CN104700905B - One kind carries boron monolithic devices and discrete type combination burnable poison fuel assembly - Google Patents
One kind carries boron monolithic devices and discrete type combination burnable poison fuel assembly Download PDFInfo
- Publication number
- CN104700905B CN104700905B CN201510086638.6A CN201510086638A CN104700905B CN 104700905 B CN104700905 B CN 104700905B CN 201510086638 A CN201510086638 A CN 201510086638A CN 104700905 B CN104700905 B CN 104700905B
- Authority
- CN
- China
- Prior art keywords
- burnable poison
- boron
- discrete type
- poison
- rod
- 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
- 231100000614 poison Toxicity 0.000 title claims abstract description 100
- 239000002574 poison Substances 0.000 title claims abstract description 91
- 239000000446 fuel Substances 0.000 title claims abstract description 79
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 title claims abstract description 43
- 229910052796 boron Inorganic materials 0.000 title claims abstract description 43
- 239000008188 pellet Substances 0.000 claims abstract description 26
- 239000002131 composite material Substances 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 6
- 239000011159 matrix material Substances 0.000 claims abstract description 6
- 239000007787 solid Substances 0.000 claims description 13
- 239000000126 substance Substances 0.000 claims description 10
- 230000007096 poisonous effect Effects 0.000 claims description 9
- 238000005253 cladding Methods 0.000 claims description 6
- 125000006850 spacer group Chemical group 0.000 claims description 6
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- 229910052726 zirconium Inorganic materials 0.000 claims description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 4
- 229910052593 corundum Inorganic materials 0.000 claims description 4
- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 4
- 238000010304 firing Methods 0.000 claims description 3
- 238000002485 combustion reaction Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 238000004663 powder metallurgy Methods 0.000 claims description 2
- 230000009257 reactivity Effects 0.000 abstract description 17
- 229910052778 Plutonium Inorganic materials 0.000 abstract description 4
- OYEHPCDNVJXUIW-UHFFFAOYSA-N plutonium atom Chemical compound [Pu] OYEHPCDNVJXUIW-UHFFFAOYSA-N 0.000 abstract description 4
- 229910045601 alloy Inorganic materials 0.000 abstract description 3
- 239000000956 alloy Substances 0.000 abstract description 3
- 229910044991 metal oxide Inorganic materials 0.000 abstract description 2
- 150000004706 metal oxides Chemical class 0.000 abstract description 2
- 229910007948 ZrB2 Inorganic materials 0.000 abstract 1
- VWZIXVXBCBBRGP-UHFFFAOYSA-N boron;zirconium Chemical compound B#[Zr]#B VWZIXVXBCBBRGP-UHFFFAOYSA-N 0.000 abstract 1
- 239000000203 mixture Substances 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 229910052580 B4C Inorganic materials 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 229910052691 Erbium Inorganic materials 0.000 description 2
- 229910052688 Gadolinium Inorganic materials 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 2
- UYAHIZSMUZPPFV-UHFFFAOYSA-N erbium Chemical compound [Er] UYAHIZSMUZPPFV-UHFFFAOYSA-N 0.000 description 2
- UIWYJDYFSGRHKR-UHFFFAOYSA-N gadolinium atom Chemical compound [Gd] UIWYJDYFSGRHKR-UHFFFAOYSA-N 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- RZVAJINKPMORJF-UHFFFAOYSA-N Acetaminophen Chemical compound CC(=O)NC1=CC=C(O)C=C1 RZVAJINKPMORJF-UHFFFAOYSA-N 0.000 description 1
- 229910001093 Zr alloy Inorganic materials 0.000 description 1
- KRJBVTKYLBPUJC-UHFFFAOYSA-N [B+3].[O-2].[Al+3].[O-2].[O-2] Chemical compound [B+3].[O-2].[Al+3].[O-2].[O-2] KRJBVTKYLBPUJC-UHFFFAOYSA-N 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- 239000005388 borosilicate glass Substances 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- ZXGIFJXRQHZCGJ-UHFFFAOYSA-N erbium(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Er+3].[Er+3] ZXGIFJXRQHZCGJ-UHFFFAOYSA-N 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- CMIHHWBVHJVIGI-UHFFFAOYSA-N gadolinium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[Gd+3].[Gd+3] CMIHHWBVHJVIGI-UHFFFAOYSA-N 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000005297 pyrex Substances 0.000 description 1
- 229910001404 rare earth metal oxide Inorganic materials 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
Classifications
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C3/00—Reactor fuel elements and their assemblies; Selection of substances for use as reactor fuel elements
- G21C3/02—Fuel elements
- G21C3/04—Constructional details
- G21C3/16—Details of the construction within the casing
- G21C3/18—Internal spacers or other non-active material within the casing, e.g. compensating for expansion of fuel rods or for compensating excess reactivity
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C3/00—Reactor fuel elements and their assemblies; Selection of substances for use as reactor fuel elements
- G21C3/02—Fuel elements
- G21C3/04—Constructional details
- G21C3/16—Details of the construction within the casing
- G21C3/20—Details of the construction within the casing with coating on fuel or on inside of casing; with non-active interlayer between casing and active material with multiple casings or multiple active layers
-
- 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 invention discloses one kind to carry boron monolithic devices and discrete type combination burnable poison fuel assembly, the fuel assembly includes pellet surface coated with the monolithic devices burnable poison fuel rod for carrying boron burnable poison and carries boron discrete type burnable poison rod, may also include the fuel rod of no burnable poison.The composite combustible poison core block of the discrete type burnable poison material selection boracic；Metal oxide such as Al can be selected in its matrix phase2O3, or alloy such as Zr 2, Zr 4；Disperse phase is boride, such as B4C、ZrB2, BN etc..The burnable poison fuel assembly of the present invention can for a long time, smoothly suppress reactive in as far as possible low level, while residual reactivity punishment is minimized, solve the constraint that long period is reloaded, low soluble boron reactor core, load plutonium fuel are arranged to the demand and control rod operation control model of reactor core reactivity control to burnable poison.
Description
Technical field
The invention belongs to presurized water reactor burnable poison fuel area, and in particular to one kind carries boron monolithic devices and discrete type combination can
Fire poisonous substance fuel assembly.
Background technology
PWR fuel assembly is generally (logical according to certain geometrical rule by more fuel rods and guide pipe, gauge pipe
Often it is square, hexagon) rearrange.In order to illustrate, Fig. 1 shows PWR Fuel of the grid by 15 × 15 arrangements
Component, it is made up of 204 fuel rods, 20 guide pipes and 1 gauge pipe (being located at fuel assembly middle)；The fuel rod by
Multiple cylindrical types for being superimposed vertically are solid or the hollow fuel pellet of cylindrical type, air cavity holddown spring and provide support and cladding is made
Cladding tubes, end plug composition.
Pressurized water reactor generally use solid combustible poisonous substance, jointly control and add the mode controls such as boric acid solution in rod, cooling agent
Reactor core reactivity and power distribution processed, to meet the needs of reactor longtime running.
The wide variety of solid combustible poisonous substance of presurized water reactor is broadly divided into two classes at present, and a generic discrete type is another kind of with firing
Material is combined together, referred to as monolithic devices.Discrete type burnable poison mainly has the borosilicate glass being included in stainless steel cladding
Glass pipe (abbreviation Pyrex) and the water flowing ring being made up of cyclic aluminum oxide-boron carbide core bag in two layers of concentric zirconium alloy pipe
Shape burnable absorber rod (abbreviation WABA), in the guide pipe for the fuel assembly for being usually placed in no control rod.Monolithic devices is flammable poison
Thing has two kinds, first, with zirconium boride (ZrB2) thin layer coated in the integrated fuel burnable absorber on fuel pellet surface (referred to as
IFBA), second, rare earth oxide, such as gadolinium oxide (Gd2O3) or erbium oxide (Er2O3) sintered body of the disperse in fuel.
The design object and feature of advanced pressurized water reactor, it is not only higher to fuel assembly performance requirement, and make it that solid can
Firing effect of the poisonous substance in reactor core becomes particularly important.Further to improve heap core performance and reducing operating cost, it is necessary to will be anti-
Answering property is long-term, smoothly suppresses in as far as possible low level, while minimizes residual reactivity punishment.Long period reloads, it is low can
Molten boron reactor core, the application for carrying plutonium fuel so that the initial residual reactivity of reactor core is bigger, can so providing sufficient amount of solid
Poisonous substance is fired to meet that reactive demand for control is essential.Control model is run instead of traditional using control rod to realize
Chemical shimming (regulation boron concentration) carries out short-term reactor core reactivity and power distribution controls, greater number of fuel stack in reactor core
Part position will arrange control rod, restrict the arrangement of burnable poison, so being the outstanding problem that must be solved.
Therefore, to meet the design object of advanced pressurized water reactor and improve heap core performance, it is necessary to improve existing solid combustible poison
Thing, solves above-mentioned global question.
The content of the invention
It is an object of the invention to provide a kind of burnable poison fuel assembly, can for a long time, smoothly suppress reactive
Low level as far as possible, while residual reactivity punishment is minimized, solution long period reloads, low soluble boron reactor core, load plutonium fuel
The constraint that demand and control rod operation control model to reactor core reactivity control are arranged to burnable poison.
In order to realize the above object the present invention uses following technical scheme：
One kind load boron monolithic devices and discrete type combination burnable poison fuel assembly, including pellet surface are flammable coated with boron is carried
The monolithic devices burnable poison fuel rod and load boron discrete type burnable poison rod of poisonous substance.
Further, load boron monolithic devices and discrete type the combination burnable poison fuel assembly may also include no burnable poison
Fuel rod.
Preferably, the load boron burnable poison of the pellet surface coating in the monolithic devices burnable poison fuel rod is boronation
Zirconium.
Further, the boron discrete type burnable poison rod that carries includes combustible poison core block, the air cavity holddown spring of boracic
And provide cladding tubes, the end plug of support and coating function.
Further, the load boron discrete type burnable poison rod is disposed in the position of fuel rod lattice cell.
Preferably, the load boron discrete type burnable poison rod is clamped by the grid spacer of fuel assembly, is fixed in lattice cell.
Preferably, the composite combustible poison core block of the discrete type burnable poison material selection boracic；Its matrix phase
Metal oxide such as Al can be selected2O3, or alloy such as Zr-2, Zr-4；Disperse phase is boride, such as B4C、ZrB2, BN etc..Choose
Any of the above-described kind of matrix phase and any disperse phase mix according to certain proportion, and pellet is made by powder metallurgy process.
Further, the shape of above-mentioned boracic composite combustible poison core block can be the solid pellet of cylindrical type or cylindrical type
Coring pellet, concrete shape is depending on Nuclear design requirement.
When disperse phase selects B4C, matrix phase select Al2O3Form B4C-Al2O3During combustible poison core block, after pellet sintering
Density is the 60%~95% of solid density, wherein B4Between 2%~50%, specific density and ratio regard C mass percents
Nuclear design requirement is allocated.
When disperse phase selects B4C, matrix phase is from Zr-4 alloys composition B4During C-Zr combustible poison core blocks, wherein B4C mass
Percentage between 1%~20%, depending on Nuclear design requirement allocated by specific density and ratio.
The invention provides one kind to carry boron monolithic devices and discrete type combination burnable poison fuel assembly.Using the burnable poison
It fuel assembly, can for a long time, smoothly suppress reactive in as far as possible low level, while make residual reactivity punishment minimum
Change, solve long period is reloaded, low soluble boron reactor core, load plutonium fuel are controlled reactor core reactivity demand and control rod operation control
The constraint that molding formula is arranged to burnable poison.
Brief description of the drawings
Fig. 1 is simplified PWR fuel assembly grid arrangement schematic diagram；In figure,For guide pipe or gauge pipe,For
Fuel rod.
Fig. 2 is the structural representation of the fuel assembly of the present invention；For the figure using intermediate symmetry line as boundary, right half part is section view
Figure；
Fig. 3 is the vertical view cutaway view Amplified image of spacer grid of fuel assembly external and internal compositionses in Fig. 2；
Fig. 4 is the grid arrangement schematic diagram of the embodiment of the present invention 1；In figure,For guide pipe or gauge pipe,For pellet
Monolithic devices burnable poison fuel rod of the surface coated with load boron burnable poison,To carry boron discrete type burnable poison rod；
Fig. 5 is the structural representation of the load boron discrete type burnable poison rod of the embodiment of the present invention 1；
Fig. 6 is the embodiment of the present invention 1, carries gadolinium monolithic devices burnable poison fuel assembly and carry the combustion of erbium monolithic devices burnable poison
Expect the curve map that the reactivity of component changes with burnup.
Fig. 7 is the grid arrangement schematic diagram of the embodiment of the present invention 2；In figure,For guide pipe or gauge pipe,For pellet
Monolithic devices burnable poison fuel rod of the surface coated with load boron burnable poison,To carry boron discrete type burnable poison rod；Can not
Fire the fuel rod of poisonous substance.
Embodiment
Fig. 2 is the structural representation for carrying boron monolithic devices and discrete type and combining burnable poison fuel assembly of the present invention, 1 in figure
It is the grid spacer of fuel assembly for the guide pipe of fuel assembly, 5；Fig. 3 is that external and internal compositionses of the Fig. 2 at grid spacer 5 are overlooked
Cutaway view Amplified image.Load boron monolithic devices and discrete type the combination burnable poison fuel assembly includes pellet surface can coated with load boron
Fire the monolithic devices burnable poison fuel rod 2 of poisonous substance and be arranged in the load boron discrete type burnable poison rod 3 of fuel rod position, in addition should
Carry boron monolithic devices and discrete type combination burnable poison fuel assembly may also include the fuel rod 4 of no burnable poison.
Embodiment 1
In order to which the present invention is more clearly understood, below by taking the burnable poison fuel assemblies of 15 × 15 arrangements as an example and with reference to attached
Fig. 4-6 couples of the present invention are further described.
As shown in figure 4, a grid presses the PWR fuel assembly of 15 × 15 arrangements, coated by 192 by pellet surface
Zirconium boride (ZrB2) monolithic devices burnable poison fuel rod, 12 load boron discrete type burnable poisons for being arranged in fuel rod position
Rod, 20 guide pipes and 1 gauge pipe (being located at fuel assembly middle) composition.
In the above-mentioned load boron discrete type burnable poison rod for being arranged in fuel rod position, the burnable poison rod includes boracic
Combustible poison core block 6, air cavity holddown spring 7 and cladding tubes 8 and end plug 9 that support and coating function are provided, its structural representation
As shown in Figure 5.The burnable poison rod is clamped by the grid spacer 5 of fuel assembly, is fixed in lattice cell.
In a preferred embodiment of the invention, discrete type burnable poison material is by multiple axially folded along burnable poison rod
The B added4C-Al2O3The solid pellet composition of cylindrical type, wherein B4The mass percent that C accounts for pellet gross mass is 7.85%, and pellet is close
Spend for the 70% of solid density.In another preferred embodiment of the invention, discrete type burnable poison material can by multiple edges
Fire the axially stacking B of poison rod4The solid pellet composition of C-Zr cylindrical types, wherein B4The mass percent that C accounts for pellet gross mass is
3.35%.
Using the burnable poison of combinations thereof, the reactivity suppression cycle of fuel assembly is up to 30GWd/tU, burnup latter stage
Residual reactivity punishment can control the reactivity of component in as far as possible low level in the range of most burnups close to zero
It is interior, as shown in Figure 6.In contrast, the reactivity for carrying gadolinium monolithic devices burnable poison fuel assembly suppresses the cycle shorter (17GWd/
TU), remain reactive larger (- 2.2 Δ ρ %)；The reactivity suppression cycle phase for carrying erbium monolithic devices burnable poison fuel assembly is worked as
(30GWd/tU), but it is bigger (- 2.7 Δ ρ %) to remain reactivity punishment.
Embodiment 2
The burnable poison fuel assembly of the present invention may also include the fuel rod of no burnable poison, below with 17 × 17 arrangements
The present invention is further described exemplified by burnable poison fuel assembly and with reference to accompanying drawing 7.
As shown in fig. 7, a grid presses the PWR fuel assembly of 17 × 17 arrangements, coated by 184 by pellet surface
Zirconium boride (ZrB2) monolithic devices burnable poison fuel rod, 16 load boron discrete type burnable poisons for being arranged in fuel rod position
Rod, 64 fuel rods without burnable poison, 24 guide pipes and 1 gauge pipe (being located at fuel assembly middle) composition.
The present invention is not strictly limited to the embodiment.According to technology proposed by the present invention, can apply to any
The burnable poison fuel assembly design of presurized water reactor.
Preferred embodiment of the invention described in detail above.It should be appreciated that one of ordinary skill in the art without
Creative work can is needed to make many modifications and variations according to the design of the present invention.Therefore, all technologies in the art
Personnel are available by logical analysis, reasoning, or a limited experiment on the basis of existing technology under this invention's idea
Technical scheme, all should be in the protection domain being defined in the patent claims.
Claims (4)
1. one kind carries boron monolithic devices and discrete type combination burnable poison fuel assembly, it is characterised in that is coated with including pellet surface
Carry the monolithic devices burnable poison fuel rod of boron burnable poison and carry boron discrete type burnable poison rod, the monolithic devices burnable poison combustion
Charge bar and the position for carrying boron discrete type burnable poison rod and being disposed in fuel rod lattice cell, the load flammable poison of boron discrete type
Thing rod is clamped by the grid spacer of fuel assembly, the composite burnable poison of the discrete type burnable poison material selection boracic
Pellet, the boracic composite combustible poison core block are shaped as the solid pellet of cylindrical type, and the composite of the boracic can
The matrix phase for firing poisonous substance pellet is Al2O3, disperse phase B4C, wherein B4The mass percent that C accounts for pellet gross mass is 7.85%,
Pellet density is the 70% of solid density.
2. boron monolithic devices and discrete type combination burnable poison fuel assembly are carried as claimed in claim 1, it is characterised in that described
The load boron burnable poison of pellet surface coating in monolithic devices burnable poison fuel rod is zirconium boride.
3. boron monolithic devices and discrete type combination burnable poison fuel assembly are carried as claimed in claim 1, it is characterised in that described
Carrying boron discrete type burnable poison rod includes the combustible poison core block of boracic, air cavity holddown spring and provides support and coating function
Cladding tubes, end plug.
4. boron monolithic devices and discrete type combination burnable poison fuel assembly are carried as claimed in claim 1, it is characterised in that described
The composite combustible poison core block of boracic is made of powder metallurgy process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510086638.6A CN104700905B (en) | 2015-02-17 | 2015-02-17 | One kind carries boron monolithic devices and discrete type combination burnable poison fuel assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510086638.6A CN104700905B (en) | 2015-02-17 | 2015-02-17 | One kind carries boron monolithic devices and discrete type combination burnable poison fuel assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104700905A CN104700905A (en) | 2015-06-10 |
| CN104700905B true CN104700905B (en) | 2017-12-15 |
Family
ID=53347939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510086638.6A Active CN104700905B (en) | 2015-02-17 | 2015-02-17 | One kind carries boron monolithic devices and discrete type combination burnable poison fuel assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104700905B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108182979A (en) * | 2017-12-14 | 2018-06-19 | 广东核电合营有限公司 | Adulterate the fuel pellet and its manufacturing method of boron carbide |
| CN109036603B (en) * | 2018-07-27 | 2021-08-17 | 中国核动力研究设计院 | Long-circulation refueling and loading method for reactor core of ultra-large pressurized water reactor |
| CN112420225B (en) * | 2020-11-19 | 2022-02-11 | 中国核动力研究设计院 | Method for controlling reactivity of particle burnable poison, burnable poison plate and fuel rod |
| CN113035385B (en) * | 2021-03-04 | 2024-04-09 | 上海核工程研究设计院股份有限公司 | Boron-containing uranium silicide integral type burnable poison core block |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4751041A (en) * | 1986-01-15 | 1988-06-14 | Westinghouse Electric Corp. | Burnable neutron absorber element |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3283902B2 (en) * | 1992-05-07 | 2002-05-20 | 株式会社東芝 | Fuel assemblies and burnable poison sticks |
| JP2000046978A (en) * | 1998-07-30 | 2000-02-18 | Hitachi Ltd | Fuel assembly |
| US7139360B2 (en) * | 2004-10-14 | 2006-11-21 | Westinghouse Electric Co. Llc | Use of boron or enriched boron 10 in UO2 |
| JP5312978B2 (en) * | 2009-02-23 | 2013-10-09 | 東洋ゴム工業株式会社 | Rubber composition for covering steel cord and pneumatic tire |
| CN101740151B (en) * | 2009-12-17 | 2012-05-30 | 中国核动力研究设计院 | Gel-casting method of Al2O3-B4C material |
| CN103160706B (en) * | 2011-12-15 | 2015-04-01 | 中国核动力研究设计院 | Preparation method of hollow pellet containing boron zirconium alloy burnable poison |
