FIELD: heating.
SUBSTANCE: multi-stage evaporation device includes the following components at every stage: evaporation heat-exchanger; separation chamber; pipelines with pumps of return and transfer of solution to the next stage. The novelty is equipping of force pipelines for transfer of evaporated solution from the 1st stage to the 2nd and from the 2nd to the 3rd with injector chambers, suction cavities of which are connected with pipelines with separation chambers.
EFFECT: increase efficiency of evaporation; expansion of range of control of underpressure depth and elimination of exclusiveness of forced external vacuum generation.
2 dwg
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