Oil pipeline and gas pipeline facilities are often damaged by the third party. Large scale development and construction in various regions bring huge potential safety risks to oil pipeline and gas pipeline, and at the same time, it will cause considerable economic losses to the country. At present, the reliable and feasible scheme is to use the optical cable as a distributed sensor to set up the optical cable vibration early warning system. The system can obtain all the vibration conditions near the pipeline in real time through the front-end optical cable. The optical cable is both a sensor and a transmission channel. After the signal is processed through intelligent analysis and learning, it will send an alarm to the danger signal in time, inform the personnel on duty in advance, and stop the danger from happening Before birth.。

System structure diagram

Advantages of the system:

    Danone dt-m optical fiber alarm system is very suitable for long-distance pipeline protection. Because there is no power supply at the front end of the system and there is no electronic product, the whole system has strong anti-interference and anti-corrosion, which is very suitable for the use in the harsh environment in the field. The system has low maintenance cost and long service life.

Technical features:

    For example, the pipeline is protected by sections and controlled by levels. According to the 200m division of each defense area, there are 50 defense areas in total. Every 1.6km, there is a maintenance station, that is, a sub control center.

    The distance between the oil pipeline and the optical cable detection equipment is 0.5m, and the ground is 3-4m according to the depth of the pipeline. The sensing optical cable detects various abnormal vibration conditions of the buried part of the oil pipeline, and effectively eliminates external false alarms and interference sources through its own algorithm analysis. When the soil layer above the pipeline is abnormally loose, the sensing detection equipment immediately makes a judgment, and the defense area map screen of the alarm host in the central control room appears Alarm in this area .

    The total length of the oil pipeline project is 10km, the pipeline span is large, and the terrain is complex (mountains, hills, rivers). Dt-m optical fiber vibration alarm equipment is used, and the detection equipment is passive design, easy to maintain, and effectively reduces the construction cost.。