Energy-saving device of wet desulphurization spray tower

The invention provides an energy-saving device of a wet desulphurization spray tower. The device is arranged on the tower wall of the wet desulphurization spray tower between an inlet of the wet desulphurization spray tower and a lowermost spray layer. The energy-saving device comprises a reinforcing plate fixed on the inner side of the tower wall, a bottom plate connected with the reinforcing plate, a side plate installed on the inner side of the bottom plate, pull rods, a sealing plate, vent pipes and flow guide plates; at least two pull rods are arranged between the side plate and the bottom plate; two ends of each pull rod are respectively connected with the inner wall of the side plate and the upper wall of the bottom plate; the inclined sealing plate is welded between the lower bottom surface of the bottom plate and the tower wall; at least two vent pipes are arranged on the tower wall below the bottom plate; the flow guide plates are arranged at two ends of the bottom plate; oneend of each flow guide plate is connected with the reinforcing plate, and a liquid discharge outlet is formed between the other end of each flow guide plate and the side plate. With the device adopted, the problem of accumulation of solids at the inlet of the tower can be effectively solved, a waterfall phenomenon can be avoided, flue gas resistance can be reduced, and energy conservation can berealized.