Heat storage unit

F - Mech Eng,Light,Heat,Weapons – 28 – D

Patent

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Details

F28D 20/00 (2006.01) C09K 5/06 (2006.01)

Patent

CA 2546687

A heat storage unit capable of efficiently storing heat in a short time. The unit includes: a heat storage container la that houses sodium acetate 3, which stores heat by a state change between solid and liquid, and oil 2, which exchanges heat by directly contacting the sodium acetate 3, has smaller specific gravity than that of the sodium acetate 3, and is separated from the sodium acetate 3. Further, the unit includes: a supply pipe 4 that passes at least through the sodium acetate 3 housed in the heat storage container 1a and supplies the oil 2 into the heat storage container 1a; and a discharge pipe that discharges the oil 2 housed in the heat storage container 1a to the outside of the heat storage container 1a. Then, the supply pipe 4 crosses the boundary surface between the oil 2 and the sodium acetate 3 which are housed in the heat storage container 1a, has a plurality of discharge holes that discharge the supplied oil 2a, and at least one of the discharge holes 6 are positioned in the oil 2.

L'invention concerne une unité de stockage thermique pouvant stocker la chaleur de manière efficace en un temps réduit, qui comprend un récipient à accumulation de chaleur (1a) stockant de l'acétate de sodium (3) accumulant la chaleur par changement d'état entre solide et liquide et une huile (2) échangeant la chaleur par contact direct avec l'acétate de sodium (3) et s'en séparant étant donné que sa gravité spécifique est inférieure à celle de l'acétate de sodium (3). L'unité de stockage thermique comprend également un conduit d'alimentation (4) traversant au moins l'intérieur de l'acétate de sodium (3) stocké dans le récipient à accumulation de chaleur (1a) et alimentant ce dernier en huile (2), et un conduit d'évacuation (6) qui évacue l'huile (2) stockée dans le récipient à accumulation de chaleur (1a) à l'extérieur de ce dernier. Le conduit d'alimentation (4) traverse une surface limite entre l'huile (2) stockée dans le récipient à accumulation de chaleur (1a) et l'acétate de sodium (3), et comprend plusieurs trous d'évacuation destinés à évacuer l'huile fournie (2a). Au moins un trou d'évacuation (6) est placé dans l'huile (2).

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