| 摘要 |
1. Closed electrical heat storage furnace comprising an outer facing (1), core structure inside said outer facing and made of heat storing material, electrical heating coils (13) mounted inside said core structure, said core structure being enclosed by an insulating layer (3), and storage blocks each having an opening for the passage therethrough of the heating coils and arranged on top of each other in a plurality of rows, characterized by said storage blocks comprising bricks (4) U-shaped in cross section and disposed in pairs in each horizontal row so that their openings face each other to define a continuous duct (9) for receiving heating coils (13), said bricks (4) in each row being placed in a side-by-side relationship so that their small end faces engage each other, with the narrow longitudinal surfaces of the bridge portions of the U-shapes being placed on top of each other in adjacent rows, by a large-area heat exchanger provided between insulating layer (3) and outer facing (1), and by outer facing (1) being assembled from module elements. |
