CN209215306U - A kind of gas chromatograph - Google Patents
A kind of gas chromatograph Download PDFInfo
- Publication number
- CN209215306U CN209215306U CN201821748030.0U CN201821748030U CN209215306U CN 209215306 U CN209215306 U CN 209215306U CN 201821748030 U CN201821748030 U CN 201821748030U CN 209215306 U CN209215306 U CN 209215306U
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- Prior art keywords
- inner tube
- gas
- wall
- heater box
- tube
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 28
- 238000010438 heat treatment Methods 0.000 claims description 9
- 230000007246 mechanism Effects 0.000 claims description 8
- 238000001514 detection method Methods 0.000 abstract description 15
- 238000000034 method Methods 0.000 abstract description 12
- 238000005336 cracking Methods 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 8
- 238000000926 separation method Methods 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 48
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000004587 chromatography analysis Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000004817 gas chromatography Methods 0.000 description 2
- 230000005526 G1 to G0 transition Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000004451 qualitative analysis Methods 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
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- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a kind of gas chromatographs, belong to testing equipment field, for solving in current gas chromatograph use process, situations such as gas after Pintsch process easily adheres to the inner wall with conveyance conduit before entering chromatographic column, the problem of content of material caused entry into chromatographic column reduces, influences final detection result.It includes heater box, air accumulator and delivery pipe, and delivery pipe includes inner and outer tubes, is connect at the top of inner tube one end and heater box, the inner tube other end is connected to chromatographic column；Outer tube is wrapped in outside inner tube, outer tube both ends and outer wall of inner tube airtight connection.The technical program since outer wall of inner tube is provided with several air holes as the gas inlet passages in air accumulator, when gas enters inner tube in air accumulator separation layer will be formed in the inner wall of inner tube, gas after the cracking being precipitated in heater box can be effectively prevent to adhere to inner tube wall, it reduces detection sample bubbing and enters the loss before chromatographic column, improve the accuracy of testing result.
Description
Technical field
The utility model belongs to testing equipment field, is a kind of gas chromatograph specifically.
Background technique
Gas chromatograph is using gas chromatography to non-volatile liquid and solid matter, can by Pintsch process,
It is analyzed after gasification.It can be used cooperatively with feux rouges and receipts spectroscopic methodology or mass spectrography, with chromatography as separation complex sample
Means reach higher accuracy.
Gas chromatography is to make the chromatography analysis method of mobile phase using gas.The sample of vaporization is by carrier gas (flowing
Phase) it brings into chromatographic column, the stationary phase in column is different from each component molecular force in sample, and each component is flowed out from chromatographic column
Time is different, and component is separated from each other.Using identification appropriate and record system, production marks the time of each component outflow chromatographic column
With the chromatogram of concentration.According to the appearance time and sequence shown in figure, qualitative analysis can be carried out to compound；According to the height at peak
Low and size can carry out quantitative analysis to compound.With efficiency height, high sensitivity, selectivity is strong, analysis speed is fast,
The features such as being widely used, be easy to operate.
In current gas chromatograph use process, gas after Pintsch process before entering chromatographic column easily attachment with it is defeated
Situations such as sending the inner wall of pipeline, the content of material caused entry into chromatographic column reduce, and influence final detection result.
Utility model content
The utility model aim be intended to provide it is a kind of it is simple and reasonable, gas after Pintsch process can be effectively prevent to exist
The gas chromatograph for conveying inside pipe wall and influencing detection structure is attached into chromatographic column.To realize the above-mentioned technical purpose, originally
Utility model the technical solution adopted is as follows:
A kind of gas chromatograph, including heater box, air accumulator and delivery pipe, the delivery pipe include inner and outer tubes, institute
It states and is connect at the top of inner tube one end and heater box, the said inner tube other end is connected to chromatographic column；The outer tube is wrapped in outside inner tube, institute
Outer tube both ends and outer wall of inner tube airtight connection are stated, the outer tube is connect with reservoir outlet；Said inner tube is wrapped in outer tube
It is in charge of on wall and is provided with several air holes.
Utility model by adopting the above technical scheme, heater box detect sample in heater box for accommodating detection sample
By entering in inner tube after Pintsch process forms gaseous state, outer tube is connect with reservoir outlet, and the gas in air accumulator can be into
Enter in outer tube, since outer tube package is with outside inner tube, and inner tube is provided with several air holes on the tube wall of outer tube inner part, then gas storage
Gas in tank can have air hole to enter in inner tube, since the flow direction of fluid is intended to flow to low pressure side, then store up
Air in gas tank will be flowed out by inner tube away from heater box side, while bring the gas after the cracking being precipitated in heater box into color
It composes in column；Since outer wall of inner tube is provided with several air holes as the gas inlet passages in air accumulator, gas enters in air accumulator
Separation layer will be formed in the inner wall of inner tube when inner tube, gas and inner tube wall after the cracking being precipitated in heater box can be effectively prevent
Attachment reduces detection sample bubbing and enters the loss before chromatographic column, improves the accuracy of testing result.
It further limits, snorkel is equipped between the outer tube and reservoir outlet, is provided with heating on the snorkel
Mechanism.
Setting snorkel is supplied gas for connecting outer tube and air accumulator, and in heating mechanism is arranged on snorkel for heating
Pipe, the gas that air accumulator can be discharged heat, and improve temperature when gas enters inner tube, prevent detection sample cracking gas
Rapidly be cooled when gas mixing situations such as condensing in body and air accumulator.
It further limits, the heating mechanism includes water tank, outlet pipe and water pump, and the water tank bottom and unit fixed on water pump suction are logical
Piping connection, described outlet pipe one end connect with exit of pump, the outlet pipe other end be successively wound in heater box outside with
After outside snorkel in access water tank.
Outlet pipe is connect with water pump and water tank, by water pump realize water circulation, outlet pipe be successively wound in heater box and
It on snorkel, is delivered on snorkel conducive to the heat for generating heater box, realizes and heated to by the gas of snorkel.
It further limits, the reservoir outlet is provided with regulating valve.
Regulating valve is set in reservoir outlet, convenient for adjusting the gas discharge pressure in air accumulator.
It further limits, explosion-proof valve is provided between said inner tube and heater box.
Explosion-proof valve is arranged in inner tube between heater box, with certain when can make to discharge in heater box by cracked gas
Pressure has certain flowing velocity after it is discharged, and reduces it into the flowing time between chromatographic column, reduces itself and inner tube
Time of contact between inner wall reduces and adheres to probability with inner tube wall, further increases testing result accuracy.
Compared with prior art, it is logical as the gas entrance in air accumulator that outer wall of inner tube is provided with several air holes to the utility model
Road will form separation layer in the inner wall of inner tube when gas enters inner tube in air accumulator, can effectively prevent being precipitated in heater box
Gas and inner tube wall adhere to after cracking, reduce detection sample bubbing and enter the loss before chromatographic column, improve detection knot
The accuracy of fruit.
Detailed description of the invention
The utility model can be further illustrated by the nonlimiting examples that attached drawing provides；
Fig. 1 is a kind of structural schematic diagram of gas chromatograph of the utility model；
Fig. 2 is the enlarged drawing of A in Fig. 1；
Main element symbol description is as follows:
Heater box 1, delivery pipe 3, inner tube 4, outer tube 5, air hole 6, water tank 7, outlet pipe 8, water pump 9, is adjusted air accumulator 2
Valve 10, explosion-proof valve 11.
Specific embodiment
It is right with reference to the accompanying drawings and examples in order to make those skilled in the art that the utility model may be better understood
Technical solutions of the utility model further illustrate.
As shown in Figure 1 and Figure 2, a kind of gas chromatograph, including heater box 1, air accumulator 2 and delivery pipe 3, the delivery pipe 3
Including inner tube 4 and outer tube 5, connected at the top of 4 one end of said inner tube and heater box 1,4 other end of said inner tube is connected to chromatographic column；
The outer tube 5 is wrapped in outside inner tube 4, and 5 both ends of outer tube and 4 outer wall airtight connection of inner tube, the outer tube 5 go out with air accumulator 2
Mouth connection；Said inner tube 4 is wrapped on 5 inner part tube wall of outer tube and is provided with several air holes 6.The outer tube 5 is exported with air accumulator 2
Between be equipped with snorkel, be provided with heating mechanism on the snorkel.The heating mechanism includes water tank 7, outlet pipe 8 and water pump
9,7 bottom of water tank is connect with 9 import of water pump by pipeline, described 8 one end of outlet pipe and water pump 9 outlet connect, it is described go out
8 other end of water pipe is successively wound in outside heater box 1 and outside snorkel in rear access water tank 7.The outlet of air accumulator 2 is provided with tune
Save valve 10.Explosion-proof valve 11 is provided between said inner tube 4 and heater box 1.
