CN102005252B - Depleted fuel storage grillwork for pressurized water reactor nuclear power station - Google Patents
Depleted fuel storage grillwork for pressurized water reactor nuclear power station Download PDFInfo
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- CN102005252B CN102005252B CN2010105122990A CN201010512299A CN102005252B CN 102005252 B CN102005252 B CN 102005252B CN 2010105122990 A CN2010105122990 A CN 2010105122990A CN 201010512299 A CN201010512299 A CN 201010512299A CN 102005252 B CN102005252 B CN 102005252B
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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 invention relates to a depleted fuel storage grillwork for a pressurized water reactor nuclear power station, comprising coaming components and a bottom board. A chamber is formed among the coaming components and the bottom board; middle long board components and middle short board components penetrating through the middle long board components are arranged in the chamber; the middle long board components and the middle short board components are arranged in a transfixion manner to form square storage chambers; and the bottom board is provided with through holes matched with the square storage chambers. In the invention, through installing the middle long board components and the middle short board components which are in transfixion connection, the square storage chambers are formed. The structural form of the novel fuel storage assembly reduces the storage spacing of the depleted fuel and increases the use ratio of the depleted fuel storage water tank, therefore, more depleted fuel can be stored in a unit area; and moreover, the depleted fuel storage grillwork has better criticality safety and better earthquake resistance.
Description
Technical field
The present invention relates to a kind of spent fuel storage rack, more particularly, relate to a kind of pressurized-water reactor nuclear power plant spent fuel storage rack.
Background technology
For pressurized-water reactor nuclear power plant, be two generation heap type or three generations's heap type all is provided with the bunkering screen work.The bunkering screen work generally is divided into New fuel storage framework and spent fuel storage rack.New fuel storage framework generally is positioned between the New fuel storage of fuel factory building, is used for storing the front fresh fuel of heap.Spent fuel storage rack generally is positioned at the Spent fuel pit of fuel factory building, be used for storing the spentnuclear fuel that draws off from reactor, and fresh fuel finally enters front the keeping in of heap.
The nuclear power station run duration is stored in the Spent fuel pit of fuel factory building usually from the spentnuclear fuel that reactor draws off.Spentnuclear fuel is nearly all to adopt wet method to store, and namely spent fuel storage rack is to be positioned under water, and this is because water can provide transparent radiation protection shielding layer, and water can be derived the decay heat of spentnuclear fuel easily.It has certain shock resistance the designing requirement of spent fuel storage rack, has certain subcriticality simultaneously when storage of spent fuel.Shock resistance guarantees by structural design.Subcriticality is to guarantee by the neutron absorber plate that arranges on irradiated fuel store spacing and spent fuel storage rack.
Early stage spent fuel storage rack is mainly the loose type spent fuel storage rack.The loose type spent fuel storage rack does not arrange neutron absorber plate, for guaranteeing that it satisfies critical, shielding, thermal technology's requirement, its storage spacing is quite large, the storage capacity of Spent fuel pit is very limited, screen work is fixed on tank floor usually, and the standing supporting construction that is equipped with is to guarantee not collision mutually when the earthquake between screen work and screen work and between screen work and pool wall.Traditional spent fuel storage rack storage capability is lower, can not satisfy the needs of use, and the fixed form in screen work and pond easily causes the destruction of pool construction under the earthquake operating mode, causes serious accident.
Summary of the invention
The technical problem to be solved in the present invention is, storage spacing for the spent fuel storage rack that exists in prior art is larger, the defective that the utilization factor of Spent fuel pit is lower provides a kind of pressurized-water reactor nuclear power plant spent fuel storage rack, can finely overcome the above problems.
The technical solution adopted for the present invention to solve the technical problems is: a kind of pressurized-water reactor nuclear power plant spent fuel storage rack comprises coaming plate parts and the base plate that is arranged on described coaming plate feature bottom; Form chamber between described coaming plate parts and described base plate; The middle short slab parts that are provided with middle long slab parts in described chamber and run through described middle long slab parts; In the middle of described the long slab parts and described in the middle of short slab parts run through to arrange and form square storage cell.
A kind of pressurized-water reactor nuclear power plant spent fuel storage rack of the present invention, preferred, be provided with the fluting that runs through for short slab parts in the middle of described on described middle long slab parts; Be provided with the fluting for described coaming plate parts, described middle long slab parts and described middle short slab positioning parts on described base plate.
A kind of pressurized-water reactor nuclear power plant spent fuel storage rack of the present invention, preferred, be arranged at intervals with projection on described middle short slab parts, the fluting on described projection and described middle long slab parts is equipped with; In fluting in the middle of described projection insertion is described on the long slab parts, run through middle long slab parts and the middle short slab parts of setting in order to the location.
A kind of pressurized-water reactor nuclear power plant spent fuel storage rack of the present invention, preferred, be provided with the groove in order to fixing described middle long slab parts or described middle short slab parts on described coaming plate parts; In the middle of described, the nested screens in end of long slab parts is arranged in groove on described coaming plate parts, and the short slab parts nest card position, described centre that is connected with described coaming plate parts is arranged in groove on described coaming plate parts.
A kind of pressurized-water reactor nuclear power plant spent fuel storage rack of the present invention, preferred, the end part interval of described coaming plate parts is provided with projection and groove; The projection of interconnective two described coaming plate parts and groove are pegged graft fixing mutually.
A kind of pressurized-water reactor nuclear power plant spent fuel storage rack of the present invention, preferably, long slab in the middle of in the middle of described, the long slab parts comprise, be arranged in the middle of the long slab surface the first neutron absorber plate and cover described neutron absorber plate and with described in the middle of the first outer cladding plate of being fixedly installed of long slab; In the middle of described, the both sides of long slab are arranged at intervals with described the first neutron absorber plate, and the described first outer cladding plate covers and is arranged on described the first neutron absorber plate.
A kind of pressurized-water reactor nuclear power plant spent fuel storage rack of the present invention, preferably, short slab in the middle of in the middle of described, the short slab parts comprise, be arranged in the middle of the short slab surface the second neutron absorber plate and cover described the first neutron absorber plate and with described in the middle of the second outer cladding plate of being fixedly installed of short slab.
A kind of pressurized-water reactor nuclear power plant spent fuel storage rack of the present invention, the 3rd outer cladding plate that preferred, described coaming plate parts comprise coaming plate, be arranged on the 3rd neutron absorber plate on coaming plate surface and cover described neutron absorber plate and be fixedly installed with described coaming plate; The both sides of described coaming plate are arranged at intervals with described the 3rd neutron absorber plate, and the described the 3rd outer cladding plate covers and is arranged on described the 3rd neutron absorber plate.
A kind of pressurized-water reactor nuclear power plant spent fuel storage rack of the present invention, preferred, be provided with leg assembly on described base plate, in order to support fixing described spent fuel storage rack.
A kind of pressurized-water reactor nuclear power plant spent fuel storage rack of the present invention, preferred, be provided with the through hole that coordinates with described square storage cell on described base plate.
The present invention can reach following beneficial effect: by middle long slab parts and the middle short slab parts that mutually run through connection are set, form square storage cell, the version of this new spent fuel storage rack of the present invention, dwindled the irradiated fuel store spacing, improved the utilization factor of Spent fuel pit, unit area can be stored more spentnuclear fuel, and the spent fuel storage rack of the present invention's design has criticality safety and anti-seismic performance preferably preferably.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples, in accompanying drawing:
To be pressurized-water reactor nuclear power plant of the present invention look schematic diagram with the master of spent fuel storage rack (12 * 11) to Fig. 1;
Fig. 2 is the schematic top plan view that pressurized-water reactor nuclear power plant of the present invention is used spent fuel storage rack (12 * 11);
Fig. 3 is the A section enlarged drawing of Fig. 1;
To be pressurized-water reactor nuclear power plant of the present invention look schematic diagram with the master of the middle long slab parts of spent fuel storage rack (12 * 11) to Fig. 4;
Fig. 5 is pressurized-water reactor nuclear power plant of the present invention with the enlarged diagram of overlooking of the middle long slab parts of spent fuel storage rack (12 * 11);
To be pressurized-water reactor nuclear power plant of the present invention look schematic diagram with the master of the middle short slab parts of spent fuel storage rack (12 * 11) to Fig. 6;
Fig. 7 is pressurized-water reactor nuclear power plant of the present invention with the enlarged diagram of overlooking of the middle short slab parts of spent fuel storage rack (12 * 11);
In figure
1, coaming plate parts 101, coaming plate
3, the 3rd outer cladding plate 4, the 3rd neutron absorber plate
5, base plate 6, supporting leg screw plate
7, supporting leg bolt 8, middle long slab parts
9, middle short slab parts 10, chamber
11, square storage cell 12, through hole
13, fluting 14, projection
15, the second neutron absorber plate 16, the second outer cladding plate
17, the first outer cladding plate 18, the first neutron absorber plate
Embodiment
Understand for technical characterictic of the present invention, purpose and effect being had more clearly, now contrast accompanying drawing and describe the specific embodiment of the present invention in detail.
As shown in Fig. 1～2, be a preferred embodiment provided by the invention, a kind of pressurized-water reactor nuclear power plant spent fuel storage rack, the base plate 5 that comprises coaming plate parts 1 and be arranged on coaming plate parts 1 bottom.Coaming plate parts 1 comprise four coaming plate parts all around, form chamber 10 between four coaming plate parts and base plate 5.The middle short slab parts 9 that chamber 10 inside are provided with middle long slab parts 8 and run through middle long slab parts 8.The interspersed setting of middle long slab parts 8 and middle short slab parts 9 forms square storage cell 11.Be provided with the through hole 12 that coordinates with square storage cell 11 on base plate 5 so that chilled water flow into from through hole 12 carry out cooling.
Further, chamber 10 can be rectangle chamber, square chamber, the perhaps chamber of other shapes.
As shown in Figure 4, be provided with the fluting 13 that runs through for middle short slab parts 9 on middle long slab parts 8, fluting 13 is spaced the formation multiple row.As described in Figure 5, be arranged at intervals with projection 14 on middle short slab parts 9, projection 14 is disposed on the two side of middle short slab parts 9.In the middle of middle short slab parts 9 are vertically set on, on long slab parts 8, projection 14 is inserted the interior realization of fluting 13 and is pegged graft.Fluting 13 positions on the position of the projection 14 on middle short slab parts 9 and middle long slab parts 8 are corresponding, in the middle of every in the fluting 13 of short slab parts 9 each row of insertion.In the middle of short slab parts 9 vertically are plugged in the middle of polylith on short slab parts 9 after, the junction of projection 14 and fluting 13 is welded and fixed.
Further, be provided with projection on two sides on middle long slab parts 8, corresponding, and be provided with groove on the vertically disposed coaming plate parts 1 in the two sides of middle long slab parts 8, in the middle of projection and groove fit realize, long slab parts 8 and coaming plate parts 1 is fixing.After inserting Primary Location the groove of middle long slab parts 8 from coaming plate parts 1, by welding, middle long slab parts 8 and coaming plate parts 1 are welded and fixed.Same, and also be provided with groove on the vertically disposed two coaming plate parts of middle short slab parts 9, what is connected with these two coaming plates parts 1 in chamber 10 two is listed as centre short slab parts 9 nested screens and is arranged in groove on these two coaming plates parts 1.
Further, be provided with the fluting of locating for coaming plate parts 1, middle long slab parts 8 and middle short slab parts 9 on base plate 5.Realize fixing in fluting on the upper and lower end parts insertion base plate 5 of centre long slab parts 8, same, in the fluting on the upper and lower side insertion base plate 5 of middle short slab parts 9, in the fluting on the lower end insertion base plate 5 of coaming plate parts 1.
Further, be arranged at intervals with projection and groove on the two sides of coaming plate parts 1, two coaming plate parts 1 are during vertical the connection, and the groove on contacted two sides and projection are mutually pegged graft and realized preliminary fixing.
Middle long slab parts 8 and middle short slab parts 9 mutually run through to arrange and form a plurality of square storage cells 11, and a plurality of square storage cells 11 are positioned at the inside of chamber 10, and the bottom of chamber 10 is provided with base plate 5.Be provided with the through hole 12 that coordinates with square storage cell 11 on base plate 5, through hole 12 is communicated with square storage cells 11 and is the flow direction of the chilled water guiding that provides access.The surrounding of base plate 5 and baffle assembly 1 are by being welded and fixed.
Middle long slab parts 8 run through the square storage cell 11 of formation mutually with middle short slab parts 9, and square storage cell 11 centre distance are determined by the fluting spacing on middle long slab parts 8 and middle short slab width.
As shown in Fig. 6～7, short slab in the middle of middle short slab parts 9 comprise, be arranged in the middle of second neutron absorber plate 15 on short slab surface and the second outer cladding plate 16 that covers the second neutron absorber plate 15 and be welded and fixed with middle short slab.
As shown in Fig. 4～5, long slab in the middle of middle long slab parts 8 comprise, be arranged in the middle of first neutron absorber plate 18 on long slab surface and the first outer cladding plate 17 that covers the first neutron absorber plate 18 and be welded and fixed with middle long slab.
Further, the both sides of middle long slab are arranged at intervals with the first outer cladding plate of neutron absorber plate 18, the first 17 and cover and be arranged on the first neutron absorber plate.
As shown in Figure 3, coaming plate parts 1 the 3rd outer cladding plate 3 that comprises coaming plate 101, be arranged on the 3rd neutron absorber plate 4 on coaming plate 101 surfaces and cover the 3rd neutron absorber plate 4 fully and be welded and fixed with coaming plate.
Further, the both sides of coaming plate 101 are arranged at intervals with the 3rd outer cladding plate of neutron absorber plate 4, the three 3 and cover and be arranged on the 3rd neutron absorber plate 4.
As shown in Figure 2, base plate 5 has 132 through holes 12 corresponding to square storage cell 11 arrangement positions, 132 through hole 12 correspondences are communicated with 132 square storage cells 11, irradiated fuel store is in the square storage cell 11 of spent fuel storage rack, and the sectional dimension of square storage cell 11 is greater than the sectional dimension of spentnuclear fuel.
Be provided with leg assembly on base plate 5, in order to fixing spent fuel storage rack.As shown in Figure 1, leg assembly comprises the supporting leg screw plate 6 that is fixed on base plate 5 and the supporting leg bolt 7 that is threaded connection with supporting leg screw plate 6.
Be provided with four supporting leg screw plates 6 on base plate 5, base plate 5 has some flutings along the direction that middle short slab parts 9 insert, and is convenient to middle minor plate part spare 9 is positioned, with size and the centre distance that guarantees square storage cell 11.The vertical direction of installation direction of middle short slab parts 9, the edge of base plate 5 has a fluting, is convenient to locate the coaming plate parts.On base plate 5, the position at corresponding each square storage cell 11 centers has through hole 12, makes the chilled water can the upper reaches, cooling spentnuclear fuel.
Further, four holes for hoist are arranged on base plate 5, be used for spent fuel storage rack in the lifting of transportation, installation process.Be provided with a screw and some through holes on supporting leg screw plate 6, supporting leg screw plate 6 and base plate 5 weld the formation base plate part.The center line in the hole of each supporting leg screw plate 6 aligns with through hole center line on base plate 5.The size of supporting leg screw plate 6 and welding position are determined according to the size of spent fuel storage rack.Supporting leg bolt 7 is threaded connection with supporting leg screw plate 6, and fluting is arranged at its top, adjusts supporting leg bolt 7 for the adjustment instrument stressed even to guarantee.The bottom of supporting leg bolt 7 freely is seated on the Spent fuel pit floor.
The present invention is by arranging middle long slab parts and the middle short slab parts that mutually run through connection, form square storage cell, the version of this new spent fuel storage rack of the present invention, dwindled the irradiated fuel store spacing, improved the utilization factor of Spent fuel pit, unit area can be stored more spentnuclear fuel, and the spent fuel storage rack of the present invention's design has criticality safety and anti-seismic performance preferably preferably.
The above is described embodiments of the invention by reference to the accompanying drawings; but the present invention is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic; rather than restrictive; those of ordinary skill in the art is under enlightenment of the present invention; not breaking away from the scope situation that aim of the present invention and claim protect, also can make a lot of forms, within these all belong to protection of the present invention.
Claims (5)
1. a pressurized-water reactor nuclear power plant spent fuel storage rack, comprise coaming plate parts and the base plate that is arranged on described coaming plate feature bottom; Form chamber between described coaming plate parts and described base plate; It is characterized in that: the middle short slab parts that are provided with middle long slab parts in described chamber and run through described middle long slab parts; In the middle of described the long slab parts and described in the middle of short slab parts run through to arrange and form square storage cell; Be provided with the fluting that runs through for short slab parts in the middle of described in the middle of described on the long slab parts; Be provided with the fluting for described coaming plate parts, described middle long slab parts and described middle short slab positioning parts on described base plate; Be arranged at intervals with projection on the short slab parts in the middle of described, the fluting on described projection and described middle long slab parts is equipped with; In fluting in the middle of described projection insertion is described on the long slab parts, run through middle long slab parts and the middle short slab parts of setting in order to the location;
Long slab in the middle of in the middle of described, long slab parts comprise, be arranged in the middle of the long slab surface the first neutron absorber plate and cover described the first neutron absorber plate and with described in the middle of the first outer cladding plate of being fixedly installed of long slab; In the middle of described, the both sides of long slab are arranged at intervals with described the first neutron absorber plate, and the described first outer cladding plate covers and is arranged on described the first neutron absorber plate;
Short slab in the middle of in the middle of described, short slab parts comprise, be arranged in the middle of the short slab surface the second neutron absorber plate and cover described the second neutron absorber plate and with described in the middle of the second outer cladding plate of being fixedly installed of short slab;
The 3rd outer cladding plate that described coaming plate parts comprise coaming plate, be arranged on the 3rd neutron absorber plate on coaming plate surface and cover described the 3rd neutron absorber plate and be fixedly installed with described coaming plate; The both sides of described coaming plate are arranged at intervals with described the 3rd neutron absorber plate, and the described the 3rd outer cladding plate covers and is arranged on described the 3rd neutron absorber plate.
2. pressurized-water reactor nuclear power plant spent fuel storage rack according to claim 1, is characterized in that, is provided with the groove in order to fixing described middle long slab parts or described middle short slab parts on described coaming plate parts; In the middle of described, the nested screens in end of long slab parts is arranged in groove on described coaming plate parts, and the short slab parts nest card position, described centre that is connected with described coaming plate parts is arranged in groove on described coaming plate parts.
3. pressurized-water reactor nuclear power plant spent fuel storage rack according to claim 2, is characterized in that, the end part interval of described coaming plate parts is provided with projection and groove; The projection of interconnective two described coaming plate parts and groove are pegged graft fixing mutually.
4. pressurized-water reactor nuclear power plant spent fuel storage rack according to claim 1, is characterized in that, is provided with leg assembly on described base plate, in order to support fixing described spent fuel storage rack.
5. pressurized-water reactor nuclear power plant spent fuel storage rack according to claim 1, is characterized in that, is provided with the through hole that coordinates with described square storage cell on described base plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105122990A CN102005252B (en) | 2010-10-14 | 2010-10-14 | Depleted fuel storage grillwork for pressurized water reactor nuclear power station |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105122990A CN102005252B (en) | 2010-10-14 | 2010-10-14 | Depleted fuel storage grillwork for pressurized water reactor nuclear power station |
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| CN102005252A CN102005252A (en) | 2011-04-06 |
| CN102005252B true CN102005252B (en) | 2013-06-19 |
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| CN2010105122990A Active CN102005252B (en) | 2010-10-14 | 2010-10-14 | Depleted fuel storage grillwork for pressurized water reactor nuclear power station |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102543228B (en) * | 2012-03-01 | 2016-02-24 | 中广核工程有限公司 | Device for suspending nuclear power station neutron poison sample |
| CN102610287A (en) * | 2012-03-28 | 2012-07-25 | 中广核工程有限公司 | Spent fuel storage grillwork for nuclear power plant |
| CN108682462B (en) * | 2018-05-22 | 2020-02-14 | 广东核电合营有限公司 | Measurement and leveling process for unevenness of bottom of spent fuel pool of million-kilowatt nuclear power plant |
| CN108682465B (en) * | 2018-05-22 | 2020-04-24 | 广东核电合营有限公司 | Installation process for expanding spent fuel pool of million-kilowatt nuclear power plant |
| CN108735315B (en) * | 2018-06-04 | 2024-05-14 | 江苏核电有限公司 | VVER spent fuel assembly storage cell and manufacturing method |
| CN110534217B (en) * | 2019-09-09 | 2023-08-18 | 中国船舶重工集团公司第七一九研究所 | Spent fuel storage grillwork for ocean nuclear power platform |
| CN112599266B (en) * | 2020-11-24 | 2024-07-16 | 中国核电工程有限公司 | Spent fuel storage grillwork |
| CN113628773B (en) * | 2021-04-20 | 2023-11-10 | 中国核工业华兴建设有限公司 | Nuclear power station spent fuel dry-type storage equipment support equipment is assembled with adjustable device |
| CN114620384B (en) * | 2022-04-11 | 2023-05-30 | 江苏西顿科技有限公司 | Storage shelf for nuclear waste |
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|---|---|---|---|---|
| US4042828A (en) * | 1975-11-17 | 1977-08-16 | Nuclear Services Corporation | Rack for nuclear fuel elements |
| EP0773554A1 (en) * | 1995-11-10 | 1997-05-14 | A.T.E.A. Société Atlantique de Techniques Avancées | Installation and method for joint storage of nuclear fuel assemblies and control rods |
| EP1260990A1 (en) * | 2001-05-24 | 2002-11-27 | Equipos Nucleares, S.A. | A segmented lattice rack to store fuels coming from nuclear reactors |
| JP4227693B2 (en) * | 1999-02-03 | 2009-02-18 | 三菱重工業株式会社 | Method for producing spent fuel storage rack |
| CN201859662U (en) * | 2010-10-14 | 2011-06-08 | 中广核工程有限公司 | Spent fuel storage framework for pressurized-water reactor nuclear power station |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001208887A (en) * | 2000-01-28 | 2001-08-03 | Toshiba Corp | Fuel storing rack material and fuel storing rack |
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2010
- 2010-10-14 CN CN2010105122990A patent/CN102005252B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4042828A (en) * | 1975-11-17 | 1977-08-16 | Nuclear Services Corporation | Rack for nuclear fuel elements |
| EP0773554A1 (en) * | 1995-11-10 | 1997-05-14 | A.T.E.A. Société Atlantique de Techniques Avancées | Installation and method for joint storage of nuclear fuel assemblies and control rods |
| JP4227693B2 (en) * | 1999-02-03 | 2009-02-18 | 三菱重工業株式会社 | Method for producing spent fuel storage rack |
| EP1260990A1 (en) * | 2001-05-24 | 2002-11-27 | Equipos Nucleares, S.A. | A segmented lattice rack to store fuels coming from nuclear reactors |
| CN201859662U (en) * | 2010-10-14 | 2011-06-08 | 中广核工程有限公司 | Spent fuel storage framework for pressurized-water reactor nuclear power station |
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| JP特开2001-208887A 2001.08.03 |
| JP特许第4227693号B2 2009.02.18 |
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Address after: 518023 No. 69 Shennan Middle Road, Shenzhen, Guangdong, Futian District Co-patentee after: CHINA GENERAL NUCLEAR POWER Corp. Patentee after: CHINA NUCLEAR POWER ENGINEERING Co.,Ltd. Address before: 518023 No. 69 Shennan Middle Road, Shenzhen, Guangdong, Futian District Co-patentee before: CHINA GUANGDONG NUCLEAR POWER GROUP Co.,Ltd. Patentee before: CHINA NUCLEAR POWER ENGINEERING Co.,Ltd. |