EP1481204B1 - Emballage auto-refrigerant et dispositif d'enclenchement associe - Google Patents

Emballage auto-refrigerant et dispositif d'enclenchement associe Download PDF

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Publication number
EP1481204B1
EP1481204B1 EP03718902A EP03718902A EP1481204B1 EP 1481204 B1 EP1481204 B1 EP 1481204B1 EP 03718902 A EP03718902 A EP 03718902A EP 03718902 A EP03718902 A EP 03718902A EP 1481204 B1 EP1481204 B1 EP 1481204B1
Authority
EP
European Patent Office
Prior art keywords
cavity
self
valve
container according
cooling container
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 - Lifetime
Application number
EP03718902A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1481204A1 (fr
Inventor
Pierre Jeuch
Lionel Frantz
Fadi Khairallah
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.)
Thermagen SA
Original Assignee
Thermagen SA
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 Thermagen SA filed Critical Thermagen SA
Publication of EP1481204A1 publication Critical patent/EP1481204A1/fr
Application granted granted Critical
Publication of EP1481204B1 publication Critical patent/EP1481204B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • F25D31/00—Other cooling or freezing apparatus
    • F25D31/006—Other cooling or freezing apparatus specially adapted for cooling receptacles, e.g. tanks
    • F25D31/007—Bottles or cans
    • 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
    • F25B17/00—Sorption machines, plants or systems, operating intermittently, e.g. absorption or adsorption type
    • F25B17/08—Sorption machines, plants or systems, operating intermittently, e.g. absorption or adsorption type the absorbent or adsorbent being a solid, e.g. salt
    • 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
    • F25D2331/00—Details or arrangements of other cooling or freezing apparatus not provided for in other groups of this subclass
    • F25D2331/80—Type of cooled receptacles
    • F25D2331/805—Cans

