| 摘要 |
PURPOSE:To make an electrode reaction uniform by separating a supply path of the reacting air from that of the cooling air, and by reversing the flowing direction of cooling air by detecting the temperature difference of a stack on an inlet side and an outlet side. CONSTITUTION:Manifolds 2 and 3 for an inlet and an outlet of the reacting air are installed on opposite sides of a cell stack 1. An exhaust hole 8, a circulating path 6, and an outside air inlet 10 are formed in this path. Manifolds 11 and 12 for the cooling air are also set, and an air inlet 15, an exhaust path 18 having a heat recover 17, and a flowing path switching damper 19 are installed in this path. The damper 19 is switched by the temperature difference of temperature detectors 21 and 22 installed on the inlet side and the outlet side. Therefore, since the coolng air is supplied from the high temperature side of the stack, the electrode reaction is made uniform, and the loss of an electrolyte is decreased by separating the supply path of the reacting air from that of the cooling air. |
