Flue gas flow equalizing and guiding assembly of selective catalyctic reduction (SCR) denitration reactor inlet

The invention relates to a flue gas flow equalizing and guiding assembly of a selective catalyctic reduction (SCR) denitration reactor inlet, belonging to the technical field of flue gas denitration of heat power stations. The inlet flue gas flow equalizing and guiding assembly comprises a bend, two straight flue ducts and flow guide plates, wherein the two straight flue ducts are used as connection arcs of the inner and the outer pipe walls of the bend; and a plurality of the flow guide plates are connected with arcs of pipelines positioned at the inner side and the outer side of the bend and sequentially arranged on the internal bend of a gas flow denitration pipeline from inside to outside in a mutually parallel way. The invention can solve the problem of the flue gas flow equalizing and guiding of the bend with great sectional area change by adopting the arc-shaped flow guide plates with different radiuses, optimizes the speed distribution of the SCR denitration reactor inlet and enhances the catalyst uti