EP3671090A1 - Procédé de refroidissement amélioré et appareil pour la mise en uvre dudit procédé - Google Patents

Procédé de refroidissement amélioré et appareil pour la mise en uvre dudit procédé Download PDF

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Publication number
EP3671090A1
EP3671090A1 EP19216451.5A EP19216451A EP3671090A1 EP 3671090 A1 EP3671090 A1 EP 3671090A1 EP 19216451 A EP19216451 A EP 19216451A EP 3671090 A1 EP3671090 A1 EP 3671090A1
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EP
European Patent Office
Prior art keywords
cooling
spraying units
spraying
units
adiabatic
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.)
Granted
Application number
EP19216451.5A
Other languages
German (de)
English (en)
Other versions
EP3671090B1 (fr
EP3671090B2 (fr
Inventor
Umberto Merlo
Stefano FILIPPINI
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.)
LU-VE SpA
Original Assignee
LU-VE SpA
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Application filed by LU-VE SpA filed Critical LU-VE SpA
Priority to RS20230353A priority Critical patent/RS64187B2/sr
Publication of EP3671090A1 publication Critical patent/EP3671090A1/fr
Publication of EP3671090B1 publication Critical patent/EP3671090B1/fr
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Publication of EP3671090B2 publication Critical patent/EP3671090B2/fr
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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
    • F28D5/00—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, using the cooling effect of natural or forced evaporation
    • F28D5/02—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, using the cooling effect of natural or forced evaporation in which the evaporating medium flows in a continuous film or trickles freely over the conduits
    • 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
    • F28D3/00—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 flows in a continuous film, or trickles freely, over the conduits
    • F28D3/02—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 flows in a continuous film, or trickles freely, over the conduits with 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
    • F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
    • F28F27/003—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus specially adapted for cooling towers

Definitions

  • the present invention concerns an improved cooling process and the related cooling apparatus.
  • the field of the invention is that of systems for cooling single-phase or two-phase fluids, in turn used in refrigerating or conditioning systems, or in industrial heat exchange systems.
  • the systems to which the invention refers are in particular of the type provided with ducts for the fluid to be cooled, which enters a heat exchange pack where it is cooled by means of an air circulation provided by respective fans and by means of adiabatic panels that pre-cool air sucked by fans through the heat exchange pack, and by means of spray nozzles wetting the surface of the heat exchange pack with water.
  • the main aim of the invention is to provide a cooling process, and the related apparatus, adapted to avoid the above-mentioned drawbacks.
  • the spray nozzles for cooling the adiabatic packs are activated alternately, namely in a rotation cycle sequence in which the spray nozzles operate in alternate phases. In this way, while in a first phase some spray nozzles are active and others are at rest, in the subsequent phases this operating state is varied or exchanged between the spray nozzles within the overall cooling system.
  • the components that perform the cooling are therefore no longer activated only as a function of the exchange power required, but also taking into account the operating time of the spray nozzles.
  • the apparatus according to the invention illustrated in Figure 1 , comprises a framework 10 above which a fan assembly 1 is mounted which sucks cooling air (arrow F in Figure 1 ) through adiabatic panels 2a and 2b.
  • the fluid to be cooled in the heat exchange packs enters through inlets 5a, 5b of the apparatus of Figure 1 and exits through outlets 6a, 6b.
  • the diagram of the cooling system of the heat exchange packs illustrated in Figure 2 comprises said fans 1, which pre-cool air sucked by the fans by contact with the wet surface of said packs.
  • Spraying units are also provided, consisting of pipes 3a,3b,3c,3d which bear respective spraying nozzles for spraying water to cool the heat exchange packs.
  • Respective valves 4a,4b,4c,4d control the water delivery to the cited spraying units 3a, 3b, 3c, 3d. It should be noted that the invention is not limited to the four spraying units shown in the figures, since the number of these units can vary from two or more.
  • Cooling water is supplied through an inlet 5 and is split into a branch 6, conveying cooling water to the valves 4a-4d, and a branch 7 conveying water to the adiabatic panels 2.
  • a first cooling mode of the heat exchange packs of the apparatus in Figure 1 the cooling is carried out in a dry condition, namely by circulation of air by the fans 1 only ( Figure 3 ).
  • cooling by passage of air through the adiabatic panels 2a, 2b is added to the circulation of air by the fans 1 ( Figure 4 ).
  • the operating sequence with rotation cycle of said spraying units 3a, 3b, 3c, 3d is performed in such a way that, when only one adiabatic panel is operating, at least one spraying unit 3a, 3b, 3c, 3d is simultaneously activated on the side of the apparatus opposite to the side on which said adiabatic panel is located.
  • the cooling action of the fans 1 and the adiabatic panels 2a, 2b is integrated with the action performed by three spraying units, i.e. the units 3b, 3c, 3d, respectively, in the version illustrated in Figure 8 , and the units 3a, 3c, 3d in the version of Figure 9 .
  • the operating modes illustrated in said Figures 8 and 9 are rotated by opening the valves 4b, 4c, 4d and 4a, 4c, 4d, respectively.
  • the intervention of the different cooling modes described above can be determined as a function of the specific requirements of the cooling system, based on the overall operating time of the spraying units, or also based on the modes required for the specific intended use of the system.
  • the number of spraying units and related valves could be different.
  • the presence of the adiabatic panels, for example, is not necessary since the cooling system according to the invention can achieve the claimed effects also through the spraying units 3a-3d only, operating in rotation.
  • a system (not illustrated) can be provided for controlling the duration times of the described operating modes of the apparatus, in particular of said spraying units, adjusted based on the required cooling needs.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Telephonic Communication Services (AREA)
  • Processing Of Solid Wastes (AREA)
EP19216451.5A 2018-12-17 2019-12-16 Procédé de refroidissement amélioré et appareil pour la mise en uvre dudit procédé Active EP3671090B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RS20230353A RS64187B2 (sr) 2018-12-17 2019-12-16 Poboljšani postupak hlađenja i uređaj za sprovođenje navedenog postupka

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT102018000011172A IT201800011172A1 (it) 2018-12-17 2018-12-17 Procedimento di raffreddamento di tipo perfezionato e dispositivo per la realizzazione del detto procedimento.

Publications (3)

Publication Number Publication Date
EP3671090A1 true EP3671090A1 (fr) 2020-06-24
EP3671090B1 EP3671090B1 (fr) 2023-04-05
EP3671090B2 EP3671090B2 (fr) 2025-11-19

Family

ID=66166280

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19216451.5A Active EP3671090B2 (fr) 2018-12-17 2019-12-16 Procédé de refroidissement amélioré et appareil pour la mise en uvre dudit procédé

Country Status (6)

Country Link
EP (1) EP3671090B2 (fr)
ES (1) ES2943497T5 (fr)
HU (1) HUE061612T2 (fr)
IT (1) IT201800011172A1 (fr)
PT (1) PT3671090T (fr)
RS (1) RS64187B2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023214866A1 (fr) 2022-05-02 2023-11-09 STRELITS-STRELE, Janis Système de pré-refroidissement adiabatique pour échangeur de chaleur refroidi par air du type en v
WO2025254505A1 (fr) 2025-02-20 2025-12-11 Blue Energy Global, SIA Système d'échangeur de chaleur refroidi par air avec drainage des eaux amélioré

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015173767A1 (fr) * 2014-05-15 2015-11-19 Frigel Firenze S.P.A. Convecteur combiné
EP3306247A1 (fr) * 2016-10-05 2018-04-11 Lu-Ve S.P.A. Structure d'échangeur de chaleur air-eau et procédé de commande et d'amélioration de son fonctionnement
US20180231264A1 (en) * 2017-02-08 2018-08-16 Evapco, Inc. Modulated water flow for once-through adiabatic cooling

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH693043A5 (de) 1998-05-11 2003-01-31 Armin Schnetzler Einrichtung zur Erhöhung der Kühlleistung eines Wärmetauschers.
EP2696159B1 (fr) 2012-08-09 2017-08-30 A-heat Allied Heat Exchange Technology Ag Échangeur thermique et procédé de mise en réseau d'échangeurs thermiques
US9822990B2 (en) 2013-07-19 2017-11-21 Honeywell International Inc. Methods, systems, and devices for humidifying
US9675719B2 (en) 2014-01-17 2017-06-13 Dri-Steem Corporation Staging control for an evaporative media system
EP3002530B1 (fr) 2014-10-03 2019-04-10 Güntner GmbH & Co. KG Échangeur thermique, dispositif d'échangeur thermique et procédé d'utilisation d'un échangeur thermique

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015173767A1 (fr) * 2014-05-15 2015-11-19 Frigel Firenze S.P.A. Convecteur combiné
EP3306247A1 (fr) * 2016-10-05 2018-04-11 Lu-Ve S.P.A. Structure d'échangeur de chaleur air-eau et procédé de commande et d'amélioration de son fonctionnement
US20180231264A1 (en) * 2017-02-08 2018-08-16 Evapco, Inc. Modulated water flow for once-through adiabatic cooling

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023214866A1 (fr) 2022-05-02 2023-11-09 STRELITS-STRELE, Janis Système de pré-refroidissement adiabatique pour échangeur de chaleur refroidi par air du type en v
EP4515167B1 (fr) 2022-05-02 2025-07-16 Blue Energy Global, SIA Système de pré-refroidissement adiabatique pour échangeur de chaleur refroidi par air du type en v
WO2025254505A1 (fr) 2025-02-20 2025-12-11 Blue Energy Global, SIA Système d'échangeur de chaleur refroidi par air avec drainage des eaux amélioré

Also Published As

Publication number Publication date
EP3671090B1 (fr) 2023-04-05
EP3671090B2 (fr) 2025-11-19
IT201800011172A1 (it) 2020-06-17
RS64187B2 (sr) 2026-03-31
HUE061612T2 (hu) 2023-07-28
PT3671090T (pt) 2023-07-04
ES2943497T3 (es) 2023-06-13
RS64187B1 (sr) 2023-06-30
ES2943497T5 (en) 2026-02-19

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