| 摘要 |
PURPOSE:To enhance the quality of cell cooling water to prevent the blinding of a cell cooling pipe and to lengthen the life of a fuel cell by treating original water and condensed water in the first water treatment unit, and treating this treated water and high quality blowdown in the secondary water treatment unit. CONSTITUTION:Original water 25 is stored in the primary water storage tank 33, and supplied to the primary water treatment unit 34 for treatment of filtration, coagulating sedimentation, ion exchange, decarbonation, and adsorption to obtain pure water 35. The pure water is stored in the secondary water storage tank 3, and supplied to the secondary water treatment unit 37 for treatment of filtration, adsorption, ion exchange, and degassing to obtain high quality cooling water, and used to cool a fuel cell 1. A part of the cooling water is returned to the secondary water storage tank 36 as blowdown 32. Fuel electrode condensed water 21 and air electrode condensed water 22 are joined together and returned to the primary water storage tank 33. Reformer condensed water 15 is treated in an organic material (such as methanol) treatment unit 38 using hydrogen peroxide and ultraviolet radiation unit, and returned to the primary water storage tank 33. Thereby, high quality cooling water is constantly supplied to the fuel cell 1. |
