Nuclear power radioactive contamination lifting tool storage cabinet

Abstract

The utility model discloses a nuclear power radioactive contamination hoisting tool storage cabinet, which belongs to the technical field of heavy tool storage and comprises a cabinet body frame, a hoisting bolt, a lead sheath, a partition plate, a hook, a first partition and a second partition. By means of the structural design, the lead sheath has high flexibility, the containing groove is arranged and matched with the sliding rail, the lead sheath door is contained in the containing groove after being opened, and the occupied space is reduced; by means of sliding connection between the first sliding grooves and the moving rods, the partition plates are driven to move, the inner space of the frame is roughly divided into three parts, articles can be conveniently classified and placed, and the three spaces can be conveniently distributed according to the size; the cabinet body frame is wrapped by the lead sheath so as to reduce irradiation of the radioactive lifting tools to the outside, the collective dosage is effectively reduced, the radioactive tools are blocked by the frame and the lead sheath after being stored, and the contamination risk of workers is reduced.

Description

Technical Field

[0001] This utility model relates to the field of heavy equipment storage technology, and in particular to a storage cabinet for nuclear power plant radioactive contamination lifting equipment. Background Technology

[0002] Nuclear power plant circular cranes are key equipment in the construction and operation of nuclear power plants. The circular cranes are set on the 20-34m platform of the reactor building, with a compact spatial layout, and are responsible for hoisting maintenance equipment inside the reactor and assisting in reactor refueling work.

[0003] During unit overhauls, lifting and hoisting operations are frequent, requiring the use of radioactive tools. Statistics show that over 60% of hoisting operations in China use red plastic bags to store radioactive tools, categorized by type such as slings, shackles, safety belts, and hand-operated hoists. These tools must be rummaged through the bags for use. The handling of radioactive lifting tools poses risks such as personnel contamination, excessive radiation doses, and ground contamination. Furthermore, these tools require significant space, are inconvenient to use, and make it difficult to easily retrieve the necessary equipment. Utility Model Content

[0004] The purpose of this invention is to solve the problems mentioned in the background art by designing a storage cabinet for lifting equipment contaminated by radioactive materials from nuclear power plants.

[0005] To achieve the above objectives, the technical solution of this utility model is a storage cabinet for lifting equipment used in nuclear power plants that is contaminated with radioactive materials. The cabinet frame has an inlet and outlet on its front side. Except for the inlet and outlet surfaces, the other surfaces of the cabinet frame are covered with lead sheeting. The inlet and outlet are equipped with a closing mechanism. Several horizontal bars are fixedly installed on the top of the cabinet frame parallel to the width direction. Hooks are movably connected to the bottom of the horizontal bars. A reinforcing rod is fixedly installed at the lower center of the front of the cabinet frame. A first partition is fixedly installed above the reinforcing rod. The first partition is a plane that divides the internal space of the cabinet frame into upper and lower parts. A second partition is fixedly installed between every two horizontal bars in the upper space of the cabinet frame. Several threaded holes are opened on the top of the cabinet frame, and lifting bolts are threaded into the threaded holes.

[0006] Preferably, a first groove is provided at the lower end of the crossbar, and several hook sliders are movably installed in the first groove, with the hook sliders located at the top of the hooks.

[0007] Preferably, the inner side of the reinforcing rod is provided with a second sliding groove, and a slider is movably connected inside the second sliding groove. The slider is located at both ends above the partition.

[0008] Preferably, the closing mechanism includes a storage slot, a first lead-sheet door, a slide rail, a handle, a second lead-sheet door, and a movable block. The storage slot is located inside the left and right walls of the cabinet frame. Several slide rails are located on the outer surface of the cabinet frame and the reinforcing rod. A movable block is movably installed inside the slide rail. The movable block is fixedly installed on one side of the first and second lead-sheet doors. A handle is fixedly installed on the other side of the first and second lead-sheet doors.

[0009] Preferably, both the first lead door and the second lead door are made of lead sheet. Since lead sheet has good ductility, it can be bent and stored in the storage groove during the opening of the first lead door and the second lead door. The length of the first lead door and the second lead door is such that a part of them can be retained in the storage groove whether they are closed or fully open.

