| 摘要 |
PROBLEM TO BE SOLVED: To provide a sunlight heat collection device converting sunlight to heat medium of middle heat of 60°C to 100°C under quite low cost.SOLUTION: A sunlight heat collection device 100 comprises a baloon 101 constituted by the first transparent flexible film and the second flexible film having a surface mirror. A sectional shape of a surface mirror portion of the baloon is kept at a quarter circular shape by gas filled in the baloon 101. Further, a heat collection pipe 102 covering an area where sunlight reflected from the surface mirror is collected is installed in the baloon 101, liquid is passed in the heat collection pipe to realize heat transfer. It has a similar capability to that of a cylindrical baloon type sunlight heat collection device [patent document 2], it intends to reduce material cost and the number of processes for manufacturing, i.e. the fees, and to simplify the structure and make its weight light while keeping a mechanism for maintaining a shape of a thin-film part having an important surface mirror to a quarter arcuate shape at the baloon type sunlight heat collection mechanism.SELECTED DRAWING: Figure 1 |
