CN208313911U - A kind of hydrogen isotope analysis special-purpose gas chromatograph - Google Patents
A kind of hydrogen isotope analysis special-purpose gas chromatograph Download PDFInfo
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- CN208313911U CN208313911U CN201821019508.6U CN201821019508U CN208313911U CN 208313911 U CN208313911 U CN 208313911U CN 201821019508 U CN201821019508 U CN 201821019508U CN 208313911 U CN208313911 U CN 208313911U
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- China
- Prior art keywords
- way valve
- interface
- hydrogen isotope
- gas chromatograph
- chromatographic column
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- 239000007789 gas Substances 0.000 title claims abstract description 26
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 23
- 239000001257 hydrogen Substances 0.000 title claims abstract description 23
- UFHFLCQGNIYNRP-UHFFFAOYSA-N hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 21
- 238000004458 analytical method Methods 0.000 title claims abstract description 17
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000007788 liquid Substances 0.000 claims abstract description 15
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 15
- 229910001220 stainless steel Inorganic materials 0.000 claims description 9
- 239000010935 stainless steel Substances 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 4
- 238000005372 isotope separation Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000012159 carrier gas Substances 0.000 description 11
- YZCKVEUIGOORGS-OUBTZVSYSA-N deuterium Chemical compound [2H] YZCKVEUIGOORGS-OUBTZVSYSA-N 0.000 description 10
- 230000004927 fusion Effects 0.000 description 10
- 229910052805 deuterium Inorganic materials 0.000 description 9
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005070 sampling Methods 0.000 description 4
- 238000007906 compression Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000004587 chromatography analysis Methods 0.000 description 2
- 238000004817 gas chromatography Methods 0.000 description 2
- 239000001307 helium Substances 0.000 description 2
- 229910052734 helium Inorganic materials 0.000 description 2
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium(0) Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 2
- 210000004940 Nucleus Anatomy 0.000 description 1
- 241001465382 Physalis alkekengi Species 0.000 description 1
- 206010037660 Pyrexia Diseases 0.000 description 1
- FPKOPBFLPLFWAD-UHFFFAOYSA-N Trinitrotoluene Chemical compound CC1=CC=C([N+]([O-])=O)C([N+]([O-])=O)=C1[N+]([O-])=O FPKOPBFLPLFWAD-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 125000004435 hydrogen atoms Chemical group [H]* 0.000 description 1
- 238000010606 normalization Methods 0.000 description 1
- 239000003758 nuclear fuel Substances 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000002194 synthesizing Effects 0.000 description 1
- 229910052722 tritium Inorganic materials 0.000 description 1
- YZCKVEUIGOORGS-NJFSPNSNSA-N tritium Chemical compound [3H] YZCKVEUIGOORGS-NJFSPNSNSA-N 0.000 description 1
Abstract
The utility model discloses a kind of hydrogen isotope analysis special-purpose gas chromatographs, comprising: six-way valve A, six-way valve B, counterbalance valve, low temperature liquid nitrogen tank, chromatographic column, TCD detector, chromatographic work station, quantitative loop；Quantitative loop is equipped between c interface and f interface in the six-way valve A；B interface in the six-way valve A is connected with the h interface in six-way valve B, i interface in the six-way valve B is connected to chromatographic work station by TCD detector, n interface in six-way valve B is connected with one end of chromatographic column, the other end of the chromatographic column is connected with the j interface in six-way valve B, the chromatographic column is placed in low temperature liquid nitrogen tank, and the counterbalance valve is connected to the m interface in six-way valve B.The application, which has, to be reduced labour cost, the energy saving service life for subtracting material, increasing chromatographic apparatus, is conducive to production unit to hydrogen isotope separation monitoring and other advantages.
Description
Technical field
The utility model relates to a kind of chromatograph, specifically a kind of hydrogen isotope analysis special-purpose gas chromatograph.
Background technique
Deuterium is another stable isotope of hydrogen, also referred to as heavy hydrogen.Important raw material of the deuterium as nuclear fusion, not only may be used
With military, and can be civilian.Controlled nuclear fusion (artificial sun) is exactly with deuterium for important basic material, deuterium triton fusion
The huge energy that reaction generates collects, and benefits for the mankind.It is known that nuclear fusion generally refer to deuterium tritium fusion synthesis it is heavier
Atomic nucleus helium and release the process of huge energy.In nature, the sun is exactly " fusion reactor " an of super giant,
And controlled nuclear fusion carries out under manual control.Therefore it is commonly called as " artificial sun ".According to expert calculation, 1 liter of seawater
In can extract 0.03 gram of deuterium, the energy discharged in fusion reaction be equivalent to burning 300 liters of gasoline generate thermal energy.Or
It says, the energy that 1 gram of deuterium participates in nuclear fusion release is equivalent to 10,000 liters of gasoline.Because deuterium is extracted from seawater, this
New energy has the characteristics that inexhaustible, nexhaustible, cheap, cleaning.In the case where traditional energy is increasingly depleted, it is had become
The main new energy depended on for existence and development for human future.
Deuterium also can be widely used in the industries such as scientific research, medical treatment, electronics, agricultural, industry, extraordinary lamps and lanterns.Point of hydrogen isotope
It has very important significance from for fusion reactor fuel recycle etc., hydrogen isotope separation detection at present uses gas-chromatography list
Valve, single-column do carrier gas using He in the analysis process, and the molecular weight for helium occur is close with hydrogen isotope, and thermal conductivity coefficient is poor
Not less, therefore it is unfavorable for the detection of microcomponent.Simultaneously because gas compression generates negative when chromatographic column immerses low temperature liquid nitrogen tank
Pressure, flash disruption instrument sensor-based system cause gas-chromatography instrument to break down.
Utility model content
In view of the foregoing defects the prior art has, this application provides a kind of dedicated gas-chromatographies of hydrogen isotope analysis
Instrument has and reduces labour cost, the energy saving service life for subtracting material, increasing chromatographic apparatus, is conducive to production unit to the same position of hydrogen
The advantages that plain separating monitoring.
To achieve the above object, the technical solution of the application are as follows: a kind of hydrogen isotope analysis special-purpose gas chromatograph, packet
It includes: six-way valve A, six-way valve B, counterbalance valve, low temperature liquid nitrogen tank, chromatographic column, TCD detector, chromatographic work station, quantitative loop；It is described
Quantitative loop is equipped between c interface in six-way valve A and f interface；The h interface in b interface and six-way valve B in the six-way valve A
It is connected, the i interface in the six-way valve B is connected to chromatographic work station by TCD detector, n interface and chromatography in six-way valve B
One end of column is connected, and the other end of the chromatographic column is connected with the j interface in six-way valve B, and the chromatographic column is placed in low temperature liquid nitrogen tank
In, the counterbalance valve is connected to the m interface in six-way valve B.
Further, the b interface in the six-way valve A is connected by stainless steel tube with the h interface in six-way valve B.
Further, the TCD detector connects chromatographic work station by signal wire.
Further, the TCD detector is micro- thermal conductivity detector (TCD).
Further, the chromatographic column is Ф 3mm*1m stainless stee l packed column.
Further, the low temperature liquid nitrogen tank is Dewar bottle, and has stainless steel sealing structure with cover.
Further, the signal wire is to receive signal wire.
Further, the stainless steel tube is Ф 2mm stainless steel.
Due to using the technology described above, can obtain following technical effect: the application uses bivalve 1 to the utility model
The concatenated gas chromatograph of column, reduces labour cost, and energy conservation subtracts material, increases the service life of chromatographic apparatus, is conducive to produce
Monitoring of the unit to hydrogen isotope separation.
Six-way valve A in the application plays sample introduction valve action, and six-way valve B, which connects the counterbalance valve, to be play a part of to balance pressure,
When preventing from entering low temperature liquid nitrogen tank due to chromatographic column, gas compression generates negative pressure, flash disruption instrument sensor-based system.
Detailed description of the invention
Fig. 1 is the sampling state pneumatic diagram of the utility model.
Fig. 2 is the sample introduction state pneumatic diagram of the utility model
Number explanation in figure: 1, six-way valve A, 2, six-way valve B, 3, counterbalance valve, 4, low temperature liquid nitrogen tank, 5, chromatographic column, 6, TCD
Detector, 7, chromatographic work station, 8, quantitative loop 9, stainless steel tube；
Specific embodiment
The utility model is described in further detail in the following with reference to the drawings and specific embodiments: special to this as example
Benefit is further described explanation.
The hydrogen isotope analysis special-purpose gas chromatograph of the utility model, the quantitative analysis by the way of 1 column of bivalve, six is logical
Valve A1 brings sample gas into six-way valve B2, by six-way valve B2 carrier gas by sample bring into hydrogen isotope analysis chromatographic column specially 5 into
Row separates, with 6 response signal of TCD detector, and 7 collecting signal of chromatographic work station is converted into spectrogram, area normalization standard measure.Its
The course of work is divided into sampling, sample introduction two parts.
One, sample: this process is to make chromatographic column after entering low temperature liquid nitrogen tank full of carrier gas.Sampling state pneumatic diagram is as schemed
Shown in 1, under sampling state, six-way valve A1 adjacent a-b, c-d, f-e interface communicates respectively, and a-f, e-d, c-b interface are disconnected
Open stuffiness.Sample gas is blown into six-way valve A1 by e interface, enters quantitative loop 8 through f interface by direction shown in arrow in Fig. 1, is full of
Extra gas is discharged through c-d interface after quantitative loop, guarantees that the inner sample air volume of each sample introduction quantitative loop 8 is consistent, is equivalent to every time
Sample volume is identical.Carrier gas is blown into six-way valve A1 by a interface, enters six-way valve B2 through b interface by direction shown in arrow in Fig. 1
In.Six-way valve B2 is adjacent, and h-i, n-m, k-j interface communicate respectively, and the disconnection of n-h, i-j, k-m interface cannot ventilate, by Fig. 1
Direction shown in arrow enters the h interface of six-way valve B2 through the b interface of six-way valve A, and carrier gas enters TCD detector 6 after i interface
In, at this time without sample gas by detector, no chromatographic peak is generated.In addition carrier gas passes through 3 regime flow of counterbalance valve by six-way valve all the way
The m interface of B2 enters, and carrier gas enters one end of chromatographic column 5 by n interface, by chromatographic column 5 other end in direction shown in arrow in Fig. 1
It is connected with the j interface of six-way valve B2, chromatographic column 5 immerses the low temperature liquid nitrogen tank 4 that liquid nitrogen is housed after being full of carrier gas, and anti-gas compression produces
Raw negative pressure, flash disruption instrument sensor-based system are vented by k interface.
Two, sample introduction: sample introduction state pneumatic diagram is as shown in Fig. 2, this process is by changing six-way valve A1 and six-way valve B2 shape
State, six-way valve A1 adjacent a-f, b-c, d-e interface communicate respectively, and a-b, c-d, f-e interface disconnect stuffiness, and carrier gas enters
The sample gas of quantitative loop 8 is pressed into direction shown in arrow in Fig. 1 through f interface after a interface and enters six-way valve B2's by b interface after c
H interface, adjacent n-h, i-j, k-m interface of six-way valve B2 communicates respectively at this time, and the disconnection of h-i, n-m, k-j interface cannot ventilate,
Chromatographic column 5 is brought by n interface by sample gas in direction shown in arrow in Fig. 1, is kept completely separate in chromatographic column 5, is flowed out from chromatographic column 5
Carrier gas with sample gas, into signal is formed in TCD detector 6, last signal collection is passed in chromatographic work station 7 and forms chromatography
Signal peak.
The utility model does carrier gas using Ne, 1 column of bivalve, when preventing from immersing low temperature liquid nitrogen tank due to chromatographic column, gas pressure
Contracting generates negative pressure, flash disruption instrument sensor-based system；Low-grade fever leads section structure and increases sensitivity.
