| 摘要 |
PURPOSE:To eliminate the requirement for multi-tank structure of a heat accumulator and contrive the reducing of manufacturing cost of the heat accumulator by utilizing more than two kinds of heat accumulating meterials having non-mixing property each other an each different fusion point. CONSTITUTION:A heat accumulator 5 is composed of a paraffin group 6 and a heat accumulating material 7, those two materials are directly enclosed in the same heat accumulating vessel. The heat accumulating material has a non-mixing property for said paraffin group and consists of more than one kind of inorganic hydrate group having each different fusion point. A paraffin group having an optinonal fusion point can be utilized as the heat accumulating material, further, the material having not only lower fusion point than an inorganic hydrate, but also having higher fusion point than the inorganic hydrate can be utilized. At the operation of the heat accumulator or room heating or hot-water supply, the heat accumulating material suitable for the utilizing purpose is the inorganic hydrate having the fusion point of approximate 30-90 deg.C, but the inorganic hydrate satisfying said condtions is very few. Therefore, the temperature range which is not fully covered only by the inorganic hydrate is compensated by the paraffin group. In this case, when there is no problem concerned with the high or low temperature for the fusion point of the inorganic hydrate, the solution means can be easily obtained. |
