Salt solution desalination power generation system capable of driving ion separation by mechanical energy and use method

Abstract

The invention relates to a salt solution desalination power generation system for ion separation driven by mechanical energy and a use method, and belongs to the technical field of electrochemistry, the salt solution desalination power generation system comprises a main chamber, a cation exchange chamber, an anion exchange chamber, a piston and an energy accumulator, the bottom surface of the main chamber is provided with a main water inlet and a main water outlet, the main water outlet is provided with a reverse osmosis membrane, and the piston is arranged at the top of the main chamber; the cation exchange chamber and the anion exchange chamber are oppositely arranged on the left side and the right side of the main chamber, the lower parts of the anion exchange chamber and the cation exchange chamber are communicated with the lower part of the main chamber, and anion exchange membranes and cation exchange membranes are respectively arranged at the communicated parts; the use method comprises the following steps: driving water molecules in a salt solution to be discharged through the reverse osmosis membrane by using pressure, and synchronously driving charged ions in the salt solution to pass through the anion exchange membrane and the cation exchange membrane, so that anions and cations respectively enter different chambers to generate potential difference. The system can realize the functions of power generation, salt solution desalination, hydrogen production, oxygen or chlorine production, acid production, alkali production and the like, and is an integrated system capable of synchronously realizing multiple functions.

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