The above, only the utility model create preferable specific embodiment, but the protection that the utility model is created
Range is not limited thereto, and anyone skilled in the art creates the technical scope disclosed in the utility model
Interior, technical solution and its utility model design created according to the utility model are subject to equivalent substitution or change, should all cover
Within the protection scope that the utility model is created.
Claims (8)
1. a kind of hydrogen isotope analysis special-purpose gas chromatograph characterized by comprising six-way valve A, six-way valve B, counterbalance valve,
Low temperature liquid nitrogen tank, chromatographic column, TCD detector, chromatographic work station, quantitative loop；Between c interface and f interface in the six-way valve A
Equipped with quantitative loop；B interface in the six-way valve A is connected with the h interface in six-way valve B, and the i interface in the six-way valve B is logical
Cross TCD detector and be connected to chromatographic work station, the n interface in six-way valve B is connected with one end of chromatographic column, the chromatographic column it is another
End is connected with the j interface in six-way valve B, and the chromatographic column is placed in low temperature liquid nitrogen tank, and the counterbalance valve is connected in six-way valve B
M interface.
2. a kind of hydrogen isotope analysis special-purpose gas chromatograph according to claim 1, which is characterized in that the six-way valve A
In b interface be connected with the h interface in six-way valve B by stainless steel tube.
3. a kind of hydrogen isotope analysis special-purpose gas chromatograph according to claim 1, which is characterized in that the TCD detection
Device connects chromatographic work station by signal wire.
4. a kind of hydrogen isotope analysis special-purpose gas chromatograph according to claim 1, which is characterized in that the TCD detection
Device is micro- thermal conductivity detector (TCD).
5. a kind of hydrogen isotope analysis special-purpose gas chromatograph according to claim 1, which is characterized in that the chromatographic column is
Ф 3mm*1m stainless stee l packed column.
6. a kind of hydrogen isotope analysis special-purpose gas chromatograph according to claim 1, which is characterized in that the low temperature liquid nitrogen
Tank is Dewar bottle, and has stainless steel sealing structure with cover.
7. a kind of hydrogen isotope analysis special-purpose gas chromatograph according to claim 3, which is characterized in that the signal wire is
Receive signal wire.
8. a kind of hydrogen isotope analysis special-purpose gas chromatograph according to claim 2, which is characterized in that the stainless steel tube
For Ф 2mm stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821019508.6U CN208313911U (en) | 2018-06-29 | 2018-06-29 | A kind of hydrogen isotope analysis special-purpose gas chromatograph |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821019508.6U CN208313911U (en) | 2018-06-29 | 2018-06-29 | A kind of hydrogen isotope analysis special-purpose gas chromatograph |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208313911U true CN208313911U (en) | 2019-01-01 |
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ID=64717276
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821019508.6U Active CN208313911U (en) | 2018-06-29 | 2018-06-29 | A kind of hydrogen isotope analysis special-purpose gas chromatograph |
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| Country | Link |
|---|---|
| CN (1) | CN208313911U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111579694A (en) * | 2020-05-28 | 2020-08-25 | 中国工程物理研究院核物理与化学研究所 | System and method for analyzing content of trace impurities in deuterium-tritium mixed gas |
| CN112834668A (en) * | 2020-12-30 | 2021-05-25 | 中国原子能科学研究院 | Low-temperature control device for analyzing hydrogen isotopes by gas chromatography |
-
2018
- 2018-06-29 CN CN201821019508.6U patent/CN208313911U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111579694A (en) * | 2020-05-28 | 2020-08-25 | 中国工程物理研究院核物理与化学研究所 | System and method for analyzing content of trace impurities in deuterium-tritium mixed gas |
| CN111579694B (en) * | 2020-05-28 | 2022-09-23 | 中国工程物理研究院核物理与化学研究所 | System and method for analyzing content of trace impurities in deuterium-tritium mixed gas |
| CN112834668A (en) * | 2020-12-30 | 2021-05-25 | 中国原子能科学研究院 | Low-temperature control device for analyzing hydrogen isotopes by gas chromatography |
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