CN203982804U - The nuclear island cavity group underground nuclear power station that is circular layout - Google Patents
The nuclear island cavity group underground nuclear power station that is circular layout Download PDFInfo
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- CN203982804U CN203982804U CN201420316579.8U CN201420316579U CN203982804U CN 203982804 U CN203982804 U CN 203982804U CN 201420316579 U CN201420316579 U CN 201420316579U CN 203982804 U CN203982804 U CN 203982804U
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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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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The utility model discloses a kind of nuclear island cavity group underground nuclear power station that is circular layout, comprise the nuclear island that utilizes nuclear fission energy to produce steam, described nuclear island is arranged in underground hole group, described underground hole group comprises and is arranged on underground reactor building cavern and auxiliary plant cavity group for placing response heap factory building, and described auxiliary plant cavity group is arranged ringwise around reactor building cavern.This underground nuclear island of nuclear power station cavern pattern that is circular layout makes existing underground cavern excavation technology meet underground construction of nuclear power station requirement, hole group is circular layout and arranges that with the each factory building of ground nuclear island of nuclear power station orientation is basic identical simultaneously, less to the nuclear power plant technique system adjustment of existing ground.
Description
Technical field
The utility model relates to underground nuclear power technology, refers to particularly a kind of nuclear island cavity group underground nuclear power station that is circular layout.
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, carry 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., be 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.
The each factory building of existing ground 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 the 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, the existing ground each factory building of nuclear island is copied built in underground completely.Therefore, be necessary to study a kind of layout pattern of underground nuclear power station nuclear island buildings, version, mutual alignment relation, internal unit layout that ensures the each factory building of nuclear island etc. is not carried out large adjustment, can meet again the requirement of existing underground cavern excavation technology.
Summary of the invention
The purpose of this utility model provides the nuclear island cavity group of a kind of technical feasibility, the economical rationality underground nuclear power station that is circular layout, 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 of the utility model underground nuclear power station that is circular layout, 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, described underground hole group comprises that described auxiliary plant cavity group is arranged ringwise around reactor building cavern for reactor building cavern and the auxiliary plant cavity group of placing response heap factory building.Wherein, described auxiliary plant cavity group comprises electrical building cavern for placing electrical building, for placing the fuel factory building cavern of fuel factory building, for the safe factory building cavern of placing safe factory building, for the auxiliary plant cavern of placing nuclear auxiliary building, have the connection factory building cavern of transport, maintenance, pressure release effect concurrently for laying main steam valve.
Preferably, described auxiliary plant cavity group is counterclockwise fuel factory building cavern, auxiliary plant cavern, safe factory building cavern, electrical building cavern by connecting that factory building cavern starts successively.This factory building order of placement and existing ground nuclear island factory building order of placement are basic identical, but for meeting the requirement of cavity group adjoining rock stability, auxiliary plant and reactor building are at regular intervals.So, compared with the nuclear island building of nuclear power plant of ground, the position relationship of underground nuclear power station nuclear island auxiliary plant and reactor is only radially to stretch, the pipeline that runs through between auxiliary plant and reactor building only needs radially to lengthen, need not the internal unit of reactor building and auxiliary plant be arranged and be adjusted in a large number, the adjustment of core process system be less.Consider the nuclear safety requirement of nuclear power station, less to the adjustment of existing core process system, be more conducive to the safe operation of nuclear power station.
Further, between described auxiliary plant cavity group and reactor building cavern, arrange there is traffic, pipeline, cable, fire-fighting, draught effect be connected tunnel.So, can ensure that pipeline between each auxiliary plant and reactor building, cable arrangements are in relatively independent tunnel, and staff in each auxiliary plant cavern can directly not enter reactor building cavern by other cavern, be beneficial to nuclear safety guard zone.
Further, described auxiliary plant cavity group peripheral disposition has main access tunnel, and each cavern of described auxiliary plant cavity group is provided with at least two communicating branch holes and is connected with main access tunnel, wherein, all sensible earth's surfaces, described main access tunnel two ends, form two gateways with ground.So, can ensure 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 all sensible earth's surfaces, main access tunnel two ends can ensure 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.
Again further, described reactor building cavern top rock mass or earth's surface arrange 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 the nuclear island underground hole group of arranging ringwise.Its beneficial effect is mainly reflected in:
(1) by each nuclear island factory building is arranged in different underground chambers, by the controlling space size of single cavern in the scale of built underground chamber, thereby guarantee that the core buildings (as reactor building and with radioactive nuclear auxiliary building) that relates to that existing underground cavern excavation technology can meet in underground nuclear island of nuclear power station is arranged in underground requirement;
(2) fuel factory building cavern, auxiliary plant cavern, safe factory building cavern, connection factory building cavern, electrical building cavern etc. are " ring " shape layout around reactor building cavern, arrange that with the each factory building of ground nuclear island of nuclear power station orientation is basic identical, less to the nuclear power plant technique system adjustment of existing ground;
(3) respectively relate to core factory building and be arranged in independently in cavern, be conducive to the subregion isolation of nuclear pollution in nuclear accident situation;
(4) each Mass Near The Top of Underground Cavity rock mass thickness exceedes conventional weapon and hits or fly the degree of depth of shock, can effectively prevent that guided missile from hitting and aircraft impact.
