CN109824014A - Tail gas on superconducting tokamak device extract system is automatically separated purification system - Google Patents
Tail gas on superconducting tokamak device extract system is automatically separated purification system Download PDFInfo
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- CN109824014A CN109824014A CN201910155018.1A CN201910155018A CN109824014A CN 109824014 A CN109824014 A CN 109824014A CN 201910155018 A CN201910155018 A CN 201910155018A CN 109824014 A CN109824014 A CN 109824014A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/10—Nuclear fusion reactors
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Abstract
The invention discloses the tail gas on a kind of superconducting tokamak device extract system to be automatically separated purification system, primary air accumulator is inflated by pipeline and charge valve into porous gas separation chamber, and it is evacuated unit porous gas is separated by pump-line and evacuating valve by indoor gas and shifted to primary air accumulator, so that porous gas separates the atmospheric pressure value that indoor air pressure is maintained at specified, the cryogenic pump extracts the gas revealed from porous gas separation chamber aperture by valve and connecting pipe out of vacuum cavity, and cryogenic pump can rise again after tail gas separation.The present invention carries out what tail gas was automatically separated using aerial drainage principle, select orifice size appropriate and working gas pressure appropriate, indoor mixed gas is separated in porous gas, due to aerial drainage effect, small mass number molecule is easy to flow out from aperture, and the big gas molecule of mass number is not easy to flow out, therefore the big mass number molecule of realization that can be convenient and small mass number molecule efficiently separate.
Description
Technical field
The present invention relates to vacuum technique and magnetic confinement fusion technical fields more particularly to a kind of superconducting tokamak device to take out
Tail gas in gas system is automatically separated purification system.
Background technique
Tokamak device is a kind of magnetic confinement nuclear fusion device, it mainly utilizes high-intensity magnetic field that plasma confinement is existed
In vacuum chamber, in order to guarantee the lasting progress of reaction, it is necessary to by extract system constantly foreign gas and unreacted work
Make gas timely to extract, while fuel gas timely must be supplemented by inflating port, to guarantee the lasting progress of reaction.Mesh
Working gas used by preceding EAST device is deuterium, and generated tail gas is discharged in air in experiment, and deuterium is one
On the one hand the more expensive gas of kind, this method for exhausting waste a large amount of deuterium, the tail gas generated in experiment is also possible to
Undesirable influence is brought on air.In following fusion reactor, since the fusionable material used is tritium, cost is higher,
And certain radioactivity is had, it certainly cannot discharging directly into atmosphere, it is necessary to carry out tail gas separation and then recycle, to save to greatest extent
About operating cost, while avoiding bringing environment pollution.
Summary of the invention
The object of the invention is to remedy the disadvantages of known techniques, provides a kind of superconducting tokamak device extract system
On tail gas be automatically separated purification system.
The present invention is achieved by the following technical solutions:
A kind of tail gas on superconducting tokamak device extract system is automatically separated purification system, includes primary air accumulator, secondary
Grade air accumulator, pumping unit, cryogenic pump, porous gas separation chamber and vacuum cavity, the gas outlet of the primary air accumulator are logical
It crosses first pipe and the first valve to connect with the air inlet of the porous gas separation chamber, the end of first pipe extend into more
The bottom of hole gas separation chamber, the bleeding point of porous gas separation chamber is by the second valve, second pipe and pumping unit and just
The air inlet connection of grade air accumulator, the porous gas separation chamber are nested in vacuum cavity and by flanges one and following
The air inlet of vacuum cavity connection, the cryogenic pump is connected by the gas outlet of third valve and third pipeline and vacuum cavity
It connects, the gas outlet of cryogenic pump is connect by the 4th pipeline and the 4th valve with the secondary air accumulator；The primary gas storage
Tank is inflated by first pipe and the first valve into porous gas separation chamber, and the pumping unit passes through second pipe and the
Porous gas is separated indoor gas and shifted to primary air accumulator by two valves, so that porous gas is separated indoor air pressure and is maintained at
Specified atmospheric pressure value, the cryogenic pump are extracted from porous gas out of vacuum cavity by third valve and third pipeline and are separated
The gas of room leakage, the cryogenic pump are risen again after tail gas separation, and control low temperature pump temperature is risen again to the boiling point of deuterium,
Then cryogenic pump can only discharge the deuterium of absorption, and the gas of release is arranged by the 4th valve and the 4th pipeline to secondary air accumulator
It puts, completes gas separation and purification.
The porous gas separation chamber is the cylindrical chamber that a kind of surrounding is full of Kong Zhen, and porous gas separation chamber upper end is set
There is flange two, two upper end of flange is connected with the air inlet of porous gas separation chamber and bleeding point respectively there are two opening.
Vacuum gauge is installed on the vacuum cavity.
The porous gas separation chamber is the cylindrical chamber that a kind of surrounding is full of 1mm or so Kong Zhen, and flange upper end has
Two openings, are connected by valve with air inlet and bleeding point respectively, and entire porous gas separation chamber then passes through flange under
The vacuum cavity in face connects, and entire porous gas separation chamber is nested in vacuum cavity.According to aerial drainage principle, it is in porous gas
The micro-molecular gas (mainly deuterium) of mixed gas in separation chamber can enter vacuum cavity by aperture to by cryogenic pump
It absorbs, and macromolecular gas then stays in porous gas separation chamber and draws back primary air accumulator by pumping unit.
The cryogenic pump closes the intake valve between vacuum cavity after vent gas treatment, opens by-passing valve, leads to
The regeneration temperature for crossing control system control cryogenic pump, maintains it near boiling point of deuterium, then can guarantee only deuterium quilt
It is discharged into secondary air accumulator.
The invention has the advantages that (1) present invention carries out what tail gas was automatically separated using aerial drainage principle, aperture appropriate is selected
Size and working gas pressure appropriate separate indoor mixed gas, due to aerial drainage effect, small mass number in porous gas
Molecule is easy to flow out from aperture, and the big gas molecule of mass number is not easy to flow out, therefore the big quality of the realization that can be convenient
Number molecules and small mass number molecule efficiently separate.
(2) present invention employs two-stage separating-purifying means, use porous separation chamber's Technology of Auto Separation first for the first time
It realizes being automatically separated for size mass number molecule, realizes the essence of deuterium by accurately controlling the regeneration temperature of cryogenic pump for the second time
True recycling of rising again, can largely improve the purity of deuterium.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Specific embodiment
As shown in Figure 1, the tail gas on a kind of superconducting tokamak device extract system is automatically separated purification system, include
Primary air accumulator 1, secondary air accumulator 2, pumping unit 3, cryogenic pump 4, porous gas separation chamber 5 and vacuum cavity 6, described is first
The gas outlet of grade air accumulator 1 is connect by first pipe 7 and the first valve 8 with the air inlet of the porous gas separation chamber 5,
The end of first pipe 7 extend into the bottom of porous gas separation chamber 5, and the bleeding point of porous gas separation chamber 5 passes through the second valve
Door 9, second pipe 10 and pumping unit 3 are connect with the air inlet of primary air accumulator 1, and the porous gas separation chamber 5 is nested
It is connect in vacuum cavity 6 and through flange one with following vacuum cavity 6, the air inlet of the cryogenic pump 4 passes through third
Valve 11 and third pipeline 12 are connect with the gas outlet of vacuum cavity 6, and the gas outlet of cryogenic pump 4 passes through the 4th pipeline 13 and the 4th
Valve 14 is connect with the secondary air accumulator 2；The primary air accumulator 1 is by first pipe 7 and the first valve 8 to porous
Inflation in gas separation chamber 5, the pumping unit 3 is by second pipe 10 and the second valve 9 in porous gas separation chamber 5
Gas shifted to primary air accumulator 1, so that the air pressure in porous gas separation chamber 5 is maintained at specified atmospheric pressure value, described is low
Temperature pump extracts the gas revealed from porous gas separation chamber 5, institute by third valve 11 and third pipeline 12 out of vacuum cavity 6
The cryogenic pump 4 stated is risen again after tail gas separation, and control low temperature pump temperature is risen again to the boiling point of deuterium, then cryogenic pump only understands handle
The deuterium of absorption discharges, and the gas of release is discharged by the 4th valve and the 4th pipeline to secondary air accumulator, completes gas point
From and purification.
The porous gas separation chamber 5 is the cylindrical chamber that a kind of surrounding is full of Kong Zhen, porous gas separation chamber upper end
Equipped with flange two, two upper end of flange is connected with the air inlet of porous gas separation chamber and bleeding point respectively there are two opening.
Vacuum gauge 15 is installed on the vacuum cavity 6.
The porous gas separation chamber is the cylindrical chamber that a kind of surrounding is full of 1mm or so Kong Zhen, and flange upper end has
Two openings, are connected by valve with air inlet and bleeding point respectively, and entire porous gas separation chamber then passes through flange under
The vacuum cavity in face connects, and entire porous gas separation chamber is nested in vacuum cavity.According to aerial drainage principle, it is in porous gas
The micro-molecular gas (mainly deuterium) of mixed gas in separation chamber can enter vacuum cavity by aperture to by cryogenic pump
It absorbs, and macromolecular gas then stays in porous gas separation chamber and draws back primary air accumulator by pumping unit.
The cryogenic pump closes the intake valve between vacuum cavity after vent gas treatment, opens by-passing valve, leads to
The regeneration temperature for crossing control system control cryogenic pump, maintains it near boiling point of deuterium, then can guarantee only deuterium quilt
It is discharged into secondary air accumulator.
Claims (3)
1. the tail gas on a kind of superconducting tokamak device extract system is automatically separated purification system, include primary air accumulator,
Secondary air accumulator, pumping unit, cryogenic pump, porous gas separation chamber and vacuum cavity, it is characterised in that: the primary gas storage
The gas outlet of tank is connect by first pipe and the first valve with the air inlet of the porous gas separation chamber, first pipe
End extend into the bottom of porous gas separation chamber, the bleeding point of porous gas separation chamber by the second valve, second pipe and
Pumping unit is connect with the air inlet of primary air accumulator, and the porous gas separation chamber is nested in vacuum cavity and passes through method
Vacuum cavity connection below Lan Yiyu, the air inlet of the cryogenic pump pass through third valve and third pipeline and vacuum cavity
Gas outlet connection, the gas outlet of cryogenic pump is connect by the 4th pipeline and the 4th valve with the secondary air accumulator；It is described
Primary air accumulator inflated by first pipe and the first valve into porous gas separation chamber, the pumping unit passes through the
Porous gas is separated indoor gas and shifted to primary air accumulator by two pipelines and the second valve, keeps porous gas separation indoor
Air pressure is maintained at specified atmospheric pressure value, and the cryogenic pump is extracted out of vacuum cavity from more by third valve and third pipeline
The gas of hole gas separation chamber leakage, the cryogenic pump rises again after tail gas separation, control low temperature pump temperature rise again to
The boiling point of deuterium, then cryogenic pump can only discharge the deuterium of absorption, the gas of release by the 4th valve and the 4th pipeline to
Secondary air accumulator discharge, completes gas separation and purification.
2. the tail gas on a kind of superconducting tokamak device extract system according to claim 1 is automatically separated purification system
System, it is characterised in that: the porous gas separation chamber is the cylindrical chamber that a kind of surrounding is full of Kong Zhen, porous gas separation chamber
Upper end is equipped with flange two, and two upper end of flange is connected with the air inlet of porous gas separation chamber and bleeding point respectively there are two opening.
3. the tail gas on a kind of superconducting tokamak device extract system according to claim 1 is automatically separated purification system
System, it is characterised in that: be equipped with vacuum gauge on the vacuum cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910155018.1A CN109824014A (en) | 2019-03-01 | 2019-03-01 | Tail gas on superconducting tokamak device extract system is automatically separated purification system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910155018.1A CN109824014A (en) | 2019-03-01 | 2019-03-01 | Tail gas on superconducting tokamak device extract system is automatically separated purification system |
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| CN109824014A true CN109824014A (en) | 2019-05-31 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110767325A (en) * | 2019-10-31 | 2020-02-07 | 中国科学院合肥物质科学研究院 | Method for realizing fusion reactor plasma core charging by using sandwich shot |
| CN112530606A (en) * | 2020-11-11 | 2021-03-19 | 核工业西南物理研究院 | Automatic impurity gas accelerated mixing system and gas accelerated mixing control method |
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| CN101618292A (en) * | 2008-11-10 | 2010-01-06 | 李元胜 | System for comprehensive utilization of three industrial wastes |
| CN108939921A (en) * | 2018-09-05 | 2018-12-07 | 清华大学 | Membrane separation device and method for carbon isotope separation |
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2019
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101618292A (en) * | 2008-11-10 | 2010-01-06 | 李元胜 | System for comprehensive utilization of three industrial wastes |
| CN108939921A (en) * | 2018-09-05 | 2018-12-07 | 清华大学 | Membrane separation device and method for carbon isotope separation |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110767325A (en) * | 2019-10-31 | 2020-02-07 | 中国科学院合肥物质科学研究院 | Method for realizing fusion reactor plasma core charging by using sandwich shot |
| CN112530606A (en) * | 2020-11-11 | 2021-03-19 | 核工业西南物理研究院 | Automatic impurity gas accelerated mixing system and gas accelerated mixing control method |
| CN112530606B (en) * | 2020-11-11 | 2022-07-26 | 核工业西南物理研究院 | Automatic impurity gas accelerated mixing system and gas accelerated mixing control method |
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