Pipe Inspection Wheel Layout for Stable Multi-Sensor Access
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Solution Overview
Problem
Existing pipeline inspection methods, particularly for gas pipes in difficult-to-access areas like bridge structures, face challenges due to limited mobility and reliability, especially under adverse weather conditions, and the inability to carry sufficient sensors for comprehensive inspections.
Innovation Solution
An inspection device with a base unit and inspection unit, featuring a drive wheel and guide wheel arrangement, allowing for flexible and reliable movement along and on pipelines, equipped with sensors for thorough inspection, and adjustable components for adaptability to different pipeline conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If drones are used for pipeline inspection, then inspection coverage can be expanded, but reliability and inspection quality deteriorate due to inability to approach pipelines from all sides and limited sensor capacity
Solution Approach 1:
The patent introduces an intermediary system consisting of a launch device that deploys inspection devices (such as pigs or robots) into the pipeline. This intermediary mechanism allows the inspection device to be delivered to difficult-to-access pipeline locations without requiring direct human access or drone proximity, thereby maintaining both versatility in reaching various pipeline sections and reliability through controlled deployment and comprehensive sensor integration
Solution Approach 2:
The inspection device is designed with multi-functionality, incorporating various sensor types (acoustic, electromagnetic, optical, etc.) and multiple inspection capabilities within a single device. This universal design allows one device to perform comprehensive inspections covering multiple parameters and conditions, replacing the need for multiple specialized devices and ensuring reliable data collection across diverse pipeline environments
2Adaptability or versatility
If inspection devices are made mobile to reach difficult-to-access areas, then adaptability improves, but reliability deteriorates due to movement instability and external influences
Solution Approach 1:
The launch device acts as a stable intermediary platform that remains stationary while deploying the inspection device into the pipeline. This separation allows the launch device to provide stable, controlled deployment without being subject to the same mobility-related instability, while the inspection device itself is designed to be self-contained and stable during its inspection operation
Solution Approach 2:
The inspection device incorporates dynamic adaptation capabilities through adjustable components such as variable wheel configurations, adaptable sensor positioning, and flexible mounting systems. These dynamic features allow the device to adjust to different pipeline geometries and conditions while maintaining stable operation and reliable inspection quality throughout the inspection process
3Reliability
If multiple sensors are integrated for comprehensive inspection, then inspection quality improves, but device complexity increases
Solution Approach 1:
The patent combines multiple sensor types and inspection functions into a single integrated inspection device. By merging acoustic sensors, electromagnetic sensors, optical sensors, and other detection systems into one unified platform with common power supply, data processing, and communication systems, the device achieves comprehensive inspection capability while managing complexity through integration rather than separate systems
Solution Approach 2:
The inspection device is designed as a universal platform that can perform multiple inspection functions simultaneously using different sensor types. This multi-functional design allows a single device to conduct comprehensive inspections covering structural integrity, corrosion, leaks, and other pipeline conditions, thereby improving inspection quality without requiring multiple separate devices that would increase overall system complexity
4Measurement precision
If inspection devices are designed for specific pipeline conditions, then inspection precision improves, but adaptability to different pipeline geometries deteriorates
Solution Approach 1:
The inspection device incorporates dynamic and adjustable components including variable wheel configurations that can adapt to different pipeline diameters, adjustable sensor positioning systems that can optimize detection angles for different geometries, and flexible mounting mechanisms. These dynamic features allow the device to maintain precise measurements across various pipeline conditions by adapting its configuration rather than requiring separate devices for each geometry
Solution Approach 2:
The device utilizes parameter changes in its design, such as variable wheel diameters, adjustable sensor distances from the pipeline surface, and configurable inspection speeds. By allowing these parameters to be changed based on the specific pipeline geometry being inspected, the device maintains measurement precision across different conditions while achieving broad geometric adaptability
Data Source
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AI summary
The invention relates to an inspection device (10) for inspecting at least one pipeline (11), comprising a base unit (12) and an inspection unit (13), wherein the inspection unit (13) comprises at least one sensor element (14) for inspecting the pipeline (11) and wherein the base unit (12) comprises a drive unit (15), the drive unit (15) further comprising at least one drive wheel (16) and at least one, in particular electric, drive (17), wherein the drive (17) is operatively connected to the drive wheel (16) in such a way that the drive wheel (16) can be driven by the drive (17) and wherein the base unit (12) further comprises a support element (20) and at least one guide wheel (19) for guiding the inspection device (10) along the pipeline (11), wherein the inspection unit (13) is at least partially supported by the support element (20).