CN208969052U - A kind of gas chromatograph with purification mechanism - Google Patents
A kind of gas chromatograph with purification mechanism Download PDFInfo
- Publication number
- CN208969052U CN208969052U CN201821464114.1U CN201821464114U CN208969052U CN 208969052 U CN208969052 U CN 208969052U CN 201821464114 U CN201821464114 U CN 201821464114U CN 208969052 U CN208969052 U CN 208969052U
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- CN
- China
- Prior art keywords
- glass tube
- fixing piece
- gas chromatograph
- purification mechanism
- vaporizer
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- 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.)
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Abstract
The utility model discloses a kind of gas chromatographs with purification mechanism, including cabinet, the box house is provided with vaporizer, the vaporizer is connected by chromatographic column with detection device, and the outside of the appendix of vaporizer side connection is provided with airtight valve, the detection device upper end is equipped with vent valve, and it is connected on extraneous recording equipment outside detection device by the external connection connected, the glass tube fixing piece that the remote gas transmission pipe end setting of the airtight valve is threadedly coupled, there are two the glass tube fixing piece settings, and glass tube is fixed between two glass tube fixing pieces, and another glass tube fixing piece is connected with air inlet pipe, the glass tube is filled with active carbon, and active carbon both ends are equipped with sealing ring.The gas chromatograph with purification mechanism is provided with the structure of the purification light gas of inertia, can effectively get rid of the impurity mixed in inert gas, greatly increases the accuracy of gas chromatograph detection.
Description
Technical field
The utility model relates to gas chromatograph techniques field, specially a kind of gas chromatograph with purification mechanism.
Background technique
Gas chromatograph refers to the chromatography instrument for using gas as mobile phase.Its principle mainly utilizes substance
The difference of boiling point, polarity and adsorption property realizes the separation of mixture.Sample to be analysed is after vaporizer gasification by inert gas
(i.e. carrier gas, also known as mobile phase) is brought into chromatographic column, and liquid or solid stationary phase is contained in column, and each component tends in sample
Distribution or adsorption equilibrium are formed between mobile phase and stationary phase.With the flowing of carrier gas, sample component carries out instead during exercise
Multiple multiple distribution or adsorption/desorption distribute the big component of concentration in carrier gas and first flow out chromatographic column, and distribute in stationary phase
It is flowed out after the big component of concentration.
The inert gas of existing gas chromatograph flows out use generally from liquid steel cylinder, and interior of steel bottle is easy to appear
The lesser particulate contamination of volume ratio, these impurity can be mixed together in sample with inert gas, influence whether gas in this way
The analytical effect of chromatography.
Utility model content
The purpose of this utility model is to provide a kind of gas chromatographs with purification mechanism, to solve above-mentioned background skill
The inert gas for the gas chromatograph currently on the market that art proposes flows out use generally from liquid steel cylinder, and interior of steel bottle is easy
There is the lesser particulate contamination of volume ratio, these impurity can be mixed together in sample with inert gas, will affect in this way
To gas chromatograph analytical effect the problem of.
To achieve the above object, the utility model provides the following technical solutions: a kind of gas-chromatography with purification mechanism
Instrument, including cabinet, the box house are provided with vaporizer, and the vaporizer is connected by chromatographic column with detection device, and
The outside of the appendix of vaporizer side connection is provided with airtight valve, and the detection device upper end is equipped with vent valve, and detects dress
The external external connection by connection is set to be connected on extraneous recording equipment, the remote gas transmission pipe end setting threaded connection of the airtight valve
Glass tube fixing piece, there are two the glass tube fixing piece settings, and is fixed with glass tube between two glass tube fixing pieces, and
Another glass tube fixing piece is connected with air inlet pipe, and the glass tube is filled with active carbon, and active carbon both ends are equipped with
Sealing ring, sealing ring inside engaging have three layers of air-permeable layer.
Preferably, it is bulge-structure outside the glass tube fixing piece, and is equipped with helicitic texture outside its bulge-structure.
Preferably, the glass tube is hollow form cylindrical structure, and is melting between its two sides and glass tube fixing piece
It is tightly connected.
It preferably, is cyclic structure outside the sealing ring, and its outer dia is less than glass tube diameter.
Preferably, the air-permeable layer uses non-woven fabrics material, and its inside for being evenly distributed on sealing ring.
Compared with prior art, the utility model has the beneficial effects that should the gas chromatograph setting with purification mechanism
There is the structure of the purification light gas of inertia, effectively the impurity mixed in inert gas can be got rid of, greatly increase gas phase color
The accuracy of spectrometer detection.The glass tube fixing piece of the device plays the role of fixed glass tube, and such inert gas is passing through glass
When glass pipe, the active carbon on the inside of glass tube can fall contaminant filter, while air-permeable layer can firmly fix active carbon
It in glass tube, prevents active carbon from entering the inside of vaporizer, contaminant filter is fallen by active carbon with this, is avoided miscellaneous
Matter enters in sample, improves the accuracy of detection.
Detailed description of the invention
Fig. 1 is a kind of gas chromatograph structural schematic diagram with purification mechanism of the utility model；
Fig. 2 is enlarged structure schematic diagram at A in a kind of gas chromatograph Fig. 1 with purification mechanism of the utility model；
Fig. 3 is a kind of gas chromatograph seal ring structure schematic diagram with purification mechanism of the utility model.
In figure: 1, cabinet, 2, vaporizer, 3, detection device, 4, vent valve, 5, external connection, 6, airtight valve, 7, appendix,
8, chromatographic column, 9, air inlet pipe, 10, glass tube fixing piece, 11, glass tube, 12, active carbon, 13, sealing ring, 14, air-permeable layer.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-3 is please referred to, the utility model provides a kind of technical solution: a kind of gas chromatograph with purification mechanism,
Including cabinet 1, cabinet 1 is internally provided with vaporizer 2, and vaporizer 2 is connected by chromatographic column 8 with detection device 3, and vaporizer
The outside of the appendix 7 of 2 sides connection is provided with airtight valve 6, and 3 upper end of detection device is equipped with vent valve 4, and outside detection device 3
Portion is connected on extraneous recording equipment by the external connection 5 of connection, the glass that the setting of remote 7 end of appendix of airtight valve 6 is threadedly coupled
Pipe fixing piece 10, there are two the settings of glass tube fixing piece 10, and is fixed with glass tube 11 between two glass tube fixing pieces 10,
And another glass tube fixing piece 10 is connected with air inlet pipe 9, is bulge-structure outside glass tube fixing piece 10, and its protrusion knot
Helicitic texture is equipped with outside structure, the glass tube fixing piece 10 of this structure plays the role of fixed glass tube 11, facilitates glass tube 11
Disassembly, active carbon 12 is filled with inside glass tube 11, and 12 both ends of active carbon are equipped with sealing ring 13, glass tube 11 is hollow form
Cylindrical structure, and be melting sealed connection between its two sides and glass tube fixing piece 10, the glass tube 11 of this structure is convenient outer
Observation of the boundary personnel for active carbon 12, while glass tube 11 plays the role of fixed active carbon 12, keeps inert gas quasi-
It is true by active carbon 12, it is cyclic structure outside sealing ring 13, and outside it that engaging, which has three layers of air-permeable layer 14, inside sealing ring 13
Portion's diameter is less than 11 inside diameter of glass tube, and the sealing ring 13 of this structure plays the role of fixed ventilation layer 14, can will breathe freely
Layer 14 is firmly fixed on the two sides of active carbon 12, prevents active carbon 12 from flowing in vaporizer 2, and air-permeable layer 14 uses non-woven fabrics material
Matter, and its inside for being evenly distributed on sealing ring 13, the air-permeable layer 14 of this structure do not interfere with the circulation of inert gas, simultaneously
Air-permeable layer 14 can seal active carbon 12, prevent active carbon 12 from flowing in vaporizer 2.
Working principle: when having the gas chromatograph of purification mechanism using this, the device is placed on suitably first
Place, then again by the vaporizer 2 for needing the sample that detects to be placed on inside cabinet 1, then by the indifferent gas in extraneous steel cylinder
Body is passed into the inside of air inlet pipe 9, and then inert gas passes through the inside that glass tube fixing piece 10 enters glass tube 11 again, so
When passing through 11 inside of glass tube, the porous structure on 11 inside active carbon 12 of glass tube can inhale impurity inert gas afterwards
It is attached fall, impurity extra in inert gas is got rid of with this, then inert gas pass through again sealing ring 13 enter it is closed
The inside of valve 6, then airtight valve 6 is opened, so that clean inert gas is entered the inside of appendix 7, such appendix 7 just will
Inert gas is transported to the inside of vaporizer 2, then restarts the device, and vaporizer 2 can gasify sample, and will gasification
Sample and inert gas be transported to chromatographic column 8, then chromatographic column 8 carries out the sample of gasification and inert gas repeated multiple times
Distribution or absorption (this process is disclosed mature technology, does not do excessive elaboration herein), until the sample distributed enters
Sample is analyzed by detection device 3 in the inside of detection device 3, and the data then analyzed are transported to by external connection 5
In extraneous equipment, vent valve 4 can be opened after use, it is more to will test 3 inside of device by extraneous equipment display
Remaining gas discharge, to be detected next time, if necessary to the active carbon 12 inside glass tube 11 replaced when
It waits, glass tube fixing piece 10 can be removed from the device, then again take out the sealing ring 13 inside glass tube 11,
It is easy to operate quick to be replaced to active carbon 12, to complete a series of activities.
Although the utility model is described in detail with reference to the foregoing embodiments, come for those skilled in the art
Say, it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of technical characteristic into
Row equivalent replacement, within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on should all
It is included within the scope of protection of this utility model.
Claims (5)
1. a kind of gas chromatograph with purification mechanism, including cabinet (1), the cabinet (1) is internally provided with vaporizer
(2), the vaporizer (2) is connected by chromatographic column (8) with detection device (3), and the appendix of vaporizer (2) side connection
(7) outside is provided with airtight valve (6), and detection device (3) upper end is equipped with vent valve (4), and logical outside detection device (3)
The external connection (5) for crossing connection is connected on extraneous recording equipment, it is characterised in that: remote appendix (7) end of the airtight valve (6) is set
The glass tube fixing piece (10) of threaded connection is set, there are two glass tube fixing piece (10) settings, and two glass tubes are fixed
It is fixed between part (10) glass tube (11), and another glass tube fixing piece (10) is connected with air inlet pipe (9), the glass
It manages and is filled with active carbon (12) inside (11), and active carbon (12) both ends are equipped with sealing ring (13), the sealing ring (13) is internal
Engaging has three layers of air-permeable layer (14).
2. a kind of gas chromatograph with purification mechanism according to claim 1, it is characterised in that: the glass tube is solid
Determine to be bulge-structure outside part (10), and is equipped with helicitic texture outside its bulge-structure.
3. a kind of gas chromatograph with purification mechanism according to claim 1, it is characterised in that: the glass tube
(11) it is hollow form cylindrical structure, and is melting sealed connection between its two sides and glass tube fixing piece (10).
4. a kind of gas chromatograph with purification mechanism according to claim 1, it is characterised in that: the sealing ring
(13) external is cyclic structure, and its outer dia is less than glass tube (11) inside diameter.
5. a kind of gas chromatograph with purification mechanism according to claim 1, it is characterised in that: the air-permeable layer
(14) non-woven fabrics material, and its inside for being evenly distributed on sealing ring (13) are used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821464114.1U CN208969052U (en) | 2018-09-07 | 2018-09-07 | A kind of gas chromatograph with purification mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821464114.1U CN208969052U (en) | 2018-09-07 | 2018-09-07 | A kind of gas chromatograph with purification mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208969052U true CN208969052U (en) | 2019-06-11 |
Family
ID=66755758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821464114.1U Expired - Fee Related CN208969052U (en) | 2018-09-07 | 2018-09-07 | A kind of gas chromatograph with purification mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208969052U (en) |
-
2018
- 2018-09-07 CN CN201821464114.1U patent/CN208969052U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20190611 Termination date: 20200907 |