| 摘要 |
A solar energy distillation apparatus (1) capable of easily converting raw water such as sea water to fresh water at a low cost by evaporating raw water by solar heat, and repeatedly and effectively utilizing condensation latent heat of the resulting vapor, comprising a basin portion (2) having a water panel (10) and a multiple-effect portion (3) having a plurality of distillation units (4) divided by partitions (5). The vapor (11) of brine of the water panel (10) generated by solar heat undergoes condensation on the surface of the partitions (5a) and turns to distilled water (12). In this instance, brine (6) contained in a cloth (7) on one of the surfaces of the partitions (5a) evaporates due to condensation latent heat and the resulting vapor (13) undergoes condensation on the surfaces of the partitions (5b) to be turned to distilled water (12). Thereafter, distilled water (12) and condensed brine (14) are recovered in the same way. This invention does not need any specific heating means at the initial evaporation portion which is a problem with the prior art, and can effectively turn brine to fresh water at a low cost by re-utilizing solar heat and condensation latent heat of the resulting vapor. When double-glass having colored inner glass is used for the solar heat incidence surface of the basin portion, condensation of the vapor on this surface can be restrained and greater amounts of the resulting vapor can be utilized at the multiple-effect portion. |
