CN102982854B - A kind of spent fuel storage module - Google Patents
A kind of spent fuel storage module Download PDFInfo
- Publication number
- CN102982854B CN102982854B CN201210447883.1A CN201210447883A CN102982854B CN 102982854 B CN102982854 B CN 102982854B CN 201210447883 A CN201210447883 A CN 201210447883A CN 102982854 B CN102982854 B CN 102982854B
- Authority
- CN
- China
- Prior art keywords
- intermediate receptacle
- fuel
- storage module
- reservoir module
- spent fuel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Abstract
The present invention relates to a kind of spent fuel storage module, it is characterized in that, comprise the intermediate receptacle (8) be located in reservoir module border and the fuel container (9) be located in intermediate receptacle (8), reservoir module border is formed by connecting by reservoir module concrete body (7) and highway body of wall (6), and the spent fuel storage module being positioned at highway (1) both sides is communicated with highway (1) by the fuel access way (5) be located on highway body of wall (6).Spent fuel storage module provided by the invention is applicable to dry type, wet type two kinds of banking systems, achieve modularization and the blocking of irradiated fuel store, and adopt integrated seismic design, altogether because accident risk reduces, the long-term cooling of spentnuclear fuel utilizes non-active natural convection air, the risk losing cooling power reduces greatly, improves nuclear power plant's overall security and economy.
Description
Technical field
The invention belongs to Nuclear Power Station's Exhausted Fuels storage and design of Cooling System technical field, be specifically related to a kind of spent fuel storage module.
Background technology
Irradiated fuel store is the important stage of nuclear fuel cycle, and the nuclear fuel that nuclear power plant constantly more renews in whole phase in longevity domestic demand also draws off used spentnuclear fuel.Spentnuclear fuel has and continues to release decay heat, has radioactivity, under specific circumstances may the feature such as recovery of critical, and therefore, for any type of nuclear power plant, the intermediate storage of spentnuclear fuel, cooling and shielding are all the problems that cannot avoid.The intermediate storage of current spentnuclear fuel mainly contains wet type storage and dry storage two kinds of modes, wet type store by nuclear power plant or near construction independently Spent fuel pit and related system realize storage and the cooling of spentnuclear fuel; Dry storage then depends on independently dry storage facility.The advantage of wet type storage is that system cools ability is strong, radiomaterial pardon is good, inherent safety is high, and shortcoming is system complex, needs to run within the whole nuclear power plant phase in longevity; The advantage of dry storage is to utilize heat eliminating medium Natural Circulation to realize the cooling of spentnuclear fuel, and system architecture is brief, and shortcoming is that system cools is limited in one's ability, and radiomaterial contains ability, and system inherent safety is low.
Summary of the invention
For the defect existed in prior art, the object of this invention is to provide a kind of spent fuel storage module, this spent fuel storage module is applicable to dry type, wet type two kinds of banking systems, achieve modularization and the blocking of irradiated fuel store, improve the security of irradiated fuel store and the economy of nuclear power plant's operation.
For reaching above object, the technical solution used in the present invention is: a kind of spent fuel storage module, comprise the intermediate receptacle be located in reservoir module border and the fuel container be located in intermediate receptacle, reservoir module border is formed by reservoir module concrete body and highway wall connecting, and the spent fuel storage module being positioned at highway both sides is communicated with highway by the fuel access way be located on highway body of wall.
Further, the open top of reservoir module concrete body, inner bottom surface is provided with embedding reservoir module dish base plate wherein, and bottom has reservoir module water discharge line and reservoir module water discharge line isolation valve.
Further, the fuel access way place on highway body of wall is provided with fuel access way hydraulic gate.
Further again, intermediate receptacle is flat, hollow, uncovered can-like structure, and fuel container is test tube shape, and the top of intermediate receptacle and fuel container flushes; Outer lamellar spacing is formed, lamellar spacing in forming between intermediate receptacle and fuel container between intermediate receptacle and reservoir module concrete body; The alien invasion of intermediate receptacle is connected with facade elasticity in reservoir module concrete body by anti-seismic damper, and in it, facade is rigidly connected by fixation kit and fuel container.
Further, ring-type shower water distribution pipeline and spray distribution pipeline support is provided with in the upper end of intermediate receptacle is uncovered, some fuel container cooling sprays are distributed on ring-type shower water distribution pipeline, the axis of the oblique interior sensing fuel container (9) of water spraying direction, and supplied water by spray water supply line; The bottom of intermediate receptacle is provided with some intermediate receptacle drainage channels.
Further, the vertical tank body of intermediate receptacle near bottom surface is provided with several intermediate receptacle natural ventilation ports.
Further, the bottom surface of intermediate receptacle is provided with the Antishocking bearing assembly contacted with reservoir module dish base plate.
Further, this spent fuel storage module also comprises and is located at intermediate receptacle top cover in reservoir module border and fuel container upper cover, form chimney effect region between intermediate receptacle top cover and fuel container upper cover, fuel container upper cover and fuel container form spentnuclear fuel and close storage unit.
Further, intermediate receptacle top cover is bottomless, uncovered can-like structure, and its upper semisection is in contracting shoulder shape, and its tank diameter is equal with the tank diameter of intermediate receptacle.
Further, fuel container upper cover is provided with water level in container and regulates pipeline and vessel empty pipeline.
Beneficial effect of the present invention is:
The first, spent fuel storage module provided by the invention is applicable to dry type, banking system that wet type is different.
The second, the storage of spentnuclear fuel achieves modularization and blocking, and reservoir module adopts integrated seismic design, altogether because accident risk reduces.
Three, the long-term cooling of spentnuclear fuel utilizes non-active natural convection air, and the risk losing cooling power reduces greatly.
Four, reservoir module only at the period water-filling that reloads, need be run water circulation cooling, economy of power plant is promoted.
Five, the complete envelope radiomaterial of fuel container, avoids lasting desalination and purification.
Six, the water source in reservoir module is in stand-by state for a long time, can be used as emergent water source and improves nuclear power plant's overall security.
Accompanying drawing explanation
Fig. 1 is the vertical view being applicable to the spent fuel storage module of wet type banking system provided by the invention, and the reservoir module being wherein positioned at highway side only show the cross-sectional view at intermediate receptacle natural ventilation port place place on intermediate receptacle;
Fig. 2 be spent fuel storage module shown in Fig. 1 along A-A to longitudinal profile schematic diagram, wherein, in figure, omit fuel container and highway body of wall;
Fig. 3 is the longitudinal profile schematic diagram being applicable to the spent fuel storage module of dry storage mode provided by the invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
As shown in Figure 1, spent fuel storage module provided by the present invention comprises the intermediate receptacle 8 be located in reservoir module border and the fuel container 9 be located in intermediate receptacle 8, reservoir module border is formed by connecting by reservoir module concrete body 7 and highway body of wall 6, and the spent fuel storage module being positioned at highway 1 both sides is communicated with highway 1 by the fuel access way 5 be located on highway body of wall 6.Adopt this structural arrangement, make the storage of spentnuclear fuel achieve modularization and blocking.Consider the high radioactivity of spentnuclear fuel, reservoir module concrete body 7 and highway body of wall 6 utilize loaded concrete to shield, and shielding thickness is 500-4000mm.
As shown in Figure 2, the open top of reservoir module concrete body 7, inner bottom surface is provided with embedding reservoir module dish base plate 11 wherein, and inner bottom surface absolute altitude is lower than ground elevation around its place; The bottom of reservoir module concrete body 7 is provided with reservoir module water discharge line 16 and reservoir module water discharge line isolation valve 17.
Fuel access way 5 place is provided with fuel access way hydraulic gate 19, and its effect prevents the water in wet type banking system lower module from overflowing.
Intermediate receptacle 8 is flat, hollow, uncovered can-like structure, and fuel container 9 is in test tube shape, and storing fuel is placed wherein.
As shown in Figure 1, the spatial relationship in reservoir module of the present invention between each parts is such: form outer lamellar spacing 2 between intermediate receptacle 8 and reservoir module concrete body 7, the top of intermediate receptacle 8 and fuel container 9 flushes; Lamellar spacing 3 in forming between intermediate receptacle 8 and fuel container 9; The alien invasion of intermediate receptacle 8 is connected with the interior facade elasticity of reservoir module concrete body 7 by anti-seismic damper 13, and in it, facade is connected and fixed assembly 14 by fuel container and fuel container 9 is rigidly connected.
In the present invention, be provided with ring-type shower water distribution pipeline 23 and spray distribution pipeline support 25 in the upper end of intermediate receptacle 8 is uncovered, some fuel container cooling sprays 18 are distributed on ring-type shower water distribution pipeline 23, and are supplied water by spray water supply line 24; Further, ring-type shower water distribution pipeline 23 place plane is higher than the upper surface of fuel container 9, and the axis of the oblique interior sensing fuel container 9 of the water spraying direction of fuel container cooling spray 18.
