CN206420831U - It is easy to the gas chromatograph of sample introduction - Google Patents
It is easy to the gas chromatograph of sample introduction Download PDFInfo
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- CN206420831U CN206420831U CN201620959317.2U CN201620959317U CN206420831U CN 206420831 U CN206420831 U CN 206420831U CN 201620959317 U CN201620959317 U CN 201620959317U CN 206420831 U CN206420831 U CN 206420831U
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- sample
- bottle
- sample introduction
- sampling device
- chromatograph
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Abstract
The utility model provides the gas chromatograph for being easy to sample introduction, including chromatograph body, the chromatograph body is provided with injection port and outlet, the injection port is connected with a sampling device by sample feeding pipe, the sampling device includes sample injection bottle, absorbent cotton is provided with the sample injection bottle, one end of the sample injection bottle is connected with sample feeding pipe, the other end is connected with sample introduction connector, and the two ends junction of sample injection bottle is equipped with seal, connecting tube is provided between sample injection bottle and the sample introduction connector, and the connecting tube runs through whole sample introduction connector, it is in cone-shaped structure that the sample introduction connector, which is set, and round nose is connected with connecting tube.This chromatograph changes the structure of traditional screw thread sample feeding pipe, is quickly and easily connected by sample introduction connector with injector by setting sampling device, the operating time is effectively reduced there is provided operating efficiency, beneficial to reduction cost of human resources；The sample injection bottle for including absorbent cotton is set simultaneously, the impurity in sample can be effectively removed, extends the service life of instrument.
Description
Technical field
The utility model is related to a kind of gas chromatograph, and in particular to a kind of gas chromatograph for being easy to sample introduction.
Background technology
Gas chromatograph, be it is a kind of in mixed gas each component carry out analyze detection instrument, be widely used in oil,
In terms of chemical industry, biochemistry, medical and health, food industry, environmental protection.Gas chromatograph is first by mixture point using chromatographic column
From, then detected successively using detector it is separated out component, it is in addition to for qualitatively and quantitatively analyzing, moreover it is possible to determine sample
The physicochemical constants such as distribution coefficient, activity coefficient, molecular weight and specific surface area of the product in stationary phase.It is chromatographic to use rule
Journey, must first be passed through the carrier gas (nitrogen) of constant pressure into instrument during start, be then turned on power supply and be passed through other two auxiliary
Gas (hydrogen, air), by each detecting system heating of instrument until each system keeps constant temperature, could carry out gas sample detection work.
The structure of existing gas chromatograph, as shown in figure 4, including chromatograph body, the chromatograph body includes analysis
Unit and display unit, the analytic unit include source of the gas and control metering device, sampling device, thermostat and chromatographic column, institute
Stating sampling device includes six-way valve, and the display unit includes comparator and automatic recording instrument, and it is spiral shell that sampling device, which is provided with,
There is following defect in the injection port and outlet of line connection, such structure：First, being connected with diameter 2mm~3mm on injection port
Screw thread sample feeding pipe, and sample be using the injector such as gas bladders or liquid sample steel cylinder carry out sample introduction, screw thread sample feeding pipe with
It is difficult to connect between sample introduction container, causes operating difficulties, the time that extension staff is tested, reduce operating efficiency, from
And increase cost of human resources, in addition, chromatograph body is not provided with filtering the impurity such as the water or acid ＆ alkali liquid in sample,
Impurity enters the pollution to parts such as chromatographic column, quantity tubes after chromatograph body, results even in failure or even the report of chromatographic column
It is useless, increase the maintenance cost of instrument；Second, being only arranged to threaded port on the outlet of chromatograph body, correlation is not provided with
Can response sample enter instrument after display device, can neither directly, intuitively know whether sample comes into instrument, can not
Speed during sample introduction is reflected, and sample if not appearance failure occurs in instrument, can not just be sentenced to the washing time of quantity tube
Disconnected is the failure of the failure or instrument of injector in itself, increases maintenance difficulty, reduces operating efficiency.
Utility model content
In view of the deficienciess of the prior art, the utility model provides the gas chromatograph for being easy to sample introduction, this chromatograph exists
Injection port is connected with the sampling device for being easy to be connected with injector, and removing sample reclaimed water, solid are additionally provided with sampling device
Grain, the absorbent cotton of alkali lye, improve operating efficiency, reduce cost of human resources, while the effectively service life of extension instrument.
In order to achieve the above object, the technical scheme that the utility model is taken：
Be easy to the gas chromatograph of sample introduction, including chromatograph body, located at the intrinsic six-way valve of chromatograph, the chromatograph
Body is provided with injection port and outlet, and the injection port is connected with a sampling device, the sampling device bag by sample feeding pipe
Include to be provided with hollow and transparent sample injection bottle, the sample injection bottle and can remove the de- of the impurity such as sample reclaimed water, solid particle, alkali lye
Fat cotton, one end of the sample injection bottle is connected with sample feeding pipe, the other end is connected with the sample introduction connector being made up of acidproof base material, and
The two ends junction of sample injection bottle, which is equipped between seal, sample injection bottle and the sample introduction connector, is provided with connecting tube and the connection
Pipe runs through whole sample introduction connector, and the sample introduction connector is set to be connected in cone-shaped structure and round nose with connecting tube.
As optimal technical scheme, know whether sample comes into chromatograph body, and estimation in order to direct, directly perceived
Speed, sample during sample introduction are to the washing time of quantity tube, while the convenient failure excluded when not appearance occurs in chromatograph body,
And then be conducive to improving the analysis result tested, the one of the six-way valve connects hole is connected with aobvious sampling device by the first carrier gas line,
The aobvious sampling device includes the anti-suck bottle being connected with the first carrier gas line, and it is built-in that anti-suck bottle connects its by the second carrier gas line
There is the aobvious sample bottle of liquid, the aobvious sample bottle is communicated after being connected by the 3rd carrier gas line with outlet with air.
Compared with prior art, the utility model has the advantage that：
The 1st, the sampling device for including coniform sample introduction connector is set, the structure of traditional screw thread sample feeding pipe is changed, is led to
Cross sample introduction connector to be quickly and easily connected with injector, the operating time is effectively reduced there is provided operating efficiency, beneficial to reduction people
Power resources costs；Set simultaneously and include the sample injection bottle of absorbent cotton, can effectively remove water, solid particle, alkali lye in sample etc. miscellaneous
Matter, effectively prevents the parts such as chromatographic column, quantity tube to be corroded, and extends the service life of instrument.
2nd, set comprising the aobvious sampling device for showing sample bottle equipped with liquid, can directly, intuitively know whether sample comes into instrument
Device, and speed during estimation sample introduction, sample are to the washing time of quantity tube, is excluded when not appearance occurs in instrument while convenient
Failure, and then be conducive to improving the analysis result tested.
Brief description of the drawings
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of sampling device；
Fig. 3 is the structural representation of aobvious sampling device；
Fig. 4 is the structural representation of existing gas chromatograph；
Drawing reference numeral：1st, chromatograph body, 1-1, injection port, 1-2, outlet, 1-3, six-way valve, 1-4, analytic unit,
1-5, display unit, 2, sample feeding pipe, 3, sampling device, 3-1, sample injection bottle, 3-2, absorbent cotton, 3-3, sample introduction connector are 3-4, close
Sealing, 3-5, connecting tube, 3-6, nut, 4, aobvious sampling device, 4-1, the first carrier gas line, 4-2, anti-suck bottle, 4-3, the second carrier gas
Line, 4-4, aobvious sample bottle, 4-5, liquid, 4-6, the 3rd carrier gas line.
