CN105957565A - Suppression pool and safety shell with same - Google Patents
Suppression pool and safety shell with same Download PDFInfo
- Publication number
- CN105957565A CN105957565A CN201610463510.1A CN201610463510A CN105957565A CN 105957565 A CN105957565 A CN 105957565A CN 201610463510 A CN201610463510 A CN 201610463510A CN 105957565 A CN105957565 A CN 105957565A
- Authority
- CN
- China
- Prior art keywords
- containment
- pond
- constrain pond
- constrain
- dividing plate
- 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.)
- Granted
Links
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
Abstract
The invention discloses a suppression pool. The suppression pool is mounted in a shell body of a safety shell and is annularly arranged around a reactor pit of the shell body. The suppression pool comprises a water space and an air space, wherein a plurality of anti-shaking partition boards are arranged in the water space; and communication holes for communicating two sides of the anti-shaking partition boards are formed in the bottoms of the anti-shaking partition boards. According to the suppression pool, the shaking of the liquid level can be prevented. The suppression pool is simple in structure and convenient to maintain. The invention further discloses the safety shell with the suppression pool.
Description
Technical field
The present invention relates to a kind of containment, particularly relate to a kind of with the constrain pond preventing liquid level from rocking,
And for the containment of marine floating nuclear power plant.
Background technology
Constrain pond is arranged ringwise around pressure vessel in being mounted in containment, and it can be divided into headroom
And hydrospace, by exhaust passage and containment atmosphere, in containment in the case of high energy pipeline breaking,
In containment, the mixture of steam and air is cooled down owing to pressure reduction enters constrain pond by exhaust passage,
And then the rising of suppression containment pressure.
But, when nuclear power plant is placed on floating platform, the external condition such as wave, wind, ocean current and floating
The displacement of moving platform can cause nuclear power plant's run-off the straight, rise and fall, the motion, at this moment, constrain water such as waves
Free surface in pond may produce nonlinear strong sloshing phenomenon.Existing when rocking in constrain pond
As time, constrain pool inner wall can be jeopardized constrain pond by rocking the surge in various degree of generation
Structural intergrity, reduce the reliability of constrain pond system, or cause the forfeiture of constrain pond function.
Therefore, in boiling-water reactor technology, constrain pond system cannot effectively suppress contingent sloshing phenomenon, nothing
Method directly applies on the platform under sea or moving condition.It addition, the containment that existing two-stage is constrain
Technology uses the mode that two-stage is constrain, when there is high energy pipeline break in containment, although, can be effective
Reduce pressure in containment, but which structure is complicated, is not suitable for being applied in the nuclear power plant of compact.
Summary of the invention
It is an object of the invention to provide a kind of for maritime floating platform or motion platform, prevent liquid level from sending out
The raw constrain pond rocked.
Another object of the present invention is to provide a kind of for maritime floating platform or motion platform, safety can
The containment leaned on.
To achieve these goals, the constrain pond that the present invention provides, in being installed on the housing of containment and ring
Being arranged to shape around the reactor pit of described housing, described constrain pond includes hydrospace and headroom, described
Being provided with some anti-shake dividing plates in hydrospace, the bottom of described anti-shake dividing plate offers the intercommunicating pore connecting its both sides.
Compared with prior art, the present invention passes through to be provided with some anti-shake dividing plates in described hydrospace, and in institute
The bottom stating anti-shake dividing plate offers the intercommunicating pore connecting its both sides, such that it is able to make described constrain pond be divided into
The sub-pond of multiple bottoms connection, is divided into, by constrain pond bigger for blade diameter length ratio, the sub-pond that blade diameter length ratio is less,
The liquid fluctuating amplitude making the latter cause with external world's motion is less relative to the former, therefore, when occurring in containment
During high energy pipeline break, the present invention can effectively reduce pressure in containment, meanwhile, outside at wave etc.
In the case of the displacement of condition and floating platform, can effectively suppress again the sloshing phenomenon of liquid level, effectively
The reliability that improve constrain pond, enhance the safety of nuclear power plant under moving condition；Further, this
The simple in construction in constrain pond, easy to maintenance.
It is preferred that described anti-shake dividing plate is positioned under the water level of described hydrospace.
It is preferred that described anti-shake dividing plate structure ringwise, and concentric with described constrain pond.
It is preferred that described anti-shake dividing plate is vertical plate-like structure, and set along the diametric(al) in described constrain pond
Put, described constrain pond to be divided into some sub-ponds.
