EP0815972B1 - Verfahren zur Herstellung von Flachrohren zur Bildung von Wärmeträgerpaneelen und Presse zur Durchführung des Verfahrens - Google Patents

Verfahren zur Herstellung von Flachrohren zur Bildung von Wärmeträgerpaneelen und Presse zur Durchführung des Verfahrens Download PDF

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Publication number
EP0815972B1
EP0815972B1 EP97201937A EP97201937A EP0815972B1 EP 0815972 B1 EP0815972 B1 EP 0815972B1 EP 97201937 A EP97201937 A EP 97201937A EP 97201937 A EP97201937 A EP 97201937A EP 0815972 B1 EP0815972 B1 EP 0815972B1
Authority
EP
European Patent Office
Prior art keywords
rollers
section
tube
flat
heat transfer
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
EP97201937A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0815972A1 (de
Inventor
Heinrich Franz Wallnöfer
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0815972A1 publication Critical patent/EP0815972A1/de
Application granted granted Critical
Publication of EP0815972B1 publication Critical patent/EP0815972B1/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
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/02—Tubular elements of cross-section which is non-circular
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/155—Making tubes with non-circular section

Definitions

  • the present invention relates to a method for the production of flat tubes for the formation of heat transfer panels and according to the preamble of claim 1 Device for performing the method.
  • the pipes As much as possible to be flat.
  • the wall of the pipes should also be as thin as possible and the cross section of the tube as possible be flat so that the heat transfer gap can react as quickly as possible to be designed so that it heats up evenly or cooled.
  • the top and bottom rollers are those of both Press sides onto the tube, always identical.
  • Like this one Document shown in Figures 13 to 17 go their shapes from circular to oval and then to flat above, where the pipe to be formed is only pressed from above and from below and is never guided or held sideways; it is also noted that not on the corner sides of the tube is acted on.
  • the form gap is thus not completely encompassed by the peripheral surfaces and the pipe to be formed can be in the transition from the Bend or tear out the circular shape to form a flat shape.
  • the peripheral surfaces of the two work rolls too symmetrical to each other and therefore cannot have a flat shape a flat cross section asymmetrical to one of the axes form.
  • the object of the present invention is that to solve problems shown so far and a process propose by which it should be possible with great simplicity a flat tube for panels as far as possible even and with the smallest possible Get opening for the flow of the liquid.
  • the process according to the invention primarily requires gradual Profiling a circular tube using several rolling stations, the tube on one any, desired, than that for use in solar panels brought as the most suitable form becomes.
  • the tube passes through two during its forming Roller wheels, one of which e.g. the lower, side flanges has that the pipe to be rolled always from Hold the new side together so that the pipe is on the side cannot and cannot break out sharply (sharp-edged) tears, but has rounded edges. Because namely the tube is not laterally compressed vertically held, but has the freedom to break out, so it suddenly kinks at a certain pressure level and throws a sharp edge.
  • printing is designed to keep its shape axially and centrally at the bottom of the channel one bead, with wider tubes also two beads, if Smaller beads or lighter profiles are also necessary indented on the top.
  • the profile of the tube a double-sided bulge in such a way that there is a Gap of about 0.5 mm inside the axis and a higher one Gap, about 2 mm near the long sides of the tube itself.
  • the flat tube has bulges on the two parallel or almost parallel to each other Pages on, i.e. a bulge on one Side and a bulge on the other side.
  • a bulge on one Side i.e. a bulge on one Side
  • a bulge on the other side i.e. a bulge on the other side.
  • the circular tube can be opened its inner surface in the longitudinal direction or only on the Have grooves on the outer surface or on both sides.
  • a rolling mill which consists of a Scaffold 1 with two supports 2 parallel to each other.
  • the rollers 4 and 6 form roller pairs 7, 8, 9, 10, wherein even a single pair of rollers could be present or also more than four pieces.
  • the axes of the shafts 3, 5 of each pair of 7 to 10 are horizontal to each other parallel, in a common, vertical plane.
  • Each pair of rollers 7, 8, 9 and 10 is like that assigned to another pair that a rolling mill is formed.
  • the profiles of the peripheral surface of the rollers 4 and 6 one each pair of rolls depends on the dimension of one to be rolled Round tube 11 and the profile of the end channel with flattened form 13, which one wishes to obtain.
  • the rollers of the intermediate roller pairs, in the present Case, those 8 and 9 must have such peripheral surfaces have that by the through the mentioned Profiles formed a gradual gap without forming excessive stress takes place on the pipe whose passage according to arrow 12 through the between the profiles of the end faces of the rollers 3 and 5 formed Gap is practiced.
  • the rolling mill can be any number of Roller pairs depending on the material to be rolled and the Desired deformation may include, being from a Round tube is assumed that smooth inside or outside can be grooved on one side.
  • the drive of the rollers itself can be arbitrary, for example only one could only one of each pair of rollers are driven, or it could be any other known drive system and not shown apply to the pipe by pulling through between each of the reels To drive the pair of rollers formed gap.
  • Flat tubes can be used for a collector absorber or a Heat exchanger wall with a mutual side distance from 0 to 15 cm (so-called rib absorbers).
  • the Lateral connection of the channels can be made using aluminum or Made of copper sheet, the good with the flat tubes Have thermal contact.
  • the inner grooves create a turbulent Passage of the heating element, as well as a capillary effect and thereby reinforcing and accelerating the heat exchanger.

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)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Catalysts (AREA)
  • Duct Arrangements (AREA)
  • Rollers For Roller Conveyors For Transfer (AREA)
  • Tunnel Furnaces (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Heat Treatment Of Articles (AREA)
EP97201937A 1996-06-26 1997-06-24 Verfahren zur Herstellung von Flachrohren zur Bildung von Wärmeträgerpaneelen und Presse zur Durchführung des Verfahrens Expired - Lifetime EP0815972B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT96BZ000032A IT1293570B1 (it) 1996-06-26 1996-06-26 Procedimento per la realizzazione di condotti per la formazione di pannelli conducenti veicoli di calore, pressa per l'attuazione del
ITBZ960032 1996-06-26

Publications (2)

Publication Number Publication Date
EP0815972A1 EP0815972A1 (de) 1998-01-07
EP0815972B1 true EP0815972B1 (de) 2002-10-30

Family

ID=11346756

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97201937A Expired - Lifetime EP0815972B1 (de) 1996-06-26 1997-06-24 Verfahren zur Herstellung von Flachrohren zur Bildung von Wärmeträgerpaneelen und Presse zur Durchführung des Verfahrens

Country Status (5)

Country Link
EP (1) EP0815972B1 (enrdf_load_stackoverflow)
AT (1) ATE226855T1 (enrdf_load_stackoverflow)
DE (1) DE59708600D1 (enrdf_load_stackoverflow)
ES (1) ES2185864T3 (enrdf_load_stackoverflow)
IT (1) IT1293570B1 (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010019241A1 (de) * 2010-05-03 2011-11-03 Benteler Automobiltechnik Gmbh Verfahren zur Herstellung eines Wärmetauscherrohres und Wärmetauscher

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010092031A2 (en) 2009-02-11 2010-08-19 Basf Se Pesticidal mixtures
WO2010092028A2 (en) 2009-02-11 2010-08-19 Basf Se Pesticidal mixtures
CN107775950A (zh) * 2016-08-30 2018-03-09 上海长园电子材料有限公司 一种牵引装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2442850A (en) * 1943-12-20 1948-06-08 Revere Copper & Brass Inc Method of and apparatus for making flat metal tubes
GB933288A (en) * 1961-03-30 1963-08-08 British Insulated Callenders Improvements in or relating to large diameter thin-walled metal tubing and its transportation
AT368722B (de) * 1980-10-29 1982-11-10 Sonderbau Gmbh Verfahren zur herstellung eines huellrohres fuer spannglieder von bewehrten betonbauteilen
US5099576A (en) * 1989-08-29 1992-03-31 Sanden Corporation Heat exchanger and method for manufacturing the heat exchanger

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010019241A1 (de) * 2010-05-03 2011-11-03 Benteler Automobiltechnik Gmbh Verfahren zur Herstellung eines Wärmetauscherrohres und Wärmetauscher

Also Published As

Publication number Publication date
ATE226855T1 (de) 2002-11-15
IT1293570B1 (it) 1999-03-08
EP0815972A1 (de) 1998-01-07
ITBZ960032A1 (it) 1997-12-26
DE59708600D1 (de) 2002-12-05
ES2185864T3 (es) 2003-05-01
ITBZ960032A0 (enrdf_load_stackoverflow) 1996-06-26

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