| 摘要 |
PURPOSE:To facilitate the application of the solar energy collecting device by a method wherein two pipes for feed to and return from a heat collector are combined in a double pipe of a synthetic resin. CONSTITUTION:An upper connection pipe 3 and a lower connection pipe 4 of a heat collector 1 are connected to a connection adapter 5 by the shortest length. In a heat accumulating tank 8, an inlet side pipe and an outlet side pipe of a heat exchanger 9 are connected to another connection adapter 5. These connection adapters 5 are constituted by a double metal cylinder comprising an outer cylinder member 10 and an inner cylinder member 12. The outer cylinder member 10 is provided with a connection port 11 on the side thereof, and inner cylinder member 12 is partially shaped in an expansion part 13 formed in a bellows. Accordingly, the solar heat collector 1 and heat accumulating tank 8 are interconnected by the double pipe. Thus, the time for piping is much saved and also the appearance of the device is much improved. |
