CN103000238A - System for removing particles in lead bismuth alloy - Google Patents
System for removing particles in lead bismuth alloy Download PDFInfo
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- CN103000238A CN103000238A CN2012104955671A CN201210495567A CN103000238A CN 103000238 A CN103000238 A CN 103000238A CN 2012104955671 A CN2012104955671 A CN 2012104955671A CN 201210495567 A CN201210495567 A CN 201210495567A CN 103000238 A CN103000238 A CN 103000238A
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- bismuth alloy
- lead bismuth
- remover
- particle
- coolant
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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
- Y02E30/30—Nuclear fission reactors
Abstract
The invention discloses a system for removing particles in a lead bismuth alloy, belonging to the technical fields of mechanical equipment and nuclear power safety. The system consists of three parts, namely a removing device, a refrigerant storage box and an electric pump, wherein the refrigerant storage box, the electric pump and the removing device form a circulating cooling loop; core equipment of the system is the particle removing device and structurally comprises a lower flange connecting piece, a box body and an upper connecting box from bottom to top; a particle removal channel and a cooling channel are distributed in the removing device; the upper part of the side wall of the removing device is provided with a lead bismuth alloy inlet; the lower part of the side wall of the removing device is provided with a lead bismuth alloy outlet; a certain distance is reserved between the outlet and the bottom; and the top of the upper connecting box is provided with a refrigerant outlet, and the bottom of a lower connecting box is provided with a refrigerant inlet. According to the device, the particles in the lead bismuth alloy can be removed, the purity of the lead bismuth alloy is guaranteed, and the safety of a reactor is guaranteed. The system is good in a particle removal effect, and the removing device is convenient to detach and easy to clean.
Description
Technical field
The invention belongs to plant equipment and Nuclear Safety technical field, particularly the removal system of particle in a kind of lead bismuth alloy.
Background technology
Nuclear power is the effective green energy resource of a kind of cleaning, and in world energy sources today day by day in short supply, the development of nuclear energy seems essential.But the nuke rubbish problem is the important restriction factor of nuclear energy sustainable development, is one and can not avoids the significant problem that must solve.In selectable fuel recycle mode, " separation-transmuting " strategy is more advanced, also is a trend of following fuel recycle.It is on the basis of recycling uranium and plutonium, further Minor actinides and long-lived fission product (such as iodine) is separated, and carries out transmuting at the transmuting device.And ADS is one of the most promising transmuting technology.
The lead bismuth alloy eutectic is important spallation target material and the cooling medium candidate material of ADS system, utilize the liquid lead bismuth alloy to hold concurrently cooling medium except having good neutronics performance as spallation target, also have good anti-radiation performance, heat transfer property and security feature, can improve the life-span of target system and the security of subcritical reactor.
But lead bismuth alloy easily causes oxidation corrosion to structure and pipeline material, forms a large amount of fine particles, can affect heat transfer, may stop up thin channel, and the safety of reactor is caused a series of hidden danger.For removing of particle, general consideration utilizes fly-ash separator to remove, difference according to principle of work, mainly contain gravity settling chamber, inertial dust separator, tornado dust collector, wet scrubber, electric precipitator and sack cleaner etc., but these fly-ash separators are poor for fine grain removal effect, and mainly be particulate matter removing for thermal power plant, at present also not for the ADS system, for the system that removes of particle in the lead bismuth alloy.Therefore, be necessary to seek the method that a kind of effectively simple safety removes particle, to guarantee the safety of nuclear power operation.
Summary of the invention
A kind of method of utilizing thermophoretic deposition and turbulence effect that the present invention be directed to that the lead bismuth alloy particle removes that the deficiency of technical elements proposes is removed the system of particle in the lead bismuth alloy.Utilize the lower cooling medium of temperature by the device of similar heat interchanger, form larger thermograde, make particle because thermophoretic deposition effect and turbulence effect are deposited in the removal system.
The removal system of particle in the lead bismuth alloy provided by the invention mainly is made of remover, coolant reservoir and three parts of electrodynamic pump;
Coolant reservoir and electrodynamic pump and remover consist of a circulation cooling circuit;
The nucleus equipment of described system is the particle remover, its structure is divided into lower flange web member, casing and three parts of upper header from the bottom to top, the distributed granule thing removes passage and cooling duct in remover, the remover side wall upper part arranges the lead bismuth alloy entrance, lower sidewall arranges the lead bismuth alloy outlet, leaves certain distance between lead bismuth alloy outlet and the remover bottom; The upper header top arranges coolant outlet, and the lower collecting box bottom arranges coolant entrance.
Further, preferred cooling medium flows into remover from coolant entrance, flows from bottom to top, forms larger thermograde by built-in pipeline and lead bismuth alloy, flows out from coolant outlet afterwards; Lead bismuth alloy then flows into remover from the lead bismuth alloy entrance, removes particle afterwards from lead bismuth alloy outlet outflow through thermophoretic effect and turbulence effect.
Described remover produces thermophoretic effect and turbulence effect and removes particle in the temperature gradient field of high temperature lead bismuth alloy and cooling medium formation.
Described flange connector can be dismantled, and is used for removing the particle of deposition.
Described removal system sets up two removers, and wherein a cover is redundant system.
Remover is connected with coolant reservoir by pipeline, an electrodynamic pump is set so that sufficient power to be provided in coolant circuit, in each remover both sides two valves are set, simultaneously in two removers connect the pipeline in plumbous bismuth loop, two valves are set, maintenance for convenience detach.
Beneficial effect of the present invention is: the removal system of particle is a kind of new device in a kind of lead bismuth alloy provided by the invention, can remove the particle in the lead bismuth alloy, guarantees the purity of lead bismuth alloy, guarantees reactor safety.The removal system particles removal effect of particle is good in the lead bismuth alloy provided by the invention, remover convenient disassembly, easily cleaning.This removal device is installed simple, convenient control, and be provided with redundancy, and continuing of can guaranteeing that particle removes carries out.
Description of drawings
Fig. 1 is the removal system composition diagram of particle in the lead bismuth alloy;
Fig. 2 is the described remover structural representation of invention;
Fig. 3 is the remover vertical view.
Number in the figure:
The 1-coolant entrance; The 2-coolant outlet; 3-lead bismuth alloy entrance; The outlet of 4-lead bismuth alloy; The 5-flange connector; 6,7,8,9,10,11-valve; The 12-electrodynamic pump; The 13-coolant reservoir; 14,15-remover; The 16-cooling medium replenishes changes pipeline.
Embodiment
The invention provides a kind of system that utilizes thermophoretic effect and turbulence effect to remove particle in the lead bismuth alloy, the present invention will be further described below in conjunction with accompanying drawing.
The removal system of particle in the lead bismuth alloy of present embodiment mainly is made of remover, coolant reservoir and three parts of electrodynamic pump;
The nucleus equipment of described system is the particle remover, its structure is divided into lower flange web member, casing and three parts of upper header from the bottom to top, the distributed granule thing removes passage and cooling duct in remover, the remover side wall upper part arranges lead bismuth alloy entrance 3, lower sidewall arranges lead bismuth alloy outlet 4, leaves certain distance between lead bismuth alloy outlet and the remover bottom; Upper header top 2 arranges coolant outlet, and lower collecting box bottom 1 arranges coolant entrance.
Described flange connector can be dismantled, and is used for removing the particle of deposition.
Described removal system sets up two to remove casees, and wherein a cover is redundant system.
Remover 14, remover 15 are connected with coolant reservoir 13 by pipeline, an electrodynamic pump 12 is set so that sufficient power to be provided in coolant circuit, two valves (valve 8, valve 10 and valve 9, valve 11) are set in each remover both sides, simultaneously in connecting the pipeline in plumbous bismuth loop, two removers two valves (valve 6 and valve 7) are set, maintenance for convenience detach.
According to system diagram, working-flow is: remover 14, remover 15 are installed in the bypass of cold leg of lead bismuth alloy, lead bismuth alloy enters remover through valve 6, in remover, utilize thermophoretic effect and turbulence effect that particle is removed, the lead bismuth alloy of removing particle flow back in the cold leg.In coolant circuit, the cooling medium in the storage bin 13 enters remover 14 through valve 10 under the driving of electrodynamic pump 12, then get back to coolant reservoir.Perhaps lead bismuth alloy enters remover through valve 7, in remover, utilizes thermophoretic effect and turbulence effect that particle is removed, and the lead bismuth alloy of removing particle flow back in the cold leg.In coolant circuit, the cooling medium in the storage bin 13 enters remover 15 through valve 11 under the driving of electrodynamic pump 12, then get back to coolant reservoir.
Cooling medium replenishes replacing pipeline 16 by cooling medium and changes additional.
The lead bismuth alloy side of related remover, lead bismuth alloy and particle enter remover from lead bismuth alloy entrance 3, and contact with the cooling duct, produce thermophoretic effect and turbulence effect, after particle here deposited, the height setting that exports owing to remover was blocked in the remover bottom.Lead bismuth alloy then can export 4 by lead bismuth alloy and flow out remover, and the particle that deposits can be pulled down bottom and remove when remover is not worked.
The coolant side of related remover, cooling medium enters by coolant entrance 1, flows through from each cooling duct, compiles from coolant outlet 2 at upper header and flows out.
In the related remover, cooling medium and lead bismuth alloy flow direction have two kinds of selections, one: cooling medium can enter remover from coolant entrance 1, flows out from coolant outlet 2; Its two, cooling medium also can enter remover from coolant outlet 2, flows out from coolant entrance 1.But optimal selection is front a kind of, makes the removal efficiency maximization by reversed flow.
The above; only for the better embodiment of the present invention, but protection scope of the present invention is not limited to this, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.
Claims (4)
1. the removal system of particle in the lead bismuth alloy, it is characterized in that: this removal system mainly is made of remover, coolant reservoir and three parts of electrodynamic pump;
Coolant reservoir (13) consists of a circulation cooling circuit with electrodynamic pump (12) and remover;
Described remover, its structure is divided into lower flange web member, casing and three parts of upper header from the bottom to top, the distributed granule thing removes passage and cooling duct in remover, the remover side wall upper part arranges lead bismuth alloy entrance (3), lower sidewall arranges lead bismuth alloy outlet (4), leaves certain distance between lead bismuth alloy outlet and the remover bottom; Upper header top (2) arranges coolant outlet, and lower collecting box bottom (1) arranges coolant entrance.
2. the removal system of particle in the lead bismuth alloy according to claim 1, it is characterized in that: described flange connector can be dismantled, and is used for removing the particle of deposition.
3. the removal system of particle in the lead bismuth alloy according to claim 1 is characterized in that: described removal system sets up two removers, and wherein a cover is redundant system.
4. the removal system of particle in the lead bismuth alloy according to claim 1, it is characterized in that: remover is connected with coolant reservoir (13) by pipeline, an electrodynamic pump (12) is set so that sufficient power to be provided in coolant circuit, in each remover both sides two valves are set, simultaneously in connecting the pipeline in plumbous bismuth loop, two removers two valves are set, maintenance for convenience detach.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210495567.1A CN103000238B (en) | 2012-11-28 | 2012-11-28 | The removal system of particle in a kind of lead bismuth alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210495567.1A CN103000238B (en) | 2012-11-28 | 2012-11-28 | The removal system of particle in a kind of lead bismuth alloy |
Publications (2)
| Publication Number | Publication Date |
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| CN103000238A true CN103000238A (en) | 2013-03-27 |
| CN103000238B CN103000238B (en) | 2016-04-06 |
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| CN201210495567.1A Expired - Fee Related CN103000238B (en) | 2012-11-28 | 2012-11-28 | The removal system of particle in a kind of lead bismuth alloy |
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| CN (1) | CN103000238B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105045990A (en) * | 2015-07-09 | 2015-11-11 | 华北电力大学 | Measuring and calculating method for physical property parameters of lead-bismuth eutectic alloy fluid and simulation system adopting method |
| CN107261714A (en) * | 2017-07-31 | 2017-10-20 | 盛志方 | A kind of fine particle thermophoretic deposition dust removal method and its system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105045990A (en) * | 2015-07-09 | 2015-11-11 | 华北电力大学 | Measuring and calculating method for physical property parameters of lead-bismuth eutectic alloy fluid and simulation system adopting method |
| CN105045990B (en) * | 2015-07-09 | 2018-07-24 | 华北电力大学 | The measuring method of lead bismuth eutectic alloy physical properties of fluids parameter and use its simulation system |
| CN107261714A (en) * | 2017-07-31 | 2017-10-20 | 盛志方 | A kind of fine particle thermophoretic deposition dust removal method and its system |
| CN107261714B (en) * | 2017-07-31 | 2019-09-10 | 盛志方 | A kind of fine particle thermophoretic deposition dust removal method and its system |
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| CN103000238B (en) | 2016-04-06 |
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Inventor after: Zhou Tao Inventor after: Liu Liang Inventor after: Fang Xiaolu Inventor after: Chen Baixu Inventor after: He Yifan Inventor before: Zhou Tao Inventor before: Ju Zhongyun Inventor before: Lin Daping Inventor before: Liu Liang Inventor before: Li Yunbo |
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Granted publication date: 20160406 Termination date: 20211128 |