EP4177557B1 - Dispositif de transfert de chaleur - Google Patents

Dispositif de transfert de chaleur Download PDF

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Publication number
EP4177557B1
EP4177557B1 EP22204727.6A EP22204727A EP4177557B1 EP 4177557 B1 EP4177557 B1 EP 4177557B1 EP 22204727 A EP22204727 A EP 22204727A EP 4177557 B1 EP4177557 B1 EP 4177557B1
Authority
EP
European Patent Office
Prior art keywords
heat transfer
fluid
flow
transfer apparatus
distribution
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.)
Active
Application number
EP22204727.6A
Other languages
German (de)
English (en)
Other versions
EP4177557A1 (fr
EP4177557C0 (fr
Inventor
Ulrich Hafner
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.)
Viessmann Climate Solutions SE
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Viessmann Climate Solutions SE
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Filing date
Publication date
Application filed by Viessmann Climate Solutions SE filed Critical Viessmann Climate Solutions SE
Publication of EP4177557A1 publication Critical patent/EP4177557A1/fr
Application granted granted Critical
Publication of EP4177557B1 publication Critical patent/EP4177557B1/fr
Publication of EP4177557C0 publication Critical patent/EP4177557C0/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
    • F28F9/0278—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits in the form of stacked distribution plates or perforated plates arranged over end plates
    • 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
    • F28D7/16—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 being arranged in parallel spaced relation
    • F28D7/1684—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 being arranged in parallel spaced relation 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
    • 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
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/02—Tubular elements of cross-section which is non-circular
    • F28F1/04—Tubular elements of cross-section which is non-circular polygonal, e.g. rectangular
    • 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
    • F28F1/16—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 being integral with the element, e.g. formed by extrusion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
    • F28F21/081—Heat exchange elements made from metals or metal alloys
    • F28F21/084—Heat exchange elements made from metals or metal alloys from aluminium or aluminium alloys
    • 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
    • F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
    • F28F9/027—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits in the form of distribution pipes
    • F28F9/0275—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits in the form of distribution pipes with multiple branch pipes
    • 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
    • F28F9/04—Arrangements for sealing elements into header boxes or end plates
    • F28F9/16—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling
    • F28F9/18—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by welding
    • 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
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0061—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for phase-change applications
    • 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
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0068—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for refrigerant cycles
    • 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
    • F28F2009/0297—Side headers, e.g. for radiators having conduits laterally connected to common header
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2275/00—Fastening; Joining
    • F28F2275/04—Fastening; Joining by brazing

Definitions

  • the invention relates to a heat transfer device according to the preamble of patent claim 1.
  • a heat transfer device of the type mentioned at the beginning is generally known (see, for example, https://www.zpm-systeme.de/wp-content/uploads/2017/04/ istsan effettechnisch_waerme insulter_manual_heat_exchangers.pdf - page 13 there).
  • Such a heat transfer device consists of a first flow guide for a first fluid and a second flow guide for a second fluid, which is in heat-transferring contact with the first, wherein the first flow guide has a plurality of line sections arranged parallel to one another and conducting the first fluid vertically, wherein the second flow guide has a space bypassing the line sections and conducting the second fluid vertically, wherein a first distribution device is provided for supplying the first fluid to the line sections and a second distribution device is provided for discharging the first fluid from the line sections.
  • the term "fluid” is to be understood here and also below as a medium that is either gaseous or liquid. In the above solution, both fluids are liquid.
  • a heat transfer device according to the preamble of claim 1 is known from the document US 4 235 281 A known.
  • the invention is based on the object of improving a heat transfer device of the type mentioned at the beginning.
  • the aim is to create a heat transfer device that is both particularly efficient in terms of thermal technology and easy to manufacture.
  • the line sections have a rectangular internal flow cross-section.
  • the solution according to the invention is characterized, as will be explained in more detail below, by the fact that the cross-section through which both fluids flow is optimally utilized.
  • the heat transfer device shown in the figures consists, in a known manner, of a first flow guide 1 for a first fluid and a second flow guide 2 for a second fluid, which is in heat-transferring contact with the first, wherein the first flow guide 1 has a plurality of line sections 1.1 arranged parallel to one another and conducting the first fluid vertically, wherein the second flow guide 2 has a space 2.1 bypassing the line sections 1.1 and conducting the second fluid vertically, wherein a first distribution device 3.1 is provided for supplying the first fluid to the line sections 1.1 and a second distribution device 3.2 is provided for discharging the first fluid from the line sections 1.1, wherein a plurality of flow openings 3.3 for the second fluid, connected to the space 2.1, are provided on the two distribution devices 3.1, 3.2.
  • the pipe sections 1.1 have a rectangular internal flow cross-section.
  • rectangular flow cross-section of the pipe sections 1.1 preferably transverse ribs 1.1.2 are arranged, see Figure 3 .
  • the distribution devices 3.1, 3.2 are designed to be many times, at least a factor of 4, shorter in the main flow direction of the second fluid than in the extension direction in a plane perpendicular to the main flow direction of the second fluid. It is also preferred that the distribution devices 3.1, 3.2 have a plurality of distribution channels 3.4 for the first fluid.
  • the throughflow openings 3.3 and the distribution channels 3.4 are preferably arranged alternately with one another. It is also preferred that the throughflow openings 3.3 and/or the distribution channels 3.4 are optionally arranged along the circumference of imaginary rectangles, in particular squares, arranged concentrically with one another.
  • the line sections 1.1 are designed to be pluggable for installation in the two distribution devices 3.1, 3.2, preferably their base body 3.5. It is also preferred that the line sections 1.1 are manufactured as extruded profiles. It is also preferred that the line sections 1.1 have preferably vertically extending heat transfer ribs 1.1.1 on a side facing the second flow guide 2, wherein the external cross section of the line sections 1.1 is preferably and fundamentally rectangular, i.e. without the heat transfer ribs 1.1.1 - as are the internal flow cross sections.
  • the first distribution device 3.1 is arranged, when the heat transfer device is used as intended, either below the second distribution device 3.2 when used as an evaporator in heating mode or above the second distribution device 3.2 when used as a condenser in cooling mode. It is also preferred that the first fluid is designed to flow in a first main flow direction through the line sections 1.1 and the second fluid is designed to flow in a second main flow direction opposite to the first through the conductive space 2.1. It is preferred that the heat transfer device has a first supply connection and a first discharge connection for the first fluid, through which the first fluid is supplied to the first distribution device 3.1 perpendicular to the first main flow direction or from the second distribution device 3.2 is discharged. In addition, it is preferred that the heat transfer device has a second supply connection and a second discharge connection for the second fluid, through which the second fluid is supplied to or discharged from the second flow guide 2 parallel to the second main flow direction.
  • the first fluid is either completely liquid or a mixture of liquid and gas. It is preferred that the first fluid is a coolant for a thermodynamic cycle. Furthermore, it is preferred that the second fluid is gaseous, preferably air.
  • the line sections 1.1 are soldered at both ends to a distribution device 3.1, 3.2 in the heating furnace.
  • the assembly of the heat transfer device can thus be carried out in a simple manner and without the need for a large number of personnel.
  • the line sections 1.1 and/or the distribution devices 3.1, 3.2 are optionally made of aluminum. This enables the heat transfer device to be manufactured cost-effectively and reduces its weight.
  • the heat transfer device is optionally designed as part of a condenser or as part of an evaporator.
  • a drain 4 for condensate or the like is provided at a lower end of the second flow guide 2 when used as intended.
  • a separating device 5 for gaseous components of the first fluid is connected upstream of the first distribution device 3.1, see Figure 1 .
  • the heat transfer device functions as follows: The heat transfer device is first, as in Figure 1 shown, aligned in a vertical direction. The first fluid is then introduced through the first supply connection into the first distribution device 3.1. There it is now deflected by 90° and guided upwards in the line sections 1.1. Finally, the first fluid enters the second distribution device 3.2, is again deflected by 90° and finally guided out of the heat transfer device through the first discharge connection. Simultaneously with this process, the second fluid is introduced through the second supply connection from above into the second flow guide 2. This straight-line guidance - without diversions - of the second fluid means that less turbulence occurs in it and thus there is also less associated pressure loss and less noise. It then flows from top to bottom through the space 2.1 and then leaves the heat transfer device again through the second discharge connection arranged on its underside.
  • the first and second fluids thus flow antiparallel or oppositely through the heat transfer device over a certain distance.
  • the second fluid flows from top to bottom through the space 2.1, it comes into contact with the heat transfer fins 1.1.1 of the line pieces 1.1. This causes heat to be transferred from the second fluid via these same heat transfer fins 1.1.1 to the first fluid in the line pieces 1.1 (or vice versa).
  • the (anti-) parallel routing of the two fluids creates a small difference in temperature between their respective temperatures, which leads to a high efficiency of the heat transfer device.
  • the vertical design of the heat transfer device prevents uneven distribution of the first fluid flow to the individual pipe sections 1.1 due to gravity and facilitates the removal of any condensate in the heat transfer device, both of which in turn increase the efficiency of the device.

Landscapes

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

Claims (11)

