A calibration device and method for a fixed source dilution channel sampler
A calibration device and fixed source technology, applied in sampling devices, measuring devices, sampling, etc., can solve the problems of large changes and lack of operating parameters of particulate matter instruments, and achieve the effect of improving calibration efficiency and collection accuracy
Active Publication Date: 2020-06-16
CHINESE RES ACAD OF ENVIRONMENTAL SCI
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Problems solved by technology
The existing simulation test device for studying aerosol particles is usually a box, which is used to generate aerosol particles and then carry out static calibration of the instrument, which cannot control and simulate the actual conditions such as pressure and wind speed. Simulation of the real environment in areas with high altitude, low pressure and low temperature, so that the operating parameters of the particulate matter instrument vary greatly in complex environments
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[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0033] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0034] figure 1 It is a structural schematic diagram of the calibration device of the fixed source dilution channel sampler of the present invention. Such as figure 1 As shown, the calibration device includes: f...
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The invention discloses a stationary source dilution duct sampler calibration device and method. The stationary source dilution duct sampler calibration device comprises a fan, an air duct, an aerosolduct, a heating device, a water vapor conveying device, and a standard dust device; a first end of the air duct is connected to a first end of the aerosol duct through the heating device; the fan isfixed to a second end of the air duct; a dust entrance and a water vapor entrance are also arranged on the wall of the first end of the aerosol duct; the water vapor conveying device is connected to the aerosol duct through the water vapor entrance; the standard dust device is connected to the aerosol duct through the dust entrance; multiple sets of test ports are also arranged on the wall of a middle section of the aerosol duct, each set of test ports includes a plurality of test ports, and the plurality of test ports of the same set are evenly distributed around the wall of the aerosol dust;and a sampler tests the dust concentration in the aerosol duct through the test port. By means of the stationary source dilution duct sampler calibration device and method, the sampler can be calibrated in real time to improve the using accuracy of the sampler.
Description
technical field [0001] The invention relates to the field of sampler calibration, in particular to a calibration device and method for a fixed source dilution channel sampler. Background technique [0002] Particulate matter sampling and analysis instruments are widely used in the fields of environmental protection and scientific research, including stationary sources (steel factory chimneys, cement factory chimneys, heating boiler chimneys, etc.), mobile sources (automobiles, airplanes, ships, etc.) and environmental receptors (monitoring station samplers) The analysis of air quality involves the analysis of particulate matter, including particle number concentration, mass concentration, mass spectrometry component analysis, etc., all of which require relevant particulate matter collection and analysis instruments. When sampling and analyzing data with existing particulate matter instruments, due to the unknown sampling environment, phenomena such as data inaccuracy, over-r...
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IPC IPC(8): G01N1/22
CPCG01N1/2273
Inventor 杨文殷宝辉韩斌耿春梅张楠赵若杰王歆华王静苗云阁马银红王健刘盈盈白志鹏
Owner CHINESE RES ACAD OF ENVIRONMENTAL SCI