EP4332486B1 - Echangeur de chaleur et son procédé de fabrication - Google Patents

Echangeur de chaleur et son procédé de fabrication

Info

Publication number
EP4332486B1
EP4332486B1 EP23195078.3A EP23195078A EP4332486B1 EP 4332486 B1 EP4332486 B1 EP 4332486B1 EP 23195078 A EP23195078 A EP 23195078A EP 4332486 B1 EP4332486 B1 EP 4332486B1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
core
coil
coil tube
exchanger according
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
EP23195078.3A
Other languages
German (de)
English (en)
Other versions
EP4332486A1 (fr
EP4332486C0 (fr
Inventor
Ari Sillanpää
Sakari MÄNTY
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.)
Uponor Infra Oy
Original Assignee
Uponor Infra Oy
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 Uponor Infra Oy filed Critical Uponor Infra Oy
Publication of EP4332486A1 publication Critical patent/EP4332486A1/fr
Application granted granted Critical
Publication of EP4332486B1 publication Critical patent/EP4332486B1/fr
Publication of EP4332486C0 publication Critical patent/EP4332486C0/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • F28D7/02—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 helically coiled
    • 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
    • F28D1/0206—Heat exchangers immersed in a large body of liquid
    • F28D1/022—Heat exchangers immersed in a large body of liquid for immersion in a natural body of water, e.g. marine radiators
    • 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
    • F28D1/047—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 bent, e.g. in a serpentine or zig-zag
    • 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
    • F28D21/0001—Recuperative heat exchangers
    • 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
    • F28D21/0001—Recuperative heat exchangers
    • F28D21/0012—Recuperative heat exchangers the heat being recuperated from waste water or from condensates
    • 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
    • F28D21/0017—Flooded core heat exchangers
    • 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
    • F28D7/02—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 helically coiled
    • F28D7/024—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 helically coiled the conduits of only one medium being helically coiled tubes, the coils having a cylindrical configuration
    • 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
    • F28D7/02—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 helically coiled
    • F28D7/028—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 helically coiled the conduits of at least one medium being helically coiled, the coils having a conical configuration
    • 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
    • F28D7/04—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 spirally coiled
    • 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
    • F28F21/06—Constructions of heat-exchange apparatus characterised by the selection of particular materials of plastics material
    • 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
    • F28F21/06—Constructions of heat-exchange apparatus characterised by the selection of particular materials of plastics material
    • F28F21/062—Constructions of heat-exchange apparatus characterised by the selection of particular materials of plastics material the heat-exchange apparatus employing tubular conduits
    • 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
    • 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
    • F28F9/22—Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/02—Details of evaporators
    • F25B2339/024—Evaporators with refrigerant in a vessel in which is situated a heat exchanger
    • F25B2339/0242—Evaporators with refrigerant in a vessel in which is situated a heat exchanger having tubular elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/04—Details of condensers
    • F25B2339/046—Condensers with refrigerant heat exchange tubes positioned inside or around a vessel containing water or pcm to cool the refrigerant gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/04—Details of condensers
    • F25B2339/047—Water-cooled condensers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00—Evaporators; Condensers
    • F25B39/02—Evaporators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00—Evaporators; Condensers
    • F25B39/04—Condensers

