EP0380419A1 - Wärmeaustauscher mit spiralenförmig gewundenen Elementen und Verfahren zu seiner Herstellung - Google Patents

Wärmeaustauscher mit spiralenförmig gewundenen Elementen und Verfahren zu seiner Herstellung Download PDF

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Publication number
EP0380419A1
EP0380419A1 EP90400215A EP90400215A EP0380419A1 EP 0380419 A1 EP0380419 A1 EP 0380419A1 EP 90400215 A EP90400215 A EP 90400215A EP 90400215 A EP90400215 A EP 90400215A EP 0380419 A1 EP0380419 A1 EP 0380419A1
Authority
EP
European Patent Office
Prior art keywords
section
sheet metal
ribs
spiral
heat exchanger
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
EP90400215A
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English (en)
French (fr)
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EP0380419B1 (de
Inventor
Etienne Jouet
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.)
Spirec A Responsabilite Ltee Ste
Original Assignee
Spirec A Responsabilite Ltee Ste
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Publication of EP0380419A1 publication Critical patent/EP0380419A1/de
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Anticipated expiration legal-status Critical
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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
    • F28D9/04—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 being formed by spirally-wound plates or laminae

Definitions

  • the present invention relates to a spiral wound body heat exchanger and its manufacturing process.
  • a first section of the sheet which comes from one end of a diameter of the flanges is smooth, while the second section of the sheet which comes from the opposite end of this diameter carries spaced bosses ensuring the 'mutual spacing of the first and second sections of sheet metal, once these coiled together in a spiral.
  • One of the spiral chambers, traversed by a first fluid, from an inlet end to an outlet end, is delimited between a turn of the second section of sheet metal and the turn of the first section of sheet metal located outside compared to the previous one.
  • the other spiral chamber, which is traversed by the second fluid between an inlet end and an outlet end is delimited by the preceding turn of the second sheet section and the turn of this second sheet section which is located at the interior compared to the previous one.
  • At least one of the two fluids passes longitudinally through the spiral chamber which associated with it and it flows into this chamber through the free intervals delimited between the bosses forming spacers between the turns of the sheet.
  • these intervals define a relatively large overall cross-section, hence a low speed of flow of the fluid through the exchanger and a relatively low efficiency of the heat exchange.
  • the present invention relates to improvements made to this type of exchanger in order to accelerate the flow speed of the fluid flowing longitudinally through it, without complicating the manufacture of the exchanger.
  • this heat exchanger comprising a spiral body delimiting two spiral chambers nested one inside the other and traversed respectively by two fluids between which the heat exchange must take place, this body comprising, in its central part , two extreme transverse closing flanges, the two spiral chambers being delimited by a single sheet passing diametrically through each end flange, a first section of the sheet, coming from one end with a diameter of the flanges, being smooth while the second section, coming from the opposite end of this same diameter, carries projections ensuring the mutual spacing of the first and second sheet metal sections once they are coiled together in a spiral, one of the spiral chambers being delimited between a turn of the second section of sheet metal and the turn of the first section of sheet metal located outside with respect to the previous one while the other c spiral chamber is delimited by this turn of the second section of sheet metal and the turn of the first section of sheet metal located inside with respect to the previous one, characterized in that the turns of the second sheet metal section have, as projections,
  • the invention also relates to a method of manufacturing a heat exchanger of this type, in which a sheet metal strip is wound in a spiral on mandrels driven in rotation, this sheet metal strip being engaged diametrically, in its middle part. , between two pairs of opposite mandrels and having, on one side of these mandrels, a first section of smooth sheet metal and on the other side of the mandrel, a second section of sheet metal provided with protrusions, characterized in that previously formed by stamping, to form the projections of the second section of the sheet metal strip, parallel ribs, spaced apart from each other in the transverse direction, extending in the longitudinal direction of the strip, each of these ribs having a corrugated edge formed by an alternating succession of hollows and bumps.
  • the heat exchanger shown in Figure 1 comprises a spiral body 1 which is constituted by the spiral winding of a single strip of sheet metal 2. This spiral winding is produced by diametrically engaging the longitudinal edges of the part median of the sheet 2 between two pairs of mandrels 3 and 4 which can be rotated in the direction of the arrow f (FIGS. 3 and 4) around a common transverse axis 5.
  • the two mandrels 3 and 4 of each pair are arranged symmetrically with respect to the axis of rotation 5 so as to delimit between them a diametral slot in which is engaged the longitudinal edge of the sheet 2.
  • Each of the mandrels 3,4 also has a peripheral surface with a straight cross section substantially in spiral.
  • the sheet metal strip 2 comprises a first smooth section 2a situated on the right side of the winding mandrels 3, 4 in FIGS. 2 to 4.
  • the sheet metal strip 2 also comprises a second section 2b, located on the left mandrels 3,4 in Figures 2 to 4 and which has, on its lower surface parallel ribs 6, extending in the longitudinal direction of the strip 2, which are intended to constitute spacers between the different turns of the spiral body 1.
  • the lower ribs 6 are formed in the second section 2b of the strip 2 during a single drawing operation.
  • each of the ribs 6 is shaped, during stamping, so as to present a ridge, not straight but wavy, which is constituted by an alternating succession of hollows 7 and bumps 8.
  • the pitch of the corrugations is small on the order of 5 to 10 mm and the spacing of the ribs 6 is on the order of 10 to 20 mm for example.
  • the two pairs of opposite mandrels 3,4 are rotated in an anticlockwise direction, according to arrow f, the strip 2 being placed flat, at the start, as well as it is shown in FIGS. 2 and 3.
  • the first section of smooth strip 2a which extends beyond the pairs of mandrels 3,4 is left free, while the second ribbed section 2b is subjected, during winding , at a tensile force F.
  • the part of the second ribbed section 2b which is close to the mandrels 3,4 is wound 180 ° on the mandrel 3, these corrugated ribs 6 being turned outwards.
  • the spiral body forms two spiral chambers A and B nested one inside the other and which are traversed respectively by the two fluids between which the heat exchange must take place.
  • the first chamber A is delimited between a turn of the second section of strip 2b, on the side opposite to that on which the ribs 6 are formed, and the turn of the first section of strip of smooth sheet metal 2a which is located outside.
  • the second chamber B through which the second fluid passes, is itself delimited by the same turn of the second section of sheet metal strip 2b carrying the ribs 6 directed outwards, and the turn of the first section of strip of smooth sheet metal 2a is found inside and which is pressed against and held by the ribs 6.
  • the heat exchanger is completed in the manner described in patent FR-A-2596144, in particular with the winding of a piece of sheet metal 10 constituting an external jacket and fitting of flanges d end 11, of the same shape as the winding mandrels 3,4, in place of these.
  • the ribs 6 carried by the section 2b of the sheet metal strip 2 have been provided with a corrugated edge in order to allow their spiral winding, which could not be obtained with ribs with rectilinear edges. A kind of "polygonal” winding is thus obtained due to the "break" of the different ribs 6 at the location of the bumps 8.

