CN207074188U - A kind of dirty gas detection sampling structure - Google Patents
A kind of dirty gas detection sampling structure Download PDFInfo
- Publication number
- CN207074188U CN207074188U CN201720930591.1U CN201720930591U CN207074188U CN 207074188 U CN207074188 U CN 207074188U CN 201720930591 U CN201720930591 U CN 201720930591U CN 207074188 U CN207074188 U CN 207074188U
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- Prior art keywords
- connector
- air inlet
- inlet pipe
- syringe
- sampling structure
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- 238000005070 sampling Methods 0.000 title claims abstract description 68
- 238000001514 detection method Methods 0.000 title claims abstract description 26
- 238000010276 construction Methods 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 6
- 238000003780 insertion Methods 0.000 claims description 5
- 230000037431 insertion Effects 0.000 claims description 5
- 230000007613 environmental effect Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 239000007943 implant Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
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- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a kind of dirty gas detection sampling structure, the sampling structure includes air inlet pipe and is arranged at the sampling valve of air inlet pipe one end, the syringe needle of syringe is inserted from sampling valve and connected with air inlet pipe, gas to be detected is squeezed into air inlet pipe from syringe, and is delivered in gas chromatograph and detected by air inlet pipe.Pass through an external sampling valve, sample gas can pass sequentially through sampling valve, air inlet pipe is injected into inside gas chromatograph, air inlet port without syringe directly to be connected to gas chromatograph is injected, the hand-holdable sampling valve of experimenter is moved on the outside of gas chromatograph and operated, do not influenceed by instrument, facilitate the intake operation of experimenter.By setting seal in sampling valve, the leakage of gas sample is prevented, ensures the accuracy of testing result.
Description
Technical field
The utility model belongs to dirty gas composition detection field, and in particular to a kind of dirty gas detection sampling structure.
Background technology
With industrial expansion, industrial pollution is also serious to affect whole ecological environment, and industrial pollution generally includes sky
Gas pollution, water pollution etc., air pollution effect is more serious, such as discharge carbon dioxide isothermal chamber gas can cause Global Temperature
Rise, discharge the sour gas such as sulfur dioxide or cause acid rain, polluted-water, soil, the death for causing water plant, crops
The underproduction, heavy damage ecological environment for the survival of mankind.Environmental improvement problem turns into top priority at this stage.
At present, for the improvement of environment, on the one hand need to respond the call of energy-saving and emission-reduction, on the other hand need to be directed to environment
Quality finds out the measure of reply, and the degree of accuracy of environmental quality detection also governs the improvement of environment.It is empty for environment at this stage
Gas detection mainly collection gas sample, then by the gas componant in chromatographic sample, to provide accurately
Counte-rplan.
Gas chromatograph is a kind of instrument for each component in mixed gas analyze detection, in oil, chemical industry, biology
Chemistry, medical and health, food industry, environmental protection etc. are widely used, and the exhaust sample collected is entered by gas chromatograph
The injection of gas port carries out analysis detection, can not sealed at air inlet port during gas injection, cause portion gas to be revealed,
On the one hand experimental situation is influenceed, on the other hand influences the accuracy of experimental result.Moreover, mainly pass through syringe in traditional approach
Gas is injected from the air inlet port, because air inlet port is arranged on instrument tip side, the opening position does not form accommodating operation
Space, therefore, the inconvenience of the implant operation of gas, influence experimental implementation.
Therefore, in view of problem above, it is necessary to a kind of new sampling structure is proposed, it is convenient effectively to note gas sample
Enter to inside detecting instrument, and prevent the leakage of gas sample, ensure the accuracy of testing result.
Utility model content
In view of this, the utility model provides a kind of dirty gas detection sampling structure, passes through an external sampling valve, sample
Gas can pass sequentially through sampling valve, air inlet pipe is injected into inside gas chromatograph, facilitate experimenter's intake operation, and by
Seal is set in sampling valve, the leakage of gas sample is prevented, ensures the accuracy of testing result.
A kind of dirty gas detection sampling structure proposed according to the purpose of this utility model, the sampling structure are placed in gas phase
Outside chromatograph, the sampling structure includes air inlet pipe, is arranged at the sampling valve of the air inlet pipe one end, the air inlet pipe
The other end is connected on the air inlet port of the gas chromatograph；The sampling structure also includes an external syringe, the note
The syringe needle of emitter is inserted from the sampling valve and connected with the air inlet pipe, and gas to be detected is squeezed into air inlet pipe from syringe,
And it is delivered in gas chromatograph and is detected by air inlet pipe.
Preferably, the sampling valve is included to the first connector of fixed air inlet pipe, to the of fixed insertion needle
Two connectors, it is connected between first connector and second connector, the syringe needle of syringe is inserted from the second connector
Enter, air inlet pipe one end connects after passing through the first connector inside the second connector with the syringe needle of syringe.
Preferably, first connector is hollow-core construction, including a fixing end and a connection end, the fixing end center
Place offers aperture, and the air inlet pipe is inserted from the aperture, and is formed and be interference fitted with fixing end；Second connector is
Hollow-core construction, including an inlet end and a connection end, offer aperture at the inlet end center, the syringe needle of the syringe from
Inserted at the aperture, the first connector is connected with the second connector by two connection ends.
Preferably, between the first connector and the second connector to be threadedly coupled, the first connector with it is right on the second connector
The internal thread and external screw thread of mutual cooperation should be provided with.
Preferably, first connector is sequentially connected with second connector by an intermediate connector, in described
Between endoporus is formed inside connector, form hollow-core construction, the syringe needle of syringe inserts from the second connector, air inlet pipe one end according to
It is secondary to pass through the first connector to be connected with intermediate connector and with the syringe needle of syringe inside the second connector.
Preferably, first connector, the second connector and intermediate connector are sequentially connected fixation by screw thread.
Preferably, both ends form external screw thread, first connector and the second connector outside the intermediate connector
Connection end inside form the internal thread to match with the external screw thread, or in both ends form inside the intermediate connector
Screw thread, the external screw thread to match with the internal thread is formed outside the connection end of first connector and the second connector.
Preferably, type limited location portion is raised into outside at the medium position of the intermediate connector.
Preferably, the endoporus aperture of the intermediate connector is more than the caliber of air inlet pipe.
Preferably, a seal is additionally provided with inside the inlet end, after the first connector is connected with the second connector or
After second connector is fixedly connected with intermediate connector, the seal compresses sealing.
Compared with prior art, dirty gas detection is with the advantages of sampling structure disclosed in the utility model：
The sampling structure includes air inlet pipe and is arranged at the sampling valve of air inlet pipe one end, and the syringe needle of syringe is from sampling valve
Place's insertion is connected with air inlet pipe, and gas to be detected is squeezed into air inlet pipe from syringe, and is delivered to gas-chromatography by air inlet pipe
Detected in instrument.By an external sampling valve, sample gas can pass sequentially through sampling valve, air inlet pipe is injected into gas chromatograph
Portion, the air inlet port without syringe directly to be connected to gas chromatograph are injected, and the hand-holdable sampling valve of experimenter is moved
Operated on the outside of to gas chromatograph, do not influenceed by instrument, facilitate the intake operation of experimenter.
By setting seal in sampling valve, the leakage of gas sample is prevented, ensures the accuracy of testing result.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic diagram of sampling structure disclosed in the utility model.
Fig. 2 is the partial sectional view of sampling structure disclosed in the utility model.
The title of digital or alphabetical representative corresponding component in figure：
1st, air intake structure 2, gas chromatograph 21, air inlet port
11st, air inlet pipe 12, syringe 13, the first connector 14, the second connector 15, intermediate connector 16, sealing
Part 131, fixing end 132, connection end 133, aperture 141, inlet end 142, connection end 143, aperture 151, endoporus
152nd, limiting section
Embodiment
Just as described in the background section, it can not sealed at air inlet port during gas injection, cause part gas
Body is revealed, and on the one hand influences experimental situation, on the other hand influences the accuracy of experimental result.Moreover, mainly lead in traditional approach
Cross syringe to inject gas from the air inlet port, because air inlet port is arranged on instrument tip side, the opening position is not formed
The space of accommodating operation, therefore, the implant operation inconvenience of gas, influence experimental implementation.
