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Flue Gas Mass Flow Meter
The technician’s recommendation of the CX-TMFM-P-32-SS304-4/R-A-N thermal mass flow meter aligns well with the customer’s requirements for measuring coal-fired flue gas. Below is a breakdown of why this selection is appropriate:
1. Key Customer Requirements vs. Meter Specifications
| Requirement | Customer Spec | CX-TMFM-P-32 Spec | Match? |
|---|---|---|---|
| Medium | Coal-fired flue gas | Flue gas | ✅ Yes |
| Temperature | ≤300°C | 300°C (max) | ✅ Yes |
| Flow Rate | 150 Nm³/h (standard) | 2–200 Nm³/h (range) | ✅ Yes |
| Pressure | 10 kPa (0.01 MPa) | 1.6 MPa (max) | ✅ Yes |
| Accuracy | ±1.5% | 1.5% | ✅ Yes |
| Output | N/A | 4–20 mA (standard) | ✅ Yes |
| Power Supply | N/A | 220 VAC / 24 VDC (flexible) | ✅ Yes |
| Construction | N/A | SS304 (flange, sensor) | ✅ Yes |
2. Why a Thermal Mass Flow Meter?
- Direct Mass Flow Measurement: Thermal meters measure mass flow directly (kg/h or Nm³/h), eliminating the need for temperature/pressure compensation (critical for flue gas with variable composition).
- Wide Turndown Ratio: The 2–200 Nm³/h range comfortably covers the customer’s 150 Nm³/h requirement with headroom for fluctuations.
- High Temperature Tolerance: Rated for 300°C, suitable for flue gas applications.
- Low Maintenance: No moving parts, ideal for dirty or particulate-laden gases like flue gas.
3. Additional Considerations
- Flange Size (DN32): Matches typical pipe sizes for medium-flow applications.
- IP65 Protection: Dust- and water-resistant for industrial environments.
- LCD Display: Local readout for easy monitoring.
4. Potential Enhancements
- Gas Composition Compensation: If the flue gas composition varies significantly (e.g., CO₂, H₂O, O₂ content), a multivariable thermal meter or correlation-based compensation could improve accuracy.
- Explosion-Proof Option: If the installation is in a hazardous area, an ATEX/IECEx-certified model may be needed.
Final Recommendation
The CX-TMFM-P-32-SS304-4/R-A-N is an excellent fit for this application. For further customization or quotes,
please contact Winny (sales01@cxflowmeter.com / WhatsApp: +86 180 4984 1995).
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