STACK COOLING SYSTEM FOR FUEL CELL SYSTEM

摘要

PURPOSE: An apparatus for cooling a fuel cell stack is provided to increase an exchange period of a filter by controlling the conductivity increase of coolant, to reduce the heat loss through a coolant tank, and to improve thermal efficiency of a system. CONSTITUTION: An apparatus for cooling a fuel cell stack comprises: the fuel cell stack(10); a coolant tank(20); a coolant supply pipe(11) and a coolant discharge pipe(12) which connect the stack and the coolant tank; a pump(30) and a filter(40) which are installed on the coolant supply pipe; a heat exchanger(50) which is installed in the coolant discharge pipe; and a coolant tank connection pipe(12a) and a bypass pipe(12b) which are connected to the coolant tank and the coolant supply pipe.