CN202305283U - Gas sampling bag with non-return valves - Google Patents
Gas sampling bag with non-return valves Download PDFInfo
- Publication number
- CN202305283U CN202305283U CN2011203933680U CN201120393368U CN202305283U CN 202305283 U CN202305283 U CN 202305283U CN 2011203933680 U CN2011203933680 U CN 2011203933680U CN 201120393368 U CN201120393368 U CN 201120393368U CN 202305283 U CN202305283 U CN 202305283U
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- CN
- China
- Prior art keywords
- gas
- retaining valve
- valve
- bag
- return valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model belongs to the field of gas sampling and analyzing devices, and relates to a gas sampling bag with non-return valves. The gas sampling bag comprises a sealed gas bag and a gas valve, wherein the gas valve consists of a first non-return valve and a second non-return valve; the first non-return valve is connected with the sealed gas bag through an intake interface; the second non-return valve is connected with the sealed gas bag through an exhaust interface; the first non-return valve only allows gas to flow inwards from the intake interface; the second non-return valve only allows gas to flow outwards from the exhaust interface; and a hang hole is formed at any of four corners of the sealed gas bag. The utility model fundamentally solves the problem of difficulty in gas replacement during sampling, can effectively prevent samples from pollution in the analysis process, lowers the use cost, is more convenient to use and suitable for popularized application, and conforms to the requirements for social development.
Description
Technical field
The utility model belongs to gas sampling and analytical equipment, is specifically related to a kind of retaining valve gas sampling bag.
Background technology
At present, the gas sampling bag is widely used in the collection and the preservation of gaseous sample in petrochemical complex, the gas analysis work of environmental scientific research field.And; Along with progressively going deep into of energy-saving and emission-reduction strategy; The importance that the component of all gases detects day by day highlights: various combustion gas components and calorific value are data indispensable in the energy-conservation audit; Micro-oxygen content directly influences product quality in the various nitrogen hydrogen protection gas, the calorific value analysis of mixed gas, the detection of trace amount of foreign gas etc. in the silicon steel ammonia.Some microcomponent is analyzed as micro amount of oxygen and trace nitrogen detect and gas sampling required very high, because the content of nitrogen and oxygen is all very high in the air, will influence very big to the result so some air are advanced in leakage.Gas sampling is the most important thing in the gas analysis, and the quality of gas sampling bag directly has influence on the accuracy that gas adopts.
Yet find that in actual detected there is the defective in the design in used sampler bag, gas displacement difficulty when promptly sampling, and also gaseous sample is also polluted in analytic process easily.
The utility model content
The purpose of the utility model is just to the weak point of above-mentioned prior art, and provide a kind of simple in structure, easy to operate, gas displacement easily and sample be difficult for contaminated retaining valve gas sampling bag.
The purpose of the utility model realizes through following technical scheme:
A kind of retaining valve gas sampling bag comprises sealed air pocket and air valve, and said air valve is first retaining valve and second retaining valve.
Said first retaining valve is connected with sealed air pocket through intake interface, and second retaining valve is connected with sealed air pocket through exhaust port.
Said first retaining valve is provided with for only allowing gas inwardly to be flowed by intake interface, and second retaining valve is provided with for only allowing gas outwards to be flowed by exhaust port.
Optional one jiao is provided with hanging hole at four angles of sealed air pocket.
The beneficial effect of the utility model is:
1, on the structure, adopts two retaining valve one-in-and-one-out designs, gas displacement during convenient the sampling.
2, on the structure, retaining valve is set, can avoids gas analysis process sampler bag to leak into some air, and cause sample contamination at exhausr port.
3, on the structure, optional one jiao is provided with hanging hole at four angles of sealed air pocket, hangs when being convenient to sample, and uses more convenient.
4, on the structure, retaining valve separates setting with sealed air pocket, and retaining valve can recycle, and has reduced use cost, helps product promotion and uses, and meets the social development demand.
Accompanying drawing and explanation
Below in conjunction with accompanying drawing the embodiment of the utility model is done further detailed explanation, wherein:
Fig. 1 is the structural representation after the sampling of the utility model retaining valve gas sampling bag;
Fig. 2 is the plan structure synoptic diagram after the sampling of the utility model retaining valve gas sampling bag;
Sequence number among the figure: 1, sealed air pocket, 2, first retaining valve, 3, second retaining valve, 4, intake interface, 5, exhaust port, 6, hanging hole.
