Title:
RE-COMPRESSING AND EVAPORATING METHOD OF SOLUTION
Document Type and Number:
Japanese Patent JPS5976501
Kind Code:
A
Abstract:
The invention relates to a method for evaporation of a solution in a recompression evaporation plant. The solution is evaporated first in known manner by indirect transfer of heat from the recompressed vapor through condensation of said vapor in one or more evaporation units. After pre-evaporation in this fashion the solution is finally evaporated by direct transfer of heat from the overheated vapor which is obtained by recompression of the vapor formed in evaporation. According to the invention this final evaporation is achieved by mixing the solution in finely-divided form with the overheated vapor and then after thermodynamic equilibrium between the vapor and liquid phases has been substantially attained separating the solution from the vapor. The solution thereby obtained can be further evaporated without the addition of heat but with a reduction of pressure by means of conducting it to an expansion vessel which is connected by a vapor line to the suction line of the compressor.
Inventors:
OSUTOMAN PERU HEKAN
Application Number:
JP17402183A
Publication Date:
May 01, 1984
Filing Date:
September 19, 1983
Export Citation:
Assignee:
EKONO OY
International Classes:
B01D1/14; B01D1/28; B01D3/06; C02F1/04; (IPC1-7): B01D1/28; C02F1/04
Attorney, Agent or Firm:
Hidehiko Matsuno
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