CN106531263A - Zero power physical experimental device for lead-base reactor - Google Patents
Zero power physical experimental device for lead-base reactor Download PDFInfo
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- CN106531263A CN106531263A CN201611245847.1A CN201611245847A CN106531263A CN 106531263 A CN106531263 A CN 106531263A CN 201611245847 A CN201611245847 A CN 201611245847A CN 106531263 A CN106531263 A CN 106531263A
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- neutron
- heap
- physics facility
- container
- heap container
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Classifications
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C23/00—Adaptations of reactors to facilitate experimentation or irradiation
-
- 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 provides a zero power physical experimental device for a lead-base reactor. The zero power physical experimental device comprises a reactor vessel, a fuel element, a solid lead breeder, a reflection layer, a reactivity control system, a neutron source system and a shielding system. According to the invention, the solid lead breeder is flexibly spliced with a stub of the fuel element, so that the modularized arrangement of various reactor core structures in the experimental device can be realized; the subcritical and critical double-model running of the experimental device can be realized by inserting or drawing a neutron absorbing component containing tungsten metal into or from the reactor vessel; rare earth elements are added into fissile materials in the fuel element, so that the uniformity problem of reactor core power and neutron-flux distribution under the neutron source driving condition can be solved; a novel granular neutron absorbing material is adopted, so that the flexible structure and convenient recycling of the shielding system are realized.
Description
Technical field
The present invention relates to nuclear engineering technical field, specifically a kind of lead base heap zero energy physics facility, it is adaptable to lead
Base pile neutron physical characteristic experimental verification.
Background technology
The neutronics characteristic of research reactor, it usually needs build physics facility, for verify Mathematical Modeling and
Physical program, the monitoring of development reactivity and Research on measuring technique, the safety evaluation and license for reactor provide data.Lead
Alloy chemistry is very stable, is solid-state structure under normal temperature and pressure, therefore the physics facility with metal as cooling agent
Structure is necessarily different from light water reactor and sodium-cooled fast reactor physics facility.Further, since metal has good neutronics
Energy, security feature and heat-transfer capability, metal cooling fast reactor are important candidate's heap-type of current accelerator-driven sub-critical system,
Therefore development can couple accelerator and have the physics facility of subcritical state stable operation ability, be lead base heap zero energy
The important directions of physics facility.
Patent name is《A kind of metal cooling agent zero-energy reactor fuel assembly》(number of patent application
CN201510067562.2, in disclosure), a kind of fuel assembly for including cellular metal piece, above-mentioned fuel are disclosed
Component is made up of package shell, Solid Lead alloy sheet and fuel rod；Package shell is by outer tube, lower bottom base and upper cover group
Into；Fuel assembly center is stacked by Solid Lead alloy sheet and is formed, and fuel rod is arranged in each through hole；Solid Lead alloy sheet
Upper and lower ends stack solid Solid Lead alloy sheet, and the solid Solid Lead alloy sheet of upper end is connected with upper cover, lower end it is solid solid
State metal piece is connected with lower bottom base；Solid Lead alloy sheet, fuel rod, solid Solid Lead alloy sheet, upper cover, lower bottom base
It is encapsulated in hexagonal outer tube, upper cover, lower bottom base and outer tube are attached, outer tube upper and lower ends have centre bore,
Upper cover, the protruding part of lower bottom base are passed by centre bore.
Patent disclosed above cannot meet coupling accelerator and simultaneously with critical and subcritical service ability, and nothing
Method is realized subcritical and critical dual mode operated, also there is under outside neutron source driving environment core power and Neutron flux distribution not
Homogeneity question.
The content of the invention
It is an object of the invention to：A kind of lead base heap zero energy physics facility is proposed, with screen layer design, operation
The functions such as pattern, reactivity control, have solved the problems of the prior art.
The present invention solves technical problem and adopts the following technical scheme that：
A kind of lead base heap zero energy physics facility, including heap container, also include,
Fuel element, is arranged in the heap container, and rare earth unit is added with the easy fissioner in the fuel element
Element；
Solid-state metal multiplication agent, is arranged in the heap container, and is filled between the fuel element；
Reflecting layer, is arranged on the inwall of the heap container；
Neutron origin system, after the heap container center insertion neutron origin system, physics facility is in subcritical state；
After the neutron origin system is extracted out or part extracts the heap container out, physics facility is in critical condition, realizes physics reality
Experiment device is subcritical and critical operation pattern switching；And
Reactivity control system, introduces continuous high-energy heavy ion into heap container and bombards tungsten for controlling neutron origin system
Metal, generation stably hash neutron, realize the subcritical stable operation of experimental provision；It is additionally operable to control neutron origin system to stop to heap
High-energy heavy ion is introduced in container, realizes that physics facility stops subcritical operation,
Wherein, when physics facility is in critical operation, reactivity control system is by controlling neutron origin system to heap
Pulse high-energy heavy ion is introduced in container and tungsten metal is bombarded, is generated and is started neutron；Reactivity control system is independent by two sets
Safety shutdown system realize that physics facility is out of service.
Also there are following characteristics in the present invention：
Stainless steel casing of the heap container for hollow cylinder shape, the fuel element in the heap container are in positive triangle
Shape stub arranged evenly；
The reflecting layer of the inwall of the heap container is graphite or stainless steel；
The heap container top is connected with reactivity control system and neutron origin system；The heap container outer wall, bottom surface
It is connected with shielding harness with top surface.
The shielding harness includes the neutron absorber material of metal shell and internal filling, the neutron absorber material be containing
Boron polyurethane elastomer particle.
The solid-state metal multiplication agent includes metallic lead and lead bismuth alloy.
The neutron origin system includes the neutron-absorbing component of heavy ion avcceleration and tungstenic metal.
The rare earth element such as europium doped, samarium, dysprosium in easy fissioner in the fuel element, the doping ratio of rare earth element is
0.1～3wt%.
Compared with the prior art, beneficial effects of the present invention are embodied in：
(1) heap container fuel element and Solid Lead multiplication agent modularization are loaded, and can flexibly control reactor core active region size
And shape, realize various core structure arrangements；
(2) physics facility has critical/subcritical double-mode, and can verify that ADS (subcritical system) environment
Under reactor core neutronics feature；
(3) circulation of neutron absorber material is capable of achieving as neutron absorber material using boracic polyurethane elastomer particle
Using flexible adjustable with shielding harness structure；
(4) using Samarium Nitrate, europium, dysprosium is added in easy fissioner, power and the neutron density exhibition of reactor core are realized
It is flat.
Description of the drawings
The Figure of description for constituting the part of the application is used for providing a further understanding of the present invention, and the present invention's shows
Meaning property embodiment and its illustrated for explaining the present invention, does not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the lead base heap zero energy physics facility structural representation of the present invention.
Fig. 2 is that the modular solid-state metal piece cross-sectional structure of the present invention is illustrated.
Specific embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combine.Below with reference to the accompanying drawings and in conjunction with the embodiments describing the present invention in detail.
See figures.1.and.2, to architectural feature of the invention, details are as follows：
A kind of lead base heap zero energy physics facility, including heap container 1, also include,
Fuel element 2, is arranged in the heap container 1, is added with rare earth in the easy fissioner in the fuel element 2
Element；
Solid-state metal multiplication agent 3, is arranged in the heap container 1, and is filled between the fuel element 2；
Reflecting layer 4, is arranged on the inwall of the heap container 1；
Neutron origin system 6, after 1 center of the heap container insertion neutron origin system 6, physics facility is in subcritical shape
State；After the neutron origin system 6 is extracted out or part extracts the heap container 1 out, physics facility is in critical condition, realizes thing
Experimental provision is subcritical and critical operation pattern switching for reason；And
Reactivity control system 5, introduces continuous high-energy heavy ion into heap container 1 and bangs for controlling neutron origin system 6
Tungsten metal is hit, generation stably hashes neutron, realizes the subcritical stable operation of experimental provision；It is additionally operable to control neutron origin system 6 to stop
Only high-energy heavy ion is introduced into heap container 1, realize that physics facility stops subcritical operation,
Wherein, when physics facility is in critical operation, reactivity control system 5 by control neutron origin system 6 to
Pulse high-energy heavy ion is introduced in heap container 1 and tungsten metal is bombarded, is generated and is started neutron；Reactivity control system 6 passes through two sets
Independent safety shutdown system realizes that physics facility is out of service.
Stainless steel casing of the heap container 1 for hollow cylinder shape, the fuel element 2 in the heap container 1 is in just
The stub of Triangle-Profile arrangement；
The reflecting layer 4 of the inwall of the heap container 1 is graphite or stainless steel；
It is connected with reactivity control system 5 and neutron origin system 6 at the top of the heap container 1；1 outer wall of heap container,
Bottom surface and top surface are connected with shielding harness 8.
The shielding harness 8 includes the neutron absorber material of metal shell and internal filling, and the neutron absorber material is
Boracic polyurethane elastomer particle.
The solid-state metal multiplication agent 3 includes metallic lead and lead bismuth alloy.
The neutron origin system 6 includes the neutron-absorbing component of heavy ion avcceleration and tungstenic metal.
The rare earth element such as europium doped, samarium, dysprosium, the doping ratio of rare earth element in easy fissioner in the fuel element 2
For 0.1～3wt%.
Shielding harness 8 is made up of filling boracic polyurethane elastomer particle inside 3 piece of 316 stainless steel metal thin-wall shell,
Shielded at the top of physics facility respectively, bottom and side；The shielding harness of top and bottom is cylinder, and side is open circles
It is barrel-shaped；
1 fuel element of heap container, 2 sum is 103.
During subcritical state operation, the proton beam accelerated by heavy ion avcceleration is continuously banged physics facility
Hit tungsten 7 and produce neutron, cause the chain reaction of nuclear fission in fuel element 2；When out of service, accelerated by stopping heavy ion
Device, no longer introduces proton beam into heap container 1, and physics facility is spontaneous out of service.
Non-elaborated part of the present invention belongs to techniques well known.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of spirit or essential attributes without departing substantially from the present invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit is required rather than described above is limited, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference in claim should not be considered as and limit involved claim.
Moreover, it will be appreciated that although this specification is been described by according to embodiment, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical scheme in each embodiment can also Jing it is appropriately combined, form those skilled in the art
Understandable other embodiment.
Claims (6)
1. a kind of lead base heap zero energy physics facility, including heap container (1), it is characterised in that：Also include,
Fuel element (2), is arranged in the heap container (1), is added with dilute in the easy fissioner in the fuel element (2)
Earth elements；
Solid-state metal multiplication agent (3), is arranged in the heap container (1), and is filled between the fuel element (2)；
Reflecting layer (4), is arranged on the inwall of the heap container (1)；
Neutron origin system (6), after heap container (1) center insertion neutron origin system (6), physics facility is in subcritical
State；After the neutron origin system (6) is extracted out or part extracts the heap container (1) out, physics facility is in critical condition,
Realize that physics facility is subcritical and critical operation pattern switching；And
Reactivity control system (5), introduces continuous high-energy heavy ion simultaneously for controlling neutron origin system (6) into heap container (1)
Bombardment tungsten metal, generation stably hash neutron, realize the subcritical stable operation of experimental provision；It is additionally operable to control neutron origin system
(6) stop high-energy heavy ion being introduced into heap container (1), realize that physics facility stops subcritical operation,
Wherein, when physics facility is in critical operation, reactivity control system (5) by control neutron origin system (6) to
Pulse high-energy heavy ion is introduced in heap container (1) and tungsten metal is bombarded, is generated and is started neutron；Reactivity control system (6) passes through
Two sets of independent safety shutdown systems realize that physics facility is out of service.
