Novel spent fuel storage hanging basket
阅读说明：本技术 一种新型乏燃料贮存吊篮 (Novel spent fuel storage hanging basket ) 是由 陆金琪 仲伟荃 阎晓伟 姚学良 于 2020-07-21 设计创作，主要内容包括：本发明公开了一种新型乏燃料贮存吊篮,包括支撑板、贮存套管、拉杆、顶部屏蔽环和底部屏蔽环,所述支撑板的数量为多个,多个支撑板从上至下依次设置,每个支撑板上开设有若干四方孔和若干圆孔,且所述若干圆孔环绕在所述若干四方孔的外围；所有支撑板上的四方孔一一对应的设置,每列的四方孔组成一个贮存套管安装通道；所有支撑板上的圆孔一一对应的设置,每列的圆孔组成一个拉杆安装通道；最下层的支撑板的径向两侧一一对应地开设有两个支撑板键槽；每个拉杆安装通道内设置有一个所述拉杆；每个贮存套管安装通道内设置有一个所述贮存套管。本发明的新型乏燃料贮存吊篮,导热性好、焊接变形小、安装方便。(The invention discloses a novel spent fuel storage hanging basket which comprises a plurality of supporting plates, a storage sleeve, a pull rod, a top shielding ring and a bottom shielding ring, wherein the plurality of supporting plates are arranged in sequence from top to bottom; the square holes on all the supporting plates are arranged in a one-to-one correspondence manner, and the square holes in each row form a storage sleeve installation channel; the round holes on all the supporting plates are arranged in a one-to-one correspondence manner, and the round holes in each row form a pull rod installation channel; two supporting plate key grooves are formed in the radial two sides of the supporting plate at the lowest layer in a one-to-one correspondence mode; each pull rod mounting channel is internally provided with one pull rod; one storage sleeve is arranged in each storage sleeve mounting channel. The novel spent fuel storage hanging basket has the advantages of good heat conductivity, small welding deformation and convenience in installation.)
1. The utility model provides a novel hanging flower basket is stored to spent fuel which characterized in that, includes backup pad, storage sleeve pipe, pull rod, top shield ring and bottom shield ring, wherein:
the supporting plates are arranged in sequence from top to bottom, each supporting plate is provided with a plurality of square holes and a plurality of round holes, and the round holes are surrounded on the peripheries of the square holes; the square holes on all the supporting plates are arranged in a one-to-one correspondence manner, and the square holes in each row form a storage sleeve installation channel; the round holes on all the supporting plates are arranged in a one-to-one correspondence manner, and the round holes in each row form a pull rod installation channel;
two supporting plate key grooves are formed in the radial two sides of the supporting plate at the lowest layer in a one-to-one correspondence mode;
each pull rod mounting channel is internally provided with one pull rod;
the top end of each pull rod is in threaded connection with a nut, and the nut is positioned on the upper surface of the supporting plate on the uppermost layer;
each pull rod is sequentially sleeved with a top distance pipe, a plurality of middle distance pipes and a bottom distance pipe from top to bottom, the top distance pipe is positioned between the uppermost layer of support plates and the second layer of support plates, and the middle distance pipe is arranged between every two adjacent support plates in the support plates from the second layer to the lowermost layer; the bottom distance pipe is sleeved at the bottom end of the pull rod and is positioned on the lower surface of the supporting plate at the lowest layer;
each storage sleeve installation channel is internally provided with one storage sleeve;
the top end of each storage sleeve is fixed on the uppermost supporting plate in a welding mode through a guide strip, the bottom end of each storage sleeve is welded with a stop block, and the stop block is positioned on the lower surface of the lowermost supporting plate;
a plurality of aluminum sleeves are sleeved on the outer side of each storage sleeve from top to bottom, and the aluminum sleeves are positioned between every two adjacent supporting plates; a neutron absorption plate is arranged between each aluminum sleeve and the corresponding storage sleeve;
an aluminum ring is clamped between every two adjacent layers of supporting plates, the aluminum ring is formed by two large aluminum blocks and two small aluminum blocks which are arranged at intervals in a surrounding mode, and the aluminum ring surrounds the outer side of the corresponding distance tube; the two radial sides of the aluminum ring at the lowest layer are respectively provided with an aluminum ring key groove, and the two aluminum ring key grooves are correspondingly arranged on the two large aluminum blocks one by one;
the top shielding ring is positioned between the supporting plates of the uppermost layer and the second layer;
the bottom shielding ring is positioned below the support plate of the lowest layer.
