Storage device

Abstract

The storage device is used for storing a control rod drive rod and comprises a frame body, a top plate, a bottom plate and a plurality of middle plates, the frame body is of a frame body structure and comprises at least two frame layers which are sequentially stacked in the height direction, every two adjacent frame layers are detachably connected, and the height direction is the direction from the bottom end of the frame body to the top end of the frame body. The top plate is arranged at the top of the frame. And the bottom plate is arranged on the lowermost rack layer in the at least two rack layers. The multiple middle plates are arranged on the frame body and located between the top plate and the bottom plate, and the bottom plate, the multiple middle plates and the top plate are sequentially and oppositely arranged at intervals in the height direction. A plurality of supporting through holes are formed in the top plate and each middle plate in the height direction in a penetrating mode, and the supporting through holes in the top plate and the supporting through holes in the middle plates are oppositely formed in the height direction in a one-to-one correspondence mode. According to the storage device, a plurality of control rod drive rods can be placed, the transportation difficulty can be reduced through the detachable connection design of the frame layers, and the transportation convenience is improved.

Description

Technical Field

[0001] The present application relates to the technical field of supporting equipment for nuclear power plants, and in particular to a storage device. Background Art

[0002] Reactor control rod drive rods (CRDRs for short) are driving components of reactor fuel assembly control rods, providing precise step control for lifting and dropping control rods, and are important components related to reactor operation safety. Generally, control rod guide cylinders of reactor upper internal components need to be regularly inspected for wear or replaced to eliminate the risk of control rods getting stuck during the process of lifting and dropping control rods. However, one of the prerequisites for inspection or replacement of control rod guide cylinders is to pull out and store all control rod drive rods in the control rod guide cylinders.

[0003] However, the current storage device has the problem of a small number of control rod drive rods that can be stored, which brings limitations to the wear inspection of the control rod guide tube of the reactor upper component. Therefore, it is urgent to develop a storage device that is easy to transport and can store all control rod drive rods pulled out of the control rod guide tube. Summary of the invention

[0004] Based on this, it is necessary to provide a storage device that is convenient for transportation and can store all control rod driving rods pulled out from the control rod guide cylinder to address the above problems.

[0005] A storage device for storing a control rod driving rod, comprising:

[0006] A frame body, wherein the frame body is a frame structure, and the frame body comprises at least two frame layers stacked in sequence along a height direction, and two adjacent frame layers are detachably connected, wherein the height direction is a direction from the bottom end of the frame body to the top end of the frame body;

[0007] A top plate, the top plate being arranged at the top of the frame;

[0008] A bottom plate, the bottom plate being arranged on the lowest shelf layer among the at least two shelf layers;

[0009] A plurality of intermediate plates, the plurality of intermediate plates are arranged on the frame and located between the top plate and the bottom plate, and the bottom plate, the plurality of intermediate plates and the top plate are arranged opposite to each other in sequence and at intervals along the height direction;

[0010] The top plate and each of the middle plates are provided with a plurality of supporting through holes penetrating along the height direction, and the plurality of supporting through holes on the top plate and the plurality of supporting through holes on the middle plates are arranged one by one in the height direction.

[0011] The technical solution is further described below:

[0012] In one embodiment, the top plate and the plurality of middle plates each include a plate body and a plurality of first guide members, the plate body is provided with a plurality of connection holes penetrating the plate body at intervals, the first guide member includes a connection portion and a guide portion connected to each other, a plurality of the connection portions are provided in correspondence with each other at the plurality of connection holes, the guide portion is located on a side of the plate body facing the top end of the frame body, a straight hole is provided on the connection portion, a variable diameter hole is provided on the guide portion, the diameter of the variable diameter hole gradually increases along the height direction, and the variable diameter hole is connected to the straight hole to form the support through hole;

[0013] A plurality of second guide members are provided on one side of the bottom plate away from the bottom end of the frame, and guide holes extending along the height direction are opened on the plurality of second guide members, and the apertures of the guide holes gradually increase along the height direction. The plurality of guide holes and the plurality of supporting through holes provided on the top plate are arranged one by one in the height direction.