The vertical tank body of intermediate receptacle 8 near bottom surface is provided with several intermediate receptacle natural ventilation ports 10, has portion size less and be arranged at higher absolute altitude in intermediate receptacle natural ventilation port 10.
The bottom of intermediate receptacle 8 is provided with some intermediate receptacle drainage channels 15.
In addition, the bottom surface of intermediate receptacle 8 is provided with the Antishocking bearing assembly 12 contacted with reservoir module dish base plate 11.Because reservoir module has modularization and blocking characteristic, and adopt integrated seismic design, thus altogether because accident risk reduces.
As shown in Figure 3, spent fuel storage module provided by the invention can also comprise and is located at intermediate receptacle top cover 20 in reservoir module border and fuel container upper cover 22, chimney effect region 21 is formed between intermediate receptacle top cover 20 and fuel container upper cover 22, fuel container upper cover 22 and fuel container 9 form spentnuclear fuel and close storage unit, thus form the spent fuel storage module being applicable to dry storage mode.
Intermediate receptacle top cover 20 is bottomless, uncovered can-like structure, and its upper semisection in contracting shoulder shape, thus makes its uncovered area be less than its end area of a circle; Further, the tank diameter of intermediate receptacle top cover 20 is equal with the tank diameter of intermediate receptacle 8, and thus, intermediate receptacle top cover 20 and intermediate receptacle 8 can be combined to the container of an opening.
The top of fuel container upper cover 22 is ellipticity, and lower semisection is tubular, and its barrel diameter is equal with the barrel diameter of fuel container 9 upper semisection, and spentnuclear fuel of the two composition is closed impermeability, the good thermal conductance that storage unit has a height and gone out characteristic.In the present invention, the material of fuel container 9 and fuel container upper cover 22 can select stainless steel, plow-steel or other metals according to the character of its internal working medium.After fuel container upper cover 22 and fuel container 9 are combined into one, can envelope radiomaterial completely, avoid lasting desalination and purification.
In addition, fuel container upper cover 22 to be also provided with in container water level and to regulate pipeline and vessel empty pipeline (not shown), in wet type, dry storage mode transfer process for water level in fuel metering container 9 and air emptying.
Under dry storage mode, the long-term cooling of spentnuclear fuel utilizes non-active air natural to circulate, and the risk that reservoir module can be made to lose cooling power reduces greatly.Natural Circulation passage comprises: as the annular inlet at the top, outer lamellar spacing 2 of natural ventilation air intake; As the outer lamellar spacing 2 of the cold passage of Natural Circulation; As the intermediate receptacle natural ventilation port 10 that cold passage is connected with the passage of heat; As the internal clearance 3 of the passage of heat; The chimney effect region 21 in space is produced as hot pressing.
The operation method being applicable to the spent fuel storage module of dry type and wet type banking system provided by the invention is illustrated below in conjunction with Fig. 1-3.
When running with wet type banking system, whole reservoir module is full of by water, fuel container upper cover 22 and intermediate receptacle top cover 20 are opened and are moved to suitable storing place, and fuel access way hydraulic gate 19 is opened in fuel input operation process, close when single storage unit cooling; The access cool cycles that is cooled through of reservoir module realizes, and access cool cycles can fuel container cooling spray 18 be water delivering orifice, with reservoir module water discharge line 16 for suction line.When fuel container cooling spray 18 is sprayed water, must can ensure to cover the spray of whole fuel container upper cover 22.
Carry out from wet type banking system to dry storage mode the process of transition, access cool cycles must continue, until reservoir module reaches dry storage condition.First transient process needs to carry out draining by reservoir module water discharge line 16 pairs of reservoir module, makes reservoir module water level decreasing to appropriate value.After draining to predetermined water level, making fuel container upper cover 22 fit with fuel container 9, regulating water level in pipeline adjustment fuel container 9 to appropriate value by being arranged at water level in the container on fuel container upper cover 22.After in fuel container 9, water level has adjusted, by the vessel empty pipeline be arranged on fuel container upper cover 22, air all in fuel container 9 are discharged.After emptying end, in the container in isolation fuel container 9, water level regulates pipeline and vessel empty pipeline.Now judge whether reservoir module reaches dry storage condition, if condition does not meet, then keeps external cool cycles until condition meets; After eligible, make intermediate receptacle top cover 20 fit with intermediate receptacle 8.Now, need carry out draining by reservoir module water discharge line 16 pairs of reservoir module, after the water in outer lamellar spacing 2 is emptying, remaining water relies on gravity emptying by intermediate receptacle drainage channel 15 by intermediate receptacle 8.After draining terminates, transient process completes.
When running in dry storage mode, fuel container 9 and fuel container upper cover 22 are formed closes storage unit, and this unit realizes cooling by air natural circulation.
Irradiated fuel store closed-cell after proceeding to dry storage mode, without special circumstances, storage unit will no longer be opened, until the outward transport performing storage of spent fuel.Before spentnuclear fuel outward transport, reservoir module needs to transit to wet type banking system from dry storage mode.Detailed process is: first carry out spraying cooling to storage unit, until storage unit parameter meets reservoir module flood condition; Access cool cycles, to uncap condition until storage unit meets storage unit, starts to carry out fuel outward transport operation.
If in dry storage process, there is the unexpected increasing temperature and pressure closing storage unit, by realizing its emergent cooling to the spray of storage unit.
Structure of the present invention is not limited to the embodiment described in embodiment, and those skilled in the art's technical scheme according to the present invention draws and other embodiment belongs to technological innovation scope of the present invention equally.
Claims (9)
1. a spent fuel storage module, it is characterized in that, comprise the intermediate receptacle (8) be located in reservoir module border and the fuel container (9) be located in intermediate receptacle (8), reservoir module border is formed by connecting by reservoir module concrete body (7) and highway body of wall (6), and the spent fuel storage module being positioned at highway (1) both sides is communicated with highway (1) by the fuel access way (5) be located on highway body of wall (6); Intermediate receptacle (8) is flat, hollow, uncovered can-like structure, ring-type shower water distribution pipeline (23) and spray distribution pipeline support (25) is provided with in the upper end of intermediate receptacle (8) is uncovered, some fuel container cooling sprays (18) are distributed on ring-type shower water distribution pipeline (23), the axis of the oblique interior sensing fuel container (9) of water spraying direction, and supplied water by spray water supply line (24); The bottom of intermediate receptacle (8) is provided with some intermediate receptacle drainage channels (15).
2. a kind of spent fuel storage module according to claim 1, it is characterized in that, the open top of reservoir module concrete body (7), inner bottom surface is provided with embedding reservoir module dish base plate (11) wherein, and bottom is provided with reservoir module water discharge line (16) and reservoir module water discharge line isolation valve (17).
3. a kind of spent fuel storage module according to claim 1 and 2, is characterized in that, fuel access way (5) place on highway body of wall (6) is provided with fuel access way hydraulic gate (19).
4. a kind of spent fuel storage module according to claim 3, is characterized in that, fuel container (9) is in test tube shape; Outer lamellar spacing (2) is formed, lamellar spacing (3) in forming between intermediate receptacle (8) and fuel container (9) between intermediate receptacle (8) and reservoir module concrete body (7); The alien invasion of intermediate receptacle (8) is connected with the interior facade elasticity of reservoir module concrete body (7) by anti-seismic damper (13), and the interior facade of intermediate receptacle (8) is rigidly connected by fixation kit (14) and fuel container (9).
5. a kind of spent fuel storage module according to claim 4, is characterized in that, the vertical tank body of intermediate receptacle (8) near bottom surface is provided with several intermediate receptacle natural ventilation ports (10).
6. a kind of spent fuel storage module according to claim 4, is characterized in that, the bottom surface of intermediate receptacle (8) is provided with the Antishocking bearing assembly (12) contacted with reservoir module dish base plate (11).
7. a kind of spent fuel storage module according to claim 1 or 4, it is characterized in that, this spent fuel storage module also comprises and is located at intermediate receptacle top cover (20) in reservoir module border and fuel container upper cover (22), intermediate receptacle top cover (20) and fuel container upper cover (22) form chimney effect region (21), and fuel container upper cover (22) and fuel container (9) form spentnuclear fuel and close storage unit.
8. a kind of spent fuel storage module according to claim 7, it is characterized in that, intermediate receptacle top cover (20) is bottomless, uncovered can-like structure, and its upper semisection is in contracting shoulder shape, and its tank diameter is equal with the tank diameter of intermediate receptacle (8).
9. a kind of spent fuel storage module according to claim 8, is characterized in that, fuel container upper cover (22) is provided with water level in container and regulates pipeline and vessel empty pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210447883.1A CN102982854B (en) | 2012-11-09 | 2012-11-09 | A kind of spent fuel storage module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210447883.1A CN102982854B (en) | 2012-11-09 | 2012-11-09 | A kind of spent fuel storage module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102982854A CN102982854A (en) | 2013-03-20 |
| CN102982854B true CN102982854B (en) | 2015-10-21 |
Family
ID=47856753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210447883.1A Active CN102982854B (en) | 2012-11-09 | 2012-11-09 | A kind of spent fuel storage module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102982854B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105304151B (en) * | 2015-09-17 | 2018-01-23 | 中广核工程有限公司 | A kind of spent nuclear fuel in nuclear power plant dry storage fuel tank |
| CN110867269B (en) * | 2019-11-27 | 2021-12-03 | 中广核工程有限公司 | Spent fuel dry-type storage vertical storage module |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11183694A (en) * | 1997-12-25 | 1999-07-09 | Mitsubishi Heavy Ind Ltd | Canister for storing spent fuel |
| JP2001091683A (en) * | 1999-09-27 | 2001-04-06 | Mitsubishi Heavy Ind Ltd | Spent fuel storage facilities |
| CN1345452A (en) * | 1999-03-30 | 2002-04-17 | 法国原子能委员会 | Installation for very long term storage of heat generating products such as nuclear waste |
| CN202178067U (en) * | 2011-07-29 | 2012-03-28 | 上海核工程研究设计院 | Improved dry storage module for heavy water reactor irradiated fuel |
| CN102412000A (en) * | 2011-10-18 | 2012-04-11 | 清华大学 | Vertical shaft storage system for spent fuel of nuclear power station |
-
2012
- 2012-11-09 CN CN201210447883.1A patent/CN102982854B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11183694A (en) * | 1997-12-25 | 1999-07-09 | Mitsubishi Heavy Ind Ltd | Canister for storing spent fuel |
| CN1345452A (en) * | 1999-03-30 | 2002-04-17 | 法国原子能委员会 | Installation for very long term storage of heat generating products such as nuclear waste |
| JP2001091683A (en) * | 1999-09-27 | 2001-04-06 | Mitsubishi Heavy Ind Ltd | Spent fuel storage facilities |
| CN202178067U (en) * | 2011-07-29 | 2012-03-28 | 上海核工程研究设计院 | Improved dry storage module for heavy water reactor irradiated fuel |
| CN102412000A (en) * | 2011-10-18 | 2012-04-11 | 清华大学 | Vertical shaft storage system for spent fuel of nuclear power station |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102982854A (en) | 2013-03-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204596431U (en) | Passive containment thermal conduction system and the pressurized water reactor with it | |
| CN206210405U (en) | Nuclear reactor safety system | |
| CN205177415U (en) | Active heat pipe cooling system of spent fuel pool of nuclear power plant non - | |
| CN104361914A (en) | Passive safe cooling system | |
| CN204242601U (en) | Non-passive safety cooling system | |
| CN102831942A (en) | Emergency cooling system of spent fuel pool of nuclear power station | |
| CN106251916A (en) | A kind of underground nuclear power station cavern type double containment | |
| CN103928069A (en) | Containment built-in spent fuel pool | |
| CN104934078A (en) | Passive containment cooling system keeping dynamic circulation of cooling water | |
| CN206210417U (en) | Dry type reactor heating system | |
| CN203131781U (en) | Single-tank heat accumulation and steam generation integrated device | |
| CN102982854B (en) | A kind of spent fuel storage module | |
| CN109065192A (en) | A kind of reactor building method for arranging | |
| CN103531256B (en) | The non-active cooling system of presurized water reactor prestressed concrete containment vessel | |
| CN103377738A (en) | Liquid-immersed spent fuel storage system | |
| CN203070791U (en) | Built-in spent fuel pool of containment | |
| CN208111094U (en) | A kind of cooling system | |
| CN104183283A (en) | Passive containment cooling-water storage tank based on design of external interference | |
| CN207945856U (en) | A kind of solar water heating system with evacuation and anti-freezing function | |
| CN207676666U (en) | A kind of band is connected to the passive double containment of lateral water tank up and down | |
| CN206191626U (en) | Kitchen flue gas waste heat utilization equipment | |
| KR101703710B1 (en) | Passive cooling system of spent nuclear fuel using heat pipe | |
| CN203950557U (en) | Fused mass gaseous-waste holdup system in heap after nuclear power plant accident | |
| CN107418882A (en) | The phase-change energy-storage solar methane-generating pit of hot-water heating system twin-stage self-loopa round the clock can be achieved | |
| CN2898724Y (en) | Efficient maintenance-free solar water heater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |