CN205900105U - Underground nuclear power plant rock mass hole room type containment - Google Patents
Underground nuclear power plant rock mass hole room type containment Download PDFInfo
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- CN205900105U CN205900105U CN201620861580.8U CN201620861580U CN205900105U CN 205900105 U CN205900105 U CN 205900105U CN 201620861580 U CN201620861580 U CN 201620861580U CN 205900105 U CN205900105 U CN 205900105U
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- containment
- reactor core
- rock mass
- cavern
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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Abstract
The utility model discloses an underground nuclear power plant rock mass hole room type containment, include to lie in subaerial ground pond and lie in buried containment casing that it has access hole and equipment gate to open on the containment casing, equipment gate and access hole link to each other with the underpass, and in containment casing outside -in had set gradually rock mass, rock mass transformation layer and containment steel lining, the rock mass transformation layer outside is provided with stretched the internal intensive stock of rock -entering, still the well is collected to buried reactor core fusing thing and the hole room is collected to the reactor core including being located, and well location in containment casing below is collected to reactor core fusing thing to it links to each other to collect the hole room through reactor core melts conveyer pipe and reactor core. The utility model discloses utilize the abundant rock mass layer in underground as the outer layer structure of underground nuclear power plant containment, have the excellent ability of resisting external man induced event, providing the biological protective screen of radioactivity, collect the hole room and compile the reactor core melts of collecting production among the severe accident through setting up underground reactor core, utilize the rock mass protective screen to prevent that radioactive substance from spreading to the external world.
Description
Technical field
The utility model is related to nuclear power technology, in particular to a kind of underground nuclear power station rock mass cavern type containment.
Background technology
After Fukushima, Japan nuclear accident, country is more strict and prudent to the examination ＆ approval of nuclear power projects, the safety to nuclear power station
Require also to refer to higher status.For this situation, underground nuclear power station provides new approaches for China's nuclear power developing.
Nuclear power plant containment shell refers to contain the shell building of most of system of nuclear steam supply system and equipment, in order to
Accommodate reactor pressure vessel and Partial security system, it is completely isolated with external environment condition, radioactive biological barrier is provided,
Meanwhile, certain protection is played to external event (aircraft impact, cyclone etc.).But (aircraft is to nuclear safety for Zhang Tao, Fang Qin et al.
The numerical simulation of shell impact damage effect, Polytechnics of PLA journal: natural science edition, 2014,15 (4): 335-340) grind
Study carefully discovery containment under air speed is for 100m/s shock and damage seriously, the centre of percussion occurs partial penetration simultaneously probably to draw
Send out nuclear leakage.And the actually modern times nearly 200m/s of aircarrier aircraft cruising speed, existing safe shell technology is under large aircraft shock
It is likely to cause the serious consequence to Environment release for a large amount of radioactive substances.For underground nuclear power station, subterranean body is inherently
There is excellent protection external event, the functions such as radiolabeled biotin barrier are provided, its performance is much better than the safety of common nuclear power station
Shell.For improving economy, save construction cost, reduce build process complexity, underground nuclear power station is considered as cancelling nuclear power station
The reactor building generally adopting, redesigns underground nuclear power station rock mass cavern type containment.
Additionally, the reactor fuel melting down in nuclear plant severe accident forms high temperature, highly radioactive reactor core fused mass.It is anti-
The only expansion further of radioactive pollution scope, prior art generally pass through in fused mass heap cooling and be detained (as ap1000),
The mode of reactor core fused mass trapping (as epr) is processed.But both modes are required for arranging the cold of complexity in containment
But facility (as Chinese patent: be detained passive cooling system under nuclear reactor major accident state in fused mass heap, application number:
Cn201510309669.3), on the one hand increased the system complexity in containment, reduce overall security, on the other hand
Expand the volume of containment, improve nuclear power station holistic cost.
Content of the invention
The purpose of this utility model is to overcome the weak point of above-mentioned existing background technology, in conjunction with the spy of underground nuclear power station
Point, proposes a kind of underground nuclear power station rock mass cavern type containment, had both had excellent opposing external world man induced event, provides radioactivity
The ability of biological barrier, can prevent the alpha-contamination expansion of reactor core fused mass in major accident moreover it is possible to suit measures to local conditions to carry again
High security, reduces cost.
