Gas Composition Analysis Instruments
SAF gas contains combustible gases including CO, H₂, CH₄, etc. The closed furnace gas purification and recovery system requires real-time gas composition monitoring to ensure safe operation and recovery efficiency.
| Type | Measured Components | Range | Accuracy | Response Time | Applications |
|---|---|---|---|---|---|
| Infrared Gas Analyzer | CO, CO₂, CH₄ | 0~100% | ±1%FS | ≤15s | SAF gas composition online analysis |
| Zirconia Oxygen Analyzer | O₂ | 0~25% | ±1%FS | ≤5s | Flue gas oxygen content monitoring |
| Thermal Conductivity Gas Analyzer | H₂ | 0~100% | ±2%FS | ≤15s | Hydrogen content monitoring in gas |
| Electrochemical Gas Sensor | O₂, CO, H₂S | 0~1000ppm | ±5% | ≤30s | Safety monitoring, toxic gas alarm |
| Gas Chromatograph | Multi-component | 0~100% | ±1%FS | 2~10min | Laboratory precise analysis |
Full stainless steel sampling probe, dust/water-proof pre-treatment
Response time ≤15s
System dust filtration ≤0.5μm
System reliability MTBF >3 years
Sampling probe service life ≥5 years, maintenance-free throughout life
System maintenance interval >1 year
Automatic/manual back-flushing anti-clogging device
Output signal: 4~20mA, control alarm signal NO/NC
| Measurement Scenario | Recommended Instrument | Selection Reason |
|---|---|---|
| SAF gas CO/CO₂/CH₄ | Infrared gas analyzer | Online continuous monitoring, fast response, high accuracy |
| Flue gas oxygen content | Zirconia oxygen analyzer | High temp resistant, direct insertion, fast response |
| Gas H₂ content | Thermal conductivity gas analyzer | H₂ sensitive, good linearity |
| Safety monitoring/leak alarm | Electrochemical gas sensor | High sensitivity, suitable for low concentration alarm |
| Toxic/flammable gas monitoring | Local audible/visual alarm, control room display alarm | Safety standard requirement |
| Flue gas composition analysis | Consider background gas effects, equip pre-treatment system | Dust removal, dehumidification, lag treatment |