Modular reducing pipeline inner plugging device, driving mechanism and coordination ring
A technology of driving mechanism and occluder, which is applied in the direction of pipe components, mechanical equipment, pipes/pipe joints/fittings, etc. It can solve the difficult plugging operation of large-diameter and high-pressure pipelines, and the internal occluder cannot complete the plugging task , the radius of the internal occluder is very strict, etc., to achieve good passability and plugging adaptability, high plugging pressure, and improved load distribution
Pending Publication Date: 2021-09-17
CHINA PETROLEUM & CHEM CORP +1
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The invention discloses a modular reducing pipeline inner plugging device, a driving mechanism and a coordination ring. The plugging device comprises a sealing barrel, a pressing mechanism, universal joints and the like; and the pressing mechanism is of a deformable serial connection structure formed by connecting a plurality of reducing modules through universal joints and is installed in the sealing barrel. During plugging operation, the sealing barrel can be pressed on the inner wall of a pipeline through the reducing modules to complete sealing operation. According to a plugging system, a hydraulic system is adopted for providing power, and a complex gas supply system is not needed; and reducing mechanism bodies in the reducing modules adopt a plugging mode of combining spring steel and a sealing flexible material, so that the plugging device has very good structural strength and has higher plugging pressure than a common plugging device.
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