HUMIDIFIER FOR OPERATING POLYMER ELECTROLYTE FUEL CELL

摘要

PURPOSE: Provided is a humidifier which can reduce energy and volume necessary for humidification in gas supply for operating a polymer electrolyte fuel cell, and maintain humidity and temperature of reacting gas supplied to the fuel cell at optimum level. CONSTITUTION: The gas supply for operating a polymer electrolyte fuel cell consists of a gas inlet pipe; a flow controller; a gas feed pipe; a back pressure controller; a coolant controller; and a temperature controller of fuel cell. The humidifier comprises a humidifier container(20) connected to the gas feed pipe, water feed pipe(30), and fuel cell feed pipe(42); and an atomizer(26) for finely atomizing a gas(supplied by the gas feed pipe) and water(supplied by the water feed pipe(30)). The humidifier container(20) has double path(22), in which hot fuel cell coolant flows to heat water passing through the water feed pipe(30).