EP3526535B1 - Plaque d'empilage pour échangeur de chaleur à plaques empilées, et échangeur de chaleur à plaques empilées associé - Google Patents

Plaque d'empilage pour échangeur de chaleur à plaques empilées, et échangeur de chaleur à plaques empilées associé Download PDF

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Publication number
EP3526535B1
EP3526535B1 EP17784292.9A EP17784292A EP3526535B1 EP 3526535 B1 EP3526535 B1 EP 3526535B1 EP 17784292 A EP17784292 A EP 17784292A EP 3526535 B1 EP3526535 B1 EP 3526535B1
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EP
European Patent Office
Prior art keywords
stacking
substantially flat
stacked
flat base
plates
Prior art date
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Application number
EP17784292.9A
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German (de)
English (en)
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EP3526535A1 (fr
Inventor
José Antonio De La Fuente Romero
Eva Tomas Herrero
Roberto Fernandez Martinez
Teresa CONTE OLIVEROS
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.)
Valeo Termico SA
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Valeo Termico SA
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Classifications

    • 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
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/0031—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other
    • F28D9/0043—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another
    • F28D9/005—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another the plates having openings therein for both heat-exchange media

Definitions

  • this invention relates to a stacking plate for a stacked plate heat exchanger configured in such a way that when stacked and connected to another stacking plate interference problems between them are minimized or eliminated.
  • the invention relates to stacking plates as defined in the preamble of claim 1, and as disclosed in US 2013/126137A .
  • a second aspect of this invention relates to a stacked plate heat exchanger comprising a plurality of stacking plates according to the first aspect of the invention.
  • the invention applies especially to heat exchangers (heating or cooling) in motor vehicles, in particular in TOC (Transmission Oil Cooler) and EOC (Engine Oil Cooler) applications.
  • TOC Transmission Oil Cooler
  • EOC Engine Oil Cooler
  • the present configuration of oil coolers available on the market corresponds to that of a metal heat exchanger generally made of stainless steel or aluminium. Most of the components of an oil cooler are metal and are assembled by mechanical means and then joined by welding or brazing to ensure the appropriate level of leakage required for the application.
  • the main function of the oil cooler is to exchange heat between two fluids, the coolant and the oil. In addition to this it must satisfy other functions such as maintaining a low fluid pressure drop, withstanding the working conditions of the fluid, withstanding environmental conditions, providing a connection to oil and coolant circuits, etc.
  • an oil cooler comprises a set of plates stacked alternately to allow circulation and prevent contact between the fluids, sealing off both circuits, the coolant circulation and the oil circulation.
  • a vertical force is applied to compact the device and compensate for the lack of actual contact.
  • the circuits comprising the spaces between the plates have to be completely sealed both within the cooler, that is to say the areas surrounding the passage openings defined in the plates, and laterally, that is to say around the outer perimeter of the plates.
  • the manner of resolving this problem is by means of raised edges which project beyond the perimeter of a substantially flat base of the plate with a particular inclination so as to close and join together the edges of each plate with those of the plate onto which it is stacked by means of pressure.
  • the plate has a combination of longitudinal dimensions, height dimensions (that is to say the dimensions of its raised edges) and the angle of its raised edges, which allow the whole to be adjusted.
  • Patent US7717164B2 describes a stacked plate heat exchanger formed by stacking plates having the characteristics of the precharacterizing clause of Claim 1 of this invention.
  • a first aspect of this invention relates to a stacking plate as defined in claim 1.
  • first and second portions of the mentioned raised border are characteristically projected beyond the perimeter of the substantially flat base in accordance with first and second lateral angles with respect to the said principal plane respectively, in which the said first and second lateral angles are different from each other.
  • the first lateral angle is smaller than the second lateral angle.
  • first portions project from straight segments of the base perimeter and the second portions project from curved segments thereof, and the first lateral angle is smaller than the second, interference in curved areas is minimized when stacking plates designed according to the first aspect of the invention are stacked and nested, these said curved areas being those where suitable contact between the faces of the raised edges is most difficult.
  • a design of stacking plate with different lateral angles at the raised edges of the straight segments of the perimeter of the base of the plate in comparison with those of the curved segments is provided in order to compensate for the fact that they behave differently when they are nested together.
  • This solution makes it possible to provide assembly conditions that differ between the different areas, that is to say between the raised edges of the different segments of the perimeter of the base of the stacking plates, in order to solve or minimize problems of interference between them.
  • the first lateral angle has a value of between 8° and 10.5° while the second lateral angle has a value of between 11° and 14°.
  • angles having other values which differ from those indicated are also covered by this invention.
  • the curved segments mentioned form rounded arrises of the substantially flat base and are interconnected by the straight segments mentioned.
  • the substantially flat base is of rectangular shape, including four of the said rounded arrises and four of the said straight segments which are each interconnected by rounded arrises.
  • the stacking plate according to the first aspect of the invention comprises more than two portions of the raised edge mentioned which project beyond the perimeter of the substantially flat base according to more than two lateral angles with respect to the principal plane respectively, in which the more than two lateral angles are different from each other.
  • a second aspect of this invention relates to a stacked plate heat exchanger comprising a plurality of stacking plates according to the first aspect of the invention, including:
  • the first and second stacking plates are stacked and fixed one above the other alternately, with at least part of their raised edges nested together by means of pressure.
  • Figure 1 likewise illustrates part of the stacked plate heat exchanger according to the second aspect of this invention, in particular a plurality of stacking plates 1 which include:
  • First stacking plate 1a and second stacking plate 1b are stacked and attached one above the other alternately, with their raised edges 2b stacked together through pressure.
  • the raised edge includes first portions 2b1 projecting beyond curved segments of the perimeter of substantially flat base 2a, in particular from four curved segments corresponding to four rounded arrises of the said perimeter, together with second portions 2b2 projecting beyond straight segments of the said perimeter of substantially flat base 2a, in particular from four flat segments which are each interconnected by the said four rounded arrises.
  • Figure 3b shows how first portions 2b1 project beyond the curved segments of the perimeter of substantially flat base 2a according to a first lateral angle ⁇ with respect to the said principal plane
  • Figure 3a shows how second portions 2b2 project beyond the curved segments of the said perimeter according to a second lateral angle ⁇ , the first lateral angle ⁇ and the second ⁇ being different from each other, in particular the first ⁇ being smaller than the second ⁇ , for the embodiment illustrated.
  • Figures 4a and 4b show the effect achieved through the difference in lateral angles ⁇ and ⁇ , as already explained in a previous section.
  • FIGs 4a and 4b illustrate an initial assembly position in which the three stacking plates according to the invention are stacked together but no vertical compression force has yet been applied (or, if it has been applied, it is very small), in such a way that while raised edges 2b1 projecting from the straight segments of the perimeter of bases 2a of the stacked plates are in contact with each other, as will be seen in Figure 4a , raised edges 2b2 projecting from the curved segments of the said perimeter are not, there being a space between them in order to prevent interferences, as will be seen in Figure 4b .
  • the present inventors have performed experiments with stacking plates constructed, stacked and assembled together, and have achieved as a result that no spaces between the plates or any visible deformations between the raised edges thereof are produced, neither before or after they are welded together by brazing.
  • the present inventors have carried out digital computer simulations of assembled sets of rectangular stacking plates designed according to a first aspect of the invention and conventional rectangular stacking plates, obtaining as a result values for Von Mises stress levels which are approximately 25% smaller in the set of plates according to this invention than those in conventional stacks, in the areas experiencing greatest stress, that is to say in the areas corresponding to the raised edges projecting from the shortest straight segments of the perimeters of the bases of the stacking plates.

