CN206363765U - A kind of reactivity control set - Google Patents
A kind of reactivity control set Download PDFInfo
- Publication number
- CN206363765U CN206363765U CN201620700610.7U CN201620700610U CN206363765U CN 206363765 U CN206363765 U CN 206363765U CN 201620700610 U CN201620700610 U CN 201620700610U CN 206363765 U CN206363765 U CN 206363765U
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- China
- Prior art keywords
- fixed body
- control set
- reactivity control
- reflection layer
- hollow fixed
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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
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Abstract
The utility model provides a kind of reactivity control set, and the reactivity control set includes hollow fixed body, neutron absorber material, sliding reflection layer and drive device, wherein, the neutron absorber material is uniform and step-by-step arrangement is on the hollow fixed body；The sliding reflection layer is arranged at the inner side of the hollow fixed body, surround to section gap the inwall of the hollow fixed body；The drive device drives the sliding reflection layer to move up and down, so that sliding reflection layer covers the neutron absorber material or exposes the neutron absorber material.Compared with prior art, the utility model has the height for significantly reducing drive mechanism and control rod stroke pneumatic shell, lower-powered nuclear reactor is applicable to, reduces the highly significant of whole reactor body, while adding the beneficial effect of the security of reactor.
Description
Technical field
The utility model is related to a kind of reactivity control set.
Background technology
In nuclear reactor engineering, reactive control is realized by control rod mechanism.As shown in fig. 7, traditional
Control rod mechanism, the cluster (generally by being constituted with the material for absorbing neutron ability) of its control rod is symmetrical and is equably inserted in combustion
Expect in component, control rod mechanism is integrally moved up and down by the cluster of drive control rod, realize the control of reactivity.Traditional control
The design of bar-producing machine structure, arranges control rod cluster as much as possible, to provide foot primarily to realizing inside fuel assembly
Enough negative reactivities, could offset the positive reactivity of nuclear fuel in fuel rod, so as to ensure the safety of reactor.But, tradition
Control rod mechanism there is, stroke long the problem of big with volume.
Small reactor (electrical power ＜ 300MWe), the quantity of its fuel rod is conventional standard reactor (electrical power one
As be 1000MWe) 30% or less, whole reactor core it is reactive relatively low.It therefore, it can by fuel assembly
Peripheral disposition neutron absorber material, to realize the purpose of control reactivity.
On the other hand, Small reactor requires that the volume of whole reactor is smaller, and traditional control rod as shown in Figure 7
The design of mechanism, is to limit one of restraining factors that Small reactor reduces in short transverse.
Therefore, a kind of small volume how is provided, stroke is short, safe control rod mechanism becomes urgently to be resolved hurrily ask
Topic.
Utility model content
The utility model in view of the shortcomings of the prior art, proposes a kind of reactivity control set, the reactivity control set bag
Include hollow fixed body, neutron absorber material, sliding reflection layer and drive device, wherein, the neutron absorber material it is uniform and
Step-by-step arrangement is on the hollow fixed body；The sliding reflection layer is arranged at the inner side of the hollow fixed body, section gap
Inwall of the ground around the hollow fixed body；The drive device drives the sliding reflection layer to move up and down, so that described
The sliding reflection layer masking neutron absorber material exposes the neutron absorber material.
Preferably, the neutron absorber material is set greater than being equal to 2 sections, and every section of neutron absorber material is set to edge
The ring-type radially extended of the hollow fixed body.
Preferably, the sliding reflection layer shape is adapted with the shape of the neutron absorber material, so as to be driven described
Moved up and down under the driving of dynamic device and cover the neutron absorber material just.
Preferably, the reactivity control set is enclosed on the outside of fuel assembly.
Preferably, the sliding reflection layer is metal material.
Preferably, the sliding reflection layer is the material with reflected neutron ability.
Preferably, the section of the hollow fixed body is arbitrary shape.
Preferably, the section of the hollow fixed body is circle.
Preferably, the section of the hollow fixed body is square.
Compared with prior art, the utility model has the height for significantly reducing drive mechanism and control rod stroke pneumatic shell
Degree, is applicable to lower-powered nuclear reactor, reduces the highly significant of whole reactor body, while adding reaction
The beneficial effect of the security of heap.
Brief description of the drawings
Fig. 1 be meet the utility model preferred embodiment reactivity control be enclosed on and expose neutron absorber material in the state of
Stereogram.
Fig. 2 is that the reactivity control for meeting the utility model preferred embodiment is enclosed in the state of shield neutrons absorbing material
Stereogram.
Fig. 3 be meet the utility model preferred embodiment reactivity control be enclosed on and expose neutron absorber material in the state of
Sectional view.
Fig. 4 is that the reactivity control for meeting the utility model preferred embodiment is enclosed in the state of shield neutrons absorbing material
Sectional view.
Fig. 5 is the exploded view for the reactivity control set for meeting the utility model preferred embodiment.
Fig. 6 is the stereogram for another embodiment for meeting the utility model reactivity control set.
Fig. 7 is the schematic diagram of traditional control rod mechanism.
Embodiment
To enable above-mentioned purpose of the present utility model, feature and advantage more obvious understandable, below in conjunction with the accompanying drawings and tool
Body embodiment is described in further detail to the utility model.
As shown in Fig. 1 to Fig. 6, the utility model proposes a kind of reactivity control set, during the reactivity control set includes
Empty fixed body 1, neutron absorber material 2, sliding reflection layer 3 and drive device 4, wherein,
The neutron absorber material 2 is uniform and step-by-step arrangement is on the hollow fixed body 1；
The sliding reflection layer 3 is arranged at the inner side of the hollow fixed body 1, surround the hollow fixation to section gap
The inwall of body 1；
The drive device 4 drives the sliding reflection layer 3 to move up and down, so that the sliding reflection 3 shelter of layer
State neutron absorber material 2 or expose the neutron absorber material 2.
Preferably, as shown in figure 5, the neutron absorber material 2 is set greater than being equal to 2 sections, every section of neutron-absorbing
Material 2 is set to the ring-type radially extended along the hollow fixed body 1.
Preferably, as shown in figure 3, the sliding reflection 3 shape of layer are adapted with the shape of the neutron absorber material 2,
So as to be moved up and down under the driving of the drive device 4 and cover the neutron absorber material 2 just.
Preferably, the reactivity control set is enclosed on the outside of fuel assembly.
Preferably, the sliding reflection layer 3 is metal material.
Preferably, the sliding reflection layer 3 is the material with reflected neutron ability.
Preferably, the section of the hollow fixed body 1 is arbitrary shape.
Preferably, as shown in figure 5, the section of the hollow fixed body 1 is circle.
Preferably, as shown in fig. 6, the section of the hollow fixed body 1 is square.
Compared with prior art, the utility model has the height for significantly reducing drive mechanism and control rod stroke pneumatic shell
Degree, is applicable to lower-powered nuclear reactor, reduces the highly significant of whole reactor body, while adding reaction
The beneficial effect of the security of heap.
The embodiment of each in this specification is described by the way of progressive, and what each embodiment was stressed is and other
Between the difference of embodiment, each embodiment identical similar portion mutually referring to.For system disclosed in embodiment
For, due to corresponding to the method disclosed in Example, so description is fairly simple, related part is referring to method part illustration
.
Those skilled in the art can realize described function to each specific application using distinct methods, but
It is this realize it is not considered that beyond scope of the present utility model.
Obviously, those skilled in the art can be new without departing from this practicality to the various changes of utility model progress and modification
The spirit and scope of type.So, if these modifications and variations of the present utility model belong to the utility model claim and its
Within the scope of equivalent technologies, then the utility model is also intended to including these changes and modification.
Claims (9)
1. a kind of reactivity control set, it is characterised in that the reactivity control set includes hollow fixed body, neutron-absorbing material
Material, sliding reflection layer and drive device, wherein,
The neutron absorber material is uniform and step-by-step arrangement is on the hollow fixed body；
The sliding reflection layer is arranged at the inner side of the hollow fixed body, surround the interior of the hollow fixed body to section gap
Wall；
The drive device drives the sliding reflection layer to move up and down, so that the sliding reflection layer masking neutron is inhaled
Receive material or expose the neutron absorber material.
2. reactivity control set as claimed in claim 1, it is characterised in that the neutron absorber material is set greater than being equal to
2 sections, every section of neutron absorber material is set to the ring-type radially extended along the hollow fixed body.
3. reactivity control set as claimed in claim 1, it is characterised in that the sliding reflection layer shape is inhaled with the neutron
The shape for receiving material is adapted, and is inhaled so as to be moved up and down under the driving of the drive device and cover the neutron just
Receive material.
4. reactivity control set as claimed in claim 1, it is characterised in that the reactivity control set is enclosed in fuel assembly
Outside.
5. reactivity control set as claimed in claim 1, it is characterised in that the sliding reflection layer is metal material.
6. reactivity control set as claimed in claim 1, it is characterised in that the sliding reflection layer is with reflected neutron energy
The material of power.
7. reactivity control set as claimed in claim 1, it is characterised in that the section of the hollow fixed body is arbitrary shape
Shape.
8. reactivity control set as claimed in claim 1, it is characterised in that the section of the hollow fixed body is circle.
9. reactivity control set as claimed in claim 1, it is characterised in that the section of the hollow fixed body is square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620700610.7U CN206363765U (en) | 2016-07-05 | 2016-07-05 | A kind of reactivity control set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620700610.7U CN206363765U (en) | 2016-07-05 | 2016-07-05 | A kind of reactivity control set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206363765U true CN206363765U (en) | 2017-07-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620700610.7U Active CN206363765U (en) | 2016-07-05 | 2016-07-05 | A kind of reactivity control set |
Country Status (1)
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| CN (1) | CN206363765U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105957562A (en) * | 2016-07-05 | 2016-09-21 | 上海核工程研究设计院 | Reactivity control sleeve |
-
2016
- 2016-07-05 CN CN201620700610.7U patent/CN206363765U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105957562A (en) * | 2016-07-05 | 2016-09-21 | 上海核工程研究设计院 | Reactivity control sleeve |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 29 Hong Cao Road, Xuhui District, Shanghai Patentee after: Shanghai Nuclear Engineering Research and Design Institute Co.,Ltd. Address before: No. 29 Hong Cao Road, Xuhui District, Shanghai Patentee before: SHANGHAI NUCLEAR ENGINEERING RESEARCH & DESIGN INSTITUTE |
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| CP01 | Change in the name or title of a patent holder |