Fuel cell purge system and method

The disclosure relates to a fuel cell purge system and method. A method of operating a fuel cell stack including, prior to shut down, flowing dry purge gas from an inlet port to an outlet port of a fuel cell stack unit cell to purge water from the fuel cell stack and subsequently flowing dry purge gas from the outlet port to the inlet port to further purge water from the fuel cell stack. 本公开涉及燃料电池净化系统和方法。种操作燃料电池堆的方法包括：在停止运行之前，使干燥的净化气体从燃料电池堆单元电池的入口端口流向燃料电池堆单元电池的出口端口，以从燃料电池堆清除水，随后，使干燥的净化气体从出口端口流向入口端口，以进步从燃料电池堆清除水。