coal-fired flue gas flow meter

This model of flowmeter fully matches the core requirements of customers for measuring coal-fired flue gas, with highly adaptable 

technical parameters and operating conditions. The specific advantages are as follows:

1. Matching of core parameters

Customer requirements for CX-TMFM-P-32 parameter matching results

Medium coal-fired flue gas ✅  Fully compatible

Temperature ≤ 300 ℃ 300 ℃ (maximum tolerance temperature) ✅  Meet the limit

Flow range 150 Nm ³/h (standard condition) 2-200 Nm ³/h ✅  Coverage requirements

Pressure 10 kPa (0.01 MPa) 1.6 MPa (maximum pressure) ✅  Adequate safety margin

Accuracy ± 1.5% 1.5% ✅  meet the standard

2. Technical advantages and scene adaptability

Direct mass flow measurement:

Thermal flow meters measure the relationship between gas heat absorption rate and mass flow rate, and directly output mass flow 

rate (kg/h or Nm ³/h) without temperature/pressure compensation, avoiding errors caused by fluctuations in flue gas composition.

 They are particularly suitable for working conditions where the components of CO ₂, H ₂ O, SO ₂ in coal-fired flue gas change frequently.

Anti dirt and low maintenance:

Coal fired flue gas contains dust (ash content, coal particles) and corrosive gases (SO ₂ NOx）， This model uses sensors and pipelines 

made of 304 stainless steel, with a smooth surface that is not prone to dust accumulation; The design without moving parts reduces the 

risk of wear and blockage, and the maintenance cycle can be extended to more than 1 year.

Wide range ratio and low flow rate measurement:

The range ratio reaches 100:1 (2-200 Nm ³/h), which can cover the fluctuation range of flue gas flow rate; The minimum measurable

 flow velocity is as low as 0.1 m/s to avoid measurement failure under low load conditions.

High protection level and temperature adaptability:

IP65 protection level can prevent dust and water, suitable for harsh outdoor environments; The high temperature tolerance of 300 ℃ meets 

the exhaust temperature of coal-fired boilers without the need for additional cooling devices.

3. Installation and Economy

Flange connection (DN32):

The standard flange size facilitates docking with existing pipelines, and the installation time can be controlled within 2 hours, reducing

 construction costs.

Cost effectiveness:

Compared to ultrasonic flow meters (which require multi-channel design for large pipe diameters) or differential pressure flow

 meters (which require temperature/pressure compensation), thermal flow meters have an initial cost that is over 30% lower and 

do not require regular calibration of temperature and pressure sensors, resulting in lower long-term usage costs.

Competitor comparison and selection suggestions

If the customer has special requirements for the following scenarios, alternative solutions may be considered:

Limitations of Applicable Scenarios for Alternative Solutions

Ultrasonic flowmeter for large diameter (DN500 or above) flue gas requires high-precision measurement (such as CEMS system),

 which is expensive (2-3 times that of thermal type), and dust affects the propagation of sound waves

Vortex flowmeter is sensitive to vibration in operating conditions with stable flue gas composition and low dust content (such as 

natural gas boilers), and has large measurement errors at low flow rates (<5 m/s)

Differential pressure flowmeter needs to be used in conjunction with temperature and pressure sensors, suitable for high temperature

 and high pressure flue gas (such as blast furnace gas in steel plants) with large pressure loss (about 5-10 kPa), and the pressure tapping

 hole needs to be cleaned regularly

Conclusion: The DN32 thermal mass flowmeter (CX-TMFM-P-32-SS304-4/R-A-N) is the optimal solution for measuring coal-fired flue 

gas, balancing accuracy, durability, and cost-effectiveness. If further optimization is needed, consider adding wireless transmission 

modules (such as LoRa) or reverse blowing devices (to cope with extreme dust conditions).

If you have specific gas flow meter selection and industrial flow meter requirements, please contact CIXIFM Winny:

Email: sales01@cxflowmeter.com

WhatsApp: 008618049841995