EP1007893B1 - Wärmetauscherwirbelerzeuger mit unterbrochenen wellungen - Google Patents

Wärmetauscherwirbelerzeuger mit unterbrochenen wellungen Download PDF

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Publication number
EP1007893B1
EP1007893B1 EP98941187A EP98941187A EP1007893B1 EP 1007893 B1 EP1007893 B1 EP 1007893B1 EP 98941187 A EP98941187 A EP 98941187A EP 98941187 A EP98941187 A EP 98941187A EP 1007893 B1 EP1007893 B1 EP 1007893B1
Authority
EP
European Patent Office
Prior art keywords
convolutions
turbulizer
rows
heat exchanger
turbulizers
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
EP98941187A
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English (en)
French (fr)
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EP1007893A1 (de
Inventor
Allen K. So
Dan Constantin Stefanoiu
Peter Zurawel
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.)
Dana Canada Corp
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Dana Canada Corp
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Publication date
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Publication of EP1007893A1 publication Critical patent/EP1007893A1/de
Application granted granted Critical
Publication of EP1007893B1 publication Critical patent/EP1007893B1/de
Anticipated expiration legal-status Critical
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    • 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
    • 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
    • F28D1/03—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 plate-like or laminated conduits
    • F28D1/0308—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 plate-like or laminated conduits the conduits being formed by paired plates touching each other
    • F28D1/0325—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 plate-like or laminated conduits the conduits being formed by paired plates touching each other the plates having lateral openings therein for circulation of the heat-exchange medium from one conduit to another
    • F28D1/0333—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 plate-like or laminated conduits the conduits being formed by paired plates touching each other the plates having lateral openings therein for circulation of the heat-exchange medium from one conduit to another the plates having integrated connecting members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2255/00—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes
    • F28F2255/12—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes expanded or perforated metal plate

