Rectangular fuel element hanging basket

Abstract

The utility model discloses a rectangular fuel element hanging basket which comprises a hanging lug and a hanging basket body, the connecting end of the hanging lug is connected with the hanging basket body, the hanging end of the hanging lug is provided with a hanging hole, a fuel storage cavity is formed in the hanging basket body, and the fuel storage cavity is used for containing a rectangular fuel element. The rectangular fuel elements can be loaded through the fuel storage cavity in the hanging basket body, after the rectangular fuel elements are loaded, the hanging basket can be transported, and the rectangular fuel elements can be protected against damage. When the rectangular fuel element is tested and detected, the hanging basket can be clamped by the hanging basket clamping tool, so that the hook in the test container passes through the lifting hole of the lifting lug, and the rectangular fuel element is fixed in the test container. The requirements of loading, transferring, testing and the like of the rectangular fuel element are met.

Description

TECHNICAL FIELD

[0001] The utility model relates to nuclear fuel element transportation technical field especially is a kind of rectangular fuel element basket. BACKGROUND

[0002] Nuclear fuel basket is an important component in nuclear power industry, provides necessary physical support and isolation, prevents fuel element from accidental movement or collision during storage and transportation, so as to avoid possible breakage and radioactive leakage, ensure the safety of nuclear fuel. The traditional basket is designed for cylindrical fuel rod, for rectangular fuel element, due to the structure and fuel rod is different, cannot use the basket of fuel rod to load and transport rectangular fuel element. Therefore, a basket for rectangular fuel element is needed to meet the needs of loading, transfer, protection and experimental research of rectangular fuel element. SUMMARY

[0003] Therefore, the technical problem to be solved by the present application is to provide a rectangular fuel element basket to meet the needs of loading, transfer, protection and experimental research of rectangular fuel element.

[0004] To solve the above problems, the present application provides a rectangular fuel element basket, comprising: lug and basket body, the connecting end of the lug is connected with the basket body, the lug hole is arranged at the loading end of the lug, the fuel storage cavity is arranged in the basket body, and the fuel storage cavity is used for accommodating rectangular fuel element.

[0005] Optionally, the basket body comprises first baffle and second baffle, the first baffle and the second baffle are oppositely arranged, the inner side of the first baffle and the second baffle is provided with groove, the groove of the first baffle and the groove of the second baffle are oppositely arranged, and the fuel storage cavity is formed.

[0006] Optionally, the basket body comprises clamping part at upper part and supporting part at lower part, the clamping part is used for clamping the basket by clamping tool, the supporting part is connected with the clamping part, the cavity is arranged in the middle of the supporting part, the cavity is communicated with the fuel storage cavity, and the rectangular fuel element is contacted with water.

[0007] Optionally, the clamping part comprises first clamping baffle on the first baffle and second clamping baffle on the second baffle, the loading port is arranged above the second clamping baffle, and the rectangular fuel element is loaded or unloaded.

[0008] Optionally, the grooves on the first baffle and the second baffle comprise a first groove corresponding to the clamping part and a second groove corresponding to the supporting part, the first groove is connected with the second groove, and the depth of the first groove is greater than the depth of the second groove.

[0009] Optionally, the first clamping baffle and the second clamping baffle are hollow baffles.

[0010] Optionally, the supporting part comprises a first side plate, a second side plate and a bottom beam, the clamping part, the first side plate, the second side plate and the bottom beam form the cavity, the side surface of the first side plate and the second side plate is provided with a plurality of holes, and the bottom beam is provided with a plurality of holes.

[0011] Optionally, the side surface of the upper end and the lower end of the first clamping baffle and the second clamping baffle is provided with a connecting component, the upper part of the first baffle and the second baffle is connected through the connecting component, and the lower part of the first baffle and the second baffle is connected through the bottom beam.

[0012] Optionally, the first baffle and the second baffle are welded or connected through bolts.

[0013] Optionally, the shape of the lifting hole is a polygon.

[0014] Beneficial effects

[0015] The rectangular fuel element lifting basket provided in the embodiment of the utility model can load rectangular fuel elements through the fuel storage cavity inside the lifting basket main body, can transport the lifting basket after loading the rectangular fuel elements, and can protect the rectangular fuel elements from being damaged. When testing and detecting the rectangular fuel elements, the lifting basket can be clamped by the lifting basket clamping tool, the hook in the test container can pass through the lifting hole of the lifting lug, and the rectangular fuel elements can be fixed in the test container. Meet the loading, transportation and testing of rectangular fuel elements.

[0016] The above description is only a summary of the technical scheme of the application. In order to make the technical means of the application more clear, the application can be implemented according to the content of the specification, and in order to make the above and other purposes, characteristics and advantages of the application more obvious and easy to understand, the following specific embodiments of the application are described. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 A rectangular fuel element lifting basket provided by the embodiment of the application is shown in the main view structure diagram;

[0018] Figure 2 A rectangular fuel element lifting basket provided by the embodiment of the application is shown in the main view structure diagram;

[0019] Figure 2 B is a side view structure diagram of a rectangular fuel element basket provided by the embodiment of the application for loading rectangular fuel elements;

[0020] Figure 3 A is a sectional view structure diagram of a rectangular fuel element basket provided by the embodiment of the application;

[0021] Figure 3 B is a sectional view structure diagram of a rectangular fuel element basket provided by the embodiment of the application for loading rectangular fuel elements;

[0022] Figure 4 A top view structure diagram of a rectangular fuel element provided by the embodiment of the application.

[0023] Illustration:

[0024] 1, lug; 11, lifting hole; 2, basket body; 20, fuel storage cavity; 201, cavity; 21, first baffle; 22, second baffle; 211, first clamping baffle; 221, second clamping baffle; 230, clamping part; 240, support part; 241, first side plate; 242, second side plate; 243, bottom crossbeam; 30, rectangular fuel element. DETAILED DESCRIPTION

[0025] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0026] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0027] In the present application, unless otherwise clearly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0028] The preferred embodiments of the utility model are described below in combination with the drawings, and it should be understood that the preferred embodiments described herein are only used to illustrