EP3051239A1 - Verfahren und Vielzweckbehälter zum Transport von Gütern, die unterschiedliche Temperaturen während ihres Transports erfordern - Google Patents

Verfahren und Vielzweckbehälter zum Transport von Gütern, die unterschiedliche Temperaturen während ihres Transports erfordern Download PDF

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Publication number
EP3051239A1
EP3051239A1 EP15153078.9A EP15153078A EP3051239A1 EP 3051239 A1 EP3051239 A1 EP 3051239A1 EP 15153078 A EP15153078 A EP 15153078A EP 3051239 A1 EP3051239 A1 EP 3051239A1
Authority
EP
European Patent Office
Prior art keywords
cartridge
container
housing
transport
goods
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Withdrawn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
EP15153078.9A
Other languages
English (en)
French (fr)
Inventor
Dr. Franz Lürken
Helmut Henrich
Marcel Brouns
Robert Voss
Marc Sporing
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.)
Air Liquide Deutschland GmbH
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
Original Assignee
Air Liquide Deutschland GmbH
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
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 Air Liquide Deutschland GmbH, LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude filed Critical Air Liquide Deutschland GmbH
Priority to EP15153078.9A priority Critical patent/EP3051239A1/de
Publication of EP3051239A1 publication Critical patent/EP3051239A1/de
Withdrawn legal-status Critical Current

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    • 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
    • F25D3/14—Devices using other cold materials; Devices using cold-storage bodies using solidified gases, e.g. carbon-dioxide snow portable, i.e. adapted to be carried personally

Definitions

  • the present invention relates to a transport container for transporting heat-sensitive goods requiring cooling during their transport and storage. So far many differently equipped cooling containers are used to transport heat-sensitive products, especially to organize the transport from storage and distribution centers to groceries and other places, where cooled products are sold to final customers.
  • the present invention especially relates to cooling containers having a special chamber, in the following named cartridge, which can be filled with carbon dioxide snow (dry ice) to provide the necessary cold to keep the interior of the container on a required low temperature level for a certain period of time.
  • the cartridge can be filled with dry ice by introducing liquid carbon dioxide in a filling process, which converts into dry ice and gaseous carbon dioxide during the filling process. Another method is to fill the cartridge with prefabricated dry ice in special enclosures or bags.
  • a container for transporting goods requiring cooling during their transport comprises:
  • a multipurpose container makes use of the fact that the transfer of cold from a cartridge filled with carbon dioxide snow can be used and influenced in different ways. It was found that cold can be transferred by radiation, convection and/or conductivity. This means that it is well possible to establish by active or passive means two or more separate volumes in a transport container, in which different temperatures can be maintained during a transport. This can be achieved by one or more of the above given features. If the cartridge is placed somewhere in the container it can be used to establish an upper storage volume and a lower storage volume separated by the cartridge. If the cartridge is not fixed, but can be placed at different heights in the housing, the upper storage volume and the lower storage volume become variable. Already in this situation a certain temperature profile in the container will occur due to physical laws.
  • the one of the storage volume becomes colder than the other storage volume due to the fact that the carbon dioxide snow rests on the bottom of the cartridge and that colder gas is heavier than warmer gas of a given gas mixture of gases.
  • the temperature in the storage volumes also depends on their outer surfaces, which may lose cold to the environment.
  • the temperatures in adjacent volumes of the cartridge can also be influenced by using different thermal insulations on the upper and the lower side of the cartridge.
  • the container according to the present invention therefore can contain layers of thermal insulation of different thicknesses, which can be used to provide the cartridge with any required thermal insulation on the upper or lower side. It is also possible to use such insulation layers only during filling of the cartridge to influence the amount of dry ice at different locations within the cartridge and to remove at least parts of the insulation after having terminated the filling process.
  • thermoly insulating separating wall it is possible to use at least one thermally insulating separating wall to divide the interior of the housing into two separate volumes.
  • the quality of such insulation is decisive for the temperatures above and below such a separating wall.
  • the exhaust gas of the cartridge for influencing the temperature profile in the container.
  • One of the possibilities is to use at least one outlet nozzle for blowing the exhaust of carbon dioxide in one or more predetermined directions or receiving storage volumes.
  • a flow path can be designed to bring cold first to the colder volume and afterwards guides the gas through the volume of higher temperature. This way most of the cold from the carbon dioxide snow can be used for keeping the transported goods cool.
  • further active ventilation means to guide exhausted carbon dioxide from the cartridge on a certain exhaust gas flow path through the housing to a housing outlet.
  • the container comprises only one outer door, but at least one additional inner door, preferably two, to separately close one or more of the different storage volumes. This allows to fill one storage volume first, to close it, and then to fill the other volume(s). Especially for deep frozen goods, which may not be warmed up above a certain temperature during the whole transport, this feature is advantageous.
  • the container comprises an active wall containing active ventilation equipment, in particular a battery accumulator, a motor, a fan and a control circuit.
  • active ventilation equipment in particular a battery accumulator, a motor, a fan and a control circuit.
  • a wall can either be used to separate a certain volume from the rest of the container and to blow cold gas into this volume in a controlled way to maintain a certain temperature, or it can be used to simply produce a convection of gas in a separate volume, in which case the wall needs not to separate two volumes from each other, but only holds the ventilation equipment. Nevertheless, such ventilation equipment can be used to maintain a certain homogeneous distribution with a controlled temperature in a separate volume of the container.
  • the housing is formed by a light weight inner housing with only thin or without thermal insulation, in particular for air freight, and an outer housing for including the inner housing, in particular for ground transportation.
  • This design allows transporting heat-sensitive goods, especially also medical goods and drugs, by airplane and on the ground without loading them from one container to another.
  • cooling containers for airfreight have to be of light weight (for example made from Aluminum), but need not to be very stable and do not require extensive thermal insulation as the temperature of the environment during the flight is pretty low.
  • ground transportation of goods requires more stable containers and a more extensive thermal insulation as the temperatures of the environment may be high and the container may stand for a while in the sunshine.
  • the cartridge is designed to be filled with dry ice through the access, when the outer door is open. This is especially helpful for the case that the dry ice is not produced by filling liquid carbon dioxide into the cartridge, but is prefabricated and simply placed in the cartridge as a block or in a perforated bag or the like.
  • Systems to prefabricate bags with a certain amount of dry ice are for example described in EP 1 186 842 B1 .
  • exhaust gas from the cartridge shall be used to maintain a certain flow path and if an outlet nozzle is used for this purpose, it is advantageous according to the present invention that the cartridge is designed (when filled and closed) to being stable under inner pressure up to at least 2 bars, preferably up to 4 bars. This allows using withhold exhaust gas in the cartridge as a kind of power source to maintain a certain flow and temperature profile in the container.
  • the cartridge contains a cyclone tubing for separating carbon dioxide snow and gas during a filling process with liquid carbon dioxide through a filling coupling.
  • liquid carbon dioxide is fed into a cartridge via a filling gun having at least one filling nozzle at its filling end.
  • the filling end can be surrounded by a sucking channel with sucking openings to remove excess gaseous carbon dioxide from the cartridge directly or after having guided it through the container for cooling it completely down.
  • the filling end has to be essentially straight, but the direction of the filling nozzle can point in any direction. Usually, it points in a perpendicular direction to the filling end, preferably sideward, to blow the snow into the cartridge.
  • snow and gas form a turbulent mixture, what requires the use of filtering surfaces to keep the snow in the cartridge and only allow the gas to flow to an outlet.
  • the present invention also relates to the injection and distribution of carbon dioxide snow in the cartridge.
  • the cartridge has a distributor with a receiving end for introducing a usual filling end of a filling gun.
  • the filling end with its filling nozzle is introduced into the receiving end for the filling process.
  • the distributor is formed as to force the resulting carbon dioxide snow and carbon dioxide gas into a curved motion. In a preferred embodiment this is done by a curved tubing, in particular a ring-shaped channel.
  • the distributor separates carbon dioxide snow and carbon dioxide gas from each other due to centrifugal forces or forces of inertia, respectively.
  • At a radially outer part along the curved tubing there are provided one or more outer openings for ejecting the separated carbon dioxide snow into the cartridge.
  • At a downstream end of the distributor preferably a central suction opening is provided that collects gaseous carbon dioxide from the cartridge and the curved tubing to guide it to an container outlet or back to the suction channel of the filling end.
  • the distributor allows to better distribute the dry ice in the cartridge and to reduce the filling time. It also makes it easier to completely close the cartridge after filling to establish a certain overpressure in the cartridge, which can be used to blow carbon dioxide gas through an outlet nozzle.
  • a multipurpose container according to the present invention needs not to be used for transporting goods with different temperatures. It also allows a use with only one temperature in the whole container.
  • the described embodiments also allow to homogeneously distributing the cold in the container and/or to form only one chamber, for example by placing the cartridge in an uppermost or lowermost position, and to take profit from many of the described advantages also for the case that only one kind of goods has to be transported.
  • the present invention also relates to a method for jointly transporting different goods requiring different temperatures during a transport in at least two separate storage volumes in the interior of a housing of a container.
  • the method comprises the following steps:
  • the method according to the invention does not require different containers for each temperature respectively kind of good to be transported, but allows to use one container only for different goods requiring different transport temperatures.
  • the existence of at least two separate storage volumes in a container as described above allows in a first step to place different goods in different storage volumes. These goods must already have the required temperatures and have not to be further cooled down in the container. It is only necessary to maintain the different temperatures in the different storage volumes, what only requires balancing the loss of cold of each volume to the environment by cold taken from the cartridge with dry ice.
  • logistic systems try to avoid that transport containers are exposed to environmental temperatures, which are lower than a required temperature in the container as this cannot be balanced internally. If necessary, the containers are transported in heated transport vehicles so that only the situation of higher environmental temperatures has to be considered.
  • the distribution of cold in the container to simply balance any loss of cold from one of the storage volumes can be done by one or more of the described measures.
  • One of the measures is to maintain an overpressure of carbon dioxide gas (which is exhausted from the dry ice) in the cartridge during the transport and to release gaseous carbon dioxide through at least one outlet nozzle, preferably a venturi nozzle, into the interior of the container and from there to a housing outlet such that the resulting gas flow path in connection with other properties of the cartridge and the container maintains different temperatures in the separate volumes.
  • carbon dioxide gas which is exhausted from the dry ice
  • the cold transfer and distribution by conductivity, radiation, and/or convection from the cartridge into the separate volumes is influenced by different location and/or inhomogeneity of the insulation of the cartridge.
  • a combination of placing the cartridge between two storage volumes and to use different thermal insulations versus each volume can establish and maintain different temperatures in the volumes.
  • Another method according to the invention is to control the cold transfer and distribution by active equipment, in particular at least one fan driven by a motor supplied by a battery accumulator and controlled by a control circuit. This allows maintaining desired temperatures even under changing environmental conditions.
  • the filling step can be adapted to the transport requirements and be done at the same time with the loading of goods. This allows treating the at least one prefabricated bag of dry ice during commissioning of the certain container as any other goods and picking and carrying it together with the other goods to the container, where the goods are distributed to the separate storage volumes according to their required transport temperatures and the prefabricated bag is placed in the cartridge.