Embodiment
Referring to Fig. 1 and Fig. 2, among the figure, the retaining valve gas sampling bag of the utility model comprises sealed air pocket 1 and air valve, and said air valve is first retaining valve 2 and second retaining valve 3; Said first retaining valve 2 is connected with sealed air pocket 1 through intake interface 4, and second retaining valve 3 is connected with sealed air pocket 1 through exhaust port 5; Said first retaining valve 2 is provided with for only allowing gas inwardly to be flowed by intake interface 4, and second retaining valve 3 is provided with for only allowing gas outwards to be flowed by exhaust port 5; Optional one jiao is provided with hanging hole 6 at 1 four angles of sealed air pocket.
The utility model use is following:
In the starting stage of sampling process, at first open first retaining valve 2, the sample gas of wanting get into sealed air pocket 1 from intake interface 4, open second retaining valve 3 then, gas is discharged through exhaust port 5 in the sealed air pocket 1, carries out the sample gas displacement; In the end stage of sampling process, close second retaining valve 3 earlier, close first retaining valve 2 again, accomplish sampling.When doing gas analysis work in the laboratory, only need operation second retaining valve 3, avoided maloperation to cause the entering of air that sample is polluted.
The above is merely the schematic embodiment of the utility model; Be not in order to limit the scope of the utility model; Equivalent variations and modification that any those skilled in the art is made under the prerequisite that does not break away from the utility model design and principle all should belong to the scope that the utility model is protected.
Claims (4)
1. a retaining valve gas sampling bag comprises sealed air pocket and air valve, it is characterized in that: said air valve is first retaining valve and second retaining valve.
2. retaining valve gas sampling bag according to claim 1 is characterized in that: said first retaining valve is connected with sealed air pocket through intake interface, and second retaining valve is connected with sealed air pocket through exhaust port.
3. retaining valve gas sampling bag according to claim 2 is characterized in that: said first retaining valve is provided with for only allowing gas inwardly to be flowed by intake interface, and second retaining valve is provided with for only allowing gas outwards to be flowed by exhaust port.
4. according to claim 1 or 2 or 3 described retaining valve gas sampling bags, it is characterized in that: optional one jiao is provided with hanging hole at four angles of sealed air pocket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203933680U CN202305283U (en) | 2011-10-17 | 2011-10-17 | Gas sampling bag with non-return valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203933680U CN202305283U (en) | 2011-10-17 | 2011-10-17 | Gas sampling bag with non-return valves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202305283U true CN202305283U (en) | 2012-07-04 |
Family
ID=46374155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203933680U Expired - Fee Related CN202305283U (en) | 2011-10-17 | 2011-10-17 | Gas sampling bag with non-return valves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202305283U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103759986A (en) * | 2014-01-06 | 2014-04-30 | 青岛恒远科技发展有限公司 | Air bag sampler for vacuum box |
| CN105067389A (en) * | 2015-08-13 | 2015-11-18 | 中国石油化工股份有限公司 | Airtight sampling bottle for gas |
| CN106501138A (en) * | 2015-09-06 | 2017-03-15 | 广州禾信分析仪器有限公司 | PM in expiratory air2.5Detection method and sample devices |
| CN109139440A (en) * | 2018-08-22 | 2019-01-04 | 国网山东省电力公司电力科学研究院 | A kind of charging-self type gas producing device |
| CN112525591A (en) * | 2020-11-23 | 2021-03-19 | 佛山市高明区科企生产力促进中心 | Gas sampling device and rock stratum sample and gas sample corresponding method |
-
2011
- 2011-10-17 CN CN2011203933680U patent/CN202305283U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103759986A (en) * | 2014-01-06 | 2014-04-30 | 青岛恒远科技发展有限公司 | Air bag sampler for vacuum box |
| CN105067389A (en) * | 2015-08-13 | 2015-11-18 | 中国石油化工股份有限公司 | Airtight sampling bottle for gas |
| CN106501138A (en) * | 2015-09-06 | 2017-03-15 | 广州禾信分析仪器有限公司 | PM in expiratory air2.5Detection method and sample devices |
| CN109139440A (en) * | 2018-08-22 | 2019-01-04 | 国网山东省电力公司电力科学研究院 | A kind of charging-self type gas producing device |
| CN109139440B (en) * | 2018-08-22 | 2019-10-11 | 国网山东省电力公司电力科学研究院 | A kind of charging-self type gas producing device |
| CN112525591A (en) * | 2020-11-23 | 2021-03-19 | 佛山市高明区科企生产力促进中心 | Gas sampling device and rock stratum sample and gas sample corresponding method |
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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 |
Granted publication date: 20120704 Termination date: 20141017 |
|
| EXPY | Termination of patent right or utility model |