Definitions

  • the present invention relates to heat exchangers and to turbulizers for heat exchangers.
  • turbulizers located in the tubes or between the plates inside the plate pairs to enhance heat transfer, especially where a liquid, such as oil, passes through these flow passages.
  • turbulizers are commonly in the form of expanded metal inserts and they have undulations or convolutions formed therein to create turbulence in the flow and in this way increase heat transfer in the heat exchanger.
  • EP-A-203458 discloses turbulizers for heat exchangers having the features of the preamble of enclosed claim 1: a difficulty with the turbulizers described in this patent is that the non-convoluted areas of the turbulizers are too large with respect to the row of convolutions, so the heat transfer efficiency is too low.
  • the object of the present invention is to improve the balance between the heat exchange efficiency and flow resistance with respect to the known turbulizer.
  • a turbulizer for a heat exchanger including a planar member having a plurality of longitudinal parallel rows of convolutions formed therein characterized by said convolutions being interrupted to form longitudinal neutral channels only between some of the adjacent longitudinal rows of convolutions.
  • the convolutions are periodically interrupted in the turbulizer to form non-convoluted neutral channels located between groups of adjacent longitudinal rows of convolutions. Surprisingly, this substantially reduces the pressure drop caused by the turbulizer without appreciably reducing heat transfer.
  • a heat exchanger comprising a plurality of spaced-apart tube members defining flow passages there between; said tube members defining spaced-apart inlet and outlet openings; and a turbulizer as previously defined and located in at least one of the flow passages between the respective inlet and outlet openings.
  • Heat exchanger 10 is formed of a plurality of spaced-apart tube members or plate pairs 12, each having an upper plate 14, a lower plate 16 and a turbulizer 18 located therebetween. Plates 14, 16 are arranged back-to-back and have joined peripheral edges 20. Plates 14, 16 also have raised central portions 22 which define a flow passage therebetween in which turbulizers 18 are located. Raised central portions 22 also define spaced-apart inlet and outlet openings 24, 26 for the flow of fluid, such as oil, through the plate pairs.
  • plates 14, 16 and the fins 28 can be any shape and configuration desired and are not, per se ,considered to be part of the present invention.
  • plates 14, 16 can be formed with outwardly disposed dimples which mate in adjacent plate pairs in which case, fins 28 would not be used.
  • a turbulizer 30 is shown which could be used as the turbulizer 18 in Figure 1, according to a prior art solution and which is not encompassed by the enclosed claims.
  • Figures 5, 8 show preferred embodiments of turbulizers according to the present invention. Any one of these could be used as the turbulizer 18 in the heat exchanger 10 shown in Figure 1.
  • the turbulizers shown in Figures 2, 5, 8 are just illustrations of sections or portions of the turbulizers. It will be appreciated that these turbulizers can be made in any length or width desired depending upon the manufacturing method.
  • the turbulizers usually are stamped or roll-formed out of aluminum about 0.01 inches (0.25 mm) thick. However, other materials and heavier or thinner materials can be used for the turbulizers as well.
  • Turbulizer 30 is a planar member having a plurality of convolutions 32, 34 formed therein. Convolutions 32, 34 are arranged in parallel rows. Where turbulizer 30 is elongate in shape, convolutions 32, 34 are arranged in parallel, longitudinal rows 36, and also in parallel transverse rows 38.
  • Convolutions 32, 34 are interrupted periodically to form non-convoluted pressure recovery zones 40 located between or downstream of the convolutions 32, 34 in each row of convolutions 36.
  • the convolutions 32, 34 in each row are spaced-apart by pressure recovery zones 40, rather than being located contiguous to one another.
  • Turbulizer 30 has a central plane containing pressure recovery zones 40 as indicated by arrow 41 in Figure 3, and convolutions 32, 34 extend alternately above (convolutions 32) and below (convolutions 34) the central plane 41.
  • Convolutions 32, 34 are in the form of bridges, and turbulizer 30 has a high pressure drop orientation in the direction of the bridges, or in the longitudinal direction, and a low pressure drop orientation in the direction passing under the bridges or the transverse direction.
  • the convolutions 32, 34 are interrupted in the high pressure drop direction by pressure recovery zones 40 located between or downstream of the convolutions.
  • the pressure recovery zones 40 are located in transverse rows or neutral channels 41 themselves.
  • turbulizer 30 When turbulizer 30 is used as the turbulizer 18 in heat exchanger 10 of Figure 1, fluid flows in the high pressure drop orientation or direction parallel to longitudinal rows 36 from inlet openings 24 to outlet openings 26. The fluid flows around and under or through convolutions 32, 34. This causes turbulence and reduces boundary layer growth increasing the heat transfer coefficient.
  • pressure recovery zones 40 allow for a pressure recovery to reduce flow resistance or pressure drop in the fluid passing from inlet openings 24 to outlet openings 26.
  • convolutions 32, 34 are aligned in the low pressure drop or transverse direction.
  • pressure recovery zones 40 are aligned in the low pressure drop or transverse direction to form neutral channels 41. Pressure recovery zones 40 thus form continuous neutral channels 41 in the low pressure drop direction. These neutral channels 41 also provide areas that can be used to eject the turbulizer from the dies used to produce the turbulizer.
  • the width of the convoluted longitudinal rows 36 is preferably as narrow as is practical for tool design and maintenance purposes. For automotive cooling purposes, a preferred minimum width would be about 0.02 inches (0.5 mm). The maximum width should not exceed ten times the minimum. Typically, the maximum width would be about 0.2 inches (5 mm).
  • the longitudinal length of pressure recovery zones 40 ranges from about 5% of the longitudinal or centerline to centerline spacing between convolutions 32, 34 to about 75% of the spacing between any two consecutive convolutions 32, 34. A preferable range would be between 0.02 inches (0.5 mm) to about 0.5 inches (1.25 cm), or about 40% to 50% of the centerline to centerline distance between longitudinally consecutive convolutions 32, 34.
  • the height of convolutions 32, 34 above or below the central plane 41 containing pressure recovery zones 40 depends upon the thickness of the material used for turbulizer 30. This height should not be less than the material thickness and typically ranges from this minimum to about 10 times the material thickness where aluminum is used for turbulizer 30. A good range is from 0.01 inches (0.25 mm) to 0.5 inches (1.25 cm).
  • the longitudinal length of convolutions 32, 34 is normally about 2 times the height of the convolutions.
  • the height normally ranges from about 2 times the material thickness to about 20 times the material thickness.
  • a good range is from 0.02 inches (0.5 mm) to about 1.0 inch (2.5 cm).
  • a turbulizer 55 is shown that is most similar to turbulizer 30 of Figure 2, except the convolutions 32, 34 are also interrupted in the low pressure drop direction to form further pressure recovery zones 56 located between some of the rows of convolutions 36.
  • pressure recovery zones 56 extend longitudinally the full length of turbulizer 55 to form longitudinal neutral channels 58 in the high pressure drop or longitudinal direction of turbulizer 55.
  • the width of neutral channels 58 preferably is about the same as the width of the rows of convolutions 36.
  • the convolutions 32, 34 are aligned in the low pressure drop or transverse direction, but they could be staggered as well.
  • turbulizer 55 is similar to turbulizers 30, 45 and 50.
  • a turbulizer 60 is shown where the convolutions 32, 34 are interrupted only in the low pressure drop or transverse direction and only between some of the rows of convolutions 36. These interruptions make pressure recovery zones 61 in the form of longitudinal neutral channels 62. In all other respects, turbulizer 60 is similar to turbulizers 30 and 55. In Figures 8 to 10, turbulizer 60 is shown cut to length in the middle of convolutions 32, 34. This has been done for the purposes of illustration. In practice, the turbulizers would normally be cut to length between the convolutions, as is the case in Figures 1 to 7.
  • turbulizers 18 would be inserted lengthwise into one end of the tubes.
  • the convolutions 32, 34 have been shown to be rounded with various curvatures. These convolutions can be any configuration, such as semi-circular, sinusoidal, trapezoidal or even V-shaped, if desired.
  • turbulizer 18 is shown to be orientated such that the flow is in the high pressure drop or longitudinal direction.
  • the turbulizer could be rotated 90 degrees so that the flow from inlet 24 to outlet 26 is in the low pressure drop direction if desired. It will also be appreciated that the various features of turbulizers 30, 55 and 60 could be mixed and matched, or a combination of these features could be employed in the same turbulizer. Also, any given heat exchanger could have any one or a combination of the turbulizers described above. Other modifications to the structure described above will be apparent to those skilled in the art.

Claims (10)

  1. Wirbelerzeuger für einen Wärmetauscher, wobei der Wirbelerzeuger ein ebenes Element aufweist, das eine Vielzahl von länglichen parallelen Reihen (36) von Wellungen (32, 34) besitzt, die darin ausgebildet sind,
    dadurch gekennzeichnet, dass die Wellungen (32, 34) unterbrochen sind, um nur zwischen einigen der benachbarten länglichen Reihen (36) von Wellungen längliche neutrale Kanäle (58; 62) zu bilden.
  2. Wirbelerzeuger nach Anspruch 1,
    dadurch gekennzeichnet, dass die Wellungen (32, 34) als Brücken ausgebildet sind, die in Längsrichtung orientiert sind, um eine Hochdruckabfallorientierung in Richtung der Brücken und eine Niederdruckabfallorientierung quer in der Richtung, die unter den Brücken verläuft, zu bilden.
  3. Wirbelerzeuger nach Anspruch 2,
    dadurch gekennzeichnet, dass die Reihen (36) von Wellungen außerdem in Längsrichtung unterbrochen sind, um Druckrückgewinnzonen (40) zu bilden, die zwischen den Wellungen (32, 34) lokalisiert sind.
  4. Wirbelerzeuger nach Anspruch 3,
    dadurch gekennzeichnet, dass die Wellungen (32, 34) in der Querrichtung fluchten und die Druckrückgewinnzonen (40) ebenfalls quer fluchten, um in der Querrichtung neutrale Kanäle (59) zu bilden.
  5. Wirbelerzeuger nach Anspruch 2,
    dadurch gekennzeichnet, dass die Wellungen (32, 34) in Querrichtung versetzt angeordnet sind.
  6. Wirbelerzeuger nach Anspruch 2,
    dadurch gekennzeichnet, dass die Wellungen (32, 34) in Querrichtung fluchtend angeordnet sind.
  7. Wirbelerzeuger nach Anspruch 3,
    dadurch gekennzeichnet, dass er eine zentrale Ebene besitzt, die die Druckrückgewinnzonen enthält, wobei die Wellungen (32, 34) in jeder Reihe (36) von Wellungen sich abwechselnd über und unter die zentrale Ebene erstrecken.
  8. Wirbelerzeuger nach Anspruch 5,
    dadurch gekennzeichnet, dass er eine zentrale Ebene besitzt, die die Druckrückgewinnzonen enthält, wobei die Wellungen (32, 34) in jeder Reihe (36) von Wellungen sich abwechselnd über und unter die zentrale Ebene erstrecken.
  9. Wirbelerzeuger nach Anspruch 1,
    dadurch gekennzeichnet, dass die Gruppen drei Reihen (36) von Wellungen enthalten, wobei zwischen jeder Gruppe ein einziger länglicher neutraler Kanal (58; 62) vorhanden ist.
  10. Wärmetauscher (10) mit einer Vielzahl von voneinander beabstandeten Rohrelementen, die dazwischen Strömungsdurchlässe bestimmen,
    wobei die Rohrelemente voneinander beabstandete Einlass- und Auslassöffnungen (24, 26) bestimmen, und mit einem Wirbelerzeuger (55; 60) nach einem der vorhergehenden Ansprüche, wobei der Wirbelerzeuger (55; 60) in mindestens einem der Strömungsdurchlässe zwischen den entsprechenden Einlass- und Auslassöffnungen (24, 26) lokalisiert ist.
EP98941187A 1997-08-29 1998-08-28 Wärmetauscherwirbelerzeuger mit unterbrochenen wellungen Expired - Lifetime EP1007893B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CA2214255 1997-08-29
CA002214255A CA2214255C (en) 1997-08-29 1997-08-29 Heat exchanger turbulizers with interrupted convolutions
PCT/CA1998/000826 WO1999011995A1 (en) 1997-08-29 1998-08-28 Heat exchanger turbulizers with interrupted convolutions