[0014] In one embodiment, the number of the shelf layers is three;

[0015] And / or, the number of the intermediate plates is two.

[0016] In one of the embodiments, a marking piece is provided on a side of the top plate away from the bottom end of the frame, and the marking piece is used to identify the multiple supporting through holes on the top plate;

[0017] And / or, a lifting lug is provided at one end of the uppermost shelf among the at least two shelf layers, facing away from the bottom end of the frame body.

[0018] In one of the embodiments, one of the two adjacent shelf layers is provided with a first positioning portion, and the other is provided with a second positioning portion, and the first positioning portion is cooperatively connected with the second positioning portion.

[0019] In one embodiment, one of the first positioning portion and the second positioning portion is a positioning pin, and the other is a positioning hole.

[0020] In one embodiment, the at least two frame layers each include a plurality of columns, the plurality of columns are spaced apart from each other, the bottoms of two adjacent columns are connected by a bottom beam, the tops of two adjacent columns are connected by a top beam, two cross-arranged oblique beams are provided between the two adjacent columns, one end of the two oblique beams are respectively connected to the top and bottom of one of the two adjacent columns, and the other end of the two oblique beams are respectively connected to the bottom and top of the other of the two adjacent columns.

[0021] In one embodiment, the storage device further includes a horizontal adjustment mechanism, which is drivingly connected to the frame and can adjust the verticality of the frame.

[0022] In one embodiment, the storage device also includes a supporting plate, which is arranged on a side of the frame away from the top, and the horizontal adjustment mechanism includes a plurality of angular adjustment components, which are arranged at intervals on the outer periphery of the frame, and the angular adjustment components include a screw, a nut, a guide sleeve and a rotating seat, the rotating seat is fixedly connected to the frame, the guide sleeve is arranged on a side of the rotating seat facing the bottom end of the frame, and is fixedly connected to the rotating seat, the nut is rotatably mounted on the rotating seat and abuts against the guide sleeve, the screw is threadedly connected to the nut, the screw extends along the height direction, and one end of the screw facing the bottom end of the frame passes through the nut, the rotating seat and the guide sleeve, and abuts against the supporting plate.

[0023] In one embodiment, a base is provided on the side of the supporting plate facing the frame, and the base is arranged opposite to the bottom plate. The storage device also includes a universal joint and a plurality of support beams. The universal joint includes a ball head and a support rod connected to the ball head. The ball head is rotatably mounted on the base, and one end of the support rod facing away from the ball head is fixedly connected to the bottom plate. One end of the support beam is connected to the support rod, and the other end is connected to the bottom plate.

[0024] In the above storage device, the bottom plate, the plurality of middle plates and the top plate are arranged in sequence along the height direction, and the plurality of support through holes on the top plate and the plurality of support through holes on the middle plate are arranged in a one-to-one correspondence in the height direction, so that when the control rod driving rod is lifted out from the reactor upper internals, the bottom of the control rod driving rod can be aligned with the support through holes on the top plate, so that when the control rod driving rod is gradually moved downward, the bottom of the control rod driving rod can pass through the top plate and the middle plates in sequence and abut against the bottom plate, so that the control rod driving rod can be kept in a vertical state after being stored, avoiding tipping to one side, thereby reducing the tipping risk of the storage device, and ensuring that the storage device can stably and reliably store the control rod driving rod. When the number of support through holes on the top plate is the same as the number of control rod driving rods of the control rod guide cylinder, the storage device can store all the control rod driving rods drawn out from the control rod guide cylinder. However, since the control rod guide cylinder has a large number of control rod driving rods and a long length, the overall volume of the storage device will be relatively large. Therefore, when the frame is formed by at least two detachable connection layers, the storage device has the characteristic of easy disassembly and assembly, so that when the storage device is transported, the storage device can be split into multiple parts to reduce the difficulty and risk of transportation and improve the convenience of transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application.

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0027] In addition, the drawings are not drawn to a 1:1 scale, and the relative sizes of the various elements are drawn only as examples in the drawings and are not necessarily drawn according to the true scale.

[0028] FIG. 1 is a front view schematic diagram of the structure of a storage device in one embodiment of the present application.

[0029] FIG. 2 is a schematic diagram of a top view of the storage device in an embodiment of the present application.

[0030] FIG. 3 is a schematic cross-sectional structural diagram of the third frame layer in one embodiment of the present application.

[0031] FIG. 4 is a schematic diagram of a local enlarged structure of the structure shown in FIG. 3 at point A. FIG.

[0032] FIG. 5 is a schematic structural diagram of a first shelf layer and a horizontal adjustment mechanism in an embodiment of the present application.

[0033] FIG. 6 is a schematic diagram of the structure of the second shelf layer in one embodiment of the present application.

[0034] FIG. 7 is a schematic cross-sectional view of the angle adjustment assembly in one embodiment of the present application.

[0035] FIG8 is a schematic diagram of a cross-sectional structure of a universal joint in an embodiment of the present application.

[0036] Description of reference numerals:

[0037] 200, storage device; 1, frame; 10, shelf layer; 11, first shelf layer; 111, lifting ear; 12, second shelf layer; 13, third shelf layer; 110, top beam; 120, column; 130, cross beam; 140, bottom beam; 150, first positioning part; 2, horizontal adjustment mechanism; 20, angular adjustment component; 21, screw rod; 22, guide sleeve; 23, rotating seat; 24, nut; 25, guide cover; 3, bearing plate; 31, base; 4, support beam; 5, universal joint; 51, ball head; 52, support rod; 61, top plate; 62, middle plate; 63, bottom plate; 631, second guide member; 610, plate body; 620, first guide member; 621, connecting part; 621a, straight hole; 622, guide part; 622a, variable diameter hole; 6a, supporting through hole; 7, marking member. DETAILED DESCRIPTION

[0038] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0039] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, these terms indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0040] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0041] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0042] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0043] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0044] In some related technologies, the storage device for storing control rod driving rods is a storage rack placed at the side of the reactor water pool. However, due to the small available area at the side of the reactor water pool, the storage capacity is relatively small, such as only four control rod driving rods can be stored. This makes the storage device only suitable for storing control rod driving rods within the reactor water pool, and cannot meet the inspection requirement of hoisting out all control rod driving rods of the control rod guide cylinder as a whole (generally, the number of control rod driving rods of the control rod guide cylinder can be dozens, such as 61). This also results in the need to hoist the control rod driving rods back and forth when inspecting or replacing the control rod guide cylinder, which leads to low inspection efficiency.

[0045] Based on this, referring to FIG. 1 and FIG. 2 , an embodiment of the present application provides a storage device 200 for storing control rod drive rods, including a frame 1, a top plate 61, a bottom plate 63 and a plurality of intermediate plates 62. Among them:

[0046] As shown in FIG. 1 , FIG. 2 and FIG. 3 , the frame 1 is a frame structure, and the frame 1 includes at least two frame layers 10 stacked in sequence along the height direction, and the two adjacent frame layers 10 are detachably connected, wherein the height direction is the direction from the bottom end of the frame 1 to the top end of the frame 1. The top plate 61 is arranged at the top end of the frame 1. The bottom plate 63 is arranged at the lowest frame layer 10 among the at least two frame layers 10. A plurality of intermediate plates 62 are arranged on the frame 1 and are located between the top plate 61 and the bottom plate 63, and the bottom plate 63, the plurality of intermediate plates 62 and the top plate 61 are arranged in sequence and spaced relative to each other along the height direction. A plurality of supporting through holes 6a are provided on the top plate 61 and each intermediate plate 62 along the height direction, and the plurality of supporting through holes 6a on the top plate 61 and the plurality of supporting through holes 6a on the intermediate plate 62 are arranged relative to each other in a one-to-one correspondence in the height direction.

