Integrated Zirconia Oxygen Analyzer

Zirconia Oxygen Analyzer is an analyzer used to monitor and control the oxygen concentration of flue gas in combustion gases, boilers and industrial furnaces. Widely used in industrial fields that require a lot of energy – such as steel plants, power plants, petroleum and petrochemical, ceramics, paper, food or textile industries, as well as various incinerators and medium/small boilers, etc. Zirconia Oxygen Analyzer helps save energy. It can also reduce CO2, SOx, and NOx emissions by controlling complete combustion. Contribute to the protection of the earth’s environment, prevention of global warming and air pollution.

Integrated Zirconia Oxygen Analyzer

Integrated Zirconia Oxygen Analyzer Features

  • Aluminum die-casting junction box, IP65 protection level, exquisite appearance.
  • The filter adopts a circular sheet shape, which reduces the direct erosion of flue gas and prolongs the service life.
  • At the same time, there is no need to consider the directionality.

Technical Specifications

DisplayLCD menu operation
Instrument accuracy1%
Temperature control accuracy±1℃
output4-20mA
power supply220V+10%
power<150W
Range0-25% (programmable)
Flue gas temperature0-700℃
Flue gas pressure-20KPa~+20KPa
Protection tube material316L stainless steel protection tube
SpecificationΦ45mm
Transmitter materialcast aluminum
degree of protectionIP65
flangeOuter diameter 155mm hole distance 130mm (other specifications are optional)
Furnace resistance valueStandard 60Ω (optional 80Ω, 120Ω, 160Ω)
service life15 years (according to actual working conditions)
Probe length500mm, 800mm, 1000mm, 1200m (other specifications can be customized)

Frequently Asked Questions

Zirconia oxygen analysis is a method of measuring the oxygen content in a gas sample. The technology is based on the fact that zirconium dioxide, or zirconia, is an oxygen ion conductor at high temperatures. When a voltage is applied across a zirconia cell, it drives oxygen ions from one side to the other, creating a current proportional to the oxygen concentration in the gas sample. This technology is widely used in a variety of industries, including combustion control systems, car emission controls, and environmental monitoring.

A zirconia oxygen analyzer usually operates at a high temperature, typically around 700 to 800 degrees Celsius. At these elevated temperatures, zirconia becomes a good conductor of oxygen ions. This high temperature is crucial for the operation of the device, as it facilitates the necessary electrochemical reactions that allow oxygen ions to move across the zirconia membrane, generating an electrical signal proportional to the concentration of oxygen.

The operation of a zirconia oxygen analyzer is based on the Nernst equation. This equation expresses the relationship between the voltage generated across a zirconia cell and the oxygen concentrations on each side of the cell. Here it is in its simplest form:

E = E0 + RT/4F * ln(pO2(1)/pO2(2))

Where:

E is the voltage across the cell,
E0 is the standard cell potential,
R is the gas constant,
T is the temperature in Kelvin,
F is Faraday’s constant,
pO2(1) and pO2(2) are the partial pressures of oxygen on the two sides of the cell.

Zirconia and titania O2 sensors both serve the same purpose of measuring oxygen levels, but they operate using different principles and have different characteristics:

Zirconia sensors rely on the Nernst effect, which creates a voltage difference proportional to the logarithm of the oxygen pressure difference across a zirconia cell. Zirconia sensors are excellent at providing accurate and reliable measurements and are commonly used in automobile exhaust systems and industrial applications.

Titania sensors, on the other hand, change their electrical resistance according to the concentration of oxygen. When exposed to a rich mixture (more fuel, less oxygen), the resistance of the titania sensor increases; when exposed to a lean mixture (less fuel, more oxygen), the resistance decreases. This type of sensor is simpler and more robust but provides less precise measurements compared to zirconia sensors.

Standard gas:

National secondary standard material, oxygen in nitrogen. Oxygen content is proportioned according to need. The general standard is 5.0%. Calibrate zirconia oxygen analyzers against known gas standards. Turn on the calibration gas, connect the calibration gas connection hose to the calibration gas inlet of the zirconia probe, and judge whether the zirconia oxygen analyzer is accurate according to the known oxygen content of the calibration gas.

Selection of Zirconia Oxygen Analyzer

1) The flue gas temperature at the recommended installation sampling point

Low temperature type is selected when the flue gas temperature is below 400°C;
When the flue gas temperature is below 700°C, select the warm type;
Choose the high temperature type when the temperature is above 700°C.
If the flue gas contains more corrosive gases, an aspirating oxygen analyzer with a sample gas pretreatment device should be selected.

2) Select the probe length

The total length of the probe refers to the length from the installation flange to the sampling port of the oxygen sensor. The actual total length of the probe should also add 150mm to the length of the junction box.

Probe length = mounting screw distance 100mm + furnace wall thickness + length inserted into the furnace or flue (generally around 400mm)

3) Instrument selection

Oxygen converters can be divided into disc meters and wall-mounted meters according to the installation form. The disc meters include disc vertical meters and disc horizontal meters. The installation position of the wall-mounted meter can be selected at a place close to the oxygen detector and convenient for debugging.

There are four options for the oxygen content of the full scale of the transmitter: 0~5%, 0~10%, 0~20.6% (factory default value), 0~25%, corresponding to the current output of 4~20mA.

More Gas Measurement Solutions

Introducing our Integrated Zirconia Oxygen Analyzer, a cutting-edge tool designed to measure oxygen levels accurately. This device utilizes zirconia’s unique properties to give precise readings in various environments, from car emissions control to environmental monitoring.

We, at Sino-Inst, are experienced manufacturers and suppliers in the field of Zirconia Oxygen Analyzers. We not only offer top-quality products but also provide customization to cater to your unique needs. With Sino-Inst, you get a reliable partner committed to your success.

Contact us today to discover how our Integrated Zirconia Oxygen Analyzer can enhance your operations.

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Integrated Zirconia Oxygen Analyzer | Manufacturer Sino-Inst

Zirconia Oxygen Analyzer is an analyzer used to monitor and control the oxygen concentration of flue gas in combustion gases, boilers and industrial furnaces. Widely used in industrial fields that require a lot of energy - such as steel plants, power plants, petroleum and petrochemical, ceramics, paper, food or textile industries, as well as various incinerators and medium/small boilers, etc. Zirconia Oxygen Analyzer helps save energy. It can also reduce CO2, SOx, and NOx emissions by controlling complete combustion. Contribute to the protection of the earth's environment, prevention of global warming and air pollution.

Product SKU: Integrated Zirconia Oxygen Analyzer

Product Brand: Sino-Inst

Product Currency: USD

Product Price: 2000

Price Valid Until: 2029-09-09

Product In-Stock: PreOrder

Editor's Rating:
5
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About KimGuo11

Wu Peng, born in 1980, is a highly respected and accomplished male engineer with extensive experience in the field of automation. With over 20 years of industry experience, Wu has made significant contributions to both academia and engineering projects. Throughout his career, Wu Peng has participated in numerous national and international engineering projects. Some of his most notable projects include the development of an intelligent control system for oil refineries, the design of a cutting-edge distributed control system for petrochemical plants, and the optimization of control algorithms for natural gas pipelines.