EP0046716B1 - Kühlvorrichtung mit einer strahlenden Platte und einer Verdampferplatte - Google Patents

Kühlvorrichtung mit einer strahlenden Platte und einer Verdampferplatte Download PDF

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Publication number
EP0046716B1
EP0046716B1 EP81401342A EP81401342A EP0046716B1 EP 0046716 B1 EP0046716 B1 EP 0046716B1 EP 81401342 A EP81401342 A EP 81401342A EP 81401342 A EP81401342 A EP 81401342A EP 0046716 B1 EP0046716 B1 EP 0046716B1
Authority
EP
European Patent Office
Prior art keywords
panel
pipe
heat
storage enclosure
radiant surface
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.)
Expired
Application number
EP81401342A
Other languages
English (en)
French (fr)
Other versions
EP0046716A2 (de
EP0046716A3 (en
Inventor
Raymond Berger
Maurice De Cachard
André Gouzy
Félix Trombe
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.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
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 Commissariat a lEnergie Atomique CEA filed Critical Commissariat a lEnergie Atomique CEA
Publication of EP0046716A2 publication Critical patent/EP0046716A2/de
Publication of EP0046716A3 publication Critical patent/EP0046716A3/fr
Application granted granted Critical
Publication of EP0046716B1 publication Critical patent/EP0046716B1/de
Expired legal-status Critical Current

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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
    • F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
    • F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
    • F28D15/0266—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes with separate evaporating and condensing chambers connected by at least one conduit; Loop-type heat pipes; with multiple or common evaporating or condensing chambers
    • 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
    • F25B23/00—Machines, plants or systems, with a single mode of operation not covered by groups F25B1/00 - F25B21/00, e.g. using selective radiation effect
    • F25B23/006—Machines, plants or systems, with a single mode of operation not covered by groups F25B1/00 - F25B21/00, e.g. using selective radiation effect boiling cooling systems
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
    • F25D2400/32—Removal, transportation or shipping of refrigerating devices from one location to another
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S165/00—Heat exchange
    • Y10S165/904—Radiation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S62/00—Refrigeration
    • Y10S62/01—Radiant cooling

Definitions

  • the present invention relates to a modular apparatus for producing cold.
  • the invention relates to a cold production apparatus comprising a cold storage enclosure filled with a material having a solid-liquid transition near the operating temperature of the apparatus, a radiant surface the radiation falls into at least one of the windows of transparency of the atmosphere, a substantially vertical duct immersed in the material of the cold storage enclosure, connecting the radiating surface to the storage enclosure, this duct comprising a certain amount of '' a fluid vaporizable under the operating conditions of the device, the duct and the heat-transfer fluid forming a heat-pipe type device playing the role of a thermal diode which transmits heat only in the direction of the storage enclosure towards the radiant surface.
  • Such devices operate independently, that is to say without external energy supply and have no moving parts, which gives them great simplicity and excellent reliability.
  • These devices are based on the known property of the Earth's atmosphere to let preferentially pass the radiation between 8 and 13 ⁇ and between 16 and 25 ⁇ . Part of the radiation emitted by black bodies is in these ranges.
  • a cold production device which corresponds to the preamble of claim 1 (FR-A-2 353 029). It includes a cold storage enclosure filled with a radiating storage material, heat pipes thermally connected to the radiating surface and immersed in the storage material.
  • the heat pipes thermally connect the storage enclosure and the radiating surface. They are of the thermal diode type and fulfill the heat transfer function only in the direction of the storage enclosure towards the radiating surface.
  • the device is thermally insulated from the ambient environment. The assembly formed by the radiating surface and the heat pipes floats on the storage material.
  • the exchange surface between the heat pipes and the storage material is small. If we want to increase this surface by providing fins, they will work in thermal conduction regime. As a result, their performance will not be very high. Thus, the thermal bond between the storage material and the heat pipes is relatively poor.
  • the radiating surface also works in thermal conduction regime. As a result, the thermal bond between this surface and the heat pipe (s) is also relatively poor.
  • the first concerns a cooling system allowing to cool a place located in a room. It applies to the cooling of telecommunications equipment located in a radio relay station located in a desert region where there is a significant temperature difference between day and night.
  • the device comprises an external heat exchanger arranged outside the enclosure, an internal heat exchanger situated inside the enclosure and a heat storage device placed at an intermediate level between that of the exchanger outside and inside exchanger.
  • the production of cold is obtained by storing the cold and by using the temperature differences between day and night and not directly by the use of transparency windows of the atmosphere.
  • the heat exchanges are not carried out by rayonnemeat but by natural convection or by conduction.
  • Document DE-A-2 224 800 relates to a refrigeration cabinet.
  • the device comprises an evaporator and a secondary system in which a fluid circulates.
  • the secondary system consists of an evaporation section and a condensation section.
  • a notch prevents heat exchange between the two sections.
  • the condensing section is attached to the evaporator which is the defrostable heat exchanger of a refrigeration cabinet.
  • the secondary system does not produce cold by itself but acts as a simple intermediary. Its operating principle is therefore quite different from that of the invention.
  • the present invention aims to remedy these drawbacks. As characterized in the claims, it solves the problem of creating an apparatus for the production of cold in which the thermal bond between the cold storage material and the radiating surface is of low manufacturing cost, in which the thermal bond between the storage material and a conduit immersed in this material is good, in which the thermal bond between the radiating surface and the submerged conduit is good. Finally, these devices must have a reduced size for their transport.
  • connections between the serpentine-shaped conduits formed on each of the panels, one for the flow of steam to the condenser, the other for the return of the liquid to the evaporator are made of annealed metal, copper or aluminum for example. This makes it possible to fold and deploy the assembly a certain number of times without risk of leaks or ruptures.
  • the assembly constituted by the radiating surface, the second panel forming an evaporator, the closed circuit is formed by a single perforated panel in its central part to determine an upper panel forming the radiating surface and a lower panel. forming an evaporator.
  • FIG. 1 shows a first embodiment of the apparatus for producing cold according to the invention.
  • This device consists of a first panel 10 forming a radiating surface whose radiation falls into at least one window of transparency of the atmosphere, a second panel 12 immersed substantially vertically in the material of the storage enclosure.
  • a coil-shaped conduit 14 is formed on the panel 10.
  • a conduit 16 substantially identical to the conduit 14 is formed on the panel 12.
  • the end 14a of the conduit 14 is connected to the end 16a of the conduit 16 by a connector 18
  • the end 14b of the conduit 14 is connected to the end 16b of the conduit 16 by a connector 20.
  • the connector 20 comprises a filling nozzle 22 by which a certain amount of a heat transfer fluid is introduced.
  • This heat-transfer fluid for example a freon or ammonia, is vaporizable under the operating conditions of the device.
  • the tube 18 is used for the departure of the steam to the condenser, while the tube 20 is used for the return of the heat transfer liquid to the evaporator.
  • the thermal bond between the storage material and the evaporator panel 12 is improved due to the presence of the duct 16 in the form of a serpentine over the entire surface of the evaporator.
  • the thermal connection between the duct 14 and the condenser panel is improved.
  • the apparatus can be produced according to the “Roll Bond” method which consists in depositing by printing (rotary type for newspapers) a paint on a metal sheet; another metal sheet is then placed and the whole is hot-rolled. Diffusion molding occurs except in areas covered with paint. A pressure is then created which detaches the non-welded parts.
  • the panels 10 and 12 can be constituted by condenser panels commonly used in the refrigeration industry. Therefore, the cost of the device is decreased. The space requirement during transport is also reduced, which allows a reduction in the cost of this transport.
  • connections 18 and 20 are made of a plastically deformable material, for example copper or annealed aluminum, which makes it possible to fold and deploy the assembly a certain number of times without risk of leaks or ruptures.
  • the structure thus obtained is called “portfolio” as opposed to the structure of the device according to the prior art described above, called “open umbrella”. the space requirement during transport is thus reduced.
  • FIG 2 An alternative embodiment of the device shown in Figure 2.
  • This device is made in a single panel which simultaneously fulfills the functions of condenser in its upper part 10, and evaporator in its lower part 12.
  • the zones 10 and 12 are separated by openings 24 which make it possible to thermally isolate the evaporator 12 from the condenser 10.
  • the connections 18 and 20 of the previous embodiment are thus eliminated, the closed circuit inside which finds the heat transfer fluid being produced in a single part. Only the filling nozzle 22 remains necessary for the heat transfer fluid.
  • This panel can also be produced using the “Roll Bond” process.
  • This simple and inexpensive device can be used on very large surfaces, and it is integrated interesting to present it in modular form. Such an embodiment is shown in FIG. 3.
  • the panel formed in one piece described with reference to Figure 2 is hung by a flange 26 obtained by folding the end of the panel 10 to a float 28.
  • the shape of the float 28 which can be produced by example in expanded polystyrene, is determined so as to match that of the panel and to give the whole the desired base according to the geographic and topographical data of the location.
  • Modular devices such as the one shown in FIG. 3, all identical but completely independent of one another can be juxtaposed to completely cover an area as large as desired.
  • the radiant surface can be obtained directly at low cost by an oxidation treatment anode performed after filling with heat transfer fluid and sealing the panel.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Claims (4)

