CN101174479A - Sodium-cooled fast reactor argon gas distribution system - Google Patents
Sodium-cooled fast reactor argon gas distribution system Download PDFInfo
- Publication number
- CN101174479A CN101174479A CNA2007101950209A CN200710195020A CN101174479A CN 101174479 A CN101174479 A CN 101174479A CN A2007101950209 A CNA2007101950209 A CN A2007101950209A CN 200710195020 A CN200710195020 A CN 200710195020A CN 101174479 A CN101174479 A CN 101174479A
- Authority
- CN
- China
- Prior art keywords
- sodium
- argon
- argon gas
- fast reactor
- cooled fast
- Prior art date
- 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.)
- Granted
Links
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 title claims abstract description 96
- 229910052786 argon Inorganic materials 0.000 title claims abstract description 48
- 239000007789 gas Substances 0.000 title claims abstract description 41
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims abstract description 50
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 50
- 239000011734 sodium Substances 0.000 claims abstract description 50
- 238000013461 design Methods 0.000 claims description 9
- 238000012546 transfer Methods 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 abstract 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 12
- 229910052757 nitrogen Inorganic materials 0.000 description 6
- KEAYESYHFKHZAL-UHFFFAOYSA-N Sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 229910052734 helium Inorganic materials 0.000 description 3
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 3
- 239000011261 inert gas Substances 0.000 description 3
- 239000001307 helium Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 241000233805 Phoenix Species 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- UBAZGMLMVVQSCD-UHFFFAOYSA-N carbon dioxide;molecular oxygen Chemical compound O=O.O=C=O UBAZGMLMVVQSCD-UHFFFAOYSA-N 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- YGANSGVIUGARFR-UHFFFAOYSA-N dipotassium dioxosilane oxo(oxoalumanyloxy)alumane oxygen(2-) Chemical compound [O--].[K+].[K+].O=[Si]=O.O=[Al]O[Al]=O YGANSGVIUGARFR-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004868 gas analysis Methods 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052627 muscovite Inorganic materials 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Images
Classifications
-
- 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
- Y02E30/30—Nuclear fission reactors
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Structure Of Emergency Protection For Nuclear Reactors (AREA)
Abstract
The invention discloses an argon distribution system for a sodium-cooled fast reactor. The system mainly comprises an argon distribution tank, a sodium vapor trap and other equipment. Safety valves are arranged on the argon distribution tank and the main pipeline; an electric exhaust valve is arranged on a pipeline of the sodium vapor trap and is interlocked with a pressure remote transmission signal of a sodium user; the system also leaves an interface (3) with the vacuum system. The system can effectively provide argon gas required by a user, thereby protecting the metallic sodium in the first loop and the second loop.
Description
Technical field
The invention belongs to the sodium-cooled fast reactor technical field, be specifically related to the argon distributing system that a kind of sodium-cooled fast reactor is used.
Background technology
Because sodium-cooled fast reactor adopts liquid metal sodium as catalyst carrier; and sodium metal can promptly react with airborne oxygen, carbon dioxide and moisture, therefore must charge into inert gas and as blanketing gas the sodium metal in the loop be implemented protection in circuit system.The kind of inert gas is a lot, as helium, argon gas or nitrogen.At the initial stage of sodium technical development, because economic cause, nitrogen once was used as blanketing gas, found afterwards that nitrogen can cause structured material to produce harmful effect, for example at document R.C.Werner, The Use of ImpureInert Gas With Sodium, USA-EC file No.Np-6062, Mine Safety Appliance Co, Apr.14, once mentioned impure nitrogen in 1955 and can make austenite and ferritic stainless steel nitrogenize occur, and nitrogen and lithium reaction under the condition of high temperature, this uncertainty has limited uses nitrogen as blanketing gas in high-temperature systems.And the costing an arm and a leg of helium, the helium atom size is little buoyancy again, leaks easily.Consider above-mentioned factor, sodium system brings into use the inert gas argon gas as blanketing gas.Manjusri's heap (Monju) of the phoenix of France heap (Phenix), Muscovite BN-600, Japan all is to adopt the blanketing gas of argon gas as sodium metal at present, but they do not disclose the design parameter and the concrete equipment layout thereof of this system.
Summary of the invention
The present invention is directed to the needs of sodium-cooled fast reactor, a kind of easy, practical argon distributing system is provided.
A kind of argon distributing system of sodium-cooled fast reactor mainly is made of equipment such as argon gas distribution tank, sodium vapour traps, and the argon gas distribution tank links to each other with sodium vapour trap by the pipeline that various valves, instrument are housed, and sodium vapour trap links to each other with the user.Key is, on argon gas distribution tank and trunk line safety valve is housed; The electric-powered air release valve door is housed on the pipeline of sodium vapour trap, and it and sodium user's pressure remote transfer signal is chain; Native system also leaves the interface with vacuum system.
Because native system is equipped with safety valve on argon gas distribution tank and trunk line, when pressure surpasses a certain value, the automatic take-off of safety valve, pressure release rapidly prevents that sodium user air cavity pressure from surpassing permissible value.The electric-powered air release valve door is housed on the pipeline of sodium vapour trap, and chain with sodium user's pressure remote transfer signal, can guarantee system and user's safety in time to system's release.Simultaneously, native system also leaves the interface with vacuum system, can guarantee the quality of blanketing gas effectively.
Description of drawings
Fig. 1 argon distributing system of sodium-cooled fast reactor structural representation.
Embodiment
Below in conjunction with accompanying drawing, technical scheme of the present invention is further elaborated.
A kind of argon distributing system of sodium-cooled fast reactor, major equipment have argon gas distribution tank 1, sodium vapour trap 5, various model valve and pipeline.Wherein argon gas distribution tank 1 is a post shapes, and its design pressure, design temperature, volume are decided according to user's needs, and the used design pressure of present embodiment is 1~1.2MPa, and design temperature is 40~100 ℃, and volume is 8~12m
3Before sodium vapour trap 5 was arranged on user's air intake opening, it adopted pressurized air to walk outer tube, and the argon gas that contains sodium steam is walked the bushing type reverse heat-exchange mode of interior pipe.When the user advances sodium, rising along with the sodium liquid level, can produce a certain amount of sodium steam, for preventing that sodium steam from stopping up the argon gas valve, need to open compressed air system, method by cooling makes the stainless steel wire that sodium steam condenses in the sodium vapour trap 5 in the argon gas online, and the sodium that condensation is got off then is back to the user by the heating of the electrical heating wire on the sodium vapour trap 5 back fusing.The design pressure of the used sodium vapour trap 5 of present embodiment is 0.6~0.8MPa, 420~480 ℃ of design temperatures.Simultaneously, surpass permissible value, safety valve 2 is housed on argon gas distribution tank 1 and trunk line in order to prevent sodium user air cavity pressure, when pressure surpasses a certain value, safety valve 2 automatic take-offs, pressure release rapidly; Electric-powered air release valve door 4 is housed on the pipeline of sodium vapour trap 5, with and chain with sodium user's pressure remote transfer signal.Because sodium-cooled fast reactor is very high to the quality requirements of blanketing gas, native system also leaves the interface with vacuum system for this reason.Native system also leaves and gas sample and on-line analysis system interface 3, can carry out gas analysis to the blanketing gas in the sodium equipment at any time, guarantees the quality of argon gas.
The argon distributing system of sodium-cooled fast reactor that present embodiment provided can be effectively for the user provides required argon gas, thereby the sodium metal to, in the secondary circuit is implemented protection.The fresh argon gas that is provided from the argon gas receiving system is provided for the argon gas distribution tank of native system, stores and distributes argon gas to each user's equipment and pipeline.To user's air feed is to realize that by the electric control valve on each bar air supply channel electric control valve has pressure control device, comes the aperture of control valve by the downstream pressure value, thereby reaches the effect of steady pressure.Before filling sodium and begin at the reactor start-up initial stage, native system can guarantee one, be full of argon gas in the pipeline of secondary sodium system and the equipment, and argon gas is provided for during advancing sodium the sodium cask, utilizes argon pressure that sodium is pressed onto in the secondary circuit storage sodium jar swimmingly.In filling the sodium process, native system can guarantee the compensation of sodium user's air cavity, and remedy one during shutdown, the loss of secondary coolant circuit system and equipment argon gas during because of its normal operation and maintenance.When the reactor normal power moved, this system also can carry out gas make-up to the user.After argon pressure reaches requirement in the subscriber equipment, the stop valve between shutdown system and user, the user that argon distributing system and it are served disconnects, and argon system is finished the air feed to the user.When the blanketing gas pressure of sodium user heating raises and when surpassing limit value, vent valve that can be by system with gaseous emission to the display system or normally exhaust system carry out pressure release.
Claims (5)
1. argon distributing system of sodium-cooled fast reactor, mainly constitute by argon gas distribution tank (1), sodium vapour trap equipment such as (5), argon gas distribution tank (1) links to each other with sodium vapour trap (5) by the pipeline that various valves, instrument are housed, sodium vapour trap (5) links to each other with the user, it is characterized in that: safety valve (2) is housed on argon gas distribution tank (1) and trunk line; Electric-powered air release valve door (4) is housed on the pipeline of sodium vapour trap (5), and it and sodium user's pressure remote transfer signal is chain; Native system also leaves the interface (3) with vacuum system.
2. argon distributing system of sodium-cooled fast reactor according to claim 1 is characterized in that: the design pressure of described argon gas distribution tank (1) is 1~1.2MPa, and design temperature is 40~100 ℃, and volume is 8~12m
3
3. argon distributing system of sodium-cooled fast reactor according to claim 1 is characterized in that: described sodium vapour trap (5) adopts pressurized air to walk outer tube, and the argon gas that contains sodium steam is walked the bushing type reverse heat-exchange mode of interior pipe.
4. argon distributing system of sodium-cooled fast reactor according to claim 3 is characterized in that: electric-powered air release valve door (4) is housed on the pipeline of described sodium vapour trap (5), with and chain with sodium user's pressure remote transfer signal.
5. argon distributing system of sodium-cooled fast reactor according to claim 1 is characterized in that: described system leaves the interface (3) with vacuum system.
Priority Applications (1)
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CN2007101950209A CN101174479B (en) | 2007-12-11 | 2007-12-11 | Sodium-cooled fast reactor argon gas distribution system |
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CN2007101950209A CN101174479B (en) | 2007-12-11 | 2007-12-11 | Sodium-cooled fast reactor argon gas distribution system |
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CN101174479A true CN101174479A (en) | 2008-05-07 |
CN101174479B CN101174479B (en) | 2011-09-14 |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102254577A (en) * | 2011-06-30 | 2011-11-23 | 西安交通大学 | Liquid sodium metal thermohydraulic experimental loop system and using method thereof |
CN102913747A (en) * | 2011-08-03 | 2013-02-06 | 无锡华润上华科技有限公司 | Gas cabinet control device |
CN103238186A (en) * | 2010-10-04 | 2013-08-07 | 原子能和替代能源委员会 | Integrated sodium-cooled fast nuclear reactor |
CN108305694A (en) * | 2017-12-20 | 2018-07-20 | 中国原子能科学研究院 | A kind of burst disc replacement technique for liquid metal sodium environment |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN201126711Y (en) * | 2007-12-11 | 2008-10-01 | 中国原子能科学研究院 | System for distributing argon of natrium cold fast reactor |
-
2007
- 2007-12-11 CN CN2007101950209A patent/CN101174479B/en active Active
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103238186A (en) * | 2010-10-04 | 2013-08-07 | 原子能和替代能源委员会 | Integrated sodium-cooled fast nuclear reactor |
CN102254577A (en) * | 2011-06-30 | 2011-11-23 | 西安交通大学 | Liquid sodium metal thermohydraulic experimental loop system and using method thereof |
CN102254577B (en) * | 2011-06-30 | 2013-05-22 | 西安交通大学 | Liquid sodium metal thermohydraulic experimental loop system and using method thereof |
CN102913747A (en) * | 2011-08-03 | 2013-02-06 | 无锡华润上华科技有限公司 | Gas cabinet control device |
CN102913747B (en) * | 2011-08-03 | 2014-12-10 | 无锡华润上华科技有限公司 | Gas cabinet control device |
CN108305694A (en) * | 2017-12-20 | 2018-07-20 | 中国原子能科学研究院 | A kind of burst disc replacement technique for liquid metal sodium environment |
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CN101174479B (en) | 2011-09-14 |
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