| 摘要 |
<P>PROBLEM TO BE SOLVED: To simply eliminate moisture gathered in a dehumidifier for dehumidifying purge hydrogen. <P>SOLUTION: A hydrogen supply device 1 comprises a hydrogen supply flow path 21 for supplying hydrogen stored in a high-pressure hydrogen tank 3 to a fuel cell 2; a hydrogen circulation flow path 22 for returning hydrogen discharged from the fuel cell 2 to the supply flow path 21; a discharge flow path 23 for discharging hydrogen from the circulation flow path 22; a hydrogen storage alloy tank 7 which stores the purge hydrogen discharged into the discharge flow path 23 and can supply the stored purge hydrogen to the fuel cell 2; dehumidifiers 10A, 10B which are disposed in the discharge flow path 23 and eliminate the moisture from the purge hydrogen; a flow path for drying 25 which is branched from the supply flow path 21 and passes hydrogen supplied from the hydrogen tank 7 into the dehumidifiers 10A, 10B; and a first switching valve 4 for switching over between the supply flow path 21 and the flow path for drying 25 according to the moisture amount in the dehumidifiers 10A, 10B. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
