| 摘要 |
1,166,840. Solar distillation apparatus. MINISTER OF TECHNOLOGY. 22 Dec., 1967 [22 Dec., 1966], No. 57385/66. Heading B1B. A solar still comprises an inflatable tube 10 in the form of a ring within which is supported a circular sheet of black absorbent material 12, e.g. black towelling, and surmounted by a conical dome 17 made of material, such as P.V.C. or polythene, which is transmissive to heat radiation from the sun. When used on land, liquid to be submitted to distillation, e.g. urine, is .supplied to the still through pipe 15, and is drawn by capillary action up cloth skirt 13 to the absorbent sheet 12. Water evaporates from urine absorbed in the sheet 12, and the vapour condenses on the underside of dome 17. The condensate (potable water) flows down into gutter 18, and is collected in bottle 20. Also described is a still which floats on the sea, and can be used for distilling sea water. |
