Device for absorbing and washing sulfur trioxide-containing flue gas by combining three spraying modes

The utility model relates to the technical field of sulfur trioxide flue gas washing and absorbing devices, in particular to a device for absorbing and washing sulfur trioxide-containing flue gas by combining three spraying modes, which comprises a washer, a storage tank, a first spray thrower, a J-shaped second spray thrower and a third spray thrower, a first air inlet pipeline and a second air inlet pipeline are sequentially and fixedly installed at an inlet in the left side of the washer from top to bottom, a first sprayer is fixedly installed at the top of the first air inlet pipeline, and an inlet in the top of the first sprayer fixedly communicates with an air inlet pipeline. The first sprayer, the J-shaped second sprayer and the third sprayer are combined for use, so that the sulfur trioxide flue gas is absorbed and washed, the structure is reasonable and compact, the use is convenient, the cost can be saved, the washing effect is good, the absorption rate of sulfur trioxide in the sulfur trioxide flue