de) 2008-12-15
US20090095456A1 (en) 2009-04-16
AT505300A4 (de) 2008-12-15
EP2045556A3 (fr) 2010-03-17
CN101469957B (zh) 2012-07-25
EP2045556B1 (fr) 2012-11-28

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