COOLING EQUIPMENT FOR FUEL CELL

PROBLEM TO BE SOLVED: To provide cooling equipment for a fuel cell, which can properly perform liquid temperature regulation of a cooling liquid, can supply a large quantity of the cooling liquid of the temperature to be as low as possible, and accordingly enables operation of the fuel cell in a proper state. SOLUTION: The cooling equipment is constituted with a heat exchanger 3, which cools the primary cooling liquid discharged from a fuel cell FC; a temperature controller 13 which adjusts the temperature of the primary cooling liquid, which is supplied to the fuel cell FC by mixing the primary cooling liquid cooled by the heat exchanger 3 and the primary cooling liquid which bypasses the heat exchanger 3; an ion exchanger 14 using ion-exchange resin which removes the ion in the primary cooling liquid; and a supply control means, in which when the possible temperature control range of the primary cooling liquid by the heat exchanger 3 exceeds its limit; the primary cooling liquid, which bypasses the heat exchanger 3, is supplied to the ion exchanger 14; and when the temperature control possible range of the primary cooling liquid by the heat exchanger 3 is within its limit, the primary cooling liquid cooled by the heat exchanger 3 is supplied to the ion exchanger.