DEVICE FOR PREPARATION OF PURE WATER FROM UNPURIFIED WATER

摘要

FIELD: water purification devices. SUBSTANCE: proposed device includes evaporation system 10 with first loop 101 for circulation of unpurified water, second loop 102 for circulation of liquid coolant and membrane members intended for separation of circulating unpurified water from circulating liquid coolant and for preparation of pure water from unpurified water by membrane distillation through membrane members. First loop 101 is connected with one side 111 of heat exchanger 11 used for raising temperature of unpurified water before admitting it to evaporation system 10. Device is also provided with thermal pump 12 intended for reducing temperature of liquid coolant before admitting it to evaporation system 10. High-temperature side 121 of vacuum pump is connected with inlet side 1021 of second loop 102 through other side 112 of said heat exchanger 11 and cooling unit 13. Low- temperature side 122 of thermal pump is connected with outlet side 1022 of second loop 102. Proposed device may use all available hat and cold in the course of operation of thermal pump which reduces power requirements. EFFECT: reduced power requirements. 1 dwg