EP4296599B1 - Wärmetauscher und kühlsystem - Google Patents

Wärmetauscher und kühlsystem

Info

Publication number
EP4296599B1
EP4296599B1 EP21718927.3A EP21718927A EP4296599B1 EP 4296599 B1 EP4296599 B1 EP 4296599B1 EP 21718927 A EP21718927 A EP 21718927A EP 4296599 B1 EP4296599 B1 EP 4296599B1
Authority
EP
European Patent Office
Prior art keywords
pipes
heat exchanger
external
pipe
internal
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
EP21718927.3A
Other languages
English (en)
French (fr)
Other versions
EP4296599A1 (de
EP4296599A8 (de
EP4296599C0 (de
Inventor
Pedro TORIBIO QUERO
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.)
Cruz Pedrosa Agustin
Proyectos Y Montajes Industriales Menxi Srl
Toribio Quero Pedro
Original Assignee
Cruz Pedrosa Agustin
Proyectos Y Montajes Industriales Menxi Srl
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 Cruz Pedrosa Agustin, Proyectos Y Montajes Industriales Menxi Srl filed Critical Cruz Pedrosa Agustin
Publication of EP4296599A1 publication Critical patent/EP4296599A1/de
Publication of EP4296599A8 publication Critical patent/EP4296599A8/de
Application granted granted Critical
Publication of EP4296599B1 publication Critical patent/EP4296599B1/de
Publication of EP4296599C0 publication Critical patent/EP4296599C0/de
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
    • F28D7/10—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 one within the other, e.g. concentrically
    • F28D7/103—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 one within the other, e.g. concentrically consisting of more than two coaxial conduits or modules of more than two coaxial 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
    • F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of 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
    • 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
    • F28D2021/0042—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for foodstuffs

