Device for determining the zero position of a spent fuel assembly to be sheared in a hot cell

Abstract

This application provides an apparatus for determining the zero position of a spent fuel assembly being sheared within a hot chamber. The apparatus includes a main body, a swinging member, a transmission member, a first valve switch, a second valve switch, a trigger member, and a drive member. The main body forms a receiving space. The swinging member includes a first part, a second part, and a third part. When the spent fuel assembly contacts the first part, the first part drives the second and third parts, the third part drives the transmission member, and the transmission member drives the trigger member to activate the first valve switch and move away, indicating the zero position. After the trigger member moves away, the drive member drives the trigger member to move, the trigger member drives the transmission member, the transmission member drives the third part, and the third part drives the second and first parts. When the trigger member activates the second valve switch, the first part moves into the receiving space. The apparatus provided by this application can determine the initial position of the spent fuel assembly and mark the zero position of the spent fuel assembly, facilitating subsequent shearing of the spent fuel assembly.

Description

Technical Field

[0001] Embodiments of this application relate to ancillary devices for shearing beds or shearing equipment, and more specifically to a device for determining the zero position of spent fuel assemblies being sheared in a hot chamber. Background Technology

[0002] The shearing machine is a key piece of equipment for processing spent fuel assemblies. When using the shearing machine to process spent fuel assemblies, it is necessary to determine the initial position of the spent fuel assembly. When shearing the spent fuel assembly, it is necessary to shear in the order of upper end, fuel section, and lower end to separate the end and fuel section. During shearing, the fuel section also needs to be cut into short segments of a specified length for subsequent processing of the spent fuel assembly. Summary of the Invention

[0003] In response to at least one aspect of the above-mentioned technical problems, embodiments of this application provide an apparatus for determining the zero position of a spent fuel assembly undergoing shearing in a hot chamber. The apparatus includes: a main body, a swinging member, a transmission member, a first valve switch, a second valve switch, a trigger member, and a drive member.

[0004] The device body has an internal accommodating space; the swinging component includes a first part, a second part, and a third part, which are integrally formed, with the second part located between the first and second parts, and the third part housed within the accommodating space; a transmission component has one part located within the accommodating space of the device body and another part located on the outside of the device body, with the third part fixedly connected to the transmission component, capable of driving the transmission component to rotate, and the transmission component also capable of driving the third part to rotate; a first valve switch is located at a first predetermined position on the outside of the device body, and a second valve switch is located at a second predetermined position on the outside of the device body; one end of a trigger is fixed to the transmission component, and the other end can trigger the first and second valve switches, and the transmission component can drive the trigger to rotate, and the trigger can drive the transmission component to rotate; a drive component is fixed to the outside of the device body and is configured to drive the trigger to rotate between the first and second predetermined positions.

[0005] The device is configured such that when the spent fuel assembly contacts the first part, the first part drives the second and third parts to rotate, the third part drives the transmission component to rotate, the transmission component drives the trigger component to leave the first predetermined position, and triggers the first valve switch located at the first predetermined position. At this time, the position of the spent fuel assembly is zero. When the trigger component leaves the first predetermined position, the drive component drives the trigger component to move to the second predetermined position. During the process of the trigger component moving to the second predetermined position, the trigger component drives the transmission component to move, the transmission component drives the third part to move, and the third part drives the second and first parts to move. When the trigger component reaches the second predetermined position and triggers the second valve switch, the first part moves into the receiving space.

[0006] The apparatus provided by the embodiments of this application can determine the initial position of the spent fuel assembly by triggering the first valve switch through the trigger element, and mark the zero position of the spent fuel assembly to provide position information for subsequent shearing of the spent fuel assembly, thereby facilitating the shearing of the spent fuel assembly. Attached Figure Description

[0007] Other objects and advantages of this application will become apparent from the following description of embodiments of this application with reference to the accompanying drawings, and will help to provide a comprehensive understanding of this application.

[0008] Figure 1 This is a schematic diagram of the structure of the device provided in the embodiments of this application.