  1. Dispositif de transfert de chaleur, comprenant un premier guide d'écoulement (1) pour un premier fluide et un deuxième guide d'écoulement (2) se trouvant en contact thermoconducteur avec le premier pour un deuxième fluide, sachant que le premier guide d'écoulement (1) comporte une pluralité d'éléments conducteurs (1.1) disposés parallèlement les uns par rapport aux autres, dirigeant verticalement le premier fluide, sachant que le deuxième guide d'écoulement (2) comporte un espace (2.1) entourant les éléments conducteurs (1.1), dirigeant verticalement le deuxième fluide, sachant qu'un premier système de répartition (3.1) est prévu pour acheminer le premier fluide aux éléments conducteurs (1.1) et un deuxième système de répartition (3.2) pour évacuer le premier fluide des éléments conducteurs (1.1), sachant que sur les deux systèmes de répartition (3.1, 3.2) est respectivement prévue une pluralité d'ouvertures de passage (3.3) reliées à l'espace (2.1) pour le deuxième fluide, sachant que les systèmes de répartition (3.1, 3.2) sont constitués en forme de plateaux, sachant que le système de répartition (3.1, 3.2) comporte une pluralité de conduits de répartition (3.4) pour le premier fluide,
    caractérisé en ce que,
    les éléments conducteurs (1.1) comportent une section intérieure d'écoulement rectangulaire, sachant que le système de répartition (3.1, 3.2) est formé au moins d'un corps de base (3.5) limitant au moins de trois côtés les conduits de répartition (3.4) et un élément de couverture (3.6) limitant d'un côté les conduits de répartition (3.4).
  2. Dispositif de transfert de chaleur selon la revendication 1,
    caractérisé en ce que
    le système de répartition (3.1, 3.2) est constitué, vu dans la direction d'écoulement principale du deuxième fluide, d'un multiple plus court que dans la direction d'extension dans un plan perpendiculairement à la direction d'écoulement principale du deuxième fluide.
  3. Dispositif de transfert de chaleur selon la revendication 1 ou 2,
    caractérisé en ce que
    les ouvertures de passage (3.3) et les conduits de répartition (3.4) sont disposés en alternance les uns par rapport aux autres.
  4. Dispositif de transfert de chaleur selon l'une quelconque des revendications 1 à 3,
    caractérisé en ce que
    les ouvertures de passage (3.3) et/ou les conduits de répartition (3.4) sont disposés selon nécessité le long de la périphérie des rectangles, en particulier des quadrants, conçus, disposés de façon concentrique les uns par rapport aux autres.
  5. Dispositif de transfert de chaleur selon l'une quelconque des revendications 1 à 4,
    caractérisé en ce que
    chaque ouverture de passage (3.3) comporte au moins deux sections de parois (3.3.1, 3.3.2) passant parallèlement l'une par rapport à l'autre.
  6. Dispositif de transfert de chaleur selon l'une quelconque des revendications 1 à 5,
    caractérisé en ce que
    les éléments conducteurs (1.1) sont constitués pouvant être emboîtés pour le montage dans les deux systèmes de répartition (3.1, 3.2).
  7. Dispositif de transfert de chaleur selon l'une quelconque des revendications 1 à 6,
    caractérisé en ce que
    les éléments conducteurs (1.1) sont constitués fabriqués sous la forme de profilés extrudés.
  8. Dispositif de transfert de chaleur selon l'une quelconque des revendications 1 à 7,
    caractérisé en ce que
    les éléments conducteurs (1.1) comportent des nervures de transfert de chaleur (1.1.1) sur leur côté tourné vers le deuxième guide d'écoulement (2).
  9. Dispositif de transfert de chaleur selon l'une quelconque des revendications 1 à 8,
    caractérisé en ce que
    des nervures transversales (1.1.2) sont disposées à l'intérieur de la section intérieure d'écoulement rectangulaire des éléments conducteurs (1.1).
  10. Dispositif de transfert de chaleur selon l'une quelconque des revendications 1 à 9,
    caractérisé en ce que
    le premier système de répartition (3.1) est disposé pour une utilisation conforme du dispositif de transfert de chaleur, selon nécessité, en dessous ou au-dessus du deuxième système de répartition (3.2).
  11. Dispositif de transfert de chaleur selon l'une quelconque des revendications 1 à 10,
    caractérisé en ce que
    le premier fluide est constitué s'écoulant dans une première direction d'écoulement principale à travers les éléments conducteurs (1.1) et le deuxième fluide dans une deuxième direction d'écoulement principale opposée à la première à travers l'espace conducteur (2.1).
EP22204727.6A 2021-11-05 2022-10-31 Dispositif de transfert de chaleur Active EP4177557B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102021128819.3A DE102021128819A1 (de) 2021-11-05 2021-11-05 Wärmeübertragungsvorrichtung

Publications (3)

Publication Number Publication Date
EP4177557A1 EP4177557A1 (fr) 2023-05-10
EP4177557B1 true EP4177557B1 (fr) 2024-06-19
EP4177557C0 EP4177557C0 (fr) 2024-06-19

Family

ID=84044442

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22204727.6A Active EP4177557B1 (fr) 2021-11-05 2022-10-31 Dispositif de transfert de chaleur

Country Status (2)

Country Link
EP (1) EP4177557B1 (fr)
DE (1) DE102021128819A1 (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE835612C (de) 1950-11-21 1952-04-03 Metallgesellschaft Ag Waermeaustauscher mit Laengsrippenrohren
US4235281A (en) 1978-04-07 1980-11-25 The Boeing Company Condenser/evaporator heat exchange apparatus and method of utilizing the same
CA1223895A (fr) * 1984-03-05 1987-07-07 Hugo I. De Lasa Reacteur pseudodiabatique pour conversions catalytiques exothermiques

Also Published As

Publication number Publication date
EP4177557A1 (fr) 2023-05-10
DE102021128819A1 (de) 2023-05-11
EP4177557C0 (fr) 2024-06-19

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