DISTILLATION OR EVAPORATION METHOD AND EQUIPMENT FOR SALT WATER OR SOFT OF FLUID BY REHEATED STEAM AT MULTIPLE EFFECT EVAPORATION SYSTEM WITH CHAMBER OF HORIZONTAL PLATE TYPE HEAT EXCHANGER

摘要

Disclosed is a multiple effect evaporation technique capable of evaporating the liquid phased material at one evaporator with the high temperature steam so that the evaporated steam may make the liquid phased material at another evaporator adjacent to one evaporator to be re-heated to generate evaporation. A conventional multiple effect evaporation system has a big external size of evaporator, and the liquid at another evaporator is heated with low temperature steam for evaporation. In this case, evaporation is accomplished when the pressure in the evaporator is reduced. Therefore, pressure reducing equipment is always required at every stages of evaporators which will cause the number of evaporator stages to be limited into a few stages. To solve the above shortage, the present invention, a multiple effect evaporation technique that consisting of many horizontal plate typed evaporation chambers stacked perpendicularly to reduce the external size of a multiple effect evaporation system is the high efficiency evaporation technique which using the externally re-heated steam generated from the every horizontal plate typed evaporator as a heat source of a next adjacent evaporator. Accordingly, the present invention, the multiple effective evaporation or distillation technique is related to evaporating the present invention of salt water or sort of liquid with the steam boiler or solar heat boiler.