System Overview
Characteristic Gases Online Monitoring System uses PLC, Industrial Personal Computer and the software system which is independent developed by Huali. It could collect and process data, conduct real-time monitoring, generate diagrams and reports as well as control the system operation. It can accurately measure the gas concentration of HF, HCl, HBr, HI, HCN, CO, CO2, CH4, C2H2, C2H4, C2H6, C3H8, CH2CHCl, NO, NO2, NH3, H2S, H2O, O2, etc. The system has the features for high measuring precision, remote network monitoring, stable and reliable operation, high price-performance ratio.
Working Principle
System using the technology of tunable diode laser spectroscopy analysis, and using near infrared tunable lasers (TDL) as spectral absorption gas detection system of light source. According to Lamber-Beer law, the specific gas absorb only a specific wavelength spectrum, absorptive intensity is proportional to the concentration of the gas, according to detect gas absorptive strength, to calculate the concentration of particular gas.
Application Field
● Monitor the volatile and process of virgin smelting aluminum HF.
● Monitor exhaust emission of incineration industry.
● Monitor the emissions from the industries about aluminum, ceramic and brick.
● Monitor volatile gas of industrial hygiene and landfill, monitor the emissions from the industries about petroleum and chemical.
● Monitor the NH3 of ammonia denitration in power plant.
● Monitor the emissions from the industries about ceramics, glass industry, freon manufacturing, semiconductor manufacturing and hydrofluoric acid manufacturing.
