Since a large amount of oxygen needs to be consumed in the process of solid waste incineration, the detection of air oxygen content is an important part of ensuring the normal and safe operation of the incinerator. For small environmental protection solid waste incinerators, the following methods can be used to detect the oxygen content of the air:
1.Magnetic oxygen analysis.
Magneto-oxygen analysis is a method of measuring oxygen content using the perturbation effect of oxygen on a magnetic field. This method requires a magnetic oxygen analyzer to be installed at the air inlet of the furnace chamber to calculate the concentration of oxygen by measuring the change in the magnetic field. Magnetic oxygen analysis has the advantages of accurate measurement, fast response and good stability, so it is widely used in small environmentally friendly solid waste incinerators.
2.Electrochemical method.
Electrochemistry is a method of measuring oxygen content using an electric current generated in a chemical reaction. This method requires an amperometric oxygen analyzer to be installed at the air inlet of the furnace chamber to calculate the concentration of oxygen by measuring the magnitude of the current. The electrochemical method has the advantages of wide measurement range, fast response speed and low cost, so it is also widely used in small environmentally friendly solid waste incinerators.
3.Infrared method.
The infrared method is a method of measuring oxygen content using the absorption of gas molecules by infrared rays. This method requires an infrared oxygen analyzer to be installed at the air inlet of the furnace chamber to calculate the oxygen concentration by measuring the transmission of infrared rays. The infrared method has the advantages of accurate measurement, strong anti-interference ability, and good stability, so it is also used as a supplement to other methods in small environmentally friendly solid waste incinerators.
In the air oxygen content detection of small environmental protection solid waste incinerators, the appropriate method should be selected according to the actual situation, and regular calibration and maintenance should be carried out to ensure the accuracy and reliability of the measurement results. At the same time, in order to ensure the normal operation of the incinerator and the emission of environmental protection standards, it is also necessary to monitor and control other relevant parameters, such as flue gas temperature, flue gas composition, soot concentration, etc. The monitoring and control of these parameters need to be comprehensively considered, and the automatic control is realized through the advanced control system to improve the operating efficiency and environmental performance of the incinerator.