| 摘要 |
An improved desalination system includes a transfer conduit between a pool of salt water and a pool of desalinated water. The transfer conduit is initially filled with water and is elevated so that a portion of the conduit is above the siphon height of water at atmospheric pressure with the open ends of the conduit submerged below the respective pools. Using solar heat to create a temperature differential in the transfer conduit, desalinated water vapor is transferred across a partial vacuum volume formed in the transfer conduit. Salt water is replenished in the transfer conduit from an elevated storage tank, resulting in a constant reduced salt concentration and transfer vacuum at the evaporation surface, reducing the need to repeatedly lower, recharge and raise the system. Various mechanisms are provided for improving heat transfer and condensation and for eliminating movement of the transfer conduit. |
