WO2003016812A1 - Echangeur de chaleur et son procede de fabrication - Google Patents

Echangeur de chaleur et son procede de fabrication Download PDF

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Publication number
WO2003016812A1
WO2003016812A1 PCT/EP2001/009401 EP0109401W WO03016812A1 WO 2003016812 A1 WO2003016812 A1 WO 2003016812A1 EP 0109401 W EP0109401 W EP 0109401W WO 03016812 A1 WO03016812 A1 WO 03016812A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat
fluids
tubular sections
heat exchange
heat exchanger
Prior art date
Application number
PCT/EP2001/009401
Other languages
English (en)
Inventor
Leif Petersen
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 PCT/EP2001/009401 priority Critical patent/WO2003016812A1/fr
Publication of WO2003016812A1 publication Critical patent/WO2003016812A1/fr

Links

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
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/0202—Header boxes having their inner space divided by partitions
    • F28F9/0204—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions
    • F28F9/0214—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions having only longitudinal partitions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B23P15/26—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass heat exchangers or the like
    • 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
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/0408—Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids
    • F28D1/0426—Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids with units having particular arrangement relative to the large body of fluid, e.g. with interleaved units or with adjacent heat exchange units in common air flow or with units extending at an angle to each other or with units arranged around a central element
    • F28D1/0435—Combination of units extending one behind the other
    • 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
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
    • F28D1/0535—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight the conduits having a non-circular cross-section
    • 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
    • F28F1/022—Tubular elements of cross-section which is non-circular with multiple channels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F2009/0285—Other particular headers or end plates
    • F28F2009/0287—Other particular headers or end plates having passages for different heat exchange media
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2210/00—Heat exchange conduits
    • F28F2210/04—Arrangements of conduits common to different heat exchange sections, the conduits having channels for different circuits

Definitions

  • the present invention concerns a heat exchanger compris- ing means for heat exchange, means for feeding a fluid to said means for heat exchange and means for collecting said fluid after heat exchange.
  • Heat exchangers are commonly used in many technical fields, where heat from one fluid is transferred to a second fluid, and where the fluids are separated e.g. in order to avoid contact and mixing/pollution of the fluids.
  • the purpose of transferring the heat can e.g. be heat recovery in order to save energy, for temperature control, for cooling, for pre-heating etc.
  • Known heat exchangers are connected to a closed circuit, where only one fluid is circulated, and to e.g. free air for cooling or to a second circuit, where also only one second fluid is circulated.
  • the purpose of the known heat exchangers are to provide their effect for one technical function only. Since different technical functions by nature make use of different fluids, which for obvious reasons may not be mixed, one separate heat exchanger is used for each technical function. Hence a heat exchanger is needed for each technical function. In case of e.g. machinery where more heat exchangers are used, this does not only mean that a lot of space is required, it is also costly.
  • An object of the present invention is to provide a heat exchanger for two or more fluids, thereby being suitable for two or more technical functions. Another object is to provide a multiple heat exchanger, which is compact and space saving compared to using more separate heat ex- changers of the known types. A further object is to provide a heat exchanger, which may be manufactured at a reduced cost. A still further object is to provide a manufacturing method for a heat exchanger, where machining, assembling and handling time is considerably reduced, which further leads to reducing cost.
  • the heat exchanger comprises heat exchanging means for two or more fluids, where: a) the heat exchanging means comprise parallel tubular sections, which are at least partly connected, and where at least one tubular section is used for each fluid, b) and/or where means for feeding fluids to the means for heat exchange and/or means for collecting fluids after heat exchange comprise parallel tubular sections, which are at least partly connected, and where at least one tubular section is used for each fluid.
  • the heat exchanger comprises means for heat exchange, which means comprise parallel tubular sections that are connected and thereby suited to be manufactured by extrusion as a single piece. As at least one tubular section is used for each fluid, the fluids are kept separate and may be used for different technical functions . Since the heat exchanging means for more fluids are combined into a single piece, handling is less complicated and time consuming compared to handling more items. Also a more compact design is obtained. Further, energy saving effects may be exploited by e.g. using excess heat in one fluid to warm a second fluid. Such effects may be taken into account when designing the heat exchanger and choosing the succession of the fluids, i.e. which is neighbour to which.
  • the invention also means for feeding fluids to the means for heat ex- change and/or means for collecting fluids after heat exchange may be manufactured in the same way leading to the same above mentioned advantages. And even further that the heat exchanging means, the means for feeding fluids to the means for heat exchange and the means for collecting fluids after heat exchange all may be manufactured in the same way, thereby to great extent exploiting the advantages of the invention.
  • the at least partial connection between the tubular sections may be chosen according to the extent as to whether or not heat transfer between the tubular sections and thereby between the fluids are desired.
  • the at least partial connection between the tubular sections may further be utilised to achieve sufficient strength and stiffness for handling and machining the tubular sections as just one single piece.
  • the distance between the parallel tubular sections may be relatively close to enable transfer of heat between the fluids. At close distance the amount of transferred radi- ated heat is higher as well as heat transmission through the at least partial connections are improved.
  • the distance between the parallel tubular sections may on the other hand also be chosen as relatively wide to re- strict transfer of heat between the fluids.
  • insulation and/or heat reflecting material may be placed between the parallel tubular sections to restrict transfer of heat between the fluids.
  • the fluids may be used in individual functions of a transport vehicle, which functions may comprise any two or more of the following: a) engine cooling b) air condition c) cabin heating d) power steering e) braking f) fuel injection g) temperature regulation of fuel h) operation of auxiliary equipment
  • Heat exchangers for two or more of these may advantageously be replaced with one single, multiple heat exchanger according to the invention, whereby compact design and reduced manufacturing costs are facilitated.
  • a preferred manufacturing method for the heat exchanger according to the invention comprises that the means for heat exchange comprise at least two parallel tubular sections connected by at least one wall section, which tubular sections and at least one wall section are manufactured by simultaneous extrusion, whereby a relative low cost is achieved and whereby freedom of design is maintained to a large extent.
  • Another embodiment comprises that the means for feeding fluids to the means for heat exchange and/or the means for collecting fluids after heat exchange comprise at least two parallel and tubular sections connected by at least one wall section, which tubular sections and at least one wall section are manufactured by simultaneous extrusion, whereby the same advantages as mentioned above are obtained.
  • a further embodiment comprises that the heat exchanging means comprise parallel and at least partly connected tubular sections, and the means for feeding fluids to the means for heat exchange and/or the means for collecting fluids after heat exchange comprise parallel and at least partly connected tubular sections, which tubular sections are assembled to a common arrangement and joined.
  • the means for feeding fluids to the means for heat exchange and/or the means for collecting fluids after heat exchange comprise parallel and at least partly connected tubular sections, which tubular sections are assembled to a common arrangement and joined.
  • the common arrangement is joined by brazing, although other methods such as welding, gluing etc. also may be used.
  • Fig. 1 shows tubular sections for heat exchange seen in an end view.
  • Fig. 2 shows tubular sections for feeding and/or collecting fluids seen in an end view.
  • FIG. 3 shows a top view of a common arrangement of tubular sections for heat exchange assembled with tubular sections for feeding and collecting fluids.
  • Fig. 4 shows a sectional view along the line A-A shown in fig. 3.
  • FIG. 5 shows the same sectional view as fig. 4, but seen at an angle from the side and above.
  • FIG. 1 On fig. 1 is shown three tubular sections 8.1, 8.2 and 8.3 connected by two wall sections 11.1 and 11.2.
  • the tubular sections 8.1, 8.2 and 8.3 are used to convey fluids and as means for heat exchange, where heat is transferred either from the fluids via the tubular sections 8.1, 8.2 and 8.3 to an ambient fluid or fluids or the opposite way.
  • the tubular sections 8.1, 8.2 and 8.3 may have any suitable cross section, e.g. circular, oval, square, etc. including internal/external fins and/or internal wall sections.
  • Fig. 1 shows the tubular section 8.1 as a flat tube with a number of wall sections for enhanced heat transfer.
  • the tubular sections 8.2 and 8.3 are flat tubes with circular hollows, which is another design intended to enhance heat transfer.
  • the wall sections 11.1 and 11.2 are relatively thin in this case, in order to restrict heat transfer between the tubular sections 8.1, 8.2 and 8.3. They are designed to have adequate strength and stiffness, so that the tubular sections 8.1, 8.2 and 8.3 may be handled as one single piece.
  • Fig. 2 shows three tubular sections 10.1, 10.2 and 10.3 connected by two wall sections 12.1 and 12.2.
  • the tubular sections 10.1, 10.2 and 10.3 are used to feed fluids to and/or to collect fluids from means for heat exchange. This is done via connections through not shown machined transverse cut-outs.
  • the tubular sections 10.1, 10.2 and 10.3 may have any suitable cross section, e.g. circular, oval, square, etc. including internal/external fins and/or internal wall sections.
  • the wall sections 12.1 and 12.2 are designed to have adequate strength and stiffness, so that the tubular sections 10.1, 10.2 and 10.3 may be handled as one single piece.
  • the tubular sections 8 and 10 including the wall sections 11 and 12 are manufactured by simultaneous extrusion. Of course, other manufacturing methods may be used according to circumstances. After extrusion the tubular section 8,10 are cut to desired length and necessary machining applied.
  • Fig. 3 shows an assembled common arrangement 14 comprising means for feeding fluids 4 to means for heat exchange 2 and means for collecting fluids 6 from the means for heat exchange 2. Fluids for different technical functions are circulated through the means for feeding fluids 4 to the means for heat exchange 2 and further to the means for collecting fluids 6. The means for heat exchange 2 are exposed to the ambient air or a fluid/fluids in order to transfer heat to or from the circulated fluids.
  • the means for feeding fluids 4 comprise tubular sections 10 connected by wall sections 12.
  • the means for heat exchange comprise tubular sections 8 connected by wall sections 11.
  • the wall sections 11 comprise cut-outs 16, where portions of the wall sections 11 have been removed to restrict heat transfer between the tubular sections 8.
  • the tubular sections 10 comprise not shown transverse cut-outs, in which the tubular sections 8 are inserted. Following, the tubular sections 8 and 10 are brazed, welded or glued together to form tight connections between the parts. The remaining parts that are necessary to make a complete heat exchanger are not displayed, since these, as well as how to do it, are well known to the person skilled in the art.
  • On fig. 4 and 5 two sets of tubular sections 8 are shown, which are stacked and connected transversely to tubular sections 10. The actual number of sets of tubular sections 8 are determined by e.g.
  • the tubular sections 8,10 may be made of aluminium, tita- nium, steel alloy, brass, plastic or any other suitable material. In a preferred embodiment the tubular sections are manufactured by extrusion, but may according to circumstances be made by any other suitable manufacturing method.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

L'invention concerne un échangeur de chaleur doté de moyens échangeurs de chaleur pour au moins deux liquides, ainsi que son procédé de fabrication. Dans ledit échangeur : a) les moyens échangeurs (2) comprennent des sections tubulaires parallèles (8) qui sont au moins partiellement reliées et dont au moins une (8) est utilisée pour chaque liquide ; b) et/ou les moyens alimentant en liquides (4) les moyens échangeurs de chaleur (2) et/ou les moyens de collecte (6) de liquides après l'échange de chaleur, comprennent des sections tubulaires parallèles (10) qui sont au moins partiellement reliées, au moins une section tubulaire (10) étant utilisée pour chaque liquide. Ainsi, on produit un échangeur de chaleur compact et tenant peu de place, possédant au moins deux fonctions techniques. L'invention concerne également un procédé de fabrication dans lequel les temps d'usinage, de montage, de manutention, et donc les coûts, sont réduits.
PCT/EP2001/009401 2001-08-13 2001-08-13 Echangeur de chaleur et son procede de fabrication WO2003016812A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EP2001/009401 WO2003016812A1 (fr) 2001-08-13 2001-08-13 Echangeur de chaleur et son procede de fabrication

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2001/009401 WO2003016812A1 (fr) 2001-08-13 2001-08-13 Echangeur de chaleur et son procede de fabrication

Publications (1)

Publication Number Publication Date
WO2003016812A1 true WO2003016812A1 (fr) 2003-02-27

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Country Link
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006108431A1 (fr) * 2005-04-11 2006-10-19 Norsk Hydro Asa Echangeur thermique comprenant un produit extrude
EP3418667A1 (fr) * 2017-06-21 2018-12-26 Modine Manufacturing Company Échangeur de chaleur et son collecteur
CN109099752A (zh) * 2016-06-23 2018-12-28 摩丁制造公司 热交换器以及用于热交换器的集管
IT201800007448A1 (it) * 2018-07-23 2020-01-23 Scambiatore di calore
WO2023095182A3 (fr) * 2021-11-25 2023-07-27 Thermokey S.P.A. Échangeur de chaleur

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS611994A (ja) * 1984-06-13 1986-01-07 Mitsubishi Heavy Ind Ltd 偏平熱交換管の製造方法
US5174373A (en) * 1990-07-13 1992-12-29 Sanden Corporation Heat exchanger
US5186244A (en) * 1992-04-08 1993-02-16 General Motors Corporation Tube design for integral radiator/condenser
US5186243A (en) * 1992-07-13 1993-02-16 General Motors Corporation Combination condenser and radiator tank thermal gap

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS611994A (ja) * 1984-06-13 1986-01-07 Mitsubishi Heavy Ind Ltd 偏平熱交換管の製造方法
US5174373A (en) * 1990-07-13 1992-12-29 Sanden Corporation Heat exchanger
US5186244A (en) * 1992-04-08 1993-02-16 General Motors Corporation Tube design for integral radiator/condenser
US5186243A (en) * 1992-07-13 1993-02-16 General Motors Corporation Combination condenser and radiator tank thermal gap

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 010, no. 146 (M - 482) 28 May 1986 (1986-05-28) *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006108431A1 (fr) * 2005-04-11 2006-10-19 Norsk Hydro Asa Echangeur thermique comprenant un produit extrude
CN109099752A (zh) * 2016-06-23 2018-12-28 摩丁制造公司 热交换器以及用于热交换器的集管
EP3418667A1 (fr) * 2017-06-21 2018-12-26 Modine Manufacturing Company Échangeur de chaleur et son collecteur
IT201800007448A1 (it) * 2018-07-23 2020-01-23 Scambiatore di calore
WO2023095182A3 (fr) * 2021-11-25 2023-07-27 Thermokey S.P.A. Échangeur de chaleur

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