[0009] Figure 2 This is a schematic diagram of the device structure when the trigger element of the device provided in the embodiment of this application triggers the first valve switch.

[0010] Figure 3 This is a schematic diagram of the structure of the first valve switch provided in an embodiment of this application.

[0011] Figure 4 This is a schematic diagram of the structure of the second valve switch provided in an embodiment of this application.

[0012] Figure 5 This is a schematic diagram of the device structure when the trigger element of the device provided in the embodiment of this application triggers the second valve switch.

[0013] Explanation of reference numerals in the attached figures:

[0014] 10. Apparatus;

[0015] 11. Main body of the device; 111. Accommodation space; 12. Swinging component; 121. First part; 122. Second part; 123. Third part; 13. Transmission component; 14. First valve switch; 141. First mating structure; 15. Second valve switch; 151. Second mating structure; 16. Trigger; 17. Drive component; 18. Lifting component; 19. Auxiliary moving component.

[0016] It should be noted that the accompanying drawings are not necessarily drawn to scale, but are shown only in a schematic manner without affecting the reader's understanding. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only one embodiment of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the described embodiments of this application without creative effort are within the scope of protection of this application.

[0018] It should be noted that, unless otherwise defined, the technical or scientific terms used in this application should have the ordinary meaning understood by a person with ordinary skill in the art to which this application pertains. Where the terms "first," "second," etc., are used throughout the text, they are used only to distinguish similar objects and should not be construed as indicating or implying their relative importance, order of precedence, or implicitly specifying the number of technical features indicated. It should be understood that the data described by "first," "second," etc., can be interchanged where appropriate. Where "and / or" appears throughout the text, it means including three parallel solutions. Taking "A and / or B" as an example, it includes solution A, or solution B, or a solution that satisfies both A and B. Furthermore, for ease of description, spatial relative terms such as "above," "below," "top," "bottom," etc., may be used here, only to describe the spatial positional relationship between one device or feature as shown in the figure and other devices or features. It should be understood that this also includes different orientations in use or operation besides those shown in the figure.

[0019] Embodiments of this application provide an apparatus (hereinafter referred to as the apparatus) for determining the zero position of a spent fuel assembly undergoing shearing within a hot chamber, such as... Figure 1 The diagram shows a partial structural schematic of the apparatus 10 provided in an embodiment of this application. Figure 1 (Not shown in the image), the device may include: a device body 11, a swing member 12, a transmission member 13, a first valve switch 14, a second valve switch 15, a trigger member 16, and a drive member 17.

[0020] The main body 11 of the device forms an accommodating space 111; the swinging member 12 includes a first part 121, a second part 122, and a third part 123, which are integrally formed. The second part 122 is located between the first part 121 and the second part 123, and the third part 123 is accommodated within the accommodating space 111; a part of the transmission member 13 is located within the accommodating space 111 of the main body 11, and another part is located outside the main body 11. The third part 123 is fixedly connected to the transmission member 13, and the third part 123 can drive the transmission member 13 to rotate. It can drive the third part 123 to rotate; the first valve switch 14 is set at a first predetermined position on the outside of the device body 11, and the second valve switch 15 is set at a second predetermined position on the outside of the device body 11; one end of the trigger member 16 is fixed to the transmission member 13, and the other end can trigger the first valve switch 14 and the second valve switch 15, and the transmission member 13 can drive the trigger member 16 to rotate, and the trigger member 16 can drive the transmission member 13 to rotate; the drive member 17 is fixed to the outside of the device body 11 and is configured to drive the trigger member 16 to rotate between the first predetermined position and the second predetermined position.

[0021] The device is configured such that when the spent fuel assembly contacts the first part 121, the first part 121 drives the second part 122 and the third part 123 to rotate, the third part 123 drives the transmission member 13 to rotate, and the transmission member 13 drives the trigger member 16 to move away from the first predetermined position and trigger the first valve switch 14 located at the first predetermined position. At this time, the device 10... Figure 2 As shown, it illustrates the structure of the device 10 provided in the embodiment of this application when the trigger 16 triggers the first valve switch 14. At this time, the position of the spent fuel assembly is zero.

