CN104407068A - Gas chromatograph - Google Patents
Gas chromatograph Download PDFInfo
- Publication number
- CN104407068A CN104407068A CN201410670173.4A CN201410670173A CN104407068A CN 104407068 A CN104407068 A CN 104407068A CN 201410670173 A CN201410670173 A CN 201410670173A CN 104407068 A CN104407068 A CN 104407068A
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- CN
- China
- Prior art keywords
- thermal conductivity
- pipeline
- conductivity detector
- tcd
- chromatographic column
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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 invention discloses a gas chromatograph which comprises a carrier gas source, a chromatographic column, thermal conductivity detectors and a data processing and display recording device, wherein the carrier gas source is connected with the lower part of one thermal conductivity detector through a pipeline I; a pressure reducing valve, a regulating valve, a pressure gauge and a rotor flow meter are sequentially connected onto the pipeline I in series; the upper part of one thermal conductivity detector is connected with a six-way planar turning valve which is connected with a quantitative tube and connected with the chromatographic column through a pipeline II, and a vaporizer is arranged on the pipeline II; and the chromatographic column is connected with one thermal conductivity detector, and the thermal conductivity detectors are electrically connected with the data processing and display recording device. The gas chromatograph has simple structure, universality and reaction sensitivity on multiple substances, is wide in measurement range, fast to respond and stable in response signal, and responds to inert gases, CO, CO2 and SO2.
Description
Technical field
The present invention relates to a kind of pick-up unit, specifically, relate to a kind of gas chromatograph.
Background technology
Gas chromatograph is applied very wide in oil, chemical industry, biological chemistry, medical and health, food industry, environmental protection etc.It is except for quantitatively and except qualitative analysis, can also the physicochemical constant such as the partition factor of working sample on Stationary liquid, activity coefficient, molecular weight and specific surface area, is a kind of instrument carrying out analyzing detection to each component in mixed gas.Existing gas chromatograph sensitivity is low, and response signal is comparatively large by the impact of amount of carbon atom in measured matter, and it is more blunt to react.
Summary of the invention
The present invention, in order to overcome the deficiency of above-mentioned technical matters, provides a kind of gas chromatograph, can solve the problems of the technologies described above completely.
The technical scheme solved the problems of the technologies described above is as follows:
A kind of gas chromatograph, comprise carrier gas source, chromatographic column, thermal conductivity detector (TCD), data processing and display pen recorder, described carrier gas source is connected by pipeline with the bottom of thermal conductivity detector (TCD), pipeline between carrier gas source and thermal conductivity detector (TCD) is serially connected with reduction valve successively, variable valve, tensimeter, spinner-type flowmeter, the top of described thermal conductivity detector (TCD) is connected by pipeline with six-plane rotary valve, described six-plane rotary valve connects certain buret, described six-plane rotary valve is connected by pipeline with chromatographic column, the pipeline of connection six-plane rotary valve and chromatographic column is provided with carburetor, described chromatographic column is also connected by pipeline with thermal conductivity detector (TCD), described thermal conductivity detector (TCD) and data processing are passed through to be electrically connected with display pen recorder.
Described quantity tube is " C " shape and surrounds six-plane rotary valve.
Described thermal conductivity detector (TCD) and chromatographic column are all arranged in thermostat.
Described thermostat is two.
Described thermal conductivity detector (TCD) also arranges an exhausting pipeline, this exhausting pipeline is provided with atmospheric valve.
Structure of the present invention is simple, and have versatility, be all quick on the draw to a lot of material, measurement range is wide, and reaction is fast, and response signal is stablized, to comprising inert gas, CO, CO
2, SO
2all there is response.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Fig. 1 is structural representation of the present invention;
In figure: 1 is carrier gas source, 2 is reduction valve, and 3 is variable valve, and 4 is tensimeter, and 5 is spinner-type flowmeter, 6 is thermal conductivity detector (TCD), and 7 is six-plane rotary valve, and 8 is quantity tube, and 9 is carburetor, 10 is chromatographic column, and 11 is data processing and display pen recorder, and 12 is thermostat, and 13 is atmospheric valve.
Embodiment
A kind of gas chromatograph as shown in Figure 1, comprise carrier gas source 1, chromatographic column 10, thermal conductivity detector (TCD) 6, data processing and display pen recorder 11, described carrier gas source 1 is connected by pipeline with the bottom of thermal conductivity detector (TCD) 6, pipeline between carrier gas source 1 and thermal conductivity detector (TCD) 6 is serially connected with reduction valve 2 successively, variable valve 3, tensimeter 4, spinner-type flowmeter 5, the top of described thermal conductivity detector (TCD) 6 is connected by pipeline with six-plane rotary valve 7, described six-plane rotary valve 7 connects certain buret 8, described six-plane rotary valve 7 is connected by pipeline with chromatographic column 10, the pipeline of connection six-plane rotary valve 7 and chromatographic column 10 is provided with carburetor 9, described chromatographic column 10 is also connected by pipeline with thermal conductivity detector (TCD) 6, described thermal conductivity detector (TCD) 6 and data processing are passed through to be electrically connected with display pen recorder 11.Described quantity tube 8 is " C " shape and surrounds six-plane rotary valve 7.Described thermal conductivity detector (TCD) 6 and chromatographic column 10 are all arranged in thermostat 12.Described thermostat 12 is two.Described thermal conductivity detector (TCD) 6 also arranges an exhausting pipeline, this exhausting pipeline is provided with atmospheric valve 13.
In Fig. 1, the effect of reduction valve is that origin pressure is dropped to about 250KPa, variable valve 3 is for regulating the flow of carrier gas, and show uninterrupted with spinner-type flowmeter 5, six-plane rotary valve 7 and quantity tube 8 are with the use of the quantitative sampling realized sample and sample introduction, carburetor 9 is used for fluid sample to gasify, to flow through chromatographic column 10. due to stratographic analysis and temperature with carrier gas having very large relation, so be provided with thermostat 12 with the temperature value keeping the temperature of chromatographic column 10 to reach setting in chromatograph, gas is released by atmospheric valve 13 by sample and carrier gas after flowing through thermal conductivity detector (TCD) 6.
Structure of the present invention is simple, and have versatility, be all quick on the draw to a lot of material, measurement range is wide, and reaction is fast, and response signal is stablized, to comprising inert gas, CO, CO
2, SO
2all there is response.
Claims (5)
1. a gas chromatograph, comprise carrier gas source, chromatographic column, thermal conductivity detector (TCD), data processing and display pen recorder, it is characterized in that, described carrier gas source is connected by pipeline with the bottom of thermal conductivity detector (TCD), pipeline between carrier gas source and thermal conductivity detector (TCD) is serially connected with reduction valve successively, variable valve, tensimeter, spinner-type flowmeter, the top of described thermal conductivity detector (TCD) is connected by pipeline with six-plane rotary valve, described six-plane rotary valve connects certain buret, described six-plane rotary valve is connected by pipeline with chromatographic column, the pipeline of connection six-plane rotary valve and chromatographic column is provided with carburetor, described chromatographic column is also connected by pipeline with thermal conductivity detector (TCD), described thermal conductivity detector (TCD) and data processing are passed through to be electrically connected with display pen recorder.
2. a kind of gas chromatograph according to claim 1, is characterized in that, described quantity tube is " C " shape and surrounds six-plane rotary valve.
3. a kind of gas chromatograph according to claim 1, is characterized in that, described thermal conductivity detector (TCD) and chromatographic column are all arranged in thermostat.
4. a kind of gas chromatograph according to claim 3, is characterized in that, described thermostat is two.
5. a kind of gas chromatograph according to claim 1, is characterized in that, described thermal conductivity detector (TCD) also arranges an exhausting pipeline, and this exhausting pipeline is provided with atmospheric valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410670173.4A CN104407068A (en) | 2014-11-20 | 2014-11-20 | Gas chromatograph |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410670173.4A CN104407068A (en) | 2014-11-20 | 2014-11-20 | Gas chromatograph |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104407068A true CN104407068A (en) | 2015-03-11 |
Family
ID=52644715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410670173.4A Pending CN104407068A (en) | 2014-11-20 | 2014-11-20 | Gas chromatograph |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104407068A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104880527A (en) * | 2015-05-25 | 2015-09-02 | 苏州市华安普电力工程有限公司 | Gas chromatograph |
| CN105485408A (en) * | 2015-12-30 | 2016-04-13 | 上海华爱色谱分析技术有限公司 | Device for providing air source for switching of pneumatic valve on gas chromatograph |
-
2014
- 2014-11-20 CN CN201410670173.4A patent/CN104407068A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104880527A (en) * | 2015-05-25 | 2015-09-02 | 苏州市华安普电力工程有限公司 | Gas chromatograph |
| CN105485408A (en) * | 2015-12-30 | 2016-04-13 | 上海华爱色谱分析技术有限公司 | Device for providing air source for switching of pneumatic valve on gas chromatograph |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150311 |
|
| WD01 | Invention patent application deemed withdrawn after publication |