| 摘要 |
PCT No. PCT/SE86/00290 Sec. 371 Date Mar. 3, 1987 Sec. 102(e) Date Mar. 3, 1987 PCT Filed Jun. 16, 1986 PCT Pub. No. WO87/00160 PCT Pub. Date Jan. 15, 1987.An apparatus for desalinating sea water, comprising a distillation unit which includes a porous hydrophobic membrane which is pervious to steam but impervious to water, and a condensation surface arranged at a distance from the membrane, the distillation arrangement also including a first unit for heating and conducting the water to be distilled on one side of the membrane, and a second unit arranged to conduct a liquid which is colder than the water, on the side of the condensation surface remote from the membrane, distilled water being collected and drawn-off between the membrane and the condensation surface. The apparatus is characterized in that the first unit incorporates a closed pipe loop (11',12,13) which is connected in series with the warm side (10) of the distillation unit (1); in that the second unit incorporates a closed pipe loop (14,15,16) which is connected in series with the cold side (11) of the distillation unit (1); in that a drainage valve (17) is provided for drawing-off water from the pipe loop (11,12,13), of the first unit; in that there is provided a water filling valve (20) and a pipe line (23) for drawing water from the pipe loop (14,15,16) of the second unit; in that the pipe loops of respective first and second units are connected together by means of a connecting line (25); and in that a heat exchanger (50) is connected to the pipe loop (11,12,13) of the first unit for supplying energy to the water present in the pipe loop of the first unit. |
