JD-8 aerosol generator Introduction: JD-8 aerosol generator is a device that absorbs foreign experimental methods for calibrating the performance of particle counters and dust detectors, and generates a certain concentration of aerosol particles to specifically calibrate dust particle counters and dust detectors. After passing through the high-efficiency filter, dry compressed air becomes clean air, and some of the clean air is sprayed into the atomization head. By utilizing the injection effect of compressed air, the particle diluent is sprayed out of the atomization head and atomized by high-speed airflow, forming droplets. After mixing with other clean air and drying, the droplets form standard suspended particles and enter the mixing balance distributor. The particle counter and dust detector measure the particle size and concentration of suspended particles by inhaling inspection air from the distributor. Finally, the accuracy is determined by comparing the counting of the reference device and the instrument to be tested connected to this device. Features: 1. Used for experiments and testing on the accuracy, threshold, sampling efficiency, anti-interference, and environmental adaptability of aerosol detection and collection equipment; 2. Used for evaluating the counting efficiency and accuracy of particle counting instruments and equipment; 3. Used for inhalation toxicity experiments, PM2.5 particulate matter inhalation toxicity experiments, coal, mining and other environmental microparticle inhalation toxicity experiments, and other powder particles and drug inhalation studies; 4. Used for particle logistics field tracing, LDA, L2F, flow visualization, and inhalation testing; 5. Used for particle size analysis and laser refractive particle size spectrometer; 6. Used for filter testing, quality control, dust capacity testing, classification efficiency curve, and total efficiency curve; Technical parameters: Types of simulated occurrence: biological aerosol, polystyrene standard particle aerosol microsphere, conventional water-soluble/oil soluble liquid aerosol, Arizona powder; Particle size range of monodisperse aerosol: 0.1 μ M~10.0 μ M; Concentration of monodisperse aerosol: 1000/28.3L~100000/28.3L, concentration repeatability ＜ ± 10% Concentration range of polydisperse aerosols: 0.1mg/m3~200mg/m3; Evaluation flow range: 1L/min~400L/min; Support the use of pipelines to extract aerosols for testing; Aerosol stabilization time: ≤ 25 minutes; Stability after 8 hours of concentration occurrence: 6% ± 3 μ G/m3 Continuous working time of the system: ≥ 24 hours; Air flow rate in the evaluation section of the experimental cabin: ≥ 4500 L/min, with controllable flow rate; Experimental cabin: The effective volume of the testing area is 1000 L, and the effective length of the testing area is 1.28 m; Upper limit of simulated altitude for atmospheric pressure in the experimental cabin: 8800m; Relevant designs, etc., comply with the relevant requirements of pressure vessels; The uniformity error of aerosol mass concentration distribution in the test area of the experimental cabin: stable physical particles<± 6%; Biological particles ＜± 20% (Serratia marcescens) Stability error of aerosol mass concentration in the experimental cabin testing area: Stable physical particles ＜ ± 6% (4 hours); Biological particles ＜± 20% (Serratia marcescens) (2 hours) Temperature control range of environmental simulation cabin: -41 ℃~63 ℃ Humidity control range of environmental simulation cabin: 20% RH~95% RH (25 ℃) Environmental simulation cabin: overall size 5.7m × 5.5 m × 3.3 m (length × wide × High); Internally placed aerosol experimental cabin to meet the operational requirements of the aerosol experimental cabin Average load at system installation location: 200kg/m2 Power supply: 220V/50Hz Power: 2000W
Introduction: JD-8 aerosol generator is a device that absorbs foreign experimental methods for calibrating the performance of particle counters and dust detectors, and generates a certain concentration of aerosol particles to specifically calibrate dust particle counters and dust detectors. After passing through the high-efficiency filter, dry compressed air becomes clean air, and some of the clean air is sprayed into the atomization head. By utilizing the injection effect of compressed air, the particle diluent is sprayed out of the atomization head and atomized by high-speed airflow, forming droplets. After mixing with other clean air and drying, the droplets form standard suspended particles and enter the mixing balance distributor. The particle counter and dust detector measure the particle size and concentration of suspended particles by inhaling inspection air from the distributor. Finally, the accuracy is determined by comparing the counting of the reference device and the instrument to be tested connected to this device.
