CN207663806U - A kind of passive double containment of band segmentation self-contained water tank - Google Patents
A kind of passive double containment of band segmentation self-contained water tank Download PDFInfo
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- CN207663806U CN207663806U CN201721071389.4U CN201721071389U CN207663806U CN 207663806 U CN207663806 U CN 207663806U CN 201721071389 U CN201721071389 U CN 201721071389U CN 207663806 U CN207663806 U CN 207663806U
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- water tank
- containment
- cooling water
- passive double
- band segmentation
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 126
- 230000011218 segmentation Effects 0.000 title claims abstract description 30
- 239000000498 cooling water Substances 0.000 claims abstract description 55
- 239000002184 metal Substances 0.000 claims abstract description 46
- 238000001816 cooling Methods 0.000 claims description 17
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 238000005192 partition Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 239000013505 freshwater Substances 0.000 claims description 2
- 230000005855 radiation Effects 0.000 claims description 2
- 239000000941 radioactive substance Substances 0.000 claims 1
- 238000001704 evaporation Methods 0.000 description 8
- 230000008020 evaporation Effects 0.000 description 8
- 230000003020 moisturizing effect Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 239000004567 concrete Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000011513 prestressed concrete Substances 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 239000002918 waste heat Substances 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 230000004083 survival effect Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000126 substance 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
Landscapes
- Structure Of Emergency Protection For Nuclear Reactors (AREA)
Abstract
The utility model provides a kind of passive double containment of band segmentation self-contained water tank, it includes metal containment, lateral cooling water, containment internal structure, outer panel, bottom plate, top plate, top cooling water tank, top cooling water, lower air inlet, upper discharge hole, lateral water tank, air baffle and assignment of traffic disk.The passive double containment of band segmentation self-contained water tank provided by the utility model has good Residual heat removal performance using the principle of heat loss through convection using the intrinsic physical characteristic of water and air, the support of the external energy is not necessarily under accident conditions.
Description
Technical field
The present invention relates to a kind of designs of the safety-related structure type of nuclear power field, and in particular to a kind of band segmentation is independent
The passive double containment of water tank.
Background technology
Containment/shielding workshop is the most important structures of nuclear power plant, and major function is in imaginary design basis thing
After therefore, internal pressure is born, contains airborne radioactivity releaser, and be that reactor core and coolant system carry during normal operation
For barrier.Meanwhile containment/shielding workshop is also the heating power boundary of reactor, has the heat that will be generated after design basis accident
Measure the function of being discharged into air, prevent superpressure.
The type of more popular containment/shielding workshop includes mainly the prestressed concrete safety with Leak-tight liner at present
Shell, the double containment being made of prestressed concrete containment vessel and normal concrete containment and by metal containment and reinforcing bar/
The double containment that prestressed reinforced concrete shielding workshop collectively constitutes.One phase of Qinshan in China is using autonomous Design
Prestressed concrete containment vessel with Leak-tight liner.EPR nuclear power plants using French technology and the VVER cores using Russian technology
Power plant uses the double containment being made of prestressed concrete containment vessel and normal concrete containment.And it is currently big
The AP1000 nuclear power plants of batch construction are then using the double-deck peace collectively constituted by metal containment and armored concrete shielding workshop
Full shell, the containment use passive technology, have higher reliability.
The passive cooling of containment of the AP1000 nuclear power plants under basis accident is passive at the top of workshop by shielding
Containment cooling water tank institute water storage sprays to carry out.Compared to previous containment/shielding workshop, in thermodynamic property,
This is a significant progress.Why the crisis of Fukushima, Japan nuclear power deteriorates, and is because of the active cooling mistake under extreme operating condition
Effect.But there is also certain problems for AP1000 nuclear power plants：Such huge water tank is placed in the top of shielding workshop, it is clear that right
The antidetonation of structure is unfavorable.And can spray system itself smoothly open in the state of accident, will also largely effect on system
Reliability.
Chinese invention patent 03143620.X proposes a kind of novel boiling water reactor containment, and the patent is to containment
Internal structure is adjusted, and has certain novelty.But significant improvement is not made to containment itself, in Residual heat removal and
In terms of preventing superpressure, there is not marked improvement.
Invention content
In view of the deficiencies of the prior art, the present invention proposes the passive double containments that a kind of band is segmented self-contained water tank.
Passive double containment with segmentation self-contained water tank includes metal containment, lateral cooling water, containment internal junction
Structure, outer panel, bottom plate, top plate, top cooling water tank, top cooling water, lower air inlet, upper discharge hole, lateral water tank are empty
Conductance flowing plate and assignment of traffic disk；Wherein, the bottom plate is seated on ground；The metal containment is seated on bottom plate, the two
It is connected by metal containment bottom (head)；The containment internal structure is located in metal containment；The outer panel is seated bottom plate
On, the two is connected by joint bar；The top cooling water tank is seated on top plate；The top cooling water is stored in top cooling
In water tank；The lateral cooling water is stored in the lateral water tank of metal containment；The lower air inlet and upper discharge hole are located at
On outer panel.
Preferably, the metal containment is the cylindrical drum that both ends carry elliposoidal end socket, by metal containment main body, underseal
Head, cover head composition, all part materials are special boiler steel.
Preferably, the metal containment main body is metal containment cylinder, while as the inner side edge of water tank.
Preferably, the cover head is by bottom (head) partition board, water storage board, cover head top plate composition.
Preferably, the lateral cooling water is the cooling fresh water injected in water tank.
Preferably, the containment internal structure refers to various structures and the equipment being seated in metal containment.
Preferably, the outer panel is that inside carries Leak-tight liner, is applied with ring orientation prestress, has compared with strong structure carrying energy
The cylinder-like structure of power and radiation shielding capability.
Preferably, basis carrying superstructure of the bottom plate as double containment, and prevent from radiating under accident conditions
Property substance to underground spread.
Preferably, the top plate is as the shielding on the upside of metal containment, and supports top cooling water tank.
Preferably, the top cooling water tank is supported on top plate, for storing top cooling water.
Preferably, the top cooling water is located in the cooling water tank of top, for the passive cooling under accident conditions.
Preferably, the lateral water tank, the babinet of the storage lateral cooling water circumferentially disposed along containment main body.
Preferably, the lower air inlet, for importing cold air under accident conditions.
Preferably, the upper discharge hole, for hot-air to be discharged under accident conditions.
Preferably, the air baffle, the flow direction under accident conditions for guiding air.
Preferably, the assignment of traffic disk, for distributing top cooling water under accident conditions.
Compared with prior art, the invention has the advantages that：
1, the passive double containment of band segmentation self-contained water tank provided by the invention, utilizes the intrinsic physics of water and air
Characteristic has good Residual heat removal performance using the principle of heat loss through convection, and the branch of the external energy is not necessarily under accident conditions
It holds.
2, the passive double containment of band segmentation self-contained water tank provided by the invention, the passive cooling phase with AP1000
Than increasing lateral water tank and carrying out supplement heat rejecter, substantially increase the cooling performance of containment under accident conditions, improve accident work
Nuclear power station survival ability under condition.
3, the passive double containment of band segmentation self-contained water tank provided by the invention, can greatly improve the knot of containment
Structure performance keeps the structure type of metal containment more reasonable, enables the larger raising of metal containment rigidity, improves metal containment
Anti-seismic performance.
4, the passive double containment of band segmentation self-contained water tank provided by the invention, compared to common containment/screen
Workshop is covered, Residual heat removal is carried out by ad hoc security system, and these security systems are that needs are power-actuated, in accident work
Under condition, there is very big problem in the reliability of security system itself, can be carried out by the intrinsic physical characteristic of the thermal convection current of water more than
Heat discharge, reliability higher.
5, band provided by the invention is segmented the passive double containment of self-contained water tank, and the containment compared to AP1000/
Shielding workshop carries out Residual heat removal by shielding the spray of the water stored by the passive containment cooling water tank at the top of workshop,
Using top cooling water tank and lateral water tank, reservoir storage bigger, even if cooling water tank valve in top can not be beaten under accident conditions
It opens, can also realize a degree of passive cooling by the evaporation of lateral cooling water.It also avoids simultaneously due to containment
The flatness of body surface and the various uncertain and even phenomenons of inhomogeneous cooling supported to water currents.
6, the passive double containment of band provided by the invention segmentation self-contained water tank, the radial direction of water tank and it is vertical be divided into it is more
A water tank independent operating reduces the influence that individual water tanks fail to cooling effect.
7, the passive double containment of band provided by the invention segmentation self-contained water tank, water tank be divided into up and down it is multiple rows of, can
It is finely divided according to actual needs, effectively avoids influence of the excessive water pressure to containment ontology.
8, the passive double containment of band segmentation self-contained water tank provided by the invention passes through pipeline using outside moisturizing
Control of export effectively controls inflow.
Description of the drawings
Fig. 1 is the passive double containment profilograph that band provided by the invention is segmented self-contained water tank.
Fig. 2 is metal containment profilograph.
Fig. 3 is metal containment body cross-section figure.
Fig. 4 is metal containment cover head vertical view.
Fig. 5 is the lateral water tank longitudinal sectional drawing of metal containment.
Specific implementation mode
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, below in conjunction with the accompanying drawings and specific real
Applying mode, the present invention is described in further detail.
As shown in Figure 1, the present invention includes：Metal containment 1, lateral cooling water 2, containment internal structure 3, outer panel 4, bottom
Plate 5, top plate 6, top cooling water tank 7, top cooling water 8, lower air inlet 9, upper discharge hole 10, lateral water tank 11, air
Deflector 12, assignment of traffic disk 13.
Connection method is：Bottom plate 5 is seated on ground；Metal containment 1 is seated on bottom plate 5, and the two passes through metal containment
Bottom (head) 16 is connected；Containment internal structure 3 is located in metal containment 1；Outer panel 4 is seated on bottom plate 5, and the two passes through joint bar
It is connected；Top cooling water tank 7 is seated on top plate 6；Top cooling water 8 is stored in top cooling water tank 7；Lateral cooling water 2
It is stored in the lateral water tank of metal containment 11；Lower air inlet 9 and upper discharge hole 10 are located on outer panel 4.
The metal containment 1 is made of metal containment main body 14, cover head 15, bottom (head) 16.
The metal containment main body 14 is made of circumferential and vertical self-contained water tank 11.Steel used in metal containment lateral wall
Material thickness is about 2cm, and madial wall is about 5.2cm with thickness of steel product.
The water tank 11 is uniformly distributed in circumferential direction along metal containment circumferential direction, between separated using partition board 17.Vertically it is being divided into
At multistage, separated up and down by steel frame 23 and steel plate 17 between every section.Anti-corrosion treatment is carried out inside water tank, to prevent water case
Corrosion.The pipeline 18 of each row water tank side setting up and down, is used for the moisturizing of water tank.The side of each water tank is circumferentially
It opens long arc shape spout hole 24 to overflow for superfluous water, while when accident conditions start evaporation, ensureing the discharge of vapor.
The cover head 15, by bottom (head) partition board 21, water storage board 20, cover head top plate 22 form.
The outer panel 4, internal diameter are bigger than the diameter of metal containment 1, between there are enough operating spaces.
The top cooling water tank 7, is supported on top plate 6, there is the reinforced concrete structure of stainless steel clad can using inside.
The pipeline 18 up and down penetrates through setting, in the spout hole 24 of each water tank along the side of each row water tank
Water inlet pipe is arranged in place, for the moisturizing to water tank.Pipeline uses the water pipe of minor diameter, and stream is arranged in the water inlet pipe of every layer of water tank
Inflow is arranged according to evaporation capacity in amount control device.
The spout hole 24, in each water tank upper outside left trepanning, trepanning is along circumferential, long arc shape hole.Bottom water
When case water level reaches position of opening, start to drain.Simultaneously when accident conditions start evaporation, ensure the discharge of vapor.
The discharge outlet 25 is connected in every layer of water tank bottom with water tank, has opening and closing device.It needs to empty for maintenance etc.
Water in water tank.
When the present embodiment executes, the reinforcing bar and template of bottom plate 5 are first arranged, by the bottom (head) 16 of metal containment 1 and bottom plate 5
Reinforcing bar securely connect, subsequent bottom board concrete.Press the connection relation of each component in the present invention again later, layering is gradually built
It makes.
After the completion of the present invention is built, cooling water is injected in top cooling water tank 8 and the lateral water tank of metal containment 11.
Under accident conditions, the water in the cooling water tank of top enters at the top of containment, is flowed around then along bottom (head), into lateral
Water tank, and moisturizing is carried out to each layer water tank by lateral vertical pipeline.Simultaneously the middle water of lateral water tank start to containment into
Row cooling, water are evaporated, and by the evaporation of water and air flowing by Residual heat removal, ensure the containment of entire nuclear power station.I.e.
So that top cooling water tank is gone wrong and can not spraying cooling water, the automatic evaporation for relying only on lateral cooling water can also be very big
Play the role of that waste heat is discharged in degree.
When the present invention is specifically used：
After the completion of being built by the aforementioned order of connection, to the annular water tank and top cooling water of one layer of containment main body topmost
Case water filling.Under accident conditions, top cooling water tank valve opening, top cooling water is evenly distributed on steel by assignment of traffic disk
On containment cover head, cover head is cooled down, meanwhile, lateral water tank also begins to evaporate, and generates vapor.Lateral water tank
Vapor will be discharged to by the lateral openings of vertical water tank between containment and outer panel.Under air baffle guiding, cold sky
Gas is introduced from lower part, takes away vapor between containment and outer panel, vapor is between upper discharge hole and top cooling water tank
Gap discharge, and take away waste heat.The unevaporated water of cover head flows to lateral water tank simultaneously, and moisturizing is carried out to lateral water tank, on
Side Water in Water Tank is full, is conveyed to following water tanks at different levels by water tank side ducts, gravity flow enters following each layer water tank, while passing through control
Water pipe is made, corresponding rate of water make-up is controlled according to the evaporation capacity of different water tanks.Every layer of water tank has lateral openings, and superfluous water is by opening
Mouth overflows.By the intrinsic physical characteristic of water and air, the waste heat generated under accident conditions can be quickly discharged into greatly by the present invention
In gas, to reduce the probability of the serious accidents such as fusible core generation.Drinking-water pipe is set simultaneously, repair is facilitated to drain.
Compared with prior art, the present embodiment has the advantages that：
1, the passive double containment of band segmentation self-contained water tank provided by the invention, utilizes the intrinsic physics of water and air
Characteristic has good Residual heat removal performance using the principle of heat loss through convection, and the branch of the external energy is not necessarily under accident conditions
It holds.
2, the passive double containment of band segmentation self-contained water tank provided by the invention, the passive cooling phase with AP1000
Than increasing lateral water tank and carrying out supplement heat rejecter, substantially increase the cooling performance of containment under accident conditions, improve accident work
Nuclear power station survival ability under condition.
3, the passive double containment of band segmentation self-contained water tank provided by the invention, can greatly improve the knot of containment
Structure performance keeps the structure type of metal containment more reasonable, enables the larger raising of metal containment rigidity, improves metal containment
Anti-seismic performance.
4, the passive double containment of band segmentation self-contained water tank provided by the invention, compared to common containment/screen
Workshop is covered, Residual heat removal is carried out by ad hoc security system, and these security systems are that needs are power-actuated, in accident work
Under condition, there is very big problem in the reliability of security system itself, can be carried out by the intrinsic physical characteristic of the thermal convection current of water more than
Heat discharge, reliability higher.
5, band provided by the invention is segmented the passive double containment of self-contained water tank, and the containment compared to AP1000/
Shielding workshop carries out Residual heat removal by shielding the spray of the water stored by the passive containment cooling water tank at the top of workshop,
Using top cooling water tank and lateral water tank, reservoir storage bigger, even if cooling water tank valve in top can not be beaten under accident conditions
It opens, can also realize a degree of passive cooling by the evaporation of lateral cooling water.It also avoids simultaneously due to containment
The flatness of body surface and the various uncertain and even phenomenons of inhomogeneous cooling supported to water currents.
6, the passive double containment of band provided by the invention segmentation self-contained water tank, the radial direction of water tank and it is vertical be divided into it is more
A water tank independent operating reduces the influence that individual water tanks fail to cooling effect.
7, the passive double containment of band provided by the invention segmentation self-contained water tank, water tank be divided into up and down it is multiple rows of, can
It is finely divided according to actual needs, effectively avoids influence of the excessive water pressure to containment ontology.
8, the passive double containment of band segmentation self-contained water tank provided by the invention passes through pipeline using outside moisturizing
Control of export effectively controls inflow.
Each embodiment is described by the way of progressive in this specification, the highlights of each of the examples are with other
The difference of embodiment, just to refer each other for identical similar portion between each embodiment.For system disclosed in embodiment
For, due to corresponding to the methods disclosed in the examples, so description is fairly simple, related place is referring to method part illustration
.
Those skilled in the art can use different methods to achieve the described function each specific application, but
It is that such implementation should not be considered as beyond the scope of the present invention.
Obviously, those skilled in the art can carry out invention spirit of the various modification and variations without departing from the present invention
And range.If in this way, these modifications and changes of the present invention belong to the claims in the present invention and its equivalent technologies range it
Interior, then the present invention is also intended to including these modification and variations.
Claims (10)
1. a kind of passive double containment of band segmentation self-contained water tank, which is characterized in that including metal containment, lateral cooling
Water, containment internal structure, outer panel, bottom plate, top plate, top cooling water tank, top cooling water, lower air inlet, top row
Stomata, lateral water tank, air baffle and assignment of traffic disk；Wherein, the bottom plate is seated on ground；The metal containment is sat
It falls on bottom plate, the two is connected by metal containment bottom (head)；The containment internal structure is located in metal containment；It is described outer
Side plate is seated on bottom plate, and the two is connected by joint bar；The top cooling water tank is seated on top plate；The top cooling water
It is stored in the cooling water tank of top；The lateral cooling water is stored in the lateral water tank of metal containment；The lower air inlet and
Upper discharge hole is located on outer panel.
2. the passive double containment of band segmentation self-contained water tank according to claim 1, which is characterized in that the steel peace
Full shell is the cylindrical drum that both ends carry elliposoidal end socket, is made of metal containment main body, bottom (head), cover head, all part materials
Matter is special boiler steel.
3. the passive double containment of band segmentation self-contained water tank according to claim 1, which is characterized in that the steel peace
Full shell main body is metal containment cylinder, while as the inner side edge of water tank.
4. the passive double containment of band according to claim 1 segmentation self-contained water tank, which is characterized in that cover head by
Bottom (head) partition board, water storage board, cover head top plate composition.
5. the passive double containment of band segmentation self-contained water tank according to claim 1, which is characterized in that described lateral
Cooling water is the cooling fresh water injected in water tank.
6. the passive double containment of band segmentation self-contained water tank according to claim 1, which is characterized in that the safety
Shell internal structure refers to various structures and the equipment being seated in metal containment.
7. the passive double containment of band segmentation self-contained water tank according to claim 1, which is characterized in that the outside
Plate is that inside carries Leak-tight liner, is applied with ring orientation prestress, with the cylinder compared with strong structure bearing capacity and radiation shielding capability
Shape structure.
8. the passive double containment of band segmentation self-contained water tank according to claim 1, which is characterized in that the bottom plate
As the basis carrying superstructure of double containment, and prevent radioactive substance under accident conditions from being spread to underground.
9. the passive double containment of band segmentation self-contained water tank according to claim 1, which is characterized in that the top plate
As the shielding on the upside of metal containment, and support top cooling water tank.
10. the passive double containment of band segmentation self-contained water tank according to claim 1, which is characterized in that on described
Portion's cooling water tank is supported on top plate, for storing top cooling water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721071389.4U CN207663806U (en) | 2017-08-25 | 2017-08-25 | A kind of passive double containment of band segmentation self-contained water tank |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721071389.4U CN207663806U (en) | 2017-08-25 | 2017-08-25 | A kind of passive double containment of band segmentation self-contained water tank |
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| CN207663806U true CN207663806U (en) | 2018-07-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107527662A (en) * | 2017-08-25 | 2017-12-29 | 上海核工程研究设计院有限公司 | A kind of passive double containment of band segmentation self-contained water tank |
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2017
- 2017-08-25 CN CN201721071389.4U patent/CN207663806U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107527662A (en) * | 2017-08-25 | 2017-12-29 | 上海核工程研究设计院有限公司 | A kind of passive double containment of band segmentation self-contained water tank |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 29 Hong Cao Road, Xuhui District, Shanghai Patentee after: Shanghai Nuclear Engineering Research and Design Institute Co.,Ltd. Address before: No. 29 Hong Cao Road, Xuhui District, Shanghai Patentee before: SHANGHAI NUCLEAR ENGINEERING RESEARCH & DESIGN INSTITUTE Co.,Ltd. |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A passive double-layer safety shell with segmented independent water tank Granted publication date: 20180727 Pledgee: China Construction Bank Corporation Shanghai Xuhui sub branch Pledgor: Shanghai Nuclear Engineering Research and Design Institute Co.,Ltd. Registration number: Y2024310000378 |