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

Claims (6)

  1. Plaque d'empilage (1, 1a, 1b) pour un échangeur de chaleur à plaques empilées, comprenant :
    une base sensiblement plane (2a) s'étendant le long d'un plan principal muni de premières ouvertures de passage (7) et de seconde ouvertures de passage (8) pour le passage, respectivement, d'un premier milieu et d'un second milieu, et
    un bord relevé (2b) se projetant au-delà du périmètre de ladite base sensiblement plane (2a) et l'entourant de façon continue,
    caractérisée en ce que des premières parties (2b1) et des secondes parties (2b2) dudit bord relevé (2b) se projettent au-delà du périmètre de la base sensiblement plane (2a) selon un premier angle latéral (α) et un second angle latéral (µ) par rapport, respectivement, audit plan principal, ledit premier angle latéral (α) et ledit second angle latéral (µ) étant différents l'un de l'autre, et en ce que lesdites premières parties (2b1) se projettent à partir de segments droits du périmètre de la base sensiblement plane (2a) tandis que lesdites secondes parties (2b2) se projettent à partir de segments incurvés correspondants.
  2. Plaque d'empilage selon la revendication 1, dans laquelle le premier angle latéral (α) est inférieur au second angle latéral (µ).
  3. Plaque d'empilage selon la revendication 2, dans laquelle le premier angle latéral (α) a une valeur comprise entre 8° et 10,5° tandis que le second angle latéral a une valeur comprise 11° et 14°.
  4. Plaque d'empilage selon l'une quelconque des revendications précédentes, dans laquelle lesdits segments incurvés forment des arêtes arrondies de la base sensiblement plane (2a) et sont interconnectés par lesdits segments droits.
  5. Plaque d'empilage selon la revendication 4, dans laquelle la base sensiblement plane (2a) est de forme rectangulaire, incluant quatre desdites arêtes arrondies et quatre desdits segments droits qui interconnectent chaque paire desdites arêtes arrondies.
  6. Échangeur de chaleur à plaques empilées comprenant une pluralité de plaques d'empilage (1) selon l'une quelconque des revendications précédentes, comprenant :
    des premières plaques d'empilage (1a) dans lesquelles les premières ouvertures de passage (7) sont situées sur la base sensiblement plane (2a), tandis que les secondes ouvertures de passage (8) sont situées sur des formations annulaires relevées ; et
    des secondes plaques d'empilage (1b) dans lesquelles les secondes ouvertures de passage (8) sont situées sur la base sensiblement plane (2a), tandis que les premières ouvertures de passage (7) sont situées sur des formations annulaires relevées ;
    lesdites premières plaques d'empilage (la) et lesdites secondes plaques d'empilage (1b) étant empilées et fixées les unes sur les autres en alternance, avec au moins une partie de leurs bords relevés (2b) imbriqués ensemble par pression.
EP17784292.9A 2016-10-17 2017-10-16 Plaque d'empilage pour échangeur de chaleur à plaques empilées, et échangeur de chaleur à plaques empilées associé Active EP3526535B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES201631339A ES2664103B1 (es) 2016-10-17 2016-10-17 Placa de apilamiento para un intercambiador de calor de placas apiladas y un intercambiador de calor de placas apiladas
PCT/EP2017/076365 WO2018073180A1 (fr) 2016-10-17 2017-10-16 Plaque d'empilage pour échangeur de chaleur à plaques empilées, et échangeur de chaleur à plaques empilées associé

Publications (2)

Publication Number Publication Date
EP3526535A1 EP3526535A1 (fr) 2019-08-21
EP3526535B1 true EP3526535B1 (fr) 2020-09-09

Family

ID=60083998

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17784292.9A Active EP3526535B1 (fr) 2016-10-17 2017-10-16 Plaque d'empilage pour échangeur de chaleur à plaques empilées, et échangeur de chaleur à plaques empilées associé

Country Status (4)

Country Link
EP (1) EP3526535B1 (fr)
CN (1) CN110418932B (fr)
ES (1) ES2664103B1 (fr)
WO (1) WO2018073180A1 (fr)

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0742418B1 (fr) * 1995-05-10 1998-12-09 Längerer & Reich GmbH Echangeur de chaleur à plaques
DE19750748C2 (de) * 1997-11-14 2003-04-24 Behr Gmbh & Co Plattenwärmetauscher
FR2795166B1 (fr) * 1999-06-21 2001-09-07 Valeo Thermique Moteur Sa Echangeur de chaleur a plaques, en particulier pour le refroidissement d'une huile de vehicule automobile
DE10228263A1 (de) * 2002-06-25 2004-01-22 Behr Gmbh & Co. Plattenwärmetauscher in Stapelbauweise
DE10349141A1 (de) * 2003-10-17 2005-05-12 Behr Gmbh & Co Kg Stapelscheibenwärmeübertrager, insbesondere Ölkühler für Kraftfahrzeuge
US20110024095A1 (en) * 2009-07-30 2011-02-03 Mark Kozdras Heat Exchanger with End Plate Providing Mounting Flange
DE102010028660A1 (de) * 2010-05-06 2011-11-10 Behr Industry Gmbh & Co. Kg Stapelscheiben-Wärmetauscher
DE102010040321A1 (de) * 2010-09-07 2012-04-19 Behr Gmbh & Co. Kg Stapelscheibe für einen Wärmeübertrager
CN202195728U (zh) * 2011-08-03 2012-04-18 南京工业大学 具有介质均分器的层叠板翅结构换热器
JP6154122B2 (ja) * 2012-12-12 2017-06-28 株式会社マーレ フィルターシステムズ 多板積層式熱交換器
CN103471434B (zh) * 2013-09-25 2017-12-01 缪志先 相同板片材料厚度不同板间距流道高度的盒形层叠换热器
CN103486886B (zh) * 2013-09-25 2018-02-27 缪志先 不同板材厚度不同板间距流道高度的盒形层叠换热器
DE102013220313B4 (de) * 2013-10-08 2023-02-09 Mahle International Gmbh Stapelscheiben-Wärmetauscher
KR101813048B1 (ko) * 2014-10-30 2017-12-29 린나이코리아 주식회사 플레이트 접합형 열교환기

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP3526535A1 (fr) 2019-08-21
ES2664103A1 (es) 2018-04-18
WO2018073180A1 (fr) 2018-04-26
CN110418932A (zh) 2019-11-05
ES2664103B1 (es) 2019-01-30
CN110418932B (zh) 2021-06-18

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