NOX nitrogen oxide online monitoring system TH-2000-C

Product description of NOx online monitoring system TH-2000-C:


TH-2000-C nitrogen oxide online monitoring system is mainly used in the gas analysis industry.


Main inspection occasions: gas boiler exhaust gas monitoring, online pollution source monitoring, flue gas emission, desulfurization and denitrification, boiler exhaust gas, sewage pipeline gas detection and analysis, high-temperature and high-humidity gas detection and analysis, etc.


The main principle is: the sampling unit collects the flue gas or the gas to be measured on site, the pretreatment unit cools the gas, dehumidifies, filters the dust, and keeps the temperature and humidity of the gas to be measured within a certain range, and the gas detection unit detects and analyzes the gas to be transported The incoming gas will display the measured gas concentration on the display screen in real time, and transmit the data signal to PLC or computer terminals. It can also be transmitted to various environmental protection bureaus or cloud servers via wireless GPRS (DTU) or network. Reading data from the server can realize global network monitoring and analysis. The whole process is automated and does not require human intervention.


TH-2000-C nitrogen oxide online monitoring system is suitable for gas detection and analysis in low dust, high temperature and high humidity occasions. If the dust content of the measured gas is high, it is necessary to select an automatic back blow system or reserve a back blow interface regularly Connect compressed air for back-blowing, otherwise the dust filter needs to be manually maintained and cleaned regularly. The TH-2000-C gas pretreatment system has a built-in dual-stage electronic condensation and dehumidification system and a 0.5-meter fine dust filter sampling head (flange installation), a sampling distance of 40 meters, automatic cooling, automatic drainage, and tar filtering. For the detection and analysis of water-soluble gas and the outdoor freezing environment in winter, to prevent the sampling pipeline from freezing, it is necessary to choose a thermal insulation and electric heat tracing constant temperature control system. If you have high requirements for the dryness and cleanliness of the gas to be tested, please choose TH-3000 series, including heat preservation and electric heating thermostat control system, two-stage high-efficiency compressor water-cooled dehumidification system, which can stably control the dew point of the gas at 4 ℃ or 5℃






The nitrogen oxide online monitoring system refers to laws and regulations:






"Emission Standard of Air Pollutants for Thermal Power Plants" GB13223-96


"The Air Pollution Prevention and Control Law of the People's Republic of China" came into effect on September 1, 2000


"Technical Specification for Typical Equipment of Continuous Flue Gas Monitoring System in Thermal Power Plants" G-HB97-01


"Technical Regulations for Continuous Monitoring of Flue Gas Emissions in Thermal Power Plants" HJ/T-2000


"Measurement of Particulate Matter and Sampling Method of Gaseous Pollutants in Emission of Stationary Pollution Sources" GB/T16157-1996


"Technical Conditions of Flue Gas Sampler" HJ/T47-1999


"Technical Conditions of Flue Gas Sampler" HJ/T48-1999


"Technical Specification for Continuous Monitoring of Smoke Emissions from Stationary Pollution Sources" HJ/T75-2007


"Fixed pollution source flue gas continuous monitoring system requirements and detection methods" HJ/T76-2007






Product features of nitrogen oxide online monitoring system:






Optional explosion-proof and waterproof design (non-explosion-proof, protection grade IP66, outdoor type), fast, reliable and stable detection. The gas analysis unit can be built into the chassis or externally. The standard sampling distance is 30-40 meters, and the sampling distance of the optional vacuum pump is more than 70 meters. The standard pretreatment temperature of TH-2000-C is 600℃, higher temperature can be customized, TH3000 can pretreat the flue gas at 2000℃.


Standard configuration: 7-inch display, which can display various probe parameters and control other equipment. Optional: no display window


Optional: network transmission, 4-20mA input, RS485 input, 4-20mA output, RS485 communication.


Optional: no display window, GPRS wireless transmission, sound and light alarm, data printing function, linux operating system, touch screen, 16G large capacity SD memory card, U disk storage.


Nitrogen oxide on-line monitoring system Product appearance: Dimensions: 820mm high 500mm wide 350mm thick


Introduction to the principle of the nitrogen oxide online monitoring system: The sample gas is processed according to the pressure, temperature, humidity, flow, (dust content), and cleanliness that the analyzer can accept, and the following tasks are mainly completed:


Sample sampling: Use a vacuum sampling pump or a DC brushless pump to extract the sample gas from the flue and other environments


Dust filtration: the measured gas passes through a precision dust filter and then enters the sampling pipeline. If it is a high dust environment, an automatic back blow system can be selected


Cooling treatment: The temperature of the sampling probe and sampling pipeline can be cooled, and the gas within 600 ℃ can be processed, and the higher temperature can be customized


Optional function: two-stage electronic condensation and dehumidification system, which can stably control the dew point of the gas at 4℃ or 5℃


Tar treatment: After the sample gas passes through the tar filter, the tar and residual dust are removed


Gas-water separation: Free water appears after the sample gas is cooled down through the sampling pipeline. The gas-water separator separates the gas, water and residual dust, and drains automatically.


Secondary filtration: According to the size of the site humidity, the secondary water vapor separation is carried out


Heat tracing function: This function is optional, heating, heat preservation, to prevent water vapor condensation and part of the gas from dissolving in water, and to prevent the sampling pipeline from freezing in winter


Detection and analysis: real-time detection and display of the concentration, and the data is transmitted by 4-20mA/RS485 and other signal methods, and it can also be transmitted to a remote server or environmental protection bureau or monitoring station through DTU wireless transmission or network transmission


Flow adjustment: control gas detection and analysis of intake air volume


Gas switching: switch between measured gas, standard gas or air


Backflush function: optional, reserved backflush interface, can be connected to 8mm trachea

Technical parameters of nitrogen oxide online monitoring system:


System composition: sampling unit, sample gas pretreatment unit, gas analysis unit


Detection parameters: NOX, NO, NO2, O2, optional SO2 and other various gases, can also be connected to detect wind speed, wind direction, rainfall, atmospheric pressure, pipeline pressure, temperature and humidity and other meteorological parameters, selected according to customer requirements


Measuring range: NOX (0-100 mg/cubic), NO (0-100 mg/cubic), NO2 (0-50 mg/cubic), O2 (0-30%Vol), SO2 (0-100 mg/cubic) ), other ranges are optional, depending on the actual needs of the inspection site


Detection principle: electrochemical, depending on the gas composition, concentration and working conditions of the detection site, optional infrared, laser, ultraviolet spectroscopy and other principles


Sampling temperature:-40℃~600℃ (standard), higher temperature can be customized, within 2000℃


Sampling humidity: 0~99%RH, high humidity gas can be pretreated


Host working environment:-40℃~70℃, ≤95%RH


Work mode: online continuous work, pump suction sampling (positive pressure, negative pressure, vacuum environment are available)


Sampling distance: standard 30-40 meters, the sampling distance of the optional vacuum pump is greater than 70 meters


Sampling flow: adjustable, 2 liters/minute (standard), 4 or 10 liters/minute, optional


Working voltage: 220VAC, 50HZ


Output signal: 4~20mA, RS485, multiple passive contacts, optional: DTU wireless transmission, network transmission and other methods


Dimensions: 820mm high * 500mm wide * 350mm thick


Protection level: IP66 outdoor waterproof type, explosion-proof type is optional


Display mode: the standard product is a 7-inch touch color screen display, optional non-display window, linux operating system


Data storage: Optional 100,000 pieces of data or 16G large capacity SD memory card, U disk storage


Printing method: no printing function, optional wireless bluetooth printer for printing


Alarm mode: optional integrated sound and light alarm or external sound and light alarm






List of accessories for nitrogen oxide online monitoring system:






1 set of online monitoring system (including 1 corresponding gas detector)


Product manual 1


Infrared remote control 1


PC computer connection software (sent by for free) 1 copy


RS485 modbus (RTU) communication protocol (send by ) 1 copy