A Passive Pollution Flux Sampler
A sampler, passive technology, applied in the direction of sampling devices, etc., can solve the problems affecting the detection results
Active Publication Date: 2018-03-06
SHENZHEN INST OF BUILDING RES
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Problems solved by technology
This kind of sampler can avoid removing a piece of the material of the object to be tested and send it to the laboratory for testing, avoiding destructiveness. However, this kind of sampler is fixed on the surface of the material by glue for sampling. Although the operation is simple and light, but The boundary inside the adhesive is connected to the sampling cavity, that is, the pollutants emitted by the adhesive will also be collected by the adsorbent, thus affecting the detection results
Method used
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[0029] The core of the invention is to provide a passive pollution flux sampler to improve the accuracy of detection results.
[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0031] Such as Figure 1-Figure 5 As shown, the present invention discloses a passive pollution flux sampler, which includes a sampling cup 1 , a weight 3 , a connecting rod 4 and a dual-purpose friction seat 6 . Wherein, the sampling cup 1 is provided with a formaldehyde sampling core 7 and a VOC sampling core 8, so as to detect for...
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The invention discloses a passive pollution flux sampler, which comprises a sampling cup, a weight, a connecting rod and a dual-purpose friction seat. The sampling cup is equipped with a formaldehyde sampling core and a VOC sampling core to facilitate the detection of formaldehyde and VOC pollutants in the object to be tested. The mouth of the sampling cup is equipped with a special-shaped sealing rubber ring for pressing against the surface of the object to be detected. Sealing; the outer side of the bottom of the sampling cup is equipped with a clamping groove; one edge of the weight can be clamped with the above-mentioned clamping groove limit, and the other end of the connecting rod connected with the weight can extend into the dual-purpose friction seat In the limiting groove of the limiting groove, the side wall of the limiting groove is clamped to make the weight fall to the side of the sampling cup and apply a positive pressure to the sampling cup, thereby realizing the installation and fixing of the sampling cup. The problem of self-pollution of the adhesive caused by fixing the sampling cup by the adhesive method in the prior art is solved, and the detection accuracy is improved.
Description
technical field [0001] The invention relates to the technical field of environmental detection, in particular to a passive pollution flux sampler. Background technique [0002] VOC is the English abbreviation of volatile organic compounds, mainly including: benzene, toluene, xylene, ethylbenzene, styrene and so on. Since building materials, decoration materials, furniture and home appliances use a large amount of materials containing VOC and formaldehyde during production, these compounds will be gradually released during subsequent use and pollute the indoor air environment. People who live, work, or study in an environment where VOC or formaldehyde exceeds the standard often experience symptoms such as eye pain, sore throat, headache, fatigue, and restlessness, which are collectively referred to as "sick building syndrome". organ damage or leukemia. [0003] In 2001, my country promulgated the "Code for Indoor Environmental Pollution Control of Civil Construction Enginee...
Claims
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IPC IPC(8): G01N1/22
Inventor 高峣罗刚
Owner SHENZHEN INST OF BUILDING RES