PURPOSE: To prevent the leakage of a heating medium of heat radiating pipe and a heat collecting pipes due to the corrosion and damage in welded parts by eliminating the welded parts in the hot water tub and the head collector of a solar heat hot water apparatus.
CONSTITUTION: This solar heat hot water apparatus comprises a hot water tub 1 in which heat radiating pipes 2 with heat radiating fins 3 formed are housed and a heat collector 5 in which heat-collecting pipes 6 with a plurality of heat-collecting plates 8 formed are provided. In the heat-radiating pipes 2 in which a heating medium is filled, parts in which the heat radiating fins 3 are formed are integrally formed with U-shaped bent parts 4. In the heat collecting pipes 6, parts to which the heat collecting plates 8 are welded are formed integrally with U-shaped bent parts 7. Thus, the heat radiating pipes 2 are connected to the heat collecting pipes 6 outside the hot water tub 1 and the heat collector 5.
| JP2008546195 | Sunlight concentrator |
KIYOU RIYUUKAKU
BUN KIGAKU
SHIN KANTETSU