Publications (2)

Publication Number Publication Date
EP1007893A1 EP1007893A1 (de) 2000-06-14
EP1007893B1 true EP1007893B1 (de) 2004-01-02

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Application Number Title Priority Date Filing Date
EP98941187A Expired - Lifetime EP1007893B1 (de) 1997-08-29 1998-08-28 Wärmetauscherwirbelerzeuger mit unterbrochenen wellungen

Country Status (12)

Country Link
EP (1) EP1007893B1 (de)
JP (1) JP3749436B2 (de)
KR (1) KR100370487B1 (de)
AT (2) AT411397B (de)
AU (1) AU738890B2 (de)
BR (1) BR9811403A (de)
CA (1) CA2214255C (de)
DE (2) DE69820880T2 (de)
ES (2) ES2191524A1 (de)
GB (1) GB2345336B (de)
SE (1) SE517362C2 (de)
WO (1) WO1999011995A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3038743B1 (de) * 2013-08-30 2023-06-07 Beijing Zehua Chemical Engineering Co., Ltd. Säulenverpackungselement, säulenverpackung sowie verpackungssäule und mischer damit

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2420273A1 (en) 2003-02-27 2004-08-27 Peter Zurawel Heat exchanger plates and manufacturing method
JP2007113821A (ja) * 2005-10-19 2007-05-10 Tokyo Roki Co Ltd 積層型熱交換器
DE102007036305A1 (de) * 2007-07-31 2009-02-05 Behr Gmbh & Co. Kg Rippe für einen Wärmeübertrager und Verfahren zur Herstellung der Rippe
KR101354916B1 (ko) 2007-11-02 2014-01-22 한라비스테온공조 주식회사 오일쿨러
JP2009204182A (ja) * 2008-02-26 2009-09-10 Denso Corp 熱交換器
WO2012173270A1 (ja) * 2011-06-17 2012-12-20 株式会社リチウムエナジージャパン 組電池
KR101423656B1 (ko) 2012-08-24 2014-07-25 주식회사 한국쿨러 배기가스 열교환기

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1537101A (fr) * 1967-07-11 1968-08-23 Chausson Usines Sa Organe perturbateur pour conduit d'échangeur thermique
DE2113583B2 (de) * 1971-03-20 1979-02-22 Dieter Steinegg Appenzell Steeb (Schweiz) Wärmetauscher mit parallel zueinander angeordneten Flachrohren und Verfahren zum Herstellen des Wärmetauschers
JPS5638874B2 (de) * 1974-05-10 1981-09-09
CA1046499A (en) * 1975-01-16 1979-01-16 Borg-Warner Corporation Air side turbulizer
FR2536524A1 (fr) * 1982-11-19 1984-05-25 Nibart Jean Clair Element de garnissage pour echangeur de chaleur et echangeur de chaleur le comprenant
EP0203458B1 (de) * 1985-05-15 1988-08-24 Showa Aluminum Corporation Platten- und Rippenwärmetauscher
US4815534A (en) * 1987-09-21 1989-03-28 Itt Standard, Itt Corporation Plate type heat exchanger

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3038743B1 (de) * 2013-08-30 2023-06-07 Beijing Zehua Chemical Engineering Co., Ltd. Säulenverpackungselement, säulenverpackung sowie verpackungssäule und mischer damit

Also Published As

Publication number Publication date
EP1007893A1 (de) 2000-06-14
BR9811403A (pt) 2000-08-29
ES2191524A1 (es) 2003-09-01
JP3749436B2 (ja) 2006-03-01
DE69820880T2 (de) 2004-11-18
AU8968898A (en) 1999-03-22
CA2214255C (en) 2004-11-02
SE0000511D0 (sv) 2000-02-17
AT411397B (de) 2003-12-29
GB2345336A (en) 2000-07-05
ES2212332T3 (es) 2004-07-16
GB0003877D0 (en) 2000-04-05
GB2345336B (en) 2002-06-05
KR20010023338A (ko) 2001-03-26
SE517362C2 (sv) 2002-05-28
CA2214255A1 (en) 1999-02-28
DE69820880D1 (de) 2004-02-05
DE19882638T1 (de) 2000-08-03
SE0000511L (sv) 2000-02-17
KR100370487B1 (ko) 2003-02-05
WO1999011995A1 (en) 1999-03-11
ATE257238T1 (de) 2004-01-15
JP2001515196A (ja) 2001-09-18
ATA911198A (de) 2003-05-15
AU738890B2 (en) 2001-09-27

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