| 摘要 |
PURPOSE:To provide a solar water heater which is foldable to a compact size for portability by constructing a bag that is composed of a bottom plate made of a flexible sheet and, on top of it, a swelling part made of transparent film, a feed water inlet and a water outlet being provided to such a bag. CONSTITUTION:The bottom plate of the instant solar water heater is formed by a flexible sheet 1 made of vinyl chrolide etc., and, on top of it, a bag (a) is disposed which has a swelling part (b) made of transparent film 2. The bag has on its both sides a sheath 4 in which a frame pipe 5 is inserted to fixedly attach both the ends to a desired position. The bag (a) has a feed water inlet 6 and a water outlet 7 so that it can be transported to a desired location and a solar water heater may readily be constructed on the spot. |
