NOVELTY - The hydrogen recovery equipment (6) has purge flow path (11), dehumidifier (61), recovery tank (62), and heating-and-cooling unit (63). The purge flow path is cooled rather than the dehumidifier by an endothermic reaction when hydrogen occlusion alloy discharges hydrogen. The heating-and-cooling unit contains a hydrogen occlusion alloy (63a), and heats the tank by an exothermic reaction when the alloy occludes hydrogen.    USE - For recovering hydrogen purged from fuel cells of fuel cell systems used as power source of electric vehicles.    ADVANTAGE - The hydrogen recovery equipment decreases the consumption of electrical energy by setting a structure which can heat or cool the dehumidifier or tank without providing an electric heater or cooler, by using the heat generated by occlusion-discharge of hydrogen gas. Dehumidification is carried out using a simple structure, which lowers the installation cost. The recovery portion is inserted into the heating-and-cooling portion. Hence, the heating surface of the recovery portion and the heating-and-cooling portion increases and the recovery portion can be heated or cooled rapidly.    DETAILED DESCRIPTION - The hydrogen recovery equipment (6) has a purge flow path (11), a dehumidifier (61), a recovery tank (62) provided at the downstream side of the dehumidifier, and a heating-and-cooling unit (63). The hydrogen gas purged from the anode side of the fuel cell flows through the purge flow path. The dehumidifier separates the moisture content contained in the hydrogen gas flowing through the purge flow path. The recovery tank contains a hydrogen occlusion alloy (62a) for occluding the dehumidified hydrogen gas. The purge flow path of the upstream side is cooled rather than the dehumidifier by an endothermic reaction when the hydrogen occlusion alloy discharges hydrogen. The heating-and-cooling unit contains a hydrogen occlusion alloy (63a), and heats the recovery tank by an exothermic reaction when the hydrogen occlusion alloy occludes hydrogen.    DESCRIPTION OF DRAWING(S) - The figure shows the explanatory drawing of the fuel cell system equipped with the hydrogen recovery equipment. (Drawing includes non-English language text).    hydrogen recovery equipment (6)    purge flow path (11)    dehumidifier (61)    recovery tank (62)    hydrogen occlusion alloy (62a,63a)    heating-and-cooling unit (63)