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EP0685699A1 - Wärmetauscher zur Behandlung eines Fluidums - Google Patents

Wärmetauscher zur Behandlung eines Fluidums Download PDF

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Publication number
EP0685699A1
EP0685699A1 EP95108060A EP95108060A EP0685699A1 EP 0685699 A1 EP0685699 A1 EP 0685699A1 EP 95108060 A EP95108060 A EP 95108060A EP 95108060 A EP95108060 A EP 95108060A EP 0685699 A1 EP0685699 A1 EP 0685699A1
Authority
EP
European Patent Office
Prior art keywords
fluid
heat exchanger
pairs
bars
plates
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
EP95108060A
Other languages
English (en)
French (fr)
Other versions
EP0685699B1 (de
Inventor
Gilles Caumel
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 Thermique Moteur SA
Original Assignee
Valeo Thermique Moteur SA
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 Valeo Thermique Moteur SA filed Critical Valeo Thermique Moteur SA
Publication of EP0685699A1 publication Critical patent/EP0685699A1/de
Application granted granted Critical
Publication of EP0685699B1 publication Critical patent/EP0685699B1/de
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
    • 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
    • F28D9/0062—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 spaced plates with inserted elements

Definitions

  • the invention relates to a heat exchanger for the treatment of a fluid, in particular for the cooling of a high temperature air flow coming from the turbo compressor of an industrial vehicle.
  • Heat exchangers are already known which comprise two fluid boxes, a multiplicity of intermediate bars arranged in pairs, as well as a multiplicity of plates arranged in pairs to frame said pairs of bars and form, in collaboration with them, circulation chambers of the fluid.
  • the object of the invention is in particular to remedy this drawback.
  • each box fluid comprises a manifold plate provided with openings adapted to receive end portions of the pairs of bars, and openings adapted to allow the free circulation of the fluid between the chambers and the fluid boxes.
  • the ends of the pairs of plates are folded back and fixed against the collector plates so that two facing plates, belonging respectively to two consecutive chambers, have their ends turned towards one another, thus forming conduits in which can circulate an air flow to be treated.
  • the heat exchanger thus formed no longer requires the use of transverse bars which are advantageously replaced by the openings made in the collector plates.
  • the full space between two openings then serves as a separation interlayer between two chambers, thus directly creating air circulation ducts.
  • conduits will also be made more rigid by placing the ends of the plates belonging to two consecutive chambers in head-to-tail position.
  • the folded ends of the pairs of plates are advantageously turned towards one another.
  • each bar comprises a substantially linear central part, which extends parallel to the longitudinal edge of the plates and extended on either side by a bent part to allow the embedding of said bar in an opening, each bent part being extended by an end part housed in a fluid box.
  • each pair of bars is embedded in the same opening which serves to both housing for bars and fluid circulation mouth.
  • the end parts of the pairs of bars are folded back on themselves by forming an arc of a circle, so that these end parts are in contact to block said bars against the ends of the opening in which they are housed.
  • each bar of a pair of bars is embedded in an opening of the same section as said bar, forming a housing.
  • Each housing is positioned substantially symmetrically on either side of a central opening forming a mouth for circulation of the fluid.
  • each bar is immobilized independently.
  • the collector plates comprise fixing lugs for holding the folded ends belonging respectively to a first and a last chamber.
  • the conduits comprise first spacers forming fins, to increase the heat exchange surface.
  • conduits advantageously constituted by plates, the ends of which are head to tail, provide effective protection for these fragile fins, and in particular during the assembly step.
  • the external faces of a first and of a last plate are capable of receiving second spacers forming fins.
  • the invention provides that these second spacers have a height substantially double that of the first spacers, which significantly increases the heat exchange surface.
  • the exchanger comprises at least one end cheek capable of protecting a second interlayer and integral with the two fluid boxes.
  • Figure 1 shows schematically a part of an exchanger of the type known as bars and plates which comprises pairs of bars framed by two plates 2a and 2b.
  • the plate 2a is the so-called lower plate, the plate 2b being the so-called upper plate.
  • Each bar 1 defines a level, level 1 corresponding to the first bar and level n to the last bar.
  • each level 1 corresponds to two bars 1a and 1b forming a pair of bars.
  • Each pair thus forms, in collaboration with the pair of plates 2a and 2b which surround it, a chamber 3 in which a refrigerant fluid coming from a fluid box 4 can circulate.
  • This cooling fluid may for example be the cooling water of a supercharged engine of an industrial vehicle.
  • Each plate 2 comprises an end portion 5 curved so that it forms a right angle with the main part of the plate.
  • each lower plate 2a has an end portion 5a bent downward
  • each upper plate 2b has an end portion 5b bent upward.
  • This arrangement advantageously makes it possible to produce, between two consecutive chambers 3, a free space forming a conduit 6 in which the fluid to be treated can flow.
  • This fluid is for example an air flow coming from a turbocharger of an industrial vehicle. Its temperature can be notably higher than 100 ° C., which requires efficient cooling, such as that produced by the exchanger according to the invention.
  • To increase the heat exchange surface between the air flow 15 to be treated and the cooling fluid there are housed, inside the conduits 6, first spacers 7 forming dissipation fins.
  • the two end parts 5 of the plates are substantially in contact with a collecting plate 8 serving as a cover for a fluid box 4.
  • each manifold plate 8 comprises openings 9 of substantially parallel-piped shape and parallel to each other.
  • Each of these openings 9 is capable of forming a housing for receiving the ends C of a pair of bars and / or forming a mouth to allow the free circulation of the coolant. between a chamber 3 and a fluid box 4 opposite which it is located.
  • the openings 9 extend parallel to one of the sides of the collecting plate 8, which is parallel to the plane of the chambers 3.
  • the length of an opening 9 can only be less than the distance which separates two bars 1a and 1b of the same pair.
  • each bar comprises a substantially linear central part A, which extends parallel to the longitudinal edge of the plates 2, and extended on either side by a bent part B, itself extended by a terminal part C.
  • Each bar can thus be embedded thanks to its bent part B in an opening 9, the terminal part C then being housed in the fluid box 4.
  • an opening 9a is made to correspond to a chamber 3.
  • Each opening 9a is able both to receive the ends C of a pair of bars, and to allow the free circulation of the refrigerant.
  • the height of the opening 9a is substantially equal (by lower value) to the distance which separates two plates 2a and 2b from the same chamber 3 and its length is substantially equal (by higher value) to the distance which separates the outer edges of the bent parts C of a pair of bars.
  • each end part C of the same pair of bars is folded back on itself by forming an arc of a circle oriented towards the center of the opening 9a.
  • the radius of curvature of the terminal parts C is chosen so that two terminal parts C of one same pair of bars are in contact at an end portion 13 and repel each other. Under these conditions, each bar 1 is blocked by stress against the ends of the opening 9a in which it is embedded.
  • FIG. 3 According to a second embodiment of the invention (FIG. 3), three openings 9b and 9c are grouped into a chamber 3 grouped into two categories according to their use.
  • the length of these openings 9b is substantially less than the space which separates the internal edges of the two bent parts C of a pair of bars, their height being substantially equal (by lower value) to the space between two plates 2a and 2b in the same room 3.
  • a second category of openings 9c forming a housing, is capable of receiving a bar 1 and only one. Its section is therefore identical to that of the bar 1 (by a substantially greater value).
  • Each opening 9c forming a housing for a bar is positioned substantially symmetrically on either side of the opening 9b forming a mouth.
  • Each bar 1 of a pair is therefore blocked independently in an opening 9c.
  • the end parts C of the bars 1 are linear and only constitute a simple extension of the bent parts B.
  • the chambers are stacked, before brazing, by means of the fixing of two fixing lugs 10a and 10b, respectively below the location provided for the terminal part 5a of the first plate 2a and above the location provided for the terminal part 5b of the last plate 2b.
  • second inserts are fixed under the first plate 5a and on the last plate 5b, forming fins.
  • a plate called "end cheek" 12 will be housed below the lower tab 11, and above the upper tab 11 .
  • These cheeks 12 will be fixed directly to the fluid boxes 4.
  • These cheeks may also include buttonholes to allow the exchanger to be fixed.
  • the exchanger is then brazed as described, either in a salt bath or in the oven.
  • the brazing process described by French patent 69 433 487 filed by the company CHAUSSON will preferably be implemented.
  • the shape of the terminal parts of the bars can be modified to facilitate the circulation of the fluid.

Landscapes

  • 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)
EP19950108060 1994-05-30 1995-05-26 Wärmetauscher zur Behandlung eines Fluidums Expired - Lifetime EP0685699B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9406554 1994-05-30
FR9406554A FR2720489B1 (fr) 1994-05-30 1994-05-30 Echangeur de chaleur pour le traitement d'un fluide.

Publications (2)

Publication Number Publication Date
EP0685699A1 true EP0685699A1 (de) 1995-12-06
EP0685699B1 EP0685699B1 (de) 1998-07-22

Family

ID=9463647

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19950108060 Expired - Lifetime EP0685699B1 (de) 1994-05-30 1995-05-26 Wärmetauscher zur Behandlung eines Fluidums

Country Status (3)

Country Link
EP (1) EP0685699B1 (de)
DE (1) DE69503570T2 (de)
FR (1) FR2720489B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180007941A1 (en) * 2011-07-28 2018-01-11 Nestec Sa Methods and Devices for Heating or Cooling Viscous Materials
US20180156547A1 (en) * 2016-12-06 2018-06-07 Denso Marston Ltd. Heat exchanger

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2344588A (en) * 1941-01-06 1944-03-21 Blauvelt Associates Inc Heat transfer device
FR2479438A1 (fr) 1980-03-26 1981-10-02 Chausson Usines Sa Echangeur pour le refroidissement d'un fluide a haute temperature
US4501321A (en) * 1982-11-10 1985-02-26 Blackstone Corporation After cooler, charge air cooler and turbulator assemblies and methods of making the same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2344588A (en) * 1941-01-06 1944-03-21 Blauvelt Associates Inc Heat transfer device
FR2479438A1 (fr) 1980-03-26 1981-10-02 Chausson Usines Sa Echangeur pour le refroidissement d'un fluide a haute temperature
GB2073395A (en) * 1980-03-26 1981-10-14 Chausson Usines Sa A heat exchanger for cooling a high temperature fluid
US4501321A (en) * 1982-11-10 1985-02-26 Blackstone Corporation After cooler, charge air cooler and turbulator assemblies and methods of making the same

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180007941A1 (en) * 2011-07-28 2018-01-11 Nestec Sa Methods and Devices for Heating or Cooling Viscous Materials
US11064720B2 (en) * 2011-07-28 2021-07-20 Société des Produits Nestlé S.A. Methods and devices for heating or cooling viscous materials
US11684077B2 (en) 2011-07-28 2023-06-27 Société des Produits Nestlé S.A. Methods and devices for heating or cooling viscous materials
US12137711B2 (en) 2011-07-28 2024-11-12 Société des Produits Nestlé S.A. Methods and devices for heating or cooling viscous materials
US12426613B2 (en) 2011-07-28 2025-09-30 Societe Des Produits Nestle S.A. Methods and devices for heating or cooling viscous materials
US20180156547A1 (en) * 2016-12-06 2018-06-07 Denso Marston Ltd. Heat exchanger
CN108151559A (zh) * 2016-12-06 2018-06-12 电装马斯顿有限公司 换热器
CN108151559B (zh) * 2016-12-06 2020-11-06 电装马斯顿有限公司 换热器
GB2557320B (en) * 2016-12-06 2021-10-27 Denso Marston Ltd Heat exchanger

Also Published As

Publication number Publication date
EP0685699B1 (de) 1998-07-22
DE69503570T2 (de) 1998-11-19
FR2720489A1 (fr) 1995-12-01
FR2720489B1 (fr) 1996-07-12
DE69503570D1 (de) 1998-08-27

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