EP3433560B1 - Échangeur de chaleur et son procédé de fabrication - Google Patents

Échangeur de chaleur et son procédé de fabrication Download PDF

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Publication number
EP3433560B1
EP3433560B1 EP17715244.4A EP17715244A EP3433560B1 EP 3433560 B1 EP3433560 B1 EP 3433560B1 EP 17715244 A EP17715244 A EP 17715244A EP 3433560 B1 EP3433560 B1 EP 3433560B1
Authority
EP
European Patent Office
Prior art keywords
tubes
fins
heat exchanger
axis
equal
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.)
Not-in-force
Application number
EP17715244.4A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3433560A1 (fr
Inventor
Kamel Azzouz
Patrick Boisselle
Cédric DE VAULX
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 Systemes Thermiques SAS
Original Assignee
Valeo Systemes Thermiques SAS
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 Systemes Thermiques SAS filed Critical Valeo Systemes Thermiques SAS
Publication of EP3433560A1 publication Critical patent/EP3433560A1/fr
Application granted granted Critical
Publication of EP3433560B1 publication Critical patent/EP3433560B1/fr
Not-in-force 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
    • 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
    • F28F1/34—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 and extending obliquely
    • 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
    • F28F1/24—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 and extending transversely
    • F28F1/32—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 and extending transversely the means having portions engaging further tubular elements

Definitions

  • the fins of the same group of tubes have a monotonic profile between two neighboring tubes.
  • the fins have a sinusoidal profile, the orifices and the tubes being placed at the level of ridges and hollows of said fins.
  • the heat exchanger comprises a single group of tubes or at least two separate groups of tubes.
  • the line connecting the ends of the tubes of the same group of tubes is a sinusoid.
  • first element or second element as well as first parameter and second parameter or even first criterion and second criterion etc.
  • first element or second element as well as first parameter and second parameter or even first criterion and second criterion etc.
  • indexing is a simple indexing to differentiate and name elements or parameters or criteria that are close but not identical. This indexing does not imply a priority of an element, parameter or criterion over another and one can easily interchange such names without departing from the scope of this description. This indexing also does not imply an order in time for example to assess such or such criteria.
  • an XYZ trihedron in order to show the angle of view of each of said figures in relation to each other.
  • the axes of this trihedron can also correspond to the different orientations of the motor vehicle.
  • the X axis can thus correspond to the axis of the length of the vehicle, the Y axis to the axis of its width and the Z axis to that of its height.
  • the fins 4 form with a perpendicular to the axis of the tubes 3, that is to say with a parallel to the axis Y of the trihedron XYZ, an angle different from 0 °.
  • the heat exchanger 1 can also include a water box 5 disposed at each end of the tubes 3. These water boxes 5 allow the collection and / or distribution of the first heat-transfer fluid so that it can pass through the tubes 3.
  • the fins 4 are flat and the heat exchanger 1 comprises a single group of tubes 3 grouping together all the tubes 3 of said heat exchanger 1.
  • all of the tubes 3 are tangent to the surface fins 4 midway between two neighboring tubes 3 which forms an angle ⁇ greater than or equal to 0.5 °, and less than or equal to 10 ° with the perpendicular to the axis of the tubes 3.
  • the diagram of the figure 8 shows three curves 200, 201 and 202 corresponding to the variations of the electrical resistance for three samples of tubes 3 and fins 4 as a function of the angle a.
  • the three curves 200, 201 and 203 show that the more the angle ⁇ increases, in particular beyond 0.5 °, the lower the electrical resistance and therefore the thermal resistance.
  • an angle ⁇ of 10 ° appears as a saturation limit for the decrease in electrical resistance and therefore in thermal resistance. This means that from this value, an increase in the angle ⁇ would have little effect on the thermal resistance.
  • an angle ⁇ between 0.5 and 5 ° is an optimal.
  • the tubes 3 of the same group of tubes 3 are arranged parallel to each other with a longitudinal position offset.
  • the imaginary line connecting the ends of the tubes 3 forms with a perpendicular to the axis of the tubes (3), that is to say with a parallel to the axis Y of the trihedron XYZ, an angle different from 0 °.
  • the line connecting the ends of the tubes 3 of the same rank within the same group of tubes 3, has an angle ⁇ 'greater than 0.5 ° and less than or equal to 10 °, preferably less than or equal to 5 °, with the perpendicular to the axis of the tubes 3.
  • This third step 114 can for example be carried out by the fact that the manufacturing device for implementing the manufacturing process comprises alignment shoes. These alignment shoes are intended to press on the ends of the tubes 3 so that the ends of said tubes 3 pass from their offset longitudinal position, illustrated in the figure 10b , at an aligned position where the ends of said tubes 3 are aligned with the perpendicular to the axis of the tubes 3, as illustrated in the figure 10c .
  • the manufacturing process may also include, following the third step 114 of alignment under stress, a fourth step 116 of placing water boxes 5 on the ends of the tubes 3 and of placing covers 6 covering the space not occupied by the fins 4 between the fins 4 at the ends of the same group of tubes 3 and said water boxes 5.
  • the heat exchanger 1 due to the angle ⁇ between the tangent to the surface of the fins 4 midway between two neighboring tubes 3 and the perpendicular to the axis of the tubes 3 and constraints shear exerted by this angle ⁇ between the tubes 3 and the fins 4, reduces the thermal resistance at the orifices 40 especially when the fins 4 are expanded.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
EP17715244.4A 2016-03-21 2017-03-17 Échangeur de chaleur et son procédé de fabrication Not-in-force EP3433560B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1652424A FR3049048B1 (fr) 2016-03-21 2016-03-21 Echangeur de chaleur et son procede de fabrication.
PCT/FR2017/050629 WO2017162966A1 (fr) 2016-03-21 2017-03-17 Échangeur de chaleur et son procédé de fabrication

Publications (2)

Publication Number Publication Date
EP3433560A1 EP3433560A1 (fr) 2019-01-30
EP3433560B1 true EP3433560B1 (fr) 2020-04-15

Family

ID=56943594

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17715244.4A Not-in-force EP3433560B1 (fr) 2016-03-21 2017-03-17 Échangeur de chaleur et son procédé de fabrication

Country Status (4)

Country Link
EP (1) EP3433560B1 (zh)
CN (1) CN109477700B (zh)
FR (1) FR3049048B1 (zh)
WO (1) WO2017162966A1 (zh)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1440217A (en) * 1920-09-23 1922-12-26 James D Flood Radiator
US1837905A (en) * 1928-01-03 1931-12-22 Hart & Hutchinson Company Radiator
GB9616956D0 (en) * 1996-08-13 1996-09-25 Caradon Ideal Ltd Heat exchangers
US6249968B1 (en) * 1999-08-25 2001-06-26 Visteon Global Technologies, Inc. Method of making a robust gosper fin heat exchanger
CN2896189Y (zh) * 2006-03-17 2007-05-02 张德地 一种列管换热器
CN203115975U (zh) * 2013-03-08 2013-08-07 河南永兴锅炉集团有限公司 铸铁斜片式省煤器
CN103591832B (zh) * 2013-11-22 2016-04-20 茂名重力石化机械制造有限公司 一种斜翅片管换热器

Non-Patent Citations (1)

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

Also Published As

Publication number Publication date
WO2017162966A1 (fr) 2017-09-28
EP3433560A1 (fr) 2019-01-30
CN109477700A (zh) 2019-03-15
FR3049048A1 (fr) 2017-09-22
FR3049048B1 (fr) 2019-04-19
CN109477700B (zh) 2021-05-11

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