CN203966579U - Nuclear island cavity group gallery shape is arranged underground nuclear power station - Google Patents
Nuclear island cavity group gallery shape is arranged underground nuclear power station Download PDFInfo
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- CN203966579U CN203966579U CN201420316612.7U CN201420316612U CN203966579U CN 203966579 U CN203966579 U CN 203966579U CN 201420316612 U CN201420316612 U CN 201420316612U CN 203966579 U CN203966579 U CN 203966579U
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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
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Abstract
The utility model discloses a kind of nuclear island cavity group gallery shape and arrange underground nuclear power station, comprise the nuclear island that utilizes nuclear fission energy to produce steam, described nuclear island is arranged in underground hole group, in described underground hole group, reactor building cavern for placing response heap factory building arranges between two parties, the auxiliary cavity group that is used for placing auxiliary plant, to being on the spot arranged in both sides, reactor building cavern, forms gallery structure.Each factory building of nuclear island is arranged in to underground formation gallery shape structure, can reduces cavern's quantity of underground nuclear island cavity group, be convenient to evade the large principal direction of stress of unfavorable strike and terrestrial stress, be beneficial to Stability of Excavation Surrounding.
Description
Technical field
The utility model relates to underground nuclear power technology, refers to that particularly a kind of nuclear island cavity group gallery shape is arranged underground nuclear power station.
Background technology
USSR (Union of Soviet Socialist Republics) Chernobyl nuclear accident, U.S. San Li island nuclear accident and Fukushima, Japan nuclear accident show, under extreme accident conditions, existing ground nuclear power station is not enough to effective prevention and control nuclear leakage, guarantees nuclear safety.For this reason, some scholars, research institution's proposition both at home and abroad in underground, utilizes the natural screening effect of rock mass by the large scale business construction of nuclear power station, and nuclear pollution under extreme accident conditions is effectively controlled, and improves the security grade of nuclear power station.The countries and regions such as the U.S., Japan, USSR (Union of Soviet Socialist Republics), Europe from the seventies in last century so far, carried out successively the Conceptual Design Study of underground nuclear power station, the basic ideas of its construction are that nuclear power station is related to nuclear equipment, such as reactor, steam generator, main pump, voltage stabilizer, primary coolant circuit pipe and relevant auxiliary device etc., is placed in underground chamber.This construction mode, equipment layout is flexible, and underground chamber scale is less, and cavern's construction and excavation difficulty is lower.
Although correlative study is had it long ago, there is no in the world the case history of large scale business underground nuclear power station at present.This be mainly because: 1. by the construction of nuclear power station in underground, due to cavern excavation, civil engineering expense will increase to some extent; 2. for the accident rate of reduction equipment operation, in construction of nuclear power station process, should reduce the change with reference to power station existing equipment process system as far as possible.As built thinking according to above-mentioned underground nuclear power station, nuclear power station is related to nuclear equipment according to the space requirement of underground chamber, flexible arrangement is in cavern, although can reduce to a certain extent cavern's scale, but will make the layout and the existing ground reference power station that relate to nuclear equipment have relatively big difference, thereby need carry out a large amount of safety evaluations and demonstration, and not meet third generation in the world Construction of Nuclear Electricity standardization, modular total thinking.
Existing ground each factory building of business nuclear island of nuclear power station, such as reactor building, fuel factory building, electrical building, safe factory building, nuclear auxiliary building etc., its internal unit is arranged all and is proved through strict, has standardization and modular feature.Thus, during large scale business underground nuclear power station is built, should ensure that the version, mutual alignment relation, internal unit layout etc. of each factory building of nuclear island are not carried out large change, to reduce the adjustment of core process system as far as possible.But, be subject to the restriction of underground cavern excavation technology, be difficult to provide enough large cavern, existing ground each factory building of nuclear island is copied built in underground completely.
Version, mutual alignment relation, internal unit layout that ensures each factory building of nuclear island etc. is not carried out large adjustment, can meet the requirement of existing underground cavern excavation technology again, the simplest mode of underground nuclear power station construction is that each factory building of nuclear island in the nuclear power station of existing ground is radially stretched centered by reactor building, each factory building is arranged in different small-sized caverns, thereby presents on the whole the feature being circular layout.So, need to build reactor building cavern, fuel factory building cavern, safe factory building cavern, nuclear auxiliary building cavern, electrical building cavern, connect independently underground chamber such as 6 of factory building caverns etc.Like this in underground hole group excavation, need to arrange three layers, totally 38 construction holes, construction is disturbed large, is unfavorable for cavity group adjoining rock stability.And in being circular layout, the axis of the caverns such as fuel factory building cavern, connection factory building cavern is mutually vertical, cannot ensure that each cavern's axis is all intersect with large-angle with strike and the large principal direction of stress of terrestrial stress, is unfavorable for Stability of Excavation Surrounding.Therefore, be necessary the arrangement form of underground nuclear island cavity group to be optimized, to reduce cavern, construction hole quantity, Shi Ge cavern axis is parallel simultaneously, so that nuclear island cavity group is evaded unfavorable strike and the large principal direction of stress of terrestrial stress while arranging.
Summary of the invention
The purpose of this utility model provides the nuclear island cavity group gallery shape of a kind of technical feasibility, economical rationality to arrange underground nuclear power station, and existing ground nuclear island of nuclear power station buildings is arranged in subterranean body.
For achieving the above object, the designed nuclear island cavity group gallery shape of the utility model is arranged underground nuclear power station, nuclear island cavity group gallery shape is arranged underground nuclear power station, comprise the nuclear island that utilizes nuclear fission energy to produce steam, its special character is: described nuclear island is arranged in underground hole group, in described underground hole group, for the auxiliary cavity group of placing auxiliary plant, to being on the spot arranged in both sides, reactor building cavern, form gallery structure.Wherein, described auxiliary cavity group comprise electrical building cavern for placing electrical building, for placing the fuel factory building cavern of fuel factory building, for safe factory building cavern, the nuclear auxiliary building cavern of safety equipment are set.
Further, described electrical building cavern and fuel factory building cavern lay respectively at the both sides of gallery opposition.So, the axis of two gallery shape caverns is parallel to each other, and is beneficial to and when hole group arranges, evades unfavorable strike and the large principal direction of stress of terrestrial stress.
Preferably, described nuclear auxiliary building cavern, safe factory building cavern and fuel factory building cavern be in the same side, and described nuclear auxiliary building cavern, safe factory building cavern and fuel factory building cavern be same combination cavern, to reduce the quantity in cavern and a construction hole.Wherein, described safe factory building cavern has two, standby each other, so can ensure that, in the situation that accident appears in a safe plant and equipment, another safe factory building can ensure the normal operation of nuclear reactor.In described combination cavern, the left and right sides that two safe factory buildings are positioned at nuclear fuel factory building, isolates physically mutually, ensures that a safe factory building occurs that accident does not affect the normal operation of another safe factory building.Described nuclear auxiliary building is positioned at the leftmost side or the rightmost side of combination cavern.
Further, in described electrical building cavern, be provided with electrical building and for controlling the main steam valve chamber of jet chimney folding.So, the stube cable of electrical building and ground central control room and main steam line can be arranged in same tunnel, save construction investment.
Further, between described reactor building cavern and described auxiliary plant cavity group, arrange there is traffic, pipeline, cable, fire-fighting, draught effect be connected tunnel.So, can guarantee that pipeline between each auxiliary plant and reactor building, cable arrangements are in relatively independent tunnel, the staff in Qie Ge auxiliary plant cavern can directly not enter reactor building cavern by other cavern, is beneficial to nuclear safety guard zone.
Further, described auxiliary cavity group peripheral disposition has main access tunnel, and each auxiliary plant cavern is provided with at least two communicating branch holes and is connected with main access tunnel, and wherein, described main access tunnel two ends are sensible earth's surface all, forms two gateways with ground.So, can guarantee that each auxiliary plant cavern is all directly connected with main access tunnel, be convenient to equipment conveying, avoid the phase mutual interference of constructing between cavern; Meanwhile, each auxiliary plant cavern all has two tunnels to be connected with main access tunnel, and main access tunnel two ends are sensible earth's surface all, can guarantee that if an outlet is because of in the impassable situation of accident, personnel can flee from time by another outlet under extreme accident conditions.
In order effectively to control the pressure in reactor building under major accident, described nuclear island cavity group gallery shape arranges that underground nuclear power station comprises pressure release cavern, and described pressure release cavern is positioned at main tunnel inner side, and the Jin Yu of pressure release cavern reactor building cavern communicates.
Again further, described reactor building cavern top rock mass or earth's surface are provided with non-active pond, and described non-active pond is connected with reactor building spray system by pipeline, so that chilled water gravity flow enters reactor building under nuclear accident operating mode.
The utility model is arranged in different underground chambers relating to core buildings in nuclear power station, thereby forms gallery type underground hole group.Its beneficial effect is mainly reflected in:
(1) by each factory building of nuclear island is arranged in different underground chambers, by the controlling space size of single cavern in the scale of built underground chamber, thereby guarantee that existing underground cavern excavation technology can meet underground nuclear power station and relate to core buildings and be arranged in underground requirement;
(2) the fuel factory building in nuclear island, nuclear auxiliary building, safe factory building etc. are built in assembled factory building cavern, effectively reduced the quantity of the main cavern of cavity group, be beneficial to cavity group adjoining rock stability;
(3) cavern's axis such as assembled factory building cavern, electrical building cavern is parallel, is beneficial to and when hole group arranges, evades unfavorable strike and the large principal direction of stress of terrestrial stress.
(5) non-active pond is arranged in reactor building Mass Near The Top of Underground Cavity, can utilize potential energy gravity flow for the water supply of reactor fire-fighting system in nuclear accident situation.Avoid electric system supply failure under accident conditions, the reactor fire-fighting system causing lost efficacy.
Accompanying drawing explanation
Fig. 1 is the cavern layout structural representation that a kind of nuclear island cavity group gallery shape is arranged underground nuclear power station.
Fig. 2 is the plan structure schematic diagram of Fig. 1.
Fig. 3 is the plant layout structure schematic diagram that a kind of nuclear island cavity group gallery shape is arranged underground nuclear power station.
In figure: reactor building cavern 1, reactor building 1.1, auxiliary plant cavity group 2, electrical building cavern 3, pressure release cavern 4, nuclear auxiliary building cavern 5, safe factory building cavern 6, fuel factory building cavern 7, combination cavern 8, nuclear auxiliary building 51, safe factory building 61, fuel factory building 71, pipeline tunnel 9, equipment conveying tunnel 10, main access tunnel 11, non-active pond 12, main steam valve chamber 13, electrical building 14, pipeline 15, connects tunnel 16, communicating branch tunnel 17.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail, but this embodiment should not be construed as restriction of the present utility model.
For reduce the adjustment of core process system as far as possible, within the operating technique level of the construction scale that simultaneously makes underground chamber in current underground chamber, the simplest mode of underground nuclear power station construction is that each factory building of nuclear island in the nuclear power station of existing ground is radially stretched centered by reactor building, each factory building is arranged in different small-sized caverns, thereby presents on the whole the feature being circular layout.So, need to build reactor building cavern, fuel factory building cavern, safe factory building cavern, nuclear auxiliary building cavern, electrical building cavern, connect independently underground chamber such as 6 of factory building caverns etc.Like this in underground hole group excavation, need to arrange three layers, totally 38 construction holes, construction is disturbed large, is unfavorable for cavity group adjoining rock stability.Therefore, be necessary the arrangement form of underground nuclear island cavity group to be optimized, to reduce cavern and a construction hole quantity.
Consider in underground cavern excavation, should make cavern's axis and unfavorable strike and the large principal direction of stress of terrestrial stress be intersect with large-angle as far as possible, be beneficial to Stability of Excavation Surrounding.Therefore, the utility model to the optimum ideals of underground nuclear island cavity group is, the electrical building cavern at fuel factory building cavern and main steam valve chamber place is arranged in parallel in two offsides of reactor building cavern, all the other workshop buildings are in the cavern at fuel factory building or main steam valve chamber place, thus the nuclear island cavity group arrangement form of formation gallery shape.So arrange, cavern's quantity is reduced to 4 by 6, and a construction hole is reduced to 24 by 38, and Qie Ge cavern axis is parallel, so that nuclear island cavity group is evaded unfavorable strike and the large principal direction of stress of terrestrial stress while arranging.Concrete arrangement form, as described below:
Nuclear island cavity group gallery shape shown in figure is arranged underground nuclear power station, comprise be arranged on underground for the reactor building cavern 1 of placing response heap factory building 1.1, for placing the auxiliary plant cavity group 2 of auxiliary plant, for containing the pressure release cavern 4 of containment vessel inner high voltage gas under accident conditions.Auxiliary plant cavity group comprises combination cavern 2 and electrical building cavern 3.Reactor building cavern 1 is positioned at the middle part of nuclear island cavity group, auxiliary plant cavity group is gallery shape positioned opposite in both sides, wherein combine cavern 2 and be positioned at backer inner side, electrical building cavern 3 is positioned at backer outside, and pressure release cavern 4 is positioned at the middle rock mass region of combination cavern 2 and electrical building cavern 3.
In combination cavern 2, as seen from the figure, fuel factory building 71 is placed in the middle for each factory building, and fuel factory building 71 both sides are furnished with respectively safe factory building 61, and the combination interior leftmost side, cavern 2 is furnished with nuclear auxiliary building 51; In electrical building cavern 3, be provided with main steam valve chamber 13 and electrical building 14.Reactor building cavern 1 is cylindrical shape, diameter 46m, high 87m; Combination cavern 2 is gateway opening shape, size 30m * 70.5m * 226m (wide * high * long, lower same); Electrical building cavern 3 is gateway opening shape, size 30m * 60m * 60m; For meeting the requirement of pressure release volume, pressure release cavern 4 is cylindrical shape, diameter 20m, high 42m.
The requirement of hitting for meeting cavern's crown adjoining rock stability and the weapons of system, and through PLASTIC FINITE ELEMENT ANALYSIS calculating, each Mass Near The Top of Underground Cavity rock mass thickness of reactor building cavern 1 and auxiliary plant cavity group 2 is minimum is 70m, it is 135m that this programme is selected thickness; For meeting Rock Slide Stability requirement between cavern, through PLASTIC FINITE ELEMENT ANALYSIS, calculate, reactor building cavern 1 and the combination 2 spacing L1 of cavern are 50m, and reactor building cavern 1 and the 3 spacing L2 of electrical building cavern are 50m, and reactor building cavern 1 and the 4 spacing L3 of pressure release cavern are 60m.
For meeting the movement requirement of the main equipments such as reactor building 1.1 interior steam generators, apart from reactor building cavern, 1 bottom 29m eminence construction has equipment conveying tunnel 10, sensible earth's surface; Apart from reactor building cavern, 1 bottom 9m eminence construction is useful on the pipeline tunnel 9 of arranging main steam line, main steam line coupled reaction heap factory building 1.1 and ground steam turbine factory building, and the main steam valve chamber 13 on main steam line is positioned at electrical building cavern 3; For meeting the requirements such as traffic, fire-fighting, ventilation, cable, pipeline, reactor building cavern 1 connects by being connected tunnel 16 with combination cavern 2, electrical building cavern 3, pressure release cavern 4; For meeting the requirements such as traffic, fire-fighting, ventilation, combination cavern 2, Room 3, electrical building hole are all built at least 2 communicating branch holes 17 and are connected with main access tunnel 11, and wherein electrical building is also connected with equipment conveying tunnel 10; Main access tunnel 11 sensible earth's surfaces, two ends, form two gateways with ground.In combination cavern 2, adjacent factory building has shared communicating branch hole 17.
Non-active pond 12 is built on the earth's surface on 1 top, reactor building cavern.Non-active pond 12 is connected with reactor building 1.1 by many pipelines 15, so that chilled water gravity flow enters reactor building under nuclear accident operating mode.
The above is only a kind of embodiment of the present utility model, and protection domain of the present utility model is also not only confined to above-described embodiment, and all technical schemes belonging under the utility model thinking all belong to protection domain of the present utility model.
Claims (10)
1. nuclear island cavity group gallery shape is arranged underground nuclear power station, comprise the nuclear island that utilizes nuclear fission energy to produce steam, it is characterized in that: described nuclear island is arranged in underground hole group, in described underground hole group, reactor building cavern (1) for placing response heap factory building (1.1) arranges between two parties, the auxiliary cavity group (2) that is used for placing auxiliary plant, to being on the spot arranged in both sides, reactor building cavern (2), forms gallery structure.
2. nuclear island cavity group gallery shape according to claim 1 is arranged underground nuclear power station, it is characterized in that: described auxiliary cavity group (2) comprises electrical building cavern (3) for placing main steam valve (13) and electrical building (14), for placing the fuel factory building cavern (7) of fuel factory building (71), for the safe factory building cavern (6) of safety equipment factory building (61) is set, for placing the nuclear auxiliary building cavern (5) of nuclear auxiliary building (51).
3. nuclear island cavity group gallery shape according to claim 2 is arranged underground nuclear power station, it is characterized in that: described electrical building cavern (3) and fuel factory building cavern (7) lay respectively at the both sides of gallery.
4. nuclear island cavity group gallery shape according to claim 3 is arranged underground nuclear power station, it is characterized in that: described nuclear auxiliary building cavern (5), safe factory building cavern (6) are with fuel factory building cavern (7) in the same side, and described nuclear auxiliary building cavern (5), safe factory building cavern (6) are same combination cavern (8) with fuel factory building cavern (7).
5. nuclear island cavity group gallery shape according to claim 4 is arranged underground nuclear power station, it is characterized in that: in described combination cavern (8), safety equipment factory building (61) has two, lay respectively at fuel factory building (71) both sides, described nuclear auxiliary building (51) is positioned at the leftmost side or the rightmost side of combination cavern (8).
6. according to the nuclear island cavity group gallery shape described in any one in claim 2～5, arrange underground nuclear power station, it is characterized in that: in described electrical building cavern (3), be provided with for controlling main steam valve chamber (13) and the electrical building (14) of jet chimney folding.
7. according to nuclear island cavity group gallery shape described in claim 6, arrange underground nuclear power station, it is characterized in that: what between described reactor building cavern (1) and described auxiliary plant cavity group (2), setting had traffic, pipeline, cable, fire-fighting, a draught effect is connected tunnel (16).
8. according to the nuclear island cavity group gallery shape described in claim 7, arrange underground nuclear power station, it is characterized in that: described auxiliary cavity group (2) peripheral disposition has main access tunnel (11), each cavern of described auxiliary cavity group (2) all arranges at least two communicating branch holes (17) and is connected with main access tunnel (11), wherein, described main access tunnel (11) two ends are sensible earth's surface all, forms two gateways with ground.
9. nuclear island cavity group gallery shape according to claim 8 is arranged underground nuclear power station, it is characterized in that: it also comprises pressure release cavern (4), described pressure release cavern (4) is positioned at main access tunnel (11) inner side and communicates with reactor building cavern (1).
10. according to the nuclear island cavity group gallery shape described in claim 7～9 any one, arrange underground nuclear power station, it is characterized in that: described reactor building cavern (1) top rock mass or earth's surface are provided with non-active pond (12), described non-active pond (12) is connected with reactor building (11) by pipeline (15).
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104064234A (en) * | 2014-06-13 | 2014-09-24 | 长江勘测规划设计研究有限责任公司 | Underground nuclear plant with nuclear island cavern groups distributed in gallery shape |
| CN105390169A (en) * | 2015-12-28 | 2016-03-09 | 中国核动力研究设计院 | Underground nuclear island workshop of deeply buried nuclear power station |
| CN110600152A (en) * | 2019-09-06 | 2019-12-20 | 长江勘测规划设计研究有限责任公司 | Symmetric underground nuclear power emergency escape system and escape method |
-
2014
- 2014-06-13 CN CN201420316612.7U patent/CN203966579U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104064234A (en) * | 2014-06-13 | 2014-09-24 | 长江勘测规划设计研究有限责任公司 | Underground nuclear plant with nuclear island cavern groups distributed in gallery shape |
| CN104064234B (en) * | 2014-06-13 | 2017-04-12 | 长江勘测规划设计研究有限责任公司 | Underground nuclear plant with nuclear island cavern groups distributed in gallery shape |
| CN105390169A (en) * | 2015-12-28 | 2016-03-09 | 中国核动力研究设计院 | Underground nuclear island workshop of deeply buried nuclear power station |
| CN110600152A (en) * | 2019-09-06 | 2019-12-20 | 长江勘测规划设计研究有限责任公司 | Symmetric underground nuclear power emergency escape system and escape method |
| CN110600152B (en) * | 2019-09-06 | 2024-04-12 | 长江勘测规划设计研究有限责任公司 | Symmetrical underground nuclear power emergency escape system and escape method |
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Owner name: CHINA NUCLEAR POWER DESIGN INST. CHINA THREE GORGE Free format text: FORMER OWNER: CHINA NUCLEAR POWER DESIGN INST. Effective date: 20150210 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhou Shuda Inventor after: Yang Jiasheng Inventor after: Chen Youhua Inventor after: Liu Lixin Inventor after: Li Qing Inventor after: Sui Haiming Inventor after: Xiao Yunfei Inventor after: Ming Zhedong Inventor after: Shang Cunliang Inventor after: Zhang Tiantian Inventor after: Niu Xinqiang Inventor after: Yang Qigui Inventor after: Lu Youmei Inventor after: Zhang Wenqi Inventor after: Zhao Xin Inventor after: Zhang Feng Inventor after: Shi Huatang Inventor after: Liu Hao Inventor before: Zhou Shuda Inventor before: Chen Youhua Inventor before: Liu Lixin Inventor before: Li Qing Inventor before: Sui Haiming Inventor before: Xiao Yunfei Inventor before: Ming Zhedong Inventor before: Niu Xinqiang Inventor before: Yang Qigui Inventor before: Zhang Wenqi Inventor before: Zhao Xin Inventor before: Zhang Feng Inventor before: Shi Huatang Inventor before: Liu Hao Inventor before: Yang Jiasheng |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: ZHOU SHUDA NIU XINQIANG YANG QIGUI ZHANG WENQI ZHAO XIN ZHANG FENG SHI HUATANG LIU HAO YANG JIASHENG CHEN YOUHUA LIU LIXIN LI QING SUI HAIMING XIAO YUNFEI MING ZHEDONG TO: ZHOU SHUDA NIU XINQIANG YANG QIGUI LU YOUMEI ZHANG WENQI ZHAO XIN ZHANG FENG SHI HUATANG LIU HAO YANG JIASHENG CHEN YOUHUA LIU LIXIN LI QING SUI HAIMING XIAO YUNFEI MING ZHEDONG SHANG CUNLIANG ZHANG TIANTIAN |
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Effective date of registration: 20150210 Address after: 430010 Jiefang Avenue, Hubei, Wuhan, China, No. 1863 Patentee after: Changjiang Survey, Planning, Design and Research Co., Ltd. Patentee after: Nuclear Power Institute of China Patentee after: China Three Gorges Corporation Address before: 430010 Jiefang Avenue, Hubei, Wuhan, China, No. 1863 Patentee before: Changjiang Survey, Planning, Design and Research Co., Ltd. Patentee before: Nuclear Power Institute of China |