In the present embodiment, heater box 1 detects sample and passes through Pintsch process shape in heater box 1 for accommodating detection sample
At, by entering in inner tube 4, outer tube 5 and the outlet of air accumulator 2 connect, and the gas in air accumulator 2 is able to enter in outer tube 5 after gaseous state,
Outside due to the package of outer tube 5 and inner tube 4, and inner tube 4 is provided with several air holes 6 on the tube wall of 5 inner part of outer tube, then air accumulator 2
Interior gas can have air hole 6 to enter in inner tube 4, since the flow direction of fluid is intended to flow to low pressure side, then store up
Air in gas tank 2 will be flowed out by inner tube 4 away from 1 side of heater box, while by the gas band after the cracking being precipitated in heater box 1
Enter in chromatographic column；Since 4 outer wall of inner tube is provided with several air holes 6 as the gas inlet passages in air accumulator 2, in air accumulator 2
Separation layer will be formed in the inner wall of inner tube 4 when gas enters inner tube 4, gas after the cracking being precipitated in heater box 1 can be effectively prevent
Body and 4 inner wall of inner tube adhere to, and reduce detection sample bubbing and enter the loss before chromatographic column, improve the accurate of testing result
Property.Setting snorkel is used to heat snorkel, energy for connecting outer tube 5 and air accumulator 2, and in heating mechanism is arranged on snorkel
The enough gas that air accumulator 2 is discharged heats, and improves temperature when gas enters inner tube 4, prevents detection sample cracked gas
With situations such as the condensing that be rapidly cooled when gas mixing in air accumulator 2.Outlet pipe 8 is connect with water pump 9 and water tank 7, passes through water
Pump 9 realizes water circulation, and outlet pipe 8 is successively wound on heater box 1 and snorkel, defeated conducive to the heat for generating heater box 1
It send to snorkel, realizes and heated to by the gas of snorkel.Setting regulating valve 10 is exported in air accumulator 2, convenient for adjusting
Save the gas discharge pressure in air accumulator 2.Explosion-proof valve 11 is arranged in inner tube 4 between heater box 1, can make to pass through in heater box 1
Cracked gas discharge when with certain pressure, make its be discharged after have certain flowing velocity, reduce its into chromatographic column it
Between flowing time, reduce its time of contact between 4 inner wall of inner tube, reduce with 4 inner wall of inner tube adhere to probability, further mention
High detection result accuracy.
The technical program compared with prior art, 4 outer wall of inner tube be provided with several air holes 6 as the gas in air accumulator 2 into
Enter channel, separation layer will be formed in the inner wall of inner tube 4 when gas enters inner tube 4 in air accumulator 2, heater box 1 can be effectively prevent
Gas and 4 inner wall of inner tube adhere to after the cracking of middle precipitation, reduce detection sample bubbing and enter the loss before chromatographic column, mention
The accuracy of high detection result.
A kind of gas chromatograph provided by the utility model is described in detail above.The explanation of specific embodiment is only
It is the method and its core concept for being used to help understand the utility model.It should be pointed out that for the ordinary skill of the art
For personnel, without departing from the principle of this utility model, several improvements and modifications can be made to this utility model,
Modifications and modifications also fall within the protection scope of the claims of the utility model.
Claims (5)
1. a kind of gas chromatograph, including heater box, air accumulator and delivery pipe, it is characterised in that: the delivery pipe includes inner tube
And outer tube, said inner tube one end and heater box top are connect, the said inner tube other end is connected to chromatographic column；The outer tube is wrapped in
Outside inner tube, the outer tube both ends and outer wall of inner tube airtight connection, the outer tube are connect with reservoir outlet；Said inner tube is wrapped in
Outer tube, which is in charge of on wall, is provided with several air holes.
2. a kind of gas chromatograph according to claim 1, it is characterised in that: set between the outer tube and reservoir outlet
There is snorkel, is provided with heating mechanism on the snorkel.
3. a kind of gas chromatograph according to claim 2, it is characterised in that: the heating mechanism includes water tank, water outlet
Pipe and water pump, the water tank bottom are connect with unit fixed on water pump suction by pipeline, and described outlet pipe one end is connect with exit of pump, described
The outlet pipe other end is successively wound in outside heater box and outside snorkel in rear access water tank.
4. a kind of gas chromatograph according to claim 3, it is characterised in that: the reservoir outlet is provided with adjusting
Valve.
5. a kind of gas chromatograph according to claim 4, it is characterised in that: be provided between said inner tube and heater box
Explosion-proof valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821748030.0U CN209215306U (en) | 2018-10-26 | 2018-10-26 | A kind of gas chromatograph |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821748030.0U CN209215306U (en) | 2018-10-26 | 2018-10-26 | A kind of gas chromatograph |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209215306U true CN209215306U (en) | 2019-08-06 |
Family
ID=67457124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821748030.0U Expired - Fee Related CN209215306U (en) | 2018-10-26 | 2018-10-26 | A kind of gas chromatograph |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209215306U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114965828A (en) * | 2022-06-13 | 2022-08-30 | 北京高麦克仪器科技有限公司 | Electronic grade hydrogen chloride analysis method |
-
2018
- 2018-10-26 CN CN201821748030.0U patent/CN209215306U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114965828A (en) * | 2022-06-13 | 2022-08-30 | 北京高麦克仪器科技有限公司 | Electronic grade hydrogen chloride analysis method |
| CN114965828B (en) * | 2022-06-13 | 2023-09-05 | 北京高麦克仪器科技有限公司 | Electronic grade hydrogen chloride analysis method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191108 Address after: 401121, No. two, Chunlan Road 1, Chongqing, Yubei District Patentee after: Chongqing Institute of Food and Drug Inspection and Testing Address before: 400020 Chongqing Yubei District Yangbei Road No. 20 7 Building 1 Unit 7-4 Patentee before: Han Yan |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190806 Termination date: 20201026 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |