The application discloses a volume-adjustable liquid supplementing tank and a carbon capture
system, and relates to the technical field of
carbon dioxide capture and transportation. The volume-adjustable liquid supplementing tank comprises a tank body, the tank body comprises a first chamber and a second chamber arranged in sequence, a plurality of unit chambers are arranged in the second chamber, the chamber volumes of the plurality of unit chambers are adjustable and the plurality of unit chambers are used for storing different solvents, each unit chamber is provided with a first liquid outlet, a liquid conveying
pipe in communication with the first chamber is connected to the first liquid outlet, an
electromagnetic valve is arranged on the liquid conveying
pipe, the first chamber is used for temporarily storing the solvents discharged from at least one unit chamber, and the first chamber is provided with a second liquid outlet. The volume-adjustable liquid supplementing tank can realize the supplement of the solution obtained by mixing a plurality of solvents according to a set ratio and the quantitative supplement of a single
solvent, and the volume of the unit chamber can be adjusted, the storage amount of the easily-consumed solvents is increased, and the liquid supplementing efficiency is ensured.