Chemical heat storage device

A chemical heat storage device comprising:

• a reaction vessel accommodating a heat storage material;
• a heat exchange flow path provided so that a heat-exchange fluid flows along an outer surface of the reaction vessel;
• and
• the chemical heat storage device being configured in such a manner that the reaction vessel is rotated and the heat storage material is agitated, by a flow force of the heat-exchange fluid, wherein
• the outer surface of the reaction vessel includes a fin facilitating heat transfer,
• the chemical heat storage device is configured in such a manner that the heat-exchange fluid flows while being in contact with the fin at the heat exchange flow path,
• the reaction vessel is divided into a plurality of reaction vessel portions, and
• the fin is provided at an outer surface of each of the plurality of reaction vessel portions and the reaction vessel portions which are adjacent to each other are connected to each other by the fin;
• an evaporative condenser recovering water vapor discharged from the heat storage material due to a dehydration reaction at the time of heat storage, the evaporative condenser supplying, to the heat storage material, water vapor performing a hydration reaction with the heat storage material at a time of heat release, and the evaporative condenser being configured to move together with the reaction vessel.