Fluctuation pipe dry gas sealing device with wide temperature application range

The utility model discloses a fluctuation pipe dry gas sealing device with a wide temperature application range. The fluctuation pipe dry gas sealing device is characterized by comprising an elasticity compensation assembly, a static ring and a movable ring, wherein the elasticity compensation assembly is arranged between a sealing press cover and a shaft, one end of the elasticity compensation assembly of a fluctuation pipe is provided with a base ring, the base ring is fixedly arranged on the sealing press cover, the end surface of the elasticity compensation assembly of the fluctuation pipe is embedded in an end surface groove of the base ring, the static ring is fixedly arranged at the other end of the elasticity compensation assembly of the fluctuation pipe, the movable ring is arranged at the outer end of the static ring, at least six movable press grooves are formed in the end surface, in contact with the static ring, of the movable ring, flanges between the two movable press grooves are sealing dams,