The present invention relates to a humidifier for humidifying reactant
gases for a polymer electrolyte fuel cell system, and more particularly,
to the humidifier for humidifying reactant gas which adjusts an amount of
water for humidification while reducing electric power consumption and
size, thereby maintaining an optimal temperature and humidity of the
reactant gas supplied to a polymer electrolyte fuel cell. The humidifier
for humidifying reactant gases comprises a humidification vessel connected
to a reactant gas inlet pipe for supplying reactant gases thereto, a water
inlet pipe for supplying water thereto, and a reactant gas supplying pipe
for supplying the humidified reactant gas to the fuel cell are connected,
respectively, and a sprayer which is installed in the humidification
vessel and finely sprays the reactant gases and water which are supplied
to the humidification vessel.