  • Preferred embodiments, features and examples of the invention are shown in the drawing. However, the invention is not restricted to these embodiments, and the features shown in the different figures can be applied according to the invention separately or in combination with each other.
  • Fig. 1 shows a container 1 to be transported in transport vehicles 30 according to the invention.
  • the container 1 has an outer housing 2 and an inner housing 3.
  • the inner housing 3 with the interior 4 of the container 1 can be transported separately, for example in an airplane, while the outer housing 2 is attached for ground transportation. This is especially helpful for transporting heat-sensitive medical goods.
  • the housing 2, 3 can be made as one part.
  • the container 1 has an access 8 to the interior 4, which can be closed by an outer door 5.
  • a cartridge 10 to be filled with dry ice 22 is placeable in the interior 4 of the container 1 in a variable manner.
  • the container 1 has either a certain kind of holder 17 (not shown in fig.
  • the cartridge 10 has in this embodiment a filling coupling, which allows filling with carbon dioxide snow 22 through the access 8, when the outer door 5 is open.
  • An outlet nozzle 11 can blow exhaust gas (CO2) into the upper storage volume 6 and produce an exhaust gas flow path 21 from the outlet nozzle 11 to a housing outlet 20.
  • CO2 exhaust gas
  • Such an exhaust gas flow path 21 can be designed more complicated by opening, channels and other flow influencing means in the container 1 to establish a desired temperature profile.
  • the cartridge 10 has a first surface area 12 and a second surface area 13, which both are important for the transfer of cold to the adjacent volumes.
  • the cold transfer can be increased by metallic surfaces, possibly having ribs or other kinds of profiles, while thermal insulations can reduce the cold transfer via the surfaces. This gives a lot of flexibility to adapt the container to different desired temperature profiles by adding or removing thermal insulations 14, 15 (not shown in fig. 1 ) or profiled metallic surfaces.
  • Fig. 2 shows another embodiment of the invention, which is similar to that of fig. 1 concerning the housing 2, 3 of the container 1 and the outer door 5.
  • the cartridge 10 of fig. 1 is taken away, but would be present, when using the container 1 for transport purposes.
  • Fig. 2 shows an inner door 23, which can be used to close a partial volume, in this case an upper storage volume 6, after filling to avoid warming up already filled in goods.
  • the housing 2, 3 is provided with means to add inner doors 23 of a required size and number according to the intended use of different parts of the interior 4 of the container.
  • Fig. 2 as well as fig 4 in more detail also show an active wall 19, which is inserted into one of the insertion grooves 18.
  • the active wall 19 comprises in the present example a battery accumulator 24, a motor 25, a fan 26, and a control circuit 27.
  • the body of the active wall 19 may be made of a grid or other material allowing a gas flow through the active wall 19.
  • Such an active wall 19 or other ventilation equipment allows to homogenize the temperature even in bigger storage volumes and to support the transfer of cold from the cartridge 10 into a storage volume.
  • a thermally insulating (passive) wall 16 can be inserted at any desired horizontal position.
  • Fig. 3 shows in more detail the cartridge 10 of fig. 1 .
  • the first surface area 12 is provided with a first thermal insulation 14, and the second surface area 13 is provided with a second (possibly different) thermal insulation 15.
  • Two outlet nozzles 11 allow blowing exhaust carbon dioxide into a volume above the cartridge 10.
  • a cyclone tubing, 28 which is shown in fig. 5 in more detail, allows a fast filling of the cartridge with dry ice 22.
  • a filling gun 31 connected to a supply system 32 is inserted with a filling end 40 into the filling coupling 9 of the cartridge 10.
  • the cartridge 10 can have an inner door (not shown in fig. 3 ) to place bags 29 filled with dry ice in the cartridge.
  • FIG. 5 shows an exemplary downstream section of a filling gun 31 and an exemplary distributor 43.
  • a filling end 40 of said filling gun 31 may comprise at least one filling nozzle 41.
  • the filling end 40 is surrounded by at least one, preferably several sucking openings 42.
  • the filling end 40 has to be inserted into the distributor 43 being part of said cartridge 10.
  • the filling end 40 has to be moved into a receiving end 44 of distributor 43 until the at least one filling nozzle 41 is positioned within a curved channel 45 of distributor 43, wherein the at least one nozzle 41 points in a circumferential direction of said curved channel 45.
  • the curved channel 45 may be a ring-shaped tubing.
  • the accelerated carbon dioxide snow accumulates in an outer part, whereas gaseous carbon dioxide accumulates in an inner part of the curved channel 45. This is due to the snow experiencing a higher centrifugal force or force of inertia, respectively, compared to the gas.
  • outer openings 46 may be positioned. The accelerated carbon dioxide snow and some gaseous carbon dioxide are ejected through the outer openings 46.
  • the present invention can well be understood as a kit for flexibly establishing a container according to any required transport situation.
  • the kit can contain different cartridges to be filled with liquid carbon dioxide or with prefabricated bags containing dry ice. It also can contain different active walls or other ventilation equipment as well as different thermal insulations or profiled metallic sheets for the cartridge. Thermally insulating layers or sheets can also be used as horizontal (passive) walls to define separate storage volumes. They can be inserted wherever required in the container. Moreover, all equipment can be placed at different heights in the container, and finally, the housing can be made of two parts for transportation by airplane or vehicle.
  • the present invention allows to flexibly using transport containers cooled by dry ice for different kinds and amounts of goods to be transported. It particularly allows adapting containers to different transport tasks and transporting goods, especially fresh food and deep frozen food, with different transport temperatures in the same container.

