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Analysis of residual oxygen in boiler combustion process by oxygen analyzer
Date: 2025-05-15Read: 1
  Oxygen analyzerIt is a device used to measure residual oxygen in the combustion process, widely used for boiler combustion control and optimization. By accurately measuring the residual oxygen content during combustion, it can help optimize combustion efficiency, reduce energy waste, and lower pollutant emissions. The amount of residual oxygen during boiler combustion directly affects combustion efficiency. Excessive residual oxygen means incomplete combustion and serious energy waste; Insufficient residual oxygen may lead to incomplete combustion and the production of harmful gases such as carbon monoxide. The oxygen analyzer provides accurate data support for the combustion control system by monitoring residual oxygen in real-time, helping to optimize the combustion process and improve combustion efficiency.
The pollutants such as nitrogen oxides (NOx) and carbon monoxide (CO) generated during the combustion process are harmful to the environment and human health. By precisely controlling residual oxygen levels, oxygen analyzers can effectively reduce the generation of these pollutants. For example, an appropriate amount of residual oxygen can promote complete combustion and reduce the generation of carbon monoxide; Meanwhile, by optimizing combustion conditions, nitrogen oxide emissions can also be reduced.
Abnormal changes in residual oxygen during combustion may indicate faults or safety hazards in the combustion system. This analyzer can monitor the changes in residual oxygen in real time, detect abnormal situations in a timely manner, and provide guarantees for the safe operation of the boiler. When the residual oxygen suddenly increases, it may indicate an air leak in the combustion chamber, which needs to be checked and repaired in a timely manner.
Oxygen analyzers typically use magnetic or electrochemical sensors to measure residual oxygen levels during combustion processes. Magnetic sensors utilize the paramagnetism of oxygen to measure oxygen concentration through changes in magnetic field; Electrochemical sensors measure oxygen concentration through the current generated by electrochemical reactions. These sensors can convert residual oxygen into electrical signals in real time for analysis and adjustment by the combustion control system.
Practical application case explanation:
1. Industrial boilers
In industrial boilers, oxygen analyzers are widely used for combustion control and optimization. By installing sensors inside the boiler combustion chamber, the analyzer can monitor the changes in residual oxygen during the combustion process in real time and transmit the data to the combustion control system. The combustion control system automatically adjusts the ratio of fuel and air based on these data to ensure the efficiency and safety of the combustion process.
2. Power plant
In power plants, oxygen analyzers are used to monitor residual oxygen levels during boiler combustion processes, in order to optimize combustion efficiency and reduce pollutant emissions. By precisely controlling residual oxygen levels, power plants can improve combustion efficiency, reduce fuel consumption, and lower emissions of nitrogen oxides and carbon monoxide, meeting environmental requirements.