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WO2018108073A1 - Réservoir métallique de stockage et de transport de combustible usé de centrale nucléaire - Google Patents

Réservoir métallique de stockage et de transport de combustible usé de centrale nucléaire Download PDF

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Publication number
WO2018108073A1
WO2018108073A1 PCT/CN2017/115634 CN2017115634W WO2018108073A1 WO 2018108073 A1 WO2018108073 A1 WO 2018108073A1 CN 2017115634 W CN2017115634 W CN 2017115634W WO 2018108073 A1 WO2018108073 A1 WO 2018108073A1
Authority
WO
WIPO (PCT)
Prior art keywords
transportation
nuclear power
power plant
cover
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.)
Ceased
Application number
PCT/CN2017/115634
Other languages
English (en)
Chinese (zh)
Inventor
袁呈煜
杨锦春
王鑫
刘翠波
莫怀森
左永德
杨寿海
唐琼辉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China General Nuclear Power Corp
China Nuclear Power Engineering Co Ltd
Shenzhen China Guangdong Nuclear Engineering Design Co Ltd
Original Assignee
China General Nuclear Power Corp
China Nuclear Power Engineering Co Ltd
Shenzhen China Guangdong Nuclear Engineering Design Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by China General Nuclear Power Corp, China Nuclear Power Engineering Co Ltd, Shenzhen China Guangdong Nuclear Engineering Design Co Ltd filed Critical China General Nuclear Power Corp
Publication of WO2018108073A1 publication Critical patent/WO2018108073A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F5/00—Transportable or portable shielded containers
    • G21F5/005—Containers for solid radioactive wastes, e.g. for ultimate disposal
    • G21F5/008—Containers for fuel elements
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C19/00—Arrangements for treating, for handling, or for facilitating the handling of, fuel or other materials which are used within the reactor, e.g. within its pressure vessel
    • G21C19/02—Details of handling arrangements
    • G21C19/06—Magazines for holding fuel elements or control elements
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F5/00—Transportable or portable shielded containers
    • G21F5/06—Details of, or accessories to, the containers
    • 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

Definitions

  • the invention belongs to the field of dry storage and transportation of spent fuel in nuclear power plants, and more particularly to a dual-function metal can of spent fuel storage and transportation in a nuclear power plant.
  • the spent fuel that has just been discharged from the reactor is highly radioactive and calorific, so it is often necessary to cool the spent fuel pool in a nuclear power plant for 5 to 10 years before it is transferred to an intermediate storage facility.
  • the intermediate storage of spent fuel mainly includes wet and dry storage. Among them, dry storage has become the mainstream of the international intermediate fuel storage technology due to its high safety, economy and easy expansion.
  • the international dry storage technology for spent fuel mainly uses concrete storage systems.
  • the concrete storage system includes a concrete silo and a fuel storage tank, wherein the concrete silo provides shielding radiation and safety protection functions, and the heat inside the fuel storage tank is derived in a passive manner.
  • the main functions of the fuel tank are: providing sealing, containing radioactive materials, providing structural support for spent fuel assemblies, maintaining subcritical conditions of spent fuel assemblies, and shielding radiation.
  • the fuel storage tank is generally a cylindrical metal structure including a cylinder, an upper top cover, a bottom cover and a fuel basket, wherein the fuel basket is not removable.
  • the connection between the top cover and the casing is a redundant welded sealing structure.
  • the object of the present invention is to overcome the deficiencies of the prior art and to provide a dual-function metal canister for spent fuel storage and transportation in a nuclear power plant that can be used for both storage and transportation.
  • the present invention provides a nuclear power plant spent fuel storage and transportation dual function metal can, comprising a metal can body and a fuel basket housed in the metal can, wherein the metal can body comprises a casing and a sealing solid A base attached to the bottom of the housing, a top cover sealed to the top of the housing, and a redundant top cover secured to the housing.
  • the fuel basket is detachably housed in a metal can.
  • the casing comprises a cylinder body, a side support fixedly connected to the inner wall of the cylinder body, a lifting lug fixedly connected to the top of the cylinder body, and a fixed connection Drainage pipe support on the inner wall of the cylinder.
  • the side support is fixedly connected to the inner wall of the cylinder for supporting and protecting the fuel basket.
  • the base comprises a bottom plate and a lower support fixedly connected to the bottom plate.
  • the bottom plate is provided with a water collecting circular groove for discharging water in the metal can.
  • the top cover comprises a shielding cover, an upper support fixed to the shielding cover, an air inlet module fixed to the shielding cover, and fixed to the air inlet module Drain pipe module for the shield cover.
  • the shielding cover is provided with an air inlet hole and a drainage hole.
  • the air inlet module comprises an inflatable drainage hole sealing cover, an inflatable drainage quick connector and an inflation hole shielding block, and the lower end of the inflatable drainage quick connector and the shielding cover
  • the gas is passed through the intermediate passage of the pneumatic drain quick joint by means of circumferential welding, and the air inlet sealing cover is arranged at the top of the pneumatic drain quick joint and fixed at the air inlet hole of the shield cover.
  • the drain pipe module comprises an inflatable drainage hole sealing cover, a pneumatic drainage quick joint, a drainage hole shielding block and a drainage pipe, and an inflatable drainage quick joint lower end and a top
  • the cover is fixed by circumferential welding, and the drainage hole shielding block is disposed directly under the inflatable drainage quick connector and fixed at the lower end of the shielding cover.
  • the inflatable drainage hole sealing cover is disposed at the top of the inflatable drainage quick connector and is fixed at the drainage hole on the shielding cover.
  • the redundant top cover is a ring plate structure, and is formed by welding a plurality of curved plates.
  • the base, the top cover and the redundant bottom cover are sealingly welded to the casing.
  • the spent fuel storage and transportation dual-function metal can of the nuclear power plant of the present invention can be placed in a concrete or metal shielding container after loading the spent fuel assembly, thereby realizing long-term, safe and reliable storage of the spent fuel assembly; After storage for a period of time, the metal can be taken out and transferred to the spent fuel transport container to achieve safe transportation of the spent fuel assembly.
  • the fuel basket is detachably housed in the metal can, the fuel grid of different structural forms can be loaded, which has ideal versatility.
  • FIG. 1 is a schematic structural view of a dual-function metal can of spent fuel storage and transportation in a nuclear power plant of the present invention.
  • FIG. 2 is a cross-sectional view showing the dual-function metal can of spent fuel storage and transportation in a nuclear power plant of the present invention.
  • FIG. 3 is a partial cross-sectional view of the metal can body of FIG. 2.
  • Figure 4 is a cross-sectional view of the housing of Figure 3.
  • Figure 5 is a cross-sectional view of the drain pipe support and the cylinder of Figure 3.
  • Figure 6 is a schematic view of the base of Figure 3.
  • Figure 7 is a partial cross-sectional view showing the bottom of the metal can of Figure 3.
  • Figure 8 is a schematic view of the top cover of Figure 3.
  • Figure 9 is a partial cross-sectional view showing the region of the intake hole at the top of the metal can of Figure 8.
  • Figure 10 is a partial cross-sectional view showing the area of the drain pipe at the top of the metal can of Figure 8.
  • FIG. 11 is a schematic structural view of the redundant top cover of FIG. 3.
  • the dual-function metal canister for spent fuel storage and transportation of the nuclear power plant of the present invention comprises: a metal can body 1 and a fuel basket 2 housed in the metal can.
  • the metal can body 1 includes a housing 10, a base 12 sealed to the bottom of the housing 10, a top cover 14 sealed to the top of the housing 10, and a redundant top cover 16 sealed to the housing 10.
  • the fuel basket 2 is relatively independent from the metal can body 1 and is detachably mounted in the metal can body 1. Therefore, the fuel grid of different structural forms can be loaded, which has ideal versatility.
  • the housing 10 includes a barrel 100, side supports 102, lugs 104, and a drain support 106.
  • the side supports 102 are welded to the barrel 100 for supporting and adjusting the fuel basket 2.
  • the lifting lug 104 is welded to the top of the cylinder 100 for hoisting an empty metal can while supporting the top cover 14.
  • the drain pipe support 106 is welded to the inner wall of the cylinder 100 for supporting the drain pipe 156 on the top cover 14, so that the drain pipe 156 is installed and guided to prevent the drain pipe 156 from swinging.
  • the base 12 includes a bottom plate 120 and a lower support 122.
  • the lower support 122 is fixed to the bottom plate 120 by welding (or bolts).
  • the bottom plate 120 is provided with a water collecting circular groove 124 for discharging the water in the metal can.
  • the top cover 14 includes a shield cover 140, an upper support 142, an air intake module 144, and a drain module 146.
  • the upper support 142 is fixed to the shield cover 140 by welding (or bolts).
  • the shielding cover 140 is provided with an inflation hole and a drainage hole.
  • the air inlet module 144 is welded and fixed to the inflation hole of the shielding cover 140
  • the drain module 146 is welded and fixed to the drainage hole of the shielding cover 140.
  • the air intake aperture module 144 includes an inflatable drain seal cover 148, an inflatable drain quick connector 150, and an inflation aperture shield block 152.
  • the lower end of the inflatable drain quick connector 150 and the shield cover 140 are circumferentially welded to ensure that gas can only flow through the intermediate passage of the pneumatic drain quick connector 150.
  • an inflation hole shielding block 152 is fixedly welded to the lower end of the shielding cover 140.
  • an air inlet sealing cover 148 is disposed and welded to the shielding cover 140.
  • a weld seal is formed with the shield cover 140 and the weld of the barrel 100.
  • the drain module 146 includes an inflatable drain seal cover 148, an inflatable drain quick coupler 150, a drain hole shield block 154, and a drain 156.
  • the lower end of the inflatable drain quick connector 150 and the shield cover 140 are circumferentially welded to ensure that the discharged water can only flow through the intermediate passage of the pneumatic drain quick connector 150.
  • a drain hole shielding block 154 is welded and fixed to the lower end of the shielding cover 140 directly under the inflatable drain quick connector 150.
  • An air inlet sealing cover 148 is disposed on the top of the pneumatic drainage quick connector 150, and the air inlet sealing cover 148 is welded to the shielding cover. Plate 140, with shield cover 140 and cylinder 100 The weld seam forms the first seal boundary.
  • the redundant top cover 16 is a ring plate structure.
  • the redundant top cover 16 can be welded by using a plurality of curved plates.
  • the redundant top cover 16 and the cylinder 100 are welded and fixed to form a second sealing barrier on the top of the metal can.
  • the spent fuel storage and transportation dual-function metal can of the nuclear power plant of the present invention can be placed in a concrete or metal shielding container after loading the spent fuel assembly, thereby realizing Long-term, safe and reliable storage of spent fuel assemblies; after storage in a shielded container for a period of time, the metal cans can be removed and transferred to a spent fuel transport container for transport to a designated location (eg, a reprocessing plant) to achieve a spent fuel assembly Safe transportation.
  • a designated location eg, a reprocessing plant
  • the fuel basket is detachably housed in the metal can, the fuel grid of different structural forms can be loaded, which has ideal versatility.
  • the structure of the metal can may also undergo one or more of the following changes: 1) canceling the upper support; 2) canceling the lower support; 3) dividing the shielding cover into several Layer cover; 4) The structural form and number of side supports are provided as needed.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Plasma & Fusion (AREA)
  • Rigid Containers With Two Or More Constituent Elements (AREA)
  • Monitoring And Testing Of Nuclear Reactors (AREA)

Abstract

L'invention concerne un réservoir métallique de stockage et de transport de combustible usé de centrale nucléaire, qui comprend un réservoir métallique (1) et un panier à combustible (2) logé de manière amovible dans le réservoir métallique. Le réservoir métallique (1) comprend : un boîtier (10); une base (12) hermétiquement scellée et fixée au niveau d'une partie inférieure du boîtier (10); un couvercle supérieur (14) hermétiquement fermé et fixé au niveau d'une partie supérieure du boîtier (10); et un couvercle supérieur redondant (16) hermétiquement scellé et fixé sur le boîtier (10). Par rapport à l'état de la technique, le réservoir métallique de stockage et de transport de combustible usé de centrale nucléaire résout des problèmes de stockage en toute sécurité de combustible usé et de transport ultérieur du combustible usé, réalisant un stockage sûr à long terme et un transport du combustible usé. De plus, étant donné que le panier à combustible (2) est logé de manière amovible dans le réservoir métallique, le panier à combustible (2) peut être utilisé pour charger des cadres de combustible ayant différentes structures, offrant une universalité.
PCT/CN2017/115634 2016-12-12 2017-12-12 Réservoir métallique de stockage et de transport de combustible usé de centrale nucléaire Ceased WO2018108073A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201611136933.9A CN106448783A (zh) 2016-12-12 2016-12-12 核电厂乏燃料贮运双功能金属罐
CN201611136933.9 2016-12-12

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WO2018108073A1 true WO2018108073A1 (fr) 2018-06-21

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WO (1) WO2018108073A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110415853A (zh) * 2019-06-25 2019-11-05 中广核工程有限公司 后处理厂乏燃料组件贮运吊篮
CN111667936A (zh) * 2020-07-21 2020-09-15 上海阿波罗机械股份有限公司 一种新型乏燃料贮存吊篮
CN111933325A (zh) * 2020-07-23 2020-11-13 中国核电工程有限公司 盖结构及运输容器
CN114188060A (zh) * 2021-10-27 2022-03-15 中国原子能科学研究院 一种破损乏燃料组件的密封焊接处理方法

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106448783A (zh) * 2016-12-12 2017-02-22 深圳中广核工程设计有限公司 核电厂乏燃料贮运双功能金属罐
CN108335765B (zh) * 2018-01-29 2021-03-12 中广核工程有限公司 核电厂乏燃料干式贮存用燃料贮罐
CN108899097A (zh) * 2018-07-17 2018-11-27 西安交通大学 一种乏燃料储运容器充气排水装置
CN109545410B (zh) * 2018-12-12 2020-09-25 深圳中广核工程设计有限公司 立式、卧式贮存两用乏燃料贮罐
CN112820436A (zh) * 2021-01-07 2021-05-18 上海核工程研究设计院有限公司 一种贮存密封装置及转运维护方法
CN113808770A (zh) * 2021-08-10 2021-12-17 中国核电工程有限公司 一种用于乏燃料组件贮存和运输的密封容器
CN115156668B (zh) * 2022-07-28 2023-06-23 中国核动力研究设计院 一种乏燃料密封贮存容器焊接方法
CN117410000A (zh) * 2023-10-30 2024-01-16 上海核工程研究设计院股份有限公司 高燃耗乏燃料贮运系统

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JP2001235582A (ja) * 2000-02-23 2001-08-31 Toshiba Corp 使用済燃料等の乾式輸送，貯蔵用キャスク
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CN103065696A (zh) * 2012-12-21 2013-04-24 清华大学 乏燃料干式贮存装置
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CN106448783A (zh) * 2016-12-12 2017-02-22 深圳中广核工程设计有限公司 核电厂乏燃料贮运双功能金属罐

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JPH0659085A (ja) * 1992-08-12 1994-03-04 Mitsui Eng & Shipbuild Co Ltd 使用済燃料集合体の未臨界度測定システム及び未臨界度測定方法
JP2001235582A (ja) * 2000-02-23 2001-08-31 Toshiba Corp 使用済燃料等の乾式輸送，貯蔵用キャスク
US20030198313A1 (en) * 2002-04-19 2003-10-23 Mccoy John Kevin Thermal shunts and method for dry storage of spent nuclear fuel
CN103065696A (zh) * 2012-12-21 2013-04-24 清华大学 乏燃料干式贮存装置
CN104167232A (zh) * 2014-08-19 2014-11-26 中兴能源装备有限公司 一种乏燃料干式贮存装置
CN106448783A (zh) * 2016-12-12 2017-02-22 深圳中广核工程设计有限公司 核电厂乏燃料贮运双功能金属罐

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110415853A (zh) * 2019-06-25 2019-11-05 中广核工程有限公司 后处理厂乏燃料组件贮运吊篮
CN111667936A (zh) * 2020-07-21 2020-09-15 上海阿波罗机械股份有限公司 一种新型乏燃料贮存吊篮
CN111933325A (zh) * 2020-07-23 2020-11-13 中国核电工程有限公司 盖结构及运输容器
CN114188060A (zh) * 2021-10-27 2022-03-15 中国原子能科学研究院 一种破损乏燃料组件的密封焊接处理方法

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