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Test dust generation device and method for simulating atmospheric dust particle size distribution characteristics

A technology of dust generation and particle size distribution, applied in mixing methods, measuring devices, chemical instruments and methods, etc., can solve the problems of difficult air purification equipment purification ability, difficult to reflect the actual particle size distribution characteristics of atmospheric dust, etc.

Pending Publication Date: 2018-11-13
CHINA ACAD OF BUILDING RES
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Atmospheric particulate matter pollution in my country is prominent and the society pays high attention, leading to the rapid development of the air purification industry and various technologies and products. Therefore, it is difficult to evaluate the purification ability of various air purification equipment when dealing with the actual atmosphere.

Method used

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  • Test dust generation device and method for simulating atmospheric dust particle size distribution characteristics

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Embodiment Construction

[0021] Such as figure 1 As shown, the present invention provides a kind of experimental dust generating device simulating the particle size distribution characteristics of atmospheric dust, comprising:

[0022] The first set of dust generating device includes the first compressed air source 11, the first drying pipe 12 (such as: silica gel adsorption tube) and the first filter and purification device 13 (such as: high efficiency air filter) connected in sequence, and the first filter The downstream of the purification device 13 is divided into two paths, wherein one path is connected to the sprayer in the first spray box 15 through the first pressure regulating valve 14, and the first spray box 15 is connected to the first evaporative drying pipe 16 again, and the other path is passed through the second regulator. The pressure valve 17 is connected to the first evaporative drying pipe 16; wherein, the sprayer in the first spray box 15 is a conventional Laskin nozzle or Collisi...

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Abstract

The invention provides a test dust generation device and method for simulating atmospheric dust particle size distribution characteristics. The method comprises the following steps: generating and counting solid test dust having the peak particle size in the range of 20-40nm by a first set of dust generation device; generating and counting solid test dust having the peak particle size in the rangeof 100-150nm by a second set of dust generation device; enabling the solid test dust generated by the first set of dust generation device and the second set of dust generation device and a path of dry clean air source to simultaneously enter a mixed neutralization tube, and enabling the solid test dust to be fully mixed and in contact with positive and negative electro-ions generated by an ionized ion generation apparatus arranged in the mixed neutralization tube, so that the solid test dust is wholly in an electric neutrality state; conducting away excessive charge generated by the ionized ion generation apparatus by virtue of metal tube walls of the mixed neutralization tube and ground.

Description

technical field [0001] The invention relates to a test dust generating device for simulating the particle size distribution characteristics of atmospheric dust. Background technique [0002] Atmospheric particulate matter pollution in my country is prominent and the society pays high attention, leading to the rapid development of the air purification industry and various technologies and products. Therefore, it is difficult to determine the purification ability of various air purification equipment when dealing with the actual atmosphere. Contents of the invention [0003] The object of the present invention is to provide a test dust generating device and method for simulating the particle size distribution characteristics of atmospheric dust, so as to solve the above-mentioned technical problems existing in the prior art. [0004] In order to achieve the above object, the technical scheme adopted in the present invention is: [0005] A test dust generating device for sim...

Claims

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Application Information

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IPC IPC(8): B01F3/06B01F3/20G01N15/08B01F23/30B01F23/70
CPCG01N15/08G01N2015/084B01F23/39B01F23/30B01F23/704B01F23/705B01F23/706B01F23/708B01F2101/23
Inventor 冯昕路宾张惠曹冠朋
Owner CHINA ACAD OF BUILDING RES
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