Embodiment
A kind of specific embodiment of the utility model is proposed as shown in Figure 1, is easy to the gas chromatograph of sample introduction, including chromatograph
Body 1, the chromatograph body 1, which includes analytic unit 1-4 and display unit 1-5, the analytic unit 1-4, includes source of the gas
And metering device, sampling device, thermostat and chromatographic column are controlled, the sampling device includes six-way valve 1-3, the six-way valve 1-
3 connect hole provided with six, and two of which is connected with quantity tube between connecing hole, and the sampling device of the analytic unit 1-4 is provided with
Injection port 1-1 and outlet 1-2, the injection port 1-1 are connected with a sampling device 3 by sample feeding pipe 2, the sample feeding pipe 2 and six
Port valve 1-3 mono- connects hole connection；The sampling device 3 includes the hollow and transparent sample injection bottle 3-1 being connected with sample feeding pipe 1, enters one
Step ensures the firm connection between sample feeding pipe 2 and sample injection bottle 3-1, and sample feeding pipe 2 is provided with the nut 3-6 for firm effect, this
Embodiment sets sample injection bottle 3-1 to be made up of lucite, and sample reclaimed water, solid can be removed by being provided with the sample injection bottle 3-1
The absorbent cotton 3-2, the sample injection bottle 3-1 of the impurity such as particle, alkali lye one end are connected with sample feeding pipe 2, the other end with by acid and alkali-resistance
The sample introduction connector 3-3 connections that material is made, the present embodiment selection sample introduction connector 3-3 is made up of elastomeric material, and enters
Sample bottle 3-1 two ends junction is equipped with seal 3-4, and the present embodiment sets seal 3-4 to be white steel screw, and with organic glass
The sample injection bottle 3-1 that glass is made is connected by the way that thread seal is firm, provided with defeated between sample injection bottle 3-1 and sample introduction the connector 3-3
Feeding sample to sample injection bottle 3-1 connecting tube 3-5 and connecting tube 3-5 run through whole sample introduction connector 3-3, the sample introduction connection
Head 3-3 is set to be connected in cone-shaped structure and round nose with connecting tube 3-5, i.e. sample introduction connector 3-3 width is along sample stream
To becoming larger setting, it is ensured that coincide, convenient, fast can connect, it is contemplated that sample passes through connecting tube 3-5 with the interior button of injector
When, there is certain impulse force to connecting tube 3-5, it is ensured that connecting tube 3-5 is consolidated with sample introduction connector 3-3 and is connected, the connecting tube
3-5 is upper and is located between sample injection bottle 3-1 and sample introduction connector 3-3 provided with the nut 3-6 for playing fixation.
The six-way valve 1-3 mono- connects hole and is connected with aobvious sampling device 4, the first carrier gas line 4-1 by the first carrier gas line 4-1
One end connect that hole is connected, the other end extends the outer surface of chromatograph body 1 with the one of six-way valve 1-3, the aobvious sampling device 4 is wrapped
Include the anti-suck bottle 4-2 being connected with the first carrier gas line 4-1 outer surface ports for being located at chromatograph body 1, and the first carrier gas line 4-1
Port be located at anti-suck bottle 4-2 inner bottom parts, the anti-suck bottle 4-2 by the second carrier gas line 4-3 connections built with liquid 4-5
Aobvious sample bottle 4-4, the liquid 4-5 is preferably transparency liquid, be typically chosen distilled water or can remove discharge sour gas it is dense
The sodium hydroxide solution for 10% is spent, the present embodiment sets liquid 4-5 to be that the distilled water in distilled water, and aobvious sample bottle 4-4 accounts for original
The 50% of volume, one end of the second carrier gas line 4-3 is located at top in anti-suck bottle 4-1, the other end and is located at aobvious sample bottle 4-4
Bottom, the aobvious sample bottle 4-4 communicates after being connected by the 3rd carrier gas line 4-6 with outlet 1-2 with air, the anti-suck bottle
4-2, aobvious sample bottle 4-4 are sealed glass jars, and bottle cap is the closure of PP materials, includes silica gel sealing pad, described first
Carrier gas line 4-1, the second carrier gas line 4-3, the 3rd carrier gas line 4-6 are a diameter of 3mm polytetrafluoroethylene (PTFE) carrier gas lines；If there is sample
After in into the sampling device of chromatograph body 1, sample first passes through anti-suck bottle 4-5 after six-way valve 1-3 and arrives aobvious sample bottle again
In 4-2, distilled water is set to produce bubble, otherwise bubble-free is produced, and can directly, intuitively know whether sample comes into chromatograph sheet
Body 1, speed, sample when can also estimate sample introduction are to the washing time of quantity tube, while the convenient chromatograph body 1 that excludes occurs
Not failure during appearance, and then be conducive to improving the analysis result tested.
When the utility model is used：According to the operational procedure of gas chromatograph, the carrier gas end first passed through on six-way valve 1-3 leads to
Enter constant temperature carrier gas, until unit reaches temperature constant state in chromatograph body 1, then by sampling device 3 by sample to fixed
Buret is rinsed, and during which sample enters aobvious sampling device by exhaust end, according to whether producing bubble determines whether that sample enters
Enter in instrument, the size and closeness that are produced according to bubble can determine whether the flow velocity of sample, can determine whether according to the time for producing bubble
Sample to the washing time of quantity tube, it is to be rinsed finish after, continue sample introduction and carry out experimental analysis.
Certainly, simply the utility model preferred embodiment is described in detail with reference to accompanying drawing above, not
Practical range of the present utility model is limited with this, all equivalence changes made according to principle of the present utility model, construction and structure,
It all should be covered by protection domain of the present utility model.
Claims (2)
1. it is easy to the gas chromatograph of sample introduction, including chromatograph body (1), the six-way valve (1- in chromatograph body (1)
3), the chromatograph body (1) is provided with injection port (1-1) and outlet (1-2), it is characterised in that：The injection port (1-1) is led to
Cross sample feeding pipe (2) and be connected with a sampling device (3), the sampling device (3) includes hollow and transparent sample injection bottle (3-1), institute
State and absorbent cotton (3-2) be provided with sample injection bottle (3-1), one end of the sample injection bottle (3-1) is connected with sample feeding pipe (2), the other end and
Sample introduction connector (3-3) connection being made up of acidproof base material, and the two ends junction of sample injection bottle (3-1) is equipped with seal
(3-4), is provided with connecting tube (3-5) between the sample injection bottle (3-1) and sample introduction connector (3-3) and the connecting tube (3-5) runs through
Whole sample introduction connector (3-3), the sample introduction connector (3-3) is set in cone-shaped structure and round nose and connecting tube (3-5)
Connection.
2. the gas chromatograph according to claim 1 for being easy to sample introduction, it is characterised in that：The one of the six-way valve (1-3)
Connect hole and aobvious sampling device (4) is connected with by the first carrier gas line (4-1), the aobvious sampling device (4) includes and the first carrier gas line (4-1)
The anti-suck bottle (4-2) of connection, anti-suck bottle (4-2) is connected built with liquid (4-5) by the second carrier gas line (4-3)
Aobvious sample bottle (4-4), aobvious sample bottle (4-4) be connected by the 3rd carrier gas line (4-6) with the outlet (1-2) after with big gas phase
It is logical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620959317.2U CN206420831U (en) | 2016-08-26 | 2016-08-26 | It is easy to the gas chromatograph of sample introduction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620959317.2U CN206420831U (en) | 2016-08-26 | 2016-08-26 | It is easy to the gas chromatograph of sample introduction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206420831U true CN206420831U (en) | 2017-08-18 |
Family
ID=59577399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620959317.2U Expired - Fee Related CN206420831U (en) | 2016-08-26 | 2016-08-26 | It is easy to the gas chromatograph of sample introduction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206420831U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106153775A (en) * | 2016-08-26 | 2016-11-23 | 中国石油天然气股份有限公司广西石化分公司 | It is easy to the gas chromatograph of sample introduction |
-
2016
- 2016-08-26 CN CN201620959317.2U patent/CN206420831U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106153775A (en) * | 2016-08-26 | 2016-11-23 | 中国石油天然气股份有限公司广西石化分公司 | It is easy to the gas chromatograph of sample introduction |
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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: 20170818 Termination date: 20180826 |
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| CF01 | Termination of patent right due to non-payment of annual fee |