A hand-held particulate matter collection device
A particle collection, hand-held technology, used in measurement devices, particle suspension analysis, packaging, etc., can solve problems such as difficulty in use, large collection instruments, and inconvenience.
Active Publication Date: 2019-02-12
SUZHOU LANSCI INSTR
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Problems solved by technology
When measuring the amount of PM2.5 fine particles in the air, it is necessary to collect the PM2.5 fine particles first. One of the collection methods is to let the air pass through the particle filter membrane, and the gas molecules can freely penetrate the particle filter membrane. The PM2.5 fine particles adhere to the particle filter, and the particle filter is placed on the β-ray source, and the content of PM2.5 fine particles can be measured by measuring the penetration rate of the β-ray source. The prior art Among them, the collection of PM2.5 fine particles is usually collected by fixed meteorological points, the collection instrument is huge, very inconvenient, and difficult to use at home and in the field
Method used
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Embodiment
[0022] This embodiment provides a handheld particle collection device, such as figure 1 and figure 2 As shown, it includes the air inlet assembly 1, the horizontal section assembly 2 and the air outlet assembly 3 that are snapped together in sequence, and the air inlet assembly 1, the horizontal section assembly 2 and the air outlet assembly 3 that are snapped together in sequence can be disassembled separately for easy transportation and installation ;
[0023] The side of the horizontal section assembly 2 close to the air inlet assembly 1 is provided with a particulate matter filter membrane 4 (accommodated by the particulate matter filter membrane accommodation chamber, and the air inlet assembly 1 and the horizontal section assembly 2 can be taken out or installed after the air inlet assembly 1 is separated from the horizontal section assembly 2), The air inlet assembly 1 is composed of an air inlet and a bellows 11, and the bellows 11 can be bent and folded to adjust th...
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The invention relates to a handheld particle collection device. The handheld particle collection device comprises an air inlet assembly, a horizontal section assembly and an air outlet assembly which are sequentially connected in a clamping manner, and a particle screen arranged at an inlet of the air inlet assembly, wherein a particle filter film is arranged on the side, close to the air inlet assembly, of the horizontal section assembly; the particle screen comprises a body, and an air inlet pipe and an air outlet pipe which are positioned on the two sides of the body; the air inlet pipe and the air outlet pipe communicate with each other through a rotary cavity and a U-shaped channel; a collection chamber used for collecting large-particle dust is arranged at the bottom of the rotary cavity; a fan is arranged in the air outlet assembly; and when the fan is started, an air inlet of the air inlet assembly sucks air. According to the handheld particle collection device, the air inlet assembly, the horizontal section assembly and the air outlet assembly which are sequentially connected in a clamping manner can be separately disassembled, transportation and mounting are facilitated, the particle screen screens large particles, and PM2.5 particles pass through the particle filter film along with airflow and are adsorbed by the particle filter film.
Description
technical field [0001] The invention relates to a hand-held particle collection device, which belongs to the technical field of environmental monitoring. Background technique [0002] PM2.5 fine particulate matter refers to particulate matter in the ambient air with an aerodynamic equivalent diameter less than or equal to 2.5 microns. It can be suspended in the air for a long time, and the higher its concentration in the air, the more serious the air pollution. When measuring the amount of PM2.5 fine particles in the air, it is necessary to collect the PM2.5 fine particles first. One of the collection methods is to let the air pass through the particle filter membrane, and the gas molecules can freely penetrate the particle filter membrane. The PM2.5 fine particles adhere to the particle filter, and the particle filter is placed on the β-ray source, and the content of PM2.5 fine particles can be measured by measuring the penetration rate of the β-ray source. The prior art ...
Claims
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IPC IPC(8): B65D81/36B65D8/14B65D6/24B65D13/00G01N15/06
CPCB65D7/04B65D7/24B65D9/02B65D9/12B65D11/02B65D11/1866B65D13/00B65D15/24B65D81/361G01N15/06
Inventor 杜亚明
Owner SUZHOU LANSCI INSTR