Corrosion-resistant zirconia oxygen analyzer for garbage incineration boilers

Release time: 2023-02-27


   Waste-to-energy generation is already widespread, but the zirconium oxide oxygen analyzer, used for monitoring waste combustion conditions, has an extremely short lifespan. The main reason for this is the highly complex composition of waste. The flue gas produced after waste combustion primarily consists of a series of toxic and harmful gases such as hydrogen chloride, hydrogen fluoride, nitrogen oxides, and dioxins. These gases, combined with the large amount of water vapor generated during waste incineration, can severely damage the sensor in the oxygen probe. Domestic zirconium oxide analyzers typically last only 3-4 months in waste power plants, with a maximum of six months before requiring replacement.

  The same situation is not limited to waste-to-energy plants. Enterprises involved in the incineration and disposal of solid waste, medical waste, and hazardous waste face similar issues. Even expensive imported zirconium oxide analyzers cannot escape corrosion and damage within a short period. Some manufacturers have attempted to solve the corrosion problem by applying anti-corrosion agents to the probe's zirconia cell, but this only makes the oxygen reaction sluggish, preventing plant operators from using accurate data to guide production and control kiln combustion. High temperatures, water vapor, and strong corrosion – how can these issues be resolved? Waste power plants, solid waste, medical waste, hazardous waste disposal, exhaust gas, and liquid waste incineration companies are all eagerly awaiting a solution.

  Technical personnel from Anhui Tianfen Instrument Co., Ltd., collaborated with alumni and teachers from Wuhan University of Science and Technology, as well as field engineers from companies like Everbright Environmental, GCL Environmental, Sheng Yuan Environmental, and Sinohydro Environmental, along with waste power plants, solid waste, medical waste disposal, and industrial kiln companies, to jointly research and develop the zirconium oxide analyzer for waste power plants.

  The zirconium oxide analyzer for waste power plants adopts ion membrane electrolysis technology, integrating electro-osmosis and electrolysis to achieve both sampling and corrosion prevention. Its principle is that when the zirconium oxide analyzer operates, it automatically forms a series of photonic membranes around the oxygen probe sensor through electrolysis technology. This membrane isolates highly corrosive gases, while a high-temperature demister removes water vapor. The oxygen molecules to be measured directly enter the probe via electro-osmosis. This technology solves the corrosion problem of zirconium oxide probes and extends the lifespan of the zirconium oxide analyzer. According to the current actual usage by relevant companies of Everbright Environmental, the earliest units have been in operation for over 18 months and are still running normally. A chief engineer working at a solid waste incineration plant remarked, "Even if this specialized zirconium oxide analyzer only lasts twelve months, our costs could still be halved! It also saves a lot of procurement and maintenance time, at least doubling efficiency!" Based on current trials at nearly ten sites (including waste power plants, solid waste incineration plants, medical waste disposal, high-temperature kilns, special steel pipe manufacturing, and other complex industrial conditions), the specialized zirconium oxide analyzer runs stably and reliably. Conservatively estimated, after formal production, it can operate normally for at least 1-2 years, or even longer.

  The successful development of the zirconium oxide analyzer for waste power plants undoubtedly offers a huge boon to numerous companies in waste power generation, solid waste, medical waste disposal, liquid waste, and exhaust gas incineration, who have been puzzled by the issue of zirconium oxide analyzer lifespan. This project fills a gap in the domestic market regarding the lifespan of oxygen analyzers used in waste incineration. It is the culmination of extensive hard work by all technical personnel at Anhui Tianfen Instrument Co., Ltd., along with research institutions and technical personnel from various relevant units.

  If you need to order the zirconium oxide oxygen analyzer for waste power plants, or have any related questions, please feel free to call us. Anhui Tianfen Instrument Co., Ltd. will be dedicated to serving you.

Currently, our clients connected to power plants include: Everbright Environmental, GCL Group, Sheng Yuan Environmental, Jinjiang Group, Jingneng Group, CECEP, Shenzhen Energy Group, and others. They have all chosen our company's anti-corrosion zirconium oxide oxygen analyzers.

