CN108039211A - Barricade in presurized water reactor integration heap top and the heap top - Google Patents
Barricade in presurized water reactor integration heap top and the heap top Download PDFInfo
- Publication number
- CN108039211A CN108039211A CN201711297405.6A CN201711297405A CN108039211A CN 108039211 A CN108039211 A CN 108039211A CN 201711297405 A CN201711297405 A CN 201711297405A CN 108039211 A CN108039211 A CN 108039211A
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- CN
- China
- Prior art keywords
- barricade
- plate
- heap top
- water reactor
- presurized water
- Prior art date
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Classifications
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C13/00—Pressure vessels; Containment vessels; Containment in general
- G21C13/02—Details
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C13/00—Pressure vessels; Containment vessels; Containment in general
- G21C13/02—Details
- G21C13/024—Supporting constructions for pressure vessels or containment vessels
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C13/00—Pressure vessels; Containment vessels; Containment in general
- G21C13/02—Details
- G21C13/028—Seals, e.g. for pressure vessels or containment vessels
-
- 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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- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The invention discloses the barricade in a kind of presurized water reactor integration heap top and the heap top, the integration heap top includes being cylindrical in shape the shroud component of structure, further include barricade, the barricade is installed on the upper end of shroud component, and cover board of the barricade as shroud component upper end, the through holes of multiple perforation barricade upper and lower ends are additionally provided with the barricade.The barricade includes plate-like barricade body, and the through hole of multiple perforation barricade body upper and lower ends is additionally provided with the barricade body.The integration heap top and barricade have the characteristics that space in simple in structure, easily manufactured, saving containment.
Description
Technical field
The present invention relates to presurized water reactor technical field, more particularly to the screen in a kind of presurized water reactor integration heap top and the heap top
Shield plate.
Background technology
C＆P systems and driving mechanism caused by control rod ejection accident refers to the capsul mechanical failure of control rod drive mechanism
The accident of pop-up.The function of missile roof barricade be prevent to drive in control rod ejection accident throw of lever casing, stick location probe component,
Shock-proof plate flies out with missiles such as actuated lever assemblies, avoids missile from causing to damage to other equipment in containment and containment.
The common structure form of presurized water reactor missile roof shielding both at home and abroad is the steel frame construction platform of cuboid formula at present, should
Steel frame construction platform is positioned on reactor pit, directly over reactor.Such steelframe platform by volume is big, and weight is big, lifting movement
It is time-consuming and laborious.During each reaction heap refueling outage, it is both needed to remove the platform, influences overhaul progress.At the same time need to also be in space
It is missile roof platform reserved location in narrow and small containment, causes space in containment nervous.
The content of the invention
For volume existing for existing presurized water reactor missile roof shielding construction set forth above is big, weight is big, lifting movement
The problem of time-consuming and laborious, big to spacial influence in containment, the present invention provides a kind of presurized water reactor integration heap top and the heap top
In barricade, the integration heap top and barricade have the characteristics that it is simple in structure, easily manufactured, save space in containment.
To solve the above problems, the barricade in presurized water reactor integration heap top provided by the invention and the heap top pass through it is following
Technical essential solves the problems, such as：Presurized water reactor integration heap top, including the shroud component of structure is cylindrical in shape, barricade is further included, institute
The upper end that barricade is installed on shroud component, and cover board of the barricade as shroud component upper end are stated, is also set on the barricade
It is equipped with the through hole of multiple perforation barricade upper and lower ends.
Specifically, the lower end of above shroud component is used to be connected with pressure vessels top cover, such as shroud component is put or consolidated
Due in the supporting table of pressure vessels top cover, control rod drive mechanism is seated on the tube socket of pressure vessels top cover, and control rod
Driving mechanism is enclosed in shroud component.Above through hole is used for the upper end for housing control rod drive mechanism, and above through hole is used for
Barricade can be passed through by ensureing stroke casing, stick location probe and the coil power plug of control rod drive mechanism, i.e., described logical
The actual quantity in hole is depending on the quantity of control rod drive mechanism, relative position and corresponding control rod drive mechanism between through hole
Relative position it is consistent.