For achieving the above object, a kind of underground nuclear power station rock mass cavern type containment designed by the utility model, including
The ground pond resting on the ground and containment shell located underground, described containment shell has access hole and equipment lock
Door, described equipment gate is connected with underpass with access hole, and it is characterized in that, described containment shell ecto-entad according to
Secondary be provided with rock mass, rockmass modification layer and containment steel liner, be provided with outside described rockmass modification layer stretch into strong in rock mass
Change anchor pole；Also include reactor core fusing thing located underground and collect well and core catch cavern, described reactor core fusing thing collects well location
Below containment shell, and it is connected with core catch cavern by reactor core fused mass delivery pipe.
Further, described reactor core fused mass collects well location outside the rockmass modification layer immediately below containment inner pressure vessel
Side, in accident, reactor core fused mass automatically falls into fused mass under gravity and collects in well.
Further, also include the containment heat exchanger that is arranged in containment, described containment heat exchanger leads to
Cross core catch cavern cooling tube to be connected with ground pond, realize the passive cooling to underground containment for the ground cooling water.
Further, described core catch cavern is located at below containment shell bottom water plane, described reactor core melting
The inclined arrangement of thing delivery pipe, high-end connection reactor core fused mass collects well, and low side connects core catch cavern, and reactor core fused mass can
Under gravity along reactor core fused mass delivery pipe landing to core catch cavern.
Further, high-temperature heat exchanger is set in described core catch cavern, and described high-temperature heat exchanger passes through heap
Core is collected cavern's cooling tube and is connected with ground pond, realizes the passive for a long time cooling procedure to reactor core fused mass.
Further, the thickness of described rockmass modification layer is 0.8m～1.8m, and the thickness in described containment steel liner is
6mm～40mm.At least one layer of described rockmass modification layer.A diameter of 20mm～80mm of described strengthening anchor pole, length is
1200mm～2500mm, to strengthen shock resistance and cavern's stability of containment.
Further, described reactor core fused mass collect well, reactor core fused mass delivery pipe and core catch cavern Dong Bi and
Bottom arranges reactor core fused mass expendable material, such as tio2、fe3o4、al2o3Deng.Described reactor core fused mass expendable material is at least one
Layer, reactor core fused mass expendable material, by mixing with reactor core material, improves physics, the chemical property of reactor core fused mass.
The beneficial effects of the utility model are as follows: the underground nuclear power station rock mass cavern type providing by using the utility model
Containment can have excellent opposing people from external world by the use of the abundant rock mass layer in underground as underground nuclear power station containment layer structure
Ability for event, offer radiolabeled biotin barrier.Collect collection major accident by being arranged on the core catch cavern of underground
The reactor core fused mass of middle generation, prevents radioactive substance from outwardly spreading using rock mass barrier.
The utility model advantage:
1st, safe.Using the excellent anti-strike capability of rock mass layer and the containing to radioactive substance, improve security.
2nd, improve economy.On the one hand, containment is high as the core level equipment manufacturing cost preventing radioactive substance leakage,
Containment outboard structure is used as by subterranean strata, simplifies the armored concrete outer layer involving great expense in prior art, improve whole
Body economy.On the other hand, cancel and in containment in prior art, process the cooling of reactor core fused mass and the facility being detained, can be effective
Reduce containment volume, reduce equipment complexity in containment, improve economy further.
Brief description
Fig. 1 is a kind of structural representation of the utility model underground nuclear power station rock mass cavern type containment；
In figure: rock mass 1, rockmass modification layer 2, strengthen anchor pole 3,4 in containment steel liner, pressure vessel 5, reactor core fusing thing is received
Collection well 6, reactor core fused mass delivery pipe 7, core catch cavern 8, high-temperature heat exchanger 9, ground 10, core catch cavern cooling tube
11, ground pond 12, containment heat exchanger 13.
Specific embodiment
Below in conjunction with the accompanying drawings and embodiment is described in further detail to the utility model, but this embodiment should not be understood
It is to restriction of the present utility model.
A kind of the utility model underground nuclear power station rock mass cavern's type containment is as shown in figure 1, include ground installation and underground
Facility, ground installation includes the ground pond 12 positioned at ground more than 10, and underground installation includes the safety positioned at ground below 10
Shell housing, reactor core fusing thing collect well 6 and core catch cavern 8, containment shell pass sequentially through reactor core fused mass collect well 6,
Reactor core fused mass delivery pipe 7 is connected with core catch cavern 8.Wherein, containment shell includes rock mass 1, rock from outside to inside successively
Structural reform is made 4 in layer 2 and containment steel liner, is provided with the strengthening anchor pole 3 stretching in rock mass 1 outside rockmass modification layer 2.Strengthening anchor pole
3 a diameter of 20mm～80mm, length is 1200mm～2500mm；The thickness of rockmass modification layer 2 is 0.8m～1.8m, and rock mass changes
Make at least one layer of layer 2；In containment steel liner, 4 thickness is 6mm～40mm.At least open on containment shell an access hole with
One equipment gate, equipment gate is connected with underpass with access hole.Containment heat exchanger 13 is arranged in containment, peace
Full shell heat exchanger 13 is connected with ground pond 12 by core catch cavern cooling tube 11.Reactor core fused mass is collected well 6 and is located at
Outside rockmass modification layer 2 immediately below pressure vessel 5.Core catch cavern 8 is located at below containment shell bottom water plane, reactor core
The inclined arrangement of fused mass delivery pipe 7, high-end connection reactor core fused mass collects well 6, and low side connects core catch cavern 8.Reactor core
Fused mass collects well 6, reactor core fused mass delivery pipe 7 and core catch cavern 8 hole wall and bottom setting at least one of which reactor core melting
Thing expendable material, such as tio2、fe3o4、al2o3Deng.Setting high-temperature heat exchanger 9, high-temperature heat exchanger 9 in core catch cavern 8
It is connected with ground pond 12 by core catch cavern cooling tube 11.
Existing experiment and theory all prove, rock mass has excellent anti-strike capability Zhang Dezhi, and high-strength steel bomb is to granite
The experimental study of positive penetration；Zhou Jiannan, penetration depth of projectiles into rock computing formula comparative analysis；Young c.w., penetration
Equation, has natural advantage in terms of resisting conventional weapon strike.The underground nuclear power station rock mass that the utility model is carried
Cavern's type containment is by the use of abundant rock mass 1 as containment layer structure, outer to large aircraft shock, conventional weapon attack etc.
Portion man induced event has excellent protective.Secondly, abundant rock mass 1 also can rise to the radioactive substance producing in major accident
Arrive the effect contained, isolate, rock mass 1 structure also acts as distance protection and the effect being physically isolated protection to nuclear radiation,
When there is the major accidents such as molten heap, containment heat exchanger 13 passes through the passive heat exchanging process in ground pond 12
Constantly take the heat in containment out of.If accident deteriorates further, reactor core fused mass burn through pressure vessel 5, melts further downward
Wear containment, fall under gravity into reactor core fused mass and collect well 6, hereafter, reactor core is flowed into by reactor core fused mass delivery pipe 7
Collect in cavern 8, in the process, reactor core fused mass collects well 6, reactor core fused mass delivery pipe 7 and core catch cavern 8 inwall
And the reactor core fused mass expendable material of bottom is mixed with reactor core fused mass, constantly improve physical aspect and the heat transfer of reactor core fused mass
Characteristic.In core catch cavern 8, high-temperature heat exchanger 9 realizes passive heat exchange by ground pond 12, constantly melts reactor core
Melt heat derives, realize the lasting cooling of reactor core fused mass.
The utility model improves the overall security of underground nuclear power station.On the other hand, the present invention simplifies in prior art
The armored concrete outer layer involving great expense, cancels and processes the cooling of reactor core fused mass and setting of being detained in prior art in containment
Apply, containment volume can be effectively reduced, reduce equipment complexity in containment, improve economy.
Other unspecified parts are prior art.The utility model is not strictly limited to above-mentioned enforcement
Example.
Claims (10)
1. a kind of underground nuclear power station rock mass cavern type containment, including the ground pond (12) resting on the ground and located underground
Containment shell, described containment shell has access hole and equipment gate, and described equipment gate and access hole are led to underground
Road be connected it is characterised in that: described containment shell ecto-entad is disposed with rock mass (1), rockmass modification layer (2) and safety
Shell Leak-tight liner (4), is provided with the strengthening anchor pole (3) stretching in rock mass (1) outside described rockmass modification layer (2)；Also include being located at
The reactor core fusing thing of underground collects well (6) and core catch cavern (8), and described reactor core fusing thing is collected well (6) and is located at containment
Below housing, and it is connected with core catch cavern (8) by reactor core fused mass delivery pipe (7).
2. a kind of underground nuclear power station rock mass cavern type containment according to claim 1 it is characterised in that: described reactor core melt
Melt thing to collect outside the rockmass modification layer (2) that well (6) is located at immediately below containment inner pressure vessel (5).
3. a kind of underground nuclear power station rock mass cavern type containment according to claim 1 it is characterised in that: also include arrange
Containment heat exchanger (13) in containment, described containment heat exchanger (13) passes through core catch cavern cooling tube
(11) it is connected with ground pond (12).
4. a kind of underground nuclear power station rock mass cavern type containment according to claim 1 it is characterised in that: described reactor core is received
Collection cavern (8) is located at below containment shell bottom water plane, the inclined arrangement of described reactor core fused mass delivery pipe (7), high-end
Connect reactor core fused mass and collect well (6), low side connects core catch cavern (8).
5. a kind of underground nuclear power station rock mass cavern type containment according to claim 1 it is characterised in that: described reactor core is received
Setting high-temperature heat exchanger (9) in collection cavern (8), described high-temperature heat exchanger (9) passes through core catch cavern cooling tube (11)
It is connected with ground pond (12).
6. a kind of underground nuclear power station rock mass cavern type containment according to claim 1 it is characterised in that: described rock mass changes
The thickness making layer (2) is 0.8m～1.8m, and in described containment steel liner, the thickness of (4) is 6mm～40mm.
7. a kind of underground nuclear power station rock mass cavern type containment according to claim 1 it is characterised in that: described strengthening anchor
A diameter of 20mm～80mm of bar (3), length is 1200mm～2500mm.
8. a kind of underground nuclear power station rock mass cavern type containment according to claim 1 it is characterised in that: described rock mass changes
Make at least one layer of layer (2).
9. a kind of underground nuclear power station rock mass cavern type containment according to claim 1 it is characterised in that: described reactor core melt
Melt thing collection well (6), reactor core fused mass delivery pipe (7) and core catch cavern (8) hole wall and bottom setting reactor core fused mass is sacrificial
Domestic animal material.
10. a kind of underground nuclear power station rock mass cavern type containment according to claim 9 it is characterised in that: described reactor core
At least one layer of fused mass expendable material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620861580.8U CN205900105U (en) | 2016-08-10 | 2016-08-10 | Underground nuclear power plant rock mass hole room type containment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620861580.8U CN205900105U (en) | 2016-08-10 | 2016-08-10 | Underground nuclear power plant rock mass hole room type containment |
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| Publication Number | Publication Date |
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| CN205900105U true CN205900105U (en) | 2017-01-18 |
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| CN201620861580.8U Active CN205900105U (en) | 2016-08-10 | 2016-08-10 | Underground nuclear power plant rock mass hole room type containment |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106128520A (en) * | 2016-08-10 | 2016-11-16 | 长江勘测规划设计研究有限责任公司 | A kind of underground nuclear power station rock mass cavern type containment |
| CN106816184A (en) * | 2017-03-02 | 2017-06-09 | 华北电力大学 | A kind of system for preventing nuclear power station radioactive grain product from spreading |
| CN109898900A (en) * | 2019-02-28 | 2019-06-18 | 中国核电工程有限公司 | A kind of reactor building and its method for arranging |
-
2016
- 2016-08-10 CN CN201620861580.8U patent/CN205900105U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106128520A (en) * | 2016-08-10 | 2016-11-16 | 长江勘测规划设计研究有限责任公司 | A kind of underground nuclear power station rock mass cavern type containment |
| CN106816184A (en) * | 2017-03-02 | 2017-06-09 | 华北电力大学 | A kind of system for preventing nuclear power station radioactive grain product from spreading |
| CN109898900A (en) * | 2019-02-28 | 2019-06-18 | 中国核电工程有限公司 | A kind of reactor building and its method for arranging |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |