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EP2678629A1 - Échangeur de chaleur - Google Patents

Échangeur de chaleur

Info

Publication number
EP2678629A1
EP2678629A1 EP12705664.6A EP12705664A EP2678629A1 EP 2678629 A1 EP2678629 A1 EP 2678629A1 EP 12705664 A EP12705664 A EP 12705664A EP 2678629 A1 EP2678629 A1 EP 2678629A1
Authority
EP
European Patent Office
Prior art keywords
flanks
rib
heat exchanger
connecting surface
ribbed
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
EP12705664.6A
Other languages
German (de)
English (en)
Other versions
EP2678629B1 (fr
Inventor
Friedrich Brotz
Volker Kurz
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 Behr GmbH and Co KG
Original Assignee
Behr GmbH and Co KG
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 Behr GmbH and Co KG filed Critical Behr GmbH and Co KG
Publication of EP2678629A1 publication Critical patent/EP2678629A1/fr
Application granted granted Critical
Publication of EP2678629B1 publication Critical patent/EP2678629B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • 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
    • 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
    • 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
    • F28F1/128—Fins with openings, e.g. louvered 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2215/00—Fins

Definitions

  • the invention relates to a heat exchanger, with a rib and tubes having block, which is arranged between two containers, each rib consists of multiple rib arcs and each rib bow is formed approximately V-like and the, a rib bow-forming flanks each having a plurality of air slots, which extending transversely to the direction of flow of a medium flowing through the fin elbow.
  • Conventional heat exchangers consist of an inlet box and a discharge box, which are hereinafter referred to as a container, wherein between see the two containers a block is arranged, in which there are tubes that connect the two containers together.
  • the heat exchanger is arranged in front of the internal combustion engine. Through the two containers and the tubes flows a coolant, which is heated by the heat emitted by the internal combustion engine.
  • the ribs formed between the tubes are penetrated by an air flow, which absorbs the heat given off by the coolant and out of the region of the coolant Heat exchanger dissipates. The thus cooled coolant is returned to the engine.
  • V-like fin bow which is formed by two opposite edges, each flank having a plurality of Lucasschfitze, which is formed transversely to a flow direction of a medium, which is guided by the gap of the flanks.
  • the airscrews have the task of swirling the medium, thus enabling a better heat exchange.
  • the problem with V-shaped ribbed arches is that the wide area of the V-shaped cross section flows through at high speed, which is why these medium flows are also referred to as jets. For this reason, this part of the air flow does not take place at the transverse exchange, which is caused by the louvers contained in the flanks of the rib bow.
  • a heat exchanger which has ribs which are formed from a plurality of ribbed bows, which have a rectangular cross section.
  • the two flanks, which form the respective rib bow have air pockets for swirling the medium flowing through the rib arcs, wherein the flanks are connected in a meandering manner via a connecting surface which has projections which are formed transversely to the flow direction of the air.
  • a heat exchanger which has a rib, which is arranged in thermal contact with a pipe.
  • the rib consists of various ribbed arches with a rectangular cross-section.
  • the connection between the flanks of a rib bow seizes several elevations, which are directed in the direction of the interior between the flanks of the rib bow and interrupt the flow of the medium. As a result, the flow is disturbed, it can no longer shoot through unhindered, but a cross exchange is forced, which leads to a better heat transfer.
  • the jets are reduced in parallel by dividing the flanks of the costal arch and creating a rectangular cross-section of the costal arch, they can not be completely prevented because the louvers do not extend into the radius of curvature of the costal arch, since otherwise the rib becomes too unstable and the airflow becomes too unstable Louvers would break in the production.
  • the invention is therefore based on the object of specifying a stably shaped V-like ribbed ribs, with soft areas at high speed of flowing through the rib bow medium in the flow direction, which can not participate in the transverse exchange of the louvers are avoided.
  • the object is achieved in that the two flanks of the rib bow are connected via a first connecting surface and / or the opposite flanks of two successive rib bends over a second connecting surface, wherein the first and / or the second connecting surface have a rib arch cross section changing element, which in the Gap between the, a rib-bow-forming edges and / or the opposite edges of two successive rib bows is directed.
  • This has the advantage that an improvement in the rib flow is achieved, whereby the cooling capacity of the heat exchanger is improved.
  • the cross-section of the rib bow is varied in depth or width such that all cross-sectional areas in the flow direction of the medium, which extending parallel to the flanks of the costal arch, can reliably participate in the transverse exchange through the louvers,
  • each connection surface opposes an open region formed by the two flanks connected by the connection surface, the extension of the open region between the two flanks being less than the extension of the connection surface between the two flanks.
  • V-shaped rib bow allows the introduction of different shapes of the rib arch cross section changing element in the space between the two flanks.
  • the open area between the flanks of two consecutive rib bows depends on the number of rib bows.
  • the rib-arch cross-section change element is designed as a curvature directed in the space between the flanks, which extends approximately parallel to the longitudinal extension of the flanks. This has the advantage that the cross section of the fin arc is changed in width, whereby all flow channels have the same cross section.
  • cross-sectional shapes are prevented with large cross-sections, which prevents the formation of a jet. As a result, a better cross-exchange takes place, whereby the heat exchange is also improved.
  • curvature as a ribbed cross-section altering element allows a simple production of the rib-arch cross-sectional modification element.
  • the rib-arch cross section changing element is designed as a web directed in the space between the flanks, which web extends approximately parallel to the longitudinal extension of the flanks.
  • This embodiment also represents a change in cross section of the fin arch in width and allows the uniform formation of all the flow channels formed by the flanks with one and the same cross-sectional shape, whereby the formation of jets is prevented,
  • the Rippenbogenquerites- change element extends to approximately half the height of the gap between the flanks, Thus, a particularly symmetrical configuration of the rib is achieved in a simple production.
  • the first and / or second connecting surface having the rib-bow cross-sectional variation element is arched, wherein the bulge areas which enclose the rib-arch cross-sectional change element point in an opposite direction to the rib-arch cross-sectional change element.
  • the Rippenbogenqueritess- change element is designed as a flap-like air guide. This has the advantage that a cross-sectional change takes place through the flap-like air-guiding element projecting into the intermediate space between the two flanks.
  • This change in cross-section, directed into the depth of the fin arch, causes the flow of the medium, which moves along the first or second connection surface, to be deflected downwards into the region of the air slots, and thus to the transverse exchange of the flow of the medium within the through-flow Flanks formed flow channel can participate.
  • the flap-like air guiding element is unfolded towards the intermediate space between the two flanks. This unfolding affects the air flow in the depth of the gap.
  • an angle of the unfolding of the flap-like air guiding element to the connecting surface depends on the depth of the respective rib bow.
  • the angle of the unfolding can be determined depending on the application of the heat exchanger, so that the heat exchanger allows a reliable heat exchange in each operating condition.
  • the flap-like air guide element is punched out of the connection surface, which allows a particularly simple production of the air guide element.
  • FIG. 2 composite of rib and tube of the heat exchanger according to FIG. 1
