| 摘要 |
A multistage flash evaporator for evaporating a solvent from a solution, in which a housing with side walls is divided by divider walls into a plurality of stages maintained, during operation of the evaporator, at successively decreasing pressures. Condenser structures consisting of chambers (34, 36) extending between the side walls (18, 20) are arranged in the upper portion of, and next to, two adjacent evaporation stages (11, 13) and the chambers (34, 36) are divided by a partition (32) into two sections (34 and 36), one in communication with one and the other section being in communication with the other of said two adjacent evaporation stages (11, 13) the condenser tubes (30) extending between the side walls (18, 20) of the housing and serially through the two sections (34, 36), of the condenser chambers in a direction general parallel to said divider walls (12, 14).
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