Sealing and connecting device for pumping pipeline of gas compressor of gas turbine

The utility model relates to the technical field of pipeline sealing, and discloses a gas turbine compressor extraction pipeline sealing connection device which comprises a first pipeline and a second pipeline, the outer wall of the first pipeline and the outer wall of the second pipeline are fixedly sleeved with connecting rings, and the outer side of the first pipeline and the outer side of the second pipeline are slidably sleeved with supporting rings. Clamping rings are fixedly connected to the outer wall of the connecting ring and the outer wall of the supporting ring, the two clamping rings are fixedly connected through a clamping hoop, clamping plates are fixedly connected to the side walls of the two clamping hoops, a sliding cavity is formed in the inner wall of the clamping plate located on the upper side, and a sliding block is slidably connected to the interior of the sliding cavity; the side walls of the opposite sides of the sliding block and the sliding cavity are fixedly connected with the sam