  • Figure 3 Design of a rib for flow engagement in the depth
  • Figure 4 Design of a rib for flow engagement in the width
  • FIG. 1 shows a heat exchanger 1, in particular a coolant cooler, which consists of a block 2, which is arranged between two boxes trained containers 3, 4 is arranged.
  • Each tank 3, 4 has a bottom 5, 6 'on which the block 2, which is closed by a side portion 7, joining, the block 2 consists of a plurality of pipes 8 and a plurality of fins 9, wherein pipe 8 and rib 9 always arranged alternately to each other.
  • the container 4 in this case has a nozzle 11, in which a, derived from the internal combustion engine not shown and heated by this cooling medium flows, which is passed through the tubes 8 of the block 2 to the second container 3.
  • a gaseous medium preferably air
  • the second container 4 3 of the heat exchanger 1 " in which the cooled cooling medium flows, comprises a further nozzle 10, through which the cooling medium is discharged from the heat exchanger 1 and returned to the internal combustion engine.
  • FIG. 2 shows a composite of the rib 9 and the tube 8 is shown in more detail, from which it can be seen that the rib 9 consists of a plurality of V-shaped ribbed sheets 9a.
  • Ribs 9 allows a high efficiency of the heat exchanger 1 in the heat dissipation.
  • FIG. 3 shows a V-like rib 9 in which a ribbed web 9a consists of two flanks 12, 13, each flank 12, 13 having a plurality of air slots 14 which are formed transversely to the flow direction of the medium flowing through the ribbed bow 9a are.
  • the flow direction of the medium through the ribbed arcs 9a is provided in the X direction.
  • the two flanks 12, 13 of the rib bow 9a are in an acute
  • flanks 12, 13 of the rib bow 9a are interconnected by a connecting surface 15.
  • a second connection surface 16 connects.
  • the flanks 12, 13 and the connecting surfaces 15, 16 form the ribbed arch 9a.
  • The, the flanks 12 and 13 connecting connecting surface 15, 16 is flat and has compared to the open area Y, with which the flanks 12 and 1 3 opposite to their foot or head side, a much wider extent.
  • a plurality of flap-like air baffles 17 are worked out in succession, of which only two baffles 17 lying one behind the other are shown in FIG.
  • the flap-like air guide plate 17 is punched out of the connecting surface 15 or 16, wherein three sides of the flap-like air baffle 17 are triggered from the connection surface 15 and 16, while the fourth side of the air baffle 17 is further connected to the connection surface 15 and 16 and forms a bending edge 17a.
  • the freely movable end of the air guide 17 is directed downward in the intermediate space 20 between the flanks 12, 13 of the rib bow 9 a in such a way that this transverse to the flow direction of the flowing through medium and thus causes a turbulence.
  • the medium flowing past the air guide plates 17 is directed downwards into the region of the air slots 14 and can thus participate in the transverse exchange of the heat.
  • the free end of the air baffle 17 has the connection surface 15 at an angle ⁇ of the unfolding.
  • This angle ⁇ of the unfolding and the distances and lengths of the flap-like air baffles 17 depend on the depth of the ribs 9 and the critical operating state of each application of the heat exchanger 1, while the open area Y depends on the rib density.
  • a ribbed bow 9a also consists of two opposite each other at an acute angle inclined flanks 2 and 13, wherein the flanks 12, 13 at its foot and / or head side an open area Y. exhibit.
  • This open region Y lies opposite the connection surface 15, 16, which is many times wider than the open region Y.
  • a second connection surface 16 adjoins the flank 13, wherein the fin arch 9a is also formed by the flanks 12, 13 and the first connection surface 15 and the second connection surface 16.
  • each connecting surface 15 or 16 each has a curvature 18, 19, which extends in the direction of the intermediate space 20 of the flanks 12, 13.
  • the bulges 18 and 19 are formed along the entire longitudinal extent of the rib bow 9a.
  • the curvature 18, 19 has a radius R
  • the further bulges 21, 22 and 23, 24 enclose the bulge 18 or 19 and are formed in the opposite direction than the bulges 18, 19.
  • the distance between the outer contours of the curvature 18, 19 to the outer contours of the other bulges 21st , 22 or 23, 24 is designated as H.

Landscapes

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

Abstract

L'invention concerne un échangeur de chaleur comprenant un bloc (2) constitué d'ailettes (9) et de tubes (8), lequel bloc est disposé entre deux contenants (3, 4), chaque ailette (9) étant constituée de plusieurs ondulations (9a) et chaque ondulation (9a) présentant à peu près la forme d'un V, les deux flancs (12, 13) qui forment une ondulation (9a) présentant chacun plusieurs fentes de passage d'air (14) qui s'étendent perpendiculairement à la direction d'écoulement d'un fluide circulant dans les ondulations (9a), les deux flancs (12, 13) de l'ondulation (9a) étant reliés par une première surface de liaison (15) et/ou les flancs opposés (13, 12) de deux ondulations (9a) successives étant reliés par une seconde surface de liaison (16), la première (15) et/ou la seconde surface de liaison (16) présentant un élément (17, 18, 19) modifiant la section de l'ondulation, lequel élément est dirigé dans l'espace intermédiaire (20) situé entre les flancs (12, 13) qui forment une ondulation (9a) et/ou entre les flancs opposés (13, 12) de deux ondulations (9a) successives.
EP12705664.6A 2011-02-22 2012-02-22 Échangeur de chaleur Not-in-force EP2678629B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202011003054U DE202011003054U1 (de) 2011-02-22 2011-02-22 Wärmetauscher
PCT/EP2012/053018 WO2012113836A1 (fr) 2011-02-22 2012-02-22 Échangeur de chaleur

Publications (2)

Publication Number Publication Date
EP2678629A1 true EP2678629A1 (fr) 2014-01-01
EP2678629B1 EP2678629B1 (fr) 2017-02-08

Family

ID=43993361

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12705664.6A Not-in-force EP2678629B1 (fr) 2011-02-22 2012-02-22 Échangeur de chaleur

Country Status (4)

Country Link
US (1) US20130327512A1 (fr)
EP (1) EP2678629B1 (fr)
DE (1) DE202011003054U1 (fr)
WO (1) WO2012113836A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107202504A (zh) * 2016-03-17 2017-09-26 浙江盾安热工科技有限公司 一种交叉换流装置及微通道换热器

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160117937A (ko) * 2015-04-01 2016-10-11 삼성전자주식회사 냉장고 및 이에 적용되는 열교환기
US11499210B2 (en) * 2016-12-21 2022-11-15 Mitsubishi Electric Corporation Heat exchanger and method of manufacturing thereof, and refrigeration cycle apparatus
KR20240121008A (ko) * 2023-02-01 2024-08-08 엘지전자 주식회사 열교환기

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US2079222A (en) * 1935-05-22 1937-05-04 Otto C Nagel Motor vehicle radiator
US2488615A (en) * 1942-11-11 1949-11-22 Modine Mfg Co Oil cooler tube
US3521707A (en) * 1967-09-13 1970-07-28 Ass Eng Ltd Heat exchangers
DE3521914A1 (de) * 1984-06-20 1986-01-02 Showa Aluminum Corp., Sakai, Osaka Waermetauscher in fluegelplattenbauweise
JP3622297B2 (ja) * 1995-02-03 2005-02-23 株式会社デンソー 熱交換器
KR100365022B1 (ko) * 2000-05-04 2002-12-16 한국기계연구원 고효율 다채널형 루프 열전달장치
US6820682B2 (en) * 2000-12-19 2004-11-23 Denso Corporation Heat exchanger
JP4041654B2 (ja) * 2001-01-31 2008-01-30 カルソニックカンセイ株式会社 熱交換器のルーバーフィンおよびその熱交換器並びにそのルーバーフィンの組付け方法
JP3784735B2 (ja) 2002-03-07 2006-06-14 カルソニックカンセイ株式会社 ルーバーフィン
JP2005055096A (ja) * 2003-08-06 2005-03-03 Denso Corp 熱交換器
US20070012430A1 (en) 2005-07-18 2007-01-18 Duke Brian E Heat exchangers with corrugated heat exchange elements of improved strength
US7913750B2 (en) 2008-01-09 2011-03-29 Delphi Technologies, Inc. Louvered air center with vortex generating extensions for compact heat exchanger

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See references of WO2012113836A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107202504A (zh) * 2016-03-17 2017-09-26 浙江盾安热工科技有限公司 一种交叉换流装置及微通道换热器

Also Published As

Publication number Publication date
DE202011003054U1 (de) 2011-05-12
US20130327512A1 (en) 2013-12-12
EP2678629B1 (fr) 2017-02-08
WO2012113836A1 (fr) 2012-08-30

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