CN114334202A - Fuel storage framework and assembling method thereof - Google Patents
Fuel storage framework and assembling method thereof Download PDFInfo
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- CN114334202A CN114334202A CN202111653449.4A CN202111653449A CN114334202A CN 114334202 A CN114334202 A CN 114334202A CN 202111653449 A CN202111653449 A CN 202111653449A CN 114334202 A CN114334202 A CN 114334202A
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- bottom plate
- coaming
- assembly
- bounding wall
- panel
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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Abstract
The invention relates to the technical field of nuclear island equipment, in particular to a fuel storage framework and an assembling method thereof. A fuel storage lattice and method of assembling the same, comprising: stand, bottom plate, bounding wall subassembly and baffle subassembly, four end angle position departments of bottom plate upper end all are fixed with the stand, the bounding wall subassembly sets up on the stand, bottom plate, bounding wall subassembly component frame main part, the baffle subassembly sets up inside the frame main part, and passes through the bounding wall subassembly links to each other with the stand. The framework is easy to produce and convenient to assemble by the multi-structure matching design, and the framework is supported by the base assembly, so that the inconvenience in installation is reduced, and the framework is prevented from being directly contacted with the ground; the traditional horizontal assembly mode is changed into vertical assembly, so that the time loss caused by horizontal assembly of the frame is saved, the use of manpower and material resources is also saved, the size of the whole framework can be controlled, and the back of a welding line is convenient to clean; and can be passivated by acid cleaning in the whole.
Description
Technical Field
The invention relates to the technical field of nuclear island equipment, in particular to a fuel storage framework and an assembling method thereof.
Background
The spent fuel storage grillwork is important equipment of the nuclear island, and the spent fuel storage grillwork with the largest specification is the high-density spent fuel storage grillwork, so that the assembly difficulty of the storage grillwork is high;
the technical scheme in the prior art is as follows:
and (3) horizontal assembly, namely welding the bottom plate and the upright posts, assembling and welding the coamings and the upright posts, then horizontally placing the frame on the platform, enabling the coamings to face upwards, inserting the partition plate into the coamings and performing spot welding. Then, the storage cells are sequentially suspended from both ends into the frame and fixed to the base plate by bolts, and then assembled to the middle. Assembling the two partition plates layer by layer upwards, inserting the partition plates into the enclosing plates from the other direction after one layer is installed, and performing spot welding on the two partition plates after the partition plates are inserted into the grooves in the partition plates; after the small storage chamber is installed, the rest surrounding plates and the upright posts are welded in an assembling mode;
the prior art has the following disadvantages:
the welding deformation of the coaming and the upright post cannot be controlled, the back surface of the coaming cannot be polished after welding, and the cladding plate has the risk of oxidation.
Disclosure of Invention
The invention aims to provide a fuel storage framework and an assembly method thereof, which aim to solve the existing problems: horizontally assembling; the welding deformation of the coaming and the upright post cannot be controlled, the back surface of the coaming cannot be polished after welding, and the cladding plate has the risk of oxidation.
In order to achieve the purpose, the invention adopts the following technical scheme:
a fuel storage grid comprising: the frame comprises upright columns, a bottom plate, a coaming assembly and a partition plate assembly, wherein the upright columns are fixed at four end corner positions at the upper end of the bottom plate, the coaming assembly is arranged on the upright columns, the bottom plate and the coaming assembly form a frame main body, and the partition plate assembly is arranged in the frame main body and is connected with the upright columns through the coaming assembly;
still include the base subassembly, the base subassembly sets up the lower extreme at the bottom plate for the support of frame main part.
Preferably, the coaming assembly comprises a coaming 1, a coaming 2, a coaming 3 and a coaming 4, the coaming 1 and the coaming 2 are arranged on two sides of the frame main body, two ends of the coaming 1 and the coaming 2 are fixed with the upright posts, and the coaming 1 is positioned at the upper end of the coaming 2; the both ends of putting up the main part all are provided with bounding wall 3 and bounding wall 4, the both ends of bounding wall 3 and bounding wall 4 all are fixed with the stand, bounding wall 3 is located the upper end position department of bounding wall 4, the baffle subassembly is located the position department between bounding wall 1 and the bounding wall 4.
Preferably, the partition plate assembly comprises a partition plate 1 and a partition plate 2, the partition plate 1 is transversely arranged between two enclosing plates 1, the partition plate 2 is longitudinally arranged between two enclosing plates 4, and the partition plate 1 and the partition plate 2 are in clamping connection;
the partition boards 1 and 2 divide the interior of the rack main body into a plurality of storage cells, and storage sleeves are arranged in the storage cells.