The utility model is directed to deficiency of the prior art, there is provided a kind of dirty gas detection sampling structure, by external
One sampling valve, sample gas can pass sequentially through sampling valve, air inlet pipe is injected into inside gas chromatograph, facilitate experimenter's air inlet
Operation, and by setting seal in sampling valve, the leakage of gas sample is prevented, ensure the accuracy of testing result.
The technical solution of the utility model will be clearly and completely described by embodiment below.Obviously,
Described embodiment is only the utility model part of the embodiment, rather than whole embodiments.Based on the utility model
In embodiment, the every other implementation that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example, belong to the scope of the utility model protection.
Please also refer to Fig. 1 to Fig. 2, as illustrated, a kind of dirty gas detection sampling structure, sampling structure 1 are placed in gas phase
Outside chromatograph 2, sampling structure 1 includes air inlet pipe 11, is arranged at the sampling valve of the one end of air inlet pipe 11, air inlet pipe 11 it is another
End is connected on the air inlet port 21 of gas chromatograph 2；Sampling structure also includes an external syringe 12, the syringe needle of syringe 12
Insert from sampling valve and connected with air inlet pipe 11, gas to be detected is squeezed into air inlet pipe 11 from syringe 12, and passes through air inlet pipe
11 are delivered to detection in gas chromatograph 2.By setting an air inlet pipe that the inlet end of gas chromatograph is extended into outside, without
The air inlet port that syringe is directly connected to gas chromatograph is injected, and the hand-holdable sampling valve of experimenter is moved to gas phase color
Operated on the outside of spectrometer, do not influenceed by instrument, facilitate the intake operation of experimenter.
Sampling valve is included to the first connector 13 of fixed air inlet pipe, to the second connector of fixed insertion needle
14, it is connected between the first connector 13 and the second connector 14, the syringe needle of syringe 12 inserts from the second connector 14, air inlet
The one end of pipe 11 connects after passing through the first connector 13 in the inside of the second connector 14 with the syringe needle of syringe 12.Gas to be detected is certainly
Syringe 12 is squeezed into air inlet pipe 11, and is delivered in gas chromatograph 2 and detected by air inlet pipe 11.
Wherein, the first connector 13 is hollow-core construction, including a fixing end 131 and a connection end 132, in fixing end 131
Aperture 133 is offered at the heart, air inlet pipe 11 is inserted from the aperture 131, and is formed and be interference fitted with fixing end 131；Passing through will
Air inlet pipe penetrates from aperture 131, because aperture space is smaller, effectively air inlet pipe can be fixed, be exerted oneself in operating personnel
Fixed position is just may move during pull, realizes effective fixation of the first connector and air inlet pipe.
Second connector 14 is hollow-core construction, including an inlet end 141 and a connection end 142, inlet end 141 are opened at center
Provided with aperture 143, the syringe needle of syringe 12 inserts from the aperture 143, to the syringe needle of position syringe 12, ensures that syringe needle exists
The inside of second connector 14 connects with air inlet pipe 11.
First connector 13 is sequentially connected with the second connector 14 by an intermediate connector 15, inside intermediate connector 15
Endoporus 151 is formed, forms hollow-core construction, the syringe needle of syringe 12 inserts from the second connector 14, and the one end of air inlet pipe 11 is successively
Connected through the first connector 13 with intermediate connector 15 and in the inside of the second connector 14 with the syringe needle of syringe 12.
Preferably, the first connector 13, the second connector 14 are sequentially connected fixation with intermediate connector 15 by screw thread.In
Between the outside both ends of connector 15 form external screw thread, formed inside the connection end of the first connector 13 and the second connector 14 with
The internal thread that external screw thread matches, or the inside both ends of intermediate connector 15 form internal thread, and the first connector 13 and second connects
The external screw thread to match with internal thread is formed outside the connection end of fitting 14.In addition to using being threadedly coupled, clamping can be also used
The other modes such as elastic connection, are not limited specifically.