[0047] In the above-mentioned storage device 200, the bottom plate 63, the plurality of middle plates 62 and the top plate 61 are arranged in sequence and spaced apart in the height direction, and the plurality of supporting through holes 6a on the top plate 61 and the plurality of supporting through holes 6a on the middle plate 62 are arranged in a one-to-one correspondence with each other in the height direction, so that when the control rod driving rod is hoisted out from the upper internals of the reactor, the bottom of the control rod driving rod can be aligned with the supporting through hole 6a on the top plate 61, so that when the control rod driving rod is gradually moved downward, the bottom of the control rod driving rod can sequentially pass through the supporting through hole 6a on the top plate 61 and the supporting through holes 6a on each middle plate 62, and abut against the bottom plate 63, so that the control rod driving rod can be kept in a vertical state after being stored, and can be prevented from tipping over to one side, thereby reducing the tipping risk of the storage device 200, and ensuring that the storage device 200 can stably and reliably store the control rod driving rod. When the number of the plurality of supporting through holes 6a on the top plate 61 is the same as the number of the control rod driving rods of the control rod guide cylinder, the storage device 200 can store all the control rod driving rods drawn out of the control rod guide cylinder. Since the number of the control rod driving rods of the control rod guide cylinder is large and the length is long, the overall volume of the storage device 200 will be relatively large. Therefore, when the frame 1 is formed by detachably connecting at least two frame layers 10, the storage device 200 has the characteristic of convenient assembly and disassembly, so that when the storage device 200 is transported, the storage device 200 can be split into multiple parts to reduce the difficulty and risk of transportation and improve the convenience of transportation.

[0048] Among them, the multiple supporting through holes 6a on the top plate 61 and the multiple supporting through holes 6a on the middle plate 62 are arranged relative to each other in the height direction, which means that the supporting through holes 6a on the top plate 61 and the corresponding supporting through holes 6a on the middle plate 62 are arranged opposite to each other in the height direction, that is, when projected in the height direction, the projection centers of the multiple supporting through holes 6a on the top plate 61 and the projection centers of the multiple supporting through holes 6a on the middle plate 62 coincide one by one, thereby ensuring that when the control rod driving rod moves downward from the top end of the frame body 1 in the vertical direction, it can pass through the supporting through holes 6a on the fixed top plate 61 and the supporting through holes 6a on the middle plate 62 in sequence.

[0049] Specifically, the number of the supporting through holes 6a on the top plate 61 can be set according to the number of the control rod driving rods in the control rod guide cylinder. For example, when there are 61 groups of control rod driving rods in the control rod guide cylinder, the number of the supporting through holes 6a on the top plate 61 should be 61, so that the storage device 200 can store all the control rod driving rods removed during the wear inspection, avoiding the need to hoist the control rod driving rods back and forth during the inspection process to make room for the newly removed control rod driving rods, thereby helping to improve the maintenance process and maintenance efficiency. Alternatively, when there are 61 groups of control rod driving rods in the control rod guide cylinder, the number of the supporting through holes 6a on the top plate 61 should be 61,

[0050] The storage device 200 can be installed on the support platform of the lower internal components of the reactor by means of measurement and calculation, so that the storage device 200 can be placed next to the reactor component pool without affecting the travel of the refueling trolley, thereby enabling the storage device to store all the control rod drive rods and ensuring the smooth progress of the control rod drive rod lifting process.

[0051] Optionally, two adjacent shelf layers 10 may be connected by a screw to improve the convenience of assembly and disassembly of the frame 1.

[0052] In one embodiment, in combination with Figures 2, 3, 4 and 5, the top plate 61 and the multiple middle plates 62 each include a plate body 610 and a multiple first guide members 620, the plate body 610 is provided with multiple connection holes that penetrate the plate body at intervals, the first guide member 620 includes a connecting portion 621 and a guiding portion 622 that are connected to each other, the multiple connecting portions 621 are arranged in a one-to-one correspondence at the multiple connecting holes, the guiding portion 622 is located on the side of the plate body 610 facing the top of the frame body 1, a straight hole 621a is opened on the connecting portion 621, and a variable diameter hole 622a is opened on the guiding portion 622, the diameter of the variable diameter hole 622a gradually increases along the height direction, and the variable diameter hole 622a is connected to the straight hole 621a to form a supporting through hole 6a. A plurality of second guide members 631 are provided on one side of the bottom plate 63 away from the bottom end of the frame body 1. The plurality of second guide members 631 are provided with guide holes extending in the height direction. The diameters of the guide holes gradually increase in the height direction. The plurality of guide holes are arranged opposite to the plurality of support through holes 6a provided on the top plate 61 in the height direction. In this way, through the guidance of the variable diameter hole 622a in the first guide member 620 and the guide hole in the second guide member 631, it can be ensured that the control rod driving rod will not be scratched by the structure on the storage during the downward and upward movement, thereby avoiding the wear of the control rod driving rod.

