CN201803991U - Gas channel switching system for natural gas component analysis - Google Patents
Gas channel switching system for natural gas component analysis Download PDFInfo
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- CN201803991U CN201803991U CN2010205597586U CN201020559758U CN201803991U CN 201803991 U CN201803991 U CN 201803991U CN 2010205597586 U CN2010205597586 U CN 2010205597586U CN 201020559758 U CN201020559758 U CN 201020559758U CN 201803991 U CN201803991 U CN 201803991U
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Abstract
The utility model relates to a gas channel switching system for natural gas component analysis, mainly solving the problem that conventional natural gas component analysis can not be completed by the original dual-gas-channel natural gas analyzing system in one sample injection. The gas channel switching system is characterized by being provided with six-way valves including a quantitative sampling valve and a switching valve and chromatographic columns including a first chromatographic column and a second chromatographic column, wherein a joint 4 of the quantitative sampling valve is connected with a sample outlet, a joint 3 of the quantitative sampling valve is connected with a sample inlet, a quantitative pipe is connected between a joint 5 and a joint 6 of the quantitative sampling valve, a joint 1 of the quantitative sampling valve is connected to one side of a carrier gas inlet of a thermal conductivity detector, the first chromatographic column is connected between a joint 2 of the quantitative sampling valve and a joint 1 of the switching valve, the second chromatographic column is connected between a joint 6 and a joint 3 of the switching valve, and a joint 2 of the switching valve is communicated with a joint 5 thereof, and a joint 4 of the switching valve is connected to one side of a carrier gas outlet of the thermal conductivity detector. The switching system has the advantages of realizing all conventional natural gas component analysis after one sample injection and increasing analysis speed and precision obviously.
Description
Technical field
The utility model relates to a kind of system with gas chromatograph analysis gas component, and particularly a kind of gas component is analyzed the gas circuit switched system.
Background technology
At present, two gas circuit analytic approachs are adopted in the analysis of vapor-phase chromatography gas component usually, use this methods analyst rock gas sample and adopt 2 or 3 gas chromatographs mostly, and sample introduction just can be finished the conventional component analysis task of 1 rock gas sample more than 3 times.Operate loaded down with trivial detailsly, waste time and energy, analysis precision is not high, and analysis speed is low, and efficient is low, many costs of raw materials consumption height, and the data computation reporting printing can not once be finished in real time.
Summary of the invention
Technical problem to be solved in the utility model is to overcome the problem that the two gas circuit rock gas analytic system single injected samplings that exist in the background technology can not be finished the conventional component analysis of all natural gas, and provide a kind of gas component to analyze the gas circuit switched system, this gas component is analyzed the gas circuit switched system and is had the advantages that the conventional component of all natural gas is finished in the single injected sampling analysis, simple to operate, time saving and energy saving, analysis speed, precision obviously improve.
The invention for solving the technical problem can reach by following technical solution: this gas component is analyzed the gas circuit switched system and is comprised six-way valve and chromatographic column, described six-way valve has two, be respectively quantitative sample injection valve and transfer valve, chromatographic column has two, be respectively first chromatographic column and second chromatographic column, the interface 4 of quantitative sample injection valve connects sample export, the interface 3 of quantitative sample injection valve connects sample inlet, quantity tube is connected between the interface 5 of quantitative sample injection valve and interface 6 connects, the interface 1 of quantitative sample injection valve connects carrier gas inlet one side of thermal conductivity detector (TCD), first chromatographic column is connected 1 interface of the interface 2 of quantitative sample injection valve and transfer valve, second chromatographic column is connected on 3 interfaces 6 of transfer valve and interfaces, the interface 2 of transfer valve is communicated with 5 interfaces, and the carrier gas that the interface 4 of transfer valve connects thermal conductivity detector (TCD) exports a side.
The utility model is compared with the above-mentioned background technology can have following beneficial effect: this gas component is analyzed the gas circuit switched system owing to adopt said structure, at first two root chromatogram columns are placed in the chromatograph, utilize two six-way valves to connect, connect by switching, reach the analysis of an instrument single injected sampling and finish the purpose of the conventional component of all natural gas, analysis speed improves 33%.Because adopt the quantity tube sampling technique, the sample introduction number of times significantly reduces, and has reduced the error that human factor is brought, analysis precision obviously improves.
Description of drawings:
Accompanying drawing 1 is a structural representation of the present utility model.