 

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Trace oxygen analyzer, oxygen analyzer, zirconia oxygen analyzer, ppm oxygen content analyzer


Zirconia-based trace oxygen analyzers (typically with a measurement range of 0.01 ppm to 5,000 ppm O₂) offer key advantages: high-temperature stability, ppm‑level accuracy, rapid response, and continuous operation. They are widely used for trace oxygen monitoring, inert‑atmosphere protection, and quality control of high-purity gases. **Metallurgy / Steel Industry (Heat Treatment / Protective Atmospheres):** Applications include nitriding furnaces, annealing furnaces, heating furnaces, converter flue gases, and glove boxes. Functions: In controlled-atmosphere furnaces (ppm‑level), precise oxygen control (10–1000 ppm) prevents oxidation and decarburization of workpieces, enhancing hardness and wear resistance. In vacuum/glove box environments, maintaining O₂ levels below 50 ppm protects lithium‑battery materials, rare metals, and precision components. **Semiconductors / Electronics (High‑Purity Gases / Cleanroom Environments):** Applications encompass diffusion/oxidation furnaces, wafer annealing, LED epitaxy, vacuum chambers, glove boxes, and high‑purity nitrogen, argon, and hydrogen pipelines. Functions: Ultra‑high‑purity gases (0.01–1 ppm) ensure process yield by preventing oxidation defects in silicon wafers, chips, and LED dies. Inert atmospheres (10–100 ppm) maintain an oxygen‑free environment, safeguarding sensitive materials and devices. **Air Separation / Industrial Gases (High‑Purity Gas Quality Control):** Applications include air‑separation units (N₂/O₂/Ar), high‑purity gas filling, pipeline transport, and cylinder inspection. Functions: Monitoring trace oxygen levels (0.1–10 ppm) in N₂/Ar streams ensures compliance with purity standards (e.g., high‑purity nitrogen ≥99.999%). **Food / Pharmaceutical Industries (Preservation / Aseptic Conditions):** Applications cover food packaging (nitrogen flushing or modified‑atmosphere packaging), pharmaceutical lyophilization and packaging, fermentation tanks, and aseptic isolators. Functions: Residual oxygen levels in packaging (0.1%–5%) inhibit oxidation and mold growth, extending shelf life for meat products, fruits, vegetables, and pharmaceuticals. **Laboratories / Research (Precision Environments):** Applications include materials R&D, battery laboratories, catalytic reaction studies, inert‑gas‑protected experiments, and glove boxes. Functions: Precise control of oxygen partial pressures (from ppm to % levels) enables simulation of oxygen‑free or low‑oxygen conditions, ensuring experimental reproducibility and data reliability. **Technical Specifications:** - Measurement range: 0.1 ppm–20,000 ppm; 0–20.6%; 0–100% - Output signal: 4–20 mA; load resistance ≤500 Ω - Communication interface: RS‑485 - Resolution: 0.01 ppm - Repeatability: ±0.5% of full scale - Basic error: ≤±1% (full scale) - Stability: ≤±1% (after 4 hours of continuous calibration) - Response time: Within 5 seconds when a standard gas is introduced to the sensor, reaching 90% of the final reading - Sample gas flow rate: Adjusted via flow meter, typically maintained at 0.1–0.2 NL/min - Ambient temperature: 0°C–45°C - Power supply and power consumption: 220 VAC ±10%, maximum power consumption 150 W - Sample gas temperature: 0–50°C - Sampling method: Either suction‑type or direct‑injection - Operating pressure (without pump): 0.05 MPa < inlet gauge pressure < 0.35 MPa, with stable atmosphere - Operating pressure (with pump): Micro‑positive, micro‑negative, or atmospheric pressure - Background gases: He, Ar, CO₂, N₂, and other inert gases mixed as needed - Gas‑line interface: 1/8-inch φ6 ferrule or quick‑connect fitting
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