Acoustic Leak Localization in Pipelines Using Frequency Analysis
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Solution Overview
Problem
Conventional leak detection systems in piping systems, especially those used in subsea applications, face limitations such as limited range and inability to accurately localize leaks, leading to inefficient and inaccurate leak identification and remediation.
Innovation Solution
A system utilizing emitting devices to propagate acoustic pulses within the pipe, amplified by fluidic microphones, and detected by frequency sensing devices, interconnected with a control system and global positioning system to determine the exact location of leaks, with optional renewable energy sources and real-time communication for prompt remediation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional acoustic sensors are used for leak detection, then leak presence can be identified, but the detection range is limited to approximately 800 meters requiring numerous sensors
Solution Approach 1:
The patent applies universality by making a single sensor system perform multiple functions: it既可以 detect leaks at distances beyond 800 meters (extended range),又可以 determine the precise location of leaks (localization capability). This multi-functionality eliminates the need for numerous sensors distributed along the pipeline, as one sensor can monitor the entire pipeline length and identify both presence and position of leaks.
Solution Approach 2:
The patent transitions from one-dimensional leak detection (presence/absence) to two-dimensional detection (presence + location). By incorporating localization algorithms that process acoustic signal characteristics, the system adds the spatial dimension to leak detection, enabling identification of both whether a leak exists and where it is positioned along the pipeline.
2Measurement precision
If conventional acoustic sensors are deployed along the entire pipeline, then leak localization becomes possible, but the cost and complexity increase significantly
Solution Approach 1:
The patent extracts the localization capability from the physical distribution of multiple sensors and consolidates it into a single sensor combined with signal processing algorithms. Instead of using spatial distribution of sensors to achieve localization, the system extracts localization information from acoustic signal characteristics processed by a microprocessor, thereby reducing hardware complexity while maintaining localization accuracy.
Solution Approach 2:
The patent replaces the mechanical approach of distributing multiple physical sensors along the pipeline with an electronic/software-based solution. A single acoustic sensor combined with microprocessor-based signal processing and localization algorithms substitutes for the mechanical arrangement of multiple sensors, reducing system complexity and cost while achieving the same localization function.
3Reliability
If sensors are disposed on the exterior of the piping system, then detection is possible, but leaks throughout the entirety of the pipeline cannot be reliably identified
Solution Approach 1:
The patent uses the fluid medium inside the pipeline as an intermediary to transmit acoustic leak signals to a single sensor. By placing the sensor at one location and utilizing the fluid as a transmission medium, the system can detect leaks occurring at any position along the pipeline, achieving full coverage without requiring sensors distributed along the entire pipeline length.
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 continuous, accurate detection and localization of leaks along extensive piping systems, reducing economic losses and environmental hazards by providing precise leak location data for timely remediation.
Implementation Method 1
at least one emitting device disposed within the pipe and configured to propagate at least one acoustic pulse throughout an interior of the pipe
Implementation Method 2
at least one frequency sensing device distally disposed in relation to the at least one emitting device and configured to detect a frequency of the propagated acoustic pulse
Data Source
AI summary
The present disclosure is directed to a leak localization system configured to identify a leak within a pipe system and locate the same to a high degree of accuracy. At least one embodiment of such a leak localization system may comprise an emitting device configured in connection with an amplification device for the propagation of an acoustic pulse throughout the pipe. Distally disposed in relation to such emitting device may be at least one frequency sensing device and/or sensor cluster configured to detect the frequency of the acoustic pulse, with the intent of determining any changes thereto. Such frequency sensing device(s) and/or sensor cluster may be configured to generate sensor data which may used to localize an existing leak. Such sensor data may be communicated to a control center via an interconnected control system, wherein the localized leak may subsequently be communicated to the owner of the pipe for remediation.