EP0906796A1 - Verfahren zur Herstellung eines Wärmetauschers - Google Patents

Verfahren zur Herstellung eines Wärmetauschers Download PDF

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Publication number
EP0906796A1
EP0906796A1 EP97203020A EP97203020A EP0906796A1 EP 0906796 A1 EP0906796 A1 EP 0906796A1 EP 97203020 A EP97203020 A EP 97203020A EP 97203020 A EP97203020 A EP 97203020A EP 0906796 A1 EP0906796 A1 EP 0906796A1
Authority
EP
European Patent Office
Prior art keywords
plate
tubes
process according
extrusion
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.)
Withdrawn
Application number
EP97203020A
Other languages
English (en)
French (fr)
Inventor
Ed Morley
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.)
Norsk Hydro ASA
Original Assignee
Norsk Hydro ASA
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 Norsk Hydro ASA filed Critical Norsk Hydro ASA
Priority to EP97203020A priority Critical patent/EP0906796A1/de
Publication of EP0906796A1 publication Critical patent/EP0906796A1/de
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • B21C37/151—Making tubes with multiple passages
    • 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
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/02—Making uncoated products
    • B21C23/04—Making uncoated products by direct extrusion
    • B21C23/14—Making other products
    • B21C23/142—Making profiles
    • 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
    • B21C35/00—Removing work or waste from extruding presses; Drawing-off extruded work; Cleaning dies, ducts, containers, or mandrels for metal extruding
    • B21C35/02—Removing or drawing-off work
    • B21C35/023—Work treatment directly following extrusion, e.g. further deformation or surface treatment 
    • 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
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/0008—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one medium being in heat conductive contact with the conduits for the other medium
    • 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
    • F28F1/14—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 longitudinally
    • F28F1/22—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 longitudinally 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
    • F28F2255/00—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes
    • F28F2255/16—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes extruded

Definitions

  • the invention relates to a process for making a heat exchanger unit comprising a number of parallel tubes enclosing channels for one of the heat exchanging fluidums and a heat conductive plate, the tubes being integrated in the plate.
  • German patent application 3023256 there is disclosed a heat exchanger unit of the type having a number of parallel tubes enclosing channels for one of the heat exchanging fluidums and a heat conductive plate.
  • such a heat exchanger unit can be made by connecting a tube and plate sections together by any suitable means, such as soldening, welding, etc. .
  • any suitable means such as soldening, welding, etc.
  • connecting techniques are expensive and cumbersome and do not provide satisfactory heat transfer contact areas as many defects, such as air inclusions, oxide layers and the like may occur in the contact surfaces.
  • the heat exchanger unit is obtained producing a metal block, in which a number of bores are drilled. These bores or holes are filled with a weld stop means (Schweisstoppsch). Thereupon the metal block is stretched or rolled in the longitudinal direction of the bores whereupon the collapsed or compressly bores are blown up.
  • a weld stop means Schoppestoppsch
  • This object has been obtained in that the unit is obtained by extruding a suitable metal whereby the plate and tubes are formed in one step.
  • Fig. 1 there is shown schematically a cross-section of an extrusion product such as it can be made according to the invention.
  • the product consists of a plate-shaped profile 1, which is bent in a nearly complete circular shape in such a way that it presents two ends 2 and 3.
  • the diameter of the circular plate 1 is at most equal to the diameter of the metal billet such as an aluminium or aluminum alloy billet, used as starting material for the extrusion process.
  • the reason therefor is that it is undesirable to use extrusion processes for products which after extrusion have a cross-section extending outside the cross-section of the billet.
  • the reason therefor is that this leads to very extreme pressure differences over the cross-section of the extruded products and therefor to important irregularities in the product. This can also result in problems with metal flow and dimensional tolerance control.
  • Such product may be very useful as a heat exchanger component in which the tubes 4 are used as a transport means for one of the heat exchanging fluidums the other fluidum flowing outside of said tubes 4.
  • FIG. 3 there are shown several products which can be obtained by means of the process according to the invention.
  • Fig. 2 there is shown a product comprising a flat plate with D-shaped tubes extending on one side from the plate.
  • Fig. 3 A it is possible to have round tubes extending both sides of the plate 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Extrusion Of Metal (AREA)
EP97203020A 1997-10-01 1997-10-01 Verfahren zur Herstellung eines Wärmetauschers Withdrawn EP0906796A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP97203020A EP0906796A1 (de) 1997-10-01 1997-10-01 Verfahren zur Herstellung eines Wärmetauschers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP97203020A EP0906796A1 (de) 1997-10-01 1997-10-01 Verfahren zur Herstellung eines Wärmetauschers

