Nitrogen and hydrogen mixed gas humidification system

The invention discloses a nitrogen and hydrogen mixed gas humidification system which comprises a humidification tower and a nitrogen and hydrogen mixing system for conveying nitrogen and hydrogen mixed gas into the humidification tower, wherein packing is arranged in the humidification tower and used for dividing the inner part of the humidification tower into an upper part and a lower part; a mixed gas inlet and a steam inlet are formed on the side wall of the humidification tower above the packing; the nitrogen and hydrogen mixing system is connected with the mixed gas inlet through a mixed gas pipeline; the steam inlet is connected with a steam pipeline; a wet gas pipe is arranged in the humidification tower and penetrates through the packing; the top of the wet gas pipe is exposed from the top of the humidification tower; the bottom of the wet gas pipe is exposed from the bottom of the packing; and the top of the wet gas pipe is connected with an electric heater through a pipeline.