Due in the prior art, being natively provided with control rod drive mechanism for controlling control rod drive mechanism enclosing
The shock-proof plate of cartridge module position in the radial direction, above shock-proof plate is the equal of relative to control rod drive mechanism side evagination
Fin.In above scheme, using the structure setting being fixed on barricade on shroud component, while set on the shield plates logical
Hole, the upper end that above through hole is used for control rod drive mechanism passes through barricade, in this way, causing control rod in capsul mechanical failure
When component and driving mechanism pop-up accident, control rod drive mechanism is fixed on control rod driving machine during up moving
Shock-proof plate on structure is up moved with control rod drive mechanism, since shock-proof plate thinner thickness rigidity itself is smaller, anti-
When the bottom of shake plate and barricade acts on, above shock-proof plate can reduce shock-proof plate and shielding by elastic deformation or plastic deformation
Interaction force between plate bottom, in this way, above barricade can not only play the purpose for preventing missile from flying out, leads at the same time
The deformation of shock-proof plate is crossed, the effect of cushioning control rod drive mechanism stress can be reached：In conventional art, control rod drive mechanism
The shielding construction of upper end and anti-pop-up directly collide and contact, due to control rod drive mechanism upper end, area itself is smaller, this is just
So that above impulsive contact force is actually very big, control rod drive mechanism can be caused by further crack damage, we
Shock-proof plate in case in control rod drive mechanism can play two layers of effect compared to the prior art, and one kind therein is fixed control
Position of the rod drive mechanism processed in shroud component radially, another is to be acted on as in control rod drive mechanism with barricade
Component, and when shock-proof plate and barricade interact, shock-proof plate can play preferable cushioning effect.Meanwhile eliminate
The shielding construction being installed in the prior art above pressure vessels top cover, is realized pressure vessel and is set with the integration of upper-part
Meter, in this way, can reach the structure setting of simplified heap roof construction, the manufacture easy to heap roof construction, the mesh for saving space in containment
's.
As the further technical solution in above-described presurized water reactor integration heap top, anti-seismic plate is further included, it is described
Anti-seismic plate is in flange plate-like, and the annular flange of evagination is additionally provided with the top of shroud component, further includes the second connection bolt,
The anti-seismic plate is bolted by the second connection bolt with annular flange；
The barricade is rounded, and the outside diameter of barricade is more than the diameter of bore of anti-seismic plate, further includes the first company
Connecting bolt, the barricade is bolted by the first connection bolt with anti-seismic plate, and barricade is as anti-seismic plate
The cover board of endoporus.
Above scheme provides a kind of specific integrated heap roof construction, in the structure, equivalent to the upper end of shroud component
It is provided with and is also laminated in the annular flange of flange plate-like, the anti-seismic plate in annular flange, anti-seismic plate and annular
After flange bolt connection, then barricade is secured by bolts in the middle part of anti-seismic plate.In this structure, the supporting of above antidetonation
Plate is used for the impact for bearing seismic (seismal, meanwhile, anti-seismic plate is as the intermediate connector between barricade and shroud component.
Due to enable barricade and anti-seismic plate to play respective function, it is desirable to both are required to have enough thickness,
If desired for the thickness for being arranged to anti-seismic plate between 80-120mm, 100mm such as is used, the thickness of barricade is between 20-
Between 40mm, 30mm is such as used, in this way, barricade itself and anti-seismic plate are respectively provided with larger weight, using by barricade
The mode being separately provided with anti-seismic plate, is not only convenient for barricade and the single individual lifting of anti-seismic plate, meanwhile, pacifying
, can be by first installing shroud component when filling control rod drive mechanism, then control rod drive mechanism is installed, then antidetonation supporting is installed
Plate, then install the mode of barricade, completes installation of the heap top part on pressure vessels top cover, and route is single is hung for above installation
Construction weight is lighter, and personnel easy to operation complete the Relatively orientation between component in operation.
In the present solution, since the position needs of the through hole are corresponding with each control rod drive mechanism, therefore each through hole is in sky
Interior position is particularly significant, for ease of determining position of the through hole in space, further includes the first positioning pin and second and determines
Position pin, first positioning pin and the second positioning pin at least two, the first positioning pin are used for barricade in anti-seismic plate
On position positioning, the second positioning pin be used for anti-seismic plate in annular flange position positioning., can in this positioning pin scheme
By in two components being stacked, blind hole being set in the component of lower end, through hole is set in the component of upper end, sold by corresponding
Nail with blind hole interference fit, with through hole clearance fit, meanwhile, positioning pin for the positioning of two components at least two
Mode, completes positioning of the upper member in lower side member.
For ease of concentrating the connection for being laid with cable and facilitating cable and each control rod drive mechanism, further include and be fixed on antidetonation
Cable testing bridge on support plate, one end that the cable testing bridge connects with anti-seismic plate are located at the outside of barricade.
For ease of lifting some or some components in the entirety on this integration heap top or integrated heap top, head cover is further included
Suspender, the head cover suspender are connected in any one of following three：Shroud component, anti-seismic plate, barricade.
It is air-cooled for ease of being carried out to control rod drive mechanism, aeration structure is additionally provided with the shroud component, it is described logical
The cooling wind for being used for control rod drive mechanism cooling is sent into the inside that wind structure is used for shroud component.
It is small as a kind of perforated area, in favor of the intensity of barricade and beneficial to the realization side for ensureing barricade shielding properties
Case, the through hole are waist-shaped hole, and stroke casing, the detection of rod position in the length direction of waist-shaped hole and control rod drive mechanism
Device, the orientation of coil power plug three are consistent.
The material of the barricade is carbon structure steel or stainless steel.
Meanwhile the invention also discloses the barricade in a kind of heap top, including plate-like barricade body, the shielding
The through hole of multiple perforation barricade body upper and lower ends is additionally provided with plate body.
Above barricade is used to be connected with shroud component, can not only realize heap roof construction integrated design, is tied easy to heap top
Processing, the manufacture of structure, while existing bulky shielding construction is may replace, beneficial to space in saving containment.
It is small as a kind of perforated area, in favor of the intensity of barricade and beneficial to the realization side for ensureing barricade shielding properties
Case, the through hole are waist-shaped hole, and stroke casing, the detection of rod position in the length direction of waist-shaped hole and control rod drive mechanism
Device, the orientation of coil power plug three are consistent.
The invention has the advantages that：
In heap top provided above and barricade scheme, using the structure setting being fixed on barricade on shroud component,
When capsul mechanical failure causes C＆P systems and driving mechanism ejects accident, above barricade can not only play prevention
The purpose that missile flies out, meanwhile, the shielding construction being installed in the prior art above pressure vessels top cover is eliminated, is realized
Pressure vessel is with the integrated design of upper-part, in this way, can reach the structure setting of simplified heap roof construction, easy to heap roof construction
Manufacture, the purpose for saving space in containment.
Brief description of the drawings
Fig. 1 is assembling of one specific embodiment in presurized water reactor integration heap top of the present invention on pressure vessels top cover
Figure；
Fig. 2 be one specific embodiment in presurized water reactor integration heap top of the present invention in, reflection control rod drive mechanism,
Barricade, anti-seismic plate, the installation diagram of shroud component structure and connection relation；
Fig. 3 is the structure diagram of barricade in one specific embodiment in presurized water reactor integration heap top of the present invention.
Scheming acceptance of the bid note is respectively：1st, pressure vessels top cover, 2, shroud component, 3, aeration structure, 4, control rod drive mechanism,
5th, anti-seismic plate, 6, barricade, 7, cable testing bridge, 8, head cover suspender, the 9, first connection bolt, the 10, first positioning pin, 11,
Second positioning pin, the 12, second connection bolt, 13, through hole.
Embodiment
With reference to embodiment, the present invention is described in further detail, but the present invention is not limited only to following implementation
Example：
Embodiment 1：
As shown in Figure 1 to Figure 3, presurized water reactor integration heap top, including the shroud component 2 of structure is cylindrical in shape, further include shielding
Plate 6, the barricade 6 are installed on the upper end of shroud component 2, and cover board of the barricade 6 as 2 upper end of shroud component, the screen
The through hole 13 of multiple perforation 6 upper and lower ends of barricade is additionally provided with shield plate 6.
Specifically, the lower end of above shroud component 2 is used to be connected with pressure vessels top cover 1, such as shroud component 2 is put or
It is fixed in the supporting table of pressure vessels top cover 1, control rod drive mechanism 4 is seated on the tube socket of pressure vessels top cover 1, and is controlled
Rod drive mechanism 4 processed is enclosed in shroud component 2.Above through hole 13 is used for the upper end for housing control rod drive mechanism 4, the above
Through hole 13 is used to ensure that the stroke casing, stick location probe and coil power plug of control rod drive mechanism 4 can to pass through shielding
Plate 6, i.e., the actual quantity of described through hole 13 depending on the quantity of control rod drive mechanism 4, relative position between through hole 13 with
The relative position of corresponding control rod drive mechanism 4 is consistent.
In above scheme, using the structure setting being fixed on barricade 6 on shroud component 2, in capsul mechanical failure
When causing C＆P systems and driving mechanism pop-up accident, above barricade 6 can not only play the mesh for preventing missile from flying out
, meanwhile, the shielding construction for being installed on the top of pressure vessels top cover 1 in the prior art is eliminated, is realized more than pressure vessel
The integrated design of component, in this way, can reach the structure setting of simplified heap roof construction, the manufacture easy to heap roof construction, saving peace
The purpose in space in full shell.
Meanwhile the invention also discloses the barricade 6 in a kind of heap top, including plate-like 6 body of barricade, the screen
The through hole 13 of multiple perforation 6 body upper and lower ends of barricade is additionally provided with 6 body of shield plate.
Above barricade 6 is used to be connected with shroud component 2, heap roof construction integrated design can be not only realized, easy to heap top
Processing, the manufacture of structure, while existing bulky shielding construction is may replace, beneficial to space in saving containment.
Embodiment 2：
The present embodiment is further qualified on the basis of embodiment 1, as shown in Figure 1 to Figure 3, as above-described pressure
The further technical solution in water-water reactor integration heap top, further includes anti-seismic plate 5, and the anti-seismic plate 5 is in flange plate-like, is enclosed
The top of cartridge module 2 is additionally provided with the annular flange of evagination, further includes the second connection bolt 12, and the anti-seismic plate 5 passes through
Second connection bolt 12 is bolted with annular flange；
The barricade 6 is rounded, and the outside diameter of barricade 6 is more than the diameter of bore of anti-seismic plate 5, further includes first
Bolt 9 is connected, the barricade 6 is bolted by the first connection bolt 9 with anti-seismic plate 5, and barricade 6 is used as antidetonation
The cover board of 5 endoporus of support plate.
Above scheme provides a kind of specific integrated heap roof construction, in the structure, equivalent to the upper end of shroud component 2
It is provided with and is also laminated in the annular flange of flange plate-like, the anti-seismic plate 5 in annular flange, anti-seismic plate 5 and ring
After the connection of shape flange bolt, then barricade 6 is secured by bolts in the middle part of anti-seismic plate 5.In this structure, above antidetonation
Support plate 5 is used to bear the impact of seismic (seismal, meanwhile, anti-seismic plate 5 is as between barricade 6 and shroud component 2
Between connector.Due to enable barricade 6 and anti-seismic plate 5 to play respective function, it is desirable to which both are required to have
Enough thickness, in the present embodiment, anti-seismic plate 5 uses carbon structural steels, thickness 100mm, and barricade 6 uses carbon knot
Structure steel, thickness 30mm, in this way, barricade 6 itself and anti-seismic plate 5 are respectively provided with larger weight, using by barricade 6 with
The mode that anti-seismic plate 5 is separately provided, is not only convenient for barricade 6 and the single individual lifting of anti-seismic plate 5, meanwhile,
, can be by first installing shroud component 2 when control rod drive mechanism 4 is installed, then control rod drive mechanism 4 is installed, then antidetonation is installed
Support plate 5, then the mode of barricade 6 is installed, complete installation of the heap top part on pressure vessels top cover 1, above installation route
Single to be hung that construction weight is lighter, personnel easy to operation complete the Relatively orientation between component in operation.
In the present solution, since the position needs of the through hole 13 are corresponding with each control rod drive mechanism 4, therefore each through hole 13
Position in space is particularly significant, for ease of determining position of the through hole 13 in space, further includes the first positioning pin 10
With the second positioning pin 11,10 and second positioning pin 11 of the first positioning pin at least two, the first positioning pin 10 is used to shield
Position positioning of the shield plate 6 on anti-seismic plate 5, the second positioning pin 11 are used for position of the anti-seismic plate 5 in annular flange
Positioning., can be by the way that in two components being stacked, blind hole, the component of upper end be set in the component of lower end in this positioning pin scheme
Middle setting through hole, by corresponding pin and blind hole interference fit and through hole clearance fit, meanwhile, determine for two components
The mode of the positioning pin at least two of position, completes positioning of the upper member in lower side member.
Be laid with cable for ease of concentrating and facilitate the connection of cable and each control rod drive mechanism 4, further include be fixed on it is anti-
Cable testing bridge 7 on seismic support plate 5, one end that the cable testing bridge 7 connects with anti-seismic plate 5 are located at the outside of barricade 6.
For ease of lifting some or some components in the entirety on this integration heap top or integrated heap top, head cover is further included
Suspender 8, the head cover suspender 8 are connected in any one of following three：Shroud component 2, anti-seismic plate 5, barricade 6.
It is air-cooled for ease of being carried out to control rod drive mechanism 4, aeration structure 3 is additionally provided with the shroud component 2, it is described
The inside that aeration structure 3 is used for shroud component 2, which is sent into, is used for the cooling wind that control rod drive mechanism 4 cools down.
It is small as a kind of perforated area, in favor of the intensity of barricade 6 and beneficial to the realization for ensureing 6 shielding properties of barricade
Scheme, the through hole 13 are waist-shaped hole, and the length direction of waist-shaped hole and stroke casing, rod position in control rod drive mechanism 4
Detector, the orientation of coil power plug three are consistent.
The material of the barricade 6 is carbon structure steel or stainless steel.
Above content is to combine the further description that specific preferred embodiment makees the present invention, it is impossible to assert this
The embodiment of invention is confined to these explanations.For general technical staff of the technical field of the invention,
The other embodiment drawn in the case where not departing from technical scheme, should be included within the scope of the present invention.
Claims (10)
1. presurized water reactor integration heap top, including it is cylindrical in shape the shroud component (2) of structure, it is characterised in that further include barricade
(6), the barricade (6) is installed on the upper end of shroud component (2), and lid of the barricade (6) as shroud component (2) upper end
Plate, the through holes (13) of multiple perforation barricade (6) upper and lower ends are additionally provided with the barricade (6).
2. presurized water reactor integration heap top according to claim 1, it is characterised in that anti-seismic plate (5) is further included, it is described
Anti-seismic plate (5) is in flange plate-like, and the annular flange of evagination is additionally provided with the top of shroud component (2), further includes the second company
Connecting bolt (12), the anti-seismic plate (5) are bolted by the second connection bolt (12) with annular flange；
The barricade (6) is rounded, and the outside diameter of barricade (6) is more than the diameter of bore of anti-seismic plate (5), further includes the
One connection bolt (9), the barricade (6) is bolted by the first connection bolt (9) with anti-seismic plate (5), and is shielded
Cover board of the plate (6) as anti-seismic plate endoporus.
