CN105405482A - Fuel storage grid with replaceable neutron absorption materials - Google Patents
Fuel storage grid with replaceable neutron absorption materials Download PDFInfo
- Publication number
- CN105405482A CN105405482A CN201511017060.5A CN201511017060A CN105405482A CN 105405482 A CN105405482 A CN 105405482A CN 201511017060 A CN201511017060 A CN 201511017060A CN 105405482 A CN105405482 A CN 105405482A
- Authority
- CN
- China
- Prior art keywords
- neutron
- base plate
- screen work
- absorber material
- die cavity
- 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.)
- Pending
Links
Classifications
-
- 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
- G21C19/07—Storage racks; Storage pools
-
- 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
-
- 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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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Combined Means For Separation Of Solids (AREA)
Abstract
The invention provides a fuel storage grid with replaceable neutron absorption materials. The fuel storage grid comprises a cavity assembly, which comprises at least two cavities; a neutron absorption assembly, which is inserted between two adjacent cavities; a base plate, which is located below the neutron absorption assembly and welded with the cavity assembly; and a supporting foot, which is located below the base plate and detachably connected with the base plate through a nut and a stud. The fuel storage grid with replaceable neutron absorption materials provided by the invention has the advantages of firm structure, easiness in processing, small welding amount and easily controllable welding deformation.
Description
Technical field
The present invention relates to a kind of bunkering screen work of changeable type neutron absorber material.
Background technology
Spent fuel storage rack mainly provides storage space for the irradiated fuel assembly drawing off reactor core, need ensure that the fuel assembly deposited can meet criticality safety requirement under various accident conditions.
For depositing and protecting the bunkering screen work body construction of fuel assembly; not only to ensure sufficient intensity, reliability, be beneficial to convection current cooling; also to be easy to processing, reduce welding deformation, also should adapt to the Spent Fuel Pool of various storage capacity and dimensional requirement simultaneously.
In the fabrication process, ubiquity welding capacity is large, difficulty is high, and storage chamber easily produces distortion for current all kinds of spent fuel storage racks, neutron absorber material in screen work such as cannot to change at the problem, in addition, some storage screen work also needs to process multiple parts, causes manufacturing process complicated.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, propose a kind of bunkering screen work of changeable type neutron absorber material.
The bunkering screen work of changeable type neutron absorber material comprises:
Die cavity subassembly; Described lumen type subassembly is provided with at least two die cavities;
Neutron-absorbing assembly; Described neutron-absorbing assembly is inserted between two adjacent die cavities;
Base plate; Described base plate is positioned at the below of described neutron-absorbing assembly; Weld with the lower end of described die cavity subassembly;
Support foot; Described support foot is positioned at the below of described base plate, is removably connected by nut and stud and described base plate.
Preferably, described die cavity subassembly adopts L-type angle steel assembly welding to be spliced to form.
Preferably, also compacting part is comprised; Described compacting part is welded on described die cavity top, for described neutron-absorbing assembly is fixed on described die cavity subassembly.
Preferably, described base plate offers discharge orifice, is convenient to convection current cooling.
Preferably, the top of described neutron-absorbing assembly is provided with triangle orienting lug, and described triangle orienting lug can be used as the targeting port of bunkering screen work.
Compared with prior art, the present invention has following beneficial effect:
1, the bunkering screen work of changeable type neutron absorber material provided by the invention, adopt L-type corrosion resistant plate assembly welding forming cavity subassembly, and be spliced into frame structure body, not only sound construction, and be easy to processing, welding capacity is little, and welding deformation is easy to control.
2, the bunkering screen work of changeable type neutron absorber material provided by the invention, neutron absorber can be changed separately, reduces costs.
3, the bunkering screen work of changeable type neutron absorber material provided by the invention, can adapt to various storage chamber spacing and fuel pit screen work is arranged.
Accompanying drawing explanation
Fig. 1 is the front elevation of the bunkering screen work of the changeable type neutron absorber material meeting the preferred embodiment of the present invention.
The A-A cut-open view that Fig. 2 is structure shown in Fig. 1.
Fig. 3 is the partial enlarged drawing of structure shown in Fig. 1.
Fig. 4 is the schematic diagram of the die cavity subassembly meeting the preferred embodiment of the present invention.
Embodiment
For enabling above-mentioned purpose of the present invention, feature and advantage become apparent more, and below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
As Figure 1-4, the bunkering screen work of changeable type neutron absorber material comprises:
Die cavity subassembly 1; Described lumen type subassembly 1 is provided with at least two die cavities 11;
Neutron-absorbing assembly 2; Described neutron-absorbing assembly 2 is inserted between two adjacent die cavities 11;
Base plate 3; Described base plate 3 is positioned at the below of described neutron-absorbing assembly 2; Weld with the lower end of described die cavity subassembly 1;
Support foot 4; Described support foot 4 is positioned at the below of described base plate 3, is removably connected with described base plate 3 by nut and stud 5.
Preferably, described die cavity subassembly 1 adopts L-type angle steel assembly welding to be spliced to form.
Preferably, also compacting part is comprised; Described compacting part is welded on described die cavity top, for described neutron-absorbing assembly is fixed on described die cavity subassembly.
Preferably, described base plate offers discharge orifice, is convenient to convection current cooling.
Preferably, the top of described neutron-absorbing assembly 2 is provided with triangle orienting lug 21, and described triangle orienting lug 21 can be used as the targeting port of bunkering screen work.
Compared with prior art, the present invention has following beneficial effect:
1, the bunkering screen work of changeable type neutron absorber material provided by the invention, adopt L-type corrosion resistant plate assembly welding forming cavity subassembly, and be spliced into frame structure body, not only sound construction, and be easy to processing, welding capacity is little, and welding deformation is easy to control.
2, the bunkering screen work of changeable type neutron absorber material provided by the invention, neutron absorber can be changed separately, reduces costs.
3, the bunkering screen work of changeable type neutron absorber material provided by the invention, can adapt to various storage chamber spacing and fuel pit screen work is arranged.
In this instructions, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.For system disclosed in embodiment, owing to corresponding to the method disclosed in Example, so description is fairly simple, relevant part illustrates see method part.
Those skilled in the art can use distinct methods to realize described function to each specifically should being used for, but this realization should not thought and exceeds scope of the present invention.
Obviously, those skilled in the art can carry out various change and modification to invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (5)
1. a bunkering screen work for changeable type neutron absorber material, is characterized in that, comprising:
Die cavity subassembly; Described lumen type subassembly is provided with at least two die cavities;
Neutron-absorbing assembly; Described neutron-absorbing assembly is inserted between two adjacent die cavities;
Base plate; Described base plate is positioned at the below of described neutron-absorbing assembly; Weld with the lower end of described die cavity subassembly;
Support foot; Described support foot is positioned at the below of described base plate, is removably connected by nut and stud and described base plate.
2. the bunkering screen work of changeable type neutron absorber material as claimed in claim 1, is characterized in that, described die cavity subassembly adopts L-type angle steel assembly welding to be spliced to form.
3. the bunkering screen work of changeable type neutron absorber material as claimed in claim 1, is characterized in that, also comprise compacting part; Described compacting part is welded on described die cavity top, for described neutron-absorbing assembly is fixed on described die cavity subassembly.
4. the bunkering screen work of changeable type neutron absorber material as claimed in claim 1, it is characterized in that, described base plate offers discharge orifice.
