Atmospheric particulate sampling device

Abstract

The invention discloses an atmospheric particulate sampling device which comprises a shell and a sampling head installed on the shell, wherein a sampling pump is installed in the shell, the sampling pump works to drive air flow to flow through the sampling head, a feeding storage device and a discharging storage device can be assembled at the two ends of a conveying table, a certain quantity of membrane mechanisms are stored in the feeding storage device in advance, the membrane mechanisms can be automatically fed to a conveying table through cooperation with the work of a first transmission mechanism, the membrane mechanisms can be driven to automatically move to connecting pipes for sampling work or automatically move out of the connecting pipes to achieve replacement work of the membrane mechanisms through the action of the conveying table, each membrane mechanism is provided with a shielding piece, and in cooperation with the work of a second transmission mechanism, the shielding piece can be automatically opened to change to a working state when moving to the connecting pipe, and can be automatically closed when moving out of the connecting pipe, so that the sampled filter membrane is in a closed independent space, the later treatment is facilitated, and the use is more convenient and reliable.

Description

technical field [0001] The invention relates to the technical field of atmospheric detection, in particular to an atmospheric particle sampling device. Background technique [0002] The atmospheric particle sampler can realize continuous automatic sampling of suspended particulate matter (including TSP, PM10, PM2.5, etc.) in the atmosphere. The collected suspended particulate matter samples are collected on the filter membrane for analysis by various means, thereby Obtain the suspended particulate matter concentration and various chemical composition information contained in the suspended particulate matter. [0003] The traditional atmospheric particle sampling device draws the air samples in the environment through the air pump and passes through the sampler inlet and the cutter in turn until the required particles are filtered and intercepted. After the sampling is completed, the filter membrane needs to be replaced manually to carry out the next sampling work. In additi...

AI Technical Summary

Problems solved by technology

[0003] The traditional atmospheric particle sampling device draws the air samples in the environment through the air pump and passes through the sampler inlet and the cutter in turn until the required particles are filtered and intercepted. After the sampling is completed, the filter membrane needs to be replaced manually to carry out the next sampling work. In addition, the sampler needs to be disassembled during replacement, which is time-consuming and laborious. When replacing the filter membrane outdoors, no matter whether the new filter membrane or the sampled filter membrane is exposed to the outside, it is easy to be damaged and polluted, which will affect the sampling effect. Atmospheric particle sampling device to solve the above problems

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