Zirconia oxygen analyzerIt is a high-precision oxygen concentration detection device based on the principle of zirconia solid electrolyte, widely used in industrial scenarios that require real-time monitoring of oxygen content in gases. The core principle is to measure the potential difference caused by the difference in oxygen concentration on both sides through the conductivity of oxygen ions generated by zirconia at high temperatures, in order to calculate the oxygen content. The following are its main application areas and specific scenarios:

1、 Power industry

Boiler combustion control

Application scenario: Monitoring the oxygen content in the flue gas during the combustion process in coal-fired and gas-fired boilers in thermal power plants.

Function: By adjusting the ratio of air to fuel (air-fuel ratio), combustion efficiency is optimized, fuel waste is reduced, and emissions of pollutants such as carbon monoxide (CO) and nitrogen oxides (NOx) are lowered.

Case: A large thermal power plant used a zirconia oxygen analyzer to monitor the oxygen content in boiler flue gas in real time, which increased combustion efficiency by 3% and saved over one million yuan in fuel costs annually.

Gas turbine intake monitoring

Application scenario: Monitoring oxygen concentration in gas turbine intake system to ensure combustion stability.

Function: To prevent incomplete combustion caused by insufficient oxygen or detonation caused by excessive oxygen, and to extend the service life of equipment.

2、 Petrochemical industry

catalytic cracking unit

Application scenario: Catalytic cracking process in petroleum refining, monitoring the oxygen content in the flue gas of the regenerator.

Function: Control the oxygen concentration in the regenerator, optimize the catalyst regeneration efficiency, and prevent incomplete regeneration caused by catalyst sintering due to high or low oxygen content.

Hydrocracking and Hydrorefining

Application scenario: In hydrogenation reactors, monitor the oxygen content in the mixture of hydrogen and raw oil.

Function: To avoid the risk of explosion caused by the mixing of oxygen and hydrogen, and ensure the safe progress of the reaction.

Ethylene cracking furnace

Application scenario: During the ethylene production process, monitor the oxygen content in the flue gas at the outlet of the cracking furnace.

Function: Optimize cracking temperature and air volume, increase ethylene yield, and reduce energy consumption.

3、 Steel and metallurgical industry

blast furnace ironmaking

Application scenario: In the gas recovery system at the top of the blast furnace, monitor the oxygen content in the gas.

Function: To prevent explosions caused by high oxygen concentration in gas, optimize the reducing atmosphere in the blast furnace, and increase the production of molten iron.

converter steelmaking

Application scenario: During the converter blowing process, monitor the oxygen content inside the furnace to control the decarbonization reaction.

Function: Accurately control the endpoint carbon content, reduce over blowing or under blowing phenomena, and improve the quality of molten steel.

Electric arc furnace steelmaking

Application scenario: Monitoring oxygen concentration during the melting process of scrap steel in electric arc furnaces to optimize oxidation period operations.

Function: Improve the efficiency of scrap steel melting and reduce electrode consumption.

4、 Environmental Protection and Waste Gas Treatment

Smoke emission monitoring

Application scenario: Monitoring oxygen content in flue gas emitted from industrial kilns, waste incinerators, etc. to calculate excess air coefficient.

Function: Ensure sufficient combustion and meet environmental emission standards (such as NOx and SO2 emission limits).

vehicle emission

Application scenario: Monitoring the oxygen content in exhaust gases in automotive exhaust analyzers.

Function: Evaluate the efficiency of three-way catalytic converters, determine the combustion status of engines, and assist in fault diagnosis.

VOCs treatment

Application scenario: In volatile organic compounds (VOCs) treatment equipment (such as RTO, RCO), monitor the oxygen content at the inlet of the oxidation chamber.

Function: Optimize oxidation reaction conditions and improve VOCs removal efficiency.

5、 Aerospace and Gas Industry

Aircraft engine testing

Application scenario: Monitoring the oxygen content in the intake and exhaust during ground testing of aircraft engines.

Function: Evaluate engine combustion efficiency and optimize fuel economy.

Gas pipeline safety

Application scenario: Monitoring oxygen concentration during natural gas pipeline transportation to prevent pipeline corrosion.

Function: To prevent the reaction of oxygen with hydrogen sulfide and other substances to generate corrosive substances, and to extend the service life of pipelines.

6、 Food and pharmaceutical industry

Inert gas protection

Application scenario: Monitoring the oxygen content in inert gases such as nitrogen in food packaging and pharmaceutical production.

Function: Ensure that the oxygen concentration inside the packaging is below 0.5% to prevent food oxidation and deterioration or drug failure.

Fermentation process control

Application scenario: Monitoring oxygen concentration in biological fermentation tanks to optimize microbial growth environment.

Function: Improve the yield and quality of fermentation products such as antibiotics and amino acids.

7、 Other industrial scenarios

Glass manufacturing

Application scenario: Monitoring the oxygen content of the combustion atmosphere in a glass melting furnace.

Function: Control the reducing atmosphere inside the furnace, reduce bubbles and stripe defects in the glass.

cement production

Application scenario: Monitoring the oxygen content of flue gas in cement rotary kilns to optimize the combustion process.

Function: Improve the quality of clinker and reduce fuel consumption.

electronic semiconductor

Application scenario: Monitoring the oxygen content in the air in semiconductor production cleanrooms.

Function: To prevent oxygen from reacting with sensitive materials and ensure process stability.

8、 Summary of Advantages

High precision: Wide measurement range (0.1%~100% oxygen concentration), resolution up to 0.01%.

Quick response: Short response time (usually<5 seconds), suitable for dynamic process monitoring.

Strong stability: Zirconia sensors have a long lifespan (usually>2 years) and low maintenance costs.

Adapt to harsh environments: able to withstand high temperatures (up to 800 ℃), dust, corrosive gases, and other working conditions.