Patent ID: 9644500
Date: 2017-05-09
CPC Classifications: B01D,C02F,F01K,Y02A,Y02E

Claim:
1. An electricity-water co-generation system, comprising a descaling device, a mixed heat exchanger, a residual heat generator and a thermal power generation device; the descaling device, used for heating saline water through spent steam, rapidly crystallizing a calcium magnesium compound in the saline water as calcium-magnesium scale, filtering the saline water to obtain descaled water, delivering the descaled water to the mixed heat exchanger, and removing the calcium-magnesium scale; the descaling device is a pressure container that mixes the spent steam and saline water, performs heat transfer and mass transfer, and then raises the temperature of the saline water to 120° C. or above, and quickly crystallizes the calcium magnesium compound in the saline water as calcium-magnesium scale, the mixed heat exchanger, used for distilling the descaled water at a high temperature through the spent steam, generating saturated steam and strong saline water, delivering the saturated steam to the residual heat exchanger and discharging the strong saline water; the residual heat exchanger, used for converting the heat energy of the saturated steam into electric energy, and separating the condensed water generated after the saturated steam releases the heat energy into two parts, one part being delivered to the thermal power generation device and the other part being output as fresh water; and, the thermal power generation device, used for heating the condensed water to generate overheat steam, converting the heat energy of the overheat steam into the electric energy, and feeding the spent steam generated by releasing the heat energy of the overheated steam to the descaling device and the mixed heat exchanger, respectively.