CN207116013U - Pressurized water nuclear reactor nested type component - Google Patents
Pressurized water nuclear reactor nested type component Download PDFInfo
- Publication number
- CN207116013U CN207116013U CN201721038079.2U CN201721038079U CN207116013U CN 207116013 U CN207116013 U CN 207116013U CN 201721038079 U CN201721038079 U CN 201721038079U CN 207116013 U CN207116013 U CN 207116013U
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- Prior art keywords
- flow distribution
- layer flow
- distribution drum
- discharge orifice
- outer layer
- Prior art date
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- Withdrawn - After Issue
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 81
- 239000004744 fabric Substances 0.000 claims description 2
- 239000002826 coolant Substances 0.000 abstract description 22
- 239000002184 metal Substances 0.000 abstract description 6
- 229910052751 metal Inorganic materials 0.000 abstract description 6
- 230000004907 flux Effects 0.000 abstract description 5
- 230000001629 suppression Effects 0.000 abstract description 3
- 238000003466 welding Methods 0.000 description 7
- 238000009434 installation Methods 0.000 description 4
- 230000004992 fission Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000003758 nuclear fuel Substances 0.000 description 2
- 241000233855 Orchidaceae Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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
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- Structure Of Emergency Protection For Nuclear Reactors (AREA)
Abstract
Pressurized water nuclear reactor nested type component, including the internal layer flow distribution drum and outer layer flow distribution drum and outer layer flow distribution plate of multiple discharge orifices are provided with barrel；Outer layer flow distribution drum upper end is provided with the outward flange being connected with reactor core lower support plate, and the quantity of outer layer flow distribution plate is at least three, multiple discharge orifices are provided with plate face；Internal layer flow distribution drum is placed on the inner chamber of outer layer flow distribution drum and their center line overlaps, the annular space dispersed placement that each outer layer flow distribution plate surrounds in inner laminar flow amount distribution drum outer wall with outer layer flow distribution drum inwall, and the outer wall with internal layer flow distribution drum, the inwall of outer layer flow distribution drum are connected respectively for the two sides of each outer layer flow distribution plate.The nested type component is used for coolant flux distribution, can reduce the decay of coolant flow at reactor core ingress edge, prevents play and the amount of metal that disturbs and disappear whirlpool suppression and increase be fused into of the cooling agent in bottom chamber.
Description
Technical field
The utility model belongs to technical field of nuclear power, is related to a kind of being applied to for pressurized water nuclear reactor bottom chamber installation
The component (or device) of coolant flux distribution.
Background technology
Reactor nuclear power station act like be power station turbine-generator units, it may be said that it is whole nuclear power station
The heart of system.Wherein, nuclear fuel maintains controllable chain reaction of nuclear fission inside reactor, and energy caused by nuclear fission makes stream
The coolant temperature rise of reacted heap, then heat is exported from heap core inner by coolant circulation circuit.In this process
In, reactor coolant will directly influence the Temperature Distribution of reactor core in the distribution uniformity coefficient of heap in-core, while opposite heat tube because
The reactor core critical security parameter such as son, DNBR has a major impact.
In order that fuel assembly is adequately cooled, meet the requirement of reactor thermo-hydraulics, lifting reactor entirety
Performance, then before reactor core is entered, its uniformity needs to be guaranteed cooling agent, because it is related to the generation of reactor fuel component
Heat can in time and smoothly export；In addition, in terms of the security evaluation of nuclear power station, if can occur in major accident operating mode
Reactor core melts, and all in-pile components, which include flow distribution device, below reactor core can all be melted into liquid, with internal pressure vessel walls
Contact, reactor core heat is exported.Then, it is necessary to there are enough metals to be contacted with internal pressure vessel walls, with this under the operating mode accident
To increase heat transfer area, ensure that reactor pressure vessel will not be fused, cause the major disasters such as nuclear leakage.
