| 摘要 |
PURPOSE:To enable to collect solar heat under the optimum condition according to the season without tracking the sun by a method wherein heat collecting pipes are respectively located at the condensing position of the sunlight according to the season and as well as the switching means of heat carrier is provided. CONSTITUTION:A plurality of heat collecting elements 5, which consists of a transparent glass tube 5, heat collecting pipes for summertime and for wintertime 8 and 9 and a heat collecting plate 10 coupling the pipes 8 and 9 with each other, are disposed in an array so as to let the pipes 8 and 9 respectively locate at each position of the condensing positions of the sunlight, which comes from the altitudes of the sun in summertime and in wintertime and is reflected with a reflector 11. The inlet and outlet sides of each of groups of the same pipes 8 and of the same pipes 9 connected to header pipes for summertime and for wintertime 12 and 13 respectively and the same inlet sides of the header pipes 12 and 13 and the same outlet sides of the header pipes 12 and 13 are respectively communicated with each other and connected to a supply pipe 14 and to an outlet pipe 15 respectively. Closing valves 16 and 17 used as switching means are respectively inserted at the inlet side of the header pipe 12 and 13, highly efficient heat collection is possible in summertime by opening the valve 17 and closing the valve 16 and in wintertime by closing the valve 17 and opening the valve 16. |
