Gas Surveillance
Infrared lenses are the key components in gas detection instruments, enabling the precise identification and quantification of various industrial gases.
Many industrial gases have unique absorption characteristics in the infrared spectrum. Infrared lenses are designed to collect and focus infrared radiation passing through the gas-filled environment.
As the infrared rays interact with the gases, specific wavelengths are absorbed according to the gas composition.
The lenses then direct the modified infrared signals to detectors. By analyzing the changes in the infrared spectrum, the type and concentration of the gases can be accurately determined.
This helps industries to monitor gas emissions, ensure workplace safety, and comply with environmental regulations, making infrared lenses indispensable in industrial gas detection processes.
Principle-based Detection
The application is rooted in the principle that different gases have unique infrared absorption spectra. Infrared lenses are at the forefront of the detection system. They are designed to focus infrared radiation emitted by a light source onto a gas-filled sample cell. As the infrared beam traverses through the gas, certain wavelengths are absorbed by the gas molecules based on their chemical composition. For example, methane, a common industrial gas, has characteristic absorption bands in the infrared region. The infrared lens then collects the transmitted infrared radiation, which has undergone changes in intensity and spectral distribution due to gas absorption, and directs it towards a detector.
On-line Monitoring in Industrial Processes
In industrial production lines, such as in petrochemical plants or power generation facilities, real-time gas monitoring is crucial. Infrared lenses are integrated into continuous monitoring gas analyzers. These analyzers are installed at key points in the production process, like at the outlet of reactors or along gas pipelines. The lenses continuously capture infrared signals from the gas flow, allowing for immediate detection of any abnormal gas concentrations. If there is a sudden increase in the concentration of harmful gases like carbon monoxide, the system can quickly trigger alarms, enabling operators to take prompt corrective actions to prevent potential safety hazards or environmental pollution.
Leak Detection
For detecting gas leaks in industrial settings, infrared lenses are used in portable or fixed-mounted leak detection devices. In large - scale industrial complexes with numerous pipelines and storage tanks, a small gas leak can have serious consequences. Devices equipped with infrared lenses can scan the area, and when they detect an abnormal infrared signature indicating the presence of leaked gas, they can accurately pinpoint the location of the leak. This non - contact detection method is highly efficient, as it can cover large areas quickly and safely, without the need for direct physical contact with potentially dangerous gases.