[0053] In one embodiment, as shown in FIG. 1 , FIG. 3 , FIG. 5 and FIG. 6 , the number of the rack layers 10 is three. In this way, the rack body 1 can be split into three parts to improve the convenience of transportation, and the assembly of the rack body 1 is more convenient. Among them, the three rack layers 10 are stacked in the height direction to form the first rack layer 11, the second rack layer 12 and the third rack layer 13 in sequence, the top plate 61 can be arranged on the third rack layer 13, and the bottom plate 63 can be arranged on the first rack layer 11.

[0054] In other embodiments, the number of the shelves 10 may also be set as needed, for example, two, four or more.

[0055] In one embodiment, as shown in FIG1 , FIG3 and FIG5 , there are two intermediate plates 62 , so that the top plate 61 and the two intermediate plates 62 can effectively support the control rod drive rods in the height direction to ensure the stability of the storage device 200 .

[0056] Optionally, the positions of the two middle plates 62 can be set according to actual conditions. For example, in combination with FIG. 1 , FIG. 3 and FIG. 5 , in one embodiment, one of the two middle plates 62 can be arranged at the third shelf 13, such as the bottom end of the third shelf 13, and the other middle plate 62 can be arranged at the first shelf 11, such as the top end of the first shelf 11; or, in another embodiment, the two middle plates 62 can also be arranged in the second shelf 12, such as the top end and the bottom end of the second shelf 12. Alternatively, in another embodiment, one of the two middle plates 62 is arranged in the first shelf 11 or the third shelf 13, and the other is arranged in the second shelf 12.

[0057] In other embodiments, the number of the intermediate plates 62 may be three, four or more, and the plurality of intermediate plates 62 may be spaced apart between the bottom plate 63 and the top.

[0058] In one embodiment, as shown in FIG2 , a marking member 7 is provided on one side of the top plate 61 away from the bottom end of the frame 1, and the marking member 7 is used to mark the multiple support through holes 6a on the top plate 61. In this way, the multiple support through holes 6a can be matched with the multiple control rod driving rods that are pulled out through the marking member 7, so that during the hoisting process of the control rod driving rods, the hoisting can be performed in sequence, ensuring that the hoisting and re-hoisting positions of the control rod driving rods correspond to each other, reducing the mixed installation deviation of the control rod driving rods caused by the hoisting by personnel, and improving the work efficiency.

[0059] In one embodiment, in combination with FIG. 1 , FIG. 2 and FIG. 3 , a lifting lug 111 is provided at one end of the uppermost shelf 10 of at least two shelf layers 10 which is away from the bottom end of the frame body 1. In this way, when assembling the frame body 1, the uppermost shelf 10 can be lifted to the top of the next shelf layer 10 adjacent thereto by the lifting lug 111, so that the two shelf layers 10 are assembled. In addition, when the number of shelf layers 10 is large, multiple shelf layers 10 connected to the uppermost shelf layer 10 can be lifted by the lifting lug 111, so that multiple shelf layers 10 can be lifted to the top of the next shelf layer 10, so as to realize the assembly of the frame body 1.

[0060] For example, in combination with FIG. 1 and FIG. 3 , when the frame 1 includes a first frame layer 11, a second frame layer 12, and a third frame layer 13 stacked in the height direction, the lifting lug 111 can be provided at the top of the third frame layer 13, so that the third frame layer 13 can be lifted to the top of the second frame layer 12 by the lifting lug 111, thereby connecting the second frame layer 12 and the third frame layer 13. In addition, the connected second frame layer 12 and the third frame layer 13 can also be lifted to the top of the first frame layer 11 by the lifting lug 111, thereby connecting the second frame layer 12 and the first frame layer 11, so as to facilitate the assembly of the frame 1.

[0061] Optionally, the number of the lifting ears 111 may be multiple, such as two, three or four, and the multiple lifting ears 111 are arranged at intervals.

