Low temperature food storage process

F - Mech Eng,Light,Heat,Weapons – 25 – D

Patent

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F25D 29/00 (2006.01) F25D 13/00 (2006.01)

Patent

CA 2140517

A temperature control method for low temperature food storage equipment is provided. The equipment comprises an icehouse and a food storeroom each surrounded by a heat insulator, a temperature sensor disposed in the storeroom, a first heat exchanging pipe extending from a lower portion of the icehouse to an upper portion of the storeroom, a second heat exchanging pipe extending from an upper portion of the icehouse to a lower portion of the storeroom and fans provided in the pipes for circulating air selected on the icehouse and the storeroom. The air flow directions in the first and second heat exchanging pipes are selected on the basis of the temperature detected by the the temperature sensor.

Méthode de régulation de la température pour installation de stockage d'aliments à basse température. L'installation comporte une glacière et une chambre de stockage sous isolation thermique, une sonde de température placée à l'intérieur de la chambre de stockage, un premier tube d'échange thermique allant de la région inférieure de la glacière à la région supérieure de la chambre de stockage, un deuxième tube d'échange thermique allant de la région supérieure de la glacière à la région inférieure de la chambre de stockage; des ventilateurs, montés à l'intérieur des tubes d'échange thermique, assurent la circulation de l'air entre la glacière et la chambre de stockage. Le sens d'écoulement de l'air à l'intérieur des premier et deuxième tubes d'échange thermique est déterminé en fonction de la température détectée par la sonde de température.

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