Module and system of multi effect distillation of inclined, and method to increase the efficiency of a module of multi effect distillation inclined

摘要

The tilted multi effect distillation module according to the invention comprises a plurality of distillation stages. Each stage is defined by a first and a second sheet member arranged in parallel to each other, the second sheet member above the first sheet member, and by one or more frame members (5) enclosing the space between the sheet members. In addition each stage comprises an inlet (21) for supplying feed liquid to the upper surface of the first sheet member at one end thereof, at least one first outlet (31) for extracting residual water at the other end of the first sheet member, and at least one second outlet for extracting water condensating on the second sheet member. The sheet members are plane, uninterrupted plates of tempered glass. In preferred embodiments the module comprises a bottom element (6) forming a space between it and the lowermost sheet member, said space being connected to a heating fluid inlet. A corresponding top element may be connected to a cooling fluid inlet. Preferably the feed liquid is used as a cooling liquid. Separator members arranged between the sheet members may include inlets (21) and outlets (31) to/from the stages. The invention also relates to a system, where such a distillation module cooled by means of the feed liquid is combined with a solar collector of the thermo siphon type.