In-Situ Flue / Stack Gas Analyzer - Vasthi Instruments

Flue Gas Analyzer is a highly integrated single-flange gas monitoring equipment, of which, the core detection module adopts A nondispersive infrared (NDIR) and Differential Optical Absorption Spectroscopy (DOAS) gas absorption technology with independent intellectual property rights.

Extractive Flue / Stack Gas Analyzer

The gas analyzer OMGA-2000 UV online monitoring gas analyzer is a one-site installation gas analyzer that has been developed after years of research and design on online gas analysis instruments. It can monitor gas parameters including the concentration of SO2, NOx, O2, dust, humidity, temperature, flow, etc. It is widely applied to tall gas emission monitoring and process analysis in many fields, including coal-fired power plants, waste-to-energy plants, cement factories, glass factories, lime factories, sinter coke ovens, the DeSox process, and the DeSox process flow principles.

Under the work of a high-temperature sampling pump, the gas passes through the sampling probe (filter cartridge included), ball valve, heating tracer, secondary filtration, and then enters into the UV analysis module, where it is finally drained. Adopting 150°C high-temperature heat tracing for the whole process can effectively prevent SO2, HCL, and other detected gases from being dissolved and lost in condensed water. By controlling the back-blowing valve impulse, the system can regularly back below the filter cartridge of the sampling probe and close the ball valve, preventing high-level dust from blocking the filter cartridge.

The Online Flue Gas Analyzer supports auto or manual calibration (zeroing and spanning calibration); the measuring flow path needs to be closed when calibration is working. A pressure transmitter can be used to compensate for the measuring valve and also to check if the probe is blocked. Secondary filtration is adopted to protect the UV analysis module to ensure it will not be polluted by flue gas and dust when the probe is leaked or the temperature control is invalid.

Gas analyzers are analytical devices that measure the concentration or quality of a selected gaseous compound within a mixture of multiple gases. They're used across a wide range of industries—such as agriculture, manufacturing, and waste management—to help facility owners and managers monitor gas levels in their operations to make sure the numbers are within a suitable range for the security of employees and therefore the quality of products or processes.

FEATURES :

1. OMGA- 2000 adopts NDUV and PLS which is the hard-hitting online analysis technology for measuring SO2, NOX, and other gases with a low detection limit of 0.1 ppm;
2. Uses pulsed xenon lamp as light source with 109- time service life; high stability; no pre-heating time;
3. Is with no light-cutting, interferometer, or other optical moving parts; high reliability; on-site vibration will have no damage to the analyzer and no impact on measured value;
4. Directly detects NO and NO2 to obtain NOX without NO2 NO converter;
5. User modularization design of light source, spectrometer, HMI module, gas chamber, interface module and etc., with high reliability and extensibility; easy to maintain
6. Splits light by holographic granting; detects by diode array; finally gets complete successive absorption spectrum; is with high resolution; guarantees low detection limit, low-temperature drift, and fast response time.

In-Situ Flue / Stack Gas Analyzer

The OMGA-2000 Flue Gas Analyzer is a highly integrated single-flange gas monitoring equipment, of which the core detection module adopts nondispersive infrared (NDIR) and differential optical absorption spectroscopy (DOAS) gas absorption technology with independent intellectual property rights. The specially designed measuring cell effectively improves optical path length for gas absorption, which can measure trace gas accurately inside the pipeline!The ILTA-1000 can be widely applied in online gas monitoring situations including denitrification devices, boiler flues, exhaust detection, etc. One piece of equipment can realize online monitoring for multiple gas components, such as CO, CS, NO, NO„, etc.

NDIR Principle

The main components of an NDIR sensor are an infrared (IR) source (lamp), a sample chamber or light tube, a light filter, and an infrared detector. The IR light is directed through the sample chamber towards the detector. In parallel, there is another chamber with an enclosed reference gas, typically nitrogen. The gas in the sample chamber causes absorption of specific wavelengths according to the Beer-Lambert law, and the attenuation of these wavelengths is measured by the detector to determine the gas concentration. The detector has an optical filter in front of it that eliminates all light except the wavelength that the selected gas molecules can absorb.

FEATURES :

• Filter elements can be easily disassembled and replaced.
• Adopt a single flange design with high integration and easy installation.
• With a high-temperature flowmeter, users can observe flow during equipment operation.
• Sampling measurement is free from the interference of pipeline deformation, high dust, and other working condition change, with strong adaptability.
• The whole gas path is equipped with high-temperature heat tracing and regular auto-purge to prevent dust and crystal-like salt from blocking the equipment, less maintenance.

‘Vasthi’ had proven its credibility & reliability in Process Industry,by delivering zero flaw devices. Vasthi make measuring & safety instruments.