Heat-storage device

Abstract

Disclosed is a heat-storage device provided with a supply pipe, a discharge pipe, and a heat-storage container that contains a heat-storage material. A heat-storage material layer comprising said heat-storage material is formed in the bottom of the heat-storage container. The supply pipe supplies a heat-carrying oil, which has a lower specific gravity than the heat-storage material, from outside the heat-storage container to the inside of the heat-storage material layer. The discharge pipe discharges the heat-carrying oil, which had been supplied to the inside of the heat-storage material layer, to the outside of the heat-storage container. The heat-storage device is also provided with a plurality of metal plates (members inside the heat-storage material layer) arranged vertically inside the heat-storage material layer. A metal plate is also disposed such that the upper end thereof is at a height greater than or equal to the vicinity of the upper surface level (L) of the heat-storage material layer. The disclosed heat-storage device is better than conventional heat-storage devices at preventing the heat-storage material from escaping the heat-storage container.

1 . A heat storage device comprising:
 a heat-storage container that stores a heat-storage material used for latent heat storage, and has a heat-storage material layer containing the heat-storage material, and formed at a bottom portion thereof;   a supply pipe that supplies the heat-storage material layer with a heat exchange medium smaller in specific gravity than the heat-storage material from the outside of said heat-storage container into the heat-storage layer;   a discharge pipe that discharges the heat exchange medium supplied into the heat-storage material layer to the outside of said heat-storage container; and   a plurality of intra-heat-storage-material-layer members that are arranged in an up/down direction in the heat-storage material layer, and are formed by metal plates or pipes,   wherein said intra-heat-storage-material-layer members are arranged so that upper ends of said intra-heat-storage-material-layer members are disposed at a height equal to or more than a vicinity of an upper surface level of the heat-storage material layer.   
     
     
         2 . The heat-storage device according to  claim 1 , wherein a hole passing through a wall surface of said intra-heat-storage-material-layer member is formed. 
     
     
         3 . The heat-storage device according to  claim 1 , comprising a perforated plate that is horizontally attached to a lower end portion of said heat-storage container so as to partition said heat-storage container into two spaces delimited in an up/down direction, wherein:
 a lower end of said supply pipe and said perforated plate are connected with each other; and   the heat exchange medium is supplied to the inside of said heat-storage container below said perforated plate via said supply pipe.   
     
     
         4 . The heat-storage device according to  claim 2 , comprising a perforated plate that is horizontally attached to a lower end portion of said heat-storage container so as to partition said heat-storage container into two spaces delimited in an up/down direction, wherein:
 a lower end of said supply pipe and said perforated plate are connected with each other; and   the heat exchange medium is supplied to the inside of said heat-storage container below said perforated plate via said supply pipe.