CN207489486U - Core component sodium flow system - Google Patents
Core component sodium flow system Download PDFInfo
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- CN207489486U CN207489486U CN201720781526.7U CN201720781526U CN207489486U CN 207489486 U CN207489486 U CN 207489486U CN 201720781526 U CN201720781526 U CN 201720781526U CN 207489486 U CN207489486 U CN 207489486U
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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 is related to a kind of core component sodium flow system, including：Core supporting structure；Element is sheltered, the masking element restriction is arranged at least one masking element opening at the first height of the masking element, wherein the masking element is arranged on the first side of the core supporting structure；Be configured to it is described masking element cooperation flowing stack device, wherein it is described flowing stack device include：Limit the walls of multiple flowing stack device entrances, wherein the multiple flowing at least one of stack device entrance be configured to when the flowing stack device is with the masking element cooperation at least one masking element register；With the flowing control assembly being arranged in the flowing stack device, wherein the flowing control assembly is configured to limit the flowing of the fluid in the flowing stack device.
Description
Technical field
The utility model is related to nuclear reaction field more particularly to core component sodium flow systems.
Background technology
Thailand draw energy traveling wave reactor (TWR) fission equipment (its more generally can be described as nuclear fission deflagration wave reactor or
Nuclear burning wave reactor) in, key reaction pile element is to be filled with the reactor vessel of Liquid Sodium cooling agent and reactor core.
TWR fissions equipment is the through type fast reaction heap of subcritical heavily loaded operating fuel for being proliferated and burning by scene.Reactor
Core is immersed in the sodium pond in reactor vessel.It is by depleted uranium/exhaustion uranium (U-238) in the center of core in a kind of design
Stick surround some enriched uranium (U-235) stick.U-235 is used as initiator, starts traveling wave reaction under external force ---
A kind of slow mobile chain reaction of the parallel fission wave advanced through uranium bar.These parallel waves cause in the center of core, so as to slow
It slowly consumes fuel and generates heat in the core.This operational mode is visually expressed as wherein proliferation and and then is burnt sometimes
The reactor that the wave of fissile material will be advanced relative to fuel.However, the TWR of the safe drawing energy fissions, equipment further includes so-called
" standing wave " designs, and exhausts uranium bar with not exhausting uranium bar from reactor core external week wherein near the center of reactor core
It exchanges as the alternative solution that reaction is made radially outward to be propagated through static stick.
Sodium cooling agent is used to radiate from core.Containment surrounds reactor vessel to leak from reactor vessel in contingency
In the case of prevent the loss of sodium cooling agent.Pump make main sodium cooling agent reactor core and the intermediate heat exchanger in the pond it
Between recycle.These heat exchangers have the intermediate sodium cooling agent of on-radiation in the opposite side of heat exchanger.Heated centre
Sodium cooling agent, which is recycled to, generates steam to drive the steam generator of the turbine of generator.
Theoretically, TWR equipment of fissioning does not need to fuel reprocessing, using depleted uranium or natural uranium as their main fuel,
A small amount of enriched uranium is only needed at the start, and nevers need to refuelling again.This core longevity depends on the first dress of uranium
The specification of material and the fuel burn-up rate realized during reactor operation.
Utility model content
In a scheme, which is related to a kind of equipment, which includes：Core supporting structure；Shelter element, the masking
Element restriction is arranged at least one masking element opening at the first height of the masking element, wherein the masking element is set
It puts in the first side of core supporting structure；With the flowing stack device for being configured to coordinate with masking element, the wherein flowing stacks
Device includes：Limit at least one of the wall of multiple flowing stack device entrances, plurality of flowing stack device entrance structure
It causes to shelter element register at least one when the flowing stack device is with masking element cooperation；Be arranged on flowing heap
Flowing control assembly in stacking device, the wherein flowing control assembly are configured to the stream of the fluid in limitation flowing stack device
It is dynamic.In one example, which includes multiple orifice plates, and each orifice plate in plurality of orifice plate is limited from it
In at least one aperture for passing through.In another example, flowing stack device has a height, and plurality of orifice plate is configured
In the precalculated position along the height, and at least one of plurality of flowing stack device entrance flows stack device entrance
It is configured between each orifice plate in multiple orifice plates.In another example, the first flowing heap in multiple flowing stack device entrances
Closed assembly posting port has the diameter bigger than the diameter of the second flowing stack device entrance in multiple flowing stack device entrances.
In yet another example, the flowing control assembly includes at least one labyrinth type element.
In another example of said program, at least one labyrinth type element is flowed in stack device entrances extremely with multiple
A few fluid communication.In one example, the flowing control assembly includes filter.In another example, utensil is filtered
There is the density of the height change along flowing stack device.In another example, filter includes the filter cell of multiple dispersions.
In yet another example, masking element is fixed to core supporting structure.
