Fuel assembly gripping apparatus hanger

Abstract

The invention provides a fuel assembly gripping apparatus hanger. The fuel assembly gripping apparatus hanger comprises a mounting bracket component, a clamping component and an adjustable hanger component, and the mounting bracket component is fixed on a steel beam on the wall of the spent fuel storage pool. One end of the clamping component is connected to the mounting bracket component through a pin shaft; the other end of the clamping part is clamped on the other surface of the pool wall through an adjustable footstand; and 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. According to the fuel assembly gripper hanger with the adjustable opening degree, the problem that an existing fuel assembly gripper hanger can only store one corresponding related gripper due to the fact that the opening degree cannot be adjusted is solved.

Description

Technical Field

[0001] The present application belongs to the technical field of fuel assembly grippers in nuclear power plant fuel operations, and in particular relates to a fuel assembly gripper rack. Background Art

[0002] Currently, three types of fuel unloading grippers are widely used in nuclear power plants: old control rod / choke plug / neutron source assembly grippers, which are used for the extraction, insertion and transfer operations of related fuel assemblies.

[0003] When the gripper is not in use, it needs to be hung on a detachable gripper hanger or a fuel handling tool combination bracket on the wall of the spent fuel storage pool. The detachable hangers or combination brackets widely used in nuclear power plants can only store one corresponding gripper. Summary of the invention

[0004] In view of this, the present application is dedicated to providing a fuel assembly gripper rack, which solves the problem that the existing fuel assembly gripper rack can only store one corresponding related gripper due to the non-adjustable opening and closing degree by setting a fuel assembly gripper rack with adjustable opening and closing degree.

[0005] The present application provides a fuel assembly gripper hanger, which includes a mounting bracket component, a clamping component and an adjustable hanger component. The mounting bracket component is used to be fixed on a steel beam on the wall of a spent fuel storage pool. One end of the clamping component is connected to the mounting bracket component through a pin; the other end of the clamping component is clamped on the other side of the pool wall through an adjustable foot; the adjustable hanger component is fixed to the bottom mounting plate of the mounting bracket component and is configured to have an adjustable opening and closing degree.

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

[0007] In a specific embodiment of the present application, the mounting bracket component includes a mounting bracket bottom plate, a mounting bracket side plate, a mounting bracket support plate and a fixing bracket. The mounting bracket bottom plate is used to be fixed on the pool edge steel beam. The mounting bracket side plate and the mounting bracket support plate are both fixed on the mounting bracket bottom plate to play a supporting and reinforcing role; the fixing bracket is fixed on the mounting bracket bottom plate to provide a mounting interface for the clamping component.

[0008] In a specific embodiment of the present application, the adjustable hanger component is fixed to the mounting frame bottom plate of the mounting bracket component by bolts.

[0009] In a specific embodiment of the present application, the fixing bracket is fixed to the bottom plate of the mounting frame by bolts.

[0010] In a specific embodiment of the present application, the mounting frame side plates and the mounting frame support plates are fixed to the mounting frame bottom plate by welding.

[0011] In a specific embodiment of the present application, the clamping component includes a mandrel, a mandrel nut, a rotating arm side plate, a rotating arm support plate, a foot seat, a pressure cap, a mandrel screw, a channel steel, a lap plate, an upper mounting plate, a mandrel limit plate, a middle welding plate, a lower mounting plate, a connecting plate, a nut and a pin. The length of the mandrel and the channel steel is adapted to the thickness of the wall. The lower mounting plate is connected to a fixed bracket in the mounting bracket component through a pin, and the foot seat is clamped to the wall by adjusting the mandrel screw.

[0012] In a specific embodiment of the present application, the adjustable bracket component includes a bracket base plate, eye screws, bracket side plates, a mounting base plate, a reinforcing rib plate, a bearing seat, a screw, a positive thread nut, a negative thread nut, an adjusting hand wheel, a bearing, a slide rail and a slider. 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 installed on the slide rails, and the mounting base plate is fixed to the sliders by bolts, and moves left and right along the slide rails together with the sliders; the adjusting hand wheel is fixed to the end of the screw, and the positive thread nut and the negative thread nut are fixed to the bracket side plate, and the positive thread nut and the negative thread nut cooperate with the screw.

[0013] The beneficial effects of the technical solution of the present application are: by adjusting the technical means of the clamping components of the bracket, it can adapt to different wall thicknesses of the spent pool; by adjusting the opening and closing degree of the adjustable bracket components, the technical effect of the bracket being able to mount different material dumping grippers is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1A Shown is a front schematic view of a fuel assembly gripper rack provided in one embodiment of the present application.

[0015] Figure 1B Shown Figure 1A A schematic top view of a fuel assembly gripper rack is shown.

[0016] Figure 2A Shown is a top view schematic diagram of a mounting bracket component in a fuel assembly gripper rack provided in one embodiment of the present application.

[0017] Figure 2B Shown is a front schematic view of a mounting bracket component in a fuel assembly gripper rack provided in one embodiment of the present application.

[0018] Figure 3A Shown is a front schematic view of a clamping component in a fuel assembly gripper rack provided in one embodiment of the present application.

[0019] Figure 3B Shown Figure 3A A schematic top view of a clamping component in a fuel assembly gripper rack is shown.

[0020] Figure 4AShown is a front schematic view of an adjustable rack component in a fuel assembly gripper rack provided in one embodiment of the present application.

[0021] Figure 4B Shown Figure 4A A schematic cross-sectional view of an adjustable rack component along AA in a fuel assembly gripper rack is shown.

[0022] Figure 4C Shown Figure 4A A schematic top view of an adjustable rack component in a fuel assembly gripper rack is shown.

[0023] Figure 4D This application is shown Figure 4A A schematic side view of an adjustable rack component in a fuel assembly gripper rack is shown. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0025] At least one embodiment of the present application provides a fuel assembly gripper rack, referring to Figure 1A and Figure 1B The fuel assembly gripper hanger comprises a mounting bracket component 10, a clamping component 20 and an adjustable hanger component 30. The mounting bracket component 10 is used to be fixed on a steel beam on the wall of a spent fuel storage pool. One end of the clamping component 20 is connected to the mounting bracket component 10 through a pin; the other end of the clamping component 20 is clamped on the other side of the pool wall through an adjustable foot; the adjustable hanger component 30 is fixed to the bottom mounting plate of the mounting bracket component 10 and is configured to have an adjustable opening and closing degree.

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

[0027] According to the technical solution provided in the embodiment of the present application, by adjusting the technical means of the bracket clamping component 20, it is possible to adapt to different wall thicknesses of the spent pool; by adjusting the opening and closing degree of the adjustable bracket component 30, the technical effect that the bracket can mount different material unloading grabbers is achieved.

[0028] In at least one embodiment of the present application, the thickness of the wall clamped by the clamping member 20 is not less than 1 m. In this way, the technical effect of being able to clamp a wall with a thickness of more than 1 m can be achieved.

[0029] In at least one embodiment of the present application, Figure 2A and Figure 2B As shown, the mounting bracket component 10 includes a mounting bracket bottom plate 11, a mounting bracket side plate 12, a mounting bracket support plate 13 and a fixing bracket 14. The mounting bracket bottom plate 11 is used to be fixed on the pool side steel beam. The mounting bracket side plate 12 and the mounting bracket support plate 13 are both fixed on the mounting bracket bottom plate 11 for supporting and strengthening; the fixing bracket 14 is fixed on the mounting bracket bottom plate 11 for providing a mounting interface for the clamping component 20.

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

[0031] In the above embodiment, the mounting frame bottom plate 11 constitutes the base of the entire mounting frame component 10, and the mounting frame side plates 12 and the mounting frame support plates 13 can be used to reinforce the strength of the entire frame.

[0032] In at least one embodiment of the present application, the adjustable hanger component 30 is fixed to the mounting frame bottom plate 11 of the mounting bracket component 10 by bolts. For example, the adjustable hanger component 30 is connected and fixed to the mounting frame bottom plate 11 of the mounting bracket component 10 by 6 M8 bolts.

[0033] In at least one embodiment of the present application, the fixing bracket 14 is fixed to the mounting frame bottom plate 11 by bolts. For example, the fixing bracket 14 is fixed to the mounting frame bottom plate 11 by 6 M10 bolts.

[0034] In at least one embodiment of the present application, the mounting frame side plate 12 and the mounting frame support plate 13 are fixed to the mounting frame bottom 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 rack. On this basis, the present embodiment does not specifically limit the structural composition of the clamping component 20. In the following, the structural composition of the clamping component 20 is described by way of example in conjunction with a specific embodiment.

[0036] In at least one embodiment of the present application, Figure 3A and Figure 3BAs shown, the clamping component 20 includes a mandrel 21, a mandrel nut 22, a rotating arm side plate 23, a rotating arm support plate 24, a foot 25, a pressure cap 26, a mandrel screw 27, a channel steel 28, a lap plate 29, an upper mounting plate 210, a mandrel stop 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 mandrel 21 and the channel steel 28 are adapted to the thickness of the wall. The lower mounting plate 213 is connected to the fixed bracket 14 in the mounting bracket component 10 through the pin 216, and the foot 25 is clamped to the wall by adjusting the mandrel screw 27. In this way, by adjusting the mandrel screw 27 to clamp the foot 25 to the wall, the entire fuel assembly gripper hanger is fixed by 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 the present application, Figures 4A to 4D As shown, the adjustable hanger component 30 includes a hanger base plate 31, eyebolts 32, hanger side plates 33, mounting base plates 34, reinforcing rib plates 35, bearing seats 36, screw rods 37, orthogonal nuts 38, anti-threaded nuts 39, adjusting handwheels 310, bearings 311, slide rails 312, and sliders 313. The hanger base plate 31 of the adjustable hanger component 30 is fixed to the mounting bracket component 10 by bolts. Two slide rails 312 are fixed on the hanger base plate 31 by screws; four sliders 313 are installed on the slide rails 312, and the mounting base plate 34 is fixed on 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 rod 37, and the orthogonal nuts 38 and anti-threaded nuts 39 are fixed on the hanger side plates 33, and the orthogonal nuts 38 and anti-threaded nuts 39 cooperate with the screw rod 37. Thus, by turning the adjusting hand wheel 310, the screw rod 37, the positive thread nut 38 and the negative thread nut 39 can be driven to open and close the side plates 33 of the rack at the same time. The opening and closing range is as follows: Figures 4A to 4D shown.

[0039] It should be noted that the combination of the various technical features in the embodiments of the present application is not limited to the combination described in the embodiments of the present application or the combination described in the specific embodiments, and all technical features described in the present application can be freely combined or combined in any way unless there is a contradiction between them.

[0040] As shown in this application and claims, unless the context clearly indicates an exception, the words "a", "an" and / or "the" do not refer to the singular and may also include the plural. Generally speaking, the term "comprising" only indicates that the steps and elements that have been clearly identified are included, and these steps and elements do not constitute an exclusive list. The method or device may also include other steps or elements.

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

[0042] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A fuel assembly gripper rack, characterized in that: It includes mounting bracket parts, clamping parts and adjustable bracket parts. The mounting bracket component is used to be fixed on the steel beam on the wall of the spent fuel storage pool; one end of the clamping component is connected to the mounting bracket component through a pin, and the other end of the clamping component is clamped on the other side of the pool wall through an adjustable foot; the adjustable bracket component is fixed on the bottom mounting plate of the mounting bracket component and is configured to have an adjustable opening and closing degree.

2. A fuel assembly gripper rack according to claim 1, characterized in that: The thickness of the clamping wall of the clamping part shall not be less than 1m.

3. A fuel assembly gripper rack according to claim 1, characterized in that: The mounting bracket components include a mounting frame bottom plate, a mounting frame side plate, a mounting frame support plate and a fixed bracket. The mounting frame bottom plate is used to be fixed on the pool edge steel beam; the mounting frame side plate and the mounting frame support plate are both fixed on the mounting frame bottom plate to provide support and reinforcement; the fixed bracket is fixed on the mounting frame bottom plate to provide an installation interface for the clamping components.

4. A fuel assembly gripper rack according to claim 3, characterized in that: The adjustable hanger component is fixed to the mounting bracket bottom plate of the mounting bracket component by bolts.

5. A fuel assembly gripper rack according to claim 3, characterized in that: The fixing bracket is fixed to the bottom plate of the mounting bracket by bolts.

6. A fuel assembly gripper rack according to claim 3, characterized in that: The mounting frame side plates and mounting frame support plates are fixed on the mounting frame bottom plate by welding.

7. A fuel assembly gripper rack according to claim 1, characterized in that: The clamping parts include a push rod, a push rod nut, a rotating arm side plate, a rotating arm support plate, a foot seat, a pressure cap, a push foot screw, a channel steel, a lap plate, an upper mounting plate, a push rod limit plate, a middle welding plate, a lower mounting plate, a connecting plate, a nut and a pin shaft. The length of the push rod and the channel steel is adapted to the thickness of the wall; the lower mounting plate is connected to the fixed bracket in the mounting bracket part through the pin shaft, and the foot seat is clamped to the wall by adjusting the push foot screw.

8. A fuel assembly gripper rack according to any one of claims 1 to 7, characterized in that: The adjustable bracket components include a bracket base plate, eye screws, bracket side plates, a mounting base plate, a reinforcing rib plate, a bearing seat, a screw, a positive thread nut, a negative thread nut, an adjusting handwheel, a bearing, a slide rail and a slider. The bracket base plate of the adjustable bracket component is fixed to the mounting bracket component by bolts, and two slide rails are fixed to the bracket base plate by screws; four sliders are installed on the slide rails, and the mounting base plate is fixed to the sliders by bolts, and moves left and right along the slide rails together with the sliders; the adjusting handwheel is fixed to the end of the screw, and the positive thread nut and the negative thread nut are fixed to the bracket side plate, and the positive thread nut and the negative thread nut cooperate with the screw.

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