Laser Leak Monitoring Solution for Stations (Including City Gate Stations, Pressure Regulating Stations, LNG Stations, and Pigging Stations)

System Overview

Work areas of gate stations, pressure regulating stations, storage tank areas, and LNG stations are all open-air spaces with large floor areas and numerous valves and flanges. Due to technical limitations, traditional monitoring equipment cannot achieve effective monitoring in open-air environments. As a result, even though equipment is installed in these locations, it fails to form reliable monitoring coverage. Manual inspection remains necessary, leading to low efficiency and poor results in safety management. Therefore, laser monitoring instruments need to be installed in these areas to continuously monitor gas leaks. This enables accurate data collection and ensures safety.

(I) Monitoring with Fixed Scanning Laser Gas Telemetry Instruments

Fixed scanning laser gas telemetry instruments are installed in zoned areas of these work scenarios. Through radar-like rotational scanning, they achieve 360° all-round monitoring, covering all process areas of the station. These instruments act as tireless inspectors, providing 24/7 uninterrupted leak monitoring and eliminating the need for frequent manual inspections.

Monitoring results are displayed visually with integrated video, allowing managers to "see" leaks in real time. Target markers on the monitoring screen indicate the current detection position, along with gas concentration data at that location.

The equipment can be installed outside process areas or at elevated vantage points. Once deployed, it can replace on-site manual inspections. It offers multiple scanning modes: covering preset ranges for comprehensive detection or conducting point-by-point inspections of high-risk areas. It enables intelligent scanning to locate leaks accurately, gaining valuable maintenance time for timely repairs and preventing accidents caused by escalating leaks.

(II) Monitoring with Fixed Reflective Laser Gas Telemetry Instruments

For single pipelines, LNG vaporizers, storage tanks, and other facilities, fixed reflective laser gas telemetry instruments can be used for overall monitoring.

These instruments are mainly designed for overall leak monitoring in long-distance spaces and cross-boundary leak monitoring. In long-distance areas, only one detector needs to be installed at one end to achieve long-range monitoring. We have installed 11 fixed reflective laser gas telemetry instruments at CNOOC Hengqin Natural Gas Terminal to conduct overall monitoring of pipelines.

In accordance with national standards, fixed point-type flammable gas detectors must be installed in gas stations. The passive optical fiber laser leak monitoring system can replace existing traditional flammable gas detectors by directly installing passive optical sensing terminals at the original mounting positions of traditional detectors.

The passive optical fiber laser leak monitoring system is a passive online monitoring solution, specifically designed for 24/7 remote online monitoring in areas without power supply, high humidity, or inaccessible for maintenance. Composed of a system host and passive optical sensing terminals, the system uses optical fibers for connection between the host and terminals, with a transmission distance of up to 20 kilometers.

Only passive optical sensing terminals need to be deployed on-site, enabling 24/7 online monitoring without any on-site power supply. Firstly, it solves the problem of unmonitored critical safety nodes and confined spaces due to lack of electricity. Secondly, it eliminates the risk of traditional power-consuming monitoring equipment becoming a potential ignition source for combustion or explosion accidents.

Would you like me to compile a English technical parameter comparison table for three types of laser equipment to help customers quickly compare key features such as monitoring range and power requirements