A fuel assembly gripper rack

Abstract

This application provides a fuel assembly gripper rack, which includes a mounting bracket, a clamping component, and an adjustable rack component. The mounting bracket is fixed to a steel beam on the wall of a spent fuel storage tank. One end of the clamping component is connected to the mounting bracket via a pin; the other end of the clamping component is clamped to the other side of the tank wall via adjustable feet. The adjustable rack component is fixed to the bottom mounting plate of the mounting bracket and configured to have an adjustable opening degree. This application solves the problem that existing fuel assembly gripper racks, due to their non-adjustable opening degree, can only store one type of gripper by providing a fuel assembly gripper rack with an adjustable opening degree.

Description

Technical Field

[0001] This application belongs to the technical field of fuel assembly grippers in nuclear power plant fuel handling, and specifically relates to a fuel assembly gripper bracket. Background Technology

[0002] Currently, nuclear power plants widely use three types of refueling grippers: old control rod / choke plug / neutron source assembly grippers, for the insertion and transfer of related fuel assemblies.

[0003] When not in use, the grippers must be suspended from the detachable gripper rack or fuel handling tool combination bracket on the wall of the spent fuel storage pool. Currently, the detachable racks or combination brackets widely used in nuclear power plants can only store one type of gripper. Summary of the Invention

[0004] In view of this, this application aims to provide a fuel assembly gripper rack, which solves the problem that existing fuel assembly gripper racks can only store one type of corresponding gripper because the opening degree is not adjustable.

[0005] This application provides a fuel assembly gripper bracket, which includes a mounting bracket component, a clamping component, and an adjustable bracket component. The mounting bracket component is used to fix itself to a steel beam on the wall of a spent fuel storage tank. One end of the clamping component is connected to the mounting bracket component via a pin; the other end of the clamping component is clamped to the other side of the tank wall via adjustable feet; the adjustable bracket component is fixed to the bottom mounting plate of the mounting bracket component and configured to adjust its opening and closing degree.

[0006] In one specific embodiment of this application, the thickness of the clamping wall of the clamping component is not less than 1m.

[0007] In one specific embodiment of this application, the mounting bracket component includes a mounting bracket base plate, mounting bracket side plates, mounting bracket support plates, and a fixing bracket. The mounting bracket base plate is used to fix it to the poolside steel beam. The mounting bracket side plates and mounting bracket support plates are both fixed on the mounting bracket base plate and serve to provide support and reinforcement; the fixing bracket is fixed on the mounting bracket base plate and provides an installation interface for the clamping components.

[0008] In one specific embodiment of this application, the adjustable bracket component is fixed to the mounting bracket base plate of the mounting bracket component by bolts.

[0009] In one specific embodiment of this application, the fixing bracket is fixed to the base plate of the mounting bracket by bolts.

[0010] In one specific embodiment of this application, the mounting bracket side plate and the mounting bracket support plate are fixed to the mounting bracket base plate by welding.

[0011] In one specific embodiment of this application, the clamping component includes a top rod, a top rod nut, a rotating arm side plate, a rotating arm support plate, a foot, a pressure cap, a top foot screw, a channel steel, a lap plate, an upper mounting plate, a top rod limiting plate, a middle welding plate, a lower mounting plate, a connecting plate, a nut, and a pin. The lengths of the top rod and the channel steel are adapted to the wall thickness. The lower mounting plate is connected to a fixed bracket in the mounting bracket component via a pin, and the foot clamps the wall by adjusting the top foot screw.

[0012] In one specific embodiment of this application, the adjustable bracket component includes a bracket base plate, eye bolts, bracket side plates, mounting base plate, reinforcing ribs, bearing seats, screws, threaded nuts, reverse-threaded nuts, an adjusting handwheel, bearings, slide rails, and sliders. The bracket base plate of the adjustable bracket component is fixed to the mounting bracket component by bolts. Two slide rails are fixed to the bracket base plate by screws; four sliders are mounted on the slide rails, and the mounting base plate is fixed to the sliders by bolts, moving left and right along the slide rails together with the sliders; the adjusting handwheel is fixed to the end of the screw, and the threaded nuts and reverse-threaded nuts are fixed to the bracket side plates, while the threaded nuts and reverse-threaded nuts cooperate with the screw.

[0013] The beneficial effects of the technical solution of this application are as follows: by adjusting the clamping components of the hanger, it can adapt to different wall thicknesses of the waste pool; by adjusting the opening and closing degree of the adjustable hanger components, it achieves the technical effect that the hanger can carry different material handling grippers. Attached Figure Description

[0014] Figure 1A The image shown is a front view schematic diagram of a fuel assembly gripper bracket provided in an embodiment of this application.

[0015] Figure 1B As shown Figure 1A The diagram shows a top view of a fuel assembly grabber mount.

[0016] Figure 2A The image shown is a top view of a mounting bracket component in a fuel assembly grabber bracket according to an embodiment of this application.

[0017] Figure 2B The image shown is a front view schematic diagram of a mounting bracket component in a fuel assembly grabber bracket according to an embodiment of this application.

