| 摘要 |
PURPOSE:To prevent a water supply pipe from freezing, by a method wherein a heat collector and a hot water tank of a solar water heater are separated from each other and a water supply pipe is arranged underneath the hot water tank for keeping it warm. CONSTITUTION:A main container 3 possesses a hollow protruded part 4 on the center of an upper end face and a water supply port 5 and an overflow drain port 2 are provided on both sides of the protruded part 4. A Y-shaped recessed groove 1 for passing piping through extending from both sides of the protruded part 4 to a lower end face is provided on the backside of the main container 3. The intakes 6 for connection of a first heat collector and two outlets 7 for connection of the heat collector are applied to an upper end face 3a of the main container 3 by placing the protruded part 4 between them. As a water feed pipe 31 and an overflow drain pipe 32 are housed within the recessed groove 1 of the main container 3 containing hot water, they are hard to be damaged through freezing, an external appearance becomes smart and it is favourable from a design point of view. |
