Fuel cell power generating apparatus and operation method therefor
    1.
    发明授权
    Fuel cell power generating apparatus and operation method therefor 失效
    燃料电池发电装置及其运行方法

    公开(公告)号:US5853910A

    公开(公告)日:1998-12-29

    申请号:US827172

    申请日:1997-03-27

    摘要: A fuel cell power generating apparatus using a fuel cell (10) having a structure such that a cathode and an anode are disposed on opposite sides of a polymer electrolyte membrane, comprising: an air introduction passage (11) for introducing air to the cathode; an air discharge passage (15) for discharging, to the outside of the system, discharge gas containing reactant water generated at the cathode; a circulation passage (16) connected between the air discharge passage and the air introduction passage in order to again introduce at least a portion of the discharge gas flowing through the air discharge passage to the air introduction passage and thus to the cathode; a valve (17) provided for at least one of the air introduction passage and the air discharge passage; a temperature sensor (22) for measuring the temperature of the discharge gas from the cathode; an ampere meter (19) for measuring the level of an electric current output from the fuel cell; and a control unit (18) for controlling the degree of opening of the valve in accordance with the temperature of the discharge gas and the output level of the electric current measured respectively by the temperature sensor and the ampere meter. A portion of the discharge gas containing reactant water is circulated into the air introduction passage and thus to the cathode of the fuel cell to thereby humidify the electrolyte membrane, so that there is no need to supply water from the outside of the system. The apparatus is particularly suitable to be mounted on a vehicle.

    摘要翻译: 一种使用燃料电池(10)的燃料电池发电装置,其具有将阴极和阳极配置在高分子电解质膜的相对侧的结构,其特征在于,包括:空气引入通路(11),用于将空气引入阴极; 用于向系统外部排出含有在阴极产生的反应物水的排出气体的排气通道(15) 连接在排气通道和空气引入通道之间的循环通道(16),以便再次将通过排气通道的排放气体的至少一部分引入空气引入通道,从而进入阴极; 为空气引入通道和排气通道中的至少一个设置的阀门(17); 温度传感器(22),用于测量来自阴极的放电气体的温度; 用于测量从燃料电池输出的电流的电平的安培计(19); 以及控制单元(18),用于根据放电气体的温度和由温度传感器和安培表分别测量的电流的输出电平来控制阀的开度。 含有反应物水的排出气体的一部分循环到空气导入通道内,从而循环到燃料电池的阴极,从而使电解质膜加湿,从而不需要从系统外部供水。 该装置特别适用于安装在车辆上。