Pressure-containing plugging device for pipeline and plugging method thereof
By creating an injection cavity near the pipeline leak point and injecting sealing adhesive, the problem of corrosive leakage in long-distance pipelines was solved, achieving stable sealing effect under high flow rate and highly corrosive media conditions, and improving the reliability and durability of the sealing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- BEIJING SHOUGANG CO LTD
- Filing Date
- 2025-12-03
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies cannot effectively solve the problem of corrosive leakage in long-distance pipelines, especially under high flow rate and highly corrosive media conditions. Traditional pressurized leak sealing methods cannot establish a stable fluid isolation zone while maintaining pipeline operating pressure, which makes the sealing material easy to be washed away and peeled off, affecting the reliability and durability of the leak sealing.
By using a bypass pipeline to connect the flow sections on both sides of the leaking pipe section, a pressure system is used to form an injection cavity near the leak point, and the sealing adhesive is injected into the injection cavity through the injection system to ensure the directional filling and structural integrity of the sealing material, forming a stable fluid isolation area.
While maintaining pipeline operating pressure, it significantly improves the reliability and durability of leak sealing, prevents the leak sealing structure from being eroded and peeled off, and avoids repeated stress caused by pressure fluctuations. It is suitable for high flow rate and highly corrosive media conditions.
Smart Images
Figure CN122407906A_ABST