| 摘要 |
The invention relates to a water-heating device using solar energy that consists of two flexible elastomer foil layers (2), water guiding passages (6) are created by fixing together the two foil layers (2) along fastening lines (4, 5) at a permanent distance from each other, the passages have connecting elements serving to input and output the water at the two most distant points of the passages from the point of view of water flow. According to the invention bundles (7) are formed from the neighbouring passages (6), a single bundle (7) contains two to twelve passages (6), preferably three to eight passages (6), the ends of the passages of neighbouring bundles (7) are connected to each other with one connection passage (8) or with several arranged in parallel in such a way that the one end of the passages (6) of a given bundle (7) is connected to the ends of the passages (6) of the neighbouring bundle (7) on the one side of the given bundle (7) and the other end of the passages (6) of the given bundle (7) is connected to the ends of the passages (6) of the neighbouring bundle (7) on the other side of the given bundle (7). |
