| 摘要 |
A hydrogen circulation device for a fuel cell system is provided to minimize the consumption power of a hydrogen recirculation blower, to maintain the water balance of a fuel electrode side to be uniform and to prevent dry-out or flooding. A hydrogen circulation device for a fuel cell system recirculates hydrogen in the at least two first and n-th fuel cell stacks(100,200), wherein a hydrogen recirculation line(30) for the closed loop formation is connected to the supply manifolds(102,202) at the fuel cell side of the each fuel cell stack and the discharge manifold(104,204) of the each fuel cell stack, and the fuel electrode side supply and discharge manifolds and the hydrogen recirculation line for the closed loop formation are arranged in serial so as to form one closed loop circulation path. A hydrogen blower(400) is installed at the desired location of the hydrogen recirculation line for the closed loop formation. |