Brief description of the drawings
Fig. 1 is the nuclear island cavity group underground nuclear power station structural representation that is circular layout.
Fig. 2 is the plan structure schematic diagram of Fig. 1.
In figure: reactor building cavern 1, electrical building cavern 2, fuel factory building cavern 3, safe factory building cavern 4, nuclear auxiliary building cavern 5, connects factory building cavern 6, equipment conveying the first tunnel 7, equipment conveying the second tunnel 8, pipeline tunnel 9, main access tunnel 10, non-active pond 11, pipeline 12, auxiliary plant cavity group 13, connect tunnel 14, communicating branch hole 15.
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.
According to the basic ideas that maintain the each factory building layout pattern of existing ground nuclear island of nuclear power station and adjust to reduce core process system as far as possible, the utility model is placed in each nuclear island factory building when underground, substantially maintains the relative position relation of the each factory building of existing ground nuclear island.But for meeting the requirement of adjoining rock stability, each nuclear island factory building need be built respectively in different underground chambers, and cavern's spacing should meet adjoining rock stability requirement.So, due to mutually adjacent by ground of the each factory building of nuclear island, become separate construction in different caverns, each factory building spacing increases, thereby brings the adjustment that runs through length of pipeline between each factory building.Meanwhile, nuclear island is placed in to underground massif, the external environment of nuclear island has become rock mass from atmosphere, brings the problems such as traffic, fire-fighting, ventilation, needs to arrange many connection tunnels.
Nuclear island cavity group shown in the figure underground nuclear power station that is circular layout, comprise the nuclear island that utilizes nuclear fission energy to produce steam, nuclear island is arranged in underground hole group, and underground hole group comprises for the reactor building cavern 1 of placing response heap factory building, for placing the auxiliary plant cavity group 13 of auxiliary plant.Auxiliary plant cavity group 13 comprises electrical building cavern 2 for placing electrical building, for placing the fuel factory building cavern 3 of fuel factory building, for the safe factory building cavern 4 of placing safe factory building, for the auxiliary plant cavern 5 of placing nuclear auxiliary building, for lay main steam valve have concurrently transport, maintenance, pressure release effect connection factory building cavern 6.Reactor building cavern 1 is positioned at the middle part of nuclear island cavity group, and auxiliary plant cavity group 13 is ringwise around its layout.Wherein, auxiliary plant cavity group is counterclockwise fuel factory building cavern 3, auxiliary plant cavern 5, safe factory building cavern 4, electrical building cavern 2 by connecting that factory building cavern 6 starts successively.
Reactor building cavern 1 is cylindrical shape, diameter 46m, high 87m; Electrical building cavern 2 is gateway opening shape, size 16m × 54m × 67m (wide × high × long, lower same); Fuel factory building cavern 3 is gateway opening shape, size 19m × 67m × 70m; Safe factory building cavern 4 is gateway opening shape, size 19m × 54m × 95m; Auxiliary plant cavern 5 is gateway opening shape, size 38m × 60m × 72m; Connecting factory building cavern 6 is gateway opening shape, size 30m × 46m × 69m.
The requirement of hitting for meeting cavern's crown adjoining rock stability and the weapons of system, and calculate through PLASTIC FINITE ELEMENT ANALYSIS, each Mass Near The Top of Underground Cavity rock mass thickness of reactor building cavern 1 and auxiliary plant cavity group 13 should be greater than 70m, and this programme Mass Near The Top of Underground Cavity rock mass thickness is 135m; For meeting Rock Slide Stability requirement between cavern, calculate through PLASTIC FINITE ELEMENT ANALYSIS, preferred reaction heap factory building cavern 1 is 50m with being connected the 6 spacing L1 of factory building cavern, reactor building cavern 1 and the 3 spacing L2 of fuel factory building cavern are 50m, reactor building cavern 1 and the 5 spacing L3 of nuclear auxiliary building cavern are 50m, reactor building cavern 1 and the 4 spacing L4 of safe factory building cavern are 50m, and reactor building cavern 1 and the 2 spacing L5 of electrical building cavern are 80m.
For meeting the movement requirement of the main equipment such as steam generator in reactor building, have equipment conveying the first tunnel 7 apart from the 1 bottom 29m eminence construction of reactor building cavern, equipment conveying the first tunnel 7 be connected 6 UNICOMs of factory building cavern and be connected to earth's surface via equipment conveying the second tunnel 8.The main equipments such as the steam generator in reactor building are transported to and are connected factory building cavern 6 by earth's surface by equipment conveying the second tunnel 8, connect factory building cavern 6 interior through crane vertical transport to equipment conveying the first tunnel 7, and be transported to reactor building; Main steam line coupled reaction heap factory building and ground steam turbine factory building, be arranged in bottom, reactor building cavern 9m eminence pipeline tunnel 9, is provided with main steam valve chamber on main steam line, and main steam valve chamber is positioned at and connects factory building cavern 6; For meeting the requirements such as traffic, fire-fighting, ventilation, cable, pipeline, reactor building cavern 1 connects by being connected tunnel 14 with each cavern of auxiliary plant cavity group 13, and between each adjacent cavern, also communicates by connecting tunnel 14 in auxiliary cavity group 13; Outside reactor building cavern 1 and auxiliary plant cavity group 13, be arranged with main access tunnel 10, for meeting the requirements such as traffic, fire-fighting, ventilation, each cavern of auxiliary plant cavity group 13 all builds at least 2 communicating branch holes 15 and is connected with main access tunnel 10; Main access tunnel 10 sensible earth's surfaces, two ends, form two gateways with ground.
Non-active pond 11 is built on the earth's surface on 1 top, reactor building cavern.Non-active pond 11 is connected with the spray system of reactor building by many pipelines 12, 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 (6)
1. the nuclear island cavity group underground nuclear power station that is circular layout, 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, described underground hole group comprises reactor building cavern (1) for reactor building is set and for the auxiliary plant cavity group (13) of auxiliary plant is set, described auxiliary plant cavity group (13) is arranged ringwise around reactor building cavern.
2. the nuclear island cavity group according to claim 1 underground nuclear power station that is circular layout, it is characterized in that: described auxiliary plant cavity group (13) comprises electrical building cavern (2) for placing electrical building, for placing the fuel factory building cavern (3) of fuel factory building, for the safe factory building cavern (4) of placing safe factory building, for the nuclear auxiliary building cavern (5) of placing nuclear auxiliary building, have the connection factory building cavern (6) of transport, maintenance, pressure release effect concurrently for laying main steam valve.
3. the nuclear island cavity group according to claim 2 underground nuclear power station that is circular layout, is characterized in that: by connecting factory building cavern (6), to start be counterclockwise fuel factory building cavern (3), nuclear auxiliary building cavern (5), safe factory building cavern (4), electrical building cavern (2) to described auxiliary plant cavity group (13) successively.
4. according to the underground nuclear power station that is circular layout of the nuclear island cavity group described in claim 3, it is characterized in that: between described auxiliary plant cavity group (2) and reactor building cavern (1), arrange there is traffic, pipeline, cable, fire-fighting, draught effect be connected tunnel (14).
5. according to the underground nuclear power station that is circular layout of the nuclear island cavity group described in claim 4, it is characterized in that: described auxiliary plant cavity group (2) peripheral disposition has main access tunnel (10), the each cavern of described auxiliary plant cavity group (2) is provided with at least two communicating branch holes (15) and is connected with main access tunnel (10), wherein, all sensible earth's surfaces, described main access tunnel (10) two ends, form two gateways with ground.
6. according to the underground nuclear power station that is circular layout of the nuclear island cavity group described in any one in claim 1～5, it is characterized in that: described reactor building cavern (1) top rock mass or earth's surface arrange non-active pond (11), described non-active pond (11) is connected with the interior reactor building spray system in reactor building cavern 1 by pipeline (12).
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| CN201420316579.8U CN203982804U (en) | 2014-06-13 | 2014-06-13 | The nuclear island cavity group underground nuclear power station that is circular layout |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104134477A (en) * | 2014-06-13 | 2014-11-05 | 长江勘测规划设计研究有限责任公司 | Nuclear island cavern group annular arrangement underground nuclear power plant |
| 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 |
| CN106128534A (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 with low and intermediate level radioac disposal site |
| CN106777823A (en) * | 2017-01-25 | 2017-05-31 | 天津大学 | Construction schemes of underground structure group progress simulation optimization method based on ventilation numerical simulation |
-
2014
- 2014-06-13 CN CN201420316579.8U patent/CN203982804U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104134477A (en) * | 2014-06-13 | 2014-11-05 | 长江勘测规划设计研究有限责任公司 | Nuclear island cavern group annular arrangement underground nuclear power plant |
| 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 |
| CN106128534A (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 with low and intermediate level radioac disposal site |
| CN106128534B (en) * | 2016-08-10 | 2018-09-14 | 长江勘测规划设计研究有限责任公司 | A kind of underground nuclear power station with low and intermediate level radioac disposal site |
| CN106777823A (en) * | 2017-01-25 | 2017-05-31 | 天津大学 | Construction schemes of underground structure group progress simulation optimization method based on ventilation numerical simulation |
| CN106777823B (en) * | 2017-01-25 | 2020-04-07 | 天津大学 | Underground cavern group construction progress simulation optimization method based on ventilation numerical simulation |
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