CN205353029U - Gaseous concentration enrichment detection device - Google Patents
Gaseous concentration enrichment detection device Download PDFInfo
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- CN205353029U CN205353029U CN201521031068.2U CN201521031068U CN205353029U CN 205353029 U CN205353029 U CN 205353029U CN 201521031068 U CN201521031068 U CN 201521031068U CN 205353029 U CN205353029 U CN 205353029U
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- enrichment
- adsorption tube
- way valve
- liquid nitrogen
- sample
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Abstract
The utility model discloses a gaseous concentration enrichment detection device, include injector, admission valve, valve bracket board, adsorption tube, enrichment microballon, liquid nitrogen cup, quantitative ring, six -way valve, trachea, chromatograph, advance a kind interface, sample connection, the valve bracket board is fixed on chromatograph side plate, the valve bracket panel mounting has six -way valve, admission valve and sample connection, the injector below is equipped with the liquid nitrogen cup, is equipped with the adsorption tube in the liquid nitrogen cup, is equipped with the enrichment microballon in the adsorption tube, sample connection and gaseous sample intercommunication, the break -make of admission valve control sampling mouth, six -way valve top and hookup have quantitative ring sum adsorption tube, be provided with into kind interface on the chromatograph side plate, advance kind interface respectively with the six -way valve intercommunication, this novel adoption microsphere adsorption tube is through the liquid nitrogen cooling, with gaseous sample concentration and enrichment, and then carry out the pyrolysis to the measured object in the adsorption tube and leave, release the pest that has of enrichment to carry chromatograph mesoanlysis and test.
Description
Technical field
This utility model relates to a kind of gas concentration technical equipment field, particularly to a kind of gas concentration enrichment detecting device.
Background technology
Development and the raising of quality of life along with economic society, people increasingly pay close attention to for air quality, especially in recent years China's atmospheric environment worsens, and severe haze how occurs, and PM2.5 particulate matter in air and organic pollution have badly influenced the orthobiosis of people.Owing to air combined pollution problem is on the rise, there is the regional atmosphere pollution of serious harm.
In prior art, environmental science and biomedical sector, usually need the trace nuisance in gas source or gas Organic substance are carried out chromatography, but, when micro-content organism in gas directly detects analysis, chromatographic sensitivity and detection limitation cannot directly be tested, it is necessary to the gas concentration enriching apparatus of a kind of with low cost, convenient operating maintenance, compact conformation, realized analysis and the detection of micro-content organism or microscale harmful substance in gaseous sample by enrichment method device.
Utility model content
For solving above-mentioned technical problem, this utility model provides a kind of gas concentration enrichment detecting device, for deficiency of the prior art, to the gaseous sample containing micro quantity organic pollutant, adopt the adsorption tube being filled with polymer microsphere, and by liquid nitrogen, adsorption tube is cooled down, gaseous sample is led to wherein, is undertaken concentrating and being enriched with by the organic pollution in gaseous sample by adsorbing and condensing；And then the measured object in adsorption tube is carried out thermal dissociation, discharge the nuisance of enrichment, and be transported in chromatograph to be analyzed and test.
For reaching above-mentioned purpose, the technical solution of the utility model is as follows: a kind of gas concentration enrichment detecting device, including injector, intake valve, vavle shelf plate, cover plate, adsorption tube, enrichment microsphere, liquid nitrogen cup, quantitative loop, screw nut, six-way valve, trachea, chromatograph, sample introduction interface, sample tap, fixed screw, it is characterised in that:
Described injector includes vavle shelf plate, cover plate, six-way valve, intake valve, sample tap；Described vavle shelf plate is fixed on chromatograph side box plate by fixed screw, and described cover plate is L-type, is fixed on above injector by fixed screw, and described vavle shelf plate is equipped with six-way valve, intake valve and sample tap；Operating board is provided with below described injector liquid nitrogen cup, in described liquid nitrogen cup, is provided with adsorption tube, in described adsorption tube, be filled with enrichment microsphere, be added with liquid nitrogen in described liquid nitrogen cup to adsorption tube sub-cooled；Described sample tap is connected with gaseous sample by pipeline, and described intake valve is assemblied between sample tap and six-way valve, for controlling the break-make of sample tap；Described six-way valve is connected above quantitative loop, and described chromatograph side box plate is provided with sample introduction interface, and described sample introduction interface connects by nut nut is fixing with described six-way valve respectively；Described adsorption tube is parallel on six-way valve by check valve by the pipeline of pipeline, nut nut and quantity tube.
Described intake valve is provided with two, and described sample tap is provided with two.
