CN109036593A - A kind of novel core barrel structure - Google Patents
A kind of novel core barrel structure Download PDFInfo
- Publication number
- CN109036593A CN109036593A CN201810803222.5A CN201810803222A CN109036593A CN 109036593 A CN109036593 A CN 109036593A CN 201810803222 A CN201810803222 A CN 201810803222A CN 109036593 A CN109036593 A CN 109036593A
- Authority
- CN
- China
- Prior art keywords
- cylinder
- flange
- inner flange
- part inner
- mutually fixed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims description 9
- 239000010935 stainless steel Substances 0.000 claims description 9
- 238000003466 welding Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
- 238000005242 forging Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C5/00—Moderator or core structure; Selection of materials for use as moderator
- G21C5/02—Details
- G21C5/10—Means for supporting the complete structure
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C19/00—Arrangements for treating, for handling, or for facilitating the handling of, fuel or other materials which are used within the reactor, e.g. within its pressure vessel
- G21C19/02—Details of handling arrangements
-
- 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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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The invention discloses a kind of novel core barrel structures, for in the pressure vessel of presurized water reactor, it includes at least upper support flange (1), top cylinder (2), lower cylinder (4), lower part inner flange (6) and reactor core lower plate (5), in which: at least provided with hole for hoist (10) on the upper support flange (1)；The top cylinder (2) is mutually fixed with the upper support flange (1), provided circumferentially about has multilayer discharge orifice (20) at its；The lower cylinder (4) is mutually fixed with top cylinder (2) bottom end；The upper end of the lower part inner flange (6) and the bottom end of the lower cylinder (4) are mutually fixed；Lower part inner flange (6) upper surface is provided with bearing step (60), and reactor core lower plate (5) is placed on the bearing step (60) and mutually fixes with lower part inner flange (6).Implement the present invention, have many advantages, such as it is simple and strong in structure, be easy to lift, conducive to scram.
Description
Technical field
The present invention relates to technical field of nuclear power, more particularly to a kind of novel core barrel structure.
Background technique
In the reactor core of existing presurized water reactor, the scram by realizing control rod using hanging basket component is needed.But it is existing
There is hanging basket component generally using discharge orifice is concentrated, in realizing the course of work, the collection middle outlet is because of transverse flow caused by suction；
If the load reaches a certain level, control rod guide tubes and bundles component can be made to bend；On the other hand the transversely acting meeting
Cause the frictional force between control rod and guide cylinder to become larger, is unfavorable for Dropping of control rod.
Therefore how to provide a kind of performance more preferably core barrel component becomes a problem to be solved.
Summary of the invention
Technical problem to be solved by the present invention lies in, a kind of novel core barrel structure is provided, it is simple with structure
Securely, it is easy to lift, is conducive to the advantages that scram.
In order to solve the above technical problems, the embodiment of the present invention provides a kind of novel core barrel structure, for presurized water reactor
In pressure vessel, upper support flange, top cylinder, lower cylinder, lower part inner flange and reactor core lower plate are included at least,
In:
At least provided with lifting advances through hole on the upper support flange；
The top cylinder is mutually fixed with the upper support flange, provided circumferentially about has multilayer discharge orifice at its；
The lower cylinder is mutually fixed with top cylinder bottom end；
The upper end of the lower part inner flange is mutually fixed with the lower cylinder bottom end；
Lower part inner flange upper surface is provided with bearing step, and reactor core lower plate is placed on the bearing step and mutually consolidates with inner flange
It is fixed.
Wherein, upper support flange upper surface is further provided with step and cooling for installing holddown spring
Discharge orifice.
Wherein, middle part supported flange is provided between top cylinder and lower cylinder.
Wherein, upper support flange and the upper end of the top cylinder are mutually fixed by welding manner, the lower part Nei Fa
Blue upper end and the lower end of the lower cylinder are mutually fixed by welding manner；
Wherein, it is attached between the reactor core lower plate and lower part inner flange using mechanical system.
Wherein, the reactor core lower plate is attached by the way of cold charge pin with the lower part inner flange.
Wherein, surrounding is provided with multiple radial positioning keyways on the outside of the inner flange of lower part, the multiple radial positioning keyway with
Radial support key on reactor pressure vessel cylinder matches.
Wherein, the upper support flange, top cylinder, lower cylinder, middle part supported flange, lower part inner flange and heap
Core lower plate is all made of stainless steel material and is made.
