| 摘要 |
A distillation system for sea water is provided with a fan to force air under pressure through a heating chamber having a heat exchanger to heat the air, a passageway from the heating chamber for directing the heated and pressurized air to an evaporator in which a reservoir of sea water is maintained at a predetermined level and in which cylindrical horizontally disposed brushes are partially submerged in the sea water and rotated as the heated air from the heating chamber passes over the rotating brushes with the brushes rotated at a sufficiently high speed to keep the brushes wet thereby preventing the formation of scale on the brushes. The moisture laden heated air then flows through a condenser which includes a heat exchanger utilizing sea water as the cooling medium and includes an outlet valve which permits the condensed water to be withdrawn for use. A pressure regulating valve between the condenser and evaporator causes higher pressures in the evaporator and heating compartment and a lower pressure in the condenser. The dry air from the condenser is then withdrawn through a passageway and returned to the heating chamber by the fan. A second stage evaporator having rotating brushes similar to those in the first stage receives sea water from the reservoir in the first evaporator through a level regulating valve which maintains a predetermined level of sea water in a second stage evaporator reservoir. An air ejector withdraws the moisture vapor and gases from the second stage evaporator and causes them to flow through a second stage condenser where a portion of the moisture is condensed for use and the remaining moisture and gases are withdrawn through the air ejector.
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