| 摘要 |
PROBLEM TO BE SOLVED: To provide a fuel cell power generating device with a cell cooling water system allowing cell cooling water for a fuel cell main body to be stably supplied in small height of the device and capable of being manufactured at low cost. SOLUTION: This fuel cell power generating device is provided with a cooling water circulation and supply system having the fuel cell main body 1, a steam separator 2 for introducing two-phase flow from a cell cooling mechanism 1c and separating it into steam and cooling water, and a cooling water circulation pump 3 for circulating and supplying the cooling water stored in the steam separator 2 into the cell cooling mechanism 1c. An external cooling water branch circuit incorporating a heat exchanger 5B and a branch water pump 11 is provided between the steam separator 2 and the suction side of the cooling water circulation pump 3, and a part of the cooling water fed from the steam separator 2 is branched and cooled by external cooling water to keep the cooling water to be sucked into the cooling water circulation pump 3 at a low temperature. |
