Sampling apparatus and method used for estimation of source intensity of non-point atmospheric pollution source
A sampling device and non-point source technology, which are applied in the field of sampling of air pollution non-point source intensity estimation to achieve the effects of good aerodynamic performance and uniformity
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Embodiment 1
[0037] Estimation of Surface Emission Sources from Landfill Sites
[0038] A sampling method for estimating surface source intensity at landfill sites, which uses sampling devices such as figure 1 As shown, it includes a frequency conversion fan 1 connected in sequence by pipelines, an activated carbon tank 2, a differential pressure flowmeter combination composed of an interconnected differential pressure flowmeter 3 and a pressure transmitter 4, and a sampling wind tunnel 5. The sampling wind tunnel 5 The outlet is connected to the wind tunnel outlet mixing pipe 9, and the wind tunnel outlet mixing pipe 9 is provided with a sampling port 10.
[0039] The sampling wind tunnel 5 is made of polished stainless steel, which is corrosion-resistant and prevents the deviation of measurement results due to adsorption and cross-contamination. The ratio of the cross-sectional area of ventilation is controlled between 0.4 and 0.8. There is an opening at the bottom of the sampling win...
Embodiment 2
[0042] Estimation of Source Intensity Sampling Determination of Surface Emission Sources on Liquid Pool Surfaces
[0043] A sampling method for area source intensity estimation of liquid pools, the sampling device used is such as figure 2 As shown, it includes a frequency conversion fan 1 connected in sequence by pipelines, an activated carbon tank 2, a differential pressure flowmeter combination composed of an interconnected differential pressure flowmeter 3 and a pressure transmitter 4, and a sampling wind tunnel 5. The sampling wind tunnel 5 The outlet is connected to the wind tunnel outlet mixing pipe 9, and the wind tunnel outlet mixing pipe 9 is provided with a sampling port 10.
[0044] The sampling wind tunnel 5 is made of polished stainless steel, which is corrosion-resistant and prevents the deviation of measurement results due to adsorption and cross-contamination. The ratio of the cross-sectional area of ventilation is controlled between 0.4 and 0.8. There is a...
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