Among the figure: 1-quantity tube, 2-quantitative sample injection valve, 3-sample export, 4-sample inlet, 5-first chromatographic column, 6-carrier gas outlet, 7-carrier gas inlet, 8-thermal conductivity detector (TCD), 9-transfer valve, 10-second chromatographic column.
Embodiment:
Below in conjunction with accompanying drawing will the utility model is described in further detail:
As shown in Figure 1, this gas component is analyzed the gas circuit switched system and is comprised six-way valve and chromatographic column, described six-way valve has two, be quantitative sample injection valve 2 and transfer valve 9, chromatographic column has two, be respectively first chromatographic column 5 and second chromatographic column 10, the interface 4 of quantitative sample injection valve 2 connects sample export 3, the interface 3 of quantitative sample injection valve 2 connects sample inlet 4, quantity tube 1 is connected between the interface 5 of quantitative sample injection valve 2 and interface 6 connects, the interface 1 of quantitative sample injection valve 2 connects carrier gas inlet 7 one sides of thermal conductivity detector (TCD) 8, first chromatographic column 5 is connected 1 interface of the interface 2 of quantitative sample injection valve 2 and transfer valve 9, second chromatographic column 10 is connected on 3 interfaces 6 of transfer valve 9 and interfaces, and the interface 2 of transfer valve 9 is communicated with 5 interfaces, and the carrier gas that the interface 4 of transfer valve 9 connects thermal conductivity detector (TCD) 8 exports 6 one sides.
Gas component is analyzed gas circuit switched system implementation procedure: utilize two six-way valves to change it into single gas circuit structure, transfer valve 9 is used for the mutual switching between two root chromatogram columns, these two six-way valves and two chromatographic columns are contained on the chromatograph, carrier gas is entered by thermal conductivity detector (TCD) 8 one sides, after switching through two six-way valves and two root chromatogram columns, drive the separated testing sample of opening and get back to thermal conductivity detector (TCD) 8 opposite sides, detect back emptying.Thermal conductivity detector (TCD) 8 detected chromatographic signals are exported the result through the chromatographic work station acquisition process.Detailed process is: quantitative sample injection valve 2 solid line states are that 3-6-5-4 is communicated with, and purge quantity tube 1 with sample, and quantitative sample injection valve 2 dotted line states are that 1-6-5-2 is communicated with, and 3-4 is communicated with, and is the sample introduction analysis state.Transfer valve solid line state is that carrier gas comes in to pass through the 1-2-5-4 of transfer valve 9 again to thermal conductivity detector (TCD) 8 through the 1-6-5-2 interface of quantitative sample injection valve 2 to first chromatographic column 5 through thermal conductivity detector (TCD) 8, the stationary phase of first chromatographic column 5 is components such as molecular sieve, the ethane in the separation detection rock gas, propane, butane, pentane, carbon dioxide; Transfer valve 9 dotted line states are that carrier gas comes in to arrive the 3-4 of transfer valve to thermal conductivity detector (TCD) through the 1-6 of transfer valve 9 to second chromatographic column 10 through the 1-6-5-2 interface of quantitative sample injection valve 2 again to first chromatographic column 5 through thermal conductivity detector (TCD) 8, the stationary phase of second chromatographic column 5 is components such as phosphorus benzene, the oxygen in the separation detection rock gas, nitrogen, methane, carbon monoxide.Thereby realize analyzing the purpose of gas component.
This gas component is analyzed the gas circuit switched system, and by the quantity tube single injected sampling, through the switching of two six-way valves, composition analysis task and carrier gas (high-pure helium) consumption that just can finish a rock gas sample reduce half.Greatly reduce analysis cost, improved analysis precision.
Claims (1)
1. a gas component is analyzed the gas circuit switched system, comprise six-way valve and chromatographic column, it is characterized in that: described six-way valve has two, be respectively quantitative sample injection valve (2) and transfer valve (9), chromatographic column has two, be respectively first chromatographic column (5) and second chromatographic column (10), the interface 4 of quantitative sample injection valve (2) connects sample export (3), the interface 3 of quantitative sample injection valve (2) connects sample inlet (4), quantity tube (1) is connected between the interface 5 of quantitative sample injection valve (2) and interface 6 connects, the interface 1 of quantitative sample injection valve (2) connects carrier gas inlet (7) one sides of thermal conductivity detector (TCD) (8), first chromatographic column (5) is connected 1 interface of the interface 2 of quantitative sample injection valve (2) and transfer valve (9), second chromatographic column (10) is connected on 3 interfaces 6 of transfer valve (9) and interfaces, the interface 2 of transfer valve (9) is communicated with 5 interfaces, and the interface 4 of transfer valve (9) connects carrier gas outlet (6) one sides of thermal conductivity detector (TCD) (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205597586U CN201803991U (en) | 2010-10-14 | 2010-10-14 | Gas channel switching system for natural gas component analysis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205597586U CN201803991U (en) | 2010-10-14 | 2010-10-14 | Gas channel switching system for natural gas component analysis |
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| CN201803991U true CN201803991U (en) | 2011-04-20 |
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| CN2010205597586U Expired - Lifetime CN201803991U (en) | 2010-10-14 | 2010-10-14 | Gas channel switching system for natural gas component analysis |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103123341A (en) * | 2011-11-18 | 2013-05-29 | 中国石油化工股份有限公司 | Method for determining mixed gas content |
| CN103134878A (en) * | 2011-11-23 | 2013-06-05 | 福建中烟工业有限责任公司 | Trapping and releasing method for improving gas chromatogram center cutting technique performance |
| CN103134866A (en) * | 2011-11-23 | 2013-06-05 | 福建中烟工业有限责任公司 | Valve-switching method for improving gas chromatogram center cutting technique performance |
| CN103913519A (en) * | 2013-01-05 | 2014-07-09 | 中国地质科学院矿产资源研究所 | Gas chromatography system for natural gas hydrate and detection method for components of natural gas hydrate |
| CN111505186A (en) * | 2020-05-11 | 2020-08-07 | 合肥水泥研究设计院有限公司 | Multichannel sample introduction gas chromatograph |
| CN113550729A (en) * | 2020-04-02 | 2021-10-26 | 中国石油天然气集团有限公司 | Detection recovery unit of unconventional oil gas exploitation atmospheric gas |
| CN114428121A (en) * | 2020-09-09 | 2022-05-03 | 中国石油化工股份有限公司 | Containing high concentration H2Quantitative detection device and method for all components of natural gas of S |
-
2010
- 2010-10-14 CN CN2010205597586U patent/CN201803991U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103123341A (en) * | 2011-11-18 | 2013-05-29 | 中国石油化工股份有限公司 | Method for determining mixed gas content |
| CN103123341B (en) * | 2011-11-18 | 2015-07-08 | 中国石油化工股份有限公司 | Method for determining mixed gas content |
| CN103134878A (en) * | 2011-11-23 | 2013-06-05 | 福建中烟工业有限责任公司 | Trapping and releasing method for improving gas chromatogram center cutting technique performance |
| CN103134866A (en) * | 2011-11-23 | 2013-06-05 | 福建中烟工业有限责任公司 | Valve-switching method for improving gas chromatogram center cutting technique performance |
| US9228984B2 (en) | 2011-11-23 | 2016-01-05 | Hongliang Lu | Gas chromatography-mass spectrometry method and gas chromatography-mass spectrometry apparatus therefor having a capture and release device |
| CN103913519A (en) * | 2013-01-05 | 2014-07-09 | 中国地质科学院矿产资源研究所 | Gas chromatography system for natural gas hydrate and detection method for components of natural gas hydrate |
| CN103913519B (en) * | 2013-01-05 | 2015-09-09 | 中国地质科学院矿产资源研究所 | Gas chromatography system for natural gas hydrate and detection method for components of natural gas hydrate |
| CN113550729A (en) * | 2020-04-02 | 2021-10-26 | 中国石油天然气集团有限公司 | Detection recovery unit of unconventional oil gas exploitation atmospheric gas |
| CN111505186A (en) * | 2020-05-11 | 2020-08-07 | 合肥水泥研究设计院有限公司 | Multichannel sample introduction gas chromatograph |
| CN114428121A (en) * | 2020-09-09 | 2022-05-03 | 中国石油化工股份有限公司 | Containing high concentration H2Quantitative detection device and method for all components of natural gas of S |
| CN114428121B (en) * | 2020-09-09 | 2024-04-09 | 中国石油化工股份有限公司 | High-concentration H 2 S-type natural gas full-component quantitative detection device and method |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110420 |
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| CX01 | Expiry of patent term |