The invention relates to a high-power
solid oxide electrolysis reactor structure and a module thereof. The high-power
solid oxide electrolysis reactor structure comprises a central
assembly consisting of an air inlet base, a lower reactor core, a partition plate, an upper reactor core and an end cover which are stacked from bottom to top, the first air inlet side cover, the second air inlet side cover, the first air outlet side cover and the second air outlet side cover are fixed to the outer side of the center
assembly. The first air inlet side cover, the second air inlet side cover, the first air outlet side cover and the second air outlet side cover are the same in structure and are respectively provided with a first
airflow cavity and a second
airflow cavity which are isolated from each other. Four side surfaces of the air inlet base are respectively provided with two buffer cavities which are independently arranged. The lower reactor core and the upper reactor core are respectively formed by stacking a plurality of single battery units, and the partition plate is arranged between the lower reactor core and the upper reactor core. According to the high-power
solid oxide electrolysis stack structure and the module thereof, independent
gas supply of the upper reactor core and the lower reactor core is realized, uniform gas distribution of each battery channel of the high-power electrolysis stack is ensured, and the volume
power density of the electrolysis stack is improved.