CN208873484U - A kind of in-pile component structure suitable for presurized water reactor - Google Patents
A kind of in-pile component structure suitable for presurized water reactor Download PDFInfo
- Publication number
- CN208873484U CN208873484U CN201821154975.XU CN201821154975U CN208873484U CN 208873484 U CN208873484 U CN 208873484U CN 201821154975 U CN201821154975 U CN 201821154975U CN 208873484 U CN208873484 U CN 208873484U
- Authority
- CN
- China
- Prior art keywords
- component
- reactor
- hanging basket
- pile
- presurized water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
Landscapes
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
It include upper-part in-reactor component, lower part in-pile component, inner sleeve support component, control rod guide tubes and bundles component, instrument guidance set in heap for it in the presurized water reactor of compact bilayer sleeve the utility model discloses a kind of in-pile component structure suitable for presurized water reactor；Wherein, upper-part in-reactor component includes upper backup pad component, guided bearing column and reactor core upper plate；Lower part in-pile component includes for installing and positioning the hanging basket component of reactor fuel component, metallic reflection layer assembly, reactor core lower plate and flow distribution device；Inner sleeve support component is set on the outside of hanging basket component, is provided with the outlet for coolant outflow.Implement the utility model, have many advantages, such as structure simply, be easy to lift, using effect it is good.
Description
Technical field
The utility model relates to technical field of nuclear power, more particularly to a kind of in-pile component structure suitable for presurized water reactor.
Background technique
Outside the reactor core of presurized water reactor, it is often necessary to in-pile component structure, especially compact Layout type presurized water reactor are set, it is expected that
In-pile component structure can be easy for removal and installation, and has better security performance；But it is existing applied to compact cloth
There are more or less shortcomings for the in-pile component structure for setting in type presurized water reactor, for example, in the presence of it is such as easy for removal and installation,
Upper chamber is easy to produce transverse flow, is unfavorable for scram, or structure is complicated etc..
Therefore how to obtain one kind and be more preferably suitable for compact Layout type presurized water reactor in-pile component structure as a urgency wait solve
Problem certainly.
Utility model content
Technical problem to be solved by the utility model is to provide a kind of in-pile component structure suitable for presurized water reactor,
Have many advantages, such as that structure is simple, be easy to lift, using effect it is good.
In order to solve the above technical problems, the utility model embodiment provides a kind of in-pile component knot suitable for presurized water reactor
Structure, in the presurized water reactor for compact bilayer sleeve, including upper-part in-reactor component, lower part in-pile component, inner sleeve support component,
Instrument guidance set in control rod guide tubes and bundles component, heap；Wherein,
Upper-part in-reactor component includes upper backup pad component, guided bearing column and reactor core upper plate, the guided bearing column setting
Between the upper backup pad component and reactor core upper plate；In the heap instrument guidance set be fixed on the upper backup pad component it
On, the control rod guide tubes and bundles component is threaded through between the upper backup pad component and the reactor core upper plate；
Lower part in-pile component include for install and position the hanging basket component of reactor fuel component, metallic reflection layer assembly,
Reactor core lower plate and flow distribution device, in which:
Hanging basket component, including upper and lower two chambers, the reactor core upper plate is between described two chambers；Its upper chamber section
It is evenly arranged with circular openings；
Metallic reflector component is set in inside the lower chambers of the hanging basket component, and the metallic reflection layer assembly is in court
Reflecting surface is formed to the inside of reactor core；
The inlet flow rate distributor setting has the discharge orifice flowed into for coolant in reactor core inlet；
Inner sleeve support component is set on the outside of hanging basket component, is provided with the outlet for coolant outflow.
Wherein, upper backup pad component is a upper support cylinder, is set in hanging basket component upper end port；The top branch
It holds a upper end and extends outward upper support drum flange, hanging basket component upper end is outward extended with hanging basket flange；On described
Portion's bearing drum flange is located on the hanging basket flange；
Holddown spring is provided between the upper support drum flange and the hanging basket flange.
Wherein, it is attached between the inner sleeve support component and inner sleeve using detachable connection method.
Wherein, interior collar supports component lower part is provided with supported flange, with the supported flange in the middle part of hanging basket component it
Between be provided with compression seal assembly.
Wherein, instrument guidance set includes the support grid being fixed on the upper backup pad component and leads in the heap
Xiang Guan.
Wherein, hanging basket component lower end is provided with radial support key, matches with the radial support key of pressure vessel.
Wherein, using the side of mechanical connection between the metallic reflection layer assembly and the cylinder and reactor core lower plate of hanging basket component
Formula is attached fixation.
Implement the utility model, have it is following the utility model has the advantages that
The utility model provides one kind and is suitable for compact Layout type presurized water reactor in-pile component structure, is applicable to bilayer
Cannula structure can provide free-standing structure by inner sleeve support tube for inner sleeve, easy for removal and installation；
Hanging basket upper chamber ring cloth is provided with circular openings, the generation of upper chamber's transverse flow can be effectively reduced, conducive to falling
Stick；
The lower chambers of hanging basket component are provided with metallic reflection layer assembly, there is good neutron reflection ability, in raising
Sub- utilization rate, ease off the pressure container irradiation damage, while can effectively reduce in-pile component Flow vibration；
Due to reactor core loss of-coolant accident (LOCA) can be effectively reduced, improve using the structure such as holddown spring and compression seal assembly
Safety；
It is substituted and is welded to connect using mechanical connection manner, the stress corrosion and welding welded to stainless steel material is effectively reduced
Deflection, in addition relative to traditional in-pile component structure, structure is simple, and components are few.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, before not making the creative labor property
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is that a kind of longitudinal direction of in-pile component structure one embodiment suitable for presurized water reactor provided by the utility model is cutd open
View.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
Every other embodiment obtained, fall within the protection scope of the utility model.
As shown in Figure 1, being provided by the utility model a kind of suitable for presurized water reactor in-pile component structure one embodiment
Longitudinal sectional view.In the present embodiment, it is used in the presurized water reactor of compact bilayer sleeve, the in-pile component structure, including
Upper-part in-reactor component, lower part in-pile component, inner sleeve support component 5, control rod guide tubes and bundles component 7, instrument guidance set in heap
1；Wherein,
Upper-part in-reactor component further comprises upper backup pad component 2, guided bearing column 6 and reactor core upper plate 8, the guiding branch
Bearing column 6 is set between the upper backup pad component 2 and reactor core upper plate 8；Instrument guidance set 1 is fixed on described in the heap
On support plate component 2, the control rod guide tubes and bundles component 7 be threaded through the upper backup pad component 2 and the reactor core upper plate 8 it
Between；It is understood that upper-part in-reactor component is mainly used for transmitting pressing force compression reactor core, while also also serving as control rod
The support location base of instrument guidance set 1 in guide assembly 7 and heap；
Lower part in-pile component includes hanging basket component 4, metallic reflection layer assembly 9, reactor core lower plate 10 and flow distribution device
11, in which:
Hanging basket component 4, including upper and lower two chambers, the reactor core upper plate 8 is between described two chambers；Its upper chamber
Section is evenly arranged with circular openings 40；It is understood that hanging basket component 4 is for installing and positioning reactor fuel component, and energy
Relative positional relationship between guarantee fuel assembly, has optimal reactor core hot-working hydraulic characteristic；4 upper chamber of hanging basket component section is using equal
Cloth circular openings facilitate the generation for reducing the region transverse flow, are conducive to Dropping of control rod.
Metallic reflection layer assembly 9 is set in inside the lower chambers of the hanging basket component 4, and the metallic reflection layer assembly 9 exists
Reflecting surface 90 is being formed towards the inside of reactor core；In the utility model embodiment, metallic reflection layer assembly 9 replaces traditional heat
Shielding and baffle assembly or shroud component, can either improve reactor core neutron utilization rate, slow down pressure vessel irradiation damage；It can also
Effectively inhibit the generation of hanging basket component Flow vibration.
The setting of inlet flow rate distributor 11 has the discharge orifice 110 flowed into for coolant, institute in reactor core inlet
Discharge orifice 110 is stated by setting, can effectively inhibit the generation of whirlpool in lower head region, improves point of reactor core inlet flow rate
Match, guarantees that every group fuel assembly can be evenly distributed to flow.
Inner sleeve support component 5 is set in 4 outside of hanging basket component, is provided with the outlet 50 for coolant outflow.
Wherein, upper backup pad component 2 is a upper support cylinder, is set in 4 upper end port of hanging basket component；The top
Bearing cylinder upper end extends outward upper support drum flange, and 4 upper end of hanging basket component is outward extended with hanging basket flange；It is described
Upper support drum flange is located on the hanging basket flange；It is arranged between the upper support drum flange and the hanging basket flange
There is holddown spring 3.
Further, it uses between the inner sleeve support component 5 and the inner sleeve of Technologies of PWR Vessels and detachably connects
The mode of connecing is attached.Independent inner sleeve support component 5 is added on the outside of hanging basket component 4, meets making for double-layer sleeve structure
With requiring.Detachable connection method, when interior bobbin seal component needs repairing, energy are used between inner sleeve and support component
Enough take out inner sleeve tube assembly.Independent inner sleeve support component 5, which is arranged, can also make disassembly and the lower part in-pile component of inner sleeve tube assembly
Lifting it is mutually indepedent, save lower part in-pile component maintenance lifting when, inner sleeve must dismount.Inner sleeve support component 5 with hang
Between basket assembly 4 constitute reactor export converging channel, core exit coolant converge in ring cavity after by support component go out
Mouth enters inner sleeve, flows out reactor.
Further, interior 5 lower part of collar supports component is provided with supported flange 51, the pressure with 4 middle part of hanging basket component
Compression seal assembly is provided between tight flange 42.Using this structure, that is, guarantee sealing between the two, reduces by-pass flow, and energy
Compensate the circumferential decrement of inner sleeve support component 5.
Wherein, instrument guidance set 1 includes the support grid 12 being fixed on the upper backup pad component 2 in the heap
With guide pipe 13.In the utility model embodiment, instrument in the set of packets of heap top using by the way of drawing in heap, in the heap
Instrument guidance set 1 can be used for being oriented to, positioned and being supported for the insertion and extraction of instrument cluster.
4 lower end of hanging basket component is provided with radial support key 41, for matching with the radial support key of pressure vessel
It closes.
Meanwhile using mechanical connection between the metallic reflection layer assembly 9 and the cylinder and reactor core lower plate 10 of hanging basket component 4
Mode be attached fixation.It, can be to avoid welding to material (such as stainless steel of the component by using mechanical connection manner
Material) caused by stress corrosion and reduce component welding deformation.
Implement the utility model, have it is following the utility model has the advantages that
The utility model provides one kind and is suitable for compact Layout type presurized water reactor in-pile component structure, is applicable to bilayer
Cannula structure can provide free-standing structure by inner sleeve support tube for inner sleeve, easy for removal and installation；
Hanging basket upper chamber ring cloth is provided with circular openings, the generation of upper chamber's transverse flow can be effectively reduced, conducive to falling
Stick；
The lower chambers of hanging basket component are provided with metallic reflection layer assembly, there is good neutron reflection ability, in raising
Sub- utilization rate, ease off the pressure container irradiation damage, while can effectively reduce in-pile component Flow vibration；
Due to reactor core loss of-coolant accident (LOCA) can be effectively reduced, improve using the structure such as holddown spring and compression seal assembly
Safety；
It is substituted and is welded to connect using mechanical connection manner, the stress corrosion and welding welded to stainless steel material is effectively reduced
Deflection, in addition relative to traditional in-pile component structure, structure is simple, and components are few.
Above disclosed is only a kind of preferred embodiment of the utility model, certainly cannot be practical to limit with this
Novel interest field, therefore equivalent variations made according to the claim of the utility model still belong to what the utility model was covered
Range.
Claims (7)
1. a kind of in-pile component structure suitable for presurized water reactor, in the presurized water reactor for compact bilayer sleeve, which is characterized in that
Including instrument in upper-part in-reactor component, lower part in-pile component, inner sleeve support component (5), control rod guide tubes and bundles component (7), heap
Guidance set (1)；Wherein,
Upper-part in-reactor component includes upper backup pad component (2), guided bearing column (6) and reactor core upper plate (8), the guided bearing column
(6) it is set between the upper backup pad component (2) and reactor core upper plate (8)；Instrument guidance set (1) is fixed on institute in the heap
State on upper backup pad component (2), the control rod guide tubes and bundles component (7) be threaded through the upper backup pad component (2) with it is described
Between reactor core upper plate (8)；
Lower part in-pile component includes hanging basket component (4), the metallic reflection layer assembly for installing and positioning reactor fuel component
(9), reactor core lower plate (10) and flow distribution device (11), in which:
Hanging basket component (4), including upper and lower two chambers, the reactor core upper plate (8) is between described two chambers；Its upper chamber
Section is evenly arranged with circular openings (40)；
Metallic reflection layer assembly (9) is set in inside the lower chambers of the hanging basket component (4), the metallic reflection layer assembly (9)
Reflecting surface (90) are being formed towards the inside of reactor core；
Inlet flow rate distributor (11) setting has the discharge orifice (110) flowed into for coolant in reactor core inlet；
Inner sleeve support component (5) is set on the outside of hanging basket component (4), is provided with the outlet (50) for coolant outflow.
2. being suitable for the in-pile component structure of presurized water reactor as described in claim 1, which is characterized in that upper backup pad component (2)
For a upper support cylinder, it is set in hanging basket component (4) upper end port；Upper support cylinder upper end extends outward top
Drum flange is supported, hanging basket component (4) upper end is outward extended with hanging basket flange；The upper support drum flange is located at described
On hanging basket flange；
Holddown spring (3) are provided between the upper support drum flange and the hanging basket flange.
3. being suitable for the in-pile component structure of presurized water reactor as claimed in claim 2, which is characterized in that the inner sleeve support group
It is attached between part (5) and inner sleeve using detachable connection method.
4. being suitable for the in-pile component structure of presurized water reactor as claimed in claim 3, which is characterized in that in interior collar supports component
(5) lower part is provided with supported flange (51), and compression sealing is provided between the supported flange (42) in the middle part of hanging basket component (4)
Component.
5. being suitable for the in-pile component structure of presurized water reactor as claimed in claim 4, which is characterized in that instrument is oriented in the heap
Component (1) includes the support grid (12) and guide pipe (13) being fixed on the upper backup pad component (2).
6. being suitable for the in-pile component structure of presurized water reactor as claimed in claim 5, which is characterized in that the hanging basket component (4)
Lower end is provided with radial support key (41), cooperates with the radial support key of pressure vessel.
7. being suitable for the in-pile component structure of presurized water reactor as claimed in claim 6, which is characterized in that the metallic reflector group
Fixation is attached by the way of mechanical connection between part (9) and the cylinder and reactor core lower plate (10) of hanging basket component (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821154975.XU CN208873484U (en) | 2018-07-20 | 2018-07-20 | A kind of in-pile component structure suitable for presurized water reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821154975.XU CN208873484U (en) | 2018-07-20 | 2018-07-20 | A kind of in-pile component structure suitable for presurized water reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208873484U true CN208873484U (en) | 2019-05-17 |
Family
ID=66463196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821154975.XU Active CN208873484U (en) | 2018-07-20 | 2018-07-20 | A kind of in-pile component structure suitable for presurized water reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208873484U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108899098A (en) * | 2018-07-20 | 2018-11-27 | 中广核研究院有限公司 | A kind of in-pile component structure suitable for presurized water reactor |
-
2018
- 2018-07-20 CN CN201821154975.XU patent/CN208873484U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108899098A (en) * | 2018-07-20 | 2018-11-27 | 中广核研究院有限公司 | A kind of in-pile component structure suitable for presurized water reactor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108899098A (en) | A kind of in-pile component structure suitable for presurized water reactor | |
| CN102257575B (en) | Upper internal arrangement for a pressurized water reactor | |
| TWI549138B (en) | Nuclear reactor ,pressurized water nuclear reactor and method for constructing a once-through steam generator used in the unclear reactor | |
| CN103474104A (en) | Split-type integral pressurized water reactor with down-suspended basket | |
| KR20100016314A (en) | Nuclear reactor downcomer flow deflector | |
| CN101223607A (en) | Advanced gray rod control assembly | |
| CA2926713C (en) | Integral reactor pressure vessel tube sheet | |
| CN208873484U (en) | A kind of in-pile component structure suitable for presurized water reactor | |
| CN106373620A (en) | Pressurized-water nuclear reactor structure | |
| JP5606361B2 (en) | Guide device for neutron flux detector | |
| CN103871503B (en) | A kind of nuclear reactor lower chambers tabular flow distribution device | |
| CN103106931B (en) | A kind of in-pile component being applicable to Supercritical-Pressure Light Water Cooled Reactor two-flow core | |
| CN103106932B (en) | Collecting type double-flow Supercritical-Pressure Light Water Cooled Reactor | |
| KR20140057275A (en) | Pressurized water reactor with reactor coolant pumps operating in the downcomer annulus | |
| JP6577014B2 (en) | Method of pulling out the in-core instrument from the core of a pressurized water reactor | |
| CN204044016U (en) | Material test apparatus under a kind of nuclear power station steam leakage simulated condition | |
| CN102208218B (en) | Primary helium fan intake header for high-temperature gas-cooled reactor | |
| US4072560A (en) | Pressurized-water reactor pressure vessel emergency core coolant connection arrangement | |
| CN209607419U (en) | A kind of pool low temperature heating reactor control rod guide tubes and bundles structure | |
| CN1020822C (en) | Super-internal apparatus of reactor having composition guiding device | |
| CA1091827A (en) | Pressurized water reactor flow arrangement | |
| CN208873480U (en) | A kind of novel core barrel structure | |
| CN203055473U (en) | Reactor internal component applicable to supercritical water-cooled reactor two-pass reactor core | |
| JPH0675073A (en) | Boiling water reactor | |
| CN209388721U (en) | A kind of decaying cylinder for Deep Pool Low Temperature Heating Reactor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |