Three-phase internal circulating fluid-bed optical catalytic reactor

The utility model relates to a three-phase internal circulating fluidization bed optical catalytic reactor, particularly optical catalytic reactor used for treating organic waste water. At present, most of the existing fluidization bed optical catalytic reactors are push flow type, the retention time of reaction liquid is insufficient, the catalytic reaction and the catalyst recovery can be carried out in the same reaction zone, and the catalyst separation and the recovery are insufficient. The lower end of a quartz sleeve tube (1) of the utility model is vertically fixed to a lower piece (9) of a flange, an ultraviolet lamp (2) are arranged in the quartz sleeve tube (1), the lower end of an outer tube (4) is fixed in an upper piece (9-1) of the flange, the bottom part between the quartz sleeve tube (1) and the outer tube (4) is provided with an annular passage (14), an inner tube (3) is fixed to the position between the quartz sleeve tube (1) and the outer tube (4) and is placed in the middle of the top, the bottom, the left, and the right. The utility model has the advantages of reasonable design and simple structure, the reaction liquid in the reactor make internal circulating flow motion, the retention time of the reaction is sufficient, the reaction is more sufficient, the catalyst can be thoroughly separated and can be sufficiently recovered, and the discharging quantity of water reaching the standers can be increased.