A kind of containment, including housing, is provided with the gas compartment and reactor pit, the pressure of nuclear power plant in described housing
Container is placed in described reactor pit, and described containment also includes above-mentioned described constrain pond, described constrain water
Pond is positioned at the lower section of the described gas compartment.
It is preferred that be communicated with both air admission valves between the described gas compartment and described constrain pond.
When the headroom in described constrain pond exceedes described vacuum breaking with the pressure reduction of the gas compartment in described containment
During the unlatching pressure of valve, described air admission valve is opened, it is ensured that the wall body structure in described constrain pond is not
Can damage because both sides pressure reduction is excessive.
It is preferred that the bottom in described constrain pond is provided with normally closed reactor pit drain valve, described reactor pit drain valve divides
Do not connect with the reactor pit of described hydrospace and described containment.Operator can be according to accident process and actual need
Opening described reactor pit drain valve, the water in described constrain pond is directly discharged in reactor pit flood pressure vessel.
It is preferred that the purification that described constrain pond is additionally provided with the water temperature in the described constrain pond of guarantee and water quality is cold
But system.When properly functioning, the temperature in the constrain pond of institute's pillow mat can be maintained by described purification cooling system
Degree and water quality, thus ensure the described constrain pond availability when accident occurs.
It is preferred that the nitrogen being additionally provided with the atmospheric oxygen content controlling described containment in described containment is lazy
Change system.By described nitrogen purging system, the oxygen content in described containment is maintained low concentration,
Thus the probability of the combustion of hydrogen discharged from pressure vessel during the generation of reduction accident, improve nuclear power plant
Safety and reliability.
Accompanying drawing explanation
Fig. 1 is the constrain pond of the embodiment of the present invention one structure chart in containment.
Fig. 2 is the constrain pond of the embodiment of the present invention one top view in containment.
Fig. 3 is the constrain pond of the embodiment of the present invention two top view in containment.
Detailed description of the invention
By describing the technology contents of the present invention, structural feature, the effect that realized in detail, below in conjunction with enforcement
Mode also coordinates accompanying drawing to be explained in detail.
As shown in Figure 1 and Figure 2, figure illustrates the structure of the embodiment of the present invention one, in the embodiment of the present invention one,
Described containment 200 includes housing 201 and constrain pond 100, being provided with the gas compartment in described housing 201
202 and reactor pit 203, described housing 201 be arranged above the gas compartment 202, described constrain pond 100 is installed
In described housing 201, described constrain pond 100 is arranged at the lower section of the described gas compartment 202, and institute
State constrain pond 100 be annularly disposed in described housing 201 reactor pit 203 around, the pressure of nuclear power plant
Container 300 is placed in described reactor pit 203, and described constrain pond 100 includes hydrospace 1 and headroom 2,
An anti-shake dividing plate 3 it is provided with in described hydrospace 1, described anti-shake dividing plate 3 structure ringwise, and constrain with described
Pond 100 is concentric；Furthermore it is possible to according to the requirement of design, increase the quantity of described anti-shake dividing plate 3.Institute
The bottom stating anti-shake dividing plate 3 offers the intercommunicating pore 31 connecting its both sides, and the present embodiment has offered altogether 8
Intercommunicating pore 31；Described intercommunicating pore 31 can ensure that the height of water level of described anti-shake dividing plate 3 both sides is consistent, thus protects
Demonstrate,prove the constrain performance in described constrain pond 100.Described anti-shake dividing plate 3 be positioned at described hydrospace 1 water level it
Under, described in state the peak of anti-shake dividing plate 3 and be slightly less than described height of water level.Described constrain pond 100
Being provided with knee wall 4, described knee wall 4 is provided with air admission valve 5, described air admission valve 5 respectively with
The gas compartment of described headroom 2 and described containment 200 is connected.Gas when described constrain pond 100
Space 2 reaches opening of described air admission valve 5 with the Negative Pressure Difference of the gas compartment 202 in described housing 201
When opening pressure, described air admission valve 5 is opened, and the structure in described constrain pond 100 so can be effectively ensured
Integrity.The bottom in described constrain pond 100 is provided with reactor pit drain valve 6, described reactor pit drain valve 6 respectively with
The reactor pit 203 of described hydrospace 1 and described housing 201 connects；Time properly functioning, described reactor pit drain valve 6
For normally closed, to isolate described reactor pit 203 and described constrain pond 100, it is ensured that in described constrain pond 100
Water level higher than pressure vessel 300, open described reactor pit drain valve 6, described constrain pond 100 when necessary
Interior water overflows in described reactor pit 201, it is achieved to flooding of pressure vessel 300.Described containment 200
Inside it is additionally provided with the water temperature in the described constrain pond 100 of guarantee and the purification cooling system (not shown) of water quality.
