EP2645024A1 - Récipient pour produit froid, procédé et dispositif destinés au maintien de la température - Google Patents

Récipient pour produit froid, procédé et dispositif destinés au maintien de la température Download PDF

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Publication number
EP2645024A1
EP2645024A1 EP12005249.3A EP12005249A EP2645024A1 EP 2645024 A1 EP2645024 A1 EP 2645024A1 EP 12005249 A EP12005249 A EP 12005249A EP 2645024 A1 EP2645024 A1 EP 2645024A1
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EP
European Patent Office
Prior art keywords
coolant
container
region
opening
stacking
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.)
Withdrawn
Application number
EP12005249.3A
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German (de)
English (en)
Inventor
Rayc Pallmann
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.)
Linde GmbH
Original Assignee
Linde GmbH
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 Linde GmbH filed Critical Linde GmbH
Publication of EP2645024A1 publication Critical patent/EP2645024A1/fr
Withdrawn legal-status Critical Current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
    • F25D3/00—Devices using other cold materials; Devices using cold-storage bodies
    • F25D3/12—Devices using other cold materials; Devices using cold-storage bodies using solidified gases, e.g. carbon-dioxide snow
    • F25D3/125—Movable containers

Definitions

  • the invention relates to a coolant container, a device and a method for maintaining the temperature of goods, in particular refrigerated foods.
  • the temperature maintenance for chilled food is necessary to maintain the quality, since in many cases a desired storage temperature must not be exceeded. This also applies in particular to food transport, with criteria generally important for transport, such as low transport weight and independence from a permanent energy supply. In addition, the demands on the flexibility of such a temperature attitude with respect to the temperature level and the storage life have increased sharply.
  • containers are used for keeping the temperature with dry ice, but they can only fulfill the task of keeping the temperature within a tight time limit at a defined temperature level.
  • a dosage of the dry ice adapted to the desired storage time is difficult because of its availability in blocks.
  • the influence of the melt on the chilled goods can lead to undesirable impairments of the quality of the food.
  • Another method for keeping temperature is the cooling using carbon dioxide snow.
  • This method is for example in the from the US 5,511,379 known cooling device used.
  • liquid carbon dioxide is converted into carbon dioxide snow and carbon dioxide gas through the use of a nozzle / baffle plate system.
  • the cooling takes place by the energy requirement of the occurring sublimation of the carbon dioxide snow and by the resulting cold gas.
  • a device for maintaining the temperature of refrigerated food with a dual-chamber system which consists of a coolant chamber and an outer chamber.
  • the outer chamber in this case has a boundary surface whose permeability for coolant sublime variable is, wherein this boundary surface separates the dual-chamber system from a charge chamber, which receives food to be cooled.
  • the handling of such a dual-chamber system is perceived as relatively expensive.
  • the present invention has for its object to provide a device and a method for keeping temperature of refrigerated food available, which is energetically used in a favorable manner and easy and safe to handle.
  • coolant container which has a coolant chamber with a single opening and which is stackable, a simple, robust system that is easy and safe to handle for an operator is provided, which provides economical cooling of goods, in particular food, in rooms, thermal containers , Refrigerated vehicles or the like without further, active cooling allows.
  • Several coolant tanks can be filled and stacked to be ready for use.
  • the means for stacking are adapted to a stacking grid of stacking boxes, in particular euro containers, there are a variety of possible uses and facilities for use with widespread, standardized refrigerated and stored goods containers.
  • closure means preferably comprises a pressure relief device.
  • the coolant container according to the invention has a conduit means which can be fluid-tightly coupled to the opening of the coolant container, by means of which coolant can be discharged via the opening into the first region of the coolant container, and coolant vapor or exhaust gas via the opening from the second region of the coolant container.
  • the conduit means is preferably formed as a tube or pipe.
  • the conduit device it is particularly preferred for the conduit device to have a discharge line for draining off coolant vapor and a supply line for supplying coolant flowing concentrically within the latter, in particular substantially concentrically therewith.
  • a discharge line for draining off coolant vapor and a supply line for supplying coolant flowing concentrically within the latter, in particular substantially concentrically therewith.
