| 摘要 |
PURPOSE:To prevent the elevation of the temperature of a heat collecting plate for the solar heat collector when the heat collector is burned without water, by a method wherein configuration storing pipes each of which becomes twisted in a stored configuration when it is heated to a high temperature are connected to both ends of a heat collecting pipe, respectively, at positions near both ends of a heat collecting fin. CONSTITUTION:The heat collecting plate is formed in such a manner that the heat collecting pipe 4 is welded to the heat collecting fin 13 which has been subjected to a surface treatment so that the upper surface thereof has a high sunlight adsorbing efficiency while the rear surface thereof has a low sunlight adsorbing efficiency. Then the configuration storing pipes 5 are connected to both ends of the heat collecting pipe 4, respectively, at positions near both ends of the fin 13. Each of the configuration storing pipes 5 becomes twisted in a stored configuration when it is heated to a high temperature, whereby when the heat collector is burned without water, each of the pipes 5 becomes twisted to make the heat collecting plate reversed to thereby cause the rear surface of the heat collecting fin 13, that is, the surface having a low sunlight absorbing efficiency, to face the sun. |