[0018] Figure 3A The image shown is a front view schematic diagram of a clamping component in a fuel assembly gripper bracket according to an embodiment of this application.

[0019] Figure 3B As shown Figure 3A This is a top view schematic diagram of a clamping component in a fuel assembly gripper bracket.

[0020] Figure 4AThe image shown is a front view schematic diagram of an adjustable bracket component in a fuel assembly gripper bracket according to an embodiment of this application.

[0021] Figure 4B As shown Figure 4A The diagram shows a cross-sectional view of the adjustable bracket component in the fuel assembly grabber bracket along line AA.

[0022] Figure 4C As shown Figure 4A The diagram shows a top view of the adjustable bracket component in the fuel assembly grabber bracket.

[0023] Figure 4D The image shown is of this application. Figure 4A The diagram shows a side view of the adjustable bracket component in the fuel assembly grabber bracket. Detailed Implementation

[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0025] At least one embodiment of this application provides a fuel assembly gripper bracket, see reference. Figure 1A and Figure 1B The fuel assembly gripper bracket includes a mounting bracket component 10, a clamping component 20, and an adjustable bracket component 30. The mounting bracket component 10 is used to fix itself to a steel beam on the wall of the spent fuel storage tank. One end of the clamping component 20 is connected to the mounting bracket component 10 by a pin; the other end of the clamping component 20 is clamped to the other side of the tank wall by adjustable feet; the adjustable bracket component 30 is fixed to the bottom mounting plate of the mounting bracket component 10 and is configured to adjust the opening and closing degree.

[0026] It should be noted that the mounting bracket component 10 can be used to mount components such as lifting rings and bases. For example... Figure 1A and Figure 1B As shown, when the unloading grab is not in use, it is suspended on the grab hanger on the wall of the spent fuel storage pool.

[0027] According to the technical solution provided in the embodiments of this application, by adjusting the clamping component 20 of the hanging bracket, it is possible to adapt to different wall thicknesses of the waste pool; by adjusting the opening and closing degree of the adjustable hanging bracket component 30, the technical effect of the hanging bracket being able to hang different material handling grippers is achieved.

[0028] In at least one embodiment of this application, the thickness of the clamping wall to which the clamping member 20 clamps is not less than 1m. This achieves the technical effect of clamping walls with a thickness of 1m or more.

[0029] In at least one embodiment of this application, such as Figure 2A and Figure 2B As shown, the mounting bracket component 10 includes a mounting bracket base plate 11, mounting bracket side plates 12, mounting bracket support plates 13, and a fixing bracket 14. The mounting bracket base plate 11 is used to fix it to the poolside steel beam. The mounting bracket side plates 12 and mounting bracket support plates 13 are both fixed to the mounting bracket base plate 11 and serve to provide support and reinforcement; the fixing bracket 14 is fixed to the mounting bracket base plate 11 and provides an installation interface for the clamping component 20.

[0030] It should be noted that the mounting base plate 11 can be fixed to the steel beam on the wall of the spent fuel storage pool by welding.

[0031] In the above embodiments, the mounting base plate 11 constitutes the base of the entire mounting bracket component 10, and the strength of the entire bracket can be strengthened by using the mounting side plate 12 and the mounting support plate 13.

[0032] In at least one embodiment of this application, the adjustable bracket component 30 is fixed to the mounting bracket base plate 11 of the mounting bracket component 10 by bolts. For example, the adjustable bracket component 30 is connected and fixed to the mounting bracket base plate 11 of the mounting bracket component 10 by six M8 bolts.

[0033] In at least one embodiment of this application, the fixing bracket 14 is fixed to the mounting bracket base plate 11 by bolts. For example, the fixing bracket 14 is fixed to the mounting bracket base plate 11 by six M10 bolts.

[0034] In at least one embodiment of this application, the mounting bracket side plate 12 and the mounting bracket support plate 13 are fixed to the mounting bracket base plate 11 by welding.

[0035] The clamping component 20 is used to adapt to walls of different thicknesses and provide support for the fuel assembly gripper bracket. Based on this, the present application embodiment does not specifically limit the structural composition of the clamping component 20. Below, the structural composition of the clamping component 20 will be illustrated with specific embodiments.

[0036] In at least one embodiment of this application, such as Figure 3A and Figure 3BAs shown, the clamping component 20 includes a top rod 21, a top rod nut 22, a rotating arm side plate 23, a rotating arm support plate 24, a foot 25, a pressure cap 26, a top foot screw 27, a channel steel 28, an overlapping plate 29, an upper mounting plate 210, a top rod limiting plate 211, a middle welding plate 212, a lower mounting plate 213, a connecting plate 214, a nut 215, and a pin 216. The lengths of the top rod 21 and the channel steel 28 are adapted to the wall thickness. The lower mounting plate 213 is connected to the fixed bracket 14 in the mounting bracket component 10 via the pin 216, and the foot 25 is clamped to the wall by adjusting the top foot screw 27. Thus, by adjusting the top foot screw 27 to clamp the foot 25 to the wall, the entire fuel assembly grab hanger is fixed using the clamping component 20.

[0037] It should be noted that the lengths of the top rod 21 and the channel steel 28 are customized according to different wall thicknesses.

[0038] In at least one embodiment of this application, such as Figures 4A to 4D As shown, the adjustable bracket component 30 includes a bracket base plate 31, eye bolts 32, bracket side plates 33, mounting base plate 34, reinforcing ribs 35, bearing seats 36, screws 37, straight thread nuts 38, reverse thread nuts 39, adjusting handwheel 310, bearings 311, slide rails 312, and sliders 313. The bracket base plate 31 of the adjustable bracket component 30 is fixed to the mounting bracket component 10 by bolts. Two slide rails 312 are fixed to the bracket base plate 31 by screws; four sliders 313 are mounted on the slide rails 312, and the mounting base plate 34 is fixed to the sliders 313 by bolts, and moves left and right along the slide rails 312 together with the sliders 313; the adjusting handwheel 310 is fixed to the end of the screw 37, and the straight thread nuts 38 and reverse thread nuts 39 are fixed to the bracket side plate 33, and the straight thread nuts 38 and reverse thread nuts 39 cooperate with the screw 37. Thus, by turning the adjusting handwheel 310, the screw 37, the right-thread nut 38, and the reverse-thread nut 39 can be driven, causing the bracket side plate 33 to open and close simultaneously, with the opening and closing range as follows: Figures 4A to 4D As shown.

[0039] It should be noted that the combination of the technical features in the embodiments of this application is not limited to the combination methods described in the embodiments of this application or the combination methods described in specific embodiments. All technical features described in this application can be freely combined or combined in any way, unless they contradict each other.

[0040] As indicated in this application and claims, unless the context clearly indicates otherwise, the words "a," "an," and / or "the" do not specifically refer to the singular and may also include the plural. Generally speaking, the term "comprising" only indicates that it includes the explicitly identified steps and elements, which do not constitute an exclusive list, and the method or apparatus may also include other steps or elements.

[0041] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0042] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications or equivalent substitutions made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A fuel assembly gripper hanger characterized by, The fuel assembly grabber hanger includes a mounting bracket component, a clamping component, and an adjustable hanger component, The mounting bracket component is used to be fixed on the steel beam of the pool wall of the spent fuel storage pool; one end of the clamping component is connected to the mounting bracket component through a pin shaft, and the other end of the clamping component is clamped to the other side of the pool wall through an adjustable foot seat; the adjustable hanger component is fixed on the bottom mounting plate of the mounting bracket component and is configured to be adjustable in opening and closing degree, The adjustable hanger component includes a hanger bottom plate, a lifting ring screw, a hanger side plate, a mounting bottom plate, a reinforcing rib plate, a bearing seat, a screw rod, a toothed nut, an anti-toothed nut, an adjusting hand wheel, a bearing, a sliding rail, and a sliding block; the hanger bottom plate of the adjustable hanger component is fixed on the mounting bracket component through a bolt; two sliding rails are fixed on the upper surface of the hanger bottom plate through a screw; four sliding blocks are installed on the upper surface of the sliding rails; the mounting bottom plate is fixed on the upper surface of the sliding blocks through a bolt and moves left and right along the sliding rails together with the sliding blocks; the adjusting hand wheel is fixed on the end of the screw rod; the toothed nut and the anti-toothed nut are fixed on the upper surface of the hanger side plate, and the toothed nut and the anti-toothed nut cooperate with the screw rod.

2. A fuel assembly gripper hanger according to claim 1, characterized in that The thickness of the wall clamped by the clamping component is not less than 1m.

3. The fuel assembly grabber hanger according to claim 1, wherein The mounting bracket component includes a mounting rack bottom plate, a mounting rack side plate, a mounting rack support plate, and a fixing bracket; the mounting rack bottom plate is used to be fixed on the steel beam of the pool wall; the mounting rack side plate and the mounting rack support plate are both fixed on the upper surface of the mounting rack bottom plate and are used to support and strengthen; and the fixing bracket is fixed on the mounting rack bottom plate and is used to provide an installation interface for the clamping component.

4. A fuel assembly gripper hanger according to claim 3, characterized in that The adjustable hanger component is fixed on the mounting rack bottom plate of the mounting bracket component through a bolt.

5. A fuel assembly gripper hanger according to claim 3, wherein, The fixing bracket is fixed on the mounting rack bottom plate through a bolt.

6. A fuel assembly gripper hanger according to claim 3, wherein, The mounting rack side plate and the mounting rack support plate are fixed on the upper surface of the mounting rack bottom plate through welding.

7. The fuel assembly grabber hanger according to claim 1, wherein The clamping component includes a top rod, a top rod nut, a rotating arm side plate, a rotating arm support plate, a foot seat, a gland, a top foot screw rod, a channel steel, a lap plate, an upper mounting plate, a top rod limiting plate, a middle welding plate, a lower mounting plate, a connecting plate, a nut, and a pin shaft; the length of the top rod and the channel steel is adapted to the thickness of the wall; the lower mounting plate is connected to the fixing bracket in the mounting bracket component through a pin shaft and is clamped to the wall by adjusting the top foot screw rod.

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