Active Resonant Sound Wave Detection for Gas Pipeline Defects
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Solution Overview
Problem
Current methods for detecting defects in industrial pipelines, such as gas pipelines, face challenges including low detection accuracy, high energy consumption, and large equipment volume due to passive resonant sound wave detection, which is ineffective for gas pipelines and lacks real-time positioning of defects.
Innovation Solution
A detection system and method that actively introduces sound waves into the pipeline to generate resonant sound waves, using a sound source device and signal receiver to compare target information with simulated reference information to determine defect features, allowing for accurate detection of defects in gas or fluid-filled pipelines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If passive resonant sound wave detection is used, then detection can be performed without active sound emission, but detection accuracy is poor and real-time positioning is not achieved
Solution Approach 1:
Instead of passively receiving sound waves and analyzing their characteristics to locate defects, the invention inverts the approach by actively emitting sound waves at multiple frequencies and analyzing the resonant responses. This inversion enables precise positioning by comparing emitted sound characteristics with received resonant signals, achieving real-time defect detection with high accuracy.
Solution Approach 2:
The invention utilizes mechanical vibration principles by emitting sound waves at specific frequencies that resonate with the pipeline's natural vibrational modes. By analyzing these resonant vibrations and comparing them with the emitted sound characteristics, the system achieves precise defect localization through the vibration response patterns.
2Adaptability or versatility
If global bandwidth sound emission is used to ensure comprehensive frequency coverage, then all possible resonant frequencies can be detected, but energy consumption increases and equipment volume becomes large
Solution Approach 1:
The invention segments the frequency spectrum into multiple discrete frequency components rather than emitting continuous global bandwidth sound. By dividing the frequency range into specific segments and emitting sound at these discrete frequencies sequentially or simultaneously, the system achieves comprehensive frequency coverage while reducing the total energy consumption and equipment size required for sound emission.
Solution Approach 2:
Instead of emitting sound across the entire global bandwidth, the invention applies partial action by selectively emitting sound at specific frequencies that are most likely to resonate with the pipeline. This partial frequency coverage is sufficient for detecting defects while significantly reducing energy consumption and equipment requirements compared to full bandwidth emission.
3Adaptability or versatility
If multiple signal receivers are deployed along the pipeline to improve detection coverage, then defects can be detected at various positions, but the cost of the detection process increases significantly
Solution Approach 1:
The invention makes the sound emission device universal by enabling it to perform multiple functions: emitting sound waves, analyzing resonant responses, and determining defect positions. By making the emission device multi-functional and capable of comprehensive frequency analysis, the system achieves wide detection coverage without requiring multiple separate signal receivers, thereby reducing overall system complexity and cost.
Solution Approach 2:
The sound emission device serves itself by using the same device that emits the sound waves to also analyze the resonant responses and detect defects. This self-service approach eliminates the need for separate signal receivers deployed along the pipeline, reducing the number of components required while maintaining comprehensive detection coverage.
4Measurement precision
If large area of road is dug to install multiple signal receivers, then comprehensive detection can be achieved, but inconvenience to people walking or driving increases
Solution Approach 1:
The invention extracts the essential detection function from the complex multi-receiver system and concentrates it into a single location. By using a single sound emission device that can perform comprehensive frequency analysis and resonant signal processing, the system achieves the same detection capability without requiring multiple receivers installed along the pipeline, thereby avoiding road disruption and inconvenience to pedestrians and drivers.
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
This approach enables accurate and efficient detection of defects in real-time, reducing equipment costs and energy consumption while improving detection accuracy, allowing for precise localization of defects in gas pipelines.
Implementation Method 1
A sound source device disposed at the first port and configured for providing and inputting a sound through the first port into the accommodating space to generate a resonant sound wave
Implementation Method 2
a signal receiver disposed at the second port; The signal receiver is configured for receiving the resonant sound wave to obtain target information
Data Source
AI summary
A sound source device and a signal receiver are disposed at first and second ports of a target object, respectively. A sound of a specific frequency of the sound source device is introduced into the target object to generate a resonant sound wave. A computer simulates a signal generated when the resonant sound wave is received by the signal receiver and regarding the signal as reference information. The reference information comprises first data having characteristics of the resonant sound wave, and data having features of an imaginary defect formed on the target object. The features of the imaginary defect correspond to the characteristics of the resonant sound wave. When the target object has a real defect, the sound of the specific frequency of the sound source device is introduced into the target object. Features of the real defect are derived by comparing the first data with the second data.