5. the bunkering screen work of changeable type neutron absorber material as claimed in claim 1, it is characterized in that, the top of described neutron-absorbing assembly is provided with triangle orienting lug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511017060.5A CN105405482A (en) | 2015-12-29 | 2015-12-29 | Fuel storage grid with replaceable neutron absorption materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511017060.5A CN105405482A (en) | 2015-12-29 | 2015-12-29 | Fuel storage grid with replaceable neutron absorption materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105405482A true CN105405482A (en) | 2016-03-16 |
Family
ID=55470916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511017060.5A Pending CN105405482A (en) | 2015-12-29 | 2015-12-29 | Fuel storage grid with replaceable neutron absorption materials |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105405482A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109243645A (en) * | 2018-09-13 | 2019-01-18 | 中国核动力研究设计院 | A kind of irradiated fuel assembly storage screen work |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4366115A (en) * | 1979-08-07 | 1982-12-28 | Schlumpf Raymond Jacques | Storage rack for assemblages of nuclear fuel elements |
| US4857263A (en) * | 1983-03-01 | 1989-08-15 | Westinghouse Electric Corp. | Storage of spent nuclear fuel |
| US4948553A (en) * | 1983-03-01 | 1990-08-14 | Westinghouse Electric Corp. | Method of making a rack for the storage of spent nuclear fuel |
| US5245641A (en) * | 1981-12-22 | 1993-09-14 | Westinghouse Electric Corp. | Spent fuel storage rack |
| CN102460599A (en) * | 2009-04-10 | 2012-05-16 | 株式会社东芝 | Used-fuel storage rack |
| CN102737741A (en) * | 2012-07-12 | 2012-10-17 | 中广核工程有限公司 | Spent fuel storage framework of nuclear power plant |
| US20130343503A1 (en) * | 2012-06-22 | 2013-12-26 | Holtec International, Inc. | Snap-in insert for reactivity control in spent nuclear fuel pools and casks |
| CN204301712U (en) * | 2014-12-29 | 2015-04-29 | 中核核电运行管理有限公司 | A kind of measurement mechanism storing screen work gap for detecting spentnuclear fuel |
| CN205334974U (en) * | 2015-12-29 | 2016-06-22 | 上海核工程研究设计院 | Removable formula neutron absorbing material's fuel storage screen work |
-
2015
- 2015-12-29 CN CN201511017060.5A patent/CN105405482A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4366115A (en) * | 1979-08-07 | 1982-12-28 | Schlumpf Raymond Jacques | Storage rack for assemblages of nuclear fuel elements |
| US5245641A (en) * | 1981-12-22 | 1993-09-14 | Westinghouse Electric Corp. | Spent fuel storage rack |
| US4857263A (en) * | 1983-03-01 | 1989-08-15 | Westinghouse Electric Corp. | Storage of spent nuclear fuel |
| US4948553A (en) * | 1983-03-01 | 1990-08-14 | Westinghouse Electric Corp. | Method of making a rack for the storage of spent nuclear fuel |
| CN102460599A (en) * | 2009-04-10 | 2012-05-16 | 株式会社东芝 | Used-fuel storage rack |
| US20130343503A1 (en) * | 2012-06-22 | 2013-12-26 | Holtec International, Inc. | Snap-in insert for reactivity control in spent nuclear fuel pools and casks |
| CN102737741A (en) * | 2012-07-12 | 2012-10-17 | 中广核工程有限公司 | Spent fuel storage framework of nuclear power plant |
| CN204301712U (en) * | 2014-12-29 | 2015-04-29 | 中核核电运行管理有限公司 | A kind of measurement mechanism storing screen work gap for detecting spentnuclear fuel |
| CN205334974U (en) * | 2015-12-29 | 2016-06-22 | 上海核工程研究设计院 | Removable formula neutron absorbing material's fuel storage screen work |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109243645A (en) * | 2018-09-13 | 2019-01-18 | 中国核动力研究设计院 | A kind of irradiated fuel assembly storage screen work |
| CN109243645B (en) * | 2018-09-13 | 2022-03-01 | 中国核动力研究设计院 | Spent fuel assembly storage grillwork |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
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Application publication date: 20160316 |