The application of the warning network (safety monitoring and early warning network system) in gas pipelines is crucial, which can significantly improve the safety of gas transmission, leakage prevention capabilities and emergency response efficiency. The following are its main application areas in gas pipelines:

1. Gas leak monitoring and positioning

Application:Deploy laser methane sensors, infrared spectrometers or distributed fiber optic sensors (DTS) to monitor the methane concentration along the pipeline in real time.

Combined with AI algorithm to analyze data, quickly locate the leak point (accuracy can reach ±1 meter).

Advantages:Prevent explosions, fires or poisoning accidents (such as urban underground pipeline leaks).
Reduce greenhouse gas emissions (the greenhouse effect of methane is 25 times that of CO₂).

2. Third-party construction damage warning (anti-digging)

Application:Install vibration sensors or acoustic wave monitoring equipment along the pipeline. When construction machinery such as excavators and pipe jacking machines approach, the warning network triggers sound and light alarms.

Linked with GIS geographic information system, warnings are automatically pushed to construction units and supervision platforms.

Advantages:Avoid gas explosion accidents caused by digging pipelines during construction (such as the gas explosion in Shiyan, Hubei in 2021).

3. Pipeline corrosion and structural integrity monitoring

Application:Use ultrasonic thickness gauges, electromagnetic eddy current sensors or intelligent pipe cleaners (PIGs) to detect pipe wall corrosion and cracks.

Data is transmitted to the cloud through the warning network to predict the remaining life.

Advantages:Prevent perforation or rupture caused by corrosion (especially for old pipelines).

4. Natural disaster emergency response

Application:Earthquake warning: Install acceleration sensors to automatically close valves along the line during earthquakes.

Geological disaster monitoring: Use tilt sensors or InSAR satellite data to warn of the threat of landslides to pipelines.

Advantages:Reduce secondary disasters (such as pipeline ruptures caused by earthquakes that lead to gas jet fires).

5. Abnormal pressure monitoring of high-pressure pipelines

Application:Real-time monitoring of pipeline pressure and flow data, combined with AI models to identify abnormal fluctuations (such as human gas theft or equipment failure).

Advantages:Prevent overpressure pipe burst or gas transmission interruption.

6. Intelligent inspection and drone collaboration

Application:UAVs equipped with infrared thermal imagers or gas detectors inspect pipelines at high altitudes or in remote areas.

The warning network automatically generates inspection reports and marks high-risk points.

Advantages:Replaces manual high-risk operations (such as pipelines in mountainous areas and swamps).

7. Cathodic protection system monitoring

Application:Real-time monitoring of pipeline cathodic protection potential to prevent electrochemical corrosion.

Abnormal data triggers the warning network alarm.

Advantages:Extend pipeline life and ensure anti-corrosion effectiveness.

8. Public safety and emergency evacuation

Application:When a leak occurs, the warning network links the community broadcasting system and mobile phone APP push to guide residents to evacuate.

Automatically start the fog cannon truck around the leak point to dilute the gas concentration.

Advantages:Reduce casualties (such as the Miryang gas explosion in South Korea).

9. Underground pipeline cross-risk warning

Application:In densely populated urban areas, the warning network integrates gas, water supply, cable and other pipeline data to prevent other construction from accidentally damaging gas pipelines.

Advantages:Reduce the risk of collaborative operations in areas where multiple pipelines intersect.

10. Data-driven predictive maintenance

Application:Based on historical data and machine learning, predict high-risk sections and maintenance cycles of pipelines.

Advantages:Shift from "passive repair" to "active protection" to reduce operation and maintenance costs.