Aerosol particle matter size-based collection device and method

An aerosol particle and collection device technology, which is applied in sampling devices, analysis materials, instruments, etc., can solve the problems of high energy consumption, inability to guarantee work efficiency, and inability to popularize industrial applications in the electrostatic collection method, so as to improve the accuracy of experiments, Ensuring accuracy and saving energy

Active Publication Date: 2021-04-16
NANJING UNIV OF INFORMATION SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Among them, the filter membrane collection method, because the size of the filter membrane is at the picometer level, its price is high, it is only suitable for laboratory scientific research, and cannot be popularized in industrial applications; the electrostatic collection metho

Method used

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  • Aerosol particle matter size-based collection device and method
  • Aerosol particle matter size-based collection device and method
  • Aerosol particle matter size-based collection device and method

Examples

Experimental program
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Example Embodiment

[0039]Example 1

[0040]Such asfigure 1 As shown, an aerosol particulate material size collecting device, including,

[0041]The intake pipe 1 provided in horizontal is introduced from the intake pipe 1;

[0042]Such asfigure 2 As shown, the dryer 2 that is tilted on the plane is tubular, and the lower end of the dryer 2 is connected to the intake pipe 1, and the drying resistance wire 3, which is a dry heating resistance of the air, heating The resistance wire 3 is electrically connected to an external power source, and the heating resistor wire 3 is arranged in the drying of the dryer 2, and the particulate method of collecting the dryer 2 according to the above-described structure is: drying by shaking The device 2 is removed from the particles attached to the inner wall of the dryer 2 in the collecting vessel; further, a polyethylene film is attached to the inner wall of the dryer 2, and the side of the dryer 2 is disposed on one side of the plane is depressed. A collecting groove 4, the...

Example Embodiment

[0051]Example 2

[0052]An aerosol particulate material size collection method, the specific steps are as follows:

[0053]Step 1, the aerosol (including solid or liquid particles) is introduced into the dryer 2 from the intake pipe 1;

[0054]Step 2, first, the dryer 2 is preheated 10s, and then introduced from the bottom of the dryer 2 to be tested, the gas sol is heated by the heating resistance wire 3 to heat the moisture in the liquid particles, and the liquid particles are condensed after evaporation. The solid particles, the condensed solid particles are attached to the inner wall of the dryer 2, and the dried aerosol is discharged from the top of the dryer 2;

[0055]Step 3, in the ionization device 5 obtained after the drying process, the ionization region 9 in the ionization device 5 is ionizing the particles of the dry gas sol, so that some particles are positively charged, dry aerosol into the particle sieving region 10 After that, the electric field 13 in the particle screening reg...

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Abstract

The invention relates to the technical field of particulate matter collection, and discloses an aerosol particulate matter sub-size collection device and method, the aerosol particulate matter sub-size collection device comprises an air inlet pipe, a dryer, an ionization device, an air pump and an electrostatic field device which are connected in sequence;the ionization device comprises a box body; an ionization area for ionizing aerosol and a particle screening area for screening charged particles and uncharged particles in the aerosol are sequentially arranged in the box body, and the air pump is used for accelerating the charged particles, so that the charged particles can enter the deep part of an electrostatic field in the electrostatic field device; in the electrostatic field device, the charged particles can be distributed in the electrostatic field according to the particle mass and height through the electrostatic field, then the particles are collected through the collecting device, the particles in the air can be screened through the collecting device, and the detection efficiency of substance components of the particles in the air can be improved.

Description

technical field [0001] The invention relates to the technical field of particle collection, in particular to a particle separation device and a collection method for different sizes of aerosol particles. Background technique [0002] Aerosol particle size screening equipment is widely used in atmospheric monitoring and research. Therefore, it can be said that the particle size screening equipment for aerosol particles is an important equipment for the monitoring and research of atmospheric aerosols. Common methods for particle size screening of aerosol particles in the prior art include membrane collection method, electrostatic collection method, impact sampling separation method and the like. Among them, the filter membrane collection method, because the size of the filter membrane is at the picometer level, its price is high, it is only suitable for laboratory scientific research, and cannot be popularized in industrial applications; the electrostatic collection method co...

Claims

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Application Information

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IPC IPC(8): G01N1/22G01N1/44G01N15/00
Inventor 张佳严丁宇刘佳李杰李佩儒陆天枢李雨微杨淋玉赵兴强李玲玉
Owner NANJING UNIV OF INFORMATION SCI & TECH
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