| 摘要 |
PURPOSE:To simplify constitution of each cycle line by providing it with at least one of an air side recycle line from the outlet of a heat exchanger to the inlet of an air pole and a fuel side recycle line from the outlet of a fuel pole to the inlet of a heat exchanger. CONSTITUTION:Hydrogen-rich fuel flows into a fuel pole 5A of a fuel cell 5 through a reformer, and high temperature and low temperature transformers. Fuel coming into the fuel pole 5A has conditions for temperature and humidity caused by the fuel cell 5. Therefore, this fuel is precooled in a heat exchanger 21, and is formed into fuel including water content corresponding to saturated steam pressure by means of a temperature detector 54 and a temperature control valve 23 through a heat exchanger 22. This fuel flows through a steam separator 24 and the heat exchanger 21 again to rise its temperature so as to satisfy temperature conditions and then to the fuel pole 5A. The steam separator performs control of water level by a level detector 55 and a drain valve 25 inside. Water from the drain valve 25 flows into a water processing device 26. |
