Multi-channel flow type photocatalytic reactor

The utility model discloses a multi-channel flow type photocatalytic reactor, belongs to the technical field of reactors, and solves the technical problems that a solid catalyst cannot be separated and fixed and a plurality of groups of reactions cannot be simultaneously carried out in the prior art. The reaction device comprises a base and a plurality of reaction units arranged on the base, a reaction chamber is formed in the reaction unit, a reaction assembly is arranged in the reaction chamber, the input end of the reaction assembly is connected with a pump body arranged outside the reaction unit, and the output end of the reaction assembly penetrates through the reaction chamber and is connected with an external pipeline; a light source is arranged at the upper part of the reaction chamber; the reaction assembly comprises a first flow channel and a second flow channel, and a first valve body, a first flow speed controller and a quartz reactor are sequentially arranged on the first flow channel in a commun