Preferably, the number of the storage cells in the transverse direction is 8, and the number of the storage cells in the longitudinal direction is 7.
Preferably, the base subassembly includes swivel nut, adjusting screw, semicircle board and backing plate, the lower extreme at the bottom plate is fixed to the swivel nut, the lower extreme threaded connection of swivel nut has adjusting screw, the semicircle board is fixed in the upper end of backing plate, the backing plate is located adjusting screw's lower extreme, the backing plate passes through semicircle board and adjusting screw's bottom joint.
A method of assembling a fuel storage grid for use in said fuel storage grid, comprising the steps of:
s1, welding and fixing the coamings and the upright posts according to the size requirement of the grillwork, and cleaning the welding seams;
s2, welding and fixing the bottom plate at the bottom of the upright post to form a frame main body by the coaming, the upright post and the bottom plate, and carrying out acid pickling and passivation treatment on the whole;
s3, installing the storage sleeve in the storage chamber;
s4, finally, installing a partition board 1 and a partition board 2, and inserting the partition board 1 into the coaming 1; the partition boards 2 are inserted into the coamings 4 and buckled with the partition boards 1 together, and the interior of the frame main body is divided into a plurality of small storage chambers; wherein, the clapboard 2 can be inserted from the upper end of the coaming 4 to finish the grid assembly.
The invention has at least the following beneficial effects:
the framework is easy to produce and convenient to assemble by the multi-structure matching design, and the framework is supported by the base assembly, so that the inconvenience in installation is reduced, and the framework is prevented from being directly contacted with the ground; the traditional horizontal assembly mode is changed into vertical assembly, so that the time loss caused by horizontal assembly of the frame is saved, the use of manpower and material resources is also saved, the size of the whole framework can be controlled, and the back of a welding line is convenient to clean; and can be passivated by acid cleaning in the whole.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural view of the rack body of the present invention;
FIG. 3 is a top view of the overall structure of the present invention;
fig. 4 is an enlarged view of the structure of the base assembly of the present invention.
In the figure: 1. a threaded sleeve; 2. adjusting the screw rod; 3. a semicircular plate; 4. a bottom cushion plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1:
referring to fig. 1-4, a fuel storage lattice comprises: the frame comprises upright columns, a bottom plate, a coaming assembly and a partition plate assembly, wherein the upright columns are fixed at four end corner positions at the upper end of the bottom plate, the coaming assembly is arranged on the upright columns, the bottom plate and the coaming assembly form a frame main body, and the partition plate assembly is arranged in the frame main body and is connected with the upright columns through the coaming assembly; the vertical assembly mode is adopted, the coaming and the upright post are welded into a whole, so that the size of the whole grillwork can be controlled, and the back of a welding line can be cleaned; and can be passivated by acid cleaning in the whole.
Specifically, the coaming assembly comprises a coaming 1, a coaming 2, a coaming 3 and a coaming 4, wherein the coaming 1 and the coaming 2 are arranged on two sides of the frame main body, two ends of the coaming 1 and the coaming 2 are fixed with the upright posts, and the coaming 1 is positioned at the upper end of the coaming 2; both ends of the frame main body are provided with a coaming 3 and a coaming 4, both ends of the coaming 3 and the coaming 4 are fixed with the upright posts, the coaming 3 is positioned at the upper end position of the coaming 4, and the clapboard assembly is positioned between the coaming 1 and the coaming 4;
through bounding wall 1, bounding wall 2, bounding wall 3, bounding wall 4, connect four stands of bottom plate upper end and constitute a main part, increase the stability of putting up the main part through bounding wall 2, bounding wall 3, be convenient for follow-up baffle subassembly's installation through bounding wall 1, bounding wall 4.
Specifically, the partition plate assembly comprises a partition plate 1 and a partition plate 2, the partition plate 1 is transversely arranged between two enclosing plates 1, the partition plate 2 is longitudinally arranged between two enclosing plates 4, the partition plate 1 and the partition plate 2 are in clamping connection, wherein a notch is formed in the partition plate 1, and the partition plate 2 is in clamping connection with the partition plate 1 through the notch;
wherein the inside of the frame main body is divided into a plurality of storage cells by the partition boards 1 and 2, the storage sleeves are arranged in the storage cells, and the dimensional tolerance of the storage sleeves is 230+ 0 1mm, the space between every two storage cells is 240 +/-0.15 mm, when the extreme size of the storage sleeve is 231mm, the size of the partition plate is 8mm, and thus a 0.5mm assembly gap exists on one side;
the number of the storage cells in the transverse direction is 8, the number of the storage cells in the longitudinal direction is 7, and the storage cells are divided into a chamber 1, a chamber 2 and a chamber 3;
the arrangement sequence is as follows:
a first row: chamber 1, chamber 2, chamber 1;
a second row: chamber 2, chamber 3, chamber 2;
the third row: chamber 2, chamber 1, chamber 2;
the fourth row: chamber 2, chamber 2;
the fifth row: chamber 2, chamber 1, chamber 2;
sixth row: chamber 2, chamber 3, chamber 2;
seventh row: chamber 1, chamber 2, chamber 1.
Wherein the center-to-center spacing of the first and eighth chambers in each row is 1680 mm;
wherein the centre-to-centre spacing of the second and seventh chambers in each row is 1200 mm;
wherein the centre-to-centre spacing of the third and sixth chambers in each row is 720 mm;
wherein the first and seventh chambers in each column are spaced 1440mm apart;
wherein the centre-to-centre spacing of the second and sixth chambers in each column is 960 mm;
wherein, the length of the lattice frame is 1940 mm; the width is 1700 mm; the height is 4425 mm.
The shelf support frame comprises a base assembly, wherein the base assembly is arranged at the lower end of a bottom plate and is used for supporting a main body.
The base assembly comprises a threaded sleeve 1, an adjusting screw 2, a semicircular plate 3 and a bottom cushion plate 4, the threaded sleeve 1 is fixed at the lower end of the bottom plate, the lower end of the threaded sleeve 1 is in threaded connection with the adjusting screw 2, the semicircular plate 3 is fixed at the upper end of the bottom cushion plate 4, the bottom cushion plate 4 is located at the lower end of the adjusting screw 2, and the bottom cushion plate 4 is clamped with the bottom end of the adjusting screw 2 through the semicircular plate 3; the adjusting screw 2, the semi-circular plate 3 connected with the adjusting screw 2 and the base plate 4 are convenient to mount and dismount through the threaded connection of the adjusting screw 2 and the threaded sleeve 1; the semicircular plate 3 is clamped with the adjusting screw rod 2, so that the base plate 4 can be conveniently mounted and dismounted.
Example 2:
on the basis of the above example 1, an assembly method thereof is disclosed:
the first step is as follows: according to the size requirement of the framework, the coaming and the upright post are welded and fixed, the welding seam is cleaned, and the whole body is subjected to pickling and passivation treatment;
the second step is that: welding and fixing the bottom plate at the bottom of the upright post, so that the coaming, the upright post and the bottom plate form a frame main body;
the third step: finally, installing a partition plate 1 and a partition plate 2, and inserting the partition plate 1 into the enclosing plate 1; the partition boards 2 are inserted into the coamings 4 and buckled with the partition boards 1 together, and the interior of the frame main body is divided into a plurality of small storage chambers; wherein, the clapboard 2 can be inserted from the upper end of the coaming 4;
the fourth step: and (5) mounting the storage sleeve inside the storage cell to complete the framework assembly.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. A fuel storage grid comprising: the frame comprises upright columns, a bottom plate, a coaming assembly and a partition plate assembly, wherein the upright columns are fixed at four end corner positions at the upper end of the bottom plate, the coaming assembly is arranged on the upright columns, the bottom plate and the coaming assembly form a frame main body, and the partition plate assembly is arranged in the frame main body and is connected with the upright columns through the coaming assembly; still include the base subassembly, the base subassembly sets up the lower extreme at the bottom plate for the support of frame main part.
2. A fuel storage lattice as claimed in claim 1, wherein the panel assembly comprises panels 1, 2, 3 and 4, the panel 1 and 2 are provided on either side of the body, the two ends of the panels 1 and 2 are fixed to the pillars, and the panel 1 is located at the upper end of the panel 2; the both ends of putting up the main part all are provided with bounding wall 3 and bounding wall 4, the both ends of bounding wall 3 and bounding wall 4 all are fixed with the stand, bounding wall 3 is located the upper end position department of bounding wall 4, the baffle subassembly is located the position department between bounding wall 1 and the bounding wall 4.
3. A fuel storage lattice as claimed in claim 2, wherein the panel assembly comprises a panel 1 and a panel 2, the panel 1 being disposed transversely between two panels 1, the panel 2 being disposed longitudinally between two panels 4, the panel 1 being snap-fit to the panel 2;
the partition boards 1 and 2 divide the interior of the rack main body into a plurality of storage cells, and storage sleeves are arranged in the storage cells.
4. A fuel storage lattice as claimed in claim 3, wherein the number of storage cells in the transverse direction is 8 and the number of storage cells in the longitudinal direction is 7.
