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Gas sampling device

A technology of gas sampling and air inlet, applied in the direction of sampling device, etc., can solve the problem of low sampling efficiency, achieve high sampling efficiency and reduce detection error

Pending Publication Date: 2022-07-29
INST OF GEOCHEM CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The embodiment of the present invention provides a gas sampling device, which solves the technical problem of low sampling efficiency in the prior art

Method used

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  • Gas sampling device

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Embodiment Construction

[0033] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The detailed description of the following embodiments and the accompanying drawings are used to exemplify the principles of the present invention, but not to limit the scope of the present invention, that is, the present invention is not limited to the described embodiments without departing from the spirit of the present invention. Any modifications, substitutions and improvements to parts, assemblies and connections are covered under.

[0034] It should be noted that the embodiments in the present application and the features of the embodiments may be combined with each other in the case of no conflict. The present application will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

[0035] It should be clear that each embodiment in this specification is described in...

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Abstract

The invention relates to a gas sampling device which comprises a closed cavity, a filter and a collection container, a first closed cavity and a second closed cavity are arranged in the closed cavity, an air inlet, a first inlet and a first outlet are formed in the first cavity, and an air outlet is formed in the second cavity; the filter is arranged between the first chamber and the second chamber in a separating manner, and the filter can filter particulate matters and microorganisms in target gas; and the collecting container is communicated with the first chamber through the first outlet. The gas sampling device disclosed by the embodiment of the invention is high in sampling efficiency, is free from interference of external factors in a sampling process, and can reduce detection errors.

Description

technical field [0001] The invention relates to the technical field of atmospheric sampling, in particular to a gas sampling device. Background technique [0002] Atmospheric particulates are solid or liquid suspended particles in the atmosphere, also known as aerosols. According to the aerodynamic equivalent diameter and the national standard GB3095-2012, atmospheric particulate matter can be divided into TSP (aerodynamic diameter less than or equal to 100μm), PM10 (aerodynamic diameter less than or equal to 100μm), PM2.5 (aerodynamic diameter less than or equal to 100μm) 2.5 μm) and PM1 (aerodynamic diameter less than or equal to 1 μm). Atmospheric particulate matter comes from a wide range of sources, including both natural and man-made sources. These atmospheric particulates discharged to the surface will enter the respiratory tract and even the alveoli with human breathing, thereby causing harm to human health. A large number of studies have shown that in addition to...

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Application Information

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IPC IPC(8): G01N1/24
CPCG01N1/24
Inventor 张辉
Owner INST OF GEOCHEM CHINESE ACADEMY OF SCI
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