CN207623092U - A kind of drying device for VOC samplings - Google Patents
A kind of drying device for VOC samplings Download PDFInfo
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- CN207623092U CN207623092U CN201721718728.3U CN201721718728U CN207623092U CN 207623092 U CN207623092 U CN 207623092U CN 201721718728 U CN201721718728 U CN 201721718728U CN 207623092 U CN207623092 U CN 207623092U
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- voc
- glass tube
- drying device
- air inlet
- gas outlet
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Abstract
The utility model is related to the technical fields of detection, more particularly, to a kind of drying device for VOC samplings.A kind of drying device for VOC samplings, wherein air inlet including glass tube, set on glass tube one end is equipped with helical duct in the gas outlet of the glass tube other end, the glass tube, desiccant-filled in helical duct；It is additionally provided with sealing cover at the air inlet, gas outlet.By the drying to VOC sample gas, the adsorption effect of Tenax TA is improved, ensures the accuracy of test；Protect analytical instrument.
Description
Technical field
The utility model is related to the technical fields of detection, more particularly, to a kind of drying device for VOC samplings.
Background technology
With the continuous improvement of people's living standards, automobile uses a large amount of universal, car inside volatile organic matter
（VOC）The extensive concern of people, therefore, the detection and analysis ten to interior VOC are also increasingly caused to the harm of health
Divide necessity.Currently, the conventional method of test car inside VOC is mainly by sample as in test bag or environmental chamber, specific temperature
It after so that sample is distributed VOC under degree, is adsorbed with Tenax TA, reusable heat parsing gaseous mass analyzer is detected.With Tenax TA
It is that the VOC gas come out are not dried substantially using directly sampling when the VOC that adsorption sample distributes.Experiment shows centainly
The moisture of amount can influence its adsorption effect to VOC after entering Tenax TA adsorption tubes, to directly affect accuracy in detection and
Stability；In addition, a certain amount of moisture enters pyrolysis analyzer analysis system by Thermal desorption, it be easy to cause pyrolysis analyzer cold-trap gas
Road blocks, and then leads to instrument failure, and the sample of acquisition cancels.
Invention content
The utility model is at least one defect overcome described in the above-mentioned prior art, provide it is a kind of for VOC sampling
Drying device solves the influence that steam samples VOC, protects analytical instrument, improves accuracy and the stability of interpretation of result.
The technical solution of the utility model is：A kind of drying device for VOC samplings, wherein including glass tube, be set to
The air inlet of glass tube one end is equipped with helical duct in the gas outlet of the glass tube other end, the glass tube, and spiral is logical
It is desiccant-filled in road；It is additionally provided with sealing cover at the air inlet, gas outlet.
The design is by proposing a kind of drying device for VOC samplings, for Tenax TA pipes in acquisition VOC sample mistakes
The moisture wherein contained is dried in journey, reduces the influence that moisture measures VOC.
The drier of certain mass is filled in the helical duct of glass tube, is preserved after two end cap top cover labyrinth.It uses
When, sealing cover is opened, air inlet and thief hatch, the Tenax TA pipes of gas outlet connection sampling are connected with silicone tube；VOC is from air inlet
Mouth enters the helical duct in device, and moisture is adsorbed by drier in helical duct, and the gas after drying enters from gas outlet to be adopted
The Tenax TA pipes of sample.
Further, the sealing cover is adapted with the shape of air inlet, gas outlet.
Compared with prior art, advantageous effect is：By the drying to VOC sample gas, the absorption of Tenax TA is improved
Effect ensures the accuracy of test；Protect analytical instrument.
Description of the drawings
Fig. 1 is the utility model overall structure diagram.
Specific implementation mode
The attached figures are only used for illustrative purposes and cannot be understood as limitating the patent；It is attached in order to more preferably illustrate the present embodiment
Scheme certain components to have omission, zoom in or out, does not represent the size of actual product；To those skilled in the art,
The omitting of some known structures and their instructions in the attached drawings are understandable.Being given for example only property of position relationship described in attached drawing
Illustrate, should not be understood as the limitation to this patent.
As shown in Figure 1, a kind of drying device for VOC samplings, wherein including glass tube 1, be set to 1 one end of glass tube
Air inlet 12, set on the gas outlet 13 of 1 other end of glass tube, helical duct 11 is equipped in glass tube 1, is filled out in helical duct 11
Fill drier；It is additionally provided with sealing cover 14 at air inlet 12, gas outlet 13.Sealing cover 14 and air inlet 12, the shape of gas outlet 13
It is adapted.
In the present embodiment, the drier of certain mass is filled in the helical duct 11 of glass tube 1, is sealed in two end cap
It is preserved after lid.In use, opening sealing cover 14, air inlet 12 and thief hatch are connected with silicone tube, the connection sampling of gas outlet 13
Tenax TA pipes；VOC enters the helical duct in device from air inlet 12, and moisture is adsorbed by drier in helical duct, dry
Gas afterwards enters the Tenax TA pipes of sampling from gas outlet 13.
The drying device of this tool helical duct, raising Tenax TA pipes are easy to carry to gas absorption effect.
Obviously, above-described embodiment of the utility model is only intended to clearly illustrate the utility model example, and
It is not the restriction to the embodiment of the utility model.For those of ordinary skill in the art, in above description
On the basis of can also make other variations or changes in different ways.There is no need and unable to give all embodiments
It is exhaustive.All any modification, equivalent and improvement made within the spirit and principle of the present invention etc., should be included in
Within the protection domain of the utility model claims.
Claims (2)
1. a kind of drying device for VOC samplings, which is characterized in that including glass tube（1）, be set to glass tube（1）One end
Air inlet（12）, be set to glass tube（1）The gas outlet of the other end（13）, the glass tube（1）It is interior to be equipped with helical duct（11）,
Helical duct（11）In it is desiccant-filled；The air inlet（12）, gas outlet（13）Place is additionally provided with sealing cover（14）.
2. a kind of drying device for VOC samplings according to claim 1, it is characterised in that：The sealing cover
（14）With air inlet（12）, gas outlet（13）Shape be adapted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721718728.3U CN207623092U (en) | 2017-12-12 | 2017-12-12 | A kind of drying device for VOC samplings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721718728.3U CN207623092U (en) | 2017-12-12 | 2017-12-12 | A kind of drying device for VOC samplings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207623092U true CN207623092U (en) | 2018-07-17 |
Family
ID=62823170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721718728.3U Active CN207623092U (en) | 2017-12-12 | 2017-12-12 | A kind of drying device for VOC samplings |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207623092U (en) |
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2017
- 2017-12-12 CN CN201721718728.3U patent/CN207623092U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 511400 150, No. 8, Qishan Road, Shiqi Town, Panyu District, Guangzhou City, Guangdong Province Patentee after: Radio and TV Measurement and Testing Group Co.,Ltd. Patentee after: GUANGZHOU GRG METROLOGY & TEST (SHANGHAI) CO.,LTD. Address before: 510656 Guangdong city of Guangzhou province Whampoa Avenue Tianhe District Xiping Yun Road No. 163 Patentee before: GUANGZHOU GRG METROLOGY & TEST Co.,Ltd. Patentee before: GUANGZHOU GRG METROLOGY & TEST (SHANGHAI) CO.,LTD. |