CN203561617U - Gas channel for separation of nine components of one needle sample introduction in gas chromatography detection - Google Patents
Gas channel for separation of nine components of one needle sample introduction in gas chromatography detection Download PDFInfo
- Publication number
- CN203561617U CN203561617U CN201320638001.XU CN201320638001U CN203561617U CN 203561617 U CN203561617 U CN 203561617U CN 201320638001 U CN201320638001 U CN 201320638001U CN 203561617 U CN203561617 U CN 203561617U
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- Prior art keywords
- gas
- inlet
- communicated
- intake opening
- air intake
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- Expired - Lifetime
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- 238000001514 detection method Methods 0.000 title claims abstract description 15
- 238000004817 gas chromatography Methods 0.000 title abstract description 9
- 238000000926 separation method Methods 0.000 title abstract description 6
- 239000007789 gas Substances 0.000 claims abstract description 64
- 239000001257 hydrogen Substances 0.000 claims abstract description 30
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 30
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 29
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 10
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 238000004587 chromatography analysis Methods 0.000 abstract description 2
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 5
- 239000012159 carrier gas Substances 0.000 description 5
- 238000004458 analytical method Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 239000000470 constituent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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Abstract
The utility model discloses a gas channel for separation of nine components of one needle sample introduction in gas chromatography detection, which overcomes the problems that in the prior art, multiple needle sample introduction is required in full-component detection in oil chromatography detection, and the detection efficiency is low. The gas channel comprises a first gas source gas inlet, a second gas source gas inlet, a hydrogen inlet and an air inlet, wherein the first gas source gas inlet is connected with a sample introduction pipeline which is provided with a sample inlet; the second gas source gas inlet is communicated with a second gas inlet of a thermal conductivity detector by a communication pipeline; the hydrogen inlet is respectively communicated with a gas inlet of a nickel converting furnace and a gas inlet of a first hydrogen flame detector by communication pipelines; the air inlet is respectively communicated with a second hydrogen flame detector and the gas inlet of the first hydrogen flame detector by communication pipelines. The gas channel is simple in structure, achieves the separation of nine components by one needle sample introduction without replacing chromatographic columns and load gases repeatedly, saves time and gas consumption, and improves the detection efficiency.
Description
Technical field
This utility model relates to a kind of testing tool of Dissolved Gases in Insulating Oil, particularly relates to a kind of gas chromatography 1 pin sample introduction and separate the gas circuit of 9 components.
Background technology
At present, oil-filled electric equipment is generally used mineral insulating oil for insulating material, and when equipment exists overheated or discharge fault, insulating oil can decomposite the gases such as acetylene, hydrogen, and is dissolved in oil.Therefore, detect oil dissolved gas, whether diagnosable oil-filled electric equipment there is fault.In existing market this type of special gas chromatography do insulation during oil analysis the general packed column that adopts carry out component separation, and adopt N2 as carrier gas, enter 1 sample needle and can realize the detection analysis of 7 kinds of components such as H2, CO, CO2, CH4, C2H4, C2H6, C2H2.But, sometimes also need air content to analyze, just increased again the detection to O2, two kinds of components of N2, now need to change supporting chromatographic column specially and change carrier gas, when sample introduction, also need just can complete into 2 sample needles the analysis of 9 kinds of components, this mode air consumption is large, process is loaded down with trivial details, efficiency is low simultaneously.
Utility model content
The utility model has overcome in prior art, and the full constituent existing during oil chromatography detects detects and needs spininess sample introduction, and the problem that detection efficiency is low, provides a kind of gas chromatography 1 pin sample introduction simple in structure, easy to use to separate the gas circuit of 9 components.
Technical solution of the present utility model is, provide a kind of gas chromatography 1 pin sample introduction with following structure to separate the gas circuit of 9 components: to contain the first gas source air inlet, the second gas source air inlet, hydrogen inlet, air inlet, the first gas source air inlet connects sample channel, and sample channel is provided with injection port; The second gas source air inlet is communicated with the second air intake opening of thermal conductivity detector (TCD) by connecting pipe; Hydrogen inlet is communicated with respectively the air intake opening of nickel reburner and the air intake opening of the first hydrogen flame detector by connecting pipe; Air inlet is communicated with respectively the air intake opening of the air intake opening of the second hydrogen flame detector and the first hydrogen flame detector by connecting pipe.
Described sample channel connects the air intake opening of four-way valve, the first gas outlet of four-way valve is communicated with the air intake opening of the first chromatographic column by connecting pipe, the gas outlet of the first chromatographic column is communicated with the air intake opening of a hydrogen flame detector again by connecting pipe, the second gas outlet of four-way valve is communicated with the air intake opening of the second chromatographic column by connecting pipe, the gas outlet of the second chromatographic column is communicated with the air intake opening of nickel reburner by connecting pipe, the gas outlet of nickel reburner is communicated with the air intake opening of the second hydrogen flame detector by connecting pipe, the 3rd gas outlet of four-way valve is communicated with the air intake opening of the 3rd chromatographic column by connecting pipe, the gas outlet of the 3rd chromatographic column is communicated with the first air intake opening of thermal conductivity detector (TCD) by connecting pipe.
Four-way valve is that two T-valve are connected in series, and the gas circuit connection between pipeline is communicated with T-valve.
