Coupling system of supercritical carbon dioxide cycle power generation and lithium extraction from brine

A system for coupling supercritical carbon dioxide cycle power generation and lithium extraction from brine, the system comprising an absorption heat pump unit, a supercritical carbon dioxide cycle power generation unit, and a unit for extracting lithium from brine, wherein

• the absorption heat pump unit comprises a driving heat source inlet, a driving heat source outlet, a to-be-heated material inlet, and a heated material outlet;
• the unit for extracting lithium from brine comprises a brine inlet and a lithium extraction device, and the lithium extraction device comprises a raw material inlet, a heating medium inlet, and a heating medium outlet;
• the brine inlet is in communication with the to-be-heated material inlet of the absorption heat pump unit, and the heated material outlet of the absorption heat pump unit is in communication with the raw material inlet of the lithium extraction device;
• the supercritical carbon dioxide cycle power generation unit comprises a carbon dioxide cycle cold end outlet and a carbon dioxide cycle cold end inlet;
• and
• the carbon dioxide cycle cold end outlet is in communication with the heating medium inlet of the unit for extracting lithium from brine and/or the driving heat source inlet of the absorption heat pump unit, and the carbon dioxide cycle cold end inlet of the supercritical carbon dioxide cycle power generation unit is in communication with the heating medium outlet of the unit for extracting lithium from brine and/or the driving heat source outlet of the absorption heat pump unit.