[0010] Beneficial effects:

[0011] This utility model provides a storage cabinet for radioactive lifting equipment in nuclear power plants, which has the following advantages: Through its structural design, the device utilizes the strong flexibility of lead sheeting, and incorporates a storage slot and sliding rails. The lead sheeting door can be opened and then retracted into the storage slot, reducing floor space. The sliding connection between the first sliding rail and the moving rod allows the partition to move, roughly dividing the internal space of the frame into three parts, facilitating the classification and placement of items and the allocation of space sizes. The frame is surrounded by lead sheeting to reduce external radiation exposure to the radioactive lifting equipment, effectively lowering the collective dose. The frame and lead sheeting also act as a barrier, reducing contact between workers and the equipment and lowering the risk of contamination. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the nuclear power plant radioactive contamination lifting equipment storage cabinet described in this utility model;

[0013] Figure 2 This is a schematic diagram of the front of the storage cabinet for nuclear power plant radioactive contamination lifting equipment described in this utility model;

[0014] Figure 3 This is a side view of the structure of the storage cabinet for nuclear power plant radioactive contamination lifting equipment described in this utility model;

[0015] Figure 4 This is a structural schematic diagram of the AA cross-section described in this utility model;

[0016] Figure 5 This is a structural schematic diagram of the BB cross-section described in this utility model;

[0017] Figure 6 This is a structural schematic diagram of the CC cross-section of the present invention.

[0018] In the diagram, 1. Cabinet frame, 2. Lifting bolt, 3. Lead sheet, 4. Storage slot, 5. First lead sheet door, 6. Slide rail, 7. Handle, 8. Second lead sheet door, 9. Tray, 10. Partition, 11. Hook, 12. Hook slider, 13. First slide rail, 14. Second slide rail, 15. Slider, 16. Moving block, 17. First partition, 18. Crossbar, 19. Reinforcing bar, 20. Second partition. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] In the description of this utility model, it should be noted that the terms "upper / lower end," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "set / set up," "sleeve," "connection," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral 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 a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] Please see Figure 1-6This utility model provides a technical solution: a storage cabinet for nuclear power plant radioactive contamination lifting equipment, characterized in that the front of the cabinet frame 1 is provided with an inlet and outlet, and the other sides of the cabinet frame 1, except for the inlet and outlet sides, are surrounded by lead sheet 3, which reduces the external radiation of the radioactive lifting equipment and effectively reduces the collective dose. The inlet and outlet are equipped with a closing mechanism. Several horizontal bars 18 are fixedly installed at the top of the cabinet frame 1 parallel to the width direction. Hooks 11 are movably connected below the horizontal bars 18, with the hooks 11 facing the inlet and outlet surfaces of the cabinet frame 1. A reinforcing bar 19 is fixedly installed at the lower center of the front of the cabinet frame 1. A first partition 17 is fixedly installed above the reinforcing bar 19. The first partition 17 is a plane and divides the internal space of the cabinet frame 1 into upper and lower parts. A second partition 20 is fixedly installed between every two horizontal bars 18 in the upper space of the cabinet frame 1. Several partitions 10 are provided in the lower half of the cabinet frame 1. Several threaded holes are opened at the top of the cabinet frame 1, and lifting bolts 2 are threaded into the threaded holes. A first sliding groove 13 is opened at the lower end of the horizontal bar 18. Several hook sliders 12 are movably installed in the first sliding groove 13. The hook sliders 12 are located at the top of the hooks 11, so that the hooks 11 can be adjusted, improving the flexibility of hanging items and making storage and retrieval convenient. The reinforcing rod 19 has a second sliding groove 14 on its inner side. A slider 15 is movably connected inside the second sliding groove 14. The slider 15 is located at both ends above the partition 10, allowing the partition 10 to be adjusted. This allows for the redistribution of space according to the size of the items placed on it, making the item classification clearer. The closing mechanism includes a storage slot 4, a first lead door 5, a slide rail 6, a handle 7, a second lead door 8, and a moving block 16. The storage slot 4 is located inside the left and right walls of the cabinet frame 1. Several slide rails 6 are located on the outer surfaces of the cabinet frame 1 and the reinforcing rod 19. The moving block 16 is movably installed inside the slide rail 6. The moving block 16 is fixedly installed on one side of the first lead door 5 and the second lead door 8. A handle 7 is fixedly installed on the other side of the first lead door 5 and the second lead door 8. Both the first lead door 5 and the second lead door 8 are made of lead sheet. Due to the good ductility of lead sheet, the first lead door 5 and the second lead door 8 can be bent and retracted into the storage groove 4 during the opening process. The installation space of the cabinet frame 1 is relatively small, so the lead door can be retracted into the storage groove 4, reducing the space occupied by the cabinet frame 1 and facilitating the opening of the lead door. In actual use, the lead door does not need to be bent 90°, but only needs to have a certain curvature to enter the storage groove 4. The length of the first lead door 5 and the second lead door 8 allows them to retain a part in the storage groove 4 whether they are closed or fully open, so that the lead door can be smoothly retracted into the storage groove 4.

[0023] In this implementation plan:

[0024] First, the cabinet frame 1 can be placed in the designated position using the hoisting equipment in the factory using the hoisting bolts 2. Then, the first lead door 5 and the second lead door 8 can be pulled by the handle 7, so that the moving block 16 slides in the slide rail 6, and the lead door enters the storage slot 4 after bending to a certain arc. Then, according to the requirements of item placement, items can be hung or placed on the second partition 20 or the tray 9. When hanging, the hook 11 can be pulled, so that the hook slider 12 moves in the first slide groove 13, thereby adjusting the position of the hook 11 to facilitate the storage and retrieval of items. When placing items, the partition 10 can be pushed, so that the slider 15 moves in the second slide groove 14, thereby adjusting the position of the partition 10 and allocating the space under the first partition 17 to facilitate the classification and placement of items. The lead sheet 3 can be hung by the hoisting bolts 2 to reduce the external radiation of radioactive lifting equipment, effectively reduce the collective dose, reduce the contact between operators and equipment, and reduce the risk of contamination for operators.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A nuclear power plant radioactive contamination hoisting tool storage cabinet, characterized by, The front of the cabinet frame (1) is provided with an inlet and outlet, the cabinet frame (1) is surrounded by lead skin (3) except the inlet and outlet surface, the inlet and outlet are provided with a closing mechanism, the top end of the cabinet frame (1) is fixedly installed with a plurality of horizontal rods (18) parallel to the width direction, the horizontal rods (18) are movably connected with hooks (11) below, the front of the cabinet frame (1) is fixedly installed with a reinforcing rod (19) below the middle, the first partition (17) is fixedly installed above the reinforcing rod (19), the first partition (17) is a plane, the first partition (17) divides the internal space of the cabinet frame (1) into two parts, the second partition (20) is fixedly installed between every two horizontal rods (18) in the upper space of the cabinet frame (1), the lower half of the cabinet frame (1) is provided with a plurality of partitions (10), a plurality of threaded holes are formed in the top end of the cabinet frame (1), and hoisting bolts (2) are threadedly connected in the threaded holes.

2. A nuclear power plant radioactive contamination handling tool storage cabinet according to claim 1, characterized in that, The horizontal rods (18) are provided with first sliding grooves (13) at the lower ends, a plurality of hook sliding blocks (12) are movably installed in the first sliding grooves (13), and the hook sliding blocks (12) are located at the top end of the hooks (11).

3. A nuclear power plant radioactive contamination handling tool storage cabinet according to claim 1, characterized in that, The reinforcing rod (19) and the inner side of the cabinet frame (1) are provided with second sliding grooves (14) on the back inner side, and sliding blocks (15) are movably connected in the second sliding grooves (14), and the sliding blocks (15) are located above the two ends of the partition (10).

4. A nuclear power plant radioactive contamination handling tool storage cabinet according to claim 1, characterized in that, The closing mechanism comprises a receiving groove (4), a first lead skin door (5), a sliding rail (6), a handle (7), a second lead skin door (8) and a moving block (16), the receiving groove (4) is formed in the left and right walls of the cabinet frame (1), the sliding rail (6) is formed on the front surface of the cabinet frame (1) and the outer surface of the reinforcing rod (19), the moving block (16) is movably installed in the sliding rail (6), and the moving block (16) is fixedly installed on the upper and lower ends of one side of the first lead skin door (5) and the second lead skin door (8), and the handle (7) is fixedly installed on the other side of the first lead skin door (5) and the second lead skin door (8).

5. A nuclear power radioactive contamination handling tool storage cabinet according to claim 4, characterized in that, The first lead skin door (5) and the second lead skin door (8) are made of lead skin, and due to the good ductility of the lead skin, the first lead skin door (5) and the second lead skin door (8) can be bent and stored in the receiving groove (4) during opening, and the length of the first lead skin door (5) and the second lead skin door (8) can keep a part in the receiving groove (4) whether in closing or completely opening.

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