Pipeline structure of refining reflux tower

The utility model discloses a pipeline structure of a refining reflux tower. A first gate valve is arranged on one side of a top end pipeline of the reflux tower; a second gate valve is arranged on the other side of the top end pipeline of the reflux tower; the first gate valve is connected with a first pipeline; the second gate valve is connected with a second pipeline; the other end of the first pipeline is connected with a ground trough recovery system; and the other end of the second pipeline is connected with the ground trough recovery system. The pipeline structure can be applied to the technical field of urea production; the pipeline structure of the refining reflux tower can recover copper liquid better, and solves the pressure problem of the copper liquid after pressure reduction; the possibility of blocking of the reflux tower is low; and the copper liquid can smoothly enter the ground trough recovery system. The pipeline structure of the refining reflux tower is reasonable in structure and easy to