| 摘要 |
PURPOSE:To instantly detect the deficiency of the reaction gas during operation and quickly stop the operation without damaging electrodes by monitoring the pressure difference between the input side of the reaction gas to a fuel cell and the output side during operation, and detecting an abnormality when the pressure difference becomes a preset value or below reacting to the load of the fuel cell. CONSTITUTION:A sequencer invariably receives the load level signal from a load detector 12, the fuel side passage pressure loss signal from a fuel pressure difference transmitter 7, and the air side passage pressure loss signal from an air pressure difference transmitter 8. Whether they are abnormal or not are judged based on the preset relational expression. An abnormality is detected when the pressure difference becomes a preset value corresponding to the load of the fuel cell 1 or below. An abnormality detecting device, which has the protective mode to instantly detect the deficiency of the reaction gas during the operation of the fuel cell 1 and quickly stop the operation without damaging electrodes or warning the situation approaching the deficient state, is obtained. |