In another example of said program, core support structure architecture into entrance guiding pin is received, sell by entrance guiding
Core component is fixed in the position substantially aligned with masking element.In one example, flowing stack device is connected to fuel
Component, and wherein flowing stack device can be removed when fuel assembly is promoted from masking element.In another example, masking member
Part includes multiple masking elements and wherein flowing stack device includes multiple flowing stack devices.In another example, first
Masking element restriction is arranged on the first masking element opening at the first height of the first masking element, and the wherein second masking
Element restriction is arranged on the second masking element opening at the second height of the second masking element, wherein the first height is more than second
Highly.In yet another example, multiple flowing stack devices are identical.
In another example of said program, outer housing limits outlet in the first end of outer housing.In one example, when
When flowing stack device with masking element cooperation, the configuration of flowing stack device is in masking element.In another example, work as flowing
When stack device is with masking element cooperation, masking element is arranged in flowing stack device.
In another program, which is related to a kind of equipment, which has：Inlet nozzle, the inlet nozzle limit entrance
Opening and the outlet being in fluid communication with entrance opening；Pipeline, the pipeline are connected to inlet nozzle close to outlet；Close to outlet setting
Filter cell, wherein into entrance opening and leaving the fluid of outlet before pipeline is entered and flowing through the filter cell.
In one example, filter cell limits multiple openings.In another example, there are the multiple opening multiple torsions to open
Mouthful.
Description of the drawings
Below form the application a part attached drawing be for described technology it is illustrative and be not intended to
Any mode limits the range for the technology for requiring patent right, which should be based on claim appended herein.
Fig. 1 is shown in block diagram form some basic building blocks of traveling wave reactor.
Fig. 2 is the schematic cross sectional views of the core of traveling wave reactor.
Fig. 3 is the exploded view of core component.
Fig. 4 is inlet nozzle and the enlarged cross-sectional view of core supporting structure docking.
Fig. 5 A and 5B are the perspective views of the component of sodium flow system.
Fig. 5 C are the perspective cut-away schematic views of the flowing stack device of sodium flow system.
Fig. 6 A and 6B are the schematic cross sectional views for the other examples for flowing stack device.
Fig. 7 is the exploded view of another example of core component.
Fig. 8 A and 8B are the side view and sectional view of the flowing stack device of another example of sodium flow system.
Fig. 8 C are the side views of the masking element of another example of sodium flow system.
Fig. 8 D are the sectional views of the sodium flow system of Fig. 8 A-8C.
Fig. 9 A and 9B are the enlarged fragmentary views of the filter element of the inlet nozzle for core component.
Specific embodiment
Fig. 1 is shown in block diagram form some basic building blocks of traveling wave reactor (TWR) fission equipment 100.In general,
TWR fission equipment 100 includes accommodating the reactor core 102 of multiple fuel assembly (not shown).Core 102 is arranged on holding one
In the pond 104 for determining the Liquid Sodium cooling agent 106 of volume.Pond 104 is referred to as hot pond and with than also accommodating Liquid Sodium cooling agent
The high sodium temperature of 106 surrounding's cold drop 108 (is attributed to the energy generated by the fuel assembly in reactor core 102).Heat
Pond 104 is separated by elbows 110 and cold drop 108.The head cover headspace 112 of the ullage of sodium cooling agent 106 is filled with
The inert protective gas of such as argon gas.Reactor vessel 114 surrounds reactor core 102, hot pond 104 and cold drop 108, and profit
It is sealed with reactor lid 116.Reactor lid 116 provides a variety of maintenance points led in the inside of reactor vessel 114.
The size of reactor core 102 is selected based on Multiple factors, the characteristic including fuel, desired generated energy, can
100 space of reactor of acquisition etc..TWR fission equipment a variety of examples can as needed or it is expected be used for low-power (about
300MWeAbout 500MWe), middle power (about 500MWeAbout 1000MWe) and high power (about 1000MWeMore than) application in.It can lead to
Crossing the unshowned one or more reflectors of the setting around core 102 and being returned to neutron reflection improves reaction in core 102
The performance of heap 100.It is moved in the core 102 and around it (or " in addition, fissile material and fissible nuclear component can be generated
Change ") to control the nuclear reaction that wherein occurs.
Sodium cooling agent 106 is recycled via main sodium cooling agent pump 118 in container 114.Main coolant pump 118 is from cold drop 108
It aspirates sodium cooling agent 106 and it is ejected into pumping chamber (plenum) below reactor core 102.Cooling agent the last 106
It makes upwardly through core and is heated due to the reaction occurred in reactor core 102.The cooling agent 106 of heating is from warm
Pond 104 enters intermediate heat exchanger (multiple) 120, and leaves intermediate heat exchanger 120 and reenter cold drop 108.It is this
Main Coolant loop 122 thus makes sodium cooling agent 106 be recycled in reactor vessel 114 completely.
Intermediate heat exchanger 120 combines to be physically separate from main sodium pond 104 and 108 (that is, intermediate sodium and main sodium are forever always
Far from mixing) one section of Liquid Sodium closed loop.Heat (is fully accommodated in by intermediate heat exchanger 120 from Main Coolant loop 122
In container 114) it is transmitted to intercoolant loop 124 (being positioned only part in container 114).Intermediate heat exchanger 120 passes through
Elbows 110, so as to bridge hot pond 104 and cold drop 108 (so that the sodium 106 in Main Coolant loop 122 is allowed to flow therebetween
It is dynamic).In one example, four intermediate heat exchangers 120 are distributed in container 114.Alternatively, two or six intermediate heat exchanges
Device 120 is distributed in container 114.
Intercoolant loop 124 makes the sodium cooling agent 126 through pipeline disengaging container 114 be followed via reactor lid 116
Ring.Intermediate sodium pump 128 outside reactor vessel 114 makes sodium cooling agent 126 be recycled to electricity generation system 123.Heat is cold from master
But the sodium cooling agent 106 of agent loop 122 is transmitted to the sodium cooling agent of the intercoolant loop 124 in intermediate heat exchanger 120
126.The sodium cooling agent 126 of intercoolant loop 124 passes through multiple pipes 130 in intermediate heat exchanger 120.These pipes 130
The sodium cooling agent 106 and the sodium cooling agent 126 of intercoolant loop 124 for keeping Main Coolant loop 122 separate, simultaneously
Transferring heat energy therebetween.
Direct heat exchanger 132 extends into hot pond 104 and usually in case of emergency into Main Coolant loop 122
Sodium cooling agent 106 provide cooling.Direct heat exchanger 132 is configured to allow for sodium cooling agent 106 to be entered and left from hot pond 104
Heat exchanger 132.Direct heat exchanger 132 has the structure similar to intermediate heat exchanger 120, wherein the pipe 134 is kept
The NaK (sodium-potassium) of the Main Coolant loop 122 and direct heat exchanger cooling agent NaK of direct reactor coolant loop 138
136 separate, while transferring heat energy therebetween.
Other assisted reaction pile elements (be located in reactor vessel 114 and outside reactor vessel 114) include
But it is not limited to be not shown but will become apparent to pump, check-valves, shut-off valve, flange, excretion to those skilled in the art
Slot etc..Across reactor lid 116 other through hole (for example, port, inertia covering gas for main refrigerant pump 118
Body and inspection port, sodium processing port and revenge gas ports etc.) it is not shown.Control system 140 is used to controlling and monitoring composition
The various components and system of reactor 100.
Broadly, the present disclosure describes the configurations for the performance for improving reactor 100 shown in FIG. 1.Specifically, for general
Example, configuration and the arrangement for the flow system that sodium is directed in core component be shown and below with reference to figure below more
It describes in detail.
Fig. 2 is the schematic cross sectional views of the core 200 of traveling wave reactor.Core 200 be schematically shown and including
Central core region 202 with multiple core components 204.Core component 204 may include fissible nuclear fuel assembly, energy
It generates the nuclear fuel assembly of fissile material, shield assembly, reflector assembly, control assembly and standby shuts down component or testing of materials
Component.In general, the content (for example, fissile material, control material etc.) of component determines specific components.However, each group
The component of this material of holding of part is identical.Periphery core area 206 includes container inner storage tank 208.In the entire longevity of core 200
Hit, fissible nuclear fuel assembly and can generate the nuclear fuel assembly (and certain other components) of fissile material in central core
It is switched between body region 202 and periphery core area 206.This performs to open in each stage in core service life on demand or as required
Move, maintain, accelerate or terminate nuclear reaction or power generation and/or for security consideration.
Core component 204 is received in the position being aligned with masking element 216 by the upper plate 210 of core supporting structure 212.Sodium
Cooling agent is pumped into pumping chamber 214 of the configuration below upper plate 210 and flows upward to core component 204, it passes through herein
The nuclear reaction heating occurred in core 200.Guiding sodium stream is described below by core 202 and enters the structure in multiple assembly.
Fig. 3 is the exploded view of core component 300.Core component 300 includes the slender pipeline 302 with axis A.Pipeline
302 have hexagonal cross-section.With internal flow passageway manipulate tube socket 304 be fixed to pipeline 302 first end 306 and
With allowing to grasp it by the mechanism in reactor vessel to be promoted, fallen and in other ways move core component 300
Enter the internal or external feature structure that core is interior, removes from core or is moved in core.Inlet nozzle 308 is fixed to pipeline
302 second end 310.Multiple bearer rings 312 and snap ring 314 are used to that tube socket 304 will to be manipulated and inlet nozzle 308 is attached to pipe
Road 302.Include multiple jam plates 316 (being two in this example) and multiple rod tracks 318 in the adjacent one end of inlet nozzle 308.
Cluster 320 is connect by jam plate 316 and rod track 318 with inlet nozzle 308 jointly.Fig. 9 A and 9B show to utilize filter element
Instead of the alternate configuration of jam plate 316 and rod track 318.Also show sealing ring 322 and current limiter 324.Nozzle 308 limit with
Multiple coolant entrance windows 326 that the internal flow chamber (not shown) extended across nozzle 308 is in fluid communication.Therefore, it is multiple
Coolant entrance window 326 provides be configured at stream around cluster 320 therein in sodium flow nozzle 308 and pipeline 302
Dynamic path.Sodium stream continuously leaves from manipulation tube socket control lead seat 304.
Fig. 4 is the sectional view docked between inlet nozzle 38 and core supporting structure 400.Inlet nozzle 308 is in core group
It is in place and be engaged with it in the holder 402 of part 400.The base portion 402 of holder 404, which limits to provide, leads to static reactor sodium pond
For the access 406 of the flow path of sodium.Holder 402 can extend above core supporting structure 400 or even can be with one
Play extension.It is to include sheltering the flowing stacking of element 502 and configuration in element 502 is sheltered below core supporting structure 400
The coolant flow autocontrol system 500 of device 504.In this example, masking element 502 is in form of sleeve.Flow stack device
504 include at least one flowing control assembly 508 of outer housing 506 and configuration wherein.Flowing control is described more particularly below
System 500 processed.
Running system described herein is using the flowing stack device of standardization and below core supporting structure
The different masking sleeves of various positions.Masking component is fixed to core supporting structure or is integral with, and flows stack device
Can be integrally or with it to separate with core component.By using the flowing stack device of standardization, due to standardized element
Reduce manufacture cost, inter-module difference and the risk of incorrect assembling.Sheltering sleeve allows each flowing stack device such as
It is used under the flox condition of the wide scope of the flox condition encountered in TWR in any position.Flowing stack device can be with core
The integration of module inlet nozzle can be fixed in masking sleeve.Flowing lamination may include multiple pressure stages and enter at different levels
Mouthful.Masking sleeve is configured around flowing lamination to form the selective entrance for leading to flow stage.The arrangement allowable pressure drop root
Change according to exposed selective entrance, this then causes stream that will encounter multiple pressure drop grades.This allows the standardization of fuel assembly,
Simultaneously unique flox condition is formed for different core positions.
For TWR, this can be advantageous, because it allows core component to install or reposition at any time
In different core positions, while still receive the flow suitably measured (it can be different due to position).In flowing stack device with entering
In the integral example of mouth nozzle, flowing stack device is connect with removable member (core component).Therefore, it can check on demand
And mitigate aging effects (such as corrosion damage).Wherein all core components are exchanged with the core component of different designs
For " core recombination (re-core) " operation, the flow region of original core need not be met by replacing component, so as to need or wish
Allow more flexibilities of the design of following core in the case of prestige.
Fig. 5 A and 5B are the perspective views of the component of sodium flow system 500.Fig. 5 C are the stream of sodium flow system 500
The perspective cut-away schematic view of dynamic stack device 504.Fig. 5 A-5C are described together.Sodium flow system 500 includes that core branch can be fixed to
The masking element or masking sleeve 502 for holding system (not shown) or being integral with.It shelters sleeve 502 and includes that there is overall height HM
General cylindrical shape housing 506.One or more opening 508 can be substantially in predetermined altitude h1Place is set around the circumference of housing 506.
In other examples, sheltering the opening 508 in sleeve can be distributed at the different height of masking sleeve 502.According to core knot
The position of specific masking sleeve openings 508 below structure, sodium stream can such as pass through the outer housing 512 by flowing stack device 504
The particular flow level of the position restriction of the matching flowing stack device entrance 510 of restriction, which enters, to be arranged in masking sleeve 502
Flowing stack device 504.As shown in Figure 5A, flowing stack device 504 further defines overall height HF, may be approximately equal to shelter
The total height of sleeve 502.The predetermined altitude h of particular flow stack device entrance 5102It can be arranged such so that specific masking
Sleeve openings 508 align.Therefore, sodium enter flowing stack device 504 level be configured by flowing stack device 504 at it
In specific masking sleeve 502 masking sleeve openings 508 position determine.
It is such as visible from Fig. 5 A and 5C, height H of multiple flowing stack device entrances 510 along flowing stack device 504F
Configuration.The diameter of these flowing stack device entrances 510 can the height H based on their edge flowing stack devices 504FPosition and
Difference enters pressure when flowing stack device 504 at it so as to influence sodium cooling agent in particular flow level.In the example of diagram
In son, the diameter of flowing stack device entrance 510 with the increase of the distance of 514 top of bottom of flowing stack device 504 and
Increase.It flows stack device 504 and includes internal flow control assembly 516, one example is shown in figure 5 c.In this example
In, flowing control assembly 516 includes multiple flowing levels, and each level that flows is at least partly by being approximately perpendicular to flowing stack device
The orifice plate 518 of 504 axis A configurations limits.Orifice plate 518 is also disposed in the height H along flowing stack device 504FPre-determined bit
Put place.Each orifice plate 518 limits the one or more apertures 520 flowed through for sodium.For each orifice plate 518, aperture
520 diameter can be different further to control relative pressure drop.In another example, each orifice plate 518 can be instead of
To be formed by constraining or hindering (if desired, in various degree) sodium to flow through its dispersing filter.These filters can
It is made of the material similar with the material of other components for flow system 500.
Flowing stack device entrance 510 is set around the housing 512 of flowing stack device 504.In the configuration of diagram, flowing
Stack device entrance 510 is arranged between adjacent orifice plate 518.In addition, multiple flowing stack device entrances 510 are configured in each hole
Between plate 518.Therefore, when flowing stack device 504 be configured when shelter in sleeve 502, flowing stack device 504 flowing
Stack device entrance 510 is aligned with relevant masking sleeve openings 508.Therefore, when the flowing stack device with identical configuration
504 be used in core supporting structure below multiple positions when, masking sleeve 502 based on masking sleeve openings 508 position and determine
Sodium is determined into flowing level therein.This is realized flows 504 configuration of stack device in entire reactor using single, simultaneously
Multiple position control on demand flowing based on the specific masking sleeve 502 used in each position in reactor.
Fig. 6 A and 6B are the schematic cross sectional views for the other examples for flowing stack device 600a, 600b respectively.Each flowing heap
Stacking device 600a, 600b include outer housing 602a, the 602b that can limit multiple flowing stack device entrance 604a, 604b.Flowing
Diameter, shape or the other aspects of stack device entrance 604a, 604b can be along the height H of flowing stack device 600a, 600bFBecome
Change, as schematically shown in figure.In addition, some or all of flowing stack device entrance 604a, 604b can be by netted
Flowing control assembly 608a, 608b is maintained at outer housing by object or sieve 606a, 606b covering to further suppress flowing
In 602a, 602b or further strengthen outer housing 602a, 602b.Flowing stack device 600a, 600b of diagram, which are limited, opens wide top
610a, 610b and closed bottom end 612a, 612b are held, but in further embodiments, flowing stack device may include open bottom
To increase through sodium flow therein.Particularly, the masking sleeve used with reference to this open bottom flowing stack device
One or more openings of sizes can be limited wherein so that the bottom via masking sleeve to be controlled to enter flowing stack device
In flow.
In fig. 6, flowing control assembly 608a is the reducing-flow structure of such as packed bed.Packed bed can be by largely disperseing
Filler particles 614a is formed, and the filler particles can be circular, oval or with some other shape.Packed bed
The flowing of sodium is prevented when sodium flows upwards through flowing stack device 600a.By using the filler particles 614a of sizes
(for example, being smaller particle near the 612a of bottom end, wherein grain size is higher and higher in flowing stack device 600a), surface line
Reason or both makes height H of the flow resistance along flowing stack device 600aFVariation.Known smaller particle is more densely packed filled out
It fills, higher flow resistance is generated than the volume comprising larger particles so as to generate.It can be via by the flow resistance of packed bed
Known method is controlled and is optimized.It in addition, can be by the way that desired flowing stack device entrance 604a and masking sleeve (not be shown
Go out) in the register suitably positioned control into the sodium flowing in flowing stack device 600a.
In fig. 6b, flowing control assembly 608b is the reducing-flow structure of such as labyrinth type element.Labyrinth type element can be by can
Relative to housing 602b is parallel, multiple dispersion fins or plate 614b orthogonal or be on the skew orientated are formed.Labyrinth type element and stream
Dynamic stack device entrance 604b is in fluid communication and sodium is prevented to flow when sodium flows upwards through flowing stack device 600b.It is logical
It crosses use and is spaced apart that (for example, the spacing near the 612b of bottom end is smaller, wherein the spacing is in flowing stack device with various distances
It is increasing in 600b) discrete fin or plate 614b, height H of the flow resistance along flowing stack device 600b can be madeFBecome
Change.Smaller spacing between well known elements generates the high flow resistance of bigger spacing.It can be through by the flow resistance of packed bed
It is controlled and is optimized by known method.It in addition, can be by the way that desired flowing stack device entrance 604b and masking sleeve (not be shown
Go out) in the register suitably positioned control into the sodium flowing in flowing stack device 600b.In another example, it flows
Dynamic control assembly 608b can be the metallic fiber or filter or other materials being filled into flowing stack device 600b.In example
In son, the density (and flow resistance hereafter) of metallic fiber or filter can be along the height H of flowing stack device 600bFBecome
Change.
