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        2020-04-12 12:35

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      Company Profile
      Xi'an Dingyan Technology Co., Ltd.








      No.22, Zaozitai Road, New Industrial Park, High-tech Zone, Xi'an, Shaanxi Province.


      Product details


      CEMS is suitable for the online monitoring of chimney emission. The system contains sample gas sampling unit, data control analysis unit, and data acquisition system unit.


      1. Power generation

      2. Metal smelting
      3. Cement industry
      4. Steel smelting
      5. Coal chemical
      6. Petro-chemical
      7. Heating boiler flue gas

      System Features

      1.The common parameters to measure are SO2, NO ,NO2 , O2, dust, flow velocity, temperature, pressure, humidity ,whilst it is also used for monitoring CO,CO2,H2S,Cl2,HCl,NH3,HF;
      2.Reasonable structure, stable performance, easy installation;
      3.Combined with different site conditions, to provide the best product configuration;
      4.Key parts are self - developed with independent intellectual property rights;

      Product parts details of system

      1.UV Gas Analyzer

      Measuring components: SO2, NOx,CL2.

      Measuring methods: UV DOAS.

      Strong anti-interference ability, not subject to cross-interference of gas. The gas chamber is made of corrosion-resistant material and has high durability. Using pulsed xenon lamp, the light source has slow attenuation, long life and good stability.

      2.Infrared gas analyzer:

      Measuring components: CO,CO2,NH3,CH4.

      Wide measuring range, from ppm to%, the range can be customized.
      High-precision constant temperature control to reduce the influence of ambient temperature on measurement. The isolated current loop output and switch output eliminate the influence of various interferences.

      3.Dust analyzer
      Principle: laser backscatter

      Adopt advanced technology: optical power self-adjusting and stabilizing technology, extremely low zero drift, resist harsh environment. Provide fast and accurate quantitative dust data. By turning the knob, zero and span calibration is achieved, which is convenient for installation and maintenance.

      VPT:Temperature, pressure and velocity analyzer


      Temperature: thermal resistance

      Pressure: metal diaphragm

      Velocity: pitot tube differential pressure

      Measure the flow velocity, static pressure and temperature of flue gas. The system is calibrated and tested for higher accuracy. Equipped with a blowback unit, it can regularly clean impurities in the pit tube and work continuously for a long time.

      Humidity analyzer
      Pinciple:resistance capacity

      Using high-precision resistance-capacitance sensor, high stability. Temperature compensation technology makes the measurement more accurate. Stainless steel filter to ensure the life of the sensor in high dust environment. 316L stainless steel is used as probe rod, which is corrosion resistant. The sensor automatically protects against heat and can be suitable for high humidity environments.

      ? BBWBIG硕大无比
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