Current Location： Home > News > Chemical Knowledge > Analysis of the principle of flue gas analyzer, air purification starts from us

[Chemical Knowledge]：Analysis of the principle of flue gas analyzer, air purification starts from us

Read： 751 Time：20months ago Source：Transform the World with Simplicity

Flue gas analyzer is a kind of high-tech equipment widely used in the field of environmental monitoring. Its main function is to carry out rapid and accurate analysis and measurement of flue gas components. By determining the content of various components in flue gas within a certain period of time, as well as its total amount and emissions, it provides us with accurate reference data. The principle of the

flue gas analyzer is to use physical, chemical and optical methods to separate and detect the various constituent elements in the flue gas. Among them, the main principles used include gas chromatography, fluorescence spectroscopy, Raman spectroscopy, infrared spectroscopy, etc. Among them, the most commonly used is gas chromatography.

gas chromatography using gas in a separation column distribution azeotropic point and other characteristics for analysis. After the sample passes through the analytical instrument, it enters the gas phase state through high temperature evaporation, and each component is separated in a separation column. Within the separation column, the relative rates of the different components are different, so that the various component substances can be completely separated within a certain period of time. Finally, the flue gas analyzer will send the separated components to the detector for detection, and determine the content of various components according to the change of absorption spectrum.

fluorescence spectroscopy is a technical method to measure the fluorescence intensity of samples under ultraviolet excitation. Its principle is to insert organic molecules containing specific structures into the zero electric field region of the laser through optical excitation. At this time, the internal vibration of the molecules and the external electric field frequency are the same, which can produce the corresponding resonance emission, so as to realize quantitative detection.

Raman spectroscopy is the use of Raman scattering effects to detect material properties. Specifically, the analyte is excited in response to vibration, and the vibration of the molecule will cause it to scatter, and the frequency of the scattered light wave will change compared to the frequency of the incident light wave, which is called Raman scattering. The concentration of the solute can be detected by the Raman spectrometer, and the chemical composition and distribution of the environmental pollution source can be determined by analyzing the Raman spectrum.

infrared spectroscopy is based on the relationship between the wavelength of the sample absorption and the vibration and stretching characteristics of various structural groups to determine the sample composition. The principle is to excite the sample through infrared rays, which analyzes the transmittance, reflectance and absorption of the sample, so as to analyze the infrared spectra corresponding to different components, and detect the content of the sample components according to the survey results. The principle of

flue gas analyzer is to apply a variety of methods to separate and detect samples, in order to achieve the measurement and analysis of various components in flue gas, and provide strong technical support for environmental protection and other work. Through the effective detection and analysis of flue gas emissions, we can take timely measures to purify the air, protect the ecological environment and human health, let us start from their own, for the construction of a better environment and the future and contribute their own strength.

Previous： The principle of film thickness meter: a new sharp instrument for measuring film thickness

Next： Exploring the working principle of pulse valve-in-depth discussion on the application of pneumatic control industry

News Categories