Publications (1)

Publication Number Publication Date
EP0906796A1 true EP0906796A1 (de) 1999-04-07

Family

ID=8228777

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97203020A Withdrawn EP0906796A1 (de) 1997-10-01 1997-10-01 Verfahren zur Herstellung eines Wärmetauschers

Country Status (1)

Country Link
EP (1) EP0906796A1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004033947A1 (de) * 2002-09-20 2004-04-22 Erbslöh Aluminium Gmbh Wärmetauscher und verfahren zur herstellung eines wärmetauschers sowie stranggepresstes verbundprofil zur verwendung in einem solchen verfahren
WO2010134819A1 (en) * 2009-05-13 2010-11-25 Norsk Hydro Asa Heat exchanger in particular for solar applications
WO2016081051A1 (en) * 2014-11-17 2016-05-26 Exxonmobil Upstream Research Company Heat exchange mechanism for removing contaminants from a hydrocarbon vapor stream
CN115930633A (zh) * 2022-12-27 2023-04-07 哈尔滨工大金涛科技股份有限公司 一种高效换热的管排式中水换热器

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2716805A (en) * 1952-07-08 1955-09-06 Macdonald S Reed Extruding integrally stiffened panels
US3164898A (en) * 1960-08-09 1965-01-12 Guy F Kotrbaty Method of producing extruded shapes
US3333317A (en) * 1964-03-12 1967-08-01 Reynolds Metals Co Method for making a heat exchanger means
US4071934A (en) * 1975-10-17 1978-02-07 Brazeway, Inc. CFT Box fin
DE4340506A1 (de) * 1993-11-27 1995-06-01 Willy Schuler Gmbh & Co Kg Met Heiz- oder Kühleinrichtung

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2716805A (en) * 1952-07-08 1955-09-06 Macdonald S Reed Extruding integrally stiffened panels
US3164898A (en) * 1960-08-09 1965-01-12 Guy F Kotrbaty Method of producing extruded shapes
US3333317A (en) * 1964-03-12 1967-08-01 Reynolds Metals Co Method for making a heat exchanger means
US4071934A (en) * 1975-10-17 1978-02-07 Brazeway, Inc. CFT Box fin
DE4340506A1 (de) * 1993-11-27 1995-06-01 Willy Schuler Gmbh & Co Kg Met Heiz- oder Kühleinrichtung

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004033947A1 (de) * 2002-09-20 2004-04-22 Erbslöh Aluminium Gmbh Wärmetauscher und verfahren zur herstellung eines wärmetauschers sowie stranggepresstes verbundprofil zur verwendung in einem solchen verfahren
WO2010134819A1 (en) * 2009-05-13 2010-11-25 Norsk Hydro Asa Heat exchanger in particular for solar applications
WO2016081051A1 (en) * 2014-11-17 2016-05-26 Exxonmobil Upstream Research Company Heat exchange mechanism for removing contaminants from a hydrocarbon vapor stream
AU2015350515B2 (en) * 2014-11-17 2018-11-15 Exxonmobil Upstream Research Company Heat exchange mechanism for removing contaminants from a hydrocarbon vapor stream
US10281205B2 (en) 2014-11-17 2019-05-07 Exxonmobil Upstream Research Company Heat exchange mechanism for removing contaminants from a hydrocarbon vapor stream
US11543179B2 (en) 2014-11-17 2023-01-03 Exxonmobil Upstream Research Company Heat exchange mechanism for removing contaminants from a hydrocarbon vapor stream
CN115930633A (zh) * 2022-12-27 2023-04-07 哈尔滨工大金涛科技股份有限公司 一种高效换热的管排式中水换热器

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