Energy storage system coupling phase change material and dissipation heat pipe

An energy storage system coupling phase change material(s) and dissipation heat pipe(s), comprising a plurality of energy storage units serially connected along a same central axis, each of the energy storage units comprising a heat charge flow channel, an annular heat release passage, and an annular energy storage passage disposed concentrically from inside to outside;

• and the heat charge flow channels, the annular heat release passages, and the annular energy storage passages of adjacent energy storage units being all fitted and connected through engaging grooves and being in communication with each other, wherein
• a dissipation pulsating heat pipe is disposed in the energy storage unit, and the dissipation pulsating heat pipe comprises a plurality of pulsating-heat-pipe branches uniformly arranged in a circumferential direction of the energy storage unit;
• each of the pulsating-heat-pipe branches comprises an evaporation section located in the heat charge flow channel, a transfer section located in the annular heat release passage, and a condensation section located in the annular energy storage passage, and adjacent pulsating-heat-pipe branches are sequentially in communication through a root port of the evaporation section;
• and a phase change material is filled in the annular energy storage passage, and an annular-heat-release-passage end cover and an annular-energy-storage-passage end cover are disposed on each of the energy storage units at a head end and a tail end.