HUMIDIFICATION APPARATUS FOR POLYMER ELECTROLYTE FUEL CELL STACK

摘要

PURPOSE: A humidification apparatus for polymer electrolyte fuel cell stack is provided, to enable the humidification amount to be controlled for saving the wave required for humidification by employing a multiple spraying method and to save the additional energy required for maintaining the temperature of a humidifier by employing a dual path where the cooling water of a high temperature passes. CONSTITUTION: The humidification apparatus is such that the reaction gas is supplied through a gas introduction pipe(11), its flux is controlled by a flux control system(12), the moisture is supplied to the reaction gas by a humidifier(13), and the humidified reaction gas is supplied into a fuel cell(15) through a gas supply pipe(14); and the exhaust gas exhausted from the inside of the fuel cell after the reaction is exhausted through a back pressure control system(17) controlling the operation pressure inside of the fuel cell(15) through a gas exhaust pipe(16). The humidification apparatus comprises a humidifier container where a front reaction gas supply pipe(18) where a gas is supplied from a gas supply device and a water supply pipe are connected with a rear reaction gas supply pipe(14) supplying the reaction gas into a fuel cell(15); and a spray device for finely spraying the gas supplied through the reaction gas supply pipe(18) and the water supplied through the water pipe.