3. presurized water reactor integration heap top according to claim 2, it is characterised in that further include the first positioning pin (10) and
Two positioning pins (11), first positioning pin (10) and the second positioning pin (11) at least two, the first positioning pin (10) are used
In position positioning of the barricade (6) on anti-seismic plate (5), the second positioning pin (11) is used for anti-seismic plate (5) in annular
Position positioning on flange.
4. presurized water reactor integration heap top according to claim 2, it is characterised in that further include and be fixed on anti-seismic plate
(5) cable testing bridge (7) on, one end that the cable testing bridge (7) connects with anti-seismic plate (5) are located at the outer of barricade (6)
Side.
5. presurized water reactor integration heap top according to claim 2, it is characterised in that further include head cover suspender (8), the top
Lid suspender (8) is connected in any one of following three：Shroud component (2), anti-seismic plate (5), barricade (6).
6. presurized water reactor integration heap top according to claim 1, it is characterised in that also set up on the shroud component (2)
There is aeration structure (3), the inside that the aeration structure (3) is used for shroud component (2), which is sent into, is used for control rod drive mechanism (4)
The cooling wind of cooling.
7. presurized water reactor integration heap top according to claim 1, it is characterised in that the through hole (13) is waist-shaped hole,
And stroke casing in the length direction of waist-shaped hole and control rod drive mechanism (4), stick location probe, coil power plug three
Orientation is consistent.
8. presurized water reactor integration heap top as claimed in any of claims 1 to 7, it is characterised in that the barricade
(6) material is carbon structure steel or stainless steel.
9. the barricade in heap top, it is characterised in that including plate-like barricade body, also set up on the barricade body
There is the through hole (13) of multiple perforation barricade body upper and lower ends.
10. the barricade in presurized water reactor integration heap top according to claim 9 and the heap top, it is characterised in that described
Through hole (13) is waist-shaped hole, and the length direction of waist-shaped hole is detected with stroke casing, rod position in control rod drive mechanism (4)
Device, the orientation of coil power plug three are consistent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711297405.6A CN108039211B (en) | 2017-12-08 | 2017-12-08 | Pressurized water reactor integrated reactor top and shielding plate in reactor top |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711297405.6A CN108039211B (en) | 2017-12-08 | 2017-12-08 | Pressurized water reactor integrated reactor top and shielding plate in reactor top |
Publications (2)
| Publication Number | Publication Date |
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| CN108039211A true CN108039211A (en) | 2018-05-15 |
| CN108039211B CN108039211B (en) | 2019-12-24 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109872827A (en) * | 2019-03-11 | 2019-06-11 | 中国核动力研究设计院 | A kind of barrel-type integration heap roof construction suitable for high temperature resistant driving mechanism |
| CN109920563A (en) * | 2019-03-11 | 2019-06-21 | 中国核动力研究设计院 | A kind of truss-like integration heap roof construction suitable for high temperature resistant driving mechanism |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109872827A (en) * | 2019-03-11 | 2019-06-11 | 中国核动力研究设计院 | A kind of barrel-type integration heap roof construction suitable for high temperature resistant driving mechanism |
| CN109920563A (en) * | 2019-03-11 | 2019-06-21 | 中国核动力研究设计院 | A kind of truss-like integration heap roof construction suitable for high temperature resistant driving mechanism |
| CN109920563B (en) * | 2019-03-11 | 2022-06-10 | 中国核动力研究设计院 | Truss type integrated pile top structure suitable for high-temperature-resistant driving mechanism |
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| Publication number | Publication date |
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| CN108039211B (en) | 2019-12-24 |
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