HUMIDIFYING METHOD OF GAS IN SOLID HIGH POLYMER ELECTROLYTE FUEL CELL, HUMIDIFYING STACK STRUCTURE AND HUMIDIFYING NOZZLE

摘要

PURPOSE: To supply gas of a necessary humidifying degree to a fuel cell by accurately controlling an absolute moisture quantity of the gas without using a bubbler. CONSTITUTION: The inside of a stack is humidified by spraying water by gas. Humidifying manifolds 19 and 19' are arranged in the layering direction of stack plates 18, and are communicated with a gas passage. Inner tubes 10 to blow out water and outer tubes 11 to blow out gas are doubly held in a concentric shape, and duplex tubes 12 are constituted. Plugs 13 to be installed on the stack end plates 18 of a fuel cell are arranged on the outer periphery of an intermediate part of the outer tubes 11, and T-shaped pipes 15 are connected to the rear end of the outer tubes 11, and gas introducing passages 16 are bent, and the inner tubes 10 are penetrated in a straight line through to the T-shaped pipes 15.