EP0280612A1 - Wärmetauscher mit Rohrkanälen und internem Turbulenzeinbau - Google Patents

Wärmetauscher mit Rohrkanälen und internem Turbulenzeinbau Download PDF

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Publication number
EP0280612A1
EP0280612A1 EP88400337A EP88400337A EP0280612A1 EP 0280612 A1 EP0280612 A1 EP 0280612A1 EP 88400337 A EP88400337 A EP 88400337A EP 88400337 A EP88400337 A EP 88400337A EP 0280612 A1 EP0280612 A1 EP 0280612A1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
tubes
disturbance
exchanger according
tube
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.)
Withdrawn
Application number
EP88400337A
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English (en)
French (fr)
Inventor
Gilbert-Gustave Lelièvre
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 Chausson Thermique SA
Original Assignee
Valeo Chausson Thermique 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 Chausson Thermique SA filed Critical Valeo Chausson Thermique SA
Publication of EP0280612A1 publication Critical patent/EP0280612A1/de
Withdrawn legal-status Critical Current

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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
    • 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
    • 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
    • F28F1/40—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only inside the tubular element
    • F28F1/405—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only inside the tubular element and being formed of wires

Definitions

  • the invention relates to heat exchangers with a tube bundle, that is to say exchangers, the tubes of which open into at least one header plate.
  • Exchangers of this nature are used in various fields of technology and in particular for cooling the circulation fluid of heat engines and for heating the passenger compartment of motor vehicles.
  • the disturbers used are most often shaped as a helix and it has appeared that the flow of the fluid in the tubes causes displacements of the disturbers, which causes abrasion of the tubes and sometimes perforations thereof.
  • the present invention creates a new exchanger in which the disturber arranged in the tubes occupies a fixed position relative to the wall of the tube which contains it and it can in no case be moved by the circulating liquid. In this way, the risks of mechanical abrasion inside the tube are eliminated.
  • the tube bundle heat exchanger comprising tubes opening into at least one collector plate, said tubes containing an internal disturbance, is characterized in that the initial external width of the turns of the disturbance is greater than the internal diameter tubes so that each disruptor is elastically deformed and exerts pressure against the internal wall of the tube which contains it when it is placed in it.
  • the heat exchanger shown in the drawing comprises tubes 1 which can have the shape of a pin or be straight depending on whether the exchanger comprises one or more collector plates.
  • the ends of the tubes 1 are engaged in a collecting plate 2, itself covered by a water box 3.
  • the water box 3 comprises a central partition 4 delimiting two chambers 5 and 6 which communicate with end fittings 7 and 8 for respectively supplying the discharge of the liquid which must circulate in the tubes 1.
  • the tubes 1 are provided with heat sinks 9 constituted, for example, by fins.
  • disturbers 10 are arranged in the tubes 1 or each of the two rectilinear sections of the tubes 1 when the latter are bent into pins.
  • the disturbers 10 are produced by a wire, preferably wound in a helix and according to the invention, the diameter ⁇ 1 of the turns of the propeller is larger than the inside diameter ⁇ of the tubes 1.
  • each disturber 10 is folded back to form a finger 11 extending towards the inside of the terminal turn, for example in a radial direction.
  • a rod 12 forming a mandrel is advantageously used which is engaged inside the turns to come to bear against the finger 11.
  • the rod 12 is then moved along the arrow F1, which has the effect of gradually introducing the first turn, the external generator of which bears against the inner wall of the tube 1.
  • the turns of the disturber 10 are elastically deformed, that is to say that the pitch of the turns increases to a sufficient extent so that said turns can slide at inside the tube 1.
  • the pressure exerted by the disturber inside the tube means that it cannot be moved by the circulating liquid despite the disturbed flow of this liquid.
  • the disturber 10 described in the foregoing is preferably made from a wire of circular section made of metal which is a good heat conductor, for example aluminum. It would not be departing from the scope of the invention to produce the disturber from a wire having a polygonal shape in section, for example that of a triangle, the base of which would press against the internal wall of the tube.
  • the disturber other than metal, for example plastic or elastomer.
  • FIG. 5 illustrates a variant according to which the disturber is not wound in a helix but is shaped in a zigzag.
  • the initial width of the successive turns is, as in the previous example, greater than the internal diameter of the tube 1 so that the disturber is slightly deformed during its engagement so that the elbows 13 are tightened elastically against the internal wall of the tube.
  • one end of the perforator forms a finger 11 deviating from the internal wall of the tube.
  • the establishment of disruptor is carried out as previously by means of a rod, but this is split over its entire length to overlap it and to bear only on finger 11.

