Supercritical water oxidation reaction container

The utility model belongs to the field of organic radioactive waste treatment, and particularly discloses a supercritical water oxidation reaction container which comprises an upper flange, a middle fixing plate and a lower reaction vessel, an upper flange boss is arranged at the bottom of the upper flange; a middle fixing plate center through hole is formed in the center of the middle fixing plate; a middle fixing plate inner sleeve is arranged at the bottom of the middle fixing plate; the lower reaction vessel comprises a reaction vessel shell and a reaction vessel inner container located in the reaction vessel shell, and a feeding and discharging pipeline hole and a purified water feeding and discharging pipeline hole which are communicated with the interior of the reaction vessel inner container are formed in the middle of the reaction vessel shell; an upper flange boss of the upper flange is inserted into a middle fixing plate center through hole of the middle fixing plate and a reaction vessel inner con