The water temperature in described constrain pond 100 and water quality requirement is ensured by described purification cooling system time properly functioning,
Thus ensure the described constrain pond 100 availability when accident occurs.It is additionally provided with in described containment 200
Control the nitrogen purging system (not shown) of the atmospheric oxygen content of described containment 200.Described nitrogen
Inerting system is possible to prevent in containment 200 combustion of hydrogen；By described nitrogen purging system, will
Oxygen content in described containment 200 maintains low concentration, thus holds from pressure when reduction accident occurs
In device 300, the probability of the combustion of hydrogen of release, improves the safety and reliability of nuclear power plant.Described only
Changing cooling system and described nitrogen purging system is a kind of prior art, its concrete structure is people in the art
Member is known, is not described in detail at this.
Summary, under normal operation, described constrain pond 100 is in resting state in nuclear power plant,
When not having external condition effect, the water surface in constrain pond 100 is the most steady；When floating platform with
The external conditions such as wave rise and fall, when the motion such as waving, or in the case of floating platform displacement,
Under the effect of described anti-shake dividing plate 3, the water surface in described constrain pond 100 will not occur violent rocking
Phenomenon, the water in described constrain pond 100 is less than the bursting stress scope of inwall to the surge of its inwall.
When occurring in containment 200 after high energy pipeline break accident, described containment 200 pressure raises, described
Under differential pressure action between the gas compartment 202 and described constrain pond 100 dry-well of housing 201, described gas
Steam in body space 202 enters described constrain pond 100 and carries out direct condensation by contact with the water in wet-well.
When needs carry out water-filling to described constrain pond 100, the intercommunicating pore 31 of the bottom of described anti-shake dividing plate 3 can
Ensure that the inside and outside water level of described anti-shake dividing plate 3 is identical；When an accident occurs, after reactor pit drain valve 6 is opened,
Water floods pressure vessel 300 to reactor pit 201 discharge.
Compared with prior art, the present invention by being provided with some anti-shake dividing plates 3 in described hydrospace 1, and
The bottom of described anti-shake dividing plate 3 offers the intercommunicating pore 31 connecting its both sides, such that it is able to make described constrain water
Pond 100 is divided into the sub-pond of multiple bottom connection, and constrain pond 100 bigger for blade diameter length ratio is divided into blade diameter length ratio
Less sub-pond, the liquid fluctuating amplitude making the latter cause with external world's motion is less relative to the former, therefore,
When there is high energy pipeline break in containment 200, the constrain pond of the present invention 100 can effectively reduce peace
Pressure in full shell 200, meanwhile, in the case of the displacement of the external conditions such as wave and floating platform,
Can effectively suppress again the sloshing phenomenon of liquid level, effectively raise the reliability in constrain pond 100, strengthen
The safety of nuclear power plant under moving condition；Further, the simple in construction in this constrain pond 100, maintenance side
Just.And whole containment 200 is owing to being provided with described constrain pond 100, such that it is able to it is flat to float for sea
On platform or motion platform, make to be extremely secure.
As it is shown on figure 3, figure illustrates the structure of the embodiment of the present invention two, the embodiment of the present invention two constrain
Pond 400 major part structure is identical with embodiment one, and difference is that described anti-shake dividing plate 7 is described constrain
Set-up mode in pond 400.Described in the present embodiment, anti-shake dividing plate 7 is in vertical plate-like structure, and one has 8
Block, each piece is all arranged equably along the diametric(al) in described constrain pond 400, with by described constrain pond
400 are divided into 8 sub-ponds 401.The bottom of each piece of described anti-shake dividing plate 7 offers 2 intercommunicating pores 71,
Ensure that the height of water level between adjacent two sub-ponds 401 is consistent.When floating platform is along with outer strip such as waves
During the motions such as part rises and falls, wave, or in the case of floating platform displacement, described anti-shake dividing plate 7
Can effectively suppress the sloshing phenomenon in described constrain pond 400.It addition, also dependent on design requirement, increase
Subtract the quantity of vertical anti-shake dividing plate.
Above disclosed be only the present invention preferred embodiments, certainly can not with this limit the present invention it
Interest field, the equivalent variations therefore made according to scope of the present invention patent, still fall within the present invention and contained
Scope.