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)
EP88400337A 1987-02-23 1988-02-16 Wärmetauscher mit Rohrkanälen und internem Turbulenzeinbau Withdrawn EP0280612A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8702320 1987-02-23
FR8702320A FR2611879B1 (fr) 1987-02-23 1987-02-23 Echangeur de chaleur a faisceau tubulaire et a perturbateur interne

Publications (1)

Publication Number Publication Date
EP0280612A1 true EP0280612A1 (de) 1988-08-31

Family

ID=9348179

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88400337A Withdrawn EP0280612A1 (de) 1987-02-23 1988-02-16 Wärmetauscher mit Rohrkanälen und internem Turbulenzeinbau

Country Status (2)

Country Link
EP (1) EP0280612A1 (de)
FR (1) FR2611879B1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0661511A1 (de) * 1993-12-31 1995-07-05 Hoechst Aktiengesellschaft Wärmeaustauscherrohr mit Einbauelement
FR2720020A1 (fr) * 1994-05-19 1995-11-24 Behr Gmbh & Co Procédé de fabrication et de montage de générateurs de turbulence en hélice en fil métallique dans des tubes d'échangeurs de chaleur et dispositif pour la mise en Óoeuvre du procédé.
DE102008051812A1 (de) * 2008-10-15 2010-04-29 Gea Air Treatment Gmbh Wärmeaustauscher mit Rohren
WO2010069461A1 (en) * 2008-12-19 2010-06-24 Haldor Topsøe A/S Support for a helical coil inserted in a heat exchanger tube
WO2019055390A1 (en) * 2017-09-13 2019-03-21 Carrier Corporation HELICOIDAL INSERT FOR HEAT EXCHANGER IN CALANDRE

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3916779C2 (de) * 1988-09-30 1998-04-09 Valeo Sistemi Termici S P A Wärmetauscher, insbesondere für die Heizungsanlage eines Kraftfahrzeuges
FR2787564B1 (fr) * 1998-12-22 2001-03-02 Total Raffinage Distribution Perfectionnements apportes aux tubes d'echangeurs thermiques, en vue d'eviter le colmatage de leur entree par des materiaux en suspension

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR771161A (fr) * 1933-04-10 1934-10-02 Perfectionnements aux tubes de transmission de chaleur
FR2145393A1 (de) * 1971-07-12 1973-02-23 Chaffoteaux Et Maury
FR2340526A1 (fr) * 1976-02-09 1977-09-02 Smick Ronald Chicane pour conduit d'echangeur de chaleur tel qu'un tube a fumee
FR2436959A1 (fr) * 1978-09-19 1980-04-18 Ferodo Sa Perfectionnements apportes aux echangeurs de chaleur tubulaires et aux agitateurs destines a de tels echangeurs
EP0122746A1 (de) * 1983-04-04 1984-10-24 Modine Manufacturing Company Mehrfachspiralenturbulator für Wärmetauscher

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR771161A (fr) * 1933-04-10 1934-10-02 Perfectionnements aux tubes de transmission de chaleur
FR2145393A1 (de) * 1971-07-12 1973-02-23 Chaffoteaux Et Maury
FR2340526A1 (fr) * 1976-02-09 1977-09-02 Smick Ronald Chicane pour conduit d'echangeur de chaleur tel qu'un tube a fumee
FR2436959A1 (fr) * 1978-09-19 1980-04-18 Ferodo Sa Perfectionnements apportes aux echangeurs de chaleur tubulaires et aux agitateurs destines a de tels echangeurs
EP0122746A1 (de) * 1983-04-04 1984-10-24 Modine Manufacturing Company Mehrfachspiralenturbulator für Wärmetauscher

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0661511A1 (de) * 1993-12-31 1995-07-05 Hoechst Aktiengesellschaft Wärmeaustauscherrohr mit Einbauelement
FR2720020A1 (fr) * 1994-05-19 1995-11-24 Behr Gmbh & Co Procédé de fabrication et de montage de générateurs de turbulence en hélice en fil métallique dans des tubes d'échangeurs de chaleur et dispositif pour la mise en Óoeuvre du procédé.
DE102008051812A1 (de) * 2008-10-15 2010-04-29 Gea Air Treatment Gmbh Wärmeaustauscher mit Rohren
WO2010069461A1 (en) * 2008-12-19 2010-06-24 Haldor Topsøe A/S Support for a helical coil inserted in a heat exchanger tube
US9863724B2 (en) 2008-12-19 2018-01-09 Haldor Topsoe A/S Support for a helical coil inserted in a heat exchanger tube
WO2019055390A1 (en) * 2017-09-13 2019-03-21 Carrier Corporation HELICOIDAL INSERT FOR HEAT EXCHANGER IN CALANDRE

Also Published As

Publication number Publication date
FR2611879B1 (fr) 1990-06-22
FR2611879A1 (fr) 1988-09-09

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