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Inertial filter film and particle classification sampling device thereof

A filter membrane and inertial technology, applied in the field of inertial filter membrane and its particle classification sampling device, can solve the problems that it is difficult to accurately detect air quality or pollution index, and it is difficult to collect particulate matter, so as to facilitate the collection of particulate matter and flexible use , the effect of uniform airflow

Inactive Publication Date: 2012-10-24
DONGGUAN UNIV OF TECH +1
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Problems solved by technology

[0004] However, in actual use, it is found that there are still many deficiencies in the hierarchical impactor of the prior art. For example, it is difficult to collect finer particles by using the impact collection group in the traditional technology, which makes it difficult to accurately detect air pollution. quality or pollution index

Method used

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  • Inertial filter film and particle classification sampling device thereof
  • Inertial filter film and particle classification sampling device thereof
  • Inertial filter film and particle classification sampling device thereof

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Embodiment Construction

[0049] Please refer to Figure 1 to Figure 8 As shown, it shows the specific structure of the preferred embodiment of the present invention, the inertial filter membrane 11 includes a barrier plate 112, the center of the barrier plate 112 is provided with a diversion hole 1121, and several A layer of metal mesh 111, the several layers of metal mesh 111 are stacked up and down together (such as figure 2 and Figure 8 As shown), the pores 114 on two adjacent layers of metal mesh 111 are staggered, and a gap is formed between two adjacent layers of metal mesh 111 .

[0050] like Figure 1 to Figure 4 As shown, the distribution positions of the guide holes 1121 on the aforementioned blocking plate 112 can be various, for example, as figure 1 and figure 2 As shown, there is one guide hole, which is located at the center of the blocking plate 112; as image 3 and Figure 4 As shown, there are a plurality of diversion holes, and a diversion hole 1121 is opened at the center o...

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Abstract

The invention discloses an inertial filter film and a particle classification sampling device thereof. The particle grading sampling device comprises a coarse particle classificator and the inertial filter film; the coarse particle classificator comprises a housing and a sampling channel arranged in the housing, two ends of the sampling channel are provided with a gas inlet and a gas outlet respectively, and multi-stage coarse particle collision acquisition groups are sequentially arranged along the gas flow direction of the sampling channel; and the inertial filter film is arranged under the gas outlet of the coarse particle classificator and comprises barrier plates, each of the barrier plates is provided with flow guide apertures, several metal nets which are up-down superposed together are filled in the flow guide apertures on the barrier plates, meshes on each two adjacent metal nets are staggeredly arranged, and there is a gap between each two adjacent metal nets. Sampling of fine particles in the gas is well realized through the particle classification sampling device to accurately detect and analyze the particles in the gas, so the detection precision and the sampling quality are effectively improved.

Description

technical field [0001] The invention relates to the field technology of equipment for sampling microorganisms or particles in the atmosphere, in particular to an inertial filter membrane and a particle fractional sampling device thereof. Background technique [0002] With the development of industry, the level of particulate pollutants in the atmosphere is increasing. These particulate pollutants will absorb various harmful substances in the air that can damage the nervous system and cause cancer, and bring many negative effects to the environment and human health. How to classify and calibrate the particle size of the particulate matter in the atmosphere is the primary problem in the research and solution of atmospheric particulate matter pollution. [0003] People use the particle sampling system to obtain the corresponding level of particulate matter in the air, so as to effectively detect and analyze the air quality or pollution index. Usually, an impactor sampler is us...

Claims

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Application Information

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IPC IPC(8): B01D39/14B01D46/54B01D50/00G01N1/24
Inventor 白云鹤段广亮范洪波
Owner DONGGUAN UNIV OF TECH
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