Preferably, type limited location portion 152 is raised into outside at the medium position of intermediate connector 15, passes through limiting section
152 to position the fixed position of the first connector 13 and the second connector 14 on intermediate connector 15, and is locked at limiting section
Tightly.
Preferably, the aperture of endoporus 151 of intermediate connector is more than the caliber of air inlet pipe 11, in addition the first connector and second
The connection end of connector also possesses endoporus, and endoporus aperture is more than air inlet pipe caliber, to facilitate penetrating for air inlet pipe.
In addition, a seal 16 is additionally provided with inside inlet end 141, the first connector 13, the second connector 14 and centre
After connector 15 connects, seal compresses sealing, prevents gas leakage.
When installing air intake structure, an end of air inlet pipe 11 is connected on the air inlet port 21 of gas chromatograph 2 first, entered
The other end of tracheae 11 penetrates the first connector 13 from aperture 133, and sequentially passes through the first connector 13 and intermediate connector 15,
And intermediate connector 15 is stretched out in part, now the first connector 13 is fixed in air inlet pipe.By the syringe needle of syringe from aperture 143
Penetrate in the second connector 14, now connect the end of syringe needle and air inlet pipe, after by the connector 14 of intermediate connector 15 second
It is connected, forms the intake valve of a sealing, gas to be detected is squeezed into by air inlet pipe by syringe, air inlet pipe is deliver a gas to
Gas chromatograph is detected.
Embodiment 2
Remaining is same as Example 1, and difference is, the first connector 13 and the second connector 14 pass through two connection ends
It is connected.
Preferably, to be threadedly coupled between the first connector 13 and the second connector 14, the first connector 13 is connected with second
The internal thread and external screw thread of mutual cooperation are correspondingly arranged on part 14.In addition to using being threadedly coupled, also clamping elasticity can be used even
The other modes such as connect, be not limited specifically.
When installing air intake structure, an end of air inlet pipe 11 is connected on the air inlet port 21 of gas chromatograph 2 first, entered
The other end of tracheae 11 penetrates the first connector 13 from aperture 133, and the first connector 13 is stretched out in part, now the first connector
13 are fixed in air inlet pipe.The syringe needle of syringe is penetrated in the second connector 14 from aperture 143, now by syringe needle and air inlet pipe
End connect, after the first connector and the second connector are connected, formed one sealing intake valve, pass through syringe general
Gas to be detected squeezes into air inlet pipe, and air inlet pipe deliver a gas to gas chromatograph and detected.
The utility model discloses a kind of dirty gas detection sampling structure, the sampling structure include air inlet pipe be arranged at into
The sampling valve of tracheae one end, the syringe needle of syringe inserts from sampling valve to be connected with air inlet pipe, and gas to be detected is from syringe
Squeeze into air inlet pipe, and be delivered in gas chromatograph and detected by air inlet pipe.By an external sampling valve, sample gas can be according to
It is secondary to be injected into by sampling valve, air inlet pipe inside gas chromatograph, without syringe directly to be connected to the air inlet of gas chromatograph
Port is injected, and the hand-holdable sampling valve of experimenter is moved on the outside of gas chromatograph and operated, and is not influenceed by instrument,
Facilitate the intake operation of experimenter.
By setting seal in sampling valve, the leakage of gas sample is prevented, ensures the accuracy of testing result.
The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or new using this practicality
Type.A variety of modifications to these embodiments will be apparent for those skilled in the art, determine herein
The General Principle of justice can be realized in other embodiments in the case where not departing from spirit or scope of the present utility model.Cause
This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The most wide scope consistent with features of novelty.
Claims (10)
- A kind of 1. dirty gas detection sampling structure, it is characterised in that the sampling structure is placed in outside gas chromatograph, it is described enter Spline structure includes air inlet pipe, is arranged at the sampling valve of the air inlet pipe one end, and the other end of the air inlet pipe is connected to described On the air inlet port of gas chromatograph；The sampling structure also includes an external syringe, and the syringe needle of the syringe is described in Insertion is connected with the air inlet pipe at sampling valve, and gas to be detected is squeezed into air inlet pipe from syringe, and is conveyed by air inlet pipe Detected in gas chromatograph.
