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Shaanxi Bochun Technology Co., Ltd
Zirconia oxygen content oxygen analyzer
NegotiableUpdate on 05/07
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Overview
Zirconia oxygen analyzer: using tunable semiconductor laser spectroscopy technology, emitting ultra narrow laser with a bandwidth only 1/106 of traditional infrared light sources, eliminating stray light interference, increasing sensitivity by a hundred times, accurately matching the absorption spectral lines of specific gases, and avoiding interference from other molecules. By fine-tuning the laser current and scanning at high frequencies within the gas absorption peak range, the "characteristic absorption window" of the target molecule is ensured to be locked in. When the laser passes through the flue, the detector receives the remaining light signal and extracts weak absorption features through a lock-in amplifier. Combined with Beer Lambert's law, the light loss value is converted to ppm
Product Details
Zirconia oxygen content oxygen analyzer：The oxygen analyzer is a new intelligent industrial gas analyzer developed by combining imported electrochemical, ion flow, laser, zirconia or magnetic oxygen sensors with new single-chip technology.
1、 Core working principle
Oxygen concentration battery effect
Zirconia sensors are typically used at high temperatures600–1000At ℃, it becomes an oxygen ion conductor. When the two sides of the zirconium tube come into contact with gases of different oxygen concentrations (such as smoke and air), oxygen ions migrate from the high concentration side to the low concentration side, generating a potential difference (i.eNernstElectromotive force). The potential is proportional to the logarithm of the oxygen concentration on both sides, and the oxygen content can be calculated by measuring the potential value.
Temperature control requirements
The ionic conductivity of zirconia depends on a stable high-temperature environment. Common temperature control methods include:Built in heating and constant temperatureProbe integrated heating furnace, maintaining700–750Maintain a constant temperature of ℃.External temperature compensationMonitor the actual temperature through thermocouples and calibrate the signal through transmitters.
2、 Instrument structure and technical characteristics
main components
Probe (primary instrument)Includes zirconia tube, platinum electrode, thermocouple, and filter (such as silicon carbide dust filter). Direct insertion design allows for direct insertion into the flue, with a response time of ≤5In seconds.
Transmitter (secondary instrument)Convert the oxygen concentration potential into4–20mA/0–10VStandard signal, supporting display, alarm, and remote data transmission.
Key performance parameters
indicator Typical Range Explanation
measurement range 0–25% O₂ (customizable to0–50%） Common segmentation:0–5%、0–10%、0–25%
Precision ±1–2% FS High precision models can reach±0.3%
response time ≤3–8Second（T90） Quick feedback on changes in combustion status
Operating Temperature probe0–1400℃ Low temperature type（≤600℃), high temperature type (≤1400℃）
output signal 4–20mA/RS485/HART compatibleDCSsystem
3、 Core application scenarios
Optimization of combustion efficiency
Real time monitoring of oxygen content in boiler and kiln flue gas, adjusting air-fuel ratio through closed-loop control system to achieve low oxygen combustion (typical control range)5–7% O₂), reduce fuel consumption10–15%ReduceNOxWaiting for pollutant emissions.
Environmental compliance monitoring
Used in scenarios such as garbage incineration and thermal power plants to ensure that the oxygen content in flue gas meets emission standards and suppress the generation of dioxins (oxygen concentration needs to be controlled)≤10%）.
industrial process control
Petrochemical industry: Oxygen content monitoring of hydrocracking and inert gas shielded reactors.
Iron and Steel Metallurgy: Atmosphere Control in Heat Treatment Furnaces to Prevent Metal Oxidation.
Gas purification: high-purity nitrogen/Oxygen impurity detection in argon production (range as low as0.1ppm）.
4、 Selection and maintenance points
Selection suggestions
Smoke temperature adaptability：≤600Select low-temperature probe (material: stainless steel) at ℃; ＞600High temperature type (ceramic alloy guide pipe) is required at ℃.
Explosion proof requirementsChoose explosion-proof certified models for flammable environments.
signal interfacePriority selection for supportHARTThe dual isolation output of the protocol enhances anti-interference capability.
Shaanxi Bochun PUE-103Zirconia oxygen content oxygen analyzer：Our store specializes in smoke and gasCEMSOnline monitoring, water quality online monitoring,VOCsOnline monitoring, industrial process gas analysis, ammonia escape gas online analysis,Acid dew point analyzer,原位式NOx/O2 nitrogen oxide detectorwaitOther gas detection instrumentsand itsAccessories, data collectionandAnalyzesystemManufacturer direct sales, welcome to call for inquiry and comparison.
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