In today's society, with the rapid development of science and technology and the continuous improvement of industrialization, the problem of environmental pollution is becoming more and more serious. In order to protect the environment and ensure the safety of human life, gas monitoring analyzers have emerged as a necessary and important tool. This article will introduce the principle, application and development trend of gas monitoring analyzer in detail.
First, the principle of gas monitoring analyzer.
A gas monitoring analyzer is a device that can monitor and analyze harmful gases in the air in real time. It mainly realizes the measurement of gas concentration through several steps such as sampling, pretreatment, detection and data processing.
Sampling: The gas monitoring analyzer draws air into the instrument through the sampling tube to realize the collection of gas. There are two types of sampling: passive sampling, which refers to the natural diffusion of gas into the sampling tube, and active sampling, which involves pumping the gas into the sampling tube by pump or other means.
Pre-treatment: The gas after sampling needs to be pre-treated to remove impurities and moisture from it. The pretreatment methods include condensation method, adsorption method, filtration method, etc.
Detection: The pretreated gas enters the detector and the gas concentration is measured by various sensors. Common sensors are electrochemical sensors, infrared sensors, ultraviolet sensors, etc.
Data processing: The detector converts the measured signal into an electrical signal, which is amplified, filtered, and then sent to the data processing system for analysis and display. The data processing system can display the gas concentration in real time, and the data can also be stored for later analysis and processing.
Second, the application of gas monitoring analyzer.
Gas monitoring analyzers are widely used in environmental protection, chemical industry, petroleum, electric power, metallurgy, fire protection and other fields, and are of great significance to ensure the safety of the environment and human life.
Environmental protection field: gas monitoring analyzer can monitor pollutants in the atmosphere in real time and provide scientific basis for environmental protection departments. For example, by monitoring air quality, air pollution problems can be detected in time and corresponding measures can be taken to deal with them.
Chemical industry: A large number of harmful gases will be produced in the chemical production process, such as ammonia, hydrogen sulfide, etc. The gas monitoring analyzer can monitor these harmful gases in real time to ensure production safety.
Petroleum field: During oil extraction, downhole gas needs to be monitored to ensure the safety of drilling. The gas monitoring analyzer can monitor methane, ethane and other combustible gases in underground gas in real time to prevent fire accidents.
Electric power field: During the operation of power equipment, toxic and harmful gases may be produced, such as sulfur hexafluoride and hydrogen. Gas monitoring analyzers can monitor these gases in real time to ensure the safe operation of the equipment.
Metallurgical field: In the process of metallurgical production, a large number of harmful gases will be generated, such as carbon monoxide, nitrogen oxides, etc. The gas monitoring analyzer can monitor these harmful gases in real time to ensure production safety.
Fire protection field: A large number of toxic and harmful gases will be produced at the fire scene, such as carbon dioxide, carbon monoxide, etc. Gas monitoring analyzers can monitor these gases in real time to provide safety for rescuers.