| 摘要 |
Evaporation system for evaporation of a liquid 11 by means of the heat that the liquid contains and heat energy 18 of lower temperature so that the liquid is cooled in one or more evaporation stages 1, 2, 3 to a temperature lower than the temperature of the heat energy by the fact that the steam evaporated in each stage is fully condensed in heat transfer with the liquid evaporated in the following stage, whereupon liquid 28 flows to stage 4 which is heated by external heat energy 18/16 in addition to this steam 27/26. <IMAGE>
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