Zetian/Portable flue gas analyzer/Stack analyzer/emission control/emission monitoring/Flue gas analyzer/EM-5P/cement/steel making/acceptance checking
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EM-5P portable gas monitoring system consists of analysis modules, gas pretreatment device, sampling unit and heat tracing pipe. With only one complete system, it can be used to monitor S02, NO, 02, CO, C02, temperature, pressure and flow in flue gas. Sampling unit It is made of stainless steel material. The part contacted with gas can be heated to 120^ to prevent moisture condensed and avoid gas loss to ensure completeness of measured gas. It only takes about lOmins heating to 120^. Gloves should be worn when operating this probe as not to burn. Heat tracing pipe Imported heating wire is adopted and series connected. The complete pipeline is heated to 120^-150^. It is used to connect with sampling probe and main analyzer. Gas pretreatment device Sampling pump of high suction capacity is built in to provide negative pressure suction. Within 80-160Kpa, sampling can works normally. The sampling flow can be controlled within (1.5±0.5)L/Min by adjusting the knob. Semiconductor condenser of high performance is equipped to fast remove the vapor and avoid S02 loss. The temperature controller provides constant temperature control for heating pipe. Using PID algorithm, the control accuracy reach up to 0.1 Portable gas analyzer This portable analyzer adopts DOAS technology to detect S02/N0x , free from the interference of dust, moisture, CO, C02, HCI and other background gas. Multiple reflection gas cell is adopted to achieve low detection limit and satisfy the accuracy requirement for ultra-low emission; NO and N02 can be directly measured to obtain NOx value. No converter is required. As per different site demand, CO, C02, temperature, pressure and flow can be customized. Sample detector of temperature, pressure and flow is optional. High accuracy, small drift and fast response No cross interference with ultra violet spectrum technology No moving optical components Adapt to the occasions with high content of humidity and dust Auto checking gas tightness of the pipeline • No preheating is required to achieve fast measurement • Customizable for multi-parameters: S02, NO, N02, 02, CO, C02temperature, pressure, flowrate and sampling rate • Be able to calculate excess air coefficient, gaseous pollutant emission • Emergency substitute solution for continuous emission monitoring system

Ultraviolet differential optical absorption spectroscopy (DOAS). Due to the same gas has different absorption in different spectral band, the absorption of different gases in the same spectral band has superposition effect. Through the analysis of continuous spectrum, a variety of gas can be measured at the same time. The holographic grating is used for light splitting of light absorbed by gas to be measured, sensor array are used to convert the spectral optical signals into electrical signals, after obtaining the continuous absorption spectra of medium, and a variety of gas can be measured...