Pipe Gasket X-Ray Scanning for Non-Destructive Joint Inspection
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Solution Overview
Problem
Existing non-destructive inspection methods for rubber gaskets in pipe joints are inadequate, failing to provide detailed analysis of the condition and proper placement, leading to potential fluid leakage and associated environmental, health, and financial risks.
Innovation Solution
An x-ray scanner system with a carriage, x-ray generator, detector board, and axial rotation apparatus that allows for non-destructive inspection of gaskets by transmitting x-ray energy through the pipe wall and capturing radiographic images of the gasket, including a collimator to direct energy and a computer for image conversion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If visual and videographic inspections are used to inspect gaskets, then the inspection process is simple and non-invasive, but the level of detailed analysis of gasket condition and placement is inadequate
Solution Approach 1:
The patent replaces visual and videographic inspection methods with an electromagnetic field-based X-ray inspection system. The X-ray generator emits electromagnetic radiation that penetrates the pipe wall and gasket, allowing detailed internal imaging without physical contact or invasive procedures. This substitution enables high-resolution detection of gasket defects, placement accuracy, and material composition while maintaining non-invasive inspection.
Solution Approach 2:
The patent introduces an intermediary detection system consisting of a detector board positioned inside the pipe lumen that captures X-ray radiation transmitted through the gasket and pipe wall. This intermediary detection mechanism converts electromagnetic radiation into detectable signals, enabling detailed analysis of gasket conditions without requiring direct visual access or invasive sampling methods.
2Measurement precision
If X-ray energy is transmitted through the pipe wall to inspect the gasket, then detailed imaging of the gasket is achieved, but the system complexity increases due to the need for X-ray generator, detector board, and image conversion software
Solution Approach 1:
The patent integrates multiple functions into a unified inspection system where the X-ray generator serves both as the radiation source and as a structural component of the inspection apparatus. The detector board performs multiple functions including radiation detection, signal conversion, and image capture. The computer system handles both data processing and image generation, creating a multi-functional system that reduces the need for separate dedicated components for each function.
Solution Approach 2:
The patent employs a nested configuration where the detector board is positioned inside the pipe lumen, nested within the pipe structure. The X-ray generator is positioned outside the pipe wall, with the pipe wall itself acting as a containment structure. This nesting arrangement allows the inspection system to utilize the existing pipe structure as part of the inspection apparatus, reducing the need for additional external components and simplifying the overall system architecture.
3Measurement precision
If the X-ray sensor is positioned inside the pipe lumen above the gasket, then direct detection of gasket anomalies is enabled, but the pipe wall thickness must be accounted for in the X-ray energy transmission
Solution Approach 1:
The patent employs parameter changes by adjusting the X-ray energy levels and detector sensitivity settings according to the specific pipe wall thickness and material composition. The system can modify operational parameters such as X-ray voltage, current, and exposure time to optimize penetration through varying wall thicknesses while maintaining adequate image quality for gasket defect detection. This parameter adjustment capability enables the system to adapt to different pipe specifications without requiring physical modification.
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 high-quality, detailed non-destructive inspection of gaskets, identifying anomalies and ensuring proper placement, thereby preventing fluid leakage and enhancing safety and reliability of pipe connections.
Implementation Method 1
an x-ray generator, a computer that controls the operation of the x-ray scanner, and a cantilever extending from the top of a support structure. The cantilever has mounted on its bottom side an x-ray detector board including an x-ray sensor
Implementation Method 2
A collimator is connected to the x-ray generator and directs x-ray energy upward to the x-ray sensor on the x-ray detector board
Data Source
AI summary
An x-ray scanner for non-destructive inspection of gaskets on pipes is provided. The x-ray scanner has a carriage with a hemispherical cut-out opening sized to receive an open end of a pipe. The carriage also forms a housing that contains an x-ray generator, a computer that controls the operation of the x-ray scanner, and a cantilever extending from the top of a support structure. The cantilever has mounted on its bottom side an x-ray detector board including an x-ray sensor. The cantilever is positioned in the hemispherical cut-out, and the x-ray generator is below the cantilever and aligned with the x-ray sensor on the detector board.