Deskripsi
Nitrogen Oxide Analyzer
Model : CN-LMJHB205-1
Brand : Hebei Waste Gas Treatment Equipment Co., Ltd.
Product Overview:
The CN-LMJHB205-1 NOx Exhaust Gas Analyzer is an environmentally friendly product specifically designed for real-time online monitoring of NOx concentrations in exhaust gases from gas-fired boilers and low-NOx burners. It can be configured to simultaneously monitor and analyze multiple parameters, including oxygen, carbon monoxide, and carbon dioxide, based on the customer’s site environment. The system consists of a sampling unit, a pretreatment unit, a measurement and analysis unit, and a data transmission unit. Utilizing advanced industrial sensor networks, automated control, wireless communications, and database technologies, it enables 24-hour real-time monitoring of small boilers, smokestacks, low-NOx burners, and other related equipment. It is widely used in industries such as petroleum, chemical, printing, rubber products, plastics, pharmaceuticals, electronics, and industrial coatings.
Parameter measurement principle:
Electrochemistry (optional UV differential spectroscopy module); measuring gases: NO, O2; measuring range: NO, NO2 – 0-100mg/m3 (range can be customized); measuring accuracy: ±3%FS; resolution: NO, NO2 (0.1mg/m3); O2 (0.1%); linearity error: ±2%FS; zero drift: ±2%FS; storage capacity: 4G, data storage is far greater than 2 years; warm-up time: 30min; voltage influence: ≤1%; insulation resistance: ≥20 MW;
Dielectric strength: No abnormal phenomena such as arcing and breakdown; Display window: 7″ high-definition true color digital screen, resolution 800X480; Communication interfaces: RS232, RS485, 4-channel 4-20mA analog output, DTU wireless output; Power requirement: AC180~240V, 50Hz, 800W; Operating temperature: -20℃~300℃;
Operating humidity: <90%RH; Dimensions: Main unit: 800mm * 560mm * 300mm;
The system adopts an extractive cold drying method in accordance with CEMS standards and is equipped with dual-channel semiconductor cooling, KNF sampling pump, gas-water separator, fine filter, etc. The system can use high-precision electrochemical sensors with a resolution of up to 0.1ppm. The system can also use a UV spectrometer flue gas analyzer module, which is stable and reliable. The sampling probe has a simple structure, constant temperature heating, and a ceramic filter element, making it very easy to maintain. A heating pipe interface is reserved for Prevents condensation in winter. It has a large data storage capacity, with minute data stored for 2 years, and can be exported via the USB port. A built-in DTU wireless module enables real-time network upload to the environmental monitoring platform. The instrument can automatically perform zero-point calibration every day to enhance data reliability. It has automatic alarm and recording functions in the event of failure, power outage, or abnormal detection data exceeding the standard. Touch screen display, simple and convenient operation, clear interface.
System Introduction :
The coke oven gas oxygen content analysis system is a monitoring interlocking device specially designed and manufactured for the operation of the electric coke precipitator system. The device absorbs the advantages of similar products at home and abroad, and is designed for the harsh working conditions of high dust, high humidity, sulfide, naphthalene and other coke oven gas. As we all know, the level of O2 content in the electric coke precipitator is a key parameter affecting the operation of the electric coke precipitator system. This device continuously monitors the changes in O2 content and automatically sends out O2 excessive pre-alarm signals and interlocking signals in time to ensure the operation of the electric coke precipitator. This device is specially designed for the current domestic coke oven gas working conditions. The process analysis device has been successfully used in many domestic coking, chemical, and gas generation equipment manufacturers, and has achieved good economic and social benefits for the enterprises, and won unanimous praise from users.
System composition block diagram
Product features :
It adopts independent distillation separation technology, which has a filtering effect on impurities such as tar, benzene, and naphthalene. This significantly extends the maintenance cycle (maintenance cycle is 6 months).
Using electrochemical technology, it features high detection accuracy, excellent long-term stability, strong vibration resistance, and a long service life.
Electronic refrigeration technology rapidly cools the sample, allowing moisture in the gas to precipitate rapidly.
The entire system is constructed of stainless steel, ensuring a long service life.
It is simple to use, easy to maintain, and highly automated.
Design and Configuration Description :
1. Configuration Principles: Key components in this analyzer (such as the electric ball valve, vacuum pump, peristaltic pump, filter, sensor, PLC, etc.) are original equipment. Other key, major, and general components that guarantee long-term operation are manufactured by domestic joint ventures and our own factory, minimizing ongoing maintenance costs.
2. The main technical features of this analyzer are as follows: Except for the sampler and dedicated filter assembly, the sample gas pretreatment unit, power supply unit, and analysis and calibration unit are all housed in the analyzer cabinet and fully commissioned before shipment. On-site installation of the probe, auxiliary sampling lines, external power supply, and analyzer cabinet are all required. The supplier’s technical staff will provide on-site guidance for installation and commissioning.
3. The analysis cabinet is made according to the standard and has a large observation window for easy maintenance by the operator.
4. The system is a fully dry process and will not affect the analysis components. The sampler, sampling tube, various pipe joints (parts in contact with the sample gas), and vacuum pump are all designed to be corrosion-resistant. Pumps and other materials are made of corrosion-resistant stainless steel, polytetrafluoroethylene or special corrosion-resistant treatment, which improves the corrosion resistance of the system. The service life of the system is guaranteed.
5. The automatic dehumidifier is used, which has the characteristics of long service life, low maintenance workload, stable dehumidification effect, etc. The residual water vapor in the sample gas will be , thereby achieving the purpose of drying the sample gas and avoiding the interference of water vapor on the instrument.
Main technical parameters of the system :
Measuring range: O2 (0.00~2.00)% or (0.00~5.00)% (range optional)
Permissible error: ±1%FS
Resolution: 0.01%
Stability: Zero drift ±1%FS/7d; Span drift ±1%FS/7d
Repeatability: 0.1%
Warm-up time: 10min
Sample gas flow rate: 6L/min
Sample gas interface size: G1/2
Electrical interface size: 1/2NPT
Working power supply: AC2 20V±10%, 50HZ
Working environment: temperature 10℃～+45℃; humidity ≤90%RH
Explosion-proof grade: ExdIICT6
Analog output: 4～20mA
Sample gas pressure: -10KPa～+15KPa
Sample gas temperature: 80～150℃
System performance :
Industrial screen display: The actions of each component can be displayed intuitively, and the operation interface is friendly
Data display: Real-time collection and display
Historical data: Record and save, and click the button to view the historical curve: Record and save, and click the button to view the alarm record: Record the alarm information that has occurred
Fault record: record the fault information that has occurred.
Support data export: through the interface operation, the data can be exported to the U disk.
Support one control cabinet to analyze four sample gases at the same time.
Support one control cabinet to analyze four gases at the same time.
Gas pretreatment system, the purified gas source
supports online calibration
concentration value through 4-20mA output.
Coke oven gas composition and content :
Sample composition (before gas purification)
CO2 1.5%-3%
N2 3%-7%
O2 0.3%-0.8%
CH4 23%-27%
CO 5%-8%
H2 50%-60%
NH3 6g/m3
H2S 6g/m3
Application :
Coal, chemical plants, power plants, metallurgical plants and other factories that produce coal gas
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