| 摘要 |
PROBLEM TO BE SOLVED: To keep a conductive ion concentration in cooling water low at any time by removing conductive ions in the cooling water with an ion removing filter provided in sub-piping regardless of an operation condition of a fuel cell. SOLUTION: In this system, the cooling water of pure water is made to flow through a solid polymer fuel cell 1 via main piping 3 and is made to flow through a heat exchanger 5 to be cooled, while the cooling water of pure water stored in a main tank 2 is simultaneously is made to flow through sub-piping 11 to remove conductive ions in the cooling water with an ion removing filter 6 provided in the sub-piping 11, so that a conductive ion concentration in the cooling water is kept not more than a prescribed value at any time. |
