Transport and storage tooling for nuclear power plant underwater sleeves

Abstract

The application discloses a transfer and storage tool set for a nuclear power plant underwater sleeve, which comprises a lifting tool and a transfer and storage box, wherein the lifting tool comprises a lifting hook for lifting the underwater sleeve, and the hook opening curvature of the lifting hook is matched with a lifting point on the underwater sleeve; the transfer and storage box is used for storing the underwater sleeve and comprises a box body, a turnover support and a plurality of support frames are arranged in the box body, the turnover support can convert the underwater sleeve from a horizontal position to a vertical position or from the vertical position to the horizontal position, and the support frames are used for supporting the underwater sleeve in the horizontal position. By using the transfer and storage tool set, the shaking or falling risk in the lifting process can be effectively reduced, the position adjustment time of the underwater sleeve can be reduced, and the efficiency is improved; in addition, the plurality of support frames are used for supporting the underwater sleeve, and the bending and deformation of the underwater sleeve can be effectively avoided.

Description

Technical Field

[0001] This application relates to the field of offline leak detection equipment technology for nuclear power plants, and more particularly to a transfer and storage tool kit for underwater sleeves in nuclear power plants. Background Technology

[0002] The underwater sleeves in the offline leak detection equipment of nuclear power plants are large in volume and heavy in weight, and need to be in the spent fuel pool for a long time. They need to have good corrosion resistance and radiation resistance. Therefore, they need to be properly transported to avoid deformation or damage to the surface during the transportation process, which would lead to a decrease in corrosion resistance and radiation resistance.

[0003] Existing underwater sleeve transport tools generally consist of a combination of a lifting device and a transport frame. The lifting device is used to lift the underwater sleeve, while the transport frame is used to store the underwater sleeve and assist in its transport. The transport frame consists of upper and lower frames, with the receiving groove of the lower frame and the upper covering groove of the upper frame combining to form a cylindrical space for placing the underwater sleeve. Existing underwater sleeve transport technology has the following drawbacks: First, the matching between general-purpose lifting devices and the lifting points of the underwater sleeve is poor, leading to a risk of swaying or falling off during loading and unloading. Second, there is a lack of dedicated equipment for storing underwater sleeves; the transport frame's support method is simplistic, relying solely on support plates to support both ends of the underwater sleeve. Prolonged placement of the underwater sleeve on the transport frame can easily cause the middle of the sleeve to sag and bend. Third, the transport frame lacks a tilting function, requiring the use of a crane to assist in adjusting the sleeve's direction, resulting in low operational efficiency. Fourth, the underwater sleeve's surface lacks sufficient scratch protection, making it susceptible to damage from contact with hard materials during transport. Utility Model Content

[0004] To address one of the technical problems existing in the prior art, this application provides a transfer and storage tool kit for underwater sleeves in nuclear power plants, enabling safe and efficient operation of the entire process of loading, unloading, flipping, and storing underwater sleeves.

[0005] According to some embodiments of this application, a transfer and storage tool kit for an underwater sleeve in a nuclear power plant is provided, comprising: a lifting device including a hook for lifting the underwater sleeve, the hook's arc matching the lifting point on the underwater sleeve; and a transfer and storage box for storing the underwater sleeve, the box including a box body, the box body being provided with a flipping bracket and several support frames, the flipping bracket being able to convert the underwater sleeve from a horizontal position to a vertical position or from a vertical position to a horizontal position, and the support frames being used to support the underwater sleeve in a horizontal position.

[0006] In some embodiments of this application, the support frame is provided in three or more parts, with at least one support frame provided at both ends and the middle of the underwater sleeve in a horizontal position.

[0007] In some embodiments of this application, the upper part of the support frame is provided with a receiving groove that matches the shape of the underwater sleeve.

[0008] In some embodiments of this application, a flexible buffer pad is provided at the contact position between the receiving groove and the underwater sleeve.

[0009] In some embodiments of this application, the flipping support includes a support member and two support bodies. The support member is rotatably disposed on the upper part of the two support bodies on both sides. The support member drives the underwater sleeve to rotate, so that the underwater sleeve changes from a horizontal position to a vertical position, or from a vertical position to a horizontal position.