2. lead base heap zero energy physics facility according to claim 1, it is characterised in that：The heap container (1) is
The stainless steel casing of hollow cylinder shape, short arranged evenly in equilateral triangle of the fuel element (2) in the heap container (1)
Rod；
The reflecting layer (4) of the inwall of the heap container (1) is graphite or stainless steel；
It is connected with reactivity control system (5) and neutron origin system (6) at the top of the heap container (1)；The heap container (1) is outward
Wall, bottom surface and top surface are connected with shielding harness (8).
3. lead base heap zero energy physics facility according to claim 2, it is characterised in that：The shielding harness (8)
Including metal shell and the neutron absorber material of internal filling, the neutron absorber material is boracic polyurethane elastomer particle.
4. lead base heap zero energy physics facility according to claim 1, it is characterised in that：The solid-state metal increases
Agent (3) is grown including metallic lead and lead bismuth alloy.
5. lead base heap zero energy physics facility according to claim 1, it is characterised in that：The neutron origin system
(6) including the neutron-absorbing component of heavy ion avcceleration and tungstenic metal.
6. lead base heap zero energy physics facility according to claim 1, it is characterised in that：The fuel element (2)
The rare earth element such as europium doped, samarium, dysprosium in interior easy fissioner, the doping ratio of rare earth element is 0.1～3wt%.
Priority Applications (1)
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| CN201611245847.1A CN106531263B (en) | 2016-12-29 | 2016-12-29 | A kind of lead base heap zero energy physics facility |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611245847.1A CN106531263B (en) | 2016-12-29 | 2016-12-29 | A kind of lead base heap zero energy physics facility |
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| CN106531263A true CN106531263A (en) | 2017-03-22 |
| CN106531263B CN106531263B (en) | 2018-03-23 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108597625A (en) * | 2018-05-08 | 2018-09-28 | 西安交通大学 | A kind of experimental provision for studying fusant migratory behaviour in lead base reactor cluster channel |
| CN108665984A (en) * | 2018-05-08 | 2018-10-16 | 西安交通大学 | A kind of experimental provision studied fuel particle under lead base reactor disaster and migrate characteristic |
| CN109712724A (en) * | 2018-12-29 | 2019-05-03 | 中国原子能科学研究院 | A kind of double reactor core zero-power facilities |
| CN111540491A (en) * | 2020-05-14 | 2020-08-14 | 中国核动力研究设计院 | Rod-shaped fuel source item release characteristic research experimental device and using method thereof |
| CN113012826A (en) * | 2021-03-02 | 2021-06-22 | 上海交通大学 | Small-sized lead-cooled fast reactor core |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108597625A (en) * | 2018-05-08 | 2018-09-28 | 西安交通大学 | A kind of experimental provision for studying fusant migratory behaviour in lead base reactor cluster channel |
| CN108665984A (en) * | 2018-05-08 | 2018-10-16 | 西安交通大学 | A kind of experimental provision studied fuel particle under lead base reactor disaster and migrate characteristic |
| CN108597625B (en) * | 2018-05-08 | 2019-04-09 | 西安交通大学 | A kind of experimental provision for studying fusant migratory behaviour in lead base reactor cluster channel |
| CN109712724A (en) * | 2018-12-29 | 2019-05-03 | 中国原子能科学研究院 | A kind of double reactor core zero-power facilities |
| CN111540491A (en) * | 2020-05-14 | 2020-08-14 | 中国核动力研究设计院 | Rod-shaped fuel source item release characteristic research experimental device and using method thereof |
| CN111540491B (en) * | 2020-05-14 | 2022-04-01 | 中国核动力研究设计院 | Rod-shaped fuel source item release characteristic research experimental device and using method thereof |
| CN113012826A (en) * | 2021-03-02 | 2021-06-22 | 上海交通大学 | Small-sized lead-cooled fast reactor core |
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| Publication number | Publication date |
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| CN106531263B (en) | 2018-03-23 |
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