ZDA-PSDI-01 type particle size distribution dilution sampling monitor Introduction: With the public's attention to the smog and particulate matter of the weather, the Ministry of Environmental Protection has gradually carried out research work on the causes of atmospheric particulate matter in major cities across the country. Zhengda Environmental Protection lasted for more than three years, and jointly developed ZDA-PSDI-01 particle size distribution dilution sampling monitor jointly developed by experts from Xi'an University of Architecture and Technology, Northwest University and Xi'an University of Electronic Science and Technology, effectively solved domestic particulate matter. In the study, the research instruments for sampling, dilution sampling and particle size distribution of particle size were used to fill the blank of domestic particle size and particle size sampling monitoring equipment. ZDA-PSDI-01 type particle size distribution dilution sampling monitor, mainly by monitoring host, impact type grading sampler, PSDI particle size distribution monitoring system, dilution sampling system, first dilution chamber, second dilution chamber, stay cabin, Pneumatic control system, weak signal processing system, and external connection components. The device consists of a sampler, a diluter, an impact grading sampling device, a particle size monitor, a weak signal acquisition processor, a particle size monitoring software, and peripheral auxiliary devices. During the product development process, the development team used a large computer to simulate the sampling, dilution, grading impact sampler, and particle size monitor, and repeated experiments and verifications for different median particle sizes in different concentration fields and velocity fields. The test results were tested by experimental methods, and the data fitting degree was over 95%. Through repeated experiments and structural optimization, the design structure of the ZDA-PSDI-01 particle size distribution dilution sampling monitor is optimized on the basis of portability and ease of operation, and has high sampling efficiency and dilution ratio. It has reached the domestic advanced level in the sampling and monitoring of particle size. Technical Parameters: 1) Protection level: IP65; 2) Working voltage: 220VAC 2000W 3) Operating temperature: 5-45 ° C 4) Humidity environment: < 90% without condensation 5) 10 inch color touch screen; 6) Flow control accuracy: ±1%; 7) Humidity control accuracy: ± 2%; 8) Dilution gas filtration efficiency: 0.01μm-0.001μm 9) Filter membrane: 47mm; 10) Dilution ratio: not less than 1:10, maximum 1:100 11) Capture rate: 100% 12) Collect particle range: Level 0: 9.0-10 μm, Level 1: 5.8-9.0 μm, Level 2: 4.7-5.8 μm, Level 3: 3.3-4.7 μm, Level 4: 2.1-3.3 μm, Level 5: 1.1-2.1 μm, Level 6: 0.65-1.1μ, 7 steps: 0.43-0.65μm, 8 steps: submicron (filter) 13) Signal acquisition: 0-500FA 14) Cutter: Impact type. 15) Number of channels: 2 channels, 8 levels of particle size, can be switched independently sampling. 16) Monitoring the number of grades: not less than eight grades, with particle size spectrum. 17) Main materials: light aviation materials, aviation grade anti-corrosion coating treatment process;
Introduction: With the public's attention to the smog and particulate matter of the weather, the Ministry of Environmental Protection has gradually carried out research work on the causes of atmospheric particulate matter in major cities across the country. Zhengda Environmental Protection lasted for more than three years, and jointly developed ZDA-PSDI-01 particle size distribution dilution sampling monitor jointly developed by experts from Xi'an University of Architecture and Technology, Northwest University and Xi'an University of Electronic Science and Technology, effectively solved domestic particulate matter. In the study, the research instruments for sampling, dilution sampling and particle size distribution of particle size were used to fill the blank of domestic particle size and particle size sampling monitoring equipment. ZDA-PSDI-01 type particle size distribution dilution sampling monitor, mainly by monitoring host, impact type grading sampler, PSDI particle size distribution monitoring system, dilution sampling system, first dilution chamber, second dilution chamber, stay cabin, Pneumatic control system, weak signal processing system, and external connection components. The device consists of a sampler, a diluter, an impact grading sampling device, a particle size monitor, a weak signal acquisition processor, a particle size monitoring software, and peripheral auxiliary devices. During the product development process, the development team used a large computer to simulate the sampling, dilution, grading impact sampler, and particle size monitor, and repeated experiments and verifications for different median particle sizes in different concentration fields and velocity fields. The test results were tested by experimental methods, and the data fitting degree was over 95%. Through repeated experiments and structural optimization, the design structure of the ZDA-PSDI-01 particle size distribution dilution sampling monitor is optimized on the basis of portability and ease of operation, and has high sampling efficiency and dilution ratio. It has reached the domestic advanced level in the sampling and monitoring of particle size.
