Adaptive Pipeline Sealing Pressure for Porous Leak Repair
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Solution Overview
Problem
Pipeline leakage poses challenges due to varying pore sizes of leakage holes, making it difficult to determine the appropriate sealing pressure, which affects plugging efficiency and quality, and can impact the environment and social production.
Innovation Solution
An adaptive sealing device with a pressure protection mechanism, control mechanism, anti-retraction mechanism, and encircling sealing rubber cover, equipped with a strain gauge pressure sensor and numerical control pressure device, which adjusts sealing pressure based on pressure detection values and material properties to determine optimal inflation pressure using a machine learning model.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixed pressure sealing method is used, then the device structure is simple, but the sealing effectiveness is poor due to inability to adapt to different pore sizes and pressure conditions
Solution Approach 1:
The patent implements a dynamic pressure adjustment mechanism where the sealing pressure is not fixed but can be automatically adjusted based on detected pipeline pressure and leakage characteristics. The control mechanism modifies the inflation pressure of the rubber cover in real-time, transforming the static sealing system into a dynamic one that adapts to varying operational conditions, thereby resolving the contradiction between simple structure and effective sealing.
Solution Approach 2:
The patent incorporates a feedback control system where pressure sensors detect the pipeline pressure and leakage status, and this information is fed back to the control mechanism which adjusts the sealing pressure accordingly. This closed-loop feedback ensures that the sealing pressure remains optimal despite variations in pipeline pressure or leakage characteristics, improving sealing reliability without requiring overly complex manual adjustment mechanisms.
2Manufacturing precision
If manual pressure adjustment is used, then the device complexity is low, but the sealing precision is insufficient due to difficulty in judging pressure at leakage holes
Solution Approach 1:
The patent replaces manual mechanical pressure adjustment with an automated control system that uses pressure sensors and a control mechanism (potentially incorporating electronic or computational components). This substitution allows for precise measurement of pipeline pressure and automated calculation of optimal sealing pressure, significantly improving sealing precision while the modular design keeps the overall device complexity manageable.
Solution Approach 2:
The patent implements automatic adjustment of the sealing pressure parameter based on detected pipeline pressure and leakage characteristics. The control mechanism dynamically changes the pressure parameter rather than relying on manual estimation, enabling precise sealing adaptation to different pore sizes and pressure conditions. This parameter-based control approach achieves high sealing precision without requiring complex mechanical adjustment mechanisms.
3Reliability
If high sealing pressure is applied, then the sealing quality improves, but the risk of pipeline damage increases
Solution Approach 1:
The patent uses dynamic pressure adjustment to apply only the necessary sealing pressure rather than continuously high pressure. The control mechanism monitors pipeline pressure and leakage status, adjusting the sealing pressure in real-time to maintain effective sealing while avoiding excessive pressure that could damage the pipeline. This dynamic approach ensures sealing quality without permanently increasing damage risk.
Solution Approach 2:
The feedback control system detects pipeline pressure and leakage characteristics, then adjusts sealing pressure accordingly. When leakage is detected, pressure is increased to achieve sealing; when sealing is achieved or pipeline pressure changes, pressure is reduced to appropriate levels. This feedback-based pressure management maintains sealing quality while minimizing the risk of pipeline damage by avoiding unnecessarily high pressure.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The device effectively seals pipeline leakage by adaptively adjusting pressure, ensuring efficient sealing and minimizing environmental and production impacts, while being easy to operate and maintain.
Implementation Method 1
equipped with a strain gauge pressure sensor and numerical control pressure device
Implementation Method 2
numerical control pressure device, which adjusts sealing pressure based on pressure detection values
Data Source
AI summary
An adaptive sealing device for pipeline porous leakage. The device includes a pressure protection device and an encircling sealing rubber cover. The pressure protection device is used to pressurize and seal the pipeline by the encircling sealing rubber cover. The device further includes a control mechanism connected with the pressure protection device for adjusting the sealing pressure of the pressure protection device on the pipeline. The device further includes an anti-retraction mechanism connected with the pressure protection device and the control mechanism for limiting the pressure protection device and/or the control mechanism.