  • the end of the discharge line can be coupled in a fluid-tight manner with a nozzle provided at the opening, the end region of the supply line projecting axially beyond the end of the discharge line and extending through the second region of the coolant container into the first region of the coolant container.
  • the end region of the supply line extending into the first region of the coolant container is formed with at least one nozzle in order to introduce coolant into the coolant container.
  • a plurality of such nozzles are provided, which cooperate with baffles formed in the first region. This makes it possible to provide a particularly effective conversion of coolant into coolant snow.
  • a wire mesh is formed, which is impermeable to coolant snow, and permeable to coolant vapor.
  • the wire mesh is formed on a perforated plate.
  • a perforated plate can be fastened in a simple manner to the inside of the coolant container, and at the same time represents a stabilizing element for the coolant container.
  • the size of the holes of the perforated plate can be selected depending on the concrete specifications.
  • Perforated plate and wire mesh can be connected to each other in particular by means of spot welding.
  • coolant sublimate arising from the opening in the coolant container be able to be discharged from the coolant container via the opening.
  • coolant can thus be introduced into the coolant container via a single opening, as well as coolant vapor initially arising and coolant sublimate which can subsequently be used for cooling be removed. This represents a significant design simplification over conventional solutions.
  • the coolant container can be arranged in an openable and closable thermos container.
  • a charge chamber may be formed, can be stored in the good to be cooled.
  • the thermal container is opened, the coolant container filled with coolant used and closed the thermal container again after any applied closure means for (temporarily) closing the opening in the coolant tank were removed or opened.
  • coolant sublimation resulting from sublimation of the coolant snow can pass over the wire mesh from the first region into the second region of the coolant tank and from there via the opening into the charge chamber.
  • a first preferred embodiment of the coolant container according to the invention is designated 10 in the figures.
  • the coolant container 10 has a first region 12 and a second region 14.
  • the regions 12, 14 are separated from one another by means of a perforated plate 17 and fluid-impermeable wall elements 19 (see FIG. 3 ).
  • the holes 17a of the perforated plate 17 are each covered by a wire mesh or fleece 16.
  • the wire used for this purpose is preferably a stainless steel wire.
  • the elements 14, 14a, 16 and optionally 19 thus form a subdivision of the coolant container 10 to provide the first and the second region.
  • the coolant container 10 has an opening 18 on one side. At the opening 18 designed as a hose conduit means 20 can be connected fluid-tight. Conveniently, a coupling piece 22 is provided for this purpose in the opening 18.
  • the hose 20 has a discharge line 21 and a supply line 24.
  • the derivative 21 is formed by the wall of the tube 20, which can be coupled to the nozzle 22.
  • the supply line 24 is inserted through an opening 20a in the wall of the hose 20 therein, and extends within the hose 20 substantially in parallel therewith, i. in the axial direction of the hose.
  • the end of the supply line 24 projects beyond the end of the discharge line or the hose 20 connected to the connecting piece 22 and extends through the connecting piece 22 via the second region 14 into the first region 12 of the coolant reservoir 10.
  • the end region of the supply line 24 is formed with a number of nozzles 26.
  • one of the wall elements 19 is formed with an opening 13, which is arranged coaxially or in alignment with the opening 18 or the connection 22.
  • a sealing lip 28 enclosing this is arranged on the outside of the feed line 24, which seals the opening 13 in positioning the end of the feed line in the first region 12.
  • this is formed with two handle elements 30, 32, so that a user can hold the hose 20 via the nozzle 22 in such a way with the coolant container 10 by holding these handle elements that the tube 20 fluid-tight against the nozzle 22 and the End region of the supply line 24 is arranged under sealing of the hole 13 in the first region of the coolant container 10.
  • Coolant injected via the feed line 24 bounces, after passage through the nozzles 26, on baffles 34 provided in the first region 12, whereby coolant snow and coolant vapor are formed.
  • carbon dioxide is used as the coolant to form carbon dioxide snow and carbon dioxide vapor.
  • the resulting coolant vapor (gaseous carbon dioxide) flows through the wire mesh 16 from the first region 12 into the second region 14 and from there via the hole 18 or the nozzle 22 through the tube 20 serving as the exhaust gas line an extraction of the refrigerant vapor, for example by means of a (not shown) blower.
  • the hose 20 expediently discharges the coolant vapor arising during the filling of the coolant container 10 out of the building in which the device is used.
  • the wall elements 19 and the wire mesh 16 simultaneously ensure that the coolant snow remains completely in the first region 12 and that no losses occur.
  • the tube 20 can be removed from the coolant reservoir 10.
  • a mechanism can be provided which seals the opening 13 even in the absence of the sealing lip 28.
  • the opening 18 or the nozzle 22 by a plug, a cap or the like can be closed as a closure means in the context of the invention.
  • a locking which prevents falling of the closure means even with overpressure in the coolant tank 10, and / or a pressure relief valve or the like as a pressure relief means, which limit the build-up of an overpressure in the coolant tank 10 may be provided.
  • the coolant tank 10 is formed with a box member 10 a and a lid 10 b.
  • the box element 10a has on the underside a plurality of elevations 11, while the cover 10b has a plurality of recesses 15.
  • the recesses 15 are formed at locations corresponding to the elevations 11. Inner diameter of the recesses 15 are slightly larger than the outer diameter of the elevations eleventh
  • the coolant tank 10 can be set aside until its use.
  • the depressions 15 of a coolant container 10 form a suitable receptacle for the elevations 11 of another coolant container 10 stacked thereon in such a way that lateral displacement of coolant containers 10 stacked on one another is prevented or limited from one another.
  • the recesses 15 and elevations 11 form means for stacking in the context of the invention.
  • FIG. 2 A possible use state of the coolant container 10 is in FIG. 2 shown, in which case the coolant container 10 is shown disposed within a thermo container 40.
  • the thermal container 40 has a shoulder 36 on which the coolant container 10 rests.
  • the thermal container 40 further has a charge chamber 38, which contains the material to be cooled, in particular food.
  • the thermal container 40 has a door 42, by means of which it can be opened and closed.
  • the loading of the thermal container 40 with the coolant container 10 takes place - either immediately after filling the first region 12 with coolant or after a rest period on a container stack-conveniently with the door open 42.
  • the coolant container 10 is placed on the shoulder 36 in the thermal container 40. Thereafter, if any existing closure means are removed.
  • thermos container 40 After loading the thermos container 40 with the coolant container 10 and closing the door 42 due to the prevailing pressure and temperature conditions, a sublimation of the coolant snow within the first region 12. This resulting sublimate (coolant gas) also escapes through the wire mesh 16 initially in the second region 14th , and then also via the opening 18 and the nozzle 22 in the charge chamber 38 of the thermo container 40th
  • FIG. 3 Preferred structural details of a coolant container 10 according to the invention are shown in FIG FIG. 3 shown.
  • the coolant container 10 has a box element 10a and a cover element 10b. In a side wall of the box member 10a, the opening 18 is formed. On the bottom of the box member 10a, a C-shaped support sheet 10c is formed.
  • the perforated plate 17 with wire mesh 16 provided thereon can be fastened to this metal sheet 10c, with the first and the second region 12, 14 of the coolant chamber 10 being definable by appropriate arrangement of sheet metal 10c and perforated plate 17.
  • the wall elements 19 are further fastened. Shown is only the wall member 19, in which the opening 18, through which the end portion of the conduit means is insertable into the second chamber is formed.
  • the first area 12 is relative to the second area 14 of the coolant chamber 10 definable.
  • another C-sheet 10e can be provided between perforated plate 17 and cover element 10b.
  • the nozzle 22 preferably consists of a brass ring 22a, which can be introduced directly into the opening 18, and a fixable on this nozzle element 22b. Further illustrated elements by means of z. B. the holder of the coolant chamber 10 is accomplished in the thermal container 40, are not explained in detail.
  • the elevations 11 and depressions 15 are formed in this embodiment by appropriate shaping of the bottom of the box member 10 a and the lid 10 b of the coolant tank 10, as in Fig. 3 shown schematically.
  • the elevations 11 may be formed in a variant as screwed or glued or fastened in a comparable manner feet.
  • the positive connection with the elevations 11 can also be realized through the upper edge of the box element 10a of the coolant container 10 and the cover element 10b can be correspondingly smaller in order to find space within the edge and not shown in detail Console elements, which protrude from the inside of the box member 10a, to rest.
  • an outwardly extending (di, downwardly from the bottom), running parallel to the edge, continuous or interrupted bead can be formed in the bottom of the box member 10a or can project downwardly Angle plates may be provided, which realizes or realize the positive connection with the edge.
  • FIGS. 4 and 5 another embodiment of a coolant container 10 according to the invention is shown. It shows Fig. 4 the coolant tank 10 without internals and shows Fig. 5 a filling device 50 for installation in a box element of the coolant tank.
  • This embodiment is a modification of the embodiment described above and has the same essential characteristics, applications and effects as already described.
  • the coolant tank 10 of the present embodiment is formed predominantly of plastic, for example by injection molding.
  • the coolant tank 10 has a box member 10a and a lid 10b.
  • the box member 10a has an extended upper edge 44, so that within the edge 44, a support for the lid 10b is formed.
  • Rods 45 extend through holes in the rim 44 across the lid 10b and hold it downwardly.
  • Formed on the box member 10a are a plurality of laterally projecting brackets 46 which are supported upwardly by struts 47 against a respective side wall of the box member 10a and by stiffening ribs 48 against the respective side wall and rim 44.
  • the brackets 48 are set back from the bottom surface of the box member 10a by an amount less than a distance from an upper edge of the upper edge 44 to the rods 45.
  • webs 49 are formed on the side walls of the box member 10a, which extend to the bottom of the box member 10a.
  • the webs 49 define with the box element 10a a total width, which is slightly smaller than an inner dimension of the upper edge 44 in the region of the bottom of the box member 10a.
  • the coolant tank 10 of this embodiment is stackable in such a manner that the brackets 46 rest on the upper edge 44 of the box member 10a with a clearance between the bottom of the box member 10a and the rods 45 holding the lid 10b, and the Webs 49 opposite respective inner sides of the upper edge 44.
  • the brackets 46, the webs 49 and the upper edge 44 of the box member 10a are means for stacking the coolant tank 10. It is understood that the webs 49 may be omitted if the box member 10a per se has a width sufficient to an excessive to exclude lateral play within the edge 44.
  • a filling device 50 is shown, which is intended for installation in the box member 10a of this embodiment.
  • the filling device 50 has a plate 52 and a front side thereof projecting at right angles holding plate 54.
  • the holding plate 54 has a plurality of bores 54a and an opening 54b.
  • the filling device 50 can be attached to the holding plate 54 from the inside to a side wall of the box member 10 a for assembling the coolant container 10 and attached by the holes 54 a by means not shown fastening elements (such as screws or the like) on the side wall.
  • the opening 54b corresponds in diameter and position to the opening 18 in the side wall of the box element 10a (FIG. Fig. 4 ).
  • the holding plate 54 carries the nozzle 22, which is formed as in the previous embodiment with a sealing ring 22a and an adapter for holding the filling gun and for sucking the resulting CO2 gas and in the assembled state through the opening 18 of the box member 10a (FIG. Fig. 4 ) protrudes outwards.
  • the plate 52 forms a subdivision in the mounted state, which subdivides the interior of the box element 10a into a lower region and an upper region, which are to be understood as first or second region in the sense of the invention.
  • the plate 52 has a plurality of openings 52a.
  • fabric elements 53 are inserted from a stainless steel wire mesh.
  • the first region is not a region separated from the second region on all sides, but is given only an upper limit by the plate 52.
  • the fabric elements 53 serve to retain the dry ice snow in the first (lower) region of the box element 10a during the filling process.
  • the coolant tank 10 is adapted to dimensions or a stack grid of standard stacking boxes such as so-called Euro currentlyern (E1, E2, E3 boxes).
  • Euro societyern E1, E2, E3 boxes
  • Such stacking boxes are widely used commercially, especially (but not only) in the food trade. They are available in a closed version as well as in a version with lattice-like perforated side walls and floors.
  • the stacking means are designed so that they fit into an edge or edge bead formed on an upper side of a Euro container.
  • the coolant reservoir 10 can be placed on the upper edge or edge bead of the Euro container while being secured against lateral slippage.
  • a stack consisting of stacking crates and one or more coolant containers 10 can be loaded into a thermo container or a refrigerated truck, without requiring additional cooling. It is also possible to have a stack consisting of stacking crates and one or more coolant containers 10 in a cooled cooling space initially with the opening 18 closed or the connecting piece 22 closed, and to open or remove the corresponding closure means only when being loaded into a thermo container or refrigerated vehicle. If the coolant tank 10 is adapted to the top and bottom of the stacking boxes, and coolant containers 10 can be arranged between stacking boxes.
  • coolant reservoir 10 may be adapted to any other form of refrigerated goods container such as stacking crates according to standards of other countries or markets, grid boxes or the like.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
EP12005249.3A 2012-03-29 2012-07-17 Récipient pour produit froid, procédé et dispositif destinés au maintien de la température Withdrawn EP2645024A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201210006478 DE102012006478A1 (de) 2012-03-29 2012-03-29 Kühlmittelbehälter, Vorrichtung und Verfahren zur Temperaturhaltung

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EP2645024A1 true EP2645024A1 (fr) 2013-10-02

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EP12005249.3A Withdrawn EP2645024A1 (fr) 2012-03-29 2012-07-17 Récipient pour produit froid, procédé et dispositif destinés au maintien de la température

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DE (1) DE102012006478A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015009647B3 (de) * 2015-07-24 2016-10-06 Messer France S.A.S Füllvorrichtung zum Befüllen eines einem Kühlbehälter zugeordneten Kältemittel-Aufnahmefachs mit einem kryogenen Kältemittel
DE102015009645A1 (de) 2015-07-24 2017-01-26 Messer France S.A.S Füllvorrichtung zum Befüllen eines einem Kühlbehälter zugeordneten Kältemittel-Aufnahmefachs mit einem kryogenen Kältemittel

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2716021A1 (de) * 1977-04-09 1978-10-12 Ahlmann Sanitaer U Kunststofft Kuehlvorrichtung
US5511379A (en) 1993-06-23 1996-04-30 Carboxyque Francaise Process for the preservation of products at low temperature in an insulated chamber, installation for practicing the process, insulated chamber and container for such a chamber
EP0823600A2 (fr) * 1996-07-30 1998-02-11 Olivo Conteneur isotherme avec réserve de frigories
EP1048228B1 (fr) 1999-04-30 2004-06-16 TV Kohlensäure, Technik und Vertrieb GmbH + Co. Appareil et procédé de conservation au froid d'aliments
EP1724538A1 (fr) * 2005-05-20 2006-11-22 Olivo Système logistique pour le transport de produits frais ou surgelés

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2716021A1 (de) * 1977-04-09 1978-10-12 Ahlmann Sanitaer U Kunststofft Kuehlvorrichtung
US5511379A (en) 1993-06-23 1996-04-30 Carboxyque Francaise Process for the preservation of products at low temperature in an insulated chamber, installation for practicing the process, insulated chamber and container for such a chamber
EP0823600A2 (fr) * 1996-07-30 1998-02-11 Olivo Conteneur isotherme avec réserve de frigories
EP1048228B1 (fr) 1999-04-30 2004-06-16 TV Kohlensäure, Technik und Vertrieb GmbH + Co. Appareil et procédé de conservation au froid d'aliments
EP1724538A1 (fr) * 2005-05-20 2006-11-22 Olivo Système logistique pour le transport de produits frais ou surgelés

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015009647B3 (de) * 2015-07-24 2016-10-06 Messer France S.A.S Füllvorrichtung zum Befüllen eines einem Kühlbehälter zugeordneten Kältemittel-Aufnahmefachs mit einem kryogenen Kältemittel
DE102015009645A1 (de) 2015-07-24 2017-01-26 Messer France S.A.S Füllvorrichtung zum Befüllen eines einem Kühlbehälter zugeordneten Kältemittel-Aufnahmefachs mit einem kryogenen Kältemittel
WO2017017030A1 (fr) 2015-07-24 2017-02-02 Messer France S.A.S. Dispositif permettant de remplir un compartiment à réfrigérant, attribué à un contenant frigorifique, avec un agent cryogénique
DE102015009645B4 (de) 2015-07-24 2020-01-16 Messer France S.A.S Füllvorrichtung zum Befüllen eines einem Kühlbehälter zugeordneten Kältemittel-Aufnahmefachs mit einem kryogenen Kältemittel

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