CN107221368A - Reactor coolant presses down whirlpool and flow distribution device and reactor core internals - Google Patents
Reactor coolant presses down whirlpool and flow distribution device and reactor core internals Download PDFInfo
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- CN107221368A CN107221368A CN201710621581.4A CN201710621581A CN107221368A CN 107221368 A CN107221368 A CN 107221368A CN 201710621581 A CN201710621581 A CN 201710621581A CN 107221368 A CN107221368 A CN 107221368A
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- 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
- G21C19/04—Means for controlling flow of coolant over objects being handled; Means for controlling flow of coolant through channel being serviced, e.g. for preventing "blow-out"
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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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- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Structure Of Emergency Protection For Nuclear Reactors (AREA)
Abstract
The invention provides a kind of reactor coolant suppression whirlpool and flow distribution device and reactor core internals, belong to technical field of nuclear power.The reactor core internals include pressure vessel, reactor core, reactor core lower supporting plate and reactor coolant suppression whirlpool and flow distribution device.Reactor core is located in pressure vessel, and reactor core lower supporting plate is connected to the bottom of reactor core, and reactor coolant suppression whirlpool and flow distribution device are connected to the bottom of reactor core lower supporting plate.Compared with prior art, the assignment of traffic number of times that the present invention is carried out to cooling agent is more, effective filling has been carried out to the space of pressure vessel lower chambers, avoid the generation of pressure vessel lower chambers vortex, and effective mix is carried out to cooling agent, and the apparatus structure is simple with type of attachment, improves reliability of structure, installation and repairing convenient.
Description
Technical field
The present invention relates to technical field of nuclear power, press down whirlpool in particular to a kind of reactor coolant and assignment of traffic is filled
Put and reactor core internals.
Background technology
To meet the requirement of nuclear power plant reactor thermal-hydraulic, reactor overall performance is lifted, into the cooling agent of reactor core
It is required that it is evenly distributed, often need to set flow distribution device when being unsatisfactory for uniformity requirement.Reactor pressure vessel lower chambers
Space is limited, and installation, the maintenance of component are relatively difficult, thus on the premise of assignment of traffic is met, should try one's best simplifies structure, carries
High stability and reliability.In the generation of nuclear power two and two generation Fortschrittlicher Druckwasser Reaktors that home and abroad is run at present, In-core Instrumentation is by pressure
Container low head is drawn, in lower chambers there is provided secondary supporting structure.In the measurement of third generation pressurized water reactor core on pressure vessel
End socket is drawn, and greatly simplify reactor cavity of resorption cell structure, but is worked as cooling agent and flowed into from pressure container inlet ozzle,
And from circular fall-off chamber enter lower chambers when, will should be runner drastically change and dome-type end socket depth it is larger and in lower chambers
It is interior to produce substantial amounts of vortex and flow field complexity, cause reactor core entrance area flow field to produce inhomogeneities, enter reactor core to meet
The requirement that cooling agent is evenly distributed, lifting reactor overall performance in reactor lower chambers, it is necessary to set a kind of assignment of traffic dress
Put, and require that the device assignment of traffic and suppression venturi effect are excellent.
A kind of reactor coolant suppression whirlpool and assignment of traffic that can compare and be uniformly distributed that cooling agent suppression is vortexed is provided
Device and reactor core internals, this has important realistic meaning for the development of nuclear power technology.
The content of the invention
Object of the present invention is to provide a kind of reactor coolant suppression whirlpool and flow distribution device, it can be relatively more equal
Cooling agent is distributed evenly, and can preferably suppress the generation of vortex.
Another object of the present invention is to provide a kind of reactor core internals, which employs the suppression of above-mentioned reactor coolant
Whirlpool and flow distribution device, so that cooling agent compares evenly into heap in-core, and can suppress the generation of vortex.
What the present invention was realized in:
A kind of reactor coolant suppression whirlpool and flow distribution device, flow in reactor pressure vessel to cooling agent
Amount distribution, the reactor core of the reactor includes cylindric hanging basket component, the reactor coolant suppression whirlpool and assignment of traffic dress
Put including:
Annular component, the annular component is hollow housing, including the large end face and small end face being parallel to each other, the ring-type
Multiple through holes are provided with component, the large end face is connected with the hanging basket component,
Multiple through holes, the end face of first housing and the ring-type structure are provided with first housing, first housing
The small end face connection of part, the first shell body is located at the outside of the annular component.
Further,
The reactor coolant suppression whirlpool and flow distribution device also include being provided with the second housing, second housing
Multiple through holes, the end face of second housing is connected with the small end face of the annular component, and the second shell body is located at the ring
The inside of shape component.
Further,
First housing is dome-type, semielliptical type, dish-like, pyramid type or cylindrical type;Second housing is hemisphere
Type, semielliptical type, dish-like, pyramid type or cylindrical type.
Further,
First housing and second housing can be shape identical dome-type, semielliptical type, butterfly-type, pyramid type
Or cylindrical type, or the mutual two-by-two of dome-type, semielliptical shape, dish-like, pyramid type or the cylindrical type that shape is differed is appointed
The structure of meaning combination, first housing and second housing composition can for symmetrical ball-type, spheroid shape structure etc., or
For unsymmetric structure.
Further,
The hull shape of the annular component is taper, cylinder cylinder, the shape of single-curved surface composition or multiple curved surfaces
Combine the shape constituted.
Further,
The annular component is the shape cut by hemispherical housing, and the small end face is cut surface.
Further,
Through hole distribution and of different sizes or phase on first housing, second housing and on the annular component
Together.
Further,
The annular component is provided with reinforcement.
Further,
First housing is connected by flange with the annular component;Second housing passes through flange and the ring-type
Component is connected.
A kind of reactor core internals, the reactor core internals include:
Include cylinder and end socket in pressure vessel, the pressure vessel, the end socket is hemispherical housing, and the end socket connects
One end of the cylinder is connected to, the end socket protrudes towards the outside of the cylinder;
Reactor core, the reactor core is arranged in the pressure vessel, and the reactor core includes hanging basket component, and the hanging basket component is
It is cylindric;
Reactor core lower supporting plate, the reactor core lower supporting plate is to be provided with circular plate-like shape structure, the reactor core lower supporting plate
Multiple through holes, the reactor core lower supporting plate is connected to the lower end of the hanging basket component;And
Described reactor coolant suppression whirlpool and flow distribution device;
The reactor core lower supporting plate is connected with the lower end of the hanging basket component, the hanging basket component and cylinder-shaped cyclization
Shape space;
The cooling agent suppression whirlpool and flow distribution device are split and filled to reactor pressure vessel lower chambers space.
The beneficial effects of the invention are as follows:The reactor coolant that the present invention is obtained by above-mentioned design presses down whirlpool and assignment of traffic
Device and reactor core internals, in use, cooling agent passes through the annular space between hanging basket component and the cylinder of pressure vessel
Enter in pressure vessel, and then enter in the lower chambers between cooling device and end socket, portion cooling agent passes through ring-type structure
Through hole on part is entered inside annular component, and another part cooling agent is entered by the first housing of annular component bottom
In first housing, and then mixing in annular component is entered, entered eventually through reactor core lower supporting plate in reactor core.First housing
Effective stop is carried out to coolant fluid, annular component has carried out effective Ground Split, annular component and first shell to cooling agent
Body collective effect inhibits the generation of vortex.Also, annular component and the first housing are distributed cooling agent, so that
Cooling agent in annular component is closer to laminar condition, and the temperature of cooling agent is more uniform.When cooling agent enters eventually into reactor core
After interior, the cooling agent of Uniform Flow can be cooled down more efficiently to reactor core.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme of embodiment of the present invention, it will use below required in embodiment
Accompanying drawing be briefly described, it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, therefore be not to be seen as
It is the restriction to scope, for those of ordinary skill in the art, on the premise of not paying creative work, can be with root
Other related accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the reactor coolant suppression whirlpool and flow distribution device and reactor section view that embodiment of the present invention is provided
Figure;
Fig. 2 is the reactor coolant suppression whirlpool that embodiment of the present invention is provided and flow distribution device and structure in reactor
Part assembling schematic diagram;
Fig. 3 is the structural representation for the annular component that embodiment of the present invention is provided;
Fig. 4 is the top view for Fig. 3 that embodiment of the present invention is provided;
Fig. 5 is the structural representation for the second housing that embodiment of the present invention is provided;
Fig. 6 is the structural representation for the first housing that embodiment of the present invention is provided.
Icon:1- pressure vessel lower chambers;2- pressure vessels;3- circular fall-off chambers;4- hanging basket components;Supported under 5- reactor cores
Plate;6- annular components;61- reinforcements;62- annular components upper surface flange;63- third through-holes;64- annular components lower surface method
It is blue;The housings of 7- second;The through holes of 71- second;72- second flanges;The housings of 8- first;81- first through hole;82- first flanges.
Embodiment
To make the purpose, technical scheme and advantage of embodiment of the present invention clearer, below in conjunction with present invention implementation
Accompanying drawing in mode, the technical scheme in embodiment of the present invention is clearly and completely described, it is clear that described reality
The mode of applying is a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ability
The every other embodiment that domain those of ordinary skill is obtained under the premise of creative work is not made, belongs to the present invention
The scope of protection.
Therefore, the detailed description of embodiments of the present invention below to providing in the accompanying drawings is not intended to limit requirement and protected
The scope of the present invention of shield, but it is merely representative of the selected embodiment of the present invention.Based on the embodiment in the present invention, ability
The every other embodiment that domain those of ordinary skill is obtained under the premise of creative work is not made, belongs to the present invention
The scope of protection.
In the description of the invention, it is to be understood that the term of indicating position or position relationship is based on shown in accompanying drawing
Orientation or position relationship, be for only for ease of the description present invention and simplify description, rather than indicate or imply signified equipment
Or element there must be specific orientation, with specific azimuth configuration and operation, therefore it is not considered as limiting the invention.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally;Can be that machinery connects
Connect or electrically connect;Can be joined directly together, can also be indirectly connected to by intermediary, can be in two elements
The connection in portion or the interaction relationship of two elements.For the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
In the description of the invention, it is necessary to explanation, term " " center ", " on ", " under ", "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, or should
Orientation or position relationship that invention product is usually put when using, are for only for ease of the description present invention and simplify description, without
It is that instruction or the signified device of hint or element must have specific orientation, with specific azimuth configuration and operation, therefore not
It is understood that as limitation of the present invention.In addition, term " first ", " second ", " the 3rd " etc. are only used for distinguishing description, and it can not manage
Solve to indicate or imply relative importance.
In addition, the term such as term " level ", " vertical ", " pendency " is not offered as requiring part abswolute level or pendency, and
It is to be slightly tilted.As " level " only refers to that its direction, with respect to more level for " vertical ", is not the expression structure
Must be fully horizontal, but can be slightly tilted.
In the present invention, unless otherwise clearly defined and limited, fisrt feature can be with or below second feature
Directly contacted including the first and second features, can also include the first and second features not be direct contact but by them it
Between other characterisation contact.Moreover, fisrt feature is on second feature, top and above to include fisrt feature special second
Directly over levying and oblique upper, or fisrt feature level height is merely representative of higher than second feature.Fisrt feature second feature it
Under, lower section and fisrt feature included below are immediately below second feature and obliquely downward, or are merely representative of fisrt feature level height
Less than second feature.
Embodiment:
Such as Fig. 1 and Fig. 2, a kind of reactor coolant suppression whirlpool and flow distribution device and reactor are present embodiments provided
Inner member, reactor core internals include pressure vessel 2, reactor core, reactor core lower supporting plate 5 and reactor coolant suppression whirlpool and flow
Distributor.Reactor core is located in pressure vessel 2, and reactor core lower supporting plate 5 is connected to the bottom of reactor core, reactor coolant suppression whirlpool and
Flow distribution device is connected to the bottom of reactor core lower supporting plate 5.