Described quantitative loop is provided with plurality of specifications, and the range of capacity of described quantitative loop is 3 milliliters 10 milliliters.
Preferably, described enrichment microsphere is polymer microsphere.
Operation principle of the present utility model is: the detection of gaseous sample includes enrichment method step, release steps of dissociating, detection by quantitative step；Described enrichment method step is, gaseous sample connects sample tap, is controlled by intake valve and six-way valve, gaseous sample imports the enrichment microsphere in adsorption tube, and under the liquid nitrogen cooling in liquid nitrogen cup, cryogenic conditions makes organic pollution be enriched with microsphere absorption；Described release steps of dissociating is, liquid nitrogen is replaced by hot water, under hot water heating environment, organic pollution on enrichment microsphere dissociates after being heated release in adsorption tube, close intake valve, regulate six-way valve, connect quantitative loop, make the organic pollution being released enter in quantitative loop, close check valve；Described detection by quantitative step is be transported in chromatograph by the Gaseous Organic Pollutant in quantitative loop by sample introduction interface by six-way valve, by chromatograph, the gaseous sample of enrichment is analyzed detection the content being converted in original gas sample organic pollution.
Pass through technique scheme, technical solutions of the utility model provide the benefit that: to the gaseous sample containing micro quantity organic pollutant, adopt the adsorption tube being filled with polymer microsphere, and by liquid nitrogen, adsorption tube is cooled down, gaseous sample is led to wherein, is undertaken concentrating and being enriched with by the organic pollution in gaseous sample by adsorbing and condensing；And then the measured object in adsorption tube is carried out thermal dissociation, discharge the nuisance of enrichment, and be transported in chromatograph to be analyzed and test.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is a kind of gas concentration enrichment detecting device schematic diagram disclosed in this utility model embodiment.
Numeral and the corresponding component title represented by letter in figure:
1. injector 2. intake valve 3. vavle shelf plate 4. cover plate
5. adsorption tube 6. is enriched with microsphere 7. liquid nitrogen cup 8. quantitative loop
9. nut nut 10. six-way valve 11. trachea 12. chromatograph
13. sample introduction interface 14. sample tap 15. fixed screw
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model, rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of this utility model protection.
According to Fig. 1, this utility model provides a kind of gas concentration enrichment detecting device, including injector 1, intake valve 2, vavle shelf plate 3, cover plate 4, adsorption tube 5, enrichment microsphere 6, liquid nitrogen cup 7, quantitative loop 8, screw nut 9, six-way valve 10, trachea 11, chromatograph 12, sample introduction interface 13, sample tap 14, fixed screw 15.
Described injector 1 includes vavle shelf plate 3, cover plate 4, six-way valve 10, intake valve 2, sample tap 14；Described vavle shelf plate 3 is fixed on chromatograph 12 side box plate by fixed screw 15, and described cover plate 4 is L-type, is fixed on above injector 1 by fixed screw 15, and described vavle shelf plate 3 is equipped with six-way valve 10, intake valve 2 and sample tap 14；Operating board is provided with below described injector 1 liquid nitrogen cup 7, in described liquid nitrogen cup 7, is provided with adsorption tube 5, be filled with enrichment microsphere 6 in described adsorption tube 5, be added with liquid nitrogen in described liquid nitrogen cup 7 to adsorption tube 5 sub-cooled；Described sample tap 14 is connected with gaseous sample by pipeline, and described intake valve 2 is assemblied between sample tap 14 and six-way valve 10, for controlling the break-make of sample tap 14；Described six-way valve 10 is connected above quantitative loop 8, and described chromatograph 12 side box plate is provided with sample introduction interface 13, and described sample introduction interface 13 connects by nut nut 9 is fixing with described six-way valve 10 respectively；Described adsorption tube is parallel on six-way valve 10 by check valve by the pipeline of pipeline, nut nut 9 and quantity tube 8.
Described intake valve 2 is provided with two, and described sample tap 14 is provided with two.
The capacity of described quantitative loop 8 is 5 milliliters；Described enrichment microsphere 6 is polymer microsphere.
This utility model concrete operation step is: the detection of gaseous sample includes enrichment method step, release steps of dissociating, detection by quantitative step；Described enrichment method step is, gaseous sample connects sample tap 14, is controlled by intake valve 2 and six-way valve 10, gaseous sample imports the enrichment microsphere 6 in adsorption tube 5, under liquid nitrogen cooling in liquid nitrogen cup 7, cryogenic conditions makes organic pollution be enriched with microsphere 6 to adsorb；Described release steps of dissociating is, liquid nitrogen is replaced by hot water, under hot water heating environment, in adsorption tube 5, the organic pollution on enrichment microsphere 6 dissociates after being heated release, close intake valve 2, regulate six-way valve 10, connect quantitative loop 8, make the organic pollution being released enter in quantitative loop 8, close check valve；Described detection by quantitative step is, by six-way valve 10, the Gaseous Organic Pollutant in quantitative loop 8 is transported in chromatograph 12 by sample introduction interface 13, by chromatograph 12, the gaseous sample of enrichment is analyzed detection the content being converted in original gas sample organic pollution.
By above-mentioned specific embodiment, the beneficial effects of the utility model are: to the gaseous sample containing micro quantity organic pollutant, adopt the adsorption tube being filled with polymer microsphere, and by liquid nitrogen, adsorption tube is cooled down, gaseous sample is led to wherein, is undertaken concentrating and being enriched with by the organic pollution in gaseous sample by adsorbing and condensing；And then the measured object in adsorption tube is carried out thermal dissociation, discharge the nuisance of enrichment, and be transported in chromatograph to be analyzed and test.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses this utility model.The multiple amendment of these embodiments be will be apparent from for those skilled in the art, and generic principles defined herein when without departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, this utility model is not intended to be limited to the embodiments shown herein, and is to fit to the widest scope consistent with principles disclosed herein and features of novelty.
Claims (4)
1. a gas concentration enrichment detecting device, it is characterized in that, including including injector, intake valve, vavle shelf plate, cover plate, adsorption tube, enrichment microsphere, liquid nitrogen cup, quantitative loop, screw nut, six-way valve, trachea, chromatograph, sample introduction interface, sample tap, fixed screw；Described injector includes vavle shelf plate, cover plate, six-way valve, intake valve, sample tap；Described vavle shelf plate is fixed on chromatograph side box plate by fixed screw, and described cover plate is L-type, is fixed on above injector by fixed screw, and described vavle shelf plate is equipped with six-way valve, intake valve and sample tap；Operating board is provided with below described injector liquid nitrogen cup, in described liquid nitrogen cup, is provided with adsorption tube, in described adsorption tube, be filled with enrichment microsphere, be added with liquid nitrogen in described liquid nitrogen cup to adsorption tube sub-cooled；Described sample tap is connected with gaseous sample by pipeline, and described intake valve is assemblied between sample tap and six-way valve, for controlling the break-make of sample tap；Described six-way valve is connected above quantitative loop, and described chromatograph side box plate is provided with sample introduction interface, and described sample introduction interface connects by nut nut is fixing with described six-way valve respectively；Described adsorption tube is parallel on six-way valve by check valve by the pipeline of pipeline, nut nut and quantity tube.
2. a kind of gas concentration enrichment detecting device according to claim 1, it is characterised in that described intake valve is provided with two, and described sample tap is provided with two.
3. a kind of gas concentration enrichment detecting device according to claim 1, it is characterised in that described quantitative loop is provided with plurality of specifications, and the range of capacity of described quantitative loop is 3 milliliters 10 milliliters.
4. a kind of gas concentration enrichment detecting device according to claim 1, it is characterised in that preferred, described enrichment microsphere is polymer microsphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521031068.2U CN205353029U (en) | 2015-12-11 | 2015-12-11 | Gaseous concentration enrichment detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521031068.2U CN205353029U (en) | 2015-12-11 | 2015-12-11 | Gaseous concentration enrichment detection device |
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| Publication Number | Publication Date |
|---|---|
| CN205353029U true CN205353029U (en) | 2016-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201521031068.2U Expired - Fee Related CN205353029U (en) | 2015-12-11 | 2015-12-11 | Gaseous concentration enrichment detection device |
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| CN (1) | CN205353029U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110361466A (en) * | 2019-06-28 | 2019-10-22 | 南京霍普斯科技有限公司 | Volatile organic contaminant on-line monitoring system and monitoring method in surrounding air |
| CN111855583A (en) * | 2020-07-17 | 2020-10-30 | 中国科学院电工研究所 | A photoacoustic spectrum detection device for detecting the decomposition gas of sulfur hexafluoride in electrical equipment |
-
2015
- 2015-12-11 CN CN201521031068.2U patent/CN205353029U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110361466A (en) * | 2019-06-28 | 2019-10-22 | 南京霍普斯科技有限公司 | Volatile organic contaminant on-line monitoring system and monitoring method in surrounding air |
| CN111855583A (en) * | 2020-07-17 | 2020-10-30 | 中国科学院电工研究所 | A photoacoustic spectrum detection device for detecting the decomposition gas of sulfur hexafluoride in electrical equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160629 Termination date: 20191211 |