What are the characteristics of the instruments of the ammonia escape online monitoring system?

The ammonia escape online monitoring system is based on the technical principles of tunable semiconductor laser absorption spectroscopy and ultraviolet differential absorption spectroscopy. The system includes three parts: preprocessing, gas analysis module and data processing and display. The gas to be measured passes through the high-temperature sampling probe for dust removal, high-temperature transmission through the heating pipe, and enters the high-temperature gas analysis module for analysis and measurement. Features of the ammonia escape on-line monitoring system instrument: It adopts the hot and humid sampling method, which is not limited by the installation conditions on site, has wide applicability, and is easy to use and maintain; adopts high-resolution spectral technology, and is not interfered by other gases during measurement, which can effectively reduce dust Compared with other analysis methods, this feature has obvious advantages compared with other analysis methods; It adopts the second harmonic principle, and under the same optical path conditions, it has high resolution and can realize ultra-low concentration NH3 measurement; Line scanning technology can effectively lock the absorption peak position, reduce background interference, and improve the test signal-to-noise ratio and test sensitivity. The sample is traced at high temperature throughout the whole process from sampling to analysis. There is no cold spot in the process to ensure that the data is not distorted. The integrated system design is convenient for installation and maintenance. Intelligent control system, automatic purging of sampling probes, high-precision temperature control, automatic alarm when temperature exceeds the limit, and unattended 24-hour work during the whole analysis process. Analysis of the hazards of ammonia escape online monitoring system for ammonia escape: 1. The escaped ammonia gas causes waste of funds and environmental pollution; 2. Ammonia escape will corrode the catalyst module, cause catalyst deactivation and blockage, and greatly shorten catalyst life; 3. Excessive escaped ammonia will be absorbed by fly ash, making the aerated block unsalable; 4. The escaped ammonia will form ammonium sulfate salt (corrosive and cohesive) with SO3 in the air, making the Blockage and corrosion of the heat storage element of the device.