EP1028303B1 - Rippe für Wärmetauscher - Google Patents

Rippe für Wärmetauscher Download PDF

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Publication number
EP1028303B1
EP1028303B1 EP99102936A EP99102936A EP1028303B1 EP 1028303 B1 EP1028303 B1 EP 1028303B1 EP 99102936 A EP99102936 A EP 99102936A EP 99102936 A EP99102936 A EP 99102936A EP 1028303 B1 EP1028303 B1 EP 1028303B1
Authority
EP
European Patent Office
Prior art keywords
ribs
wire
edge
edges
rib
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.)
Expired - Lifetime
Application number
EP99102936A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1028303A1 (de
Inventor
Mario Verkuijlen
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.)
Nederlandse Radiateuren Fabriek BV
Original Assignee
Nederlandse Radiateuren Fabriek BV
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 Nederlandse Radiateuren Fabriek BV filed Critical Nederlandse Radiateuren Fabriek BV
Priority to ES99102936T priority Critical patent/ES2154499T3/es
Priority to AT99102936T priority patent/ATE199041T1/de
Priority to EP99102936A priority patent/EP1028303B1/de
Priority to DE59900039T priority patent/DE59900039D1/de
Publication of EP1028303A1 publication Critical patent/EP1028303A1/de
Application granted granted Critical
Publication of EP1028303B1 publication Critical patent/EP1028303B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D49/00—Sheathing or stiffening objects
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F15/00—Connecting wire to wire or other metallic material or objects; Connecting parts by means of wire
    • B21F15/10—Connecting wire to wire or other metallic material or objects; Connecting parts by means of wire wire with sheet metal
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2225/00—Reinforcing means
    • F28F2225/06—Reinforcing means for fins

Definitions

  • the invention relates to fins for heat exchangers with one or more rows of openings, through which the tubes of the heat exchanger extend (flat fins) or corrugated fins between the heat exchanger tubes are arranged, optionally with lamella cuts, for Increase in heat exchange as well as with folded edge, which has a free cross section in itself includes.
  • a manufacturing method for such ribs is also described.
  • Such ribs are known from US Pat. No. 1,752,879 and US Pat. No. 4,592,420, the so-called Flat ribs are and otherwise have the features described.
  • the opposite Longitudinal edges have not - like with other solutions - been folded over and pressed together, instead, as described, they enclose a free cross section, which is in the mentioned publications has approximately the shape of a drop.
  • This edge training contributes to this in that the incoming cooling air jets are swirled more intensely and the efficiency of the heat exchange lift. It should also be associated with better rib stability.
  • the material of the ribs e.g.
  • corrugated ribs are known, which are arranged between the heat exchanger tubes and are usually connected to these tubes by means of soldering.
  • corrugated ribs it is known that the opposite ones Fold the longitudinal edges to give the corrugated fin greater stability.
  • the object of the invention is to provide the ribs described in the preamble improve that the rib stability is further increased (for flat and corrugated ribs) and the deviations caused by the stretch remain in a negligible range, which should simplify the insertion of the heat exchanger tubes. (for flat fins) Manufacturing process should be characterized by simplicity and low cost.
  • Wire is arranged in the free cross section of the folded edges.
  • the wire is, for example, a copper wire if the rib is made of copper sheet
  • the wire does not necessarily have to be made of the same metallic material as the rib, however, because of possible corrosion, it is advantageous if the same materials be used.
  • the cross section of the wire is preferably round and the free cross section the edge is adapted to this round shape in order to preferably completely absorb the wire.
  • One embodiment is characterized in that the wire cross section predominantly is enclosed by the edge. This has the advantage that with the same stability a narrower sheet metal strip can be used. Because such ribs are mass-produced acts, even seemingly small savings can lead to a significant effect.
  • any other cross-sectional shape of the wire for example a quadrangular or polygonal wire, fulfills this same purpose.
  • the length of the wire preferably extends over the entire length of the Rib.
  • the diameter of the wire is preferably in the range between 0.2 to 0.5 mm.
  • ribs The production of such ribs is very simple and can be done with minor changes on existing rib tools or on devices for rib production.
  • the wire now causes the band to stretch and the resulting deviation is significantly smaller because of the wire or the two wires on the opposite edges of the rib, set the stretch of the rib a substantial resistance.
  • the individual openings are in a stack of ribs aligned with higher accuracy than before in a straight line, so that the introduction of the Heat exchanger tubes much easier, with less effort and less quality problems, can be done.
  • the wire improves the stability of the entire rib due to the higher stiffness in the edge area, to an extent such as a slight increase the sheet thickness, associated with higher costs, could never be achieved.
  • only one edge of the rib can be formed with an enclosed wire his. In most cases, however, the two opposite longitudinal edges are the Rib have an enclosed wire.
  • the wire gives the corrugated fin greater stability.
  • Fig. 1 shows a rib tool 1, which is designed as a pair of rollers 2, the strip material 5 from the coil 4 in this case unwinds a thin copper sheet - and the coils 6 on which Copper wire 7 is 0.4mm thick.
  • the wire ends are between the roller sets 13 or between the two-sided edge hem to be produced by means of the roller sets 13 introduced and enclosed in the folded edges 3 by means of the roller sets 13.
  • Synchronous with the transport of the copper sheet strip 5 from the coil 4 the copper wire 7 is from his Coils 6 unwound by the pair of rollers 2 pulling the strip material 5 and the wire 7.
  • the rib tool 1 right away behind the rib tool 1 or still within the tool 1 after the ribs 10 are fully completed, the same, along with the enclosed wires 7 cut off by means of a cutting tool 14.
  • the wires 7 remain in the folded Edges 3 and stiffen the ribs 10 substantially. Furthermore, the strip material 5 is no longer so greatly stretched, whereby the accuracy of the distances 11 between the punched openings 12th the rib 10 has been increased.
  • the rib tool 1 is a pair of rollers 2 in this case with which, as is well known, the openings 12 and cuts 13 are made in the flat ribs 10 become. However, it could also be a rib tool 1 for producing corrugated ribs. A corrugated fin 10 was therefore drawn symbolically at the left end of FIG. 1.
  • the rib tool 1 is a punching tool. It goes without saying that in this case jacking rollers must also be provided.
  • Fig. 2 shows an example of six different configurations of flat ribs 10, which are differ mainly in the arrangement of the openings 12.
  • An education (above right) was provided with lamellar cuts 13.
  • lamellar cuts 13 In all of these and other versions not shown there may be a wire 7 in the opposite folded edges 3.
  • the section 3 -3 was drawn in the lower right figure of FIG. 2. Of course it could have been drawn in any of the other images.
  • FIG 3 shows details of the arrangement of the wire 7 according to section 3 - 3 in the edge 3 in two variants A and B.
  • the section 3-3 should only show the edge 3, in which the wire 7 is located. It is also understood here that both the edge 3 of a flat rib 10 and the edge of a Corrugated rib is meant.
  • the wire 7 is completely enclosed by the edge hem
  • the second variant B shows that it is also possible to narrow the edge hem form and the enclosure only over a predominant part of the circumference of the wire 7 to be provided.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Wire Processing (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)
EP99102936A 1999-02-13 1999-02-13 Rippe für Wärmetauscher Expired - Lifetime EP1028303B1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
ES99102936T ES2154499T3 (es) 1999-02-13 1999-02-13 Aleta para intercambiador de calor.
AT99102936T ATE199041T1 (de) 1999-02-13 1999-02-13 Rippe für wärmetauscher
EP99102936A EP1028303B1 (de) 1999-02-13 1999-02-13 Rippe für Wärmetauscher
DE59900039T DE59900039D1 (de) 1999-02-13 1999-02-13 Rippe für Wärmetauscher

