Water plugging device for petroleum pipeline maintenance
A technology of oil pipelines and water stoppers, which is applied in the direction of pipe components, pipes/pipe joints/fittings, mechanical equipment, etc., which can solve problems such as easy blockage of pipes, failure of water blocking, and unclean dismantling, so as to ensure the sealing effect , Guaranteed plugging performance and good sealing effect
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[0022] Example 1
[0023] like figure 1 and figure 2 As shown, this embodiment includes an airbag body 1 and an exhaust pipe 4 opened at the end of the airbag body 1 . A plurality of grooves 2 are opened on the outer circumferential wall of the middle part of the airbag body 1 , and in the grooves 2 Two elastic metal sheets 9 are arranged at intervals, and a reinforcing pad 8 is fixed on the inner curved portion of the elastic metal sheet 9 . When the airbag body 1 is inflated, the two elastic metal sheets 9 deform along the airbag body 1 . radial outward expansion.
[0024] When the drainage pipe is blocked, the present invention makes the following improvements for the protruding dirt on the inner wall of the pipe, and replaces the existing cylindrical outer wall with an airbag body 1 with a plurality of annular grooves 2 in the middle. , so that the dirt on the inner wall of the pipeline has a certain placement space when it is in contact with the airbag body 1, so as t...
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