The invention discloses a composite pressing
block type phase change heat storage gas-
solid hydrogen storage reactor. A whole structure is a cylindrical shell; the exterior of the reactor is coated with a
thermal insulation layer; the interior of the reactor is loaded with a
hierarchical porous tray convenient to dismount, the
hierarchical porous tray is used for placing a composite pressing block, and the top of the reactor is fixed with
hydrogen inlet and outlet pipelines. The top of the reactor is sealed with a large
flange, and for preventing a powdered composite pressing block from entering the inlet and outlet pipelines, filter screens only for gas to pass through are fixed at the top and the bottom of the
hierarchical porous tray respectively; the bottom of the tray is equipped witha stirring device. The composite pressing block is composed of an outer-circle
metal hydride and an inner-circle
phase change material. When a
hydrogen storage material absorbs hydrogen, released heat is absorbed by the
phase change material, and
latent heat is stored; when the reactor releases hydrogen, the
phase change material provides the heat to the
hydrogen storage material to complete a
dehydrogenation reaction. The reaction heat is recycled and used, an additional
heat exchanger is not need, the structure is compact, the operation is simple, and the reactor is suitable for portable compact hydrogen power
system application occasions, such as vehicle mounting, unmanned aerial vehicles, robots and the like.