In order to achieve the above object, the structure of flow distribution device is extremely important.A variety of streams have been disclosed in the prior art
Distributor is measured, in order to overcome complicated, assignment of traffic effect existing for the flow distribution device of conventional holes plank frame not
Preferable and installation, the problem of more difficult is overhauled, the structure of flow distribution device is in the form of porous bowl shaped structure in recent years
Based on (see ZL201210126989.1, ZL201210137211.0, ZL201410188559.1), the flow of such structure type
Although distributor simplifies structure, improve the uniformity of assignment of traffic, is conveniently replaceable and overhauls, but also exist it is following not
Foot：Flow of the cooling agent at reactor core ingress edge has greater attenuation；It is difficult to eliminate play of the cooling agent in bottom chamber with disturbing
Vortex caused by dynamic and low head concave inward structure；When major accident operating mode occurs, metal that flow distribution device is fused into
Measure on the low side.
Utility model content
The purpose of this utility model is overcome the deficiencies in the prior art, there is provided a kind of pressurized water nuclear reactor nested type group
Part, to reduce the decay of coolant flow at reactor core ingress edge, prevent cooling agent in the play of bottom chamber with disturbing and disappearing
The amount of metal that whirlpool suppression and increase are fused into.
Pressurized water nuclear reactor nested type component described in the utility model, including internal layer flow distribution drum, outer layer flow point
With cylinder and outer layer flow distribution plate；The outer layer flow distribution drum is the cylinder of both ends open, and multiple streams are provided with its barrel
Water hole, upper end are provided with the outward flange being connected with reactor core lower support plate, and the radial dimension of its inner chamber is more than internal layer flow distribution drum
Radial direction outer profile size；The internal layer flow distribution drum is the cylinder of both ends open, and multiple discharge orifices are provided with its barrel；
The quantity of the outer layer flow distribution plate is at least three, and multiple discharge orifices are provided with plate face；Internal layer flow distribution drum is placed
Overlapped in the inner chamber of outer layer flow distribution drum and their center line, each outer layer flow distribution plate distributes drum outer wall in inner laminar flow amount
The annular space dispersed placement surrounded with outer layer flow distribution drum inwall, and the two sides of each outer layer flow distribution plate respectively with it is interior
Outer wall, the inwall of outer layer flow distribution drum of laminar flow amount distribution drum are connected, by internal layer flow distribution drum and outer layer flow distribution drum
It is combined into one, forms nesting type structure.
In order to more effectively prevent play and disturb and disappear whirlpool suppression and increase pressurized water type core of the cooling agent in bottom chamber
The amount of metal that reactor nested type component is fused into, internal layer flow distribution baffle, the quantity of the internal layer flow distribution baffle can be set
At least two, multiple discharge orifices are provided with plate face, each internal layer flow distribution baffle is arranged on the inner chamber of internal layer flow distribution drum,
Inwall of their one side respectively with internal layer flow distribution drum is connected, and another side is mutually connected, by internal layer flow distribution drum
Inner chamber is separated into multiple sections.
Above-mentioned pressurized water nuclear reactor nested type component, internal layer flow distribution drum and outer layer flow distribution drum preferably drum body
Or up big and down small truncated cone cylinder, assembling form have：Internal layer flow distribution drum and outer layer flow distribution drum are cylinder,
Either internal layer flow distribution drum and outer layer flow distribution drum are up big and down small truncated cone cylinder or outer layer flow distribution
Cylinder be cylinder, internal layer flow distribution drum is up big and down small truncated cone cylinder, or outer layer flow distribution drum for it is upper greatly under
Small truncated cone cylinder, internal layer flow distribution drum are cylinder.
Above-mentioned pressurized water nuclear reactor nested type component, internal layer flow distribution drum, the height of outer layer flow distribution drum can be with
It is：The height of internal layer flow distribution drum and outer layer flow distribution drum is equal, or the height of internal layer flow distribution drum is more than outer layer
The height of assignment of traffic cylinder, or internal layer flow distribution drum height be less than outer layer flow distribution drum height.
Above-mentioned pressurized water nuclear reactor nested type component, the discharge orifice set on outer layer flow distribution drum barrel is in multilayer loop
Shape arranges, and the water flowing gross area in each laminar flow water hole is identical or incremented by successively from upper strata to lower floor, and adjacent the two of each laminar flow water hole
Individual discharge orifice opening direction is identical or staggeredly angled, each discharge orifice one-to-one corresponding of adjacent two layers discharge orifice or staggeredly cloth
Put, the corresponding discharge orifice opening direction of adjacent two layers discharge orifice is identical or staggeredly angled；Internal layer flow distribution drum barrel
The discharge orifice of upper setting arranges in multi-layer annular, and the water flowing gross area in each laminar flow water hole is identical or is passed successively from upper strata to lower floor
Increase, each discharge orifice of adjacent two layers discharge orifice corresponds or interlaced arrangement.
Above-mentioned pressurized water nuclear reactor nested type component, set on internal layer flow distribution baffle, outer layer flow distribution plate plate face
Discharge orifice be arranged in multirow, each discharge orifice of adjacent rows discharge orifice corresponds or interlaced arrangement.
Above-mentioned pressurized water nuclear reactor nested type component, the spacing between internal layer flow distribution drum and outer layer flow distribution drum
At least 400mm.
Above-mentioned pressurized water nuclear reactor nested type component, internal layer flow distribution drum, outer layer flow distribution drum, outer layer flow point
The discharge orifice set on matching board and internal layer flow distribution baffle is shaped as circular, ellipse or polygon.
Above-mentioned pressurized water nuclear reactor nested type component, internal layer flow distribution drum, outer layer flow distribution drum, outer layer flow point
The thickness of matching board and internal layer flow distribution baffle is mainly to meet that intensity needs consider.
Above-mentioned pressurized water nuclear reactor nested type component, outer layer flow distribution plate and internal layer flow distribution drum, outer layer flow
Being connected for distribution drum can be by welding or being threadedly coupled realization, and internal layer flow distribution baffle can with being connected for internal layer flow distribution drum
Realized so that by welding or being threadedly coupled realization, being connected between internal layer flow distribution baffle can pass through to weld.
Above-mentioned pressurized water nuclear reactor nested type component, outer layer flow distribution drum and outward flange are integrated or combined
Formula structure, can be by forging or suppressing global formation if being integrated, can be by welding by outside if fabricated structure
Laminar flow amount distribution drum and outward flange are connected.
Pressurized water nuclear reactor nested type component described in the utility model maintains existing porous bowl shaped structure formula flow point
With device it is simple in construction, be conveniently replaceable and overhaul the advantages of, and there are following different advantageous effects：
(1) pressurized water nuclear reactor nested type component described in the utility model is used, cooling agent holds through declining chamber along pressure
During device low head top periphery enters lower chambers, formed between external flux distribution drum and lower head of pressure vessel top
The class cone annular runner of " wide at the top and narrow at the bottom ", during by such cone annular runner, pressure can gradually increase cooling agent, promote
A part of cooling agent is directly entered reactor core entrance surrounding along the discharge orifice on external flux distribution drum barrel, thus reduces cooling
Decay of the agent flux at reactor core ingress edge, make cooling agent more uniform in reactor core porch assignment of traffic.
(2) pressurized water nuclear reactor described in the utility model nested type component, takes full advantage of and is spatially separating principle, outside
The combination of laminar flow amount distribution drum, outer layer flow distribution plate and internal layer flow distribution drum, or outer layer flow distribution drum, outer layer flow point
The combination of matching board, internal layer flow distribution drum and internal layer flow distribution baffle, the flowing space of lower chambers cooling agent is divided into several
Section, thus can effectively prevent mutual play and the disturbance of different zones cooling agent so that lower chambers cooling agent is more stable equal
It is even.
(3) due to the semicircle arcuation that lower head of pressure vessel bottom interior wall is fovea superior, thus coolant flow is through low head bottom
A large amount of vortex can be produced during portion, this largely have impact on the stability of lower chambers cooling agent and reactor core porch flow point
The uniformity matched somebody with somebody, the structure of pressurized water nuclear reactor nested type component described in the utility model, it can eliminate significantly because of low head
Vortex caused by bottom wall, make assignment of traffic effect more preferable.
(4) pressurized water nuclear reactor nested type component described in the utility model, the operating mode of major accident occurs in nuclear power station
Under, outer layer, internal layer flow distribution drum and outer layer, internal layer flow distribution baffle can all be melted into liquid, thus have enough
Metal contacts with internal pressure vessel walls, increases heat transfer area with this, avoids the reactor pressure vessel from being fused, improves safety
Property.
Brief description of the drawings
Fig. 1 is the first structural representation of pressurized water nuclear reactor nested type component described in the utility model.
Fig. 2 is the shape and structural representation of outer layer flow distribution drum in Fig. 1；
Fig. 3 is the partial enlarged drawing at A in Fig. 2.
Fig. 4 is the shape and structural representation of internal layer flow distribution drum in Fig. 1；
Fig. 5 is the shape and structural representation of outer layer flow distribution plate or internal layer flow distribution baffle in Fig. 1.
Fig. 6 is second of structural representation of pressurized water nuclear reactor nested type component described in the utility model.
Fig. 7 is the third structural representation of pressurized water nuclear reactor nested type component described in the utility model.
Fig. 8 is the 4th kind of structural representation of pressurized water nuclear reactor nested type component described in the utility model.
Fig. 9 is pressurized water nuclear reactor nested type component described in the utility model in nuclear reactor pressure container lower chambers
Scheme of installation.
In figure, 1- outward flanges, 2- internal layer flow distribution baffles, 3- internal layer flow distribution drums, 4- outer layer flow distribution plates, outside 5-
Laminar flow amount distribution drum, 6- hanging basket components, 7- reactor core lower support plates, 8- decline chamber, 9- lower chambers, 10- lower head of pressure vessel.
Embodiment
Pressurized water nuclear reactor nested type component described in the utility model is made by way of example and in conjunction with the accompanying drawings into
One step explanation.
Embodiment 1
In the present embodiment, pressurized water nuclear reactor nested type component is as shown in figure 1, by internal layer flow distribution drum 3, outer laminar flow
Amount distribution drum 5, outer layer flow distribution plate 4, internal layer flow distribution baffle 2 and outward flange 1 are formed.
The outer layer flow distribution drum 5 is provided with multiple streams as shown in Fig. 2 cylinder for both ends open on its barrel
Water hole, the discharge orifice are in four layers of annular array, and the water flowing gross area in each laminar flow water hole is incremented by successively from upper strata to lower floor；Such as figure
Shown in 3, each laminar flow water hole is shaped as rectangle, from top to bottom, first layer, the two neighboring discharge orifice opening of second layer discharge orifice
Direction is staggeredly angled, and third layer, the two neighboring discharge orifice opening direction in the 4th laminar flow water hole are identical, adjacent two layers stream
Each discharge orifice interlaced arrangement in water hole, the corresponding discharge orifice opening direction of adjacent two layers discharge orifice are staggeredly angled；Outer method
Orchid 1 is arranged on the upper end of outer layer flow distribution drum 5, is connected by welding.
The internal layer flow distribution drum 3 is as shown in figure 4, be both ends open, up big and down small truncated cone cylinder, its barrel
On be provided with multiple discharge orifices, the discharge orifice is circle, in nine layers of annular array, the water flowing gross area phase in each laminar flow water hole
Together, each discharge orifice of adjacent two layers discharge orifice corresponds.
The internal diameter of the outer layer flow distribution drum 5 is more than the radial direction outer profile size of internal layer flow distribution drum 3, is highly less than
The height of internal layer flow distribution drum 3, after combination, the minimum spacing between internal layer flow distribution drum 3 and outer layer flow distribution drum 5 is
Outer layer flow distribution drum 5 is stretched out in 400mm, the lower end of internal layer flow distribution drum 3.
The outer layer flow distribution plate 4 is four, and internal layer flow distribution baffle 2 is four, their shape and structure such as Fig. 5
It is shown, it is trapezoidal plate, multiple circular discharge orifices is provided with plate face, the discharge orifice is arranged in ten rows, adjacent rows discharge orifice
Each discharge orifice correspond.
The combination of above-mentioned each component：Internal layer flow distribution drum 3 be placed on the inner chamber of outer layer flow distribution drum 5 and they
Center line overlap, four outer layer flow distribution plates 4 enclose in the outer wall of inner laminar flow amount distribution drum 3 and the inwall of outer layer flow distribution drum 5
Into annular space be evenly arranged, the two sides of each outer layer flow distribution plate outer wall with internal layer flow distribution drum 3, outer layer respectively
The inwall of assignment of traffic cylinder 5 is connected by welding, and internal layer flow distribution drum 3 and outer layer flow distribution drum 5 is combined into one, shape
Into nesting type structure, four internal layer flow distribution baffles 2 are arranged on the inner chamber of internal layer flow distribution drum 3, are arranged in " cross ", it
One side be connected respectively with the inwall of internal layer flow distribution drum 3 by welding, another side is mutually connected by welding, will
The inner chamber of internal layer flow distribution drum 3 is separated into four sections.
Installation of the pressurized water nuclear reactor nested type component in nuclear reactor pressure container lower chambers in the present embodiment
Mode is fixed with bolt as shown in figure 9, combined by outward flange 1 with reactor core lower support plate 7.
Embodiment 2
In the present embodiment, pressurized water nuclear reactor nested type component is as shown in fig. 6, by internal layer flow distribution drum 3, outer laminar flow
Amount distribution drum 5, outer layer flow distribution plate 4, internal layer flow distribution baffle 2 and outward flange 1 are formed.
Difference from Example 1 is：(1) internal layer flow distribution drum 3 is the cylinder of both ends open；(2) outer layer flow
Distribution plate 4 and internal layer flow distribution baffle 2 are rectangular slab；(3) height of outer layer flow distribution drum 5 and internal layer flow distribution drum 3
Highly identical, after combination, the spacing between internal layer flow distribution drum 3 and outer layer flow distribution drum 5 is 500mm.
Embodiment 3
In the present embodiment, pressurized water nuclear reactor nested type component is as shown in fig. 7, by internal layer flow distribution drum 3, outer laminar flow
Amount distribution drum 5, outer layer flow distribution plate 4, internal layer flow distribution baffle 2 and outward flange 1 are formed.
Difference from Example 1 is：(1) outer layer flow distribution drum 5 is both ends open, up big and down small truncated cone cylinder
Body, and taper and internal layer flow distribution drum 3 just as；(2) the water flowing gross area phase in each laminar flow water hole of outer layer flow distribution drum 5
Together；(3) height of outer layer flow distribution drum 5 is identical with the height of internal layer flow distribution drum 3, after combination, internal layer flow distribution drum 3
Spacing between outer layer flow distribution drum 5 is 600mm.
Embodiment 4
In the present embodiment, pressurized water nuclear reactor nested type component is as shown in figure 8, by internal layer flow distribution drum 3, outer laminar flow
Amount distribution drum 5, outer layer flow distribution plate 4 and outward flange 1 are formed.
Difference from Example 1 is：(1) outer layer flow distribution drum 5 is both ends open, up big and down small truncated cone cylinder
Body, internal layer flow distribution drum 3 are the cylinder of both ends open；(2) it is not provided with internal layer flow distribution baffle 2；(3) outer layer flow distributes
The water flowing gross area in each laminar flow water hole of cylinder 5 is identical；(4) height of outer layer flow distribution drum 5 is more than internal layer flow distribution drum 3
Highly, after combination, the minimum spacing between internal layer flow distribution drum 3 and outer layer flow distribution drum 5 is 500mm.
In above-described embodiment, internal layer flow distribution drum 3, outer layer flow distribution drum 5, outer layer flow distribution plate 4, internal layer flow
Distribution plate 2 and outward flange 1 make of stainless steel.
Claims (10)
1. a kind of pressurized water nuclear reactor nested type component, it is characterised in that including internal layer flow distribution drum (3), outer layer flow point
With cylinder (5) and outer layer flow distribution plate (4)；The outer layer flow distribution drum (5) is the cylinder of both ends open, is set on its barrel
There are multiple discharge orifices, upper end is provided with the outward flange (1) being connected with reactor core lower support plate (7), and the radial dimension of its inner chamber is more than
The radial direction outer profile size of internal layer flow distribution drum (3)；The internal layer flow distribution drum (3) be both ends open cylinder, its cylinder
Multiple discharge orifices are provided with wall；The quantity of the outer layer flow distribution plate (4) is at least three, and multiple streams are provided with plate face
Water hole；
Internal layer flow distribution drum (3) is placed on the inner chamber of outer layer flow distribution drum (5) and their center line overlaps, each outer laminar flow
Amount distribution plate (4) disperses cloth in the annular space that inner laminar flow amount distribution drum (3) outer wall and outer layer flow distribution drum (5) inwall surround
Put, and the two sides of each outer layer flow distribution plate outer wall with internal layer flow distribution drum (3), outer layer flow distribution drum (5) respectively
Inwall be connected, internal layer flow distribution drum (3) and outer layer flow distribution drum (5) are combined into one, formed nesting type structure.
2. pressurized water nuclear reactor nested type component according to claim 1, it is characterised in that also including internal layer assignment of traffic
Plate (2), the quantity at least two of the internal layer flow distribution baffle (2), multiple discharge orifices, each internal layer flow is provided with plate face
Distribution plate (2) be arranged on internal layer flow distribution drum (3) inner chamber, their one side respectively with internal layer flow distribution drum (3)
Inwall is connected, and another side is mutually connected, and internal layer flow distribution drum (3) inner chamber is separated into multiple sections.
3. pressurized water nuclear reactor nested type component according to claim 2, it is characterised in that internal layer flow distribution drum (3),
The discharge orifice set on outer layer flow distribution drum (5), outer layer flow distribution plate (4) and internal layer flow distribution baffle (2) is shaped as justifying
Shape, ellipse or polygon.
4. the pressurized water nuclear reactor nested type component according to any claim in claims 1 to 3, it is characterised in that interior
Laminar flow amount distribution drum (3) and outer layer flow distribution drum (5) are cylinder, or internal layer flow distribution drum (3) and outer layer flow
Distribution drum (5) is up big and down small truncated cone cylinder, or outer layer flow distribution drum (5) is cylinder, internal layer flow point
It is up big and down small truncated cone cylinder with cylinder (3), or outer layer flow distribution drum (5) is up big and down small truncated cone cylinder
Body, internal layer flow distribution drum (3) are cylinder.
5. the pressurized water nuclear reactor nested type component according to any claim in claims 1 to 3, it is characterised in that interior
The height of laminar flow amount distribution drum (3) and outer layer flow distribution drum (5) is equal, or the height of internal layer flow distribution drum (3) is more than
The height of outer layer flow distribution drum (5), or internal layer flow distribution drum (3) height be less than outer layer flow distribution drum (5) height
Degree.
6. pressurized water nuclear reactor nested type component according to claim 4, it is characterised in that internal layer flow distribution drum (3) and
The height of outer layer flow distribution drum (5) is equal, or the height of internal layer flow distribution drum (3) is more than outer layer flow distribution drum (5)
Height, or internal layer flow distribution drum (3) height be less than outer layer flow distribution drum (5) height.
7. the pressurized water nuclear reactor nested type component according to any claim in claims 1 to 3, it is characterised in that outer
The discharge orifice set on laminar flow amount distribution drum (5) barrel in multi-layer annular arrange, the water flowing gross area in each laminar flow water hole it is identical or
Incremented by successively from upper strata to lower floor, the two neighboring discharge orifice opening direction in each laminar flow water hole is identical or is staggered into certain angle
Degree, each discharge orifice of adjacent two layers discharge orifice corresponds or interlaced arrangement, the corresponding discharge orifice opening of adjacent two layers discharge orifice
Direction is identical or staggeredly angled；
The discharge orifice set on internal layer flow distribution drum (3) barrel arranges in multi-layer annular, the water flowing gross area in each laminar flow water hole
Identical or incremented by successively from upper strata to lower floor, each discharge orifice of adjacent two layers discharge orifice corresponds or interlaced arrangement.
8. pressurized water nuclear reactor nested type component according to claim 4, it is characterised in that outer layer flow distribution drum (5) cylinder
The discharge orifice set on wall arranges in multi-layer annular, and the water flowing gross area in each laminar flow water hole is identical or is passed successively from upper strata to lower floor
Increase, the two neighboring discharge orifice opening direction in each laminar flow water hole is identical or staggeredly angled, adjacent two layers discharge orifice
Each discharge orifice corresponds or interlaced arrangement, and the corresponding discharge orifice opening direction of adjacent two layers discharge orifice is identical or is staggered into certain
Angle；
The discharge orifice set on internal layer flow distribution drum (3) barrel arranges in multi-layer annular, the water flowing gross area in each laminar flow water hole
Identical or incremented by successively from upper strata to lower floor, each discharge orifice of adjacent two layers discharge orifice corresponds or interlaced arrangement.
9. pressurized water nuclear reactor nested type component according to claim 5, it is characterised in that outer layer flow distribution drum (5) cylinder
The discharge orifice set on wall arranges in multi-layer annular, and the water flowing gross area in each laminar flow water hole is identical or is passed successively from upper strata to lower floor
Increase, the two neighboring discharge orifice opening direction in each laminar flow water hole is identical or staggeredly angled, adjacent two layers discharge orifice
Each discharge orifice corresponds or interlaced arrangement, and the corresponding discharge orifice opening direction of adjacent two layers discharge orifice is identical or is staggered into certain
Angle；
The discharge orifice set on internal layer flow distribution drum (3) barrel arranges in multi-layer annular, the water flowing gross area in each laminar flow water hole
Identical or incremented by successively from upper strata to lower floor, each discharge orifice of adjacent two layers discharge orifice corresponds or interlaced arrangement.
10. pressurized water nuclear reactor nested type component according to claim 6, it is characterised in that outer layer flow distribution drum (5)
The discharge orifice set on barrel in multi-layer annular arrange, the water flowing gross area in each laminar flow water hole it is identical or from upper strata to lower floor successively
It is incremented by, the two neighboring discharge orifice opening direction in each laminar flow water hole is identical or staggeredly angled, adjacent two layers discharge orifice
Each discharge orifice correspond or interlaced arrangement, the corresponding discharge orifice opening direction of adjacent two layers discharge orifice is identical or is staggered into one
Determine angle；
The discharge orifice set on internal layer flow distribution drum (3) barrel arranges in multi-layer annular, the water flowing gross area in each laminar flow water hole
Identical or incremented by successively from upper strata to lower floor, each discharge orifice of adjacent two layers discharge orifice corresponds or interlaced arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721038079.2U CN207116013U (en) | 2017-08-18 | 2017-08-18 | Pressurized water nuclear reactor nested type component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721038079.2U CN207116013U (en) | 2017-08-18 | 2017-08-18 | Pressurized water nuclear reactor nested type component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207116013U true CN207116013U (en) | 2018-03-16 |
Family
ID=61569913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721038079.2U Withdrawn - After Issue CN207116013U (en) | 2017-08-18 | 2017-08-18 | Pressurized water nuclear reactor nested type component |
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| Country | Link |
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| CN (1) | CN207116013U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107658031A (en) * | 2017-08-18 | 2018-02-02 | 四川大学 | Pressurized water nuclear reactor nested type component |
-
2017
- 2017-08-18 CN CN201721038079.2U patent/CN207116013U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107658031A (en) * | 2017-08-18 | 2018-02-02 | 四川大学 | Pressurized water nuclear reactor nested type component |
| CN107658031B (en) * | 2017-08-18 | 2024-02-06 | 中国核动力研究设计院 | Nested assembly of pressurized water nuclear reactor |
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