CN107464594B - Containment recycles blocking apparatus - Google Patents
Containment recycles blocking apparatus Download PDFInfo
- Publication number
- CN107464594B CN107464594B CN201610388686.5A CN201610388686A CN107464594B CN 107464594 B CN107464594 B CN 107464594B CN 201610388686 A CN201610388686 A CN 201610388686A CN 107464594 B CN107464594 B CN 107464594B
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- Prior art keywords
- containment
- blocking apparatus
- movable
- recycles
- component
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Classifications
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21D—NUCLEAR POWER PLANT
- G21D3/00—Control of nuclear power plant
- G21D3/04—Safety arrangements
-
- 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
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Processing Of Solid Wastes (AREA)
- Structure Of Emergency Protection For Nuclear Reactors (AREA)
Abstract
The present invention discloses a kind of containment recycling blocking apparatus, it is set in the melt pit main body of containment, the height of the containment recycling blocking apparatus is less than the lowest water level in melt pit, and the containment recycling blocking apparatus includes the fixation kit that at least one is used to intercept fragment.Containment recycling blocking apparatus of the present invention not only mitigates weight, and can reduce difficulty of processing by modularized design, facilitate assembly and disassembly, significantly enhance adaptive capacity to environment, and is effectively reduced the fragment load of melt pit strainer, the pressure drop of melt pit strainer is reduced, melt pit strainer design capacity is improved.
Description
Technical field
The present invention relates to a kind of safety equipment of nuclear reactor safety shell more particularly to a kind of it can mitigate the broken of melt pit strainer
Piece load, reduces the pressure drop of melt pit strainer, improves melt pit strainer design capacity containment and recycles blocking apparatus.
Background technique
Containment sump is the weight of PWR nuclear power plant engineered safeguards features containment spray system and safety injection system
Want component part.It is mainly used under collecting the reactor coolant loop main pipeline cut loudspeaker in containment therefore operating condition from reaction
Reactor coolant system leak goes out the spray liquid of the reactor coolant and containment spray system that are, and the water in material-changing water tank
When using up, as the water source of safety injection system and containment spray system, guarantee safety injection system and container spray system
The recycling of system is run.
However, a large amount of fragment, such as thermal insulation material, paint, cement bits can be generated after loss of-coolant accident (LOCA) occurs, it can
It can be flowed into containment sump with the coolant liquid of leakage, in order to guarantee the normal of safety injection system and containment spray system
Operation, it is necessary to melt pit strainer be set in containment sump, these debris filters are fallen.However, recent studies have shown that, it is existing
The design of melt pit strainer it is blocked risk consider it is insufficient, the blocking of melt pit strainer will greatly influence containment spray system and
The normal operation of safety injection system threatens the safety of nuclear power plant.
Summary of the invention
The purpose of the present invention is to provide a kind of fragment loads that can mitigate melt pit strainer, reduce the pressure drop of melt pit strainer, mention
The containment of high melt pit strainer design capacity recycles blocking apparatus.
To achieve the goals above, containment recycling blocking apparatus provided by the invention is set to the melt pit master of containment
In vivo, the height of the containment recycling blocking apparatus is less than the lowest water level in melt pit, and the containment recycling intercepts
Device includes the fixation kit that at least one is used to intercept fragment.
Containment of the present invention recycling blocking apparatus can before melt pit strainer filtering to the recirculated cooling water in containment into
Row filtering effectively mitigates the fragment load of melt pit strainer to be intercepted in advance to a large amount of fragments after generation loss of-coolant accident (LOCA),
The pressure drop of melt pit strainer is reduced, melt pit strainer design capacity is improved, guarantees emergence core stacking cool system and containment in containment
The normal operation of heat-extraction system improves the safety of containment.
Preferably, the containment recycling blocking apparatus further includes movable component, the fixation kit is fixedly connected on
The side of the movable component.By the way that the movable component is arranged, the containment recycling blocking apparatus can be enable to open
Or close, to facilitate the disengaging of personnel.