Claims (9)
1. a constrain pond, in being installed on the housing of containment and be annularly disposed week of reactor pit in described housing
Enclosing, described constrain pond includes hydrospace and headroom, it is characterised in that: it is provided with some in described hydrospace
Anti-shake dividing plate, the bottom of described anti-shake dividing plate offers the intercommunicating pore connecting its both sides.
Constrain pond the most as claimed in claim 1, it is characterised in that: described anti-shake dividing plate is positioned at described hydrospace
Under water level.
Constrain pond the most as claimed in claim 1, it is characterised in that: described anti-shake dividing plate structure ringwise, and with
Described constrain pond is concentric.
Constrain pond the most as claimed in claim 1, it is characterised in that: described anti-shake dividing plate is vertical plate-like structure,
And along the diametric(al) setting in described constrain pond, described constrain pond to be divided into some sub-ponds.
5. a containment, including housing, is provided with the gas compartment and reactor pit, the pressure vessel of nuclear power plant in described housing
It is placed in described reactor pit, it is characterised in that: described containment also includes any one of Claims 1-4
Described constrain pond, described constrain pond is positioned at the lower section of the described gas compartment.
6. containment as claimed in claim 5, it is characterised in that: between the described gas compartment and described constrain pond
It is communicated with both air admission valves.
7. containment as claimed in claim 5, it is characterised in that: the bottom in described constrain pond is provided with normally closed heap
Hole drain valve, described reactor pit drain valve reactor pit with described hydrospace and described containment respectively connects.
8. containment as claimed in claim 5, it is characterised in that: it is additionally provided with guarantee in described containment described constrain
Water temperature in pond and the purification cooling system of water quality.
9. containment as claimed in claim 5, it is characterised in that: it is additionally provided with the described safety of control in described containment
The nitrogen purging system of the atmospheric oxygen content of shell.
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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105957565A true CN105957565A (en) | 2016-09-21 |
| CN105957565B CN105957565B (en) | 2018-05-29 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106653100A (en) * | 2016-10-17 | 2017-05-10 | 中广核研究院有限公司 | Nuclear power floating platform and novel voltage stabilizer capable of inhibiting sloshing phenomenon |
| CN106782695A (en) * | 2016-11-29 | 2017-05-31 | 中广核研究院有限公司 | The pressure stabilizer that suppression is rocked |
| CN106782680A (en) * | 2016-11-29 | 2017-05-31 | 中广核研究院有限公司 | Suppress the new structure of sloshing phenomenon in voltage-stablizer |
| CN106782699A (en) * | 2016-11-29 | 2017-05-31 | 中广核研究院有限公司 | The new Core makeup tank for rocking influence can be mitigated |
| 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 |
| CN108010591A (en) * | 2017-12-18 | 2018-05-08 | 中广核研究院有限公司 | A kind of multifunctional pressure container reactor pit structure and reactor safety shell structure |
| CN112071451A (en) * | 2020-09-15 | 2020-12-11 | 哈尔滨工程大学 | Pressurized water reactor multifunctional double-layer concrete containment system |
| CN116246804A (en) * | 2023-05-11 | 2023-06-09 | 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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| CN205789135U (en) * | 2016-06-23 | 2016-12-07 | 中广核研究院有限公司 | Constrain pond and there is the containment in this constrain pond |
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| CN104011487A (en) * | 2011-12-20 | 2014-08-27 | 科诺科菲利浦公司 | Liquefying natural gas in a motion environment |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106653100A (en) * | 2016-10-17 | 2017-05-10 | 中广核研究院有限公司 | Nuclear power floating platform and novel voltage stabilizer capable of inhibiting sloshing phenomenon |
| 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 |
| CN106782695A (en) * | 2016-11-29 | 2017-05-31 | 中广核研究院有限公司 | The pressure stabilizer that suppression is rocked |
| CN106782680A (en) * | 2016-11-29 | 2017-05-31 | 中广核研究院有限公司 | Suppress the new structure of sloshing phenomenon in voltage-stablizer |
| CN106782699A (en) * | 2016-11-29 | 2017-05-31 | 中广核研究院有限公司 | The new Core makeup tank for rocking influence can be mitigated |
| 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 |
| 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 |
| CN108010591A (en) * | 2017-12-18 | 2018-05-08 | 中广核研究院有限公司 | A kind of multifunctional pressure container reactor pit structure and reactor safety shell structure |
| 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 |
| CN112071451A (en) * | 2020-09-15 | 2020-12-11 | 哈尔滨工程大学 | Pressurized water reactor multifunctional double-layer concrete containment system |
| CN116246804A (en) * | 2023-05-11 | 2023-06-09 | 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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