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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)
  • Packages (AREA)
EP15153078.9A 2015-01-29 2015-01-29 Verfahren und Vielzweckbehälter zum Transport von Gütern, die unterschiedliche Temperaturen während ihres Transports erfordern Withdrawn EP3051239A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP15153078.9A EP3051239A1 (de) 2015-01-29 2015-01-29 Verfahren und Vielzweckbehälter zum Transport von Gütern, die unterschiedliche Temperaturen während ihres Transports erfordern

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP15153078.9A EP3051239A1 (de) 2015-01-29 2015-01-29 Verfahren und Vielzweckbehälter zum Transport von Gütern, die unterschiedliche Temperaturen während ihres Transports erfordern

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EP3051239A1 true EP3051239A1 (de) 2016-08-03

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EP15153078.9A Withdrawn EP3051239A1 (de) 2015-01-29 2015-01-29 Verfahren und Vielzweckbehälter zum Transport von Gütern, die unterschiedliche Temperaturen während ihres Transports erfordern

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018155408A1 (ja) * 2017-02-22 2018-08-30 大日本印刷株式会社 情報表示体、管理システム、情報処理装置及び流通システム
CN112591267A (zh) * 2020-12-29 2021-04-02 溧阳互丰新能源科技有限公司 一种碳化稻壳生产用储运装置
EP4303506A1 (de) * 2022-07-07 2024-01-10 Rep Ip Ag Behälter zum transportieren von temperaturempfindlichen gütern

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1186842B1 (de) 2000-09-11 2004-11-17 L'AIR LIQUIDE, S.A. à Directoire et Conseil de Surveillance pour l'Etude et l'Exploitation des Procédés Georges Claude Verfahren und Vorrichtung zur Verpackung von Kohlendioxidschnee mittels eines Kunststoffilms
WO2010128535A2 (en) * 2009-05-05 2010-11-11 Luca Zacchi Container for packaging and system therefor
DE102010013079A1 (de) 2010-03-26 2011-09-29 Tkt Gassysteme Gmbh Isolierbehälter
US20130219948A1 (en) * 2010-10-25 2013-08-29 Icebridge Oy Cooling solution in a trolley of an aeroplane

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1186842B1 (de) 2000-09-11 2004-11-17 L'AIR LIQUIDE, S.A. à Directoire et Conseil de Surveillance pour l'Etude et l'Exploitation des Procédés Georges Claude Verfahren und Vorrichtung zur Verpackung von Kohlendioxidschnee mittels eines Kunststoffilms
WO2010128535A2 (en) * 2009-05-05 2010-11-11 Luca Zacchi Container for packaging and system therefor
DE102010013079A1 (de) 2010-03-26 2011-09-29 Tkt Gassysteme Gmbh Isolierbehälter
US20130219948A1 (en) * 2010-10-25 2013-08-29 Icebridge Oy Cooling solution in a trolley of an aeroplane

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018155408A1 (ja) * 2017-02-22 2018-08-30 大日本印刷株式会社 情報表示体、管理システム、情報処理装置及び流通システム
CN112591267A (zh) * 2020-12-29 2021-04-02 溧阳互丰新能源科技有限公司 一种碳化稻壳生产用储运装置
EP4303506A1 (de) * 2022-07-07 2024-01-10 Rep Ip Ag Behälter zum transportieren von temperaturempfindlichen gütern
WO2024009151A1 (en) * 2022-07-07 2024-01-11 Rep Ip Ag Container for transporting temperature-sensitive goods

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