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Ammonia escape detection
During the operation of denitrification equipment, in order to ensure that NO emissions meet environmental requirements, there may be excessive inject
Product details
Specification: Applied to the off sales process of thermal power plants
Optical principle: UV spectroscopy
The UV spectroscopy method ensures a solid and highly stable low maintenance measurement system (without moving parts).
The UV light source uses a flash xenon lamp with an ultra long lifespan (1-3 years). No thermal effect, reducing measurement drift to a small level.
To adapt to different concentration ranges, flow cells with different optical paths between 40mm and 1200mm can be selected.
In order to greatly reduce the optical and electromechanical design, the spectrometer design is mainly based on a concave grating. The spectrum is recorded on a 512 or 2048 pixel diode array or CCD.
The reference signal can be automatically calibrated using air or nitrogen. The calibration cycle can be set, usually every 2 or 4 hours, and sometimes it can also be set.
Multi gas parameter configuration:
If the selected algorithms and wavelengths for each component of the sample gas are compatible, multiple gases can be measured simultaneously on the same instrument. The high selectivity of the analyzer for gas measurement is attributed to the use of the correct algorithm to identify the specific UV absorption spectra of each gas.
Ammonia escape detection
CO, CO2, and CH4 do not interfere as these main emission gases do not have UV absorption, so they do not interfere with the measured gas.
UV spectroscopy method:
Ammonia escape detection
Easy to operate interface for users
The color touch screen facilitates users to operate the instrument's settings, inspection, and other interfaces. A protective film is attached to the surface of the touch screen to prevent damage to the screen, especially from soluble or corrosive liquids.
Nitrogen oxides (NOx) are produced during high-temperature combustion processes and are a major air pollutant that can cause lung diseases and acid rain. The vast majority of nitric oxide (NO) in exhaust gas can be effectively reduced through the following reactions:
4NO + 4NH3 + O2 → 4N2 + 6H2O
Attention should be paid to controlling the amount of ammonia here, as excessive ammonia can produce ammonium salts, especially ammonium sulfate, which is highly corrosive and can cause blockages in the exhaust gas pipeline. Ammonia is also a very important atmospheric pollutant.
Due to the sulfur content in coal, coal-fired power plants produce a large amount of sulfur dioxide (SO2), so the SO2 content needs to be detected before and after the desulfurization process.
The levels of nitrogen oxides (NOx) and sulfur dioxide (SO2) emitted from chimneys are very low, and their levels also need to be monitored. In order to strictly control the emissions of NO and SO2 (corresponding concentrations usually do not exceed 50mg/m3 and 30mg/m3),
The company has newly developed a multi-path flow pool to meet this demand.
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