- 2. dirty gas detection sampling structure according to claim 1, it is characterised in that the sampling valve is included to fixation First connector of air inlet pipe, to the second connector of fixed insertion needle, first connector is connected with described second It is connected between part, the syringe needle of syringe inserts from the second connector, and air inlet pipe one end connects after passing through the first connector second Connected inside fitting with the syringe needle of syringe.
- 3. dirty gas detection sampling structure according to claim 2, it is characterised in that first connector is hollow knot Structure, including a fixing end and a connection end, aperture are offered at the fixing end center, the air inlet pipe is inserted from the aperture Enter, and formed and be interference fitted with fixing end；Second connector is hollow-core construction, including an inlet end and a connection end, institute State and aperture is offered at inlet end center, the syringe needle of the syringe is inserted from the aperture, and the first connector is connected with second Part is connected by two connection ends.
- 4. dirty gas detection sampling structure according to claim 3, it is characterised in that the first connector and the second connector Between for threaded connection, the internal thread and external screw thread of mutual cooperation are correspondingly arranged on the first connector and the second connector.
- 5. dirty gas detection sampling structure according to claim 3, it is characterised in that first connector and described the Two connectors are sequentially connected by an intermediate connector, and endoporus is formed inside the intermediate connector, form hollow-core construction, note The syringe needle of emitter inserts from the second connector, and air inlet pipe one end sequentially passes through the first connector with intermediate connector and connected second Connected inside fitting with the syringe needle of syringe.
- 6. dirty gas detection sampling structure according to claim 5, it is characterised in that first connector, second connect Fitting is sequentially connected fixation with intermediate connector by screw thread.
- 7. dirty gas detection sampling structure according to claim 6, it is characterised in that both ends outside the intermediate connector External screw thread is formed, forms what is matched with the external screw thread inside the connection end of first connector and the second connector Both ends form internal thread, the connection of first connector and the second connector inside internal thread, or the intermediate connector End is outside to form the external screw thread to match with the internal thread.
- 8. dirty gas detection sampling structure according to claim 7, it is characterised in that the middle position of the intermediate connector The place of putting raises into type limited location portion to outside.
- 9. dirty gas detection sampling structure according to claim 5, it is characterised in that the endoporus hole of the intermediate connector Footpath is more than the caliber of air inlet pipe.
- 10. the dirty gas detection sampling structure according to claim 3 or 5, it is characterised in that also set inside the inlet end A seal is equipped with, after the first connector is connected with the second connector or after the second connector is fixedly connected with intermediate connector, The seal compresses sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720930591.1U CN207074188U (en) | 2017-07-28 | 2017-07-28 | A kind of dirty gas detection sampling structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720930591.1U CN207074188U (en) | 2017-07-28 | 2017-07-28 | A kind of dirty gas detection sampling structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207074188U true CN207074188U (en) | 2018-03-06 |
Family
ID=61523061
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720930591.1U Expired - Fee Related CN207074188U (en) | 2017-07-28 | 2017-07-28 | A kind of dirty gas detection sampling structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207074188U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114324755A (en) * | 2021-12-28 | 2022-04-12 | 深圳市步锐生物科技有限公司 | Pneumatic connection adapter needle device and pneumatic connection system |
| CN115541737A (en) * | 2022-08-29 | 2022-12-30 | 上海聚鼎半导体设备有限公司 | A fully automatic gas chromatograph connection device and installation method |
-
2017
- 2017-07-28 CN CN201720930591.1U patent/CN207074188U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114324755A (en) * | 2021-12-28 | 2022-04-12 | 深圳市步锐生物科技有限公司 | Pneumatic connection adapter needle device and pneumatic connection system |
| CN115541737A (en) * | 2022-08-29 | 2022-12-30 | 上海聚鼎半导体设备有限公司 | A fully automatic gas chromatograph connection device and installation method |
| CN115541737B (en) * | 2022-08-29 | 2024-11-19 | 上海聚鼎半导体设备有限公司 | A fully automatic gas chromatograph connection device and installation method |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180306 Termination date: 20200728 |
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| CF01 | Termination of patent right due to non-payment of annual fee |