Fig. 7 is the exploded view of another example of core component 700.Core component 700 includes the slender pipeline with axis A
702.Pipeline 702 has hexagonal cross-section.The first end for manipulating tube socket 704 and being fixed to pipeline 702 with internal flow passageway
706 and with allowing to grasp it by the mechanism in reactor vessel to be promoted, fallen and in other ways by core component
The 700 internal or external feature structures for being moved in core, being removed from core or being moved in core.Inlet nozzle 708 is fixed
To the second end 710 of pipeline 702.Multiple bearer rings 712 and snap ring 714 spray for that will manipulate tube socket 704 and flowing stack device
Mouth 728 is attached to pipeline 702.It (is two in this example to include multiple jam plates 716 in the adjacent one end of flowing stack device nozzle 728
It is a) and multiple rod tracks 718.Jam plate 716 and rod track 718 are jointly by cluster 720 and flowing stack device nozzle 728
Connection.Also show sealing ring 722 and current limiter 724.
The core component 700 of diagram includes replacing inlet nozzle the difference lies in it with core component shown in Fig. 3
308 flowing stack device nozzle 728.Therefore, flowing stack device 730 is attached to core by flowing stack device nozzle 728
In component 700.It flows stack device nozzle 728 and limits what is be in fluid communication with the flowing control assembly (not shown) of configuration wherein
Multiple flowing stack device entrances 732.Flowing control assembly can be one of configuration described herein.Therefore, flowing stacks
Device portal 732, which provides, to be flowed into for sodium in flowing stack device nozzle 728 and pipeline 702 be configured at cluster therein
The path of 720 surroundings flowing.Sodium stream then proceedes to leave from manipulation tube socket 704.It is different with the example shown in Fig. 3-5C, flowing
Stack device nozzle 728 can be moved together when core component 700 moves in core with core component 700.In this configuration
In, based on the core component 700 caused by the masking sleeve (not shown) that flowing stack device nozzle 728 is inserted
Position in core controls the flow by flowing stack device nozzle 728 and core component 700.
Fig. 8 A and Fig. 8 B are the side view and sectional view for flowing stack device 804, and Fig. 8 C are sodium flow systems 800
Another example masking element 802 side view.Fig. 8 D are the sectional views of the sodium flow system 800 of Fig. 8 A-8C.One
And Fig. 8 A-8D are described.Replacement as the flow system to Fig. 5 A-5C, it is illustrated that flow system 800 be configured to make
Element 802 must be sheltered to be assemblied in flowing stack device 804.Therefore, masking element 802 is used as assignment of traffic control mechanism.Sodium
Flow system 800 includes that core supporting system (not shown) or the masking element 802 being integral with can be fixed to.Masking
Element 802 includes having overall height HMGeneral cylindrical shape housing 806.One or more opening 808 can be substantially in predetermined altitude h1
Place's configuration is in the peripheral of housing 806.In other examples, masking member can be distributed in by sheltering the opening 808 in element 802
At the different height of part 802.Sodium flows through bottom inlet 807 and enters masking element 802.According to the specific masking below core
The position of element opening 808, sodium stream is upwardly through masking element 802 and is such as passing through the inner wall 812 by flowing stack device 804
The particular flow level of the position restriction of the matching flowing stack device entrance 810 of restriction enters configuration and is sheltering element 802 weeks
The flowing stack device 804 enclosed.In this example, the outer housing 813 of flowing stack device 804 does not include opening.Such as Fig. 8 A and 8B
Shown, flowing stack device 804 further defines overall height HF, it is typically larger than and is received in the space 815 limited by inner wall 812
Shelter the total height of element 802.The predetermined altitude h of particular flow stack device entrance 8102Can be it is such, i.e., it is specific to cover
Element opening 808 is covered to align.Therefore, sodium enter flowing stack device 804 level be configured by flowing stack device 804
The position of the masking sleeve openings 808 of surrounding specific masking element 804 determines.
It is such as visible from Fig. 8 B, height H of multiple flowing stack device entrances 810 along flowing stack device 804FConfiguration.
The diameter of these flowing stack device entrances 810 can the height H based on their edge flowing stack devices 804FAnd it is different, so as to shadow
Sodium cooling agent is rung when it enters pressure when flowing stack device 804 in particular flow level.In the example in the figures, heap is flowed
The diameter of closed assembly posting port 810 increases with the increase of the distance of 814 top of bottom of flowing stack device 804.Flow heap
Stacking device 804 includes internal flow control assembly 816, one example is shown in Fig. 8 B and 8D.In this example, flowing control
Component 816 processed includes multiple flowing levels, each axis for flowing level at least partly by being approximately perpendicular to flowing stack device 804
The orifice plate 818 of A configurations limits.Orifice plate 818 is also disposed in the height H along flowing stack device 804FPre-position.Each
Orifice plate 818 all limits the one or more aperture (not shown) flowed through for sodium.For each orifice plate 818, aperture it is straight
Diameter can be different further to control relative pressure drop.In another example, each orifice plate 818 can instead by constraint or
Hinder (if desired, in various degree) sodium flow through its dispersing filter and formed.These filters can by with for flowing
The material that the material of other components of autocontrol system 800 is similar is made.
Flowing stack device entrance 810 is configured along the inner wall 812 of flowing stack device 804.In the configuration of diagram, flowing
Stack device entrance 810 is configured between adjacent orifice plate 818.In addition, multiple flowing stack device entrances 810 are configured in each orifice plate
Between 818.Therefore, when flowing stack device 804 is configured as in fig. 8d around masking element 802, stack device is flowed
804 flowing stack device entrance 810 is aligned (in Fig. 8 D, for the sake of clarity, not with relevant masking element opening 808
The flowing stack device entrance 810 being misaligned with masking element opening 808 is shown).Therefore, when the flowing heap with identical configuration
When stacking device 804 is used in multiple positions below core supporting structure, position of the masking element 802 based on masking element opening 808
It puts and determines sodium and enter flowing level therein.This is realized in entire reactor using single flowing 804 structure of stack device
Type, while multiple position control on demand flowing based on the specific masking sleeve 802 used in multiple positions and in reactor.
Fig. 9 A and 9B are the enlarged fragmentary views of the filter element 900 of the inlet nozzle 902 for core component.With
On show the multiple locks for connecting the cluster in core component with inlet nozzle in the core component that is shown in Fig. 3,4 and 7
Plate and rod track.Although this configuration presents certain advantages, Fig. 9 A and 9B show the filtering of alternative jam plate and rod
Element 900.Filter element 900 can be used for capturing the fragment that may flow through inlet nozzle 902, to prevent damage fuel cluster
Each stick.These clasts may include that inlet nozzle can be passed through and may have enough quality to be damaged by fretting wear
The small steel wire class clast of fuel rod.Filter element 900 is formed by the solid slab with the multiple torsions passed through opening 904.
Each opening 904 limits substantially semi-circular profile.The twisted configuration of opening 904 is eliminated under each filter element 900
Portion's expanded range 906 arrives the sight of upper part expanded range 908 through each opening 904.This configuration can not cause the aobvious of pressure drop
Write it is increased in the case of capture clast, and pressure drop significantly increases the cooling that can endanger fuel rod.It can be by using additional manufacture
Therefore technology (for example, 3D print) manufactures the complex shape of each opening 904 of filter element 900, into inlet nozzle 902
The sodium stream of (for example, via entrance opening) passes through filtering element 900 from the outlet of inlet nozzle outflow cocurrent.Hereafter, sodium stream enters
In pipeline and around each stick of cluster therein.
It should be understood that the present disclosure is not limited to specific structure disclosed herein, processing step or material, but extend to related field
Skilled artisan will realize that their equivalent.It should also be understood that term used herein has merely for the sake of description
The purpose of body example, and be not intended to be limited.It must be noted that as used in the present specification, singulative
" one ", "one" and " described " include the reference of plural number, unless separately expressly stating otherwise within a context.
It is evident that system and method described herein be well suited for realizing the objects and advantages mentioned and
Wherein intrinsic objects and advantages.Those skilled in the art will recognize that the method and system in this specification can be used perhaps
Multimode is implemented and therefore should not be limited by the embodiment and example of foregoing illustrative.In this respect, different examples described herein
Any number of feature of son is combined into an example and with more than whole feature described herein or few feature
Alternate examples are possible.
Although describing various examples for the purpose of this disclosure, various changes and modifications can be made, well
In the range contemplated by the disclosure.Those skilled in the art, which can be made, will arbitrarily expect and covered in the disclosure
Spirit in many other changes.
Claims (21)
1. a kind of core component sodium flow system, which is characterized in that including：
Core supporting structure；
Element is sheltered, the masking element restriction is arranged at least one masking element at the first height of the masking element
Opening, wherein the masking element is arranged on the first side of the core supporting structure；With
The flowing stack device with the masking element cooperation is configured to, wherein the flowing stack device includes：
The wall of multiple flowing stack device entrances is limited, wherein at least one of the multiple flowing stack device entrance construction
Into it is described flowing stack device with it is described masking element cooperation when with it is described it is at least one masking element register；With
The flowing control assembly being arranged in the flowing stack device, wherein the flowing control assembly is configured to described in limitation
Flow the flowing of the fluid in stack device.
2. core component sodium flow system according to claim 1, which is characterized in that the flowing control assembly packet
Multiple orifice plates are included, wherein each orifice plate in the multiple orifice plate limits at least one aperture passed therethrough.
3. core component sodium flow system according to claim 2, which is characterized in that the flowing stack device tool
There is a height, and wherein the multiple orifice plate is configured in the pre-position along the height, and wherein the multiple stream
At least one of dynamic stack device entrance is arranged between each orifice plate in the multiple orifice plate.
4. core component sodium flow system according to claim 1, which is characterized in that the multiple flowing heap closed assembly
The first flowing stack device entrance in posting port has to be stacked than the second flowing in the multiple flowing stack device entrance
The big diameter of the diameter of device portal.
5. core component sodium flow system according to claim 1, which is characterized in that the flowing control assembly packet
Include at least one labyrinth type element, the fluid stack device includes outer housing, and at least one labyrinth type element by
Can be parallel, orthogonal relative to outer housing or the multiple dispersion fins or plate that are on the skew orientated formed.
6. core component sodium flow system according to claim 5, which is characterized in that at least one labyrinth type
At least one of element and the multiple flowing stack device entrance fluid communication.
7. core component sodium flow system according to claim 1, which is characterized in that the flowing control assembly packet
Include filter.
8. core component sodium flow system according to claim 7, which is characterized in that the filter has along institute
State the density of the height change of flowing stack device.
9. core component sodium flow system according to claim 7, which is characterized in that the filter includes multiple
The filter cell of dispersion.
10. core component sodium flow system according to claim 1, which is characterized in that the masking element is fixed
To the core supporting structure.
11. core component sodium flow system according to claim 1, which is characterized in that the core supporting structure
It is configured to receive entrance guiding pin, the entrance guiding pin is fixed to core group in the position substantially aligned with the masking element
Part.
12. core component sodium flow system according to claim 1, which is characterized in that the flowing stack device
Fuel assembly is connected to, and wherein described flowing stack device can be moved when the fuel assembly is promoted from the masking element
It removes.
13. core component sodium flow system according to claim 1, which is characterized in that the masking element includes
It is multiple masking elements and wherein it is described flowing stack device include multiple flowing stack devices.
14. core component sodium flow system according to claim 13, which is characterized in that the first masking element limits
The first masking element opening being arranged at the first height of the first masking element, and the wherein second masking element limits
The second masking element opening being arranged at the second height of the second masking element, wherein first height is more than described
Second height.
15. core component sodium flow system according to claim 14, which is characterized in that the multiple flowing stacks
Device is identical.
16. core component sodium flow system according to claim 1, which is characterized in that outer housing is in the shell
The first end of body limits outlet.
17. core component sodium flow system according to claim 1, which is characterized in that when the flowing heap closed assembly
When putting with the masking element cooperation, the flowing stack device is arranged in the masking element.
18. core component sodium flow system according to claim 1, which is characterized in that when the flowing heap closed assembly
When putting with the masking element cooperation, the masking element is arranged in the flowing stack device.
19. a kind of core component sodium flow system, which is characterized in that including：
Inlet nozzle, the inlet nozzle limit entrance opening and the outlet being in fluid communication with the entrance opening；
Pipeline, the pipeline are connected to the inlet nozzle close to the outlet；
Close to the filter cell of the outlet setting, wherein enter the entrance opening and leave the fluid of the outlet into
The filter cell is flowed through before entering the pipeline.
20. core component sodium flow system according to claim 19, which is characterized in that the filter cell limit
Fixed multiple openings.
21. core component sodium flow system according to claim 20, which is characterized in that the multiple opening includes
Multiple torsion openings.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201762516994P | 2017-06-08 | 2017-06-08 | |
| US62/516994 | 2017-06-08 |
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| Publication Number | Publication Date |
|---|---|
| CN207489486U true CN207489486U (en) | 2018-06-12 |
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ID=62484503
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720781526.7U Active CN207489486U (en) | 2017-06-08 | 2017-06-30 | Core component sodium flow system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110070953A (en) * | 2019-04-24 | 2019-07-30 | 中国原子能科学研究院 | Flow distribution device and preparation method thereof for fast reactor intermediate heat exchanger |
| US11881320B2 (en) * | 2019-12-23 | 2024-01-23 | Terrapower, Llc | Molten fuel reactors and orifice ring plates for molten fuel reactors |
| WO2024077261A1 (en) * | 2022-10-07 | 2024-04-11 | Terrapower, Llc | Core assembly sodium flow control system |
-
2017
- 2017-06-30 CN CN201720781526.7U patent/CN207489486U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110070953A (en) * | 2019-04-24 | 2019-07-30 | 中国原子能科学研究院 | Flow distribution device and preparation method thereof for fast reactor intermediate heat exchanger |
| CN110070953B (en) * | 2019-04-24 | 2023-09-29 | 中国原子能科学研究院 | Flow distribution device for fast reactor intermediate heat exchanger and manufacturing method thereof |
| US11881320B2 (en) * | 2019-12-23 | 2024-01-23 | Terrapower, Llc | Molten fuel reactors and orifice ring plates for molten fuel reactors |
| WO2024077261A1 (en) * | 2022-10-07 | 2024-04-11 | Terrapower, Llc | Core assembly sodium flow control system |
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