Pipeline Inspection Sensor Cover with Cleaning Mechanism
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Solution Overview
Problem
Existing pipeline inspection methods face challenges in accurately determining defect types and extents due to harsh environments within aging pipelines, which can damage sensitive measurement equipment and render sensors unreliable.
Innovation Solution
A system and method utilizing a transport module with a sensor arrangement and a protective cover that includes a cleaning arrangement, allowing the sensor to move safely within the pipeline, take readings, and be cleaned using a fluid stream to maintain reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sensors are repeatedly moved through the pipeline to take readings at multiple locations, then inspection coverage is improved, but sensor reliability deteriorates due to contamination and damage from debris
Solution Approach 1:
A protective cover is introduced as an intermediary element between the sensor and the pipeline interior. The cover can be positioned in front of the sensor to shield it from debris during transport through the pipeline, while allowing the sensor to remain functional for taking readings when needed.
Solution Approach 2:
The protective cover is designed to be movable rather than fixed, allowing it to dynamically adjust its position. The cover can be moved to a protective position during transport to prevent contamination, and repositioned to allow sensor operation when readings are required, thus adapting to different operational phases.
2Measurement precision
If the sensor is exposed to the pipeline interior for measurement, then measurement accuracy is improved, but sensor contamination increases
Solution Approach 1:
The protective cover serves as a mediator that can be selectively positioned. When the sensor needs to take readings, the cover is moved out of the way to allow direct contact with the pipeline interior for accurate measurements. When not in use, the cover is positioned to protect the sensor from contamination by debris.
Solution Approach 2:
The system dynamically transitions between two states: a protected state where the cover shields the sensor during transport, and an exposed state where the sensor can contact the pipeline interior for measurements. This dynamic positioning allows the system to optimize for either protection or measurement accuracy depending on the operational phase.
3Object-affected harmful factors
If a protective cover is added to the sensor, then sensor protection is improved, but device complexity increases
Solution Approach 1:
The protective cover is designed as a flexible or thin-walled structure that can be easily moved into and out of position. This flexible design provides effective protection while adding minimal structural complexity to the sensor arrangement.
Solution Approach 2:
The cover is designed with movable capabilities, allowing it to transition between protective and non-protective positions. This dynamic feature, while adding some complexity, enables the system to adapt to different operational requirements, justifying the added complexity through improved functionality.
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
Enables effective internal pipeline inspections by protecting sensors from debris, ensuring accurate data collection, and maintaining equipment reliability despite harsh conditions.
Implementation Method 1
The cleaning arrangement may be selectively operable to direct a fluid stream at the sensor
Data Source
AI summary
A system and method for pipeline inspection may include a transport module having a sensor arrangement configured to carry one or more sensors, and it may be movable longitudinally through the pipeline and circumferentially around an interior of the pipeline. The sensor arrangement may include a sensor and a sensor cover selectively disposable over the sensor for isolating the sensor from contact with the inside surface of a wall of the pipeline. The sensor cover may include a cleaning arrangement disposed proximate the sensor for removing debris from the sensor.