Such as Fig. 1, pressure vessel 2 is interior to include cylinder and end socket, and end socket is hemispherical housing, and end socket is connected to the one of cylinder
End, end socket protrudes towards the outside of cylinder.Reactor core includes hanging basket component 4, and hanging basket component 4 is cylindrical shape, reactor core lower supporting plate 5
To be provided with multiple through holes in circular plate-like shape structure, and reactor core lower supporting plate 5.Under reactor core lower supporting plate 5 and hanging basket component 4
End connection, hanging basket component 4 circularizes space with cylinder-shaped.
Such as Fig. 1 and Fig. 2, reactor coolant suppression whirlpool and flow distribution device include the housing 8 of annular component 6 and first, ring
Shape component 6 is hollow housing, including the large end face and small end face being parallel to each other, large end face is provided with annular component upper surface flange
62, for being connected with reactor core;Small end face is provided with annular component lower surface flange 64, for being connected with the first housing 8.Ring-type structure
Multiple third through-holes 63 are provided with part 6, are passed through for cooling agent.First housing 8 includes an end face so that the first housing 8
Do not close on the whole, first flange 82 is provided with end face;Multiple confession cooling agents pass through first is provided with first housing 8
Through hole 81.First housing 8 is arranged on the outside of annular component 6 so that the first housing 8 is outwardly relative to annular component 6.
Further, reactor coolant suppression whirlpool and flow distribution device also include the second housing 7, the second housing 7 and first
The structure of housing 8 is identical, and the second through hole 71 is provided with the second housing 7.Second flange 72 is provided with the end face of second housing 7.
The end face of second housing 7 is connected with the small end face of annular component 6, and difference is, the second housing 7 is arranged on the interior of annular component 6
Portion.First housing 8 and the second housing 7 surround a cushion space.
Further, such as Fig. 3 and Fig. 4, annular component 6 is the shape cut by hemispherical housing, and cut surface with
The large end face of hemispherical housing is parallel;That is, hemispherical housing necessarily includes an annular end face, and hemispherical housing is carried out
Cutting, and cut surface, parallel to the annular end face of hemispherical housing, the shape after cutting is the shape of annular component 6.
It should be noted that above-mentioned cutting mode is intended merely to facilitate the shape of description annular component 6, annular structure is not represented inevitable
It is to be obtained by way of cutting.Certainly, annular component can also be other shapes, for example can for taper, cylinder or
The shape that multiple curved surfaces are constituted.
In addition, in order to prevent annular component 6 from deforming, reinforcement 61 is provided with annular component 6.Certainly, implement other
In example, reinforcement can be not provided with, but uses the annular component compared with thick wall material, to reach in complicated coolant flow field
Ensure enough intensity and rigidity.
Such as Fig. 4 and Fig. 5, the first housing 8 and the second housing 7 are Loadings On Hemispherical Shell shape, including circular end face.First housing
Upper flange is provided with 8 circular end face, the first housing 8 is connected by upper flange with the small end face of annular component 6.Second shell
Lower flange is provided with the circular end face of body 7, the second housing 7 is connected by lower flange with the small end face of annular component 6.First
The housing 7 of housing 8 and second surrounds spherical shape housing jointly.Certainly, in other embodiments, first housing and described second
Housing can be shape identical dome-type, semielliptical type, butterfly-type, pyramid type or cylindrical type, or what shape was differed
Dome-type, semielliptical shape, dish-like, pyramid type or the mutual two-by-two of cylindrical type are combined, first housing and described second
The structure of housing composition can be symmetrical ball-type, spheroid shape structure etc., or be unsymmetric structure.For example, the first housing is
Coniform, the second housing is hemispherical;Or first housing to be cylindric, the second housing is coniform.
The reactor coolant suppression whirlpool and the operation principle of flow distribution device that the present embodiment is provided are as follows:
After reactor coolant suppression whirlpool and flow distribution device are assembled in pressure vessel 2, annular component 6, first shell
The housing 7 of body 8 and second has carried out effective segmentation and filling to the space of reactor pressure vessel lower chambers 1, and cooling agent is carried out
Mix and flow.Cooling agent enters pressure vessel lower chambers 1 by annular space, portion cooling agent pass through annular component 6 the
Three through holes 63 are directly entered it and enclose region, and another part cooling agent flows to end socket bottom with the constraint of the end socket of pressure vessel 2,
Set the first housing 8 that flow distribution device can be made to enter as far as possible to the spherical shell cover bottom space of pressure vessel 2 in the lower end of annular component 6
The effective filling of row, and when coolant flow through herein when, due to the stop of the first housing 8, it is suppressed that the generation of vortex simultaneously has
Effect is mixed, and preliminary shunting has been carried out to cooling agent.Upper and lower hemispheres type knot is entered by the first through hole 81 of the first housing 8
The cooling agent that structure surrounds region can carry out liquid in the region and mix, and when cooling agent passes through second on the second housing 7
After through hole 71, the second housing 7 has carried out secondary assignment of traffic to cooling agent;Supported from the through hole on annular component 6 into reactor core
The cooling agent in plate porch region is with the cooling for entering core support plate porch region through the second through hole 71 on the second housing 7
Agent is mutually mixed, and makes it carry out secondary mixing and shunting to cooling agent due to being provided with the second housing 7.
Reactor coolant presses down whirlpool and flow distribution device together with reactor core reactor core lower supporting plate 5 to entering Core cooling agent
Shunted, the component make cooling agent have been carried out mixing twice before the entrance of reactor core lower supporting plate 5 in the case where entering reactor core and
Shunting, adds the shunting action of reactor core reactor core lower supporting plate 5, cooling agent has been carried out three times before being exchanged heat into reactor core
Assignment of traffic, then assignment of traffic is more uniform, can fully meet the requirement that reactor fuel component is homogenized to flow.
Compared with prior art, the assignment of traffic number of times that the present invention is carried out to cooling agent is more, to pressure vessel lower chambers 1
Space carried out effective filling, it is to avoid the generation that pressure vessel lower chambers 1 are vortexed, and effective stir is carried out to cooling agent
It is mixed, and the apparatus structure is simple with type of attachment, improves reliability of structure, installation and repairing convenient.
It should be noted that the present embodiment is preferred embodiment, in other embodiments, the first housing can be semielliptical
Type, dish-like, pyramid type or cylindrical type;It can also be semielliptical type, dish-like, pyramid type or cylindrical type that second housing, which is,.
In addition, in other embodiments, through hole distribution and size on the first housing, the second housing and on annular component are not
With or it is identical.And can be according to coolant flow field, respectively to the aperture and hole of the flowing water through hole on three parts on housing
Distribution is specifically arranged, is mixed and current balance function with reaching more preferable cooling agent.For example, the third through-hole of annular component can be with
What is set is more relatively small, more cooling agents is flowed into the bottom of lower head of pressure vessel using annular component as constraint
Portion, makes mix effect of first housing to liquid stronger;And the ratio third through-hole that the first through hole on the first housing can be set
Aperture is a little big, to reduce the circulating resistance of flow, while playing a part of suppression whirlpool and flowing;Secondly, the second housing is being set
On the second through hole when, the somewhat a little bit smaller point of ratio first through hole that its aperture can be set, to strengthen the effect that its flow is divided equally.
And it can be set respectively for the through hole distribution on three parts, to adjust the through hole distribution density on its housing;Meanwhile,
The setting of through-hole aperture on three parts is not limited to the description of above example, can be equal according to coolant flow field and flow
Demand is divided to carry out rational setting pore size.
The preferred embodiment of the present invention is the foregoing is only, is not intended to limit the invention, for this area
For technical staff, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made is any
Modification, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (10)
1. a kind of reactor coolant suppression whirlpool and flow distribution device, flow is carried out in reactor pressure vessel to cooling agent
Distribution, the reactor core of the reactor includes cylindric hanging basket component, it is characterised in that the reactor coolant suppression whirlpool and stream
Amount distributor includes:
Annular component, the annular component is hollow housing, including the large end face and small end face being parallel to each other, the annular component
On be provided with multiple through holes, the large end face is connected with the hanging basket component,
Multiple through holes, end face and the annular component of first housing are provided with first housing, first housing
Small end face is connected, and the first shell body is located at the outside of the annular component.
2. reactor coolant suppression whirlpool according to claim 1 and flow distribution device, it is characterised in that the reactor
Cooling agent presses down whirlpool and flow distribution device and also includes being provided with multiple through holes, described second on the second housing, second housing
The end face of housing is connected with the small end face of the annular component, and the second shell body is located at the inside of the annular component.
3. reactor coolant suppression whirlpool according to claim 2 and flow distribution device, it is characterised in that the first shell
Body is dome-type, semielliptical type, dish-like, pyramid type or cylindrical type;Second housing is dome-type, semielliptical type, dish-like, round
Tapered or cylindrical type.
4. reactor coolant suppression whirlpool according to claim 2 and flow distribution device, it is characterised in that the first shell
Body and second housing can be shape identical dome-type, semielliptical type, butterfly-type, pyramid type or cylindrical type, or
Any combination mutual two-by-two for dome-type, semielliptical shape, dish-like, pyramid type or the cylindrical type that shape is differed, the first shell
The structure of body and second housing composition can be symmetrical ball-type, spheroid shape structure etc., or be unsymmetric structure.
5. reactor coolant suppression whirlpool according to claim 1 and flow distribution device, it is characterised in that the ring-type structure
The hull shape of part is the shape of taper, cylinder cylinder, the shape that single-curved surface is constituted or multiple surface compositions composition.
6. reactor coolant suppression whirlpool according to claim 2 and flow distribution device, it is characterised in that
The annular component is the shape cut by hemispherical housing, and the small end face is cut surface.
7. reactor coolant suppression whirlpool according to claim 2 and flow distribution device, it is characterised in that the first shell
Through hole on body, second housing and on the annular component is distributed and of different sizes or identical.
8. reactor coolant suppression whirlpool according to claim 1 and flow distribution device, it is characterised in that the ring-type structure
Part is provided with reinforcement.
9. reactor coolant suppression whirlpool according to claim 2 and flow distribution device, it is characterised in that the first shell
Body is connected by flange with the annular component;Second housing is connected by flange with the annular component.
10. a kind of reactor core internals, it is characterised in that the reactor core internals include:
Include cylinder and end socket in pressure vessel, the pressure vessel, the end socket is hemispherical housing, and the end socket is connected to
One end of the cylinder, the end socket protrudes towards the outside of the cylinder;
Reactor core, the reactor core is arranged in the pressure vessel, and the reactor core includes hanging basket component, and the hanging basket component is cylinder
Shape;
Reactor core lower supporting plate, the reactor core lower supporting plate is circular plate-like shape structure, is provided with the reactor core lower supporting plate multiple
Through hole, the reactor core lower supporting plate is connected to the lower end of the hanging basket component;And
Reactor coolant suppression whirlpool and flow distribution device described in any one of claim 1 to 9;
The reactor core lower supporting plate is connected with the lower end of the hanging basket component, and the hanging basket component circularizes sky with the cylinder-shaped
Between;
The cooling agent suppression whirlpool and flow distribution device are split and filled to reactor pressure vessel lower chambers space.
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WO2023118920A1 (en) * | 2021-12-22 | 2023-06-29 | Framatome | Flow calming assembly for nuclear reactor, and associated reactor and method |
WO2024050939A1 (en) * | 2022-09-09 | 2024-03-14 | 深圳中广核工程设计有限公司 | Reactor vortex suppression and flow distribution device |
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