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FTIR-3000 Gas Analyzer
FTIR-3000 Gas Analyzer
FTIR-3000 Gas Analyzer is developed based on Fourier Transform Infrared Spectroscopy (FTIR) technology. It can simultaneously monitor multiple gas components in exhaust gas, including SO2, NOx, NO, NO2, CH4, HCl, HF, CO, CO2, O2, H2O, etc. Other gas components also can be extended as required, such as NH3, SO3, N2O, etc.

  • FTIR-3000

  • YUAN ZHENG

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FTIR-3000 Gas Analyzer is developed based on Fourier Transform Infrared Spectroscopy (FTIR) technology. It can simultaneously monitor multiple gas components in exhaust gas, including SO2, NOx, NO, NO2, CH4, HCl, HF, CO, CO2, O2, H2O, etc. Other gas components also can be extended as required, such as NH3, SO3, N2O, etc.

FTIR-3000 is featured with high precise waste incineration/ultra-low flue gas emissions deterministic and quantitative analysis. One analyzer can measure more than 10 gas components. It is compact design, highly integrated, that greatly reducing the investment & maintenance costs for continuous emission online monitoring system.


Working Principle       

The FTIR-3000 Gas Analyzer is designed based on the principle of Fourier Transform Infrared Spectrum Technology. The sample gas molecules absorb specific frequencies of infrared light energy, and form the corresponding absorption spectra. It can be used to simultaneously measure multiple gases.

The analyzer mainly consists of an infrared light source, aperture, interferometer (beam splitter, moving mirror, fixed mirror), sample gas chamber, detector, as well as various infrared mirrors, lasers, control circuit boards, and power supplies.

The light emitted by the light source is split into two beams by a beam splitter, one beam is transmitted to the moving mirror and the other beam is reflected to the fixed mirror. Two beams of light are reflected separately by a fixed mirror and a moving mirror before returning to the beam splitter. The moving mirror moves in a straight line at a constant speed, resulting in an optical path difference between the two beams after being split by the beam splitter, this causes the interference. The interference light passes through the sample gas chamber after converging in the beam splitter, and the interference light, which containing the sample gas information reaches the detector after passing through the sample gas. The detected signal is digitized and Fourier transformed by a computer. The infrared absorption spectrum of the sample gas been obtained finally. Each gas has absorption at a specific position in the spectrum. Through analyzing the channel spectrum, the concentration values of each gas can be calculated.

FTIR-3000傅里叶红外分析仪原理图

Application          

•      Waste incineration power plant;

•      Hazardous waste incineration;

•      Medical waste incineration;

•      Biomass power plant;

•      Petroleum metallurgy and petrochemical



Measuring gas:

SO2, NO, NO2, NOx, CO, CO2, H2O, CH4, HCl, HF, O2

Measuring priciple:

SO2, NO, NO2, NOx, CO, CO2, H2O, CH4, HCl, HF,:  FTIR;

O2 :  Zirconia

Measuring range:

SO2:  0 - 500mg/m3

NO： 0 - 300mg/m3

NO2：0 - 300mg/m3

NOx：0 - 759mg/m3

CO： 0 - 300mg/m3

CO2： 0 - 20%vol

O2： 0 - 25%vol

H2O： 0 - 32%

CH4： 0 - 400mg/m3

HCl： 0 - 100mg/m3

HF：  0 - 80mg/m3

Zero drift:

≤2%F.S./7d

Span drift:

≤2%F.S./7d

Linearity error:

≤2%F.S.

Repeatability:

≤2%

Response time:

T90≤90s

Sample gas flow rate:

≥ 2L/min

Pressure:

Ambient pressure ±0.1Bar

Temperature:

180℃

Humidity:

<90%RH, no condensation.

Communication interface:

RS485, RS232, USB, 4-20mA, RJ45

Communication protocol:

ModBus RTU, communication protocol can be customized

Power supply:

(220±10%)VAC, 50/60 Hz

Power consumption:

600W

Working temperature:

15~35 oC

Working humidity:

<85%RH, no condensation.

Dimension:

483(W) × 610 (D) × 221(H) mm

Net weight:

Approx. 30Kg

Calibration:

Automatic zero-point calibration interval setting:

The zero-point automatic calibration interval can be set and adjusted within 1-60000 hours.

Zero-point calibration time/ purging time setting:

Automatic zero-point calibration time, purging time can be set within 1-300s

Upper and lower limit alarm:

The alarm signal been output based on the pre-set upper and lower limits of the alarm.

When the measured concentration values of each component exceed the alarm upper limit or fall below the alarm lower limit, the alarm will be triggered.