1. Vorrichtung für die Erzeugung von Kälte mit einem Kältespeicherraum, welcher mit einem Material gefüllt ist, bei welchem im Bereich der Arbeitstemperatur der Vorrichtung ein Übergang zwischen dem festen und dem flüssigen Zustand stattfindet, ferner mit einer Strahlungsfläche (10), deren Strahlung im Bereich wenigstens eines Transparenzfensters der Atmosphäre liegt, einer in das Material des Kältespeicherraumes eintauchenden, im wesentlichen senkrechten Leitung, welche die Strahlungsfläche (10) mit dem Speicherraum verbindet und eine gewisse Menge einer unter den Arbeitsbedingungen der Vorrichtung verdampfbaren Flüssigkeit enthält, wobei die Leitung (14, 16) und die Wärmeträgerflüssigkeit eine Einrichtung der als Wärmeübertrager (caloduc) bezeichneten Art bilden, welche die Rolle einer thermischen Diode spielen und die Wärme nur in der Richtung von dem Speicherraum zur Strahlungsfläche überträgt, dadurch gekennzeichnet, dass die die Strahlungsfläche (10) mit dem Speicherraum verbindende Leitung (14, 16) die Form zweier jeweils eine zu Serpentinen geformte Leitung aufweisenden Platten (10, 12) hat, dass die beiden Leitungen über plastisch verformbare Anschlüsse (18, 20) zur Bildung eines geschlossenen Kreises miteinander verbunden sind und dass die Ebenen der beiden Platten (10, 12) einen im wesentlichen rechten Flächenwinkel bilden.
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die plastisch verformbaren Anschlüsse (18, 20) aus einem aus der Aluminium und Kupfer Umfassenden Gruppe gewählten, geglühten Metall gefertigt sind.
3. Vorrichtung nach einem der Ansprüche 1 und 2, dadurch gekennzeichnet, dass die Kondensatorplatte (10), die Verdampferplatte (12), der geschlossene Leitungskreis, in welchem die Wärmeträgerflüssigkeit umläuft und die Anschlüsse (18 und 20) in Form einer einzigen Platte geformt sind, welche in ihrem mittleren Bereich die Wärmeleitung zwischen dem Kondensator (10) und dem Verdampfer (12) begrenzende Fenster (24) aufweist.
4. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass sie einen unter der die Strahlungsfläche bildenden Platte (10) angeordneten und von einem umgebogenen Rand (26) der Platte festgehaltenen Schwimmer (28) aufweist, dessen Form so ausgebildet ist, dass er die Vorrichtung in der gewünschten Lage hält.
EP81401342A 1980-08-27 1981-08-26 Kühlvorrichtung mit einer strahlenden Platte und einer Verdampferplatte Expired EP0046716B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8018582 1980-08-27
FR8018582A FR2489490A1 (fr) 1980-08-27 1980-08-27 Appareil de production de froid comportant un panneau rayonnant et un panneau evaporateur