2. The novel spent fuel storage hanging basket according to claim 1, wherein the guide strip is arranged between the tops of every two adjacent storage sleeves, is positioned on the upper surface of the uppermost supporting plate, and is connected with the two adjacent storage sleeves through welding;
a quadrangle block is arranged on a connected corner at the top end of each adjacent four storage sleeves, and the quadrangle block is connected with the adjacent four storage sleeves through welding;
the connected corners of the top ends of every two adjacent storage sleeves on the outer side are provided with triangular blocks, and the triangular blocks are connected with the two adjacent storage sleeves through welding;
the corner of the top end of the storage sleeve on the outer side, which is connected with the supporting ring on the uppermost layer, is provided with two corner blocks, and the two corner blocks are connected with the storage sleeve and the supporting ring on the uppermost layer through welding.
3. The novel spent fuel storage basket according to claim 2, wherein the four corner blocks, the three corner blocks and the two corner blocks are all located on the upper surface of the uppermost support ring.
4. The novel spent fuel storage basket according to claim 1, wherein each support plate is provided with four bolt holes for lifting the support plate.
5. The novel spent fuel storage basket according to claim 1, wherein a gasket is disposed between the nut and the uppermost support plate.
Technical Field
The invention relates to a novel spent fuel storage hanging basket.
Background
Spent fuel produced by nuclear power needs to be transported and stored, and hanging baskets need to be stored in a transporting container and a storing container of the spent fuel regardless of transportation, short-term storage and long-term storage. The hanging basket is used for supporting, positioning, shielding and radiating the spent fuel.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a novel spent fuel storage hanging basket which is good in heat conductivity, small in welding deformation and convenient to install.
The technical scheme for realizing the purpose is as follows: the utility model provides a novel hanging flower basket is stored to spent fuel, includes backup pad, storage sleeve pipe, pull rod, top shield ring and bottom shield ring, wherein:
the supporting plates are arranged in sequence from top to bottom, each supporting plate is provided with a plurality of square holes and a plurality of round holes, and the round holes are surrounded on the peripheries of the square holes; the square holes on all the supporting plates are arranged in a one-to-one correspondence manner, and the square holes in each row form a storage sleeve installation channel; the round holes on all the supporting plates are arranged in a one-to-one correspondence manner, and the round holes in each row form a pull rod installation channel;
two supporting plate key grooves are formed in the radial two sides of the supporting plate at the lowest layer in a one-to-one correspondence mode;
each pull rod mounting channel is internally provided with one pull rod;
the top end of each pull rod is in threaded connection with a nut, and the nut is positioned on the upper surface of the supporting plate on the uppermost layer;
each pull rod is sequentially sleeved with a top distance pipe, a plurality of middle distance pipes and a bottom distance pipe from top to bottom, the top distance pipe is positioned between the uppermost layer of support plates and the second layer of support plates, and the middle distance pipe is arranged between every two adjacent support plates in the support plates from the second layer to the lowermost layer; the bottom distance pipe is sleeved at the bottom end of the pull rod and is positioned on the lower surface of the supporting plate at the lowest layer;
each storage sleeve installation channel is internally provided with one storage sleeve;
the top end of each storage sleeve is fixed on the uppermost supporting plate in a welding mode through a guide strip, the bottom end of each storage sleeve is welded with a stop block, and the stop block is positioned on the lower surface of the lowermost supporting plate;
a plurality of aluminum sleeves are sleeved on the outer side of each storage sleeve from top to bottom, and the aluminum sleeves are positioned between every two adjacent supporting plates; a neutron absorption plate is arranged between each aluminum sleeve and the corresponding storage sleeve;
an aluminum ring is clamped between every two adjacent layers of supporting plates, the aluminum ring is formed by two large aluminum blocks and two small aluminum blocks which are arranged at intervals in a surrounding mode, and the aluminum ring surrounds the outer side of the corresponding distance tube; the two radial sides of the aluminum ring at the lowest layer are respectively provided with an aluminum ring key groove, and the two aluminum ring key grooves are correspondingly arranged on the two large aluminum blocks one by one;
the top shielding ring is positioned between the supporting plates of the uppermost layer and the second layer;
the bottom shielding ring is positioned below the support plate of the lowest layer.
The novel spent fuel storage hanging basket is characterized in that the guide strip is arranged between the tops of every two adjacent storage sleeves, the guide strip is positioned on the upper surface of the supporting plate on the uppermost layer, and the guide strip is connected with the two adjacent storage sleeves in a welding mode;
a quadrangle block is arranged on a connected corner at the top end of each adjacent four storage sleeves, and the quadrangle block is connected with the adjacent four storage sleeves through welding;
the connected corners of the top ends of every two adjacent storage sleeves on the outer side are provided with triangular blocks, and the triangular blocks are connected with the two adjacent storage sleeves through welding;
the corner of the top end of the storage sleeve on the outer side, which is connected with the supporting ring on the uppermost layer, is provided with two corner blocks, and the two corner blocks are connected with the storage sleeve and the supporting ring on the uppermost layer through welding.
The novel spent fuel storage hanging basket is characterized in that the four corner blocks, the three corner blocks and the two corner blocks are all located on the upper surface of the support ring on the uppermost layer.
The novel spent fuel storage hanging basket is characterized in that four bolt holes for hoisting the supporting plate are formed in each supporting plate.
The novel spent fuel storage hanging basket is characterized in that a gasket is arranged between the nut and the supporting plate on the uppermost layer.
The novel spent fuel storage hanging basket has the advantages of good heat conductivity, small welding deformation and convenience in installation, and the number of the spent fuel carried by the novel spent fuel storage hanging basket can cover 15-32 groups of spent fuel.
Drawings
FIG. 1 is a block diagram of the novel spent fuel storage basket of the present invention;
FIG. 2 is a front view of the novel spent fuel storage basket of the present invention;
figure 3 is a top plan view of the novel spent fuel storage basket of the present invention;
FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3 (rotated 90 degrees);
FIG. 5 is a sectional view taken along line B-B of FIG. 3;
FIG. 6 is an enlarged view of a portion C of FIG. 5;
fig. 7 is a partially enlarged view of a portion D in fig. 5.
Detailed Description
In order that those skilled in the art will better understand the technical solution of the present invention, the following detailed description is given with reference to the accompanying drawings:
referring to fig. 1 to 7, a preferred embodiment of the present invention, a novel spent fuel storage basket, includes a
The number of the supporting
The
The supporting plate at the lowest layer is the supporting plate 1 with the key grooves, and two supporting plate key grooves are formed in the radial two sides of the supporting plate in a one-to-one correspondence mode; namely, 1 gap is respectively arranged in the directions of 0 degree and 180 degrees and can be matched with a barrel limiting block to limit the circumferential rotation of the hanging basket.
A
Referring to fig. 4, each
The
Each storage sleeve mounting passage is internally provided with a
The
An aluminum ring is clamped between every two adjacent layers of supporting plates, the aluminum ring is formed by two
The 3 covers of big aluminium pig are located the quarter bend outside, and every two-layer centre gripping between the backup pad, and the material is 6061 aluminum plate, utilizes the quick advantage of aluminium heat dissipation, increases the heat transfer of spent fuel, plays high-efficient radiating effect. Take
The
A
a four-corner block 9 is arranged on a connected corner at the top end of each adjacent four storage sleeves, and the four-corner block 9 is connected with the adjacent four storage sleeves through welding;
a triangular block 7 is arranged on a connected corner of the top ends of every two adjacent storage sleeves on the outer side, and the triangular block 7 is connected with the two adjacent storage sleeves through welding;
two corner blocks 8 are arranged on corners where the top ends of the outer storage sleeves are connected with the supporting ring on the uppermost layer, and the two corner blocks 8 are connected with the storage sleeves and the supporting ring on the uppermost layer through welding.
The four-corner block 9, the three-corner block 7 and the two corner blocks 8 are all positioned on the upper surface of the support ring on the uppermost layer.
The guide strips 6, the four corner blocks 9, the triangular blocks 7 and the two corner blocks 8 enable all the
The novel spent fuel storage hanging basket has the advantages that:
(1) the hanging basket is integrally designed into an installation structure, so that welding deformation, welding period and nondestructive testing are reduced compared with a welding type hanging basket, and production efficiency is improved;
(2) the pull rod is structurally designed into a polished rod round rod, only the upper end and the lower end of the polished rod round rod are connected through threads, the strength is increased compared with a full-thread pull rod, the position deviation caused by vibration is reduced, the positioning is accurate, the assembly period is shortened, and the installation is convenient;
(3) the storage sleeve is designed into a single square tube, and outer-side cladding welding is avoided, so that welding deformation and nondestructive testing procedures are reduced compared with a cladding structure, and unevenness of the cladding surface caused by welding is reduced, so that the assembly difficulty of the storage sleeve is reduced, a top flaring design is avoided, and the manufacturing difficulty is reduced compared with a top flaring design;
(5) the design without the cladding reduces the manufacturing procedures of the cladding and the difficulty of the cladding pressing compared with the cladding;
(6) the aluminum sleeve is designed, the material is 1100 aluminum plates, and compared with the aluminum-free sleeve, the position of the neutron absorption plate is limited, and the advantage of quick heat dissipation of aluminum is utilized, so that the heat transfer of the spent fuel is increased, and the efficient heat dissipation effect is achieved;
(7) the neutron absorption plate is designed in small blocks, so that the manufacturing difficulty and the installation difficulty are reduced compared with the whole design, and the damage risk of the neutron absorption plate during installation is reduced;
(8) the aluminum block is structurally designed to be a single arc shape, and is divided into a large aluminum block and a small aluminum block, the large aluminum block and the small aluminum block are matched to form a whole circular ring (aluminum ring) to be installed on the outer side of the hanging basket, the material is 6061 aluminum alloy, the hanging basket can be protected to reduce the damage risk of the hanging basket compared with the design without the aluminum block, the circular outer diameter formed by matching the large aluminum block and the small aluminum block can assist the hanging basket to be smoothly inserted into a barrel for assembly, the 6061 aluminum alloy material has quick heat dissipation, can increase heat transfer, has high-efficiency heat dissipation effect, and reduces the manufacturing difficulty and the installation difficulty;
(9) the bottom distance tube adopts a thread form, so that the distance between the last layer of support plate and the ground is limited on one hand, the axial position of the hanging basket is limited by connecting the bottom distance tube with the pull rod on the other hand, and the outer side of the distance tube is square, so that the circumferential stress is convenient to tighten when the thread is screwed down;
(10) the top shielding ring is designed, no aluminum block is arranged at the top, and the shielding ring is added to supplement the heat dissipation function;
(11) the bottom shielding ring is designed, the bottom does not have an aluminum block, the shielding ring is added to supplement the heat dissipation function, the bottom shielding ring is designed into 2 semicircular rings, the manufacturing difficulty is reduced,
(12) the guide strips are designed, installed and welded between the adjacent storage sleeves, and the storage sleeve flaring design is replaced, so that the manufacturing difficulty is reduced;
(13) the four-corner block and the two-corner block are designed and installed and welded at four corners of the storage sleeve to replace the flaring design of the storage sleeve, so that the manufacturing difficulty is reduced.
According to the novel spent fuel storage hanging basket, the storage sleeve and the pull rod are parallel to each other and are vertically placed, and the supporting plates are limited by the fixed-moment tubes and are parallel to each other; the storage sleeve movably penetrates through the supporting plate, the top of the storage sleeve is welded and fixed with the guide strip, an aluminum sleeve is clamped between two adjacent supporting plates on the same storage sleeve, and a neutron absorption plate is clamped between the aluminum sleeve and the storage sleeve; the pull rod is detachable and passes the backup pad, decides rectangular pipe, aluminium piece and is detachable cover and locate the pull rod, and rectangular pipe and aluminium piece are decided to double-phase adjacent backup pad centre gripping on same pull rod.
In conclusion, the novel spent fuel storage hanging basket has the advantages of good heat conductivity, small welding deformation and convenience in installation.
It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that changes and modifications to the above described embodiments are within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.
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