Negative pressure type continuous photochemical reactor

The invention discloses a negative pressure type continuous photochemical reactor, which comprises a reaction kettle, and also comprises a plurality of circular tubes, an ultraviolet light source and a driving mechanism, the circular tubes are hollow, and each circular tube is provided with a first light filtering part and a second light filtering part; the plurality of ultraviolet light sources are respectively positioned in the corresponding circular tubes, and the length of the ultraviolet light sources is smaller than that of the first light filtering part or the second light filtering part; and the driving mechanism is used for synchronously driving the plurality of ultraviolet light sources to move between the corresponding first light filtering parts and the second light filtering parts. According to the negative pressure type continuous photochemical reactor provided by the invention, the driving mechanism can synchronously drive the plurality of ultraviolet light sources to move between the correspon