Publications (3)

Publication Number Publication Date
EP0046716A2 EP0046716A2 (de) 1982-03-03
EP0046716A3 EP0046716A3 (en) 1982-03-17
EP0046716B1 true EP0046716B1 (de) 1984-10-03

Family

ID=9245425

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81401342A Expired EP0046716B1 (de) 1980-08-27 1981-08-26 Kühlvorrichtung mit einer strahlenden Platte und einer Verdampferplatte

Country Status (6)

Country Link
US (1) US4452051A (de)
EP (1) EP0046716B1 (de)
AU (1) AU548818B2 (de)
DE (1) DE3166493D1 (de)
ES (1) ES8206002A1 (de)
FR (1) FR2489490A1 (de)

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US8250881B1 (en) 2006-11-21 2012-08-28 Michael Reihl Method and apparatus for controlling temperature of a temperature maintenance storage unit
US8122729B2 (en) * 2007-03-13 2012-02-28 Dri-Eaz Products, Inc. Dehumidification systems and methods for extracting moisture from water damaged structures
US8919426B2 (en) * 2007-10-22 2014-12-30 The Peregrine Falcon Corporation Micro-channel pulsating heat pipe
US8290742B2 (en) * 2008-11-17 2012-10-16 Dri-Eaz Products, Inc. Methods and systems for determining dehumidifier performance
TW201036527A (en) * 2009-03-19 2010-10-01 Acbel Polytech Inc Large-area liquid-cooled heat-dissipation device
GB2482100B (en) 2009-04-27 2014-01-22 Dri Eaz Products Inc Systems and methods for operating and monitoring dehumidifiers
CN101645714B (zh) * 2009-09-03 2012-12-12 华为技术有限公司 一种远端射频模块
USD634414S1 (en) 2010-04-27 2011-03-15 Dri-Eaz Products, Inc. Dehumidifier housing
CA2851856C (en) 2011-10-14 2019-01-08 Dri-Eaz Products, Inc. Dehumidifiers having improved heat exchange blocks and associated methods of use and manufacture
FR2983884B1 (fr) * 2011-12-13 2014-02-07 Andre Crahay Dispositif d'isolation et de regulation thermique
EP2677261B1 (de) * 2012-06-20 2018-10-10 ABB Schweiz AG Zweiphasiges Kühlsystem für elektronische Bauteile
USD731632S1 (en) 2012-12-04 2015-06-09 Dri-Eaz Products, Inc. Compact dehumidifier
CN104596333B (zh) 2013-10-31 2017-09-15 台达电子工业股份有限公司 热交换机
US11473848B2 (en) 2013-10-31 2022-10-18 Delta Electronics, Inc. Thermosiphon heat exchanger

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Also Published As

Publication number Publication date
DE3166493D1 (en) 1984-11-08
AU548818B2 (en) 1986-01-02
US4452051A (en) 1984-06-05
FR2489490B1 (de) 1984-04-13
FR2489490A1 (fr) 1982-03-05
EP0046716A2 (de) 1982-03-03
EP0046716A3 (en) 1982-03-17
ES504979A0 (es) 1982-07-01
ES8206002A1 (es) 1982-07-01
AU7423381A (en) 1982-03-04

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