Definitions

  • the invention relates to heat exchangers, especially to heat exchangers for recovering and releasing heat from water.
  • the invention relates to heat exchangers as defined in the preamble of claim 1 and as illustrated in FR 2 128 127A .
  • heat exchangers for low temperatures can be found in EP 3117170 , SE 165824 , SU 785633 , US 4735261 and WO 2012064387 .
  • a heat exchanger as defined in claim 1.
  • thermoelectric heat exchanger wherein all major parts are made of plastic, at least the parts forming and within the flow path of the second liquid.
  • the heat exchanger tubing comprises a first coil tube coiled around the core and at least one second coil tube coiled around the first coil tube wherein the first end of the first coil tube is located at vicinity of the first end of the core and the first end of the second coil tube is located at a distance from the first end of the core that is greater than the distance between the first end of the first coil tube and the first end of the core so that the first ends of the coil tubes form a cone at the first end of the core and the second ends of the coil tubes are set on a same plane.
  • the heat exchanger tubing may comprise multiple successive coil tubes having first ends distanced gradually at longer distances from the first end of the core.
  • each coil tube may be the same.
  • a heat exchanger comprising at least one axial divider wall extending between the outer surface of the core and the inner surface of the body and having holes for coil tubes.
  • a heat exchanger comprising at least one radial divider extending from either the outer surface of the core or the inner surface of the body in between the coil tubes creating one or multiple flow paths for the second liquid.
  • FIGURE 1 illustrates a heat exchanger in accordance with at least some embodiments of the present invention.
  • a heat exchanger tubing 2 is arranged around the core 1 and the heat exchanger tubing 2 is forms an outer borderline defining the shape of the heat exchanger tubing 2.
  • the shape of the heat exchanger tubing 2 has a first part 4 formed as a cone and a second part 5 formed as a cylinder.
  • the diameter of the cylinder is the same as the largest diameter of the cone, so these diameters match each other.
  • a body 3 forms the outer casing of the heat exchanger.
  • the outer surface of the body is cylindrical.
  • the heat exchanger may be used even in cold waters having temperature only few degrees above zero, even at a range from 0,5 - 5°C, freezing may be a problem.
  • the second liquid flows on the bottom reservoir 16 of the body 3 and exits via outlet 17.

Landscapes

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

Claims (12)

  1. Échangeur de chaleur comprenant :
    - un noyau (1)
    - une tubulure (2) d'échangeur de chaleur pour un premier liquide,
    - un corps (3, 13) entourant la tubulure (2) d'échangeur de chaleur, dans lequel la surface interne du corps (3) a le même profil que la limite externe de la tubulure (2) d'échangeur de chaleur, la surface interne du corps (3) étant formée comme une enveloppe autour de la tubulure (2) d'échangeur de chaleur et délimitant avec le noyau (1) un trajet d'écoulement pour le deuxième liquide, l'échangeur de chaleur étant
    caractérisé en ce que
    - le noyau (1) est cylindrique et chaque tube de bobine (6, 7, 7xx) est enroulé parallèlement au noyau (1),
    - la tubulure (2) d'échangeur de chaleur a une première partie (4) formée comme un cône ayant un premier diamètre et un deuxième diamètre plus grand, et une deuxième partie (5) formée comme un cylindre ayant le même diamètre que le deuxième diamètre plus grand du cône.
  2. Échangeur de chaleur selon la revendication 1, dans lequel toutes les parties majeures sont faites de plastique, au moins les parties formant le, et à l'intérieur du, trajet d'écoulement du deuxième liquide.
  3. Échangeur de chaleur selon la revendication 1 ou la revendication 2, dans lequel la section transversale d'au moins le noyau (1) et la surface externe du corps (3) est circulaire ou ovale.
  4. Échangeur de chaleur selon l'une des revendications 1 ou 2, dans lequel la tubulure (2) d'échangeur de chaleur comprend
    - un premier tube de bobine (6) embobiné autour du noyau (1), et
    - au moins un deuxième tube de bobine (7) enroulé autour du premier tube de bobine (6)
    dans lequel
    - la première extrémité (9) du premier tube de bobine (6) est située à proximité de la première extrémité du noyau (8), la première extrémité (9) du deuxième tube de bobine (7) est située à une distance de la première extrémité du noyau (8) qui est supérieure à la distance entre la première extrémité (9) du premier tube de bobine (6) et la première extrémité du noyau (8) de sorte que les tubes de bobine (6, 7, 7xx) forment un cône au niveau de la première extrémité du noyau (8) et les deuxièmes extrémités (10) des tubes de bobine (6, 7, 7xx) sont établis sur un même plan.
  5. Échangeur de chaleur selon la revendication 3, dans lequel la tubulure (2) d'échangeur de chaleur comprend de multiples tubes de bobine (6, 7, 7xx) successifs ayant des premières extrémités (9) distancées progressivement à des distances plus longues de la première extrémité du noyau (8).
  6. Échangeur de chaleur selon l'une des revendications 3 ou 4 dans lequel la longueur de chaque tube de bobine (6, 7, 7xx) est la même.
  7. Échangeur de chaleur selon l'une des revendications 3 ou 4 dans lequel la longueur de chaque tube de bobine (6, 7, 7xx) est de 50 à 300 m.
  8. Échangeur de chaleur selon l'une quelconque des revendications 3 à 5, comprenant au moins une paroi (11) de séparateur axial s'étendant entre la surface extérieure du noyau (1) et la surface intérieure du corps (3) et ayant des sièges (24) pour tubes de bobine (6, 7, 7xx).
  9. Échangeur de chaleur selon l'une des revendications 1 à 6, comprenant au moins un séparateur radial (12) s'étendant soit à partir de la surface extérieure du noyau (1) soit à partir de la surface intérieure du corps (3) entre les tubes de bobine (6, 7, 7xx) créant un ou plusieurs trajets d'écoulement pour le deuxième liquide.
  10. Échangeur de chaleur selon la revendication 7, dans lequel les séparateurs axiaux (12) comprennent de multiples trous.
  11. Échangeur de chaleur selon l'une des revendications 3 à 8, dans lequel les tubes de bobine (6, 7, 7xx) sont des tuyaux continus uniques sans épissures ou joints.
  12. Procédé de fabrication d'un échangeur de chaleur selon les revendications 1 à 11, comprenant :
    - la fourniture d'un noyau (1),
    - la fixation de premiers supports (22) sur la surface du noyau,
    - l'enroulement d'un premier tube hélicoïdal (6) autour du noyau (1) et sa fixation sur les supports (22),
    - la fixation de deuxièmes supports (22) sur les premiers supports (22),
    - l'enroulement d'un deuxième tube hélicoïdal autour du noyau (1) et sa fixation sur les deuxièmes supports (22),
    - l'ajout de supports (22) et de tubes de bobine (7xx) supplémentaires comme dans les étapes précédentes,
    - la jointure de premières extrémités (9) des tubes de bobine (6, 7, 7xx) à un distributeur,
    - la jointure de deuxièmes extrémités 10 des tubes de bobine (6, 7, 7xx) à un collecteur (20),
    - la fourniture à l'échangeur de chaleur d'un corps de couverture (3).
EP23195078.3A 2022-09-05 2023-09-04 Echangeur de chaleur et son procédé de fabrication Active EP4332486B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI20225776A FI20225776A1 (en) 2022-09-05 2022-09-05 Heat exchanger and method for its manufacture

Publications (3)

Publication Number Publication Date
EP4332486A1 EP4332486A1 (fr) 2024-03-06
EP4332486B1 true EP4332486B1 (fr) 2025-07-23
EP4332486C0 EP4332486C0 (fr) 2025-07-23

Family

ID=87930027

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23195078.3A Active EP4332486B1 (fr) 2022-09-05 2023-09-04 Echangeur de chaleur et son procédé de fabrication

Country Status (2)

Country Link
EP (1) EP4332486B1 (fr)
FI (1) FI20225776A1 (fr)

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE165824C1 (fr)
FR2128127B1 (fr) * 1971-03-05 1974-02-15 Bignier Schmid Laurent
SU785633A1 (ru) 1979-01-18 1980-12-07 Предприятие П/Я Р-6273 Горизонтальный модульный теплообменник
US4735261A (en) 1982-09-13 1988-04-05 Plascore, Inc. Plastic heat exchanger
GB8334078D0 (en) * 1983-12-21 1984-02-01 Laporte Industries Ltd Heat exchanger
EP0874209A1 (fr) * 1997-04-24 1998-10-28 Giorgio Scanferla Echangeur de chaleur pour un chauffe-eau et sa méthode de fabrication
US20100096115A1 (en) * 2008-10-07 2010-04-22 Donald Charles Erickson Multiple concentric cylindrical co-coiled heat exchanger
WO2012064387A1 (fr) 2010-11-08 2012-05-18 Geoenergy Enterprises, Llc Procédé de chauffage/refroidissement de structure au moyen d'un système géothermique
GB201319284D0 (en) * 2013-10-31 2013-12-18 Heat Recovery Solutions Ltd Heat exchange array
FI126014B (fi) 2014-03-04 2016-05-31 Uponor Infra Oy Matalan lämpötilan lämmönvaihdin
CN109612303A (zh) * 2019-01-25 2019-04-12 安徽理工大学 一种用于空调的高效率螺旋式换热器
RS20200036A1 (sr) * 2020-01-13 2021-07-30 Stamenic Aleksandar Uređaj za razmenu energije između medijuma sa poboljšanom strukturom i performansama

Also Published As

Publication number Publication date
EP4332486A1 (fr) 2024-03-06
FI20225776A1 (en) 2024-03-06
EP4332486C0 (fr) 2025-07-23

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