Modular insulated container and method for operating same
A modular insulated container for storing goods at constant temperatures. The container has, in an outwardly insulating manner, at least one base, at least one cover and at least four side walls of insulating material, which enclose an inner chamber provided for accommodating the goods in a thermally insulating manner. The at least four side walls are mounted separately with the at least one base and the at least one cover. At least one of the mounted, outwardly insulating side walls has temperature control elements, which face the inner chamber and contain thermal storage fluids, which are separated from the inner chamber by thermally conductive material.
1. A modular insulated container with an inner volume for storing goods at constant temperatures, said modular insulated container comprising;
a base, a cover and at least four side walls which enclose the inner volume and each of the base, the top and the side walls being provided with a heat insulating structure
wherein the at least four side walls are each mounted separately with the base and the cover, and at least one of the side walls has a temperature control element, which faces the inner volume and contains a thermal storage fluid,
wherein the temperature control element is separated from the inner volume by a thermally conductive material consisting of a transparent barrier film made of one of PET, PE and polyamide (PA) and with a further barrier layer of at least one of ethylenevinyl-alcohol (EVOH), a polyester with a barrier of at least one of PET coated with polyvinylidenchloride ((PETX)(PVDC)), oriented polypropylene with a barrier (OPPX or “BOPP”), polyester with a barrier (PETXP), PAX, polyamide/EVOH (barrier)/polyamide (PA-EVOH-PA) and oriented polyimide (OPA), and
wherein the container is provided with a detector and a recorder for recording temperature, pressure and vibration values detected by the detector.
2. The container according to claim 1 , wherein the insulating material comprises expanded polystyrene, expanded polypropylene or polyurethane hard foam.
3. The container according to claim 1 , wherein the side-walls are between 60 and 200 mm thick.
4. The container according to claim 3 , wherein the side walls are rectangular and are provided along peripheries thereof, respectively, with a tongue or groove.
5. The container according to claim 1 , wherein the at least one base is shaped like a pallet.
6. The container according to claim 1 , wherein the thermally conductive material is 5 to 150 micrometer thick.
7. The container according to claim 1 , wherein the barrier film is in the form of a transparent barrier film bag.
8. The container according to claim 7 , wherein the PET barrier film bag is aluminum coated or provided with polyethylene plastic sheets which are attached to the at least four side-walls, the base and the cover.
9. The container according to claim 7 , wherein the PET high barrier film bag is flat, between 1 mm and 30 mm thick, and provides at least 60% surface coverage of the inner volume.
10. The container according to claim 1 , wherein up to 1000 high barrier film bags are provided on each side-wall.
11. The container according to claim 1 , wherein the thermal storage fluid comprises pure n-paraffin with a chain-length of C16, C17, C18, pure tetradecan C14, tetradecan/pentadecan mix of C14 and C15, pure pentadecan, n-paraffin mix of C10 to C18, water, eutectic salt solutions, salt mixes, saturated salt solution of ammonium hydrate or 2,3-butandiol.
12. The container according to claim 1 , wherein the temperature control element is covered with a corrugated card board, PE-board aluminum board or PE-film.
13. The container according to claim 1 , wherein the detector and recorder are liquid crystal thermometer and a temperature data logger, respectively.
14. The container according to claim 13 , wherein the detector and recorder are provided with a transmitter for detected and recorded data.
15. The container according to claim 1 further comprising;
heat insulating panels arranged respectively at a side oriented towards an inside of the base and the at least four sidewalls and in the cover, and a cover member perforated towards the inner volume with at least one cavity and at least one temperature control element is provided between this cover member and one of the heat insulating panels which is located in the cover.
16. The container according to claim 15 , wherein cavities are provided for storing the heat insulating panels respectively at the side oriented towards the inside of the at least one base and the at least four Side walls.
17. The container according to claim 15 , wherein the at least one heat insulating panel above the at least one temperature control element towards the inner volume perforated cover member is provided with a protection layer, which is laid on the at least one heat insulating panel above temperature control element on the cover member.
18. The container according to claim 11 , wherein the at least one temperature control element on the cover member is water-based.
19. The container according to claim 7 , wherein the temperature control element is welded to one of the metal coated transparent film and the barrier film bag.