Specifically, the containment recycling blocking apparatus further includes End assemblies, and the End assemblies are fixedly connected on
The other side of the movable component opposite with the fixation kit, and wall of the End assemblies in the containment
Edge.
Specifically, the movable component includes the movable plate that can be opened or closed, so as to pass through for personnel or equipment.
More specifically, the movable component is additionally provided with the automatic door closer that the movable plate is automatically closed, it is described automatic
Door closer carries out damping buffering to the movable plate when closing the movable plate.The automatic door closer is not only realized and is closed automatically
Door, and can prevent the movable plate from generating excessive impact force when closed, to avoid generating the movable component
Damage influences to intercept performance.
Specifically, the movable component further includes stand and baffle, and the centre of the stand is door, the movable plate
It is articulated in the stand and closes when closed the door, the baffle is fixed on the stand and is set to the work
Between the lower end and ground of movable plate.Since the movable plate is turntable, lower edge can be above the ground level certain altitude, because
This, is arranged the baffle, can be sealed between the movable plate and ground, thus prevent fragment from the movable plate with
Pass through between ground, effectively improves interception effect.
Preferably, the fixation kit includes vertical plate, transverse slat and fixed panel, the vertical plate is in be vertically arranged, the cross
For plate in being horizontally disposed with and being fixedly connected with the vertical plate, the fixed panel is fixed on the vertical plate and transverse slat institute component
The side of frame body.Frame body is formed by using vertical plate, transverse slat, then fixed panel is fixed on frame body, the fixation can be made
Component effectively reduces whole number of parts under the premise of proof strength, to reduce the weight of whole device, and reduces
Difficulty of processing.
More specifically, the End assemblies include end vertical plate, end panel, elastic block piece and multiple connecting plates, it is described
Connecting plate is in vertical distribution and is horizontally disposed with respectively, and the end vertical plate is separately connected the connecting plate, and the end panel is solid
Adjunction is determined in the side of the end vertical plate and the frame body of connecting plate composition, and the elastic block piece is fixed on the end face
The edge of plate is to be covered in the gap of the end panel and exterior wall.By using the end vertical plate, end panel and connection
Board group can reduce the weight of whole device at the End assemblies, and reduce difficulty of processing.And the elastic block piece can be with
It is sealed between the wall in the end panel and the containment, to prevent fragment from the end panel and wall
Pass through between body, effectively improves interception effect.
Specifically, the first spacing adjusting device is equipped between the movable component and the fixation kit.In order to more convenient
Ground is installed in the containment, leaves certain peace between the fixation kit meeting and the wall of the containment during installation
Gap is filled, however these gaps can make fragment that can pass through, and influence the interception performance of blocking apparatus, therefore, by being arranged described the
One spacing adjusting device can make the edge of the fixation kit as close as possible to the wall of the containment, thus as much as possible
Installation gap is reduced, interception effect is improved.
More specifically, being equipped with the second spacing adjusting device between the movable component and the End assemblies.Similarly, pass through
Second spacing adjusting device is set, the edge of the End assemblies can be made as close as possible to the wall of the containment, from
And installation gap is reduced as much as possible, improve interception effect.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the embodiment one of containment recycling blocking apparatus of the present invention.
Fig. 2 is the structure chart of the movable component of containment recycling blocking apparatus of the present invention.
Fig. 3 is the structure chart of the fixation kit of containment recycling blocking apparatus of the present invention.
Fig. 4 is the structure chart of the End assemblies of containment recycling blocking apparatus of the present invention.
Fig. 5 is the structure chart at the back side of the embodiment one of containment recycling blocking apparatus of the present invention.
Fig. 6 is the enlarged drawing of part A in Fig. 5.
Fig. 7 is the structural schematic diagram of the embodiment two of containment recycling blocking apparatus of the present invention.
Fig. 8 is the structural schematic diagram of the embodiment three of containment recycling blocking apparatus of the present invention.
Specific embodiment
For the technology contents that the present invention will be described in detail, construction feature, the effect realized, below in conjunction with embodiment and match
Attached drawing is closed to be explained in detail.
As shown in Figures 1 to 4, the knot of the embodiment one of containment recycling blocking apparatus 100 of the present invention is illustrated in figure
Structure, the containment recycling blocking apparatus 100 are set in the melt pit main body of containment, and the edge of the melt pit main body is formed
Melt pit strainer is arranged in the circular passage in circular passage, and the melt pit strainer occupies one section of the circular passage, the peace
Full shell recycling blocking apparatus 100 is then located at the both ends of melt pit strainer, and the height of the containment recycling blocking apparatus 100 is small
Lowest water level in melt pit.
Again referring to Fig. 1, the embodiment of the present invention containment recycling blocking apparatus 100 includes a fixation kit 1, one
A movable component 2 and an End assemblies 3, the fixation kit 1 are fixedly connected on the side of the movable component 2, the end
Parts 3 are fixedly connected on the other side of the movable component 2 opposite with the fixation kit 1, and the fixation kit 1 and
Wall edge of the End assemblies 3 in the containment.The movable component 2 can be such that the containment recycling blocks
Cutting device 100 can open or close, and can facilitate the disengaging of personnel when opening, can intercept when closed to fragment；And institute
It states fixation kit 1 and End assemblies 3 is also used for intercepting fragment.
Again referring to Fig. 2, specifically, the movable component 2 includes movable plate 21, two stands 22 and baffle 23；Described two
In being vertically arranged, the intermediate of two stands 22 forms door 2a for the stand 22, and the movable plate 21 is articulated in wherein one
The door 2a is closed in the stand 22 and when closed, is passed through when opening for personnel or equipment；The movable plate 21
Radius of turn be 888mm, opening angle is greater than 120 °.The baffle 23 is fixed on the stand 22 and is set to the activity
Between the lower end and ground of plate 21.Since the movable plate 21 is turntable, lower edge can be above the ground level certain altitude,
Therefore, the baffle 23 is set, can be sealed between the movable plate 21 and ground, to prevent fragment from the work
Pass through between movable plate 21 and ground, effectively improves interception effect.The movable component 2, which is additionally provided with, closes the movable plate 21 automatically
The automatic door closer closed, the automatic door closer carry out damping buffering to the movable plate 21 when closing the movable plate 21.
The structure of the automatic door closer is a kind of prior art, is not described in detail herein；The automatic door closer is not only realized certainly
It is dynamic to close door, and can prevent the movable plate 21 from generating excessive impact force when closed, to avoid to the activity group
Part 2 generates damage, influences to intercept performance.
Again referring to Fig. 3, the fixation kit 1 includes vertical plate 11, transverse slat 12 and fixed panel 13, the vertical plate 11 is in perpendicular
Straight setting, for the transverse slat 12 in being horizontally disposed with and being fixedly connected with the solid, the fixed panel 13 is fixed on the vertical plate
11 with the transverse slat 12 composed by frame body side.Frame body is formed by using vertical plate 11, transverse slat 12, then will fixed panel 13
It is fixed on frame body, the fixation kit 1 can be made to effectively reduce whole number of parts under the premise of proof strength, thus
The weight of whole device is reduced, and reduces difficulty of processing.
Again referring to Fig. 4, the End assemblies 3 include end vertical plate 31, end panel 32, elastic block piece 33 and multiple companies
Fishplate bar 34, the connecting plate 34 are distributed in vertical array and are horizontally disposed with respectively, and the end vertical plate 31 is separately connected the company
Fishplate bar 34, the end panel 32 are fixedly connected on the side of the end vertical plate 31 with the frame body of the connecting plate 34 composition,
The elastic block piece 33 is fixed on the edge of the end panel 32 to be covered in the gap of the end panel 32 and exterior wall.It is logical
It crosses and forms the End assemblies 3 using the end vertical plate 31, end panel 32 and connecting plate 34, whole device can be reduced
Weight, and reduce difficulty of processing.And the elastic block piece 33 can be to the end panel 32 and the wall in the containment
It is sealed between body, to prevent fragment from passing through between the end panel 32 and wall, effectively improves interception effect.
Fig. 5 and Fig. 6 is please referred to, the first spacing adjusting device 4 is equipped between the movable component 2 and the fixation kit 1.
In order to more easily be installed in the containment, during installation between 1 meeting of fixation kit and the wall of the containment
Certain installation gap is left, however these gaps can make fragment that can pass through, and influence the interception performance of blocking apparatus, therefore, lead to
It crosses and first spacing adjusting device 4 is set, the edge of the fixation kit 1 can be made as close as possible to the wall of the containment
Body improves interception effect to reduce installation gap as much as possible.First spacing adjusting device 4 can use screw rod spiral shell
The mode of cap assembly connection, by the way that screw rod 41 is set to the movable component 2, and is fixed on the fixation for the nut 42
Component 1, when the 41 threadably coupling nut 42 of screw rod, screw rod 41 just will drive the fixation kit 1 and translate, so as to
Realize the purpose for adjusting the spacing between fixation kit 1 and movable component 2.Between the movable component 2 and the End assemblies 3
Equipped with the second spacing adjusting device 5.Second spacing adjusting device 5 is identical as the structure of the first spacing adjusting device 4.Together
Reason can make the edge of the End assemblies 3 as close as possible to the containment by the way that second spacing adjusting device 5 is arranged
Wall, thus as much as possible reduce installation gap, improve interception effect.
Containment recycling blocking apparatus 100 of the present invention can be before melt pit strainer filtering to the recirculated cooling water in containment
It is filtered, to be intercepted in advance to a large amount of fragments after generation loss of-coolant accident (LOCA), the fragment for effectively mitigating melt pit strainer is negative
It carries, reduces the pressure drop of melt pit strainer, improve melt pit strainer design capacity, guarantee emergence core stacking cool system and safety in containment
The normal operation of shell heat-extraction system improves the safety of containment.In addition, by by the movable component 2, fixation kit 1 and
It holds component to carry out modularized design, not only mitigates the weight of blocking apparatus, and the difficulty of processing of blocking apparatus can be reduced, side
Civilian dress is torn open, and significantly enhances the adaptive capacity to environment for blocking and carrying and setting.
Referring to Fig. 7, illustrating the structure of the embodiment two of containment recycling blocking apparatus 200 of the present invention in figure.This
The containment recycling blocking apparatus 100 of embodiment includes that two fixation kits 1 ' and a movable component 2 ' two are described solid
Determine the both ends that component 1 ' is connected to the movable component 2 ' by spacing adjusting device respectively, the fixation kit 1 ' and activity group
The specific structure of part 2 ' is identical as embodiment one, is not repeated to describe herein.
Referring to Fig. 8, illustrating the structure of the embodiment three of containment recycling blocking apparatus 300 of the present invention in figure.This
The containment recycling blocking apparatus 300 of embodiment includes two fixation kits 1 ", is led between two fixation kits 2 "
Spacing adjusting device connection is crossed, the specific structure of the fixation kit 1 " is identical as embodiment one, is not repeated to describe herein.
The structure and installation of containment involved by containment recycling blocking apparatus of the present invention, melt pit and melt pit strainer
Position be it is well known to those of ordinary skill in the art, be no longer described in detail herein.
The above disclosure is only a preferred example of the present invention, cannot limit the right model of the present invention with this certainly
It encloses, therefore according to equivalent variations made by scope of the present invention patent, still falls within the range that the present invention is covered.
