Simulation device for online repair of high-level valve seat

The utility model discloses a simulation device for online repair of a high-level valve seat, which comprises a simulation valve body and a valve seat assembly, the simulation valve body is of a three-way structure and comprises a horizontal channel and a vertical channel perpendicular to the horizontal channel, and the valve seat assembly is detachably sleeved in the horizontal channel; the valveseat assembly comprises a valve seat connecting piece of a hollow pipeline structure and two annular valve seat rings arranged on the valve seat connecting piece in a sleeving mode, two through holesare formed in the pipe wall of the valve seat connecting piece, and the valve seat connecting piece is communicated with the vertical channel through the two through holes; the two valve seat rings are sequentially arranged at the two horizontal ends of the two through holes in a sleeving mode in the horizontal direction, and the two valve seat rings communicate with the horizontal channel. According to the simulation dev