Wobo Industrial Equipment Co., Ltd.
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Product Overview
The online gas analyzer for fuel gas utilizes Non-Dispersive Infrared (NDIR) technology, long-life electrochemical sensors, and MEMS-based thermal conductivity technology. It enables continuous, real-time monitoring of calorific value for fuel gases such as coal gas and biogas, while simultaneously measuring the volume concentrations of CO, CO₂, CH₄, H₂, O₂, and CnHm.
Designed for continuous online operation, the analyzer provides accurate and reliable data to support industrial processes. It can replace traditional combustion-based calorimeters, improving production efficiency and ensuring stable gas quality.
Working Principle
The analyzer measures CO, CO₂, and CH₄ using NDIR technology, which quantifies gas concentrations based on their absorption of specific infrared wavelengths.
Electrochemical sensors are used for detecting gases such as O₂ and H₂, while MEMS-based thermal conductivity technology is applied for CnHm measurement and calorific value calculation.
By integrating multiple sensing technologies, the system enables simultaneous multi-component analysis. A built-in gas pre-treatment system removes moisture and particulates, ensuring stable and reliable measurement results.
Key Features
- Multi-Component Analysis & Calorific Value Calculation: Simultaneously measures CO, CO₂, CH₄, H₂, O₂, and CnHm, and automatically calculates calorific value.
- High Measurement Accuracy: Minimal cross-interference between gases; measurements are stable and unaffected by flow variations.
- High Automation & Low Maintenance: Equipped with a professional pre-treatment system and supports both analog and digital outputs for unattended operation.
- Stable Performance: Constant-temperature sensor design minimizes environmental impact; gas path uses stainless steel and PTFE materials for corrosion resistance and long service life.
Applications
- Fuel Gas & Biogas Monitoring: Suitable for coal gas, coke oven gas, natural gas, biomass gas, and other fuel gases, ensuring stable quality and calorific value.
- Industrial Process Control: Widely used in chemical, power, metallurgy, and steel industries for real-time gas quality monitoring and process optimization.
- Energy Industry: Supports calorific value and composition monitoring to improve energy efficiency and reduce waste.
- Environmental Monitoring: Monitors gas usage and emissions to help meet environmental regulations and sustainability goals.
| Parameter | Description |
| Measured Components | CO, CO2, CH4, H2, O2, C2H2, C2H4, CnHm*, Heating Value |
| Measurement Principle | CO/CO2/CH4/C2H2/C2H4/CnHm: NDIR; H2: TCD; O2: ECD |
| Measurement Range | CO/CO2/CH4/H2: (0~100)%<br>O2: (0~25)% |
| C2H2/C2H4/CnHm: (0~10)% (Optional) | |
| Linear Error | CO/CO2/CH4/C2H2/C2H4/CnHm: ±1%F.S.; O2/H2: ±2%F.S. |
| Resolution | 0.01% |
| Repeatability | ≤1% |
| Response Time | T90＜15s (NDIR) |
| Optimal Flow | (0.7~1.2)L/min |
| Inlet Pressure | (2~50)kPa |
| Sample Gas Requirement | Dust-free, water-free, oil-free |
| Communication | RS-485/RS-232, (4-20)mA |
| Power Supply | 100~240VAC, 100W |
| Display | LCD Display |
| Features | Built-in zeroing gas pump for automatic air zeroing |
| Heating value units Kcal/m³ and Mj/m³ can be switched freely | |
| Self-diagnosis function, online sensor status check |
