Three-eccentric center butterfly valve repairing and positioning device and three-eccentric center butterfly valve repairing and positioning structure

The three-eccentric center butterfly valve repairing and positioning device comprises a bottom plate, a mounting panel and a connecting rod, the mounting panel is obliquely arranged relative to the bottom plate, the connecting rod is located between the bottom plate and the mounting panel, and the two ends of the connecting rod are fixed to the bottom plate and the mounting panel respectively. The face, deviating from the connecting rod, of the installation panel is a valve body positioning face, and the included angle between the installation panel and the bottom plate is matched with the included angle between the valve seat conical face axis of the three-eccentric center butterfly valve and the valve body pipeline axis. After the valve body of the three-eccentric center butterfly valve is mounted on the valve body positioning surface, the pipeline axis of the valve body is perpendicular to the mounting panel, so that the conical surface axis of the valve seat can be perpendicular to the bottom plate, at th