Nangunguna 10 manufacturers of distributed fiber optic buried petroleum and gas pipeline vibration security monitoring systems-INNO

Underground pipelines are widely present in urban environments, such as water conservancy pipelines, mga pipeline ng langis at gas, thermal pipelines, atbp., and are a key part for the normal operation of the entire city. Especially with the rapid development of the economy and society, pipeline safety monitoring is increasingly valued by construction personnel and pipeline maintenance personnel in urban construction. Pipeline safety is related to the safety of people’s livelihoods and public assets, and more and more pipeline users are realizing its importance. Once a safety accident occurs in a pipeline, it can cause huge property damage and even loss of life. For the safety protection requirements of buried pipelines, traditional detection methods often rely on regular personnel inspections, which inevitably leads to untimely safety monitoring and even neglect of hazardous vibration sources. Pangalawa, in most scenarios, multiple pipelines intersect and multiple pipeline extension directions need to be detected simultaneously. Bilang karagdagan, traditional detection methods use artificial intelligence to identify vibration source patterns, but in practical application scenarios, vibration source patterns are much more common than pre fabricated items. At saka, in combination with reality, end users only need to monitor and predict the degree of damage caused by vibration sources to pipelines to make corresponding decisions. A multi-channel long-distance monitoring method for pipeline vibration warning is urgently needed to address the above issues.

Ibinahagi ang mga sensor ng fiber optic have many advantages, such as low loss, maliit na sukat, magaan ang timbang, mataas na sensitivity, malakas na paglaban sa kaagnasan, paglaban sa electromagnetic interference, hindi na kailangan ng power supply, at mababang gastos. They make up for the shortcomings of traditional electrical sensors in monitoring range and system reliability, and have developed rapidly in just a few decades. Matagumpay na nakamit ng mga tao ang pagsukat ng mga pagbabago sa temperatura, konsentrasyon, presyon, panginginig ng boses, displacement, at refractive index gamit ang iba't ibang fiber optic sensor. Sa ngayon, iba't ibang uri ng fiber optic sensor ay malawakang ginagamit sa mga larangan tulad ng perimeter security, aerospace, pagsubaybay sa pipeline, power engineering, at biomedical na pananaliksik. Sa kanila, ang pinakapraktikal na halaga ay walang alinlangan ang distributed fiber optic sensing system.

Ang distributed vibration sensing system uses a narrow linewidth laser as the system light source, and utilizes the coherent fading effect between backscattered Rayleigh scattering signals (RBS) to achieve distributed measurement of disturbance signals. When an external disturbance event acts on the optical fiber, the refractive index of the fiber core and the length of the fiber at the disturbance location will change, causing amplitude and phase changes in the RBS at that location. By analyzing the Rayleigh scattering curves before and after the occurrence of disturbance events, it is possible to detect dynamic disturbance events. This technology has high sensitivity, fast measurement response speed, and can achieve long-distance fully distributed dynamic monitoring without blind spots. Distributed fiber optic vibration monitoring systems have been widely used in fields such as tunnel gallery security positioning, power system cable monitoring, online monitoring of information pipelines, high-speed railway security systems, long-distance pipeline safety monitoring, and perimeter security of key facilities.

Ang komprehensibo monitoring system for oil and gas pipelines is equipped with optical cables inside the pipelines, na konektado sa fiber optic monitoring host. Nadarama ng mga optical cable ang mga signal ng panginginig ng boses ng mga pipeline ng langis at gas sa real time at ipinapadala ang mga ito sa host ng pagsubaybay sa fiber optic upang makita ang katayuan ng pagtagas ng mga pipeline ng langis at gas sa iba't ibang posisyon. Sa kanila, Ang mga signal ng panginginig ng boses ay maaaring higit sa lahat ay nagpapakita ng mga panlabas na panginginig ng boses at maging ang pagnanakaw at pinsala.

The optical cable also senses the acoustic signals of oil and gas pipelines in real time and transmits them to the fiber optic monitoring host to detect the leakage status of oil and gas pipelines at different positions. Sa kanila, acoustic signals can mainly reflect the situation of internal leakage. Set up a pressurization device to close the input and output ends on both sides of the oil and gas pipeline and actively pressurize them. The fiber optic monitoring host uses optical cables to perform high-precision acoustic monitoring and analysis on the pressurized oil and gas pipeline, finely detecting the damage status of the pipeline. By sealing and applying pressure, interference from other factors can be eliminated, allowing for more accurate detection of leaks.