| 摘要 |
The water distillation system of the invention includes first and second humidifiers (1, 21), first and second dehumidifiers (2, 22), a first closed gas circuit (3) crossing the first humidifier (1) and the first dehumidifier (2) and in which a first gas is circulated, a second closed gas circuit (23) crossing the second humidifier (21) and the second dehumidifier (22) and in which a second gas is circulated, a feed water circuit (14) carrying feed water and successively crossing a first feed water heater (15), a second feed water heater (16; 16'; 16''; 16'''), the second humidifier (21) and the first humidifier (1), a closed cooling water circuit (18) carrying cooling water and successively crossing the second dehumidifier (22), the first dehumidifier (2) and the first feed water heater (15), and a unit (29, 10, 11) for recovering, as product water, excess water from the cooling water. The first and second humidifiers (1, 21) are arranged to respectively humidify the first and second gas by direct contact between the feed water and, respectively, the first and second gas. The first and second dehumidifiers (2, 22) are arranged to respectively dehumidify the first and second gas by direct contact between the cooling water and, respectively, the first and second gas. The first feed water heater (15) is arranged to transfer heat from the cooling water exiting the first dehumidifier (2) to the feed water. |