Definitions

  • the present invention relates to a package for cooling its contents by a method of evaporation and adsorption.
  • the principle of such a cooling method is to evaporate a liquid, said coolant, under the effect of a depression maintained by pumping the vapors of said liquid.
  • the invention is applicable to the cooling of edible products such as beverages, ice creams, but also to products or inedible such as pharmaceuticals or cosmetics.
  • the invention is particularly applicable to the cooling of a beverage contained in a closed package type can or bottle.
  • An object of the present invention is thus to allow the consumption of a drink at an ideal temperature anywhere and at any time.
  • US Pat. No. 4,928,495 an illustration of which is given in FIG. 1, describes a self-cooling packaging configuration (presented as a can) comprising a flattened rectangular heat exchanger 16 immersed in a beverage to be cooled. and connected to an adsorption device 22.
  • This patent describes a block diagram without specifying the means of making such a device taking into account the economic constraints related to an application to disposable packaging.
  • the beverage package described in this international application consists of a first closed box 10 containing the drinking beverage and a heat exchanger 20 and a second closed box containing desiccants 24.
  • the two boxes are assembled by a skirt 29.
  • Communication means 40 between said two boxes must be activated by a desoperculator 44 to allow the implementation of the evaporative cooling method adsorption of the vapors of a refrigerant liquid contained in the exchanger.
  • These communication means comprise a seal 66 composed of two membranes 70 and 71 disposed opposite each other in the walls of the first and second boxes of the package.
  • the descropper 44 makes it possible to tear the seal 66 for placing the desiccant tank 30 in communication with the heat exchanger 20, thereby triggering the adsorption evaporation reaction and the cooling of the beverage.
  • This document also describes the method of manufacturing such a self-cooling beverage package and in particular the assembly steps of the various elements constituting the packaging.
  • the assembly step of the first box 10, containing the beverage and the heat exchanger 20, with the box 30 containing the desiccants is particularly delicate because it is essential to maintain a high vacuum in the desiccant tank 30 and at the sealing 66 so that the adsorption reaction can be triggered during the tearing of the membranes 70 and 71.
  • the application WO 01/11297 proposes for this purpose to have a drop of oil 73 between the two membranes 70 and 71 in order to guarantee a good vacuum seal when assembling the two boxes.
  • the self-cooling beverage package and the method described in this application WO 01/11297 have certain disadvantages.
  • the communication system of the desiccant tank 30 with the heat exchanger 20 is not optimized.
  • the two membranes 70 and 71 each have a relatively large thickness necessary to withstand the external atmospheric pressure before assembly of the package.
  • these two membranes 70 and 71 constitute a double thickness which requires a major breaking force.
  • the patent application specifies for this purpose that the descrambling element 44 is actuated by means of a screw.
  • the realization of such a seal 66 complicates the assembly of the package, in particular with the need to maintain the gap between the two membranes 70 and 71 under vacuum, while one of between it turns relative to the other.
  • the objective of the present invention is to solve the disadvantages of the prior art.
  • the present invention proposes to produce a self-cooling package based on the method of cooling by evaporation and adsorption as described above and to arrange the means of communication between the desiccant tank and the heat exchanger in a common wall said tank and exchanger.
  • the communication means consist of a non-return valve, that is to say resistant to high pressure in one direction and easily opening in the other direction.
  • the check valve can thus withstand atmospheric pressure with a high vacuum in the desiccant tank and can be operated by a minimal force towards the inside of the heat exchanger.
  • the invention relates to a self-cooling package comprising a first cavity containing a product to be refrigerated, a second cavity forming a heat exchanger and containing a cooling liquid and its vapor, a third cavity containing adsorption pumping means of said steam and means for placing said second cavity in communication with said third cavity, characterized in that the second and third cavities have a common wall integrating the means of communication, and in that said means for putting into communication are constituted by a non-return valve adapted to withstand the pressure exerted on the side of the second cavity and opening by action of a force exerted on the side of the third cavity.
  • the valve consists of a solid lid located on the side of the second cavity and closing an opening of the common wall of the second and third cavities.
  • the communication means further comprise a seal valve, consisting of a deformable seal located between the solid cover and the common wall of the second and third cavities or a vacuum-tight sheet and tearable covering the solid cover and glued to the common wall of the second and third cavities.
  • a seal valve consisting of a deformable seal located between the solid cover and the common wall of the second and third cavities or a vacuum-tight sheet and tearable covering the solid cover and glued to the common wall of the second and third cavities.
  • the valve is actuated by a push rod transmitting a displacement of at least a portion of the wall of the third cavity opposite the wall comprising the communication means.
  • the push rod is an open hollow tube allowing the vapor of the coolant to circulate inside said rod.
  • the push rod comprises means for opening the valve in two stages, a first position of the valve delimiting a restricted passage of the vapor of the cooling liquid and a second position of the valve facilitating an enlarged passage of the vapor. coolant.
