DEVICE FOR OBTAINING OF THAW WATER Russian patent published in 2009 - IPC C02F1/22 F25C1/12 

FIELD: chemistry.

SUBSTANCE: device for obtaining of thaw water by water freezing and its following unfreezing includes broadening upward and round in plan view tank for water freezing with heat-insulating top cover and bottom mounted on the heat-insulating pallet. The water freezing tank is provided with vertical tube which lower hole looks on the outer tank surface. The bottom and side wall of water freezing tank can be designed double-layered (having outer and inner walls), with holes for hot water inlet and outlet. The device for thaw water obtaining can additionally be provided with water unfreezing tank with holes thaw water bleeding in the centre and periphery of its bottom. The inner part of the bottom has the ring around of the central hole with diametre not less than diametre of the removed contaminated ice column; the design of central hole allows flow control of the bled contaminated thaw water.

EFFECT: increase of thaw water yield, enhancing of the removal efficiency of the ice with decreased deuterium content, enhancing of device usability.

3 cl, 8 dwg