Compared with prior art, the gas circuit that the utility model gas chromatography 1 pin sample introduction separates 9 components has the following advantages: realized 1 pin sample introduction and reached the separation of 9 kinds of components, not needed to change back and forth chromatographic column and carrier gas again, having saved the time, save gas consumption, improved detection efficiency.
Accompanying drawing explanation
Fig. 1 is the workflow structural representation that the utility model gas chromatography 1 pin sample introduction separates the gas circuit of 9 components.
Embodiment
In accompanying drawing explanation, label 1 is the first gas source pipe, and 2 is second gas source pipes, the 3rd, and Hydrogen Line, the 4th, air duct, the 5th, injection port, the 6th, four-way valve, 7 is first chromatographic columns, 8 is second chromatographic columns, 9 is the 3rd chromatographic columns, the 10th, and thermal conductivity detector (TCD), the 11st, nickel reburner, 12 is first hydrogen flame detectors, and 13 is second hydrogen flame detectors.
The gas circuit that the utility model gas chromatography 1 pin sample introduction is separated to 9 components below in conjunction with the drawings and specific embodiments is described further: as shown in the figure, the course of work of this process of gas path is: by the first gas source pipe 1, provided and analyzed carrier gas used, the carrier gas that the second gas source pipe 2 provides the reference arm of thermal conductivity detector (TCD) 10 to pass through; Hydrogen Line 3 provides the required excessive H2 of nickel reburner 11 and the first hydrogen flame detector 12, the second hydrogen flame detector 13 required H2 that burns; Air duct 4 provides the first hydrogen flame detector 12, the second hydrogen flame detector 13 required air that burns.Gaseous sample is entered and is detected in gas circuit by injection port 5, then through four-way valve 6, is split into 3 road gases, enters respectively chromatographic column the first chromatographic column 7, the second chromatographic column 8 and the 3rd chromatographic column 9.The first chromatographic column 7 can separation of C H4, C2H4, C2H6, C2H2, then flows into the second hydrogen flame detector 13, and completes analysis.The second chromatographic column 8 separates H2, O2, CO, CO2, and gaseous sample need to be introduced in nickel reburner 11, under the effect of high temperature and catalyzer, reacts with excessive H2, CO, CO2 is changed into CH4, then enter the first hydrogen flame detector 12, and complete detection.The 3rd chromatographic column 9 can separate H2, O2, N2, and gaseous sample enters in the gage beam of thermal conductivity detector (TCD) 10, and completes detection.
Claims (2)
1. the gas circuit that in a gas chromatographic detection, 1 pin sample introduction 9 components separate, contain the first gas source air inlet (1), the second gas source air inlet (2), hydrogen inlet (3), air inlet (4), the first gas source air inlet (1) connects sample channel, and sample channel is provided with injection port (5); The second gas source air inlet (2) is communicated with the second air intake opening of thermal conductivity detector (TCD) (10) by connecting pipe; Hydrogen inlet (3) is communicated with respectively the air intake opening of nickel reburner (11) and the air intake opening of the first hydrogen flame detector (13) by connecting pipe; air inlet (4) is communicated with respectively the air intake opening of the air intake opening of the second hydrogen flame detector (12) and the first hydrogen flame detector (13) by connecting pipe, it is characterized in that: described sample channel connects the air intake opening of four-way valve (6), the first gas outlet of four-way valve (6) is communicated with the air intake opening of the first chromatographic column (7) by connecting pipe, the gas outlet of the first chromatographic column (7) is communicated with the air intake opening of a hydrogen flame detector (13) again by connecting pipe, the second gas outlet of four-way valve (6) is communicated with the air intake opening of the second chromatographic column (8) by connecting pipe, the gas outlet of the second chromatographic column (8) is communicated with the air intake opening of nickel reburner (11) by connecting pipe, the gas outlet of nickel reburner (11) is communicated with the air intake opening of the second hydrogen flame detector (12) by connecting pipe, the 3rd gas outlet of four-way valve (6) is communicated with the air intake opening of the 3rd chromatographic column (9) by connecting pipe, the gas outlet of the 3rd chromatographic column (9) is communicated with the first air intake opening of thermal conductivity detector (TCD) (10) by connecting pipe.
2. the gas circuit that in gas chromatographic detection according to claim 1,1 pin sample introduction 9 components separate, is characterized in that: described four-way valve (6) is that two T-valve are connected in series, and the gas circuit connection between pipeline is communicated with T-valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320638001.XU CN203561617U (en) | 2013-10-16 | 2013-10-16 | Gas channel for separation of nine components of one needle sample introduction in gas chromatography detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320638001.XU CN203561617U (en) | 2013-10-16 | 2013-10-16 | Gas channel for separation of nine components of one needle sample introduction in gas chromatography detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203561617U true CN203561617U (en) | 2014-04-23 |
Family
ID=50511331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320638001.XU Expired - Lifetime CN203561617U (en) | 2013-10-16 | 2013-10-16 | Gas channel for separation of nine components of one needle sample introduction in gas chromatography detection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203561617U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109917049A (en) * | 2019-04-22 | 2019-06-21 | 河南中分仪器股份有限公司 | Portable gas chromatograph analytical equipment |
-
2013
- 2013-10-16 CN CN201320638001.XU patent/CN203561617U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109917049A (en) * | 2019-04-22 | 2019-06-21 | 河南中分仪器股份有限公司 | Portable gas chromatograph analytical equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140423 |