  • the ratio of the mass of the valve to the surface of the tube of the push rod is between 0.5 and 2 g / cm 2 , and / or the push rod comprises a stop located at a distance from the valve between 2 and 5 mm.
  • the second cavity comprises a liquid-gas state separator device disposed around the valve.
  • the second cavity is of substantially conical shape such that its sectional area decreases from base to top.
  • the second cavity is delimited by the bottom of the first cavity and the lid of the third cavity.
  • the first and third cavities constitute two separate boxes assembled or the first and third cavities constitute compartments of a single box.
  • the package is in the form of a consumer beverage can.
  • FIGS 3a and 3b schematically illustrate a beverage package according to the invention.
  • the beverage package according to the invention comprises a first cavity 10 containing a drinking drink to be cooled, a second cavity 20 forming a heat exchanger and containing a cooling liquid whose evaporation produces the cooling and a third cavity 30 containing means
  • the first and second cavities 20 have a common wall 25 which constitutes a heat exchanger.
  • This common wall advantageously has a conical shape with ribs in order to promote the heat exchange by convection in the first cavity 10.
  • the packaging according to the invention also requires means for triggering the cooling reaction.
  • This reaction is triggered by placing in communication the second 20 and third cavities, thus causing the evaporation of the refrigerant liquid from the second cavity 20, the vapor of which is pumped by a desiccant contained in the third cavity 30.
  • the third cavity 30 is assembled and closed under vacuum, with a vacuum of less than 1 mbar and preferably less than 0.1 mbar.
  • the communication means 40 of the second cavity 20 with the third cavity 30 are integrated in a common wall 25 to said cavities. It is therefore sufficient to create an opening 44 in this common wall 25 to trigger cooling.
  • the communication means 40 are constituted by a non-return valve 42 closing an opening 44 in the common wall 25 of the second and third cavities.
  • This valve 42 has the particularity of being able to open only towards the outside of the third cavity 30, that is towards the inside of the second cavity 20.
  • the valve 42 is able to withstand the pressure exerted by the side of the second cavity 20 and opens by action of a force exerted on the side of the third cavity 30. As an indication, this opening force exerted on the valve 42 may be between only 1 and 10 Newton.
  • FIGS 3a and 3b illustrate more specifically the valve according to the invention respectively in the closed position and in the open position.
  • the cooling reaction is triggered by the displacement of the valve 42 inwardly of the second cavity 20.
  • the nonreturn valve 42 is actuated by a push rod 45 transmitting a displacement of at least a portion of the wall 35 of the third cavity 30 opposite the wall 25 comprising the communication means 40.
  • the deformable wall 35 of the third cavity 30 may be constituted by a dome structure resistant to atmospheric pressure applied to the outside of the third cavity 30 which is assembled and closed under vacuum. This dome structure 35 may nevertheless be inverted under the effect of a force located in the center of the dome, such as a force of 20 to 30 Newton applied on a central surface of 1 cm 2 . This force is mainly used to turn the dome, which causes the push rod to move.
  • the force to open the valve 42 is negligible compared to the deformation force of the dome of the wall 35 of the third cavity 30.
  • FIGS 4 and 5 schematically illustrate a first mode and a second embodiment of the non-return valve according to the invention.
  • the valve 42 consists of a solid lid 43 located on the side of the second cavity 20 and closing an opening 44 of the common wall 25 of the second 20 and third 30 cavities.
  • the solid lid 43 such as a metal disk, has dimensions slightly greater than those of the opening 44 of the common wall 25.
  • the communication means 40 further comprise a seal of the valve 42 constituted by a deformable seal 47, such as vacuum grease or an elastomer, located between the solid lid 43 and the common wall 25 of the second and third cavities.
  • a deformable seal 47 such as vacuum grease or an elastomer
  • the communication means 40 further comprise a seal of the valve 42 consisting of a vacuum-tight and tear-off thin sheet 48, such as an aluminum foil. 2 / 100mm thick, covering the solid cover 43 and glued to the common wall 25 of the second and third cavities.
  • a seal of the valve 42 consisting of a vacuum-tight and tear-off thin sheet 48, such as an aluminum foil. 2 / 100mm thick, covering the solid cover 43 and glued to the common wall 25 of the second and third cavities.
  • the tightness of the valve 42 offers only a low resistance to the pressure exerted by the solid cover 43 when the valve 42 is actuated by the push rod 45. This low additional resistance, of a few hundred grams, simply corresponds to the detachment. deformable seal 47 or tearing of the thin sheet 48.
  • the nonreturn valve 42 constituting the communication means 40 of the second 20 and third 30 cavities of the package according to the invention has the particularity of opening only in one direction, from the third to the second cavity .
  • valve 42 greatly facilitates the manufacture of the beverage package according to the invention by allowing the manipulation of the various elements of the package at atmospheric pressure, without forcing an excessive effort to trigger the reaction. cooling.
  • the valve 42 remains closed if the third cavity 30, with a lid 25 incorporating the valve 42, is exposed to atmospheric pressure while the third cavity is already under vacuum.
  • the one-way opening of the valve 42 has the advantage of supporting the increase of the pressure in the second cavity 20 during the rise in temperature, up to about 80 to 90 ° C, necessary for pasteurization.
  • FIG. 6 schematically illustrates the push rod actuating the valve of the means for placing the beverage package according to the invention in communication.
  • the push rod 45 is advantageously constituted by an open hollow tube thus allowing a circulation of the vapor of the refrigerant liquid inside said rod between the second cavity and the third cavity.
  • Rod 45 can be obtained from an open-tube rolled metal plate.
  • the state separator 50 includes a steam baffle which consists of at least one baffle wall 51 imposing one or more sudden changes in direction to the vapor flow.
  • the vapor molecules have a very low average free path, of the order of a micrometer, which means that they can change direction very quickly.
  • the drops of liquid have a mass such that they are driven by their inertia and thus separated from the gas flow. This mechanism advantageously allows a liquid-gas separation without significant slowdown of the vapor flow and therefore does not require the occupation of a large volume.
  • the state separator device 50 also comprises, in addition, a drops collector 52 making it possible to extend the drops of liquid separated from the gaseous vapor flow towards the bottom of the cavity of the heat exchanger 20.
  • the collector 52 comprises a funnel and at least one droplet flow tube. The funnel may advantageously contribute to forming the baffle 51 of the steam deflector.
  • the flow tube drops of the collector 52 has a length greater than or equal to the pressure drop of the steam in the baffle 51 to prevent the projection of drops through said flow tube.
  • This loss of load is advantageously measured in height of volume of water. If you consider, for example, a steam pressure drop of 1mb (corresponding to 1cm of water column height) the tube will be at least 1 cm long.
  • Such a state separator device nevertheless reaches its limits if the flow velocity of the steam is too great.
  • the pressure difference between the second and third cavities is several tens of millibars, leading to a flow velocity of the vapor such that the state separator device can be saturated by coolant droplets that are entrained with the vapor.
  • the non-return valve 42 is opened in two stages.
  • the lid 43 of the valve 42 In the first position, the lid 43 of the valve 42 is kept in contact with the tube of the push rod 45 by the pressure of the second cavity 20 relative to the third cavity 30.
  • the mass of the cover 43 of the valve is such that the it remains in contact with the push rod 45 and thus limits the passage of the vapor of the coolant towards the third cavity to a circulation in the hollow of the rod by a limited lateral opening.
  • the level of overpressure, therefore of steam flow, for which the complete opening of the valve 42 is operated can be adjusted by the mass of the valve, and more specifically of the solid lid 43.
  • the ratio of the mass of the lid to the surface of the tube of the push rod can advantageously be between about 0.5 and 2 g / cm 2 .
  • a typical overpressure value may be 2 mbar with a push rod tube surface of 0.3 cm 2 , a mass of 0.6g valve cover.
  • this stop 46 is located at a distance of approximately 2 to 5 mm from the end of the rod in contact with the flap cover.
  • the restricted opening of the valve is thus ensured on a height of 2 to 5 mm by the lateral opening of the push rod and the total opening of the valve is provided by the entire section of the tube.
  • the beverage package according to the invention has the advantage of facilitating assembly.
  • FIGS 9 to 11 illustrate various embodiments of such an assembly.
  • the second cavity 20 of the package does not require the production of an additional piece.
  • the second cavity 20, forming the heat exchanger is defined by a space defined between the lid of the third cavity 30 and the bottom of the first cavity 10. The second cavity 20 is thus obtained during the assembly of the third cavity 30 with the first cavity 10, in a sealed manner.
  • the assembly of the first 10 and third cavities is ensured by interlocking two cylinders by bonding or brazing 60.
  • the nesting of the third cavity 30 with the first cavity 10 is performed after having placed the lid 25 closing the desiccant reservoir on the third cavity 30. It is recalled that this lid 25 integrates the communication means 40. This lid can also be glued or brazed 61 inside the cylinder forming the third cavity 30.
  • the first 10 and third 30 cavities of the package constitute compartments of a single box.
  • the separation lid 25 between the second 20 and third 30 cavities is introduced into the box and fixed by gluing or stirring 61 on the walls of the box.
  • the common wall of the first 10 and second cavities 20, forming the heat exchanger is also introduced into the box and fixed by bonding or brazing 60, after the coolant has been introduced.
  • Brazing 60, 61, tin for example, can be achieved by localized heating by induction. Eddy currents are induced by a coil surrounding the assembly area. This coil is powered by a high frequency alternating current. This technique allows a precise and fast assembly.
  • the assembly of the first 10 and third cavities is ensured by crimping 62 of two cylinders.
  • the wall common to the second and third cavity is crimped with the common wall to the first and second cavities, the assembly being completed by a cylindrical skirt 63, bonded or brazed, ensuring the junction between the two cylinders.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical & Material Sciences (AREA)
  • Packages (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
  • Devices For Dispensing Beverages (AREA)
  • Sorption Type Refrigeration Machines (AREA)
  • Apparatuses And Processes For Manufacturing Resistors (AREA)
EP03718902A 2002-02-28 2003-02-20 Emballage auto-refrigerant et dispositif d'enclenchement associe Expired - Lifetime EP1481204B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0202521 2002-02-28
FR0202521A FR2836544B1 (fr) 2002-02-28 2002-02-28 Emballage de boisson auto-refrigerant et dispositif de declenchement associe
PCT/FR2003/000559 WO2003073019A1 (fr) 2002-02-28 2003-02-20 Emballage auto-refrigerant et dispositif de déclenchement associe

