MODEL WATER HEATERS SPECIFIC FOR WATER COVERING IN CONNECTION WITH THE DEVELOPMENT OF SOUTH WATER BY DISTILLATION OF SEA WATER

摘要

Heat exchanger intended especially for use at the cooling of water in connection with the recovery of fresh water by distillation of sea water, comprising a plurality of flow elements of substantially plane parallel and vertical relationship. Each flow element consists of two foils (10, 20), which in longitudinal direction of the flow elements so are jointed in several places, that each flow element includes a number of longitudinal gaps (11, 12, 13, 14) defined by discontinuous joints (15) for water transport. At their upper ends the flow elements are attached mechanically to an inlet (17) for heated fresh water from an evaporation chamber, and at their lower ends the elements are attached to an outlet (18) for cooled water to the evaporation chamber. The flow elements are arranged in a basin (60), which is provided with inlets (76-78) for cold sea water below and with outlets (86-88) for heated sea water above the flow elements. The heat exchanger implies that very large heat exchanging surfaces are obtained at low material consumption, thereby rendering the heat exchanger also cheap. The foils (10, 20) preferably are made of plastics and, therefore, have low weight and do not cause corrosion problems.