More and more attention has been paid to safety production in the industrial field. At present, it is a trend to combine point-based micro-monitoring for gas leaks with large-scale macro monitoring to form a three-dimensional monitoring system. Gas cloud imaging technology has made up for some monitoring gaps and blind areas existing in the current technical means. It is widely used in electric power, warehouse, metallurgy, traffic tunnel and petrochemical industry, which helps to enhance the safety emergency response capability of "prevention in advance, assistance in the event and disposal after the event", grasp the movement of more unknown hazardous gases, accumulate and gather patterns to get rid of the "cutthroat" blockade of Western countries and build a domestically produced, independently controllable three-dimensional security protection warning system. 24-hour real-time monitoring can continuously scan remote areas or inaccessible locations to eliminate potential safety and environmental hazards caused by gas leak.
Background: With the rapid development of industrialization, gas leak accidents occur frequently, which poses a serious threat to people's lives and property. Therefore, It is crucial for real-time monitoring and warning of gas leaks!
Significance: Gas cloud imaging camera for gas leak monitoring technology provides a new means for gas leak monitoring, which has the advantages of real-time, fast and accurate. It is of great significance for preventing gas leak accidents and ensuring the safety of people's lives and property.
Principle of Gas Cloud Imaging
1.Gas cloud imaging technology captures cloud-like objects formed during gas leaks by cameras, and identifies and locates the source of gas leaks by image processing technology.
2.Gas cloud imaging technology can quickly respond to gas leak, provide intuitive location and scope of leakage, which helps to find and solve gas leak problems in time.
3.Based on gas concentration change and diffusion principle, by setting sensors in the monitoring area, gas leak detection technology monitors gas concentration in real time to determine whether there is a gas leak.
4.Sensor types include electrochemical, infrared, catalytic combustion, etc. The selection of suitable sensors depends on different gases and monitoring requirements.
Advantages and Applications
Large-scale, visual and global control
● Non-contact, remote, wide-area scanning, covering emissions/leaks from the ground to facilities to heights and inaccessible areas, safely and efficiently.
● Second-level, several to dozens of flammable and explosive gases, toxic and harmful gases, qualitative species, and semi-quantitative data are identified simultaneously
● Real-time graphic display of test results, visualization, large area monitoring.
● The dynamic distribution and diffusion trend of dangerous gases in the air are provided to find the source of leakage.
● The configuration can be freely combined, and the required species can be freely selected in the base and can be identified at the same time.
● Semi-quantitative report concentration.
● The accuracy is relatively high.
Application scenarios and requirements
1.Petrochemical industry
There are a large number of gas pipelines and storage tanks in this industry, and there is a high demand for gas leak monitoring to ensure production safety and environmental compliance.
2.City gas system
Gas pipelines are widely distributed and related to the lives of residents, so there is a high demand for the rapid detection and location of gas leak.
3.Nuclear facility
Once various gas media in nuclear facilities leak, serious accidents may be triggered, therefore, it requires high-precision and high reliability gas leak monitoring technology.
Research status at home and abroad
● China started relatively late in gas leak monitoring technology, but in recent years it has developed rapidly and achieved a series of research results. The gas leak monitoring is mainly based on technologies such as sensors, spectral analysis, and image processing.
● The current research status abroad is that gas leak monitoring technology has been studied earlier and its technology is relatively mature. The gas leak monitoring is mainly based on technologies such as hyperspectral imaging, laser radar, and mass spectrometry analysis, and it has achieved good results in practical applications.
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