Continuous Emission Monitoring System (CEMS)
Application
Application for exhaust emission monitoring and process control such as coal-fired power plants, garbage power plant, cement, glass, lime factory, ceramics factory, sinter, coke oven, deSOx, deNOx technology.
Gas sample in flue passes through the probeHeat pipe, filter, sampling solenoid valve, sampling pump and filter in the chassis, then reaches to measuring cell. After analysis the concentration of all components, the sample gas will be drained through sampling pump.
By controlling sampling ball valve and purging solenoid valve, the system can regularly purge to the probe. It can also realize the regular calibration of the analyzer.
The system has the function of integral calibration.
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Measuring technique |
SO2, NO, NO2：UV DOAS O2：electrochemical (built-in), zirconia（extraposition） CO：electrochemical or infrared NDIR technology CO2：infrared NDIR technology |
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Measurement range |
SO2, NOx：0-300-3000ppm；0-100-300ppm；0-20-100ppm；（optional, can be customized）,O2：(0-25%), Humidity: 0-40%, Dust: (0-200mg/m3)～(0-10g/m3) Flow rate: 0-40m/s（can be customized） Humidity：0-800℃（can be customized） Pressure：-10kPa～10kPa（can be customized） |
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Output signal |
RS232，5×4-20mA, configurable |
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Input signal |
3× DC4-20mA, configurable |
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Power supply |
220VAC, 2500W |
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Operating conditions |
Ambient temperature: -20℃~50℃ Ambient humidity: 5%～95%RH, non-condensing |
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Heating temperature |
120ºC～180ºC |
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Flow rate |
（1.5±0.1）L/min |
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External dimension |
600mm×800mm×1800mm |
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Weight |
≈200kg |
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Enclosure rating |
IP65 |
Features
1. Fast dehydration and cooling by two-step condensing, reducing contact time of air and water, lower SO2 loss
2. Analyzer uses micro-heating technology, reducing maintenance cycle of lens
3. Fast sampling by loop sampling pumps, shorten response time
4. Dehydration and dedust by multi-stage filtration, high reliability
5. Calibration for whole precess can be realized
