| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fuel cell system where reduction in the running cost necessary for preventing freezing and the prevention of damage to a device are made possible. <P>SOLUTION: The fuel cell system is provided with a water cycle system which comprises a water supply means 2 communicating with a fuel cell 1 and including a pipe 2a and a pump 2b to supply the fuel cell 1 with water, a water collection means 3 communicating with the fuel cell 1 and including a pipe 3a to collect water from the fuel cell 1, and a water tank 4 communicating with the fuel cell 1, the water supply means 2 and the water collection means 3 to cause water to flow backward; and a water-moving means which comprises an underground water tank 5 buried in the ground, a draining means 6 including a pipe 6a and an on-off valve 6b to drain the water in the water cycle system into the underground water tank 5, and a pumping means 7 including a pipe 7a and a pump 7b to pump the water stored in the underground water tank 5 into the water cycle system. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