5. A fuel storage grid according to claim 1, wherein the base assembly comprises a threaded sleeve (1), an adjusting screw (2), a semi-circular plate (3) and a bottom plate (4), the threaded sleeve (1) is fixed at the lower end of the bottom plate, the adjusting screw (2) is connected to the lower end of the threaded sleeve (1) in a threaded manner, the semi-circular plate (3) is fixed at the upper end of the bottom plate (4), the bottom plate (4) is located at the lower end of the adjusting screw (2), and the bottom plate (4) is clamped with the bottom end of the adjusting screw (2) through the semi-circular plate (3).
6. A method of assembling a fuel storage lattice for use in a fuel storage lattice as claimed in any one of claims 1 to 6, the steps comprising:
s1, welding and fixing the coamings and the upright posts according to the size requirement of the grillwork, and cleaning the welding seams;
s2, welding and fixing the bottom plate at the bottom of the upright post to form a frame main body by the coaming, the upright post and the bottom plate, and carrying out acid pickling and passivation treatment on the whole;
s3, installing the storage sleeve in the storage chamber;
s4, finally, installing a partition board 1 and a partition board 2, and inserting the partition board 1 into the coaming 1; the partition boards 2 are inserted into the coamings 4 and buckled with the partition boards 1 together, and the interior of the frame main body is divided into a plurality of small storage chambers; wherein, the clapboard 2 can be inserted from the upper end of the coaming 4 to finish the grid assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111653449.4A CN114334202A (en) | 2021-12-31 | 2021-12-31 | Fuel storage framework and assembling method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111653449.4A CN114334202A (en) | 2021-12-31 | 2021-12-31 | Fuel storage framework and assembling method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN114334202A true CN114334202A (en) | 2022-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111653449.4A Pending CN114334202A (en) | 2021-12-31 | 2021-12-31 | Fuel storage framework and assembling method thereof |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200951988A (en) * | 2008-05-28 | 2009-12-16 | Westinghouse Electric Sweden | A spacer grid |
| CN101958155A (en) * | 2009-07-13 | 2011-01-26 | 中国核电工程有限公司 | Spent fuel storage grillage |
| CN102479560A (en) * | 2010-11-23 | 2012-05-30 | 大连创达技术交易市场有限公司 | Spent fuel storage grillwork for nuclear power station |
| CN102610287A (en) * | 2012-03-28 | 2012-07-25 | 中广核工程有限公司 | Spent fuel storage grillwork for nuclear power plant |
| 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 |
| CN107980163A (en) * | 2017-09-20 | 2018-05-01 | 岭澳核电有限公司 | Grid spacer and fuel assembly |
| CN208752970U (en) * | 2018-08-23 | 2019-04-16 | 深圳中广核工程设计有限公司 | Presurized water reactor spentnuclear fuel stores and transports dual-purpose fuel basket |
| CN111710450A (en) * | 2020-06-22 | 2020-09-25 | 上海阿波罗机械股份有限公司 | Manufacturing process of spent fuel storage grillwork |
| KR20210082747A (en) * | 2019-12-26 | 2021-07-06 | 한국원자력연구원 | Storage rack for spent fuel assembly in a spent fuel pool |
-
2021
- 2021-12-31 CN CN202111653449.4A patent/CN114334202A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200951988A (en) * | 2008-05-28 | 2009-12-16 | Westinghouse Electric Sweden | A spacer grid |
| CN101958155A (en) * | 2009-07-13 | 2011-01-26 | 中国核电工程有限公司 | Spent fuel storage grillage |
| CN102479560A (en) * | 2010-11-23 | 2012-05-30 | 大连创达技术交易市场有限公司 | Spent fuel storage grillwork for nuclear power station |
| CN102610287A (en) * | 2012-03-28 | 2012-07-25 | 中广核工程有限公司 | Spent fuel storage grillwork for nuclear power plant |
| 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 |
| CN107980163A (en) * | 2017-09-20 | 2018-05-01 | 岭澳核电有限公司 | Grid spacer and fuel assembly |
| CN208752970U (en) * | 2018-08-23 | 2019-04-16 | 深圳中广核工程设计有限公司 | Presurized water reactor spentnuclear fuel stores and transports dual-purpose fuel basket |
| KR20210082747A (en) * | 2019-12-26 | 2021-07-06 | 한국원자력연구원 | Storage rack for spent fuel assembly in a spent fuel pool |
| CN111710450A (en) * | 2020-06-22 | 2020-09-25 | 上海阿波罗机械股份有限公司 | Manufacturing process of spent fuel storage grillwork |
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