CN102358618A - Gas-liquid exchange type liquid lithium lead alloy bubbler - Google Patents
Gas-liquid exchange type liquid lithium lead alloy bubbler Download PDFInfo
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- CN102358618A CN102358618A CN2011101840188A CN201110184018A CN102358618A CN 102358618 A CN102358618 A CN 102358618A CN 2011101840188 A CN2011101840188 A CN 2011101840188A CN 201110184018 A CN201110184018 A CN 201110184018A CN 102358618 A CN102358618 A CN 102358618A
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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
Abstract
The present invention discloses a gas-liquid exchange type liquid lithium lead alloy bubbler, and belongs to the technical field of a fusion reactor liquid cladding. The gas-liquid exchange type liquid lithium-lead alloy bubbler comprises two parts of a main circuit system and an assistant system. The main circuit system comprises a lithium lead saturator, a filler tower, a lithium lead collector, a gas circuit and a liquid flowing path. The assistant system comprises a measurement-control system and a vacuum system. According to the gas-liquid exchange type liquid lithium lead alloy bubbler of the present invention, the filler tower is arranged; after passing through a porous diffuser, the hydrogen isotope-saturated lithium lead alloy melt flows through a stainless steel filler from top to bottom, and exchanges with belt-carried gas, wherein the belt-carried gas flows through the stainless steel filler from bottom to top; the extraction effect of the hydrogen isotope is significant; the solubility measurement of the hydrogen isotope in the liquid lithium lead is accurate; the high temperature sealing performance is good; the case of plugging due to impurities is not easily generated.
Description
Technical field
The invention belongs to the liquid cladding technique of fusion reactor field, be specifically related to a kind of gas-liquid switch type liquid lithium LY bubbler.
Background technology
Fusion reactor is one of the most rising energy resource system, and the international thermonuclear fusion experimental reactor (ITER) of nowadays European Union, U.S.A, day, Russia, seal, Korea Spro, medium multinational cooperation is exactly a representative progress sign.The difunctional liquid lithium plumbous test covering (DFLL-TBM) that China participates in is made earnest efforts one of covering scheme of considering at present.One of characteristics of DFLL-TBM are tritium breeding ratio (TBR) height, can adopt helium-hydrogen blistering device mode from liquid lithium lead, to extract tritium.Tritium processing unit as one of DFLL-TBM important composition; Be arranged on the branch road of covering master loop; Prop up the plumbous share of lithium of pass 10% left and right sides flow, its major function is from the bubbler device, to extract tritium continuously through purge gas carrier distillation method, through the monitoring to operating parameters such as temperature, pressure, gas ingredients-flow, tritium concentrations; Valid data such as producing tritium amount, tritium extraction rate are provided, thus the safety of check tritium treatment process.The tritium processing unit is made up of two portions: the one, be arranged in the bubbler (LLLB) of transport trolley; The 2nd, be arranged in the tritium extraction system (TES) of tritium factory.
External achievement in research shows that the method for from liquid lithium lead, extracting the operate continuously of tritium mainly contains four kinds: the one, and the membrane permeation method of the U.S.; The 2nd, the intermediate heat medium channel of Japan is set up the cold-trap method; The 3rd, Muscovite spray method; The 4th, the bubbling packed column method of France.Most popular, the most successful at present is the 4th kind of method, but also has technical barriers such as with high costs, that sampling is difficult, measuring process is loaded down with trivial details.
Because do not have the corresponding demand traction, domestic extractive technique to tritium in the Li-Pb alloy is not carried out any research as yet, only carried out partly and worked at aspects such as Li-Pb alloy performance, material corrosion, equipment research and development.Western countries carry out strict control to China aspect sensitive technologies such as tritium, also do not having the related data reference aspect the tritium multiplication agent material technology.
Summary of the invention
For the deficiency that cost is high, sampling is difficult, measuring process is loaded down with trivial details that overcomes bubbler in the prior art, the present invention provides a kind of gas-liquid switch type liquid lithium LY bubbler, can realize the continuous extraction of hydrogen isotopes gas in the liquid lithium LY.
Gas-liquid switch type liquid lithium LY bubbler of the present invention is characterized in that described bubbler contains primary heat transport system and subsystem two portions; Primary heat transport system comprises the plumbous saturex of lithium, packing tower, the plumbous scoop of lithium, gas return path and liquid stream, and wherein liquid stream comprises the plumbous electromagnetic pump of high-temperature pipe, high-temperature valve and lithium.Subsystem comprises temperature control instrument and vacuum pump.The top of said primary heat transport system is provided with the plumbous saturex of lithium, and packing tower is arranged at the middle part of primary heat transport system, the bottom that the plumbous scoop of lithium is arranged at.The bottom of the plumbous saturex of lithium is connected with the packing tower top through first high-temperature valve; The bottom of packing tower is connected through the top of second high-temperature valve with the plumbous scoop of lithium; Be arranged on and be disposed with porous decollator, column plate, gas inducting device in the tower reactor in the packing tower, Stainless Steel Helices places on the column plate, is equipped with two well heaters in the outer periphery of packing tower.The bottom of the plumbous scoop of lithium is successively through being connected with the top of the plumbous saturex of lithium behind the 3rd high-temperature valve, the plumbous electromagnetic pump of lithium.All connect between the plumbous saturex of lithium, packing tower, the plumbous scoop of lithium through high-temperature pipe; The gas return path of being made up of three loops is arranged at a side of primary heat transport system; Hydrogen cylinder in the gas return path is connected with the plumbous saturex of lithium top; Argon bottle is connected with the top of the plumbous saturex of lithium, the top of the plumbous scoop of lithium respectively, and helium tank is connected with the packing tower bottom through the distribution jar.Temperature control instrument and vacuum pump are arranged at the opposite side of primary heat transport system.Described temperature control instrument respectively with the plumbous saturex of lithium in the peripheral plumbous scoop of two well heaters, lithium of primary heater, packing tower in the 3rd well heater be connected.Described vacuum pump is connected with the plumbous saturex of lithium, packing tower, the plumbous scoop of lithium respectively.
The present invention theoretically, plumbous solution-air two processes of contacting of hydrogen isotopes and liquid lithium are following content, diffusion and the convection current of hydrogen isotopes in molten alloy; Hydrogen isotopes is through the diffusion of the alloy layer that links to each other with liquid-vapo(u)r interface; The heterogeneous reaction of hydrogen isotopes atom reorganization takes place at the interface; Hydrogen isotopes is through the diffusion of gas phase boundary; The diffusion of the hydrogen isotopes in the gas phase and convection current.To under the operational condition of differing temps, hydrogen isotopes dividing potential drop, helium flow amount, the kinetics release behavior of hydrogen isotopes from liquid lithium lead carried out mathematical simulation.Calculating shows: in the TR of 633K-723K, the whole dispose procedure of hydrogen isotopes from liquid lithium lead to gas phase is hydrogen (or deuterium, the tritium) diffusion of atom in alloy and result in the reorganization of liquid-vapo(u)r interface generation heterogeneous reaction.When the He flow increases; Hydrogen isotopes dividing potential drop under the differing temps is tending towards reducing with consistent, and the diffusion dissolution in this explanation liquid phase is insoluble relatively, in other words; The gentle alternate resistance to mass transfer on liquid phase surface is very little with diffusing into that resistance that wall moves the liquid phase layer compares.Theoretic explanation possibly be the alloy layer wall moire effect and helium shock effect comprehensive action and cause the increase of solution-air contact surface.
The plumbous saturex of lithium among the present invention is positioned at the upper end of primary heat transport system, and its bottom is connected with the packing tower top through high-temperature pipe, and its function is for packing tower hydrogeneous isotopic Li-Pb alloy to be provided.Packing tower is positioned at the middle part of primary heat transport system, is core component, and its function is to realize carrier band gas and the plumbous countercurrent exchange of liquid lithium.The bottom of the plumbous scoop of lithium is connected with the top of the plumbous saturex of lithium through high-temperature pipe and the plumbous electromagnetic pump of lithium, and its function is the Li-Pb alloy after the solution-air exchange test is accomplished in collection, promptly accepts the discharging of operation back liquid lithium lead.Gas return path is positioned at a side of primary heat transport system; Its function is to provide for packing tower high-purity carrier band gas of solution-air exchange; Realize the saturated of hydrogen isotopes in the liquid lithium lead, process auxiliary drive liquid lithium lead flows the composition of sampling analysis hydrogen isotopes-carrier band gas mixture in master loop.Liquid stream connects into closed stream with the plumbous saturex of lithium, packing tower and the plumbous scoop of lithium, and its function is to ensure flowing smoothly of liquid lithium LY.Temperature control instrument and vacuum pump all are positioned at a side of primary heat transport system, and its function provides required temperature and the vacuum tightness of gas-liquid switch type liquid lithium LY bubbler.
The invention has the beneficial effects as follows that gas-liquid switch type liquid lithium LY bubbler is provided with packing tower, the Li-Pb alloy melt after hydrogen isotopes is saturated is behind the porous decollator; The Stainless Steel Helices of flowing through from top to bottom; Exchange with carrier band gas from bottom to top, the hydrogen isotopes extraction effect is obvious, and the solubleness of hydrogen isotopes in liquid lithium lead is measured accurately; Elevated-temperature seal is functional, and impurity is difficult for stopping up.
Description of drawings
Fig. 1 is the structural representation of gas-liquid switch type liquid lithium LY bubbler of the present invention.
Among the figure, 1. plumbous electromagnetic pump 9. serpentine coolers of the plumbous scoop 4. transmitter I of plumbous saturex 2. packing towers of lithium 3. lithiums 5. first high-temperature valves 6. porous decollators, 7. gas inducting devices, 8. lithiums 10. compression pumps 11. gas sampling jars 12. distribution jars 13. gas meters 14. vacuum pumps 15. temperature control instruments 16. primary heaters 17. column plates 18. hydrogen cylinders 19. argon bottles 20. helium tanks 21. secondary heaters 23. the 3rd well heater 24. second high-temperature valves 25. the 3rd high-temperature valve 26. transmitter II.
Embodiment
Below in conjunction with accompanying drawing content of the present invention is done further detailed explanation.
Fig. 1 is the structural representation of gas-liquid switch type liquid lithium LY bubbler of the present invention.A kind of gas-liquid switch type liquid lithium LY bubbler of the present invention contains primary heat transport system and subsystem two portions among Fig. 1; Primary heat transport system comprises the plumbous saturex 1 of lithium, packing tower 2, the plumbous scoop 3 of lithium, gas return path and liquid stream, and wherein liquid stream comprises the plumbous electromagnetic pump 8 of high-temperature pipe, high-temperature valve and lithium; Subsystem comprises temperature control instrument 15 and vacuum pump 14.The top of said primary heat transport system is provided with the plumbous saturex 1 of lithium, and packing tower 2 is arranged at the middle part of primary heat transport system, and the plumbous scoop 3 of lithium is arranged at the primary heat transport system bottom.In the plumbous saturex 1 of lithium, be provided with primary heater 16 and transmitter I4.The bottom of the plumbous saturex 1 of lithium is connected with packing tower 2 tops through first high-temperature valve 5; The bottom of packing tower 2 is connected through the top of second high-temperature valve 24 with the plumbous scoop 3 of lithium.Be arranged on and be disposed with porous decollator 6, column plate 17, gas inducting device 7 in the tower reactor in the packing tower 2, Stainless Steel Helices places on the column plate 17, is equipped with two well heaters in the outer periphery of packing tower, and secondary heater 21 is one of them.Packing tower 2 also is connected with serpentine cooler 9, compression pump 10, gas sampling jar 11 successively.Be provided with the 3rd well heater 23, transmitter II 26 in the plumbous scoop 3 of lithium, the bottom of the plumbous scoop 3 of lithium is connected with the top of lithium lead saturex 1 through the 3rd high-temperature valve 25, the plumbous electromagnetic pump of lithium 8 backs successively; All connect between the plumbous saturex 1 of lithium, packing tower 2, the plumbous scoop 3 of lithium through high-temperature pipe; The gas return path of being made up of three loops is arranged at a side of primary heat transport system; Hydrogen cylinder 18 in the gas return path is connected with the plumbous saturex of lithium 1 top; Argon bottle 19 is connected with the top of the plumbous saturex 1 of lithium, the top of the plumbous scoop 3 of lithium respectively, and helium tank 20 is connected with packing tower 2 bottoms through distribution jar 12, gas meter 13; Temperature control instrument and vacuum pump are arranged at the opposite side of primary heat transport system.
Described temperature control instrument respectively with the plumbous saturex 1 of lithium in primary heater 16, two well heaters in the packing tower 2, the plumbous scoop 3 of lithium in the 3rd well heater 23 be connected.
Described vacuum pump 14 is connected with the plumbous saturex 1 of lithium, packing tower 2, the plumbous scoop 3 of lithium respectively.
Concrete workflow of the present invention is: at first utilize vacuum pump 14 that primary heat transport system is vacuumized; Utilize primary heater 16 heating lithiums plumbous; In the plumbous saturex 1 of lithium, fill hydrogen with hydrogen cylinder 18 liquid towards Li-Pb alloys; The variation of transmitter I 4 monitoring hydrogen content in lithium lead reaches the required state of saturation of work respectively.Regulate the protection atmospheric pressure; Utilize the plumbous self gravitation of lithium; Open first high-temperature valve 5; Import packing tower 2 through high-temperature pipe with hydrogeneous isotopic liquid lithium is plumbous, after porous decollator 6, column plate 17 form liquid films, with 12 that come out from helium tank 20, distribution jar, carry out isotopic exchange and carrier band through gas meter 13, gas inducting device 7 upstream carrier band gas.The working temperature of packing tower 2 is by the peripheral secondary heater that is provided with 21 of packing tower and another well heater control.Liquid lithium after reaction finishes is plumbous to flow into the plumbous scoop 3 of lithium through the high-temperature pipe and second high-temperature valve 24; Treat to rely on again when the next round experiment needs the 3rd well heater 23 to reheat, return the plumbous saturex 1 of lithium through the 3rd high-temperature valve 25, high-temperature pipe, the plumbous electromagnetic pump 8 of lithium successively.The variation of hydrogen isotopes content in the plumbous scoop 3 of transmitter II 26 monitoring lithiums.After gas mixture after the exchange comes out from packing tower 2, behind serpentine cooler 9, compression pump 10, get into gas sampling jar 11 and carry out stratographic analysis.Calculate the exchange carrier band efficiency index of single-wheel and accumulative total, and change the plumbous melt temperatures of lithiums through temperature control instrument 15, and with pressure, carrier gas composition and flow, porous decollator 6 apertures and distribute as the parameter study object.Guarantee that all containers, valve and seal for pipe joints are functional, anti-sealing, carbonic acid gas, oxygen react with liquid lithium lead, utilize argon gas that argon bottle 19 provides as protecting gas.Whole primary heat transport system is fixed on the iron stand.
What deserves to be mentioned is that the present invention includes two kinds of situation in consideration: the one, the purification that lithium is plumbous.The separating out of impurity in the liquid lithium lead (being mainly dystectic lithium lead oxides) might cause the obstruction in duct in first high-temperature valve 5, second high-temperature valve 24, the 3rd high-temperature valve 25, or even the obstruction of high-temperature pipe.The purification style of taking under the existence conditions is to place the stainless steel filtering net at the import and export place, tackles dystectic lithium lead oxides; The 2nd, the content of C, S impurity in Fe, C, S impurity and the container in the strict control Li-Pb alloy.
Claims (3)
1. gas-liquid switch type liquid lithium LY bubbler, it is characterized in that: described bubbler contains primary heat transport system and subsystem two portions; Primary heat transport system comprises the plumbous saturex (1) of lithium, packing tower (2), the plumbous scoop (3) of lithium, gas return path and liquid stream, and wherein liquid stream comprises the plumbous electromagnetic pump (8) of high-temperature pipe, high-temperature valve and lithium; Subsystem comprises temperature control instrument (15) and vacuum pump (14); The top of said primary heat transport system is provided with the plumbous saturex (1) of lithium, and packing tower (2) is arranged at the middle part of primary heat transport system, and the plumbous scoop of lithium (3) is arranged at the bottom of primary heat transport system; The bottom of the plumbous saturex of lithium (1) is connected with packing tower (2) top through first high-temperature valve (5); The bottom of packing tower (2) is connected through the top of second high-temperature valve (24) with the plumbous scoop of lithium (3); Be arranged on and be disposed with porous decollator (6), column plate (17), gas inducting device (7) in the tower reactor in the packing tower (2), Stainless Steel Helices places on the column plate (17), is respectively arranged with two well heaters in the periphery of packing tower (2); The bottom of the plumbous scoop of lithium (3) is connected with the top of the plumbous saturex of lithium (1) through the 3rd high-temperature valve (25), the plumbous electromagnetic pump of lithium (8) back successively; All connect between the plumbous saturex (1) of lithium, packing tower (2), the plumbous scoop of lithium (3) through high-temperature pipe; The gas return path of being made up of three loops is arranged at a side of primary heat transport system; Hydrogen cylinder in the gas return path (18) is connected with the plumbous saturex (1) of lithium top; Argon bottle (19) is connected with the top of the plumbous saturex of lithium (1), the top of the plumbous scoop of lithium (3) respectively, and helium tank (20) is connected with packing tower (2) bottom through distribution jar (12); Temperature control instrument (15) and vacuum pump (14) are arranged at the opposite side of primary heat transport system.
2. according to claims 1 described gas-liquid switch type liquid lithium LY bubbler, it is characterized in that: described temperature control instrument (15) respectively with the plumbous saturex of lithium (1) in peripheral two well heaters that are provided with of primary heater (16), packing tower, the 3rd well heater (23) in the plumbous scoop of lithium (3) be connected.
3. according to claims 1 described gas-liquid switch type liquid lithium LY bubbler, it is characterized in that: described vacuum pump (14) is connected with the plumbous saturex (1) of lithium, packing tower (2), the plumbous scoop of lithium (3) respectively.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011101840188A CN102358618B (en) | 2011-07-04 | 2011-07-04 | Gas-liquid exchange type liquid lithium lead alloy bubbler |
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| CN2011101840188A CN102358618B (en) | 2011-07-04 | 2011-07-04 | Gas-liquid exchange type liquid lithium lead alloy bubbler |
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| CN102358618B CN102358618B (en) | 2013-04-03 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103439227A (en) * | 2013-09-09 | 2013-12-11 | 中国原子能科学研究院 | Liquid lithium lead compatibility static testing device |
| CN104891403A (en) * | 2015-04-16 | 2015-09-09 | 浙江大学台州研究院 | Suspension shock absorber shock absorption liquid vacuum filling system and suspension shock absorber shock absorption liquid vacuum filling method |
| CN105976872A (en) * | 2016-06-06 | 2016-09-28 | 中国工程物理研究院核物理与化学研究所 | Device for processing products of fusion-fission hybrid reactor fusion target chamber |
| CN108922636A (en) * | 2018-05-17 | 2018-11-30 | 安徽大学 | A kind of vacuum atomizing spiral nozzle device and method mentioning tritium online for fusion reactor liquid metal covering |
| WO2018227976A1 (en) * | 2017-06-16 | 2018-12-20 | 西南石油大学 | Helium gas experiment loop device for fusion reactor |
| CN109541674A (en) * | 2018-11-23 | 2019-03-29 | 中国科学院合肥物质科学研究院 | A kind of multi-stage vacuum screening plant and method suitable for fluent metal loop tritium On-line testing |
| CN112999869A (en) * | 2021-03-04 | 2021-06-22 | 中国人民解放军陆军炮兵防空兵学院 | Device and method for continuously extracting tritium from fusion reactor liquid metal lithium-lead alloy |
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| GB2040555A (en) * | 1978-11-21 | 1980-08-28 | Westinghouse Electric Corp | Gettering vacuum systems |
| CN101145407A (en) * | 2007-09-30 | 2008-03-19 | 中国科学院等离子体物理研究所 | Fusion reactor liquid metal hot convection experiment loop and experiment method |
| CN201637614U (en) * | 2010-04-02 | 2010-11-17 | 秦山第三核电有限公司 | Portable tritium bubble sampling device |
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2011
- 2011-07-04 CN CN2011101840188A patent/CN102358618B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| GB2040555A (en) * | 1978-11-21 | 1980-08-28 | Westinghouse Electric Corp | Gettering vacuum systems |
| CN101145407A (en) * | 2007-09-30 | 2008-03-19 | 中国科学院等离子体物理研究所 | Fusion reactor liquid metal hot convection experiment loop and experiment method |
| CN201637614U (en) * | 2010-04-02 | 2010-11-17 | 秦山第三核电有限公司 | Portable tritium bubble sampling device |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103439227A (en) * | 2013-09-09 | 2013-12-11 | 中国原子能科学研究院 | Liquid lithium lead compatibility static testing device |
| CN103439227B (en) * | 2013-09-09 | 2015-04-29 | 中国原子能科学研究院 | Liquid lithium lead compatibility static testing device |
| CN104891403A (en) * | 2015-04-16 | 2015-09-09 | 浙江大学台州研究院 | Suspension shock absorber shock absorption liquid vacuum filling system and suspension shock absorber shock absorption liquid vacuum filling method |
| CN104891403B (en) * | 2015-04-16 | 2017-01-18 | 浙江大学台州研究院 | Suspension shock absorber shock absorption liquid vacuum filling system and suspension shock absorber shock absorption liquid vacuum filling method |
| CN105976872A (en) * | 2016-06-06 | 2016-09-28 | 中国工程物理研究院核物理与化学研究所 | Device for processing products of fusion-fission hybrid reactor fusion target chamber |
| WO2018227976A1 (en) * | 2017-06-16 | 2018-12-20 | 西南石油大学 | Helium gas experiment loop device for fusion reactor |
| CN108922636A (en) * | 2018-05-17 | 2018-11-30 | 安徽大学 | A kind of vacuum atomizing spiral nozzle device and method mentioning tritium online for fusion reactor liquid metal covering |
| CN108922636B (en) * | 2018-05-17 | 2021-12-24 | 安徽大学 | Vacuum atomization spiral nozzle device and method for online tritium extraction of fusion reactor liquid metal cladding |
| CN109541674A (en) * | 2018-11-23 | 2019-03-29 | 中国科学院合肥物质科学研究院 | A kind of multi-stage vacuum screening plant and method suitable for fluent metal loop tritium On-line testing |
| CN112999869A (en) * | 2021-03-04 | 2021-06-22 | 中国人民解放军陆军炮兵防空兵学院 | Device and method for continuously extracting tritium from fusion reactor liquid metal lithium-lead alloy |
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