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Aerosol sorting and generating device

A technology for generating device and aerosol, which is used in measurement device, solid separation, permeability/surface area analysis, etc., can solve the problems of complex structure of sampler and inability to obtain particle size range, etc., to ensure smooth pipeline, uniform mixing, increase The effect of stacking space

Pending Publication Date: 2022-04-01
优缇智能科技(苏州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Through the above-mentioned sampler, materials with monodisperse particle size within a certain particle size range can be collected, but the structure of the above-mentioned sampler is complicated; at the same time, in order to prevent the collected particles from forming accumulation, the above-mentioned scheme adopts a rotary structure, a rotary Although the structure can solve the problem of partial accumulation, the impact surface of the sample collection table is a plane with a hole in the middle. While the rotating structure solves the accumulation problem, part of the collected particles will be carried by the airflow through the middle hole to the next stage impactor. Causes changes in the final sampling particle size, and the desired particle size range cannot be obtained (or exceeds the desired particle size range)

Method used

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  • Aerosol sorting and generating device

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Experimental program
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Embodiment 1

[0036] Such as Figure 1-3 As shown, this embodiment discloses an aerosol sorting generating device, including a collision filter 1, which includes a housing, and the structure of the housing is not specifically limited, and in this embodiment, it includes mutual sealing threaded connections The upper shell 21 and the lower shell 22, the housing cavity 3 is formed, the structure of the cavity 3 is various, in this embodiment, the cavity 3 is cylindrical, in the An impact plate 4 is installed in the placement cavity 3. The impact plate 4 has various shapes. In this embodiment, it is preferably a cylinder or a circular plate. The edge of the impact plate 4 is in contact with the side wall of the placement cavity 3. Or the inner wall of the housing fits or fits, specifically, the edge of the impact plate 4 fits between the upper housing 21 and the lower housing 22, and is formed by the upper housing 21 and the lower housing. The body 22 is extruded and fixed; the material of the...

Embodiment 2

[0038] Such as Figure 4 As shown, this embodiment discloses an aerosol sorting generating device, which is a modification based on Embodiment 1, and the specific difference is as follows: the air outlet 7 extends toward the impact plate 4 to form a tube body 8 , the backflow groove 9 is formed between the outer wall of the pipe body 8 and the side wall of the placement cavity 3 or the inner wall of the housing, the backflow groove 9 is preferably circular, and the depth of the backflow groove 9 is between 5- 10mm.

Embodiment 3

[0040] Such as Figure 5 As shown, this embodiment discloses an aerosol sorting generating device, which is a modification based on Embodiment 1 or 2, and the specific differences are as follows: it also includes an air inlet pipe 11 and an air outlet pipe 12; multiple collision filters 1 is connected in parallel with the outlet pipe 12 through the air inlet pipe 11; the airflow inlet 7 of each collision filter 1 is respectively communicated with the air inlet pipe 11; the airflow outlet of each collision filter 1 8 communicate with the outlet pipes 11 respectively. In this implementation, the collision filter 1 can be of the same specification or of different specifications, and the different specifications mainly refer to the diameter of the airflow inlet 7 and the distance between the airflow inlet 7 and the impact plate 4 (impact groove 5) Collision filters 1 for intercepting particles with different particle sizes are realized by different methods.

[0041] Further, for...

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Abstract

According to the aerosol sorting and generating device, a collision screener is arranged to be of a shell inner cavity structure which is simple in structure, a collision plate is installed in an inner cavity, a collision groove is formed in the collision plate, by arranging the collision groove, aerosol passing through an airflow inlet collides into the collision groove, and large particles collide and remain in the collision groove; and small particles enter an airflow outlet along airflow holes in the periphery of the impact groove along with airflow and are discharged. Through the arrangement of the structure of the impact groove, the accumulation of large particles on the impact plate can be avoided, the accumulation space is increased, and the influence on the final detection result due to the discharge of too much accumulated large particles along with airflow is avoided.

Description

technical field [0001] The invention relates to the technical field of particle collection, in particular to an aerosol sorting and generating device. Background technique [0002] At present, the method commonly used in the market for the detection of material filtration efficiency is "MPPS", that is, the "most penetrable particle size method". However, most of the aerosol generators are basically polydisperse particle sizes. The particle size segment is not relatively concentrated, and from a statistical point of view, the authenticity of the response data is not very good. Therefore, how to obtain a monodisperse particle size within a certain particle size range, so as to obtain really reliable response data , is very necessary. For example, the Chinese patent document CN1695771A discloses an aerosol fine particle sampler, which is a multi-stage impactor connected sequentially by a plurality of single-stage impactors, each of which contains one or more An isolation plat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B07B15/00G01N15/08
Inventor 刘兴星
Owner 优缇智能科技(苏州)有限公司
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