Definitions

  • the present invention relates to a heat exchanger for fluids, particularly suitable for fluids of a foodstuff with low thermal transmittance, such as for example paste from olives.
  • Another aspect of the invention relates to a refrigeration system incorporating such a heat exchanger.
  • Heat exchangers for the heat treatment of fluids are known in the prior art.
  • document DE8332947U1 relates to a heat exchanger for the heat treatment of grape puree, grape must, wine, and the like.
  • the type of heat exchanger may comprise several heat exchange assemblies, arranged in parallel, which comprise internal pipes for the circulation of the fluid to be treated and concentric external pipes for the circulation of a heat exchange medium, which is generally a coolant.
  • a heat exchange medium which is generally a coolant.
  • it has curved pipes that connect one end of the internal pipes of one assembly to the other, as well as ducts that connect the external pipes transversely to each other.
  • This type of heat exchanger is suitable for food products with high thermal transmittance, such as grape products.
  • the length of the heat exchanger required to achieve adequate cooling is either impractical, or the tubes are too wide and cooling is inadequate.
  • Document FR 470955 A discloses a heat exchanger according to the preamble of claim 1.
  • the present invention provides a heat exchanger for fluids, particularly suitable for fluids of a food nature with low thermal transmittance, where fluid is understood as any material that can circulate through pipes, whether in the form of a liquid, gas, dough, paste, granules, etc.
  • the heat exchanger claimed comprises at least two sets of pipes, each set of pipes including an internal pipe, an intermediate pipe and an external pipe, concentric to each other and forming closed spaces between them for the longitudinal circulation of fluids.
  • the sets of pipes are positioned substantially parallel to each other, and the intermediate pipes are connected in series by means of curved pipes, so that they form a circuit for the circulation of the fluid to be treated.
  • one of the intermediate pipes comprises an end that is open to the outside of the heat exchanger through which the fluid to be treated can be introduced, and another of the intermediate pipes comprises an open end through which the fluid to be treated can be extracted.
  • a heat exchanger is obtained with a circuit for the circulation of a heat exchange medium (which will usually be a coolant with which to cool the fluid to be treated) that passes both inside and outside the fluid to be treated and which can have the necessary length to achieve the required heat exchange between the two fluids without its dimensions being impracticable.
  • a heat exchange medium which will usually be a coolant with which to cool the fluid to be treated
  • the heat exchanger includes two sets of pipes
  • one of these would have an inner connecting conduit that connects one of the ends of its internal pipe to an external element (such as the fluid outlet of a pump that introduces the heat exchange medium) and an outer connecting conduit that fluidically connects the other end of the external pipe to the inner connecting conduit of the second set of pipes.
  • the outer connecting conduit of this second set of pipes would connect to another external element (such as the fluid inlet of the pump).
  • the fluid to be treated will only circulate through the intermediate pipes, while the heat exchange medium will circulate inside the internal pipe and through the space available between the external pipe and the intermediate pipe.
  • the direction of circulation of the heat exchange medium should be such that, in the same set of pipes, it passes through the internal pipe first.
  • the curved pipes include removable means of connection to the intermediate pipes, so that they can be easily removed for cleaning the circulation circuit of the fluid to be treated.
  • the intermediate pipes protrude at both ends with respect to the internal and external pipes, which also facilitates the implementation of the removable curved pipes.
  • Both the curved pipes and the intermediate and internal pipes are preferably dimensioned to have a cross-section for a flow of at least 3,000 litres or kilograms per hour.
  • For the connecting conduits preferably pipes with standardised nominal diameters, e.g. 40 mm, 65 mm or 80 mm as per EN ISO 6708, are used.
  • the internal pipes comprise a transverse closing wall at their ends, while the inner connecting conduits and intermediate connecting conduits are longitudinally connected to these closing walls.
  • said conduits may have curved sections for changes of direction, instead of right angles.
  • the circulation of the heat exchange medium is more fluid.
  • the intermediate connecting conduits are connected to the external pipes from the outside thereof and in a radial direction, so that the heat exchange medium encounters less resistance as it passes.
  • the internal pipes preferably protrude at both ends from the external pipes, so that the inner connecting conduits and the intermediate connecting conduits only have to pass through the intermediate pipes.
  • the heat exchanger comprises three sets of pipes.
  • it has a first set of pipes with an inner connecting conduit connecting one end of its internal pipe to an external element (such as the fluid outlet of a pump introducing the heat exchange medium).
  • This first set of pipes also has an outer connecting conduit that fluidically connects the other end of the external pipe itself to the inner connecting conduit of a second set of pipes.
  • This second set of pipes in turn, comprises an outer connecting pipe fluidically connected to the inner connecting conduit of a third set of pipes.
  • the outer connecting conduit of this third set of pipes is connected to another element external to it (such as, for example, the fluid inlet of said pump).
  • two of the pipe sets are at the same height and a third one is above the first two.
  • This cover can also be fitted with legs for support on the ground and connection means for lifting, e.g. with a crane.
  • the inlet and outlet of the heat exchange medium are preferably located at the top of the cover.
  • a further objective of the present invention is a refrigeration system comprising any of the above-described embodiments of the heat exchanger of the present invention.
  • This cooling system may also have a pump for pumping the fluid to be cooled through the intermediate pipes of the heat exchanger, as well as a pump for pumping the coolant through the circuit provided for this purpose in the heat exchanger.
  • the cooling system includes means for the user to select the working or cooling temperature, which preferably may be between -8°C and 8°C.
  • Figures 1 and 2 show a first embodiment of the heat exchanger, which comprises a first and a second set of pipes (10, 10'), each including an internal pipe (11, 11'), an intermediate pipe (12, 12'), and an external pipe (13 13'), concentric to each other.
  • the two intermediate pipes (12, 12') are connected in series by means of a curved pipe (20), and both comprise an open end (131, 131') through which the fluid to be treated can be introduced and extracted.
  • the first set of pipes (10) comprises:
  • the direction of flow of the heat exchange medium in the same set of pipes (10) is such that it passes first through the internal pipe (11, 11') and then through the external pipe (13, 13').
  • Figure 2 also shows the removable connecting means (21) of the curved pipes (20) to the intermediate pipes (12, 12').
  • the internal pipes (11, 11') protrude at both ends with respect to the external pipes (13, 13'), so that the inner connecting conduits (31, 31') and the intermediate connecting conduits (32, 32') only pass through the intermediate pipes (12, 12').
  • the inlet port (311) and the outlet port (331') of the heat exchange medium are horizontal, but could be disposed vertically at the top of the heat exchanger.
  • two of the sets of pipes (10, 10') are in the same vertical plane, but could also be in the same horizontal plane, i.e. at the same height.
  • the cover (40) of the latter embodiment also has legs (41) for its support on the ground and connection means (42) for lifting it.

Landscapes

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

Claims (12)

  1. Wärmetauscher (1) für Fluide, umfassend mindestens zwei Gruppen (10) von Rohren, wobei jede Gruppe (10) von Rohren ein Innenrohr (11), ein Zwischenrohr (12) und ein Außenrohr (13) enthält, die konzentrisch zueinander sind und dazwischen Räume für die Längszirkulation von Fluiden bilden, wobei die Gruppen (10) von Rohren im Wesentlichen parallel zueinander angeordnet sind, wobei die Zwischenrohre (12) mittels gekrümmter Rohre (20) in Reihe verbunden sind, derart, dass sie einen Kreislauf für die Zirkulation des zu behandelnden Fluids bilden, wobei eines der Zwischenrohre (12) ein zur Außenseite des Wärmetauschers (1) offenes Ende umfasst, durch das das zu behandelnde Fluid eingebracht werden kann, und ein weiteres der Zwischenrohre (12) ein offenes Ende umfasst, durch das das zu behandelnde Fluid entnommen werden kann,
    dadurch gekennzeichnet, dass jede Gruppe (10) von Rohren umfasst:
    - eine innere Verbindungsleitung (31), die ein Ende des Innenrohrs (11) mit einem Element außerhalb der entsprechenden Gruppe (10) von Rohren fluidtechnisch verbindet;
    - eine Zwischenverbindungsleitung (32), die das andere Ende ihres Innenrohrs (11) mit dem benachbarten Ende ihres Außenrohrs (13) fluidtechnisch verbindet; und
    - eine äußere Verbindungsleitung (33), die das andere Ende ihres Außenrohrs (13) mit einem weiteren Element außerhalb der entsprechenden Gruppe (10) von Rohren fluidtechnisch verbindet.
  2. Wärmetauscher (1) nach Anspruch 1, wobei die gekrümmten Rohre (20) entfernbare Verbindungsmittel (21) zu den Zwischenrohren umfassen.
  3. Wärmetauscher (1) nach einem der vorhergehenden Ansprüche, wobei die Innenrohre (11) an beiden Enden in Bezug auf die Außenrohre (13) vorstehen, derart, dass die inneren Verbindungsleitungen (31) und die Zwischenverbindungsleitungen (32) lediglich durch die Zwischenrohre (12) verlaufen.
  4. Wärmetauscher (1) nach einem der vorhergehenden Ansprüche, wobei die Zwischenrohre (12) an beiden Enden in Bezug auf die Innenrohre (11) und die Außenrohre (13) vorstehen.
  5. Wärmetauscher (1) nach einem der vorhergehenden Ansprüche, wobei die inneren Verbindungsleitungen (31) und die Zwischenverbindungsleitungen (32) mit den Innenrohren (11) längs verbunden sind.
  6. Wärmetauscher (1) nach einem der vorhergehenden Ansprüche, wobei die Zwischenverbindungsleitungen (32) ausgehend von ihrer Außenseite und in einer radialen Richtung mit den Außenrohre (13) verbunden sind.
  7. Wärmetauscher (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass er drei Gruppen (10) von Rohren umfasst, wobei die Zwischenrohre (12) und die inneren Verbindungsleitungen (31) und äußeren Verbindungsleitungen (33) einer der Gruppen (10) von Rohren ihrerseits mit den entsprechenden Zwischenrohren (12) und inneren Verbindungsleitungen (31) und äußeren Verbindungsleitungen (33) der anderen zwei Gruppen (10) von Rohren verbunden sind.
  8. Wärmetauscher (1) nach Anspruch 7, wobei sich zwei der Gruppen (10) von Rohren in derselben Höhe befinden und eine dritte sich über den ersten zweien befindet.
  9. Wärmetauscher (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass er eine Abdeckung (40) umfasst, in der die Gruppen (10) von Rohren aufgenommen sind, vorzugsweise in der Form eines Zylinders mit Beinen (41) zum Abstützen auf dem Boden und/oder Verbindungsmitteln (42) zum Anheben.
  10. Kühlsystem, dadurch gekennzeichnet, dass es einen Wärmetauscher (1) nach einem der vorhergehenden Ansprüche umfasst.
  11. Kühlsystem nach Anspruch 10, dadurch gekennzeichnet, dass es eine Pumpe zum Pumpen eines zu kühlenden Fluids durch die Zwischenrohren (12) des Wärmetauschers (1) und eine Pumpe zum Pumpen eines Kühlmittels durch einen Kreislauf, der zu diesem Zweck in dem Wärmetauscher (1) vorgesehen ist, umfasst.
  12. Kühlsystem nach Anspruch 10 oder 11, dadurch gekennzeichnet, dass es Mittel zum Regulieren der Kühltemperatur umfasst, wobei die Temperatur vorzugsweise zwischen -8 °C und 8 °C reguliert werden kann.
EP21718927.3A 2021-02-16 2021-02-16 Wärmetauscher und kühlsystem Active EP4296599B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/ES2021/070110 WO2022175566A1 (es) 2021-02-16 2021-02-16 Intercambiador de calor y sistema de refrigeración

Publications (4)

Publication Number Publication Date
EP4296599A1 EP4296599A1 (de) 2023-12-27
EP4296599A8 EP4296599A8 (de) 2024-12-25
EP4296599B1 true EP4296599B1 (de) 2025-07-30
EP4296599C0 EP4296599C0 (de) 2025-07-30

Family

ID=75530052

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21718927.3A Active EP4296599B1 (de) 2021-02-16 2021-02-16 Wärmetauscher und kühlsystem

Country Status (3)

Country Link
EP (1) EP4296599B1 (de)
ES (1) ES3041048T3 (de)
WO (1) WO2022175566A1 (de)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR470955A (fr) * 1914-04-06 1914-10-08 Doering & Hartog Dispositif pour l'échange du froid et de la chaleur
US1759126A (en) * 1926-04-02 1930-05-20 Union Carbide Corp Heat interchanger
DE8332947U1 (de) 1983-11-17 1984-02-16 Kumpitsch, Eduard, 7302 Ostfildern Waermetauscher zur thermischen behandlung von fluessigkeiten
US4834172A (en) * 1988-01-12 1989-05-30 W. Schmidt Gmbh & Co. Kg Heat exchanger
ITUD20070087A1 (it) * 2007-05-24 2008-11-25 Emiflex Spa Dispositivo scambiatore di calore
RU95087U1 (ru) 2009-11-25 2010-06-10 Владимир Александрович Голованец Аппарат теплообменный

Also Published As

Publication number Publication date
EP4296599A1 (de) 2023-12-27
ES3041048T3 (en) 2025-11-06
EP4296599A8 (de) 2024-12-25
WO2022175566A1 (es) 2022-08-25
EP4296599C0 (de) 2025-07-30

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