Publications (2)

Publication Number Publication Date
EP1481204A1 EP1481204A1 (fr) 2004-12-01
EP1481204B1 true EP1481204B1 (fr) 2006-09-20

Family

ID=27676153

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03718902A Expired - Lifetime EP1481204B1 (fr) 2002-02-28 2003-02-20 Emballage auto-refrigerant et dispositif d'enclenchement associe

Country Status (12)

Country Link
US (1) US7213401B2 (ja)
EP (1) EP1481204B1 (ja)
JP (1) JP2005527762A (ja)
CN (1) CN1332159C (ja)
AT (1) ATE340344T1 (ja)
AU (1) AU2003222937A1 (ja)
CA (1) CA2477185A1 (ja)
DE (1) DE60308486D1 (ja)
FR (1) FR2836544B1 (ja)
RU (1) RU2303208C2 (ja)
WO (1) WO2003073019A1 (ja)
ZA (1) ZA200406557B (ja)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2836544B1 (fr) 2002-02-28 2004-10-15 Thermagen Emballage de boisson auto-refrigerant et dispositif de declenchement associe
EP1562009A1 (en) * 2004-02-06 2005-08-10 Thermagen S.A. Actuating device for self cooling packaging
FR2875587B1 (fr) * 2004-09-20 2007-03-30 Thermagen Sa Emballage auto-refrigerant
KR100805084B1 (ko) * 2006-11-21 2008-02-20 주식회사 위닉스 액체포장용기용 급냉각장치
FR2909753A1 (fr) * 2006-12-12 2008-06-13 Thermagen Sa Dispositif de refroidissement autonome
US8360048B2 (en) * 2009-03-09 2013-01-29 Heat Wave Technologies, Llc Self-heating systems and methods for rapidly heating a comestible substance
US8578926B2 (en) * 2009-03-09 2013-11-12 Heat Wave Technologies, Llc Self-heating systems and methods for rapidly heating a comestible substance
ES2588052T3 (es) 2009-03-20 2016-10-28 Basf Se Materiales estructurales organometálicos en máquinas de enfriamiento/calentamiento
US8033132B1 (en) * 2009-09-26 2011-10-11 Purser Anh V Self-cooling beverage container
CN103629892B (zh) * 2013-11-29 2015-12-16 浙江万宝新能源科技有限公司 一种吸附式制冷容器
EP3093549A1 (en) 2015-05-11 2016-11-16 Basf Se Vehicle comprising an internal combustion engine, at least one storage vessel and a cooling chamber and/or an air condition unit
MX2020009094A (es) 2018-03-02 2021-01-15 Michael Mark Anthony Proceso y aparato de humidificación y deshumidificación para enfriar bebidas y otros productos alimenticios y proceso de fabricación.

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Also Published As

Publication number Publication date
JP2005527762A (ja) 2005-09-15
RU2004128946A (ru) 2005-04-27
WO2003073019A1 (fr) 2003-09-04
US20050160745A1 (en) 2005-07-28
CN1639520A (zh) 2005-07-13
FR2836544A1 (fr) 2003-08-29
ATE340344T1 (de) 2006-10-15
AU2003222937A1 (en) 2003-09-09
DE60308486D1 (de) 2006-11-02
ZA200406557B (en) 2005-06-14
RU2303208C2 (ru) 2007-07-20
FR2836544B1 (fr) 2004-10-15
CA2477185A1 (fr) 2003-09-04
EP1481204A1 (fr) 2004-12-01
US7213401B2 (en) 2007-05-08
CN1332159C (zh) 2007-08-15

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