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)
EP19900400215 1989-01-25 1990-01-24 Wärmeaustauscher mit spiralenförmig gewundenen Elementen und Verfahren zu seiner Herstellung Expired - Lifetime EP0380419B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8900903A FR2642153B1 (fr) 1989-01-25 1989-01-25 Echangeur de chaleur a corps enroule en spirale et son procede de fabrication
FR8900903 1989-01-25

Publications (2)

Publication Number Publication Date
EP0380419A1 true EP0380419A1 (de) 1990-08-01
EP0380419B1 EP0380419B1 (de) 1993-01-07

Family

ID=9378091

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900400215 Expired - Lifetime EP0380419B1 (de) 1989-01-25 1990-01-24 Wärmeaustauscher mit spiralenförmig gewundenen Elementen und Verfahren zu seiner Herstellung

Country Status (3)

Country Link
EP (1) EP0380419B1 (de)
DE (1) DE69000712T2 (de)
FR (1) FR2642153B1 (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5338450A (en) * 1993-06-28 1994-08-16 Uop Spiral-wound adsorber module
EP1114975A2 (de) 2000-01-07 2001-07-11 Renzmann + Grünewald GmbH Spiralwärmeaustauscher
EP1180656A1 (de) 2000-08-18 2002-02-20 Renzmann + Grünewald GmbH Spiralwärmeaustauscher
US6644391B1 (en) * 1999-09-20 2003-11-11 Alfa Laval Ab Spiral heat exchanger
US7600316B2 (en) 2003-08-12 2009-10-13 Rolls-Royce Plc Heat exchanger and a method of manufacturing a heat exchanger
FR3020868A1 (fr) * 2014-05-07 2015-11-13 Faurecia Sys Echappement Echangeur de chaleur en spirale et procede de fabrication correspondant
US11060796B2 (en) 2016-06-09 2021-07-13 Fluid Handling Llc 3D spiral heat exchanger

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6607027B2 (en) * 2001-04-05 2003-08-19 Modine Manufacturing Company Spiral fin/tube heat exchanger

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2313650A1 (fr) * 1975-06-05 1976-12-31 Bertin & Cie Echangeur de chaleur compact pour fluides
GB2156961A (en) * 1984-04-05 1985-10-16 Apv Int Ltd Spiral heat exchanger
EP0239490B1 (de) * 1986-03-24 1989-10-04 Etienne Jouet Spiralwärmetauscher und Verfahren zu seiner Herstellung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2313650A1 (fr) * 1975-06-05 1976-12-31 Bertin & Cie Echangeur de chaleur compact pour fluides
GB2156961A (en) * 1984-04-05 1985-10-16 Apv Int Ltd Spiral heat exchanger
EP0239490B1 (de) * 1986-03-24 1989-10-04 Etienne Jouet Spiralwärmetauscher und Verfahren zu seiner Herstellung

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5338450A (en) * 1993-06-28 1994-08-16 Uop Spiral-wound adsorber module
US6644391B1 (en) * 1999-09-20 2003-11-11 Alfa Laval Ab Spiral heat exchanger
EP1114975A2 (de) 2000-01-07 2001-07-11 Renzmann + Grünewald GmbH Spiralwärmeaustauscher
EP1114975A3 (de) * 2000-01-07 2002-03-27 Renzmann + Grünewald GmbH Spiralwärmeaustauscher
EP1180656A1 (de) 2000-08-18 2002-02-20 Renzmann + Grünewald GmbH Spiralwärmeaustauscher
US7600316B2 (en) 2003-08-12 2009-10-13 Rolls-Royce Plc Heat exchanger and a method of manufacturing a heat exchanger
US7918268B2 (en) 2003-08-12 2011-04-05 Rolls-Royce Plc Heat exchanger
FR3020868A1 (fr) * 2014-05-07 2015-11-13 Faurecia Sys Echappement Echangeur de chaleur en spirale et procede de fabrication correspondant
US11060796B2 (en) 2016-06-09 2021-07-13 Fluid Handling Llc 3D spiral heat exchanger

Also Published As

Publication number Publication date
DE69000712T2 (de) 1993-07-29
EP0380419B1 (de) 1993-01-07
DE69000712D1 (de) 1993-02-18
FR2642153B1 (fr) 1991-06-07
FR2642153A1 (fr) 1990-07-27

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