Claims (7)
1. a kind of containment recycles blocking apparatus, it is set in the melt pit main body of containment, the containment recycling intercepts
The height of device is less than the lowest water level in melt pit, it is characterised in that: the containment recycling blocking apparatus includes at least one
A fixation kit for being used to intercept fragment；The containment recycling blocking apparatus further includes movable component, the fixation kit
It is fixedly connected on the side of the movable component；The containment recycling blocking apparatus further includes End assemblies, the end
Component is fixedly connected on the other side of the movable component opposite with the fixation kit, and the End assemblies are close to described
Wall edge in containment；The End assemblies include end vertical plate, end panel, elastic block piece and multiple connecting plates, institute
Connecting plate is stated in vertical distribution and is horizontally disposed with respectively, the end vertical plate is separately connected the connecting plate, the end panel
Fixed adjunction is fixed on the end in the side of the end vertical plate and the frame body of connecting plate composition, the elastic block piece
The edge of panel is to be covered in the gap of the end panel and exterior wall.
2. containment as described in claim 1 recycles blocking apparatus, it is characterised in that: the movable component includes that can open
Or the movable plate closed, so as to pass through for personnel or equipment.
3. containment as claimed in claim 2 recycles blocking apparatus, it is characterised in that: the movable component, which is additionally provided with, makes institute
The automatic door closer that movable plate is automatically closed is stated, the automatic door closer carries out the movable plate when closing the movable plate
Damping buffering.
4. containment as claimed in claim 2 recycles blocking apparatus, it is characterised in that: the movable component further includes stand
And baffle, the centre of the stand is door, and the movable plate is articulated in the stand and closes the door when closed
Channel, the baffle are fixed on the stand and are set between the lower end and ground of the movable plate.
5. containment as described in claim 1 recycles blocking apparatus, it is characterised in that: the fixation kit include vertical plate,
Transverse slat and fixed panel, in being vertically arranged, the transverse slat is in horizontally disposed and is fixedly connected with the vertical plate vertical plate, described
Fixed panel is fixed on the side of the frame body of the vertical plate and transverse slat institute component.
6. containment as described in claim 1 recycles blocking apparatus, it is characterised in that: the movable component and the fixation
The first spacing adjusting device is equipped between component.
7. containment as described in claim 1 recycles blocking apparatus, it is characterised in that: the movable component and the end
The second spacing adjusting device is equipped between component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610388686.5A CN107464594B (en) | 2016-06-03 | 2016-06-03 | Containment recycles blocking apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610388686.5A CN107464594B (en) | 2016-06-03 | 2016-06-03 | Containment recycles blocking apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107464594A CN107464594A (en) | 2017-12-12 |
| CN107464594B true CN107464594B (en) | 2019-08-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610388686.5A Active CN107464594B (en) | 2016-06-03 | 2016-06-03 | Containment recycles blocking apparatus |
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| CN (1) | CN107464594B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201556427U (en) * | 2009-11-23 | 2010-08-18 | 中广核工程有限公司 | Nuclear power station safety shell pit and filter screen thereof |
| WO2010134288A1 (en) * | 2009-05-20 | 2010-11-25 | 三菱重工業株式会社 | Nuclear reactor containment structure |
| CN105169786A (en) * | 2015-09-10 | 2015-12-23 | 中科华核电技术研究院有限公司 | Recirculation filter of nuclear island containment |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9997264B2 (en) * | 2012-02-14 | 2018-06-12 | Control Components, Inc. | Enhanced nuclear sump strainer system |
-
2016
- 2016-06-03 CN CN201610388686.5A patent/CN107464594B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010134288A1 (en) * | 2009-05-20 | 2010-11-25 | 三菱重工業株式会社 | Nuclear reactor containment structure |
| CN201556427U (en) * | 2009-11-23 | 2010-08-18 | 中广核工程有限公司 | Nuclear power station safety shell pit and filter screen thereof |
| CN105169786A (en) * | 2015-09-10 | 2015-12-23 | 中科华核电技术研究院有限公司 | Recirculation filter of nuclear island containment |
Non-Patent Citations (2)
| Title |
|---|
| 安全壳地坑碎片传输过程研究与优化分析;唐辉 等;《核动力工程》;20111231;第32卷;全文 |
| 新型压水堆核电站安全壳地坑过滤器设计;姚振农 等;《给水排水》;20141231;第40卷(第1期);84 |
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| Publication number | Publication date |
|---|---|
| CN107464594A (en) | 2017-12-12 |
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