Implement the present invention, have it is following the utility model has the advantages that
Novel core barrel structure provided by the invention, uses stainless steel material, and various components structure is simple, and connects
Mode is secured；
Due to being provided with multiple rows of discharge orifice in cradle cylinder body, it is indoor epicoele can be effectively reduced in hoisting process
Transverse flow, it is possible to reduce lateral load and frictional force between control rod and guide cylinder can be reduced, be conducive to control rod realization
Linear scram；
Increase intermediate supported flange in cradle cylinder body middle position, pressing force can be provided for other component；
Using mechanical connection between cradle cylinder body and reactor core lower plate, while reactor core lower plate being made to take into account manhole plate effect, without in addition opening
If manhole.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other drawings based on these drawings.
Fig. 1 is a kind of cross-sectional view of one embodiment of novel core barrel structure provided by the invention；
Fig. 2 is part A lower part inner flange and board fixing structure schematic diagram under reactor core in one embodiment of Fig. 1；
Fig. 3 is the structural schematic diagram that part A lower part inner flange and reactor core lower plate are fixed in another embodiment of Fig. 1.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
As shown in Figure 1, being a kind of cross-sectional view of one embodiment of novel core barrel structure provided by the invention；Together
As shown in connection with fig. 2.In this embodiment, the novel core barrel structure is at least wrapping in the pressure vessel of presurized water reactor
Upper support flange 1, top cylinder 2, lower cylinder 4, middle part supported flange 3, lower part inner flange 6 and reactor core lower plate 5 are included,
In:
At least provided with lifting advances through hole 10, the step 11 for installing holddown spring and cold on the upper support flange 1
But discharge orifice 12；
The top cylinder 2 is fixed with 1 phase of upper support flange, provided circumferentially about has multilayer discharge orifice 20 at its；
The lower cylinder 4 is mutually fixed with 2 bottom end of top cylinder；
Middle part supported flange 3 is set between top cylinder 2 and lower cylinder 4, and middle part supported flange is mainly used for providing compression
Power compresses the components being located on the downside of it；
The upper end of the lower part inner flange 6 and the bottom end of the lower cylinder 4 are mutually fixed；
Inner flange 6 upper surface in lower part is provided with bearing step 60, and reactor core lower plate 5 is placed on the bearing step 60 and and inner flange
6 phases are fixed.
Wherein, upper support flange 1 and the upper end of the top cylinder 2 are mutually fixed by welding manner, in the lower part
The upper end of flange 6 and the lower end of the lower cylinder 4 are mutually fixed by welding manner；
It is attached between the reactor core lower plate 5 and lower part inner flange 6 using mechanical system (such as bolt 7).
Further, multiple radial positioning keyways 61, the multiple radial positioning are provided in 6 outside surrounding of lower part inner flange
Keyway 61 is matched with the radial support key 9 on reactor pressure vessel cylinder, to realize the positioning centering of hanging basket installation, simultaneously
Secondary supporting role is provided under the accident that hanging basket is broken.
Wherein, the upper support flange 1, top cylinder 2, lower cylinder 4, middle part supported flange 3, lower part inner flange 6
And reactor core lower plate 5 is all made of stainless steel material and is made.Specifically, in one example, the upper support flange 1 can be by
Stainless steel forgings are processed into, and the top cylinder 2 and lower cylinder 4 can be formed by stainless steel plate is coiling welded, the middle part pressure
Tight flange 3 can be made of stainless steel forgings, to improve intensity.Lower part inner flange 6 can also be made of stainless steel forgings.
It is understood that in the present embodiment, it is uniformly provided with multilayer discharge orifice 20 on the top cylinder 2, from
And the concentration discharge orifice in traditional hanging basket component is substituted, it can export to avoid concentrating because of transverse flow caused by suction；On the one hand
The transversely acting load to control rod guide tubes and bundles component can be reduced, avoids bending；On the other hand guide cylinder can be reduced
Exit transverse flow is to the transversely acting of control rod, and frictional force between caused control rod and guide cylinder falls conducive to control rod
Stick.
As shown in figure 3, showing the knot that part A lower part inner flange and reactor core lower plate are fixed in another embodiment of Fig. 1
Structure schematic diagram.In this embodiment, it is with the difference of Fig. 2, is adopted between the reactor core lower plate 5 and the lower part inner flange 6
It is attached with the mode of cold charge pin 8.Using this connection type, reactor core lower plate 5 can be made to also serve as the function of manhole plate, specifically
Ground, as long as taking out all cold charge pins 8, so that it may reactor core lower plate 5 is easily opened, to form one in the bottom of hanging basket
Manhole.
Implement the present invention, have it is following the utility model has the advantages that
Novel core barrel structure provided by the invention, uses stainless steel material, and various components structure is simple, and connects
Mode is secured；
Due to being provided with multiple rows of discharge orifice in cradle cylinder body, it is indoor epicoele can be effectively reduced in hoisting process
Transverse flow, it is possible to reduce lateral load and frictional force between control rod and guide cylinder can be reduced, be conducive to control rod realization
Linear scram；
Increase intermediate supported flange in cradle cylinder body middle position, pressing force can be provided for other component；
Using mechanical connection between cradle cylinder body and reactor core lower plate, while reactor core lower plate being made to take into account manhole plate effect, without in addition opening
If manhole.
Above disclosed is only a preferred embodiment of the present invention, cannot limit the power of the present invention with this certainly
Sharp range, therefore equivalent changes made in accordance with the claims of the present invention, are still within the scope of the present invention.
Claims (8)
1. a kind of novel core barrel structure, in the pressure vessel of presurized water reactor, which is characterized in that it includes at least top branch
Hold flange (1), top cylinder (2), lower cylinder (4), lower part inner flange (6) and reactor core lower plate (5), in which:
At least provided with hole for hoist (10) on the upper support flange (1)；
The top cylinder (2) is mutually fixed with the upper support flange (1), provided circumferentially about has multilayer discharge orifice at its
(20)；
The lower cylinder (4) is mutually fixed with top cylinder (2) bottom end；
The upper end of the lower part inner flange (6) and the bottom end of the lower cylinder (4) are mutually fixed；
Lower part inner flange (6) upper surface is provided with bearing step (60), and reactor core lower plate (5) is placed on the bearing step (60) simultaneously
It is mutually fixed with lower part inner flange (6).
2. structure as described in claim 1, which is characterized in that upper support flange (1) upper surface is further provided with
For installing step (11) and the cooling discharge orifice 12 of holddown spring.
3. structure as described in claim 1, which is characterized in that in being provided between top cylinder (2) and lower cylinder (4)
Portion's supported flange (3).
4. structure as claimed in claim 3, which is characterized in that the upper end of upper support flange (1) and the top cylinder (2)
It is mutually fixed by welding manner, the upper end of the lower part inner flange (6) and the lower end of the lower cylinder (4) pass through welding manner
It is mutually fixed.
5. structure as claimed in claim 4, which is characterized in that used between the reactor core lower plate (5) and lower part inner flange (6)
Mechanical system is attached.
6. structure as claimed in claim 4, which is characterized in that between the reactor core lower plate (5) and the lower part inner flange (6)
It is attached by the way of cold charge pin (8).
7. such as structure described in claim 5 or 6, which is characterized in that in lower part, surrounding is provided with multiple radial directions on the outside of inner flange (6)
Positioning spline (61), the multiple radial positioning keyway (61) and radial support key (9) phase on reactor pressure vessel cylinder
Cooperation.
8. structure as claimed in claim 7, which is characterized in that the upper support flange (1), top cylinder (2), lower sleeve
Body (4), middle part supported flange (3), lower part inner flange (6) and reactor core lower plate (5) are all made of stainless steel material and are made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810803222.5A CN109036593A (en) | 2018-07-20 | 2018-07-20 | A kind of novel core barrel structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810803222.5A CN109036593A (en) | 2018-07-20 | 2018-07-20 | A kind of novel core barrel structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109036593A true CN109036593A (en) | 2018-12-18 |
Family
ID=64643821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810803222.5A Pending CN109036593A (en) | 2018-07-20 | 2018-07-20 | A kind of novel core barrel structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109036593A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110767337A (en) * | 2019-10-29 | 2020-02-07 | 中国原子能科学研究院 | Flange connection structure |
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|---|---|---|---|---|
| EP0160603A1 (en) * | 1984-04-11 | 1985-11-06 | Novatome | Plug closure for a fast neutron nuclear reactor core |
| JPH09281267A (en) * | 1996-04-10 | 1997-10-31 | Ishikawajima Harima Heavy Ind Co Ltd | Reactor pressure vessel |
| JP2005338097A (en) * | 2005-07-05 | 2005-12-08 | Toshiba Corp | Repair device and machining device for structure |
| CN1917095A (en) * | 2005-08-19 | 2007-02-21 | 中国核动力研究设计院 | Shell type reactor in normal presure and low temperature |
| CN102842347A (en) * | 2012-10-08 | 2012-12-26 | 中国核工业华兴建设有限公司 | Special testing device for small measuring chamber of nuclear power plant reactor cavity |
| CN103106932A (en) * | 2013-02-04 | 2013-05-15 | 中国核动力研究设计院 | Flow-concentrating type two-flow super-critical water-cooled reactor |
| CN103106931A (en) * | 2013-02-04 | 2013-05-15 | 中国核动力研究设计院 | Reactor internal suitable for supercritical water-cooled reactor two-flow core |
| CN103474104A (en) * | 2012-06-08 | 2013-12-25 | 中国核动力研究设计院 | Split-type integral pressurized water reactor with down-suspended basket |
| CN105957560A (en) * | 2016-07-05 | 2016-09-21 | 上海核工程研究设计院 | Reactor body structure of reactor of pressurized water reactor nuclear power plant |
| CN207124043U (en) * | 2017-07-26 | 2018-03-20 | 四川大学 | Reactor coolant presses down whirlpool and flow distribution device and reactor core internals |
| CN108062985A (en) * | 2017-12-28 | 2018-05-22 | 中广核研究院有限公司 | For the pressure vessel of reactor |
| CN108257686A (en) * | 2017-12-28 | 2018-07-06 | 中广核研究院有限公司 | Reactor, reactor main equipment and the water proof ring for reactor main equipment |
| CN208873480U (en) * | 2018-07-20 | 2019-05-17 | 中广核研究院有限公司 | A kind of novel core barrel structure |
-
2018
- 2018-07-20 CN CN201810803222.5A patent/CN109036593A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0160603A1 (en) * | 1984-04-11 | 1985-11-06 | Novatome | Plug closure for a fast neutron nuclear reactor core |
| JPH09281267A (en) * | 1996-04-10 | 1997-10-31 | Ishikawajima Harima Heavy Ind Co Ltd | Reactor pressure vessel |
| JP2005338097A (en) * | 2005-07-05 | 2005-12-08 | Toshiba Corp | Repair device and machining device for structure |
| CN1917095A (en) * | 2005-08-19 | 2007-02-21 | 中国核动力研究设计院 | Shell type reactor in normal presure and low temperature |
| CN103474104A (en) * | 2012-06-08 | 2013-12-25 | 中国核动力研究设计院 | Split-type integral pressurized water reactor with down-suspended basket |
| CN102842347A (en) * | 2012-10-08 | 2012-12-26 | 中国核工业华兴建设有限公司 | Special testing device for small measuring chamber of nuclear power plant reactor cavity |
| CN103106931A (en) * | 2013-02-04 | 2013-05-15 | 中国核动力研究设计院 | Reactor internal suitable for supercritical water-cooled reactor two-flow core |
| CN103106932A (en) * | 2013-02-04 | 2013-05-15 | 中国核动力研究设计院 | Flow-concentrating type two-flow super-critical water-cooled reactor |
| CN105957560A (en) * | 2016-07-05 | 2016-09-21 | 上海核工程研究设计院 | Reactor body structure of reactor of pressurized water reactor nuclear power plant |
| CN207124043U (en) * | 2017-07-26 | 2018-03-20 | 四川大学 | Reactor coolant presses down whirlpool and flow distribution device and reactor core internals |
| CN108062985A (en) * | 2017-12-28 | 2018-05-22 | 中广核研究院有限公司 | For the pressure vessel of reactor |
| CN108257686A (en) * | 2017-12-28 | 2018-07-06 | 中广核研究院有限公司 | Reactor, reactor main equipment and the water proof ring for reactor main equipment |
| CN208873480U (en) * | 2018-07-20 | 2019-05-17 | 中广核研究院有限公司 | A kind of novel core barrel structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110767337A (en) * | 2019-10-29 | 2020-02-07 | 中国原子能科学研究院 | Flange connection structure |
| CN110767337B (en) * | 2019-10-29 | 2021-08-20 | 中国原子能科学研究院 | Flange connection structure |
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