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP99102936A EP1028303B1 (de) 1999-02-13 1999-02-13 Rippe für Wärmetauscher

Publications (2)

Publication Number Publication Date
EP1028303A1 EP1028303A1 (de) 2000-08-16
EP1028303B1 true EP1028303B1 (de) 2001-01-31

Family

ID=8237556

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99102936A Expired - Lifetime EP1028303B1 (de) 1999-02-13 1999-02-13 Rippe für Wärmetauscher

Country Status (4)

Country Link
EP (1) EP1028303B1 (es)
AT (1) ATE199041T1 (es)
DE (1) DE59900039D1 (es)
ES (1) ES2154499T3 (es)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1672305A1 (de) 2004-12-17 2006-06-21 Modine Manufacturing Company Wärmetauschrippe und Wärmetauscher

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008031612A1 (de) * 2008-07-07 2010-01-14 Behr Gmbh & Co. Kg Wellrippe für einen Wärmeübertrager, Wärmeübertrager, Verfahren zur Herstellung einer Wellrippe und Vorrichtung zur Durchführung des Verfahrens
IT201900011568A1 (it) * 2019-07-12 2021-01-12 Air Hex Alonte S R L Aletta a resistenza migliorata e relativa batteria di scambio termico.

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1752879A (en) 1928-09-15 1930-04-01 American Blower Corp Radiator
GB523168A (en) * 1938-12-24 1940-07-08 Serck Radiators Ltd Improvements in gilled-tube heat-exchangers and particularly motor-vehicle radiators
GB2088035B (en) * 1980-10-22 1984-05-31 Serck Industries Ltd Finned-tube heat exchanger
JPS6018240A (ja) * 1983-07-11 1985-01-30 Mitsubishi Heavy Ind Ltd 熱交換器用針状フインの製造方法
US4592420A (en) * 1985-06-27 1986-06-03 Modine Manufacturing Company Reinforced plate fin heat exchanger
DE4142019A1 (de) 1991-12-19 1993-06-24 Behr Gmbh & Co Wellrippe fuer flachrohrwaermetauscher

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1672305A1 (de) 2004-12-17 2006-06-21 Modine Manufacturing Company Wärmetauschrippe und Wärmetauscher

Also Published As

Publication number Publication date
EP1028303A1 (de) 2000-08-16
ES2154499T3 (es) 2001-04-01
DE59900039D1 (de) 2001-03-08
ATE199041T1 (de) 2001-02-15

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