CN206363764U - A kind of reactive control ring - Google Patents
A kind of reactive control ring Download PDFInfo
- Publication number
- CN206363764U CN206363764U CN201620700901.6U CN201620700901U CN206363764U CN 206363764 U CN206363764 U CN 206363764U CN 201620700901 U CN201620700901 U CN 201620700901U CN 206363764 U CN206363764 U CN 206363764U
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- China
- Prior art keywords
- reflection layer
- control ring
- neutron absorber
- fixed bucket
- absorber material
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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 reactive control ring, and the reactive control ring includes fixed bucket, neutron absorber material, sliding reflection layer and drive device, wherein, the neutron absorber material is uniform and step-by-step arrangement is on the fixed bucket；The sliding reflection layer is arranged at the inner side of the fixed bucket, inwall of the compartment of terrain around the fixed bucket；The drive device drives the sliding reflection layer to rotate, 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 reactive control ring.
Background technology
In nuclear reactor engineering, reactive control is realized by control rod mechanism.As shown in figure 4, 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 4
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 reactive control ring, the reactive control ring bag
Fixed bucket, neutron absorber material, sliding reflection layer and drive device are included, wherein, the neutron absorber material is uniform and is segmented
It is arranged on the fixed bucket；The sliding reflection layer is arranged at the inner side of the fixed bucket, and compartment of terrain is around the fixed bucket
Inwall；The drive device drives the sliding reflection layer to rotate, so that the sliding reflection layer masking neutron is inhaled
Receive material or expose 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 axially extending strip of the fixed bucket.
Preferably, the sliding reflection layer shape is adapted with the shape of the neutron absorber material, so as to be driven described
Rotated under the driving of dynamic device and cover the neutron absorber material just.
Preferably, the reactive control ring 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.
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 is the reactive control ring for meeting the utility model preferred embodiment in the state of neutron absorber material is exposed
Top view.
Fig. 2 is the reactive control ring for meeting the utility model preferred embodiment in the state of shield neutrons absorbing material
Top view.
Fig. 3 is the stereogram for the reactive control ring for meeting the utility model preferred embodiment.
Fig. 4 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. 3, the utility model proposes a kind of reactive control ring, the reactive control ring includes
Fixed bucket 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 fixed bucket 1；
The sliding reflection layer 3 is arranged at the inner side of the fixed bucket 1, inwall of the compartment of terrain around the fixed bucket 1；
The drive device 4 drives the sliding reflection layer 3 to rotate, so that during the masking of sliding reflection layer 3 is described
Sub- absorbing material 2 exposes the neutron absorber material 3.Wherein Fig. 1 is to meet the utility model preferred embodiment
Reactive control ring is exposing the state of neutron absorber material；Fig. 2 is the reactivity control for meeting the utility model preferred embodiment
State of the ring processed in shield neutrons absorbing material.
Preferably, as indicated at 3, the neutron absorber material 2 is set greater than being equal to 2 sections, every section of neutron-absorbing material
Material 2 is set to the axially extending strip along the fixed bucket 1.
Preferably, 3 shape of the sliding reflection layer are adapted with the shape of the neutron absorber material 2, so that described
Rotated under the driving of drive device 4 and cover the neutron absorber material 2 just.
Preferably, the reactive control ring 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.
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 each embodiment emphasis is said
Bright be all between the difference with other embodiment, each embodiment identical similar portion mutually referring to.For reality
Apply for system disclosed in example, due to corresponding to the method disclosed in Example, so description is fairly simple, related part is joined
See 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 (6)
1. a kind of reactive control ring, it is characterised in that the reactive control ring includes fixed bucket, neutron absorber material, cunning
Dynamic reflecting layer and drive device, wherein,
The neutron absorber material is uniform and step-by-step arrangement is on the fixed bucket；
The sliding reflection layer is arranged at the inner side of the fixed bucket, inwall of the compartment of terrain around the fixed bucket；
The drive device drives the sliding reflection layer to rotate, so that the sliding reflection layer masking neutron-absorbing material
Expect or expose the neutron absorber material.
2. reactivity control ring 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 axially extending strip along the fixed bucket.
3. reactivity control ring 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, so as to be rotated under the driving of the drive device and cover the neutron-absorbing material just
Material.
4. reactivity control ring as claimed in claim 1, it is characterised in that the reactive control ring is enclosed in fuel assembly
Outside.
5. reactivity control ring as claimed in claim 1, it is characterised in that the sliding reflection layer is metal material.
6. reactivity control ring as claimed in claim 1, it is characterised in that the sliding reflection layer is with reflected neutron energy
The material of power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620700901.6U CN206363764U (en) | 2016-07-05 | 2016-07-05 | A kind of reactive control ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620700901.6U CN206363764U (en) | 2016-07-05 | 2016-07-05 | A kind of reactive control ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206363764U true CN206363764U (en) | 2017-07-28 |
Family
ID=59368520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620700901.6U Active CN206363764U (en) | 2016-07-05 | 2016-07-05 | A kind of reactive control ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206363764U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105913881A (en) * | 2016-07-05 | 2016-08-31 | 上海核工程研究设计院 | Reactivity control ring |
| CN113241201A (en) * | 2021-04-29 | 2021-08-10 | 西南科技大学 | Non-uniform control rod with non-uniform reflecting layer |
-
2016
- 2016-07-05 CN CN201620700901.6U patent/CN206363764U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105913881A (en) * | 2016-07-05 | 2016-08-31 | 上海核工程研究设计院 | Reactivity control ring |
| CN113241201A (en) * | 2021-04-29 | 2021-08-10 | 西南科技大学 | Non-uniform control rod with non-uniform reflecting layer |
| CN113241201B (en) * | 2021-04-29 | 2022-03-04 | 西南科技大学 | Non-uniform control rod with non-uniform reflecting layer |
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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 |