[0010] In some embodiments of this application, the support member is provided with a rotating shaft on both sides, and the upper part of the two brackets is provided with a shaft hole corresponding to the rotating shaft, and a bearing is provided in the shaft hole.

[0011] In some embodiments of this application, the flipping bracket further includes a drive device for driving the support member to rotate.

[0012] In some embodiments of this application, a transfer trolley is provided below the transfer storage box.

[0013] In some embodiments of this application, the surface of the hook is made smooth by electropolishing.

[0014] In some embodiments of this application, the lifting device further includes a basket, which, in conjunction with the hook, lifts the underwater sleeve.

[0015] The beneficial effects of this application are as follows: This application provides a transfer and storage tool kit for underwater sleeves in nuclear power plants, including a lifting device and a transfer and storage box. The hook's arc matches the lifting point on the underwater sleeve, effectively reducing the risk of swaying or falling during lifting, lowering the risk by more than 80%. The hook smoothly lifts the underwater sleeve vertically into the transfer and storage box, and a tilting bracket is used to convert the underwater sleeve from a vertical position to a horizontal position for storage. The tilting bracket reduces the direction adjustment time by more than 50%, improving efficiency. When the underwater sleeve is placed horizontally in the transfer and storage box, multiple support frames support the underwater sleeve, effectively preventing bending and deformation. Using the transfer and storage tool kit provided by this application, safe and efficient operation of the entire process of loading, unloading, tilting, and storing underwater sleeves can be easily achieved.

[0016] Other features and advantages of this application will be set forth in the description which follows, and will be apparent in part from the description, or may be learned further by practicing the application. The objectives and other advantages of this application may be realized and obtained by means of the structures particularly pointed out in the description, claims and drawings. Attached Figure Description

[0017] To more clearly illustrate the technical solution of this application, the following description will be provided in conjunction with the accompanying drawings and embodiments. It should be understood that the following drawings only show some embodiments of this application and should not be considered as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort. In the drawings:

[0018] Figure 1 This is a structural schematic diagram of the hook provided in this application;

[0019] Figure 2 A schematic diagram of the transfer and storage box provided in this application.

[0020] Label Explanation:

[0021] 100. Hook; 101. Hook opening curvature; 102. Rounded transition; 110. Locking fastener; 120. Iron chain; 200. Transfer and storage box; 210. Tilting bracket; 211. Support component; 2111. Rotating shaft; 212. Support body; 220. Support frame; 400. Underwater sleeve. Detailed Implementation

[0022] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. Similar elements in different embodiments are referred to by related similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of the present application. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, certain operations related to the present application are not shown or described in the specification. This is to avoid obscuring the core parts of the present application with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.

[0023] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments. At the same time, the steps or actions in the method description can be rearranged or adjusted in a manner obvious to those skilled in the art. Therefore, the various orders in the specification and drawings are only for the clear description of a particular embodiment and do not imply a necessary order, unless otherwise stated that a particular order must be followed.

[0024] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages).

[0025] The following is in conjunction with the appendix Figures 1 to 2 The provided embodiments further illustrate the transfer and storage tool kit for underwater sleeves in nuclear power plants proposed in this application.

[0026] like Figure 1 , Figure 2 As shown, some embodiments of this application provide a transfer and storage tool kit for underwater sleeves in nuclear power plants, including a lifting device and a transfer and storage box 200. The lifting device includes a hook 100 for lifting the underwater sleeve 400, the hook opening arc 101 of which matches the lifting point on the underwater sleeve 400; the transfer and storage box 200 is used to store the underwater sleeve 400, and the transfer and storage box 200 includes a box body, inside which is provided a flipping bracket 210 and a plurality of support frames 220. The flipping bracket 210 can convert the underwater sleeve 400 from a horizontal position to a vertical position, or from a vertical position to a horizontal position, and the support frames 220 are used to support the underwater sleeve 400 in the horizontal position. This application provides a transfer and storage tool kit for an underwater sleeve 400 in a nuclear power plant, including a lifting device and a transfer and storage box 200. The hook 100's hook opening arc 101 matches the lifting point on the underwater sleeve 400, effectively reducing the risk of swaying or falling during lifting, lowering the risk by more than 80%. The hook 100 smoothly lifts the underwater sleeve 400 vertically into the transfer and storage box 200. A flipping bracket 210 is used to convert the underwater sleeve 400 from a vertical position to a horizontal position for storage. The flipping bracket 210 reduces the direction adjustment time by more than 50%, improving efficiency. When the underwater sleeve 400 is placed horizontally in the transfer and storage box 200, multiple support frames 220 support the underwater sleeve 400, effectively preventing bending and deformation. Using the transfer and storage tool kit provided in this application, safe and efficient operation of the entire process of loading, unloading, flipping, and storing the underwater sleeve 400 can be easily achieved.

[0027] like Figure 1 As shown, in some embodiments of this application, the hook 100 has an arc transition 102 at the hook opening, which can effectively prevent the hook 100 from scratching the underwater sleeve 400.

[0028] like Figure 1 As shown, in some embodiments of this application, a locking element 110 is provided at the hook opening of the hook 100. The locking element 110 can only be opened in one direction, and the locking element 110 can prevent the underwater sleeve 400 from coming off during the hoisting process.

[0029] like Figure 1 As shown, in some embodiments of this application, a lifting chain 120 is provided above the hook 100. Both the hook 100 and the chain 120 are made of stainless steel. The chain 120 has a diameter of 8mm and a breaking strength of ≥10 tons, which can effectively support the lifting process of various specifications of underwater sleeves 400. Furthermore, in some embodiments of this application, the surfaces of the hook 100 and the chain 120 are made smooth by electrolytic polishing.

[0030] Furthermore, in some embodiments of this application, the lifting device may also include a basket, which may be constructed of an aluminum alloy frame and a stainless steel wire mesh, and the basket has a load-bearing capacity of ≥2 tons. The basket is used in conjunction with the hook 100 to lift the underwater sleeve 400.

[0031] like Figure 2 As shown, in some embodiments of this application, the support frame 220 is provided with three or more supports. At least one support frame 220 is provided at both ends and the middle of the underwater sleeve 400 in the horizontal position. By providing three or more support frames 220, the underwater sleeve 400 in the horizontal position can be supported at multiple points, effectively preventing the underwater sleeve 400 from bending and deforming.

[0032] In some embodiments of this application, the upper part of the support frame 220 is provided with a receiving groove that matches the shape of the underwater sleeve 400. The receiving groove is an arc-shaped groove, preferably semi-circular. The receiving groove can better restrict the underwater sleeve 400 and prevent the underwater sleeve 400 from shaking during transportation.

[0033] In some embodiments of this application, a flexible buffer sleeve is provided at the contact position between the receiving groove and the underwater sleeve 400. The buffer sleeve can be made of soft materials such as nylon. The buffer sleeve should be able to withstand twice the loading and unloading load. The buffer sleeve is used to achieve non-metallic contact between the underwater sleeve 400 and the support frame 220, thereby reducing the surface damage rate of the underwater sleeve 400.

[0034] like Figure 2As shown, in some embodiments of this application, the flipping support 210 includes a support member 211 and two support bodies 212. The support member 211 is rotatably disposed on the upper part of the two support bodies 212 on both sides. The support member 211 drives the underwater sleeve 400 to rotate so that the underwater sleeve 400 changes from a horizontal position to a vertical position or from a vertical position to a horizontal position. During the process of placing the underwater sleeve 400 into the transfer storage box 200, the hook 100 first steadily lifts the underwater sleeve 400 and places it vertically on the support 211 of the tilting bracket 210. The support 211 drives the underwater sleeve 400 to rotate, changing the underwater sleeve 400 from a vertical position to a horizontal position. The support frame 220 supports the underwater sleeve 400, completing the storage of the underwater sleeve 400. When it is necessary to remove the underwater sleeve 400 from the transfer storage box 200, the support 211 drives the underwater sleeve 400 to rotate, changing the underwater sleeve 400 from a horizontal position to a vertical position. Then, the hook 100 is used to connect the lifting points of the underwater sleeve 400 to lift the underwater sleeve 400 out of the transfer storage box 200.