[0062] In one embodiment, as shown in FIG3, FIG5 and FIG6, one of the two adjacent shelf layers 10 is provided with a first positioning portion 150, and the other is provided with a second positioning portion, and the first positioning portion 150 is matched and connected with the second positioning portion. In this way, when assembling the frame 1, the two adjacent shelf layers 10 can be positioned by the matching connection between the first positioning portion 150 and the second positioning portion, thereby ensuring the accuracy of the connection.

[0063] In addition, the matching connection between the first positioning portion 150 and the second positioning portion is also helpful to ensure the alignment between the various plates arranged on the frame 1, thereby ensuring that the supporting through hole 6a on the top plate 61 can be arranged relative to the supporting through hole 6a on the middle plate 62, and further helping to ensure the stability of the storage device 200 when storing the control rod drive rod.

[0064] For example, as shown in FIG. 3, FIG. 5 and FIG. 6, when the frame 1 includes a first frame layer 11, a second frame layer 12 and a third frame layer 13 stacked in the height direction, the third frame layer 13 may be provided with a first positioning portion 150, and the second frame layer 12 may be provided with a second positioning portion, so that when the second frame layer 12 and the third frame layer 13 are assembled, the first positioning portion 150 and the second positioning portion can be positioned and matched to improve the assembly efficiency. Among them, the first positioning portion 150 can be provided at an end of the third frame layer 13 close to the bottom end of the frame 1, and the second positioning portion can be provided at an end of the second frame layer 12 close to the top end of the frame 1. In addition, the second frame layer 12 may be provided with a first positioning portion 150, and the second frame layer 12 may be provided with a second positioning portion, so that the efficiency of assembling the second frame layer 12 and the first frame layer 11 can be improved by the first positioning portion 150 and the second positioning portion. Among them, the first positioning portion 150 can be provided at an end of the second frame layer 12 away from the third frame layer 13, and the second positioning portion can be provided at an end of the first frame layer 11 facing the second frame layer 12.

[0065] Optionally, in combination with FIG. 3 and FIG. 5 , in one embodiment, one of the first positioning portion 150 and the second positioning portion is a positioning pin, and the other is a positioning hole. In this way, during the assembly process, only the positioning pin needs to be inserted into the positioning hole to preliminarily align and connect the two corresponding shelf layers 10, which is conducive to improving assembly efficiency.

[0066] In one embodiment, as shown in FIG. 3 , FIG. 5 and FIG. 6 , at least two racks 10 each include a plurality of columns 120, and the plurality of columns 120 are arranged at intervals from each other. The bottoms of two adjacent columns 120 are connected by a bottom beam 140, and the tops of two adjacent columns 120 are connected by a top beam 110. Two cross-arranged oblique beams are arranged between the two adjacent columns 120, and one end of the two oblique beams is respectively connected to the top and bottom of one of the two adjacent columns 120, and the other end of the two oblique beams is respectively connected to the bottom and top of the other of the two adjacent columns 120. In this way, each rack 10 can form a stable structure, so that when the racks 10 are connected to form a rack 1, the stability and reliability of the rack 1 are high, which is conducive to stably and reliably supporting the control rod drive rod.

[0067] Optionally, the number of columns can be designed as needed, for example, the number of columns 120 can be four, and the four columns 120 are respectively arranged at the four corners of the rectangle to form a rectangular arrangement. In other embodiments, the number of columns can also be three, five, six or more.

[0068] In one embodiment, as shown in FIG. 1 and FIG. 5 , the storage device 200 further includes a horizontal adjustment mechanism 2, which is drivingly connected to the frame 1, and the horizontal adjustment mechanism 2 can adjust the verticality of the frame 1. In this way, when the ground supporting the storage device 200 is not horizontal, for example, when the ground is an inclined plane, the angle between the height direction and the vertical direction of the frame 1 can be adjusted by the horizontal adjustment mechanism 2, so that the frame 1 can be maintained in a horizontal state, so that when the control rod driving rod is placed in the storage device 200, the storage device 200 will not tilt to one side, thereby reducing the risk of the storage device 200 tipping over and improving the stability of the storage device 200. Among them, the verticality of the frame 1 refers to the degree of inclination of the frame 1 relative to the horizontal plane, that is, the angle between the height direction of the frame 1 and the horizontal plane.

[0069] Further, in one embodiment, in combination with FIG. 5 and FIG. 7 , the storage device 200 further includes a support plate 3, the support plate 3 is arranged on the side of the frame 1 away from the top, the horizontal adjustment mechanism 2 includes a plurality of angle adjustment components 20, the plurality of angle adjustment components 20 are arranged at intervals on the outer periphery of the frame 1, the angle adjustment component 20 includes a screw 21, a nut 24, a guide sleeve 22 and a rotating seat 23, the rotating seat 23 is fixedly connected to the frame 1, the guide sleeve 22 is arranged on the side of the rotating seat 23 facing the bottom end of the frame 1, and is fixedly connected to the rotating seat 23, the nut 24 is rotatably mounted on the rotating seat 23 and abuts against the guide sleeve 22, the screw 21 is threadedly connected to the nut 24, the screw 21 extends in the height direction, and one end of the screw 21 facing the bottom end of the frame 1 passes through the nut 24 and the rotating seat 23 and abuts against the support plate 3. In this way, the frame 1 can be placed on the support plate 3 through the screws 21 in the plurality of angle adjustment components 20. When the spiral screw 21 is rotated, the screw 21 can drive the nut 24 threadedly connected thereto to rise or fall along the screw 21, thereby driving the rotating seat 23 to rise or fall, so as to drive one corner of the frame 1 to rise or fall, thereby realizing the rotation of the frame 1 around the horizontal plane, thereby changing the angle between the height direction and the vertical direction of the frame 1, and realizing the horizontal placement of the frame 1.

[0070] Optionally, as shown in FIG. 1 and FIG. 5 , the number of the angle adjustment components 20 is four, and the rotating seats 23 in the four angle adjustment components 20 can be fixedly connected to the four columns 120 in the bottom shelf 10 (such as the first shelf 11) in a one-to-one correspondence.

[0071] Optionally, the end of the nut 24 facing the top of the frame 1 can pass through the rotating seat 23, and a guide cover 25 is provided around the outer periphery thereof, and a guide hole is formed in the guide cover 25, which is connected to the hole of the nut 24 and gradually increases in height. In this way, when the screw rod 21 needs to be rotated, the long rod workpiece used to drive the screw rod 21 to rotate can be inserted into the hole of the nut 24 under the guidance of the guide hole and connected to the end of the screw rod 21 facing the top of the frame 1, so as to rotate the screw rod 21.

[0072] Optionally, the nut 24 is a T-nut 24 .

[0073] Further, in one embodiment, as shown in combination with FIG. 5 and FIG. 8 , a base 31 is provided on the side of the bearing plate 3 facing the frame 1, and the base 31 is arranged opposite to the bottom plate 63. The storage device 200 also includes a universal member 5 and a plurality of support beams 4. The universal member 5 includes a ball head 51 and a support rod 52 connected to the ball head 51. The ball head 51 is rotatably mounted on the base 31. The end of the support rod 52 away from the ball head 51 is fixedly connected to the bottom plate 63. One end of the support beam 4 is connected to the support rod 52, and the other end is connected to the bottom plate 63. In this way, when the screw 21 is rotated to drive the frame 1 to rotate around the horizontal plane, the ball head 51 can rotate in the base 31, so as to adjust the angle between the extension direction of the support rod 52 and the vertical direction, thereby ensuring that when the frame 1 rotates, the universal member 5 can always effectively support the frame 1 to transfer the load on the frame 1 to the bearing plate 3 at the bottom. The setting of the support beam 4 can replicate the role of the link, which can improve the reliability of the universal joint support.

