| 摘要 |
PURPOSE:To obtain a heat accumulating tank using solid/liquid mixture heat accumulating material of a structure in which a casing is not damaged even if the material having a large volume change in the case of a phase change of solidifying.melting of nitrate or the like is used for the tank. CONSTITUTION:A solid heat accumulating material and a heat accumulating material which is solid at the ambient temperature and becomes liquid at an elevated temperature in a heat accumulating temperature range are filled in a heat accumulating tank 11, and solid/liquid mixture heat accumulating material 12 having an electric heater 14 of a heating source arranged to the heat accumulating material 12 and a heat transfer tube 13 in which liquid is introduced is used. The heater 14 is inserted from an upper part of the tank 11 into the material 12. |
