Infrasound method is the most reliable and sensitive pressure pipeline leakage monitoring technology at present. When the pipeline leaks, it will produce a variety of frequencies of acoustic signals. Among them, infrasound wave has the characteristics of long wavelength, low transmission attenuation and strong penetration. It can propagate tens of kilometers or even hundreds of kilometers along the pipeline. Infrasound pipeline leakage monitoring system installs infrasound sensors at selected monitoring locations. Acoustic monitoring terminal (ACU) collects infrasound sensor signals and transmits them to leak monitoring host after time synchronization and signal processing. The leak monitoring host can judge whether the pipeline is leaking in real time. When the pipeline leaks, the leakage location is calculated according to the pipeline topology and the time difference of the ACU sensor receiving infrasound.
ISafe-LD100 pipeline leakage monitoring system adopts the current international leading infrasound pipeline leakage real-time monitoring technology, which can accurately and quickly detect oil and gas pipeline leakage and determine the location of leakage point. The iSafe-LD100 system has the advantages of high sensitivity, low false alarm rate and accurate positioning.
Wet and dry high performance infrasound sensor technology;
Advanced noise and interference signal processing methods;
High precision time synchronization technology;
Accurate Sound Velocity Compensation and Leakage Location Estimation Method;
Long-term leakage infrasound data accumulation and modeling;
Leakage model optimization technology in real environment.
