Zirconia probes, as the core sensors for oxygen concentration detection, have been widely used in fields such as ships, power, and chemical engineering due to their high precision, high temperature resistance, and corrosion resistance. This article is based onNOVATECH 1231Taking the ship specific zirconia probe as an example, this article explores its technical advantages and application scenarios in depth.

1、 The core advantages of zirconia probes

1.High precision and stability
By using the welding technology of zirconia sheet and steel jade tube ceramic, the thermal expansion coefficient of zirconia sheet and steel jade tube is consistent, effectively avoiding the risk of explosion caused by temperature fluctuations. The probe measurement accuracy can reach10⁻³⁰to100%Range, and signal drift free, long-term use does not require frequent calibration. For example, in ship boiler flue monitoring, the probe can stably output oxygen concentration data with an error controlled within±1%Within.

2.High temperature resistance and thermal shock resistance
The probe comes with a built-in heater, which can withstand0~900℃Smoke temperature, heating time only requires15~30It can reach the rated working temperature in minutes（700℃）. The composite structure of zirconia and steel jade ceramic endows the probe with strong thermal shock resistance, even in environments with alternating cold and heat (such as boiler start-up and shutdown stages), it can maintain stable performance and a long service life3~5Year.

3.Corrosion resistance and maintenance free design
The shell adopts316LStainless steel material, combined with steel jade tube ceramic protective layer, can resist harsh environmental corrosion such as high sulfur and high dust. The probe does not require specific calibration, and daily maintenance only requires simple air calibration, greatly reducing the cost of use. A petrochemical company has provided feedback that the probe operates continuously in flue gas with excessive sulfur content4Years later, the measurement accuracy still meets the standard.

4.Quick response and easy installation
The actual reaction time of zirconia devices is less than100Milliseconds, the overall response time of the probe is less than4In seconds, it can capture real-time changes in oxygen concentration. In terms of installation, a spiral fixed design is adopted. Users only need to drill holes and install nuts on the equipment, screw in the probe, and connect the cable through an aviation plug,15~20Tilt angle installation can further optimize the detection effect.

2、 Typical application scenarios

1.Ship boiler flue monitoring
In boiler systems of ships such as ocean going cargo ships and cruise ships,NOVATECH 1231The probe can accurately monitor combustion efficiency and reduce fuel consumption by adjusting the air-fuel ratio. For example, after the installation of a container ship, the accuracy of boiler oxygen concentration control is improved30%The annual fuel consumption has reached120Ton.

2.Power industry flue gas treatment
In scenarios such as coal-fired power plants and waste incineration plants, the probe can withstand high temperature flue gas for a long time and assist inSCROptimize the ammonia injection amount in the denitrification system to reduce nitrogen oxide emissions. Its anti dust properties enable it to operate stably in untreated flue gas.

3.Chemical process control
In processes such as sulfuric acid production and ethylene cracking, the probe can monitor the oxygen concentration in the reaction vessel in real time to prevent side reactions caused by excessive oxidation. A certain chemical enterprise has increased the purity of its products by deploying this probe99.9%Annual increase in efficiency and benefits500Ten thousand yuan.

3、 Technical parameters and selection suggestions

NOVATECH 1231Probe provided250mmThe350mmTwo insertion lengths, suitable for furnace walls of different thicknesses. Users should pay special attention to:

Smoke temperature: Ensure it is below900℃Rated value;

Installation space: Reserve sufficient space for spiral installation operation;

Verification requirement: It is recommended to perform high-precision scenarios every time6Verify with air once a month.