Hydrogen bromide tail gas absorption device

The utility model discloses a hydrogen bromide (HBr) tail gas absorption device. The device comprises an absorption tank, a pump, a cooler and a venturi tube, wherein an outlet of the absorption tank is connected with an inlet of the pump; an outlet of the pump is connected with an inlet of the cooler; an outlet of the cooler is connected with an inlet of the venturi tube; and an outlet of the venturi tube is connected with an inlet of the absorption tank. The absorption efficiency of the device is high, the single-stage absorption rate can reach more than 95 percent, the concentration of HBr can reach up to 70 percent after the absorption, re-compression is not needed, the requirements of various users can be satisfied, and the production cost is reduced.