CN105957565B - Constrain pond and the containment with the constrain pond - Google Patents
Constrain pond and the containment with the constrain pond Download PDFInfo
- Publication number
- CN105957565B CN105957565B CN201610463510.1A CN201610463510A CN105957565B CN 105957565 B CN105957565 B CN 105957565B CN 201610463510 A CN201610463510 A CN 201610463510A CN 105957565 B CN105957565 B CN 105957565B
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- China
- Prior art keywords
- containment
- constrain pond
- pond
- constrain
- reactor pit
- 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.)
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- 238000005192 partition Methods 0.000 claims abstract description 29
- 239000011148 porous material Substances 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 26
- 239000007789 gas Substances 0.000 claims description 19
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 14
- 229910052757 nitrogen Inorganic materials 0.000 claims description 7
- 238000010926 purge Methods 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 6
- 238000000746 purification Methods 0.000 claims description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 5
- 239000001301 oxygen Substances 0.000 claims description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- 239000007788 liquid Substances 0.000 abstract description 7
- 238000007667 floating Methods 0.000 description 12
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000001257 hydrogen Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- 210000003127 knee Anatomy 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 238000006424 Flood reaction Methods 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C13/00—Pressure vessels; Containment vessels; Containment in general
- G21C13/02—Details
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C15/00—Cooling arrangements within the pressure vessel containing the core; Selection of specific coolants
- G21C15/18—Emergency cooling arrangements; Removing shut-down heat
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C9/00—Emergency protection arrangements structurally associated with the reactor, e.g. safety valves provided with pressure equalisation devices
- G21C9/004—Pressure suppression
- G21C9/012—Pressure suppression by thermal accumulation or by steam condensation, e.g. ice condensers
-
- 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)
- Structure Of Emergency Protection For Nuclear Reactors (AREA)
Abstract
The present invention discloses a kind of constrain pond, it is installed in the housing of containment and is annularly disposed around the reactor pit of the housing, the constrain pond includes hydrospace and headroom, several anti-shake partition plates are equipped in the hydrospace, the bottom of the anti-shake partition plate offers the intercommunicating pore for connecting its both sides.The present invention is constrain, and pond can prevent liquid level from rocking, simple in structure, easy to maintain.In addition, invention additionally discloses a kind of containments with the constrain pond.
Description
Technical field
The present invention relates to a kind of containments more particularly to a kind of with the constrain pond for preventing liquid level from rocking, and are used in combination
In the containment of marine floating nuclear power plant.
Background technology
Constrain pond is mounted in containment and is arranged in a ring around pressure vessel, can be divided into headroom and water is empty
Between, by exhaust passage and containment atmosphere, the high energy pipeline breaking in containment, steam and sky in containment
The mixture of gas inhibits the rise of containment pressure since pressure difference is cooled down by exhaust passage into constrain pond.
However, when nuclear power plant is placed on floating platform, the external conditions such as wave, wind, ocean current and floating platform
Displacement such as can cause nuclear power plant's run-off the straight, rise and fall, wave at the movements, and at this moment, the free surface in constrain pond may
Generate nonlinear strong sloshing phenomenon.When sloshing phenomenon occurs in constrain pond, constrain pool inner wall, which can be subject to shake, dissipates one's fortune
Raw different degrees of surge jeopardizes the structural intergrity in constrain pond, reduce constrain pond system reliability or
Person causes the forfeiture of constrain pond function.Therefore, constrain pond system can not effectively inhibit possible hair in boiling-water reactor technology
Raw sloshing phenomenon can not be directly applied on the platform under marine or moving condition.In addition, the peace that existing two-stage is constrain
Full shell technology is in a manner that two-stage is constrain, when high energy pipeline break occurs in containment, although safety can be effectively reduced
Pressure in shell, but which is complicated, is not suitable in the nuclear power plant applied to compact.
The content of the invention
It is an object of the invention to provide one kind for maritime floating platform or motion platform, prevent liquid level from rocking
Constrain pond.
It is a kind of for maritime floating platform or motion platform, safe and reliable peace another object of the present invention is to provide
Full shell.
To achieve these goals, constrain pond provided by the invention is installed in the housing of containment and circlewise sets
It is placed in around the reactor pit of the housing, the constrain pond includes hydrospace and headroom, being equipped in the hydrospace several
Anti-shake partition plate, the bottom of the anti-shake partition plate offer the intercommunicating pore for connecting its both sides.
Compared with prior art, it is of the invention by being equipped with several anti-shake partition plates in the hydrospace, and in the anti-shake
The bottom of partition plate offers the intercommunicating pore for connecting its both sides, so as to so that the constrain pond is divided into the son of multiple bottom connections
The larger constrain pond of blade diameter length ratio is divided into the smaller sub- pond of blade diameter length ratio by pond, makes the latter with liquid level caused by external world's movement
Fluctuating range is with respect to the former smaller, and therefore, when high energy pipeline break occurs in containment, the present invention can effectively reduce peace
Pressure in full shell, meanwhile, in the external conditions such as wave and the displacement of floating platform, and it can effectively inhibit liquid
The sloshing phenomenon in face effectively raises the reliability in constrain pond, enhances the security of nuclear power plant under moving condition；And
And the structure in this constrain pond is simple, it is easy to maintain.
It is preferred that the anti-shake partition plate is located under the water level of the hydrospace.
It is preferred that anti-shake partition plate structure, and in a ring concentric with the constrain pond.
It is preferred that the anti-shake partition plate is in vertical plate-like structure, and is set along the diametric(al) in the constrain pond, it will
The constrain pond is divided into several sub- ponds.
A kind of containment including housing, is equipped with the gas compartment and reactor pit in the housing, the pressure vessel of nuclear power plant houses
In in the reactor pit, the containment further includes the above-mentioned constrain pond, and the constrain pond is located at the gas compartment
Lower section.
It is preferred that the air admission valve for connecting the two is equipped between the gas compartment and the constrain pond.When described
When the headroom in constrain pond and the pressure difference of the gas compartment in the containment are more than the Opening pressure of the air admission valve,
The air admission valve is opened, it is ensured that the wall body structure in the constrain pond will not be damaged because both sides pressure difference is excessive.
It is preferred that the bottom in the constrain pond be equipped with normally closed reactor pit drain valve, the reactor pit drain valve respectively with institute
State the reactor pit connection of hydrospace and the containment.Operator can open the reactor pit according to accident process and actual needs and arrange
Put valve, the water in the constrain pond is directly discharged to flood pressure vessel in reactor pit.
It is preferred that the constrain pond is additionally provided with the purification cooling system for ensureing water temperature and water quality in the constrain pond
System.In normal operation, temperature and water quality in the constrain pond of institute's pillow mat can be maintained by the purification cooling system, so as to protect
Demonstrate,prove availability of the constrain pond when accident occurs.
It is preferred that the nitrogen purging system for the atmospheric oxygen content for controlling the containment is additionally provided in the containment
System.By the nitrogen purging system, the oxygen content in the containment is maintained into low concentration, so as to reduce accident hair
The possibility of the combustion of hydrogen discharged when raw from pressure vessel improves the safety and reliability of nuclear power plant.
Description of the drawings
Fig. 1 is structure chart of the constrain pond of the embodiment of the present invention one in containment.
Fig. 2 is top view of the constrain pond of the embodiment of the present invention one in containment.
Fig. 3 is top view of the constrain pond of the embodiment of the present invention two in containment.
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 somebody with somebody
Attached drawing is closed to be explained in detail.
As shown in Figure 1 and Figure 2, the structure of the embodiment of the present invention one is illustrated in figure, in the embodiment of the present invention one, the peace
Full shell 200 includes housing 201 and constrain pond 100, the gas compartment 202 and reactor pit 203, the shell being equipped in the housing 201
The top of body 201 is the gas compartment 202, and the constrain pond 100 is installed in the housing 201, and the constrain pond 100 is set
It is placed in the lower section of the gas compartment 202, and the constrain pond 100 is annularly disposed the reactor pit 203 in the housing 201
Around, the pressure vessel 300 of nuclear power plant is placed in the reactor pit 203, and the constrain pond 100 includes hydrospace 1 and gas is empty
Between 2, be equipped with an anti-shake partition plate 3 in the hydrospace 1, the anti-shake partition plate 3 structure in a ring, and with the constrain pond 100
With one heart；Furthermore it is possible to according to the requirement of design, increase the quantity of the anti-shake partition plate 3.The bottom of the anti-shake partition plate 3 opens up
There is the intercommunicating pore 31 for connecting its both sides, the present embodiment has opened up 8 intercommunicating pores 31 altogether；The intercommunicating pore 31 can ensure described anti-