[0022] When the trigger 16 leaves the first predetermined position, the drive 17 drives the trigger 16 to move to the second predetermined position. During the movement of the trigger 16 to the second predetermined position, the trigger 16 drives the transmission 13 to move, the transmission 13 drives the third part 123 to move, and the third part 123 drives the second part 122 and the first part 121 to move. When the trigger 16 reaches the second predetermined position and triggers the second valve switch 15, the first part 121 moves into the receiving space 111. At this time, the device 10... Figure 5 The diagram shows a schematic representation of the structure of the device 10 provided in the embodiments of this application when the trigger 16 triggers the second valve switch 15. The device 10 provided in the embodiments of this application can determine the initial position of the spent fuel assembly by triggering the first valve switch 14 through the trigger 16, marking the zero position of the spent fuel assembly, providing position information for subsequent shearing of the spent fuel assembly, thus facilitating the shearing of the spent fuel assembly.

[0023] See Figure 2 In some embodiments, the first part 121, the second part 122, and the third part 123 may be formed in a "Z" shape.

[0024] See Figure 1 In some embodiments, the driving member 17 can be a cylinder, and a portion of the piston rod of the cylinder can be fixedly connected to the trigger member 16, so that the driving member 17 can drive the trigger member 16 to move. When the transmission member 13 drives the trigger member 16 away from the first predetermined position and triggers the first valve switch 14 set at the first predetermined position, the trigger member 16 will drive the piston rod of the cylinder to move, and the cylinder is in a follow-up state at this time; when the trigger member 16 leaves the first predetermined position, the piston rod of the cylinder drives the trigger member 16 to move.

[0025] In some embodiments, the transmission member 13 may be a shaft-shaped member that can penetrate the wall of the device body 11, such that a portion of the shaft-shaped member can be located inside the receiving space 111 and another portion can be located outside the receiving space 111.

[0026] See Figure 1In some embodiments, the device 10 may further include a lifting member 18, which may be disposed on the outside of the device body 11 and may be configured to allow a robotic arm to lift the device 10. The device 10 can be lifted by the lifting member 18, facilitating the disassembly or installation of the device 10.

[0027] In some embodiments, the lifting component 18 may be a lifting lug.

[0028] In some embodiments, there may be multiple lifting components 18.

[0029] like Figure 3 and Figure 4 As shown, the diagrams illustrate the structures of the first valve switch 14 and the second valve switch 15. The first valve switch 14 and the second valve switch 15 can form a mating structure, which can be configured to work with a robotic arm to enable remote disassembly and installation.

[0030] In some embodiments, the mating structure may be a plane that mates with the robotic arm.

[0031] In some embodiments, the first valve switch 14 and the second valve switch 15 may include seals to ensure the airtightness of the device 10.

[0032] See Figure 3 and Figure 4 The air source can enter from the top of the first valve switch 14 and the second valve switch 15 and flow out to the bottom, which can ensure that the airflow can flow from the outside of the hot chamber to the inside of the hot chamber.

[0033] In some embodiments, the device 10 may further include a mounting structure that can be fixedly connected to the device body 11 and can be used to mount the first valve switch 14 and the second valve switch 15.

[0034] In some embodiments, the mounting structure for mounting the first valve switch 14 and the mounting structure for mounting the second valve switch 15 may be different.

[0035] In some embodiments, the device body 11 may be formed as a box structure, and the trigger 16, the drive 17, the first valve switch 14, and the second valve switch 15 may be disposed on the same side of the box structure.

[0036] See Figure 1 In some embodiments, the side of the housing structure of the device body 11 may have a long side and a short side, which are perpendicular to each other. The first valve switch 14 may be set at a predetermined position on the long side, i.e., at the first predetermined position; the second valve switch 15 may be set at a predetermined position on the delay line of the short side, i.e., at the second predetermined position.

[0037] See Figure 1 In some embodiments, the device 10 may further include an auxiliary moving member 19, which may be fixedly disposed on the device body 11 so that the auxiliary moving member 19 can move the device body 11. The auxiliary moving member 19 may be fixed at a position perpendicular to the side of the housing. The auxiliary moving member 19 can assist in moving the device 10, facilitating the installation and disassembly of the device 10.

[0038] In some embodiments, the auxiliary moving part 19 may include a rotating handle.

[0039] In some embodiments, the auxiliary moving member 19 may also include a pressing shaft.

[0040] Regarding the embodiments of this application, it should also be noted that, without conflict, the embodiments of this application and the features in the embodiments can be combined with each other to obtain new embodiments.

[0041] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. The scope of protection of this application shall be determined by the scope of the claims.

Claims

1. A device for determining the zero position of a spent fuel assembly undergoing shearing within a hot chamber, characterized in that, It includes: The main body of the device has an internal accommodating space. A swinging component, comprising a first part, a second part, and a third part, wherein the first part, the second part, and the third part are integrally formed, the second part is located between the first part and the third part, and the third part is accommodated within the accommodating space; A transmission component, one part of which is located within the accommodating space of the main body of the device, and another part located on the outside of the main body of the device; a third part is fixedly connected to the transmission component, the third part can drive the transmission component to rotate, and the transmission component can also drive the third part to rotate; A first valve switch and a second valve switch, wherein the first valve switch is disposed at a first predetermined position on the outside of the device body, and the second valve switch is disposed at a second predetermined position on the outside of the device body. A trigger element, one end of which is fixed to the transmission element, and the other end of which can trigger the first valve switch and the second valve switch; the transmission element can drive the trigger element to rotate, and the trigger element can drive the transmission element to rotate. A driving component, which is fixed to the outside of the main body of the device and configured to drive the trigger to rotate between a first predetermined position and a second predetermined position; The device is configured as follows: When the spent fuel assembly contacts the first part, the first part drives the second and third parts to rotate, the third part drives the transmission component to rotate, the transmission component drives the trigger component to leave the first predetermined position, and triggers the first valve switch set at the first predetermined position. At this time, the position of the spent fuel assembly is zero. When the trigger moves away from the first predetermined position, the drive unit drives the trigger to move to the second predetermined position. During the process of the trigger moving to the second predetermined position, the trigger drives the transmission unit to move, the transmission unit drives the third part to move, and the third part drives the second part and the first part to move. When the trigger reaches the second predetermined position and triggers the second valve switch, the first part moves into the receiving space.

2. The apparatus according to claim 1, characterized in that, The first, second, and third parts form a "Z" shape.

3. The apparatus according to claim 1 or 2, characterized in that, The driving component is a cylinder, and a portion of the piston rod of the cylinder is fixedly connected to the trigger component.

4. The apparatus according to claim 1 or 2, characterized in that, The transmission component is a shaft-shaped component that penetrates the wall of the main body of the device, such that a portion of the shaft-shaped component is located within the receiving space and another portion is located outside the receiving space.

5. The apparatus according to claim 1 or 2, characterized in that, It also includes a lifting device, which is located on the outside of the main body of the device and is configured to allow the device to be lifted by a robotic arm.

6. The apparatus according to claim 5, characterized in that, The lifting component is a lifting lug.

7. The apparatus according to claim 1, characterized in that, The first valve switch and the second valve switch form a mating structure, which is configured to cooperate with a robotic arm to enable remote disassembly and installation.

8. The apparatus according to claim 1, characterized in that, The main body of the device is formed as a box structure, and the trigger, the drive, the first valve switch, and the second valve switch are disposed on the same side of the box structure.

9. The apparatus according to claim 8, characterized in that, The side portion has a long side and a short side, the long side and the short side being perpendicular to each other, and the first valve switch is disposed at a predetermined position on the long side. The second valve switch is located at a predetermined position on the extension line of the short side.

10. The apparatus according to claim 8, characterized in that, It also includes an auxiliary moving component, which is fixedly disposed on the device body to enable the auxiliary moving component to move the device body. The auxiliary moving part is fixed at a position perpendicular to the side of the housing.

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