CN109065194A - A kind of novel reactor core inlet flow rate distributor - Google Patents
A kind of novel reactor core inlet flow rate distributor Download PDFInfo
- Publication number
- CN109065194A CN109065194A CN201810803831.0A CN201810803831A CN109065194A CN 109065194 A CN109065194 A CN 109065194A CN 201810803831 A CN201810803831 A CN 201810803831A CN 109065194 A CN109065194 A CN 109065194A
- Authority
- CN
- China
- Prior art keywords
- reactor core
- flow rate
- inlet flow
- discharge orifice
- core inlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 238000009434 installation Methods 0.000 abstract description 5
- 239000002826 coolant Substances 0.000 description 3
- 241000233855 Orchidaceae Species 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
Classifications
-
- 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"
-
- 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
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
The invention discloses a kind of novel reactor core inlet flow rate distributors, it is set under the reactor core lower plate of presurized water reactor, comprising: device noumenon, described device ontology is lower end closed, the semi-closed structure of upper end opening, described device ontology has the outer wall of uniform thickness, and multiple discharge orifices (100) are offered on the outer wall；Extend flange components (11) at the edge of the upper end opening of described device ontology.Implement the present invention, have that installation is simple, assignment of traffic is more balanced, and the advantages of vortex generates can be reduced.
Description
Technical field
The present invention relates to technical field of nuclear power, more particularly to a kind of novel reactor core inlet flow rate distributor.
Background technique
In existing presurized water reactor, need to distribute the coolant into heap chamber by reactor core inlet flow rate distributor,
It is usually used and opens the form in multiple holes or slot on flow distribution device to realize assignment of traffic.
But existing flow distribution device generally can be in the presence of such as distribution be uneven, is easy to produce vortex, and installs
In place of the deficiencies of complicated.
Therefore how to obtain one kind more preferably reactor core inlet flow rate distributor becomes a problem to be solved.
Summary of the invention
Technical problem to be solved by the present invention lies in provide a kind of novel reactor core inlet flow rate distributor, have
Installation is simple, assignment of traffic is more balanced, and can reduce the advantages of vortex generates.
In order to solve the above technical problems, the embodiment of the present invention provides a kind of novel reactor core inlet flow rate distributor, setting
Under the reactor core lower plate of presurized water reactor comprising:
Device noumenon, described device ontology are lower end closed, and the semi-closed structure of upper end opening, described device ontology is with uniform thickness
Outer wall, multiple discharge orifices are offered on the outer wall；
Extend flange components at the edge of the upper end opening of described device ontology.
Wherein, described device ontology is the half ellipsoidal surface structure of equal wall thickness；
In the flange components that the edge of the half ellipsoidal surface structure extends to form；
Wherein, each circle round discharge orifice discharge orifice Zhong Ge is equidistantly arranged.
Wherein, using the center of the half ellipsoidal surface structure floor as origin, it is provided with multi-turn circle discharge orifice, is located at periphery
The discharge orifice aperture of at least one circle is less than the aperture of its cocycle discharge orifice.
Wherein, according to a distance from central point by closely to remote sequence, the distance between described each circle discharge orifice gradually becomes
Greatly.
Wherein, described device ontology is the cylinder-like structure of equal wall thickness；
Extend flange components in the upper end-face edge of the cylinder-like structure；
Wherein, multi-turn circle discharge orifice is disposed on the periphery of the cylinder-like structure, it is each to enclose in the round discharge orifice
It equidistantly arranges each discharge orifice.
Wherein, the discharge orifice has inside conical by its shape along the both ends of center line, in entrance and intermediate intersection
Crossover position is provided with rounded corner.
Wherein, angle folded by the conical surface and center line of the dimension shape shape is between 0 degree ~ 15 degree.
Wherein, the flange components have multiple notches used for positioning.
Wherein, in assembling, the notch of the flange components is matched with the locating piece on blue laws orchid that hangs in presurized water reactor,
And upper surface is in same plane；And pressurized water reactor core lower plate is pressed against on the flange components and the locating piece.
Wherein, the ellipsoid structure and flange components, the cylinder-like structure and flange components use stainless steel
Material is integrally formed to be formed.
Implement the present invention, have it is following the utility model has the advantages that
Firstly, the novel reactor core inlet flow rate distributor of the embodiment of the present invention, by the way that multiple discharge orifices are set according to certain rules
It sets in half ellipsoidal surface structure or cylinder-like structure, coolant can be made to enter heap chamber more evenly；
Secondly, discharge orifice is arranged to both sides pyramidal fashion, and transition position rounded corner, it is possible to reduce the generation of vortex；
Furthermore it is possible to directly adopt the mounting means of compression to carry out the flange of reactor core inlet flow rate distributor and hanging basket flange
Between fixation, installation process is simpler.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other drawings based on these drawings.
Fig. 1 is a kind of front view of one embodiment of novel reactor core inlet flow rate distributor provided by the invention；
Fig. 2 is the top view in Fig. 1；
Fig. 3 is the vertical section schematic diagram of a metering orifice in Fig. 1；
Fig. 4 is a kind of scheme of installation of novel reactor core inlet flow rate distributor provided by the invention；
Fig. 5 is a kind of scheme of installation of another embodiment of novel reactor core inlet flow rate distributor provided by the invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
As shown in Figure 1, showing a kind of one embodiment of novel reactor core inlet flow rate distributor provided by the invention
Front view, together combine Fig. 2 to Fig. 4 shown in, in this embodiment, which is set to
Under the reactor core lower plate 3 of presurized water reactor comprising:
Device noumenon, described device ontology are lower end closed, and the semi-closed structure of upper end opening, described device ontology is with uniform thickness
Outer wall, multiple discharge orifices 100 are offered on the outer wall；
Extend flange components 11 at the edge of the upper end opening of described device ontology；
In the present embodiment, described device ontology is the half ellipsoidal surface structure 10 of equal wall thickness；
In the flange components 11 that the edge of the half ellipsoidal surface structure 10 extends to form；In some instances, the ellipsoid knot
Structure 10 and flange components 11 can be integrally formed to be formed using stainless steel material.
Wherein, using the center of 10 bottom surface of half ellipsoidal surface structure as origin, multi-turn circle discharge orifice 100, institute are disposed with
State discharge orifice 100 direction is vertical with the surface of flange components 11 or normal direction along half ellipsoidal surface structure 10.At least positioned at periphery
100 aperture of discharge orifice of one circle is less than the aperture of its cocycle discharge orifice 100, and the discharge orifice of outermost two circle is shown in Fig. 2
100 aperture is smaller.
It is understood that in the present embodiment, each discharge orifice 100 is equidistantly arranged in each circle round discharge orifice 100
Cloth.Further, in some embodiments, it can also be placed equidistant between each circle；It, can be in other some embodiments
According to a distance from central point by closely to remote sequence, the distance between described each circle is become larger.
Specifically, the flange components 11 have multiple notches 110 used for positioning, show four in figure, when can be with
Understand, in other examples, the notch 110 of other quantity can also be set.
Wherein, in one embodiment, the discharge orifice 100 has inside conical by its shape along the both ends of center line,
Entrance and the crossover position of intermediate intersection are provided with rounded corner.Wherein, folded by the conical surface and center line of the dimension shape shape
Angle (angle a) is between 0 degree ~ 15 degree, and wherein the radius R of rounded corner is determined according to actual needs.
As shown in figure 4, in assembling, the notch 110 of the flange components 11 and hanging on blue laws orchid 2 in presurized water reactor 4
Locating piece 200 is matched to realize radial positioning, and the two upper surface is in same plane；And pressurized water reactor core lower plate 3 is pressed against
On the flange components 11 and the locating piece 200.
As shown in figure 5, showing a kind of another implementation of novel reactor core inlet flow rate distributor provided by the invention
The scheme of installation of example.In the present embodiment, the difference with reactor core inlet flow rate distributor shown in Fig. 1 essentially consists in
The shape of device noumenon.Specifically, in the present embodiment, described device ontology is the cylinder-like structure 50 of equal wall thickness；In the circle
The upper end-face edge of tubular structure 50 extends flange components 51, and wherein flange components 51 can pass through the structures such as bolt and hanging basket method
Blue 2 phases are fixed；The cylinder-like structure 50 and flange components 51 are integrally formed to be formed using stainless steel material.
Wherein, multi-turn circle discharge orifice 100, each circle circle are disposed on the periphery of the cylinder-like structure 50
Each equidistantly arrangement of discharge orifice 100 in discharge orifice 100.The specific structure of each discharge orifice 100 is referred to aforementioned retouch Fig. 3
It states, herein without repeating.
Implement the present invention, have it is following the utility model has the advantages that
Firstly, the novel reactor core inlet flow rate distributor of the embodiment of the present invention, by the way that multiple discharge orifices are set according to certain rules
It sets in half ellipsoidal surface structure or cylinder-like structure, coolant can be made to enter heap chamber more evenly；
Secondly, discharge orifice is arranged to both sides pyramidal fashion, and transition position rounded corner, it is possible to reduce the generation of vortex；
Furthermore it is possible to directly adopt the mounting means of compression to carry out the flange of reactor core inlet flow rate distributor and hanging basket flange
Between fixation, installation process is simpler.
Above disclosed is only a preferred embodiment of the present invention, cannot limit the power of the present invention with this certainly
Sharp range, therefore equivalent changes made in accordance with the claims of the present invention, are still within the scope of the present invention.
Claims (10)
1. a kind of novel reactor core inlet flow rate distributor, is set under the reactor core lower plate of presurized water reactor, which is characterized in that packet
It includes:
Device noumenon, described device ontology are lower end closed, and the semi-closed structure of upper end opening, described device ontology is with uniform thickness
Outer wall, multiple discharge orifices (100) are offered on the outer wall；
Extend flange components (11) at the edge of the upper end opening of described device ontology.
2. novel reactor core inlet flow rate distributor as described in claim 1, which is characterized in that described device ontology is to wait walls
Thick half ellipsoidal surface structure (10)；
Extend flange components (11) at the edge of the half ellipsoidal surface structure (10)；
Wherein, using the center of half ellipsoidal surface structure (10) bottom surface as origin, it is disposed with multi-turn circle discharge orifice (100), often
Each discharge orifice (100) is equidistantly arranged in the one circle round discharge orifice (100).
3. novel reactor core inlet flow rate distributor as claimed in claim 2, which is characterized in that positioned at least one circle of periphery
Discharge orifice (100) aperture is less than the aperture of its cocycle discharge orifice (100).
4. novel reactor core inlet flow rate distributor as claimed in claim 3, which is characterized in that according to a distance from central point
By closely to remote sequence, the distance between described each circle discharge orifice (100) is become larger.
5. novel reactor core inlet flow rate distributor as described in claim 1, which is characterized in that described device ontology is to wait walls
Thick cylinder-like structure (50)；
Extend flange components (51) in the upper end-face edge of the cylinder-like structure (50)；
Wherein, multi-turn circle discharge orifice (100), each circle circle are disposed on the periphery of the cylinder-like structure (50)
Each discharge orifice (100) is equidistantly arranged in discharge orifice (100).
6. such as novel reactor core inlet flow rate distributor described in any one of claim 1 to 5, which is characterized in that the flowing water
Hole (100) has inside conical by its shape along the both ends of center line, is provided with down in the crossover position of entrance and intermediate intersection
Fillet.
7. novel reactor core inlet flow rate distributor as claimed in claim 6, which is characterized in that the conical surface of the dimension shape shape
It is between 0 degree ~ 15 degree with angle folded by center line.
8. novel reactor core inlet flow rate distributor as claimed in claim 6, which is characterized in that flange components (11) tool
There are multiple notches used for positioning (110).
9. novel reactor core inlet flow rate distributor as claimed in claim 6, which is characterized in that in assembling, the flange
The notch (110) of component (11) is matched with the locating piece (200) on blue laws blue (2) that hangs in presurized water reactor (4), and table in the two
Face is in same plane；And pressurized water reactor core lower plate (3) be pressed against the flange components (11) and the locating piece (200) it
On.
10. novel reactor core inlet flow rate distributor as claimed in claim 7, which is characterized in that the ellipsoid structure
(10) and flange components (11), the cylinder-like structure (50) and flange components (51) are integrally formed using stainless steel material
It is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810803831.0A CN109065194A (en) | 2018-07-20 | 2018-07-20 | A kind of novel reactor core inlet flow rate distributor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810803831.0A CN109065194A (en) | 2018-07-20 | 2018-07-20 | A kind of novel reactor core inlet flow rate distributor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109065194A true CN109065194A (en) | 2018-12-21 |
Family
ID=64816006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810803831.0A Pending CN109065194A (en) | 2018-07-20 | 2018-07-20 | A kind of novel reactor core inlet flow rate distributor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109065194A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112185598A (en) * | 2020-09-30 | 2021-01-05 | 中国核动力研究设计院 | Stacking type flow distribution device and distribution structure |
| CN113814080A (en) * | 2021-08-11 | 2021-12-21 | 中船澄西船舶修造有限公司 | Novel water collecting distributor |
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| CN107551626A (en) * | 2017-08-28 | 2018-01-09 | 共享装备股份有限公司 | Reducing straight hole filter |
| CN108010590A (en) * | 2017-12-18 | 2018-05-08 | 岭澳核电有限公司 | Protrusion type bottom nozzle and fuel assembly |
| CN207540202U (en) * | 2017-08-02 | 2018-06-26 | 宁波奥克斯电气股份有限公司 | Branching unit |
| CN208873488U (en) * | 2018-07-20 | 2019-05-17 | 中广核研究院有限公司 | A kind of novel reactor core inlet flow rate distributor |
-
2018
- 2018-07-20 CN CN201810803831.0A patent/CN109065194A/en active Pending
Patent Citations (14)
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| JPH08271672A (en) * | 1995-03-31 | 1996-10-18 | Toshiba Corp | Reactor and fuel assembly provided with flow resistant element |
| US6463810B1 (en) * | 1999-04-13 | 2002-10-15 | Institute Of Nuclear Energy Research (Iner) | Method and device for bi-directional low-velocity flow measurement |
| CN1637956A (en) * | 2004-01-05 | 2005-07-13 | 西屋电气有限责任公司 | Nuclear fuel assembly debris filter bottom nozzle |
| CN202093002U (en) * | 2011-01-19 | 2011-12-28 | 常州工程职业技术学院 | Distribution plate capable of improving separating efficiency for column head of preparative chromatographic column |
| CN103474106A (en) * | 2012-06-08 | 2013-12-25 | 中国核动力研究设计院 | Ellipsoid-type flow distributor |
| CN103871500A (en) * | 2012-12-14 | 2014-06-18 | 中国核动力研究设计院 | Nuclear reactor lower chamber cylinder-like flow distribution apparatus |
| CN103507261A (en) * | 2013-09-25 | 2014-01-15 | 张家港市兰航机械有限公司 | Flow distribution plate in extruding machine |
| CN104409114A (en) * | 2014-12-12 | 2015-03-11 | 中国科学院合肥物质科学研究院 | Flow distribution device used for tank-type forced circulation reactor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112185598A (en) * | 2020-09-30 | 2021-01-05 | 中国核动力研究设计院 | Stacking type flow distribution device and distribution structure |
| CN112185598B (en) * | 2020-09-30 | 2022-02-01 | 中国核动力研究设计院 | Stacking type flow distribution device and distribution structure |
| CN113814080A (en) * | 2021-08-11 | 2021-12-21 | 中船澄西船舶修造有限公司 | Novel water collecting distributor |
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