| 摘要 |
<p>A desalination system comprises seawater filled tubes which pass through glycol filled spheres. The curvature of a sun facing side of each sphere focuses solar rays to a focal point F within each sphere. From this focal point the solar rays diverge to a concave mirror MR, placed on the side of the sphere which is away from the sun, which then reflects the solar rays back to the same focal point thus heating the seawater. The concave mirror can be double the focal power of the spheres. The spheres are placed in a sun facing position, i.e. facing south in the northern hemisphere or facing north in the southern hemisphere. Seawater may be pumped upwards through telescopic (TL, Fig. 2) or tapered (TP, Fig. 2) tubes. After leaving a pump (P, Fig. 3), placed at the zenith of the system, the salt water may flow downwards and fill empty spheres which optionally have heated coils and steam valves so that the steam from the salt water passes into a fresh water reservoir, the remaining seawater dropping by gravity to drive water wheels or turbines for the generation of electricity.</p> |
