Multilayer pipe cooling cold storage
AssigneeChuon Co., Ltd.
InventorKunio Osawa
Life of this patent
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Abstract
A cold storage box 1 comprises a housing 2 internally having a storage space S for a cold storage object, and one or more heat exchanger tubes 3 provided in the storage space S; wherein the heat exchanger tubes 3 are each a multilayer tube comprising an outer tube with thermal conductivity having an outer surface facing the storage space S, and as inner tube provided inside the outer tube; a first brine solution that does not freeze at 0° C. is contained between the outer tube and the inner tube; and a refrigerant, or a second brine solution that does not freeze at 0° C. is contained inside the inner tube.
Claims5
A cold storage box comprising:
- a housing internally having a storage space for a cold storage object,
- one or more first heat exchanger tubes provided in the storage space and containing a second brine solution,
- a brine tank containing the second brine solution supplied to the first heat exchanger tubes, and
- one or more second heat exchanger tubes provided in the brine tank;
- wherein the second heat exchanger tubes are each a multilayer tube comprising:
- an outer tube with thermal conductivity having an outer surface facing the second brine solution, and
- an inner tube provided inside the outer tube;
- a first brine solution that does not freeze at 0° C. is contained between the outer tube and the inner tube;
- and
- a refrigerant is contained inside the inner tube.
Dependencies are inferred from the claim text.