| 摘要 |
PROBLEM TO BE SOLVED: To provide an apparatus for salt-to-fresh water distillation which enables deaeration of fed salt water in a simple structure, with easy maintenance, and without corrosion of the apparatus. SOLUTION: In an apparatus for salt-to-fresh water distillation in which salt water is evaporated by heating in evaporating condensers 3, 4, 5 with the heat of a solar heat collector 8 as a heat source to produce distilled water, a polymer module 11 using a polymer membrane is installed in the path 18 through which salt water is fed to an evaporating concentrator 3, one side of the module is connected to a vacuum device 10, and the salt water is fed to the other side so as to deaerate the fed salt water through the membrane. The vacuum device 10 can be used with a water jet pump 15, the apparatus for salt-to-fresh water distillation is provided with a concentrated solution tank 6 storing the discharged concentrated-salt-water, and a path 23 is placed from the tank 6 to the polymer module 11 so that the polymer module 11 may be washed back by using the path.
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