It is consistent to shake the height of water level of 3 both sides of partition plate, so as to ensure the constrain performance in the constrain pond 100.The anti-shake partition plate 3 is located at
Under the water level of the hydrospace 1, the peak for stating anti-shake partition plate 3 is slightly less than the height of water level.It is described constrain
Pond 100 be equipped with knee wall 4, the knee wall 4 be equipped with air admission valve 5, the air admission valve 5 respectively with the gas
The gas compartment of space 2 and the containment 200 is connected.When the headroom 2 in the constrain pond 100 and the housing 201
When the Negative Pressure Difference of the interior gas compartment 202 reaches the Opening pressure of the air admission valve 5, the air admission valve 5 is opened, this
The structural intergrity in the constrain pond 100 can be effectively ensured in sample.The bottom in the constrain pond 100 is equipped with reactor pit drain valve 6,
Reactor pit 203 of the reactor pit drain valve 6 respectively with the hydrospace 1 and the housing 201 connects；During normal operation, the heap
Drain valve 6 is cheated to be normally closed, to isolate the reactor pit 203 and the constrain pond 100, is ensured in the constrain pond 100
Water level is higher than pressure vessel 300, opens the reactor pit drain valve 6 if necessary, and the water in the constrain pond 100 overflows to institute
It states in reactor pit 201, realizes flooding to pressure vessel 300.It is additionally provided in the containment 200 and ensures the constrain pond 100
The purification cooling system (not shown) of interior water temperature and water quality.By described in the purification cooling system guarantee during normal operation
Water temperature and water quality requirement in constrain pond 100, so as to ensure availability of the constrain pond 100 when accident occurs.Institute
State the nitrogen purging system (not shown) that the atmospheric oxygen content for controlling the containment 200 is additionally provided in containment 200.
The nitrogen purging system can prevent that combustion of hydrogen occurs in containment 200；By the nitrogen purging system, by described in
Oxygen content in containment 200 maintains low concentration, so as to reduce the hydrogen discharged when accident occurs from pressure vessel 300
The possibility of gas burning improves the safety and reliability of nuclear power plant.The purification cooling system and the nitrogen purging system
System is a kind of prior art, and concrete structure is well known to those skilled in the art, and is not described in detail herein.
Summary, under normal operation, the constrain pond 100 is in stand-by state, is not having for nuclear power plant
When external condition acts on, the water surface in constrain pond 100 is relatively steady；When floating platform as the external conditions such as wave are sent out
It is raw to rise and fall, wave when movements or in the case of floating platform displacement, under the action of the anti-shake partition plate 3, the suppression
Violent sloshing phenomenon will not occur for the water surface in pressure pond 100, and the water in the constrain pond 100 is to the percussive pressure of its inner wall
Power is less than the bursting stress scope of inner wall.After high energy pipeline break accident in containment 200 occurs, the containment 200 is pressed
Power raises, under the differential pressure action between the gas compartment 202 of the housing 201 and 100 dry-well of constrain pond, the gas
Steam in body space 202 carries out into the constrain pond 100 and with the water in wet-well contacting directly condensation.When needs are to institute
When stating the constrain progress of pond 100 water-filling, the intercommunicating pore 31 of the bottom of the anti-shake partition plate 3 can ensure that the anti-shake partition plate 3 is inside and outside
Water level it is identical；When an accident occurs, after reactor pit drain valve 6 is opened, water floods pressure vessel 300 to the discharge of reactor pit 201.
Compared with prior art, the present invention prevents by being equipped with several anti-shake partition plates 3 in the hydrospace 1, and described
The bottom for shaking partition plate 3 offers the intercommunicating pore 31 for connecting its both sides, so as to so that the constrain pond 100 is divided into multiple bottoms
The sub- pond of connection, is divided into the smaller sub- pond of blade diameter length ratio by the larger constrain pond 100 of blade diameter length ratio, and the latter is made to be moved with the external world
Caused by liquid fluctuating amplitude with respect to the former smaller, therefore, when high energy pipeline break occurs in containment 200, present invention suppression
Pressure pond 100 can effectively reduce pressure in containment 200, meanwhile, in oneself of the external conditions such as wave and floating platform
It under body motion conditions, and can effectively inhibit the sloshing phenomenon of liquid level, effectively raise the reliability in constrain pond 100, increase
The security of nuclear power plant under strong moving condition；Also, the structure in this constrain pond 100 is simple, easy to maintain.And entirely pacify
Full shell 200, so as to be used for maritime floating platform or motion platform, makes very due to being provided with the constrain pond 100
Securely and reliably.
As shown in figure 3, the structure of the embodiment of the present invention two is illustrated in figure, the constrain pond 400 of the embodiment of the present invention two
Most of structure is identical with embodiment one, and difference is setting side of the anti-shake partition plate 7 in the constrain pond 400
Formula.Anti-shake partition plate 7 described in the present embodiment is in vertical plate-like structure, and one shares 8 pieces, and each piece along the constrain pond 400
Diametric(al) is equably set, and the constrain pond 400 is divided into 8 sub- ponds 401.Each piece of anti-shake partition plate 7
Bottom offers 2 intercommunicating pores 71, ensures that the height of water level between two neighboring sub- pond 401 is consistent.When floating platform with
The external conditions such as wave occur to rise and fall, wave when movements or in the case of floating platform displacement, the anti-shake partition plate 7
The sloshing phenomenon in the constrain pond 400 can effectively be inhibited.In addition, also can according to design requirement, increase and decrease vertical anti-shake every
The quantity of plate.
The above disclosed right model for being only the preferred embodiments of the present invention, the present invention cannot being limited with this certainly
It encloses, therefore the equivalent variations made according to scope of the present invention patent, still fall within the scope that the present invention is covered.
Claims (6)
1. a kind of constrain pond is installed in the housing of containment and is annularly disposed around the reactor pit of the housing, institute
Stating constrain pond includes hydrospace and headroom, it is characterised in that：Several anti-shake partition plates, the anti-shake are equipped in the hydrospace
The bottom of partition plate offers the intercommunicating pore for connecting its both sides；The anti-shake partition plate is located under the water level of the hydrospace；It is described
Anti-shake partition plate is in vertical plate-like structure, and is set along the diametric(al) in the constrain pond, if the constrain pond is divided into
Dry sub- pond.
2. a kind of containment including housing, is equipped with the gas compartment and reactor pit in the housing, the pressure vessel of nuclear power plant is placed in
In the reactor pit, it is characterised in that：The containment further includes the constrain pond of claim 1, the constrain pond position
In the lower section of the gas compartment.
3. containment as claimed in claim 2, it is characterised in that：The company of being equipped between the gas compartment and the constrain pond
Both logical air admission valve.
4. containment as claimed in claim 2, it is characterised in that：The bottom in the constrain pond is equipped with normally closed reactor pit and discharges
Valve, reactor pit of the reactor pit drain valve respectively with the hydrospace and the containment connect.
5. containment as claimed in claim 2, it is characterised in that：It is additionally provided with and ensures in the constrain pond in the containment
Water temperature and water quality purification cooling system.
6. containment as claimed in claim 2, it is characterised in that：The big of the control containment is additionally provided in the containment
The nitrogen purging system of oxygen content in gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610463510.1A CN105957565B (en) | 2016-06-23 | 2016-06-23 | Constrain pond and the containment with the constrain pond |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610463510.1A CN105957565B (en) | 2016-06-23 | 2016-06-23 | Constrain pond and the containment with the constrain pond |
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| Publication Number | Publication Date |
|---|---|
| CN105957565A CN105957565A (en) | 2016-09-21 |
| CN105957565B true CN105957565B (en) | 2018-05-29 |
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| CN201610463510.1A Active CN105957565B (en) | 2016-06-23 | 2016-06-23 | Constrain pond and the containment with the constrain pond |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106653100B (en) * | 2016-10-17 | 2018-05-22 | 中广核研究院有限公司 | Nuclear power floating platform and the pressure stabilizer that sloshing phenomenon can be inhibited |
| CN106782699B (en) * | 2016-11-29 | 2019-02-01 | 中广核研究院有限公司 | The novel Core makeup tank for rocking influence can be mitigated |
| CN106782680B (en) * | 2016-11-29 | 2018-10-16 | 中广核研究院有限公司 | Inhibit the new structure of sloshing phenomenon in voltage-stablizer |
| CN106782695B (en) * | 2016-11-29 | 2018-10-16 | 中广核研究院有限公司 | Inhibit the pressure stabilizer rocked |
| CN107464590A (en) * | 2017-08-23 | 2017-12-12 | 中国船舶重工集团公司第七〇九研究所 | Marine PWR Passive residual heat removal system |
| CN108010591B (en) * | 2017-12-18 | 2024-01-19 | 中广核研究院有限公司 | Multifunctional pressure vessel pit stacking structure and reactor containment structure |
| CN112071451B (en) * | 2020-09-15 | 2022-11-01 | 哈尔滨工程大学 | Multifunctional double-layer concrete containment system of pressurized water reactor |
| CN116246804B (en) * | 2023-05-11 | 2023-07-07 | 中国电力工程顾问集团有限公司 | Safety system of pressure restraining water tank and water floating nuclear power station |
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| CN105957565A (en) | 2016-09-21 |
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