| CN102842345A (en) * | 2012-09-14 | 2012-12-26 | 南华大学 | Application of technetium-99 as burnable poison element |
-
2015
- 2015-02-17 CN CN201510086638.6A patent/CN104700905B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4751041A (en) * | 1986-01-15 | 1988-06-14 | Westinghouse Electric Corp. | Burnable neutron absorber element |
Non-Patent Citations (2)
| Title |
|---|
| Al2O3-B4C弥散陶瓷芯块的研制;黄栋生 等;《核动力工程》;19931031;第14卷(第5期);全文，尤其是第436页第3.3节、图7 * |
| 几种新型可燃毒物的特性以及在我国的应用前景;黄锦华 等;《原子能科学技术》;19980131;第32卷(第1期);第93-95页全文，尤其是第2.2.2节，2.3节，表2 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104700905A (en) | 2015-06-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104700905B (en) | One kind carries boron monolithic devices and discrete type combination burnable poison fuel assembly | |
| US10032528B2 (en) | Fully ceramic micro-encapsulated (FCM) fuel for CANDUs and other reactors | |
| US10109378B2 (en) | Method for fabrication of fully ceramic microencapsulation nuclear fuel | |
| US20150310948A1 (en) | Fully ceramic nuclear fuel and related methods | |
| CN102543224B (en) | Power reactor adopting uranium zirconium hydride fuel element | |
| US20170040069A1 (en) | Dispersion Ceramic Micro-encapsulated (DCM) Nuclear Fuel and Related Methods | |
| Delage et al. | Status of advanced fuel candidates for Sodium Fast Reactor within the Generation IV International Forum | |
| Gosset | Absorber materials for Generation IV reactors | |
| CN108885907A (en) | Use burnable poison as full ceramics microencapsulated fuel made of sintering aid | |
| US11049625B2 (en) | Nuclear fuel pellet with central burnable absorber | |
| CN101281797A (en) | Use of boron or enriched boron 10 in UO2 | |
| WO2011011504A1 (en) | Nuclear battery based on hydride/thorium fuel | |
| JP2020519896A (en) | Nuclear fuel pellets, fuel rods, and fuel assemblies | |
| Petti et al. | Fuels for advanced nuclear energy systems | |
| CN105377763B (en) | The new material formed by uranium, gadolinium and oxygen and its purposes as consumable neutron poison | |
| Sobolev et al. | Design of a fuel element for a lead-cooled fast reactor | |
| Dai et al. | Conceptual core design of an innovative small PWR utilizing fully ceramic microencapsulated fuel | |
| Li et al. | Assembly-level analyses of an innovative long-life marine SMR loaded with accident tolerant fuel | |
| Wu et al. | Neutronics and fuel performance evaluation of accident tolerant fuel under normal operation conditions | |
| Banerjee et al. | 10 Nuclear Fuels | |
| Gomes et al. | Improving performance with accident tolerant-fuels | |
| Sen et al. | Assessment of possible cycle lengths for fully-ceramic micro-encapsulated fuel-based light water reactor concepts | |
| Ishibashi et al. | Hydrogen explosion prevention system using SiC fuel cladding for large scale BWRs with inherently safe technologies | |
| Ploetz | Ceramic materials for nuclear reactor controls and poison | |
| Hu et al. | Downselection of cladding materials for zirconium hydride moderator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 29 Hong Cao Road, Xuhui District, Shanghai Patentee after: SHANGHAI NUCLEAR ENGINEERING RESEARCH & DESIGN INSTITUTE Co.,Ltd. Address before: No. 29 Hong Cao Road, Xuhui District, Shanghai Patentee before: Shanghai Nuclear Engineering Research & Design Institute |
|
| CP01 | Change in the name or title of a patent holder | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A boron loaded integrated and discrete combined combustible poison fuel assembly Effective date of registration: 20210916 Granted publication date: 20171215 Pledgee: Bank of China Limited by Share Ltd. Shanghai Xuhui branch Pledgor: SHANGHAI NUCLEAR ENGINEERING RESEARCH & DESIGN INSTITUTE Co.,Ltd. Registration number: Y2021310000073 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220906 Granted publication date: 20171215 Pledgee: Bank of China Limited by Share Ltd. Shanghai Xuhui branch Pledgor: SHANGHAI NUCLEAR ENGINEERING RESEARCH & DESIGN INSTITUTE Co.,Ltd. Registration number: Y2021310000073 |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 29 Hong Cao Road, Xuhui District, Shanghai Patentee after: Shanghai Nuclear Engineering Research and Design Institute Co.,Ltd. Address before: No. 29 Hong Cao Road, Xuhui District, Shanghai Patentee before: SHANGHAI NUCLEAR ENGINEERING RESEARCH & DESIGN INSTITUTE Co.,Ltd. |