[0035] like Figure 2 As shown, specifically, in some embodiments of this application, the support member 211 is provided with a rotating shaft 2111 on both sides, and the upper part of the two bracket bodies 212 is provided with shaft holes corresponding to the rotating shaft 2111. Bearings are provided in the shaft holes, which can effectively protect the rotating shaft 2111 and extend the service life of the rotating shaft 2111.

[0036] Furthermore, in some embodiments of this application, the flipping bracket 210 also includes a drive device for driving the support member 211 to rotate. The drive device can be a motor, a cylinder, or a hydraulic device, etc., and the drive device is connected to the support member 211 through a compatible transmission assembly. For example, in some specific embodiments of this application, the drive device is a motor, the transmission assembly is a pulley transmission assembly, one pulley of the pulley transmission assembly is connected to the output shaft of the motor, and the other pulley of the pulley transmission assembly is connected to the rotating shaft 2111. The motor drives the support member 211 to rotate through the pulley transmission assembly.

[0037] In some embodiments of this application, a transfer trolley is provided below the transfer storage box 200. The transfer trolley can move the transfer storage box 200 and the underwater sleeve 400 inside the transfer storage box 200 to a designated area to realize the transfer of the underwater sleeve 400.

[0038] It is understood that the above embodiments only illustrate preferred embodiments of this application, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this application. It should be noted that, for those skilled in the art, without departing from the concept of this application, the above technical features can be freely combined, and several modifications and improvements can be made, all of which fall within the protection scope of this application. Therefore, all equivalent transformations and modifications made within the scope of the claims of this application should fall within the coverage of the claims of this application.

Claims

1. A transfer and storage tool kit for underwater sleeves in nuclear power plants, characterized in that, include: The lifting device includes a hook for lifting an underwater sleeve, the curvature of the hook opening matching the lifting point on the underwater sleeve; A transfer and storage box is used to store the underwater sleeve. The transfer and storage box includes a box body, and a flip-up bracket and several support frames are provided inside the box body. The flip-up bracket can convert the underwater sleeve from a horizontal position to a vertical position or from a vertical position to a horizontal position. The support frames are used to support the underwater sleeve when it is in a horizontal position.

2. The transfer and storage tool kit for underwater sleeves in nuclear power plants as described in claim 1, characterized in that, The support frame is provided in three or more parts, with at least one support frame provided at both ends and the middle of the underwater sleeve in a horizontal position.

3. The transfer and storage tool kit for underwater sleeves in nuclear power plants as described in claim 1 or 2, characterized in that, The upper part of the support frame is provided with a receiving groove that matches the shape of the underwater sleeve.

4. The transfer and storage tool kit for underwater sleeves in nuclear power plants as described in claim 3, characterized in that, A flexible buffer pad is provided at the contact point between the receiving groove and the underwater sleeve.

5. The transfer and storage tool kit for underwater sleeves in nuclear power plants as described in claim 1, characterized in that, The flipping support includes a support member and two support bodies. The support member is rotatably mounted on the upper part of the two support bodies on both sides. The support member drives the underwater sleeve to rotate, so that the underwater sleeve changes from a horizontal position to a vertical position, or from a vertical position to a horizontal position.

6. The transfer and storage tool kit for underwater sleeves in nuclear power plants as described in claim 5, characterized in that, The support member is provided with a rotating shaft on both sides, and the upper part of the two brackets is provided with a shaft hole corresponding to the rotating shaft, and a bearing is provided in the shaft hole.

7. The transfer and storage tool kit for underwater sleeves in nuclear power plants as described in claim 6, characterized in that, The flipping bracket also includes a drive device for rotating the support member.

8. The transfer and storage tool kit for underwater sleeves in nuclear power plants as described in claim 1, characterized in that, A transfer trolley is installed below the transfer storage box.

9. The transfer and storage tool kit for underwater sleeves in nuclear power plants as described in claim 1, characterized in that, The surface of the hook is made smooth by electrolytic polishing.

10. The transfer and storage tool kit for underwater sleeves in nuclear power plants as described in claim 1, characterized in that, The lifting device also includes a basket, which, in conjunction with the hook, lifts the underwater sleeve.

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