The utility model discloses a
compressed air and
carbon dioxide energy storage system of combining, utilize
piston ring, plugging support plate, sealing
washer and annular groove constitute novel air
film structure, can guarantee the sufficient rise of this novel air
film structure when
carbon dioxide cavity is in the negative pressure state, provide sufficient space for the filling of air in
air cavity, when
carbon dioxide cavity fills in carbon dioxide, can carry out sufficient compression to the air in
air cavity through novel air
film structure, wherein the
air cavity and carbon dioxide cavity space adjustment range is wider, and the
energy storage capacity is greater, and cooperation the setting of auxiliary spring can also effectively reduce the
friction loss between carbon dioxide cavity expansion and push novel air film structure down process and
breathing energy storage tank, and energy
storage tank adopts detachable design, can realize novel air film structure's convenient taking out replacement, can effectively reduce maintenance cost while reducing construction cost.