[0074] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0075] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A storage device for storing control rod drive rods, characterized in that: include: A frame body, wherein the frame body is a frame structure, and the frame body comprises at least two frame layers stacked in sequence along a height direction, and two adjacent frame layers are detachably connected, wherein the height direction is a direction from the bottom end of the frame body to the top end of the frame body; A top plate, the top plate being arranged at the top of the frame; A bottom plate, the bottom plate being arranged on the lowest shelf layer among the at least two shelf layers; A plurality of intermediate plates, the plurality of intermediate plates are arranged on the frame and located between the top plate and the bottom plate, and the bottom plate, the plurality of intermediate plates and the top plate are arranged opposite to each other in sequence and at intervals along the height direction; The top plate and each of the middle plates are provided with a plurality of supporting through holes penetrating along the height direction, and the plurality of supporting through holes on the top plate and the plurality of supporting through holes on the middle plates are arranged one by one in the height direction.

2. The storage device according to claim 1, characterized in that: The top plate and the plurality of middle plates each include a plate body and a plurality of first guide members, the plate body is provided with a plurality of connection holes penetrating the plate body at intervals, the first guide member includes a connection portion and a guide portion connected to each other, a plurality of the connection portions are provided in correspondence with the plurality of connection holes, the guide portion is located on a side of the plate body facing the top end of the frame body, a straight hole is provided on the connection portion, a variable diameter hole is provided on the guide portion, the diameter of the variable diameter hole gradually increases along the height direction, and the variable diameter hole is connected with the straight hole to form the support through hole; A plurality of second guide members are provided on one side of the bottom plate away from the bottom end of the frame, and guide holes extending along the height direction are opened on the plurality of second guide members, and the apertures of the guide holes gradually increase along the height direction. The plurality of guide holes and the plurality of supporting through holes provided on the top plate are arranged one by one in the height direction.

3. The storage device according to claim 2, characterized in that: The number of the shelves is three; And / or, the number of the intermediate plates is two.

4. The storage device according to claim 1, characterized in that: A marking piece is provided on one side of the top plate away from the bottom end of the frame, and the marking piece is used to mark the multiple supporting through holes on the top plate; And / or, a lifting lug is provided at one end of the uppermost shelf among the at least two shelf layers, facing away from the bottom end of the frame body.

5. The storage device according to claim 1, characterized in that: One of the two adjacent shelf layers is provided with a first positioning portion, and the other is provided with a second positioning portion, and the first positioning portion is cooperatively connected with the second positioning portion.

6. The storage device according to claim 5, characterized in that: One of the first positioning portion and the second positioning portion is a positioning pin, and the other is a positioning hole.

7. The storage device according to claim 1, characterized in that: The at least two frame layers each include a plurality of columns, the plurality of columns are spaced apart from each other, the bottoms of two adjacent columns are connected by a bottom beam, the tops of two adjacent columns are connected by a top beam, two cross-arranged oblique beams are provided between the two adjacent columns, one end of the two oblique beams are respectively connected to the top and bottom of one of the two adjacent columns, and the other end of the two oblique beams are respectively connected to the bottom and top of the other of the two adjacent columns.

8. The storage device according to claim 1, characterized in that: The storage device also includes a horizontal adjustment mechanism, which is drivingly connected to the frame and can adjust the verticality of the frame.

9. The storage device according to claim 8, characterized in that: The storage device also includes a supporting plate, which is arranged on a side of the frame away from the top, the horizontal adjustment mechanism includes a plurality of angular adjustment components, and the plurality of angular adjustment components are arranged at intervals on the outer periphery of the frame, the angular adjustment components include a screw, a nut, a guide sleeve and a rotating seat, the rotating seat is fixedly connected to the frame, the guide sleeve is arranged on a side of the rotating seat facing the bottom end of the frame, and is fixedly connected to the rotating seat, the nut is rotatably mounted on the rotating seat and abuts against the guide sleeve, the screw is threadedly connected to the nut, the screw extends along the height direction, and one end of the screw facing the bottom end of the frame passes through the nut, the rotating seat and the guide sleeve, and abuts against the supporting plate.

10. The storage device according to claim 9, characterized in that: A base is provided on the side of the supporting plate facing the frame, and the base is arranged opposite to the bottom plate. The storage device also includes a universal joint and a plurality of support beams. The universal joint includes a ball head and a support rod connected to the ball head. The ball head is rotatably mounted on the base, and one end of the support rod facing away from the ball head is fixedly connected to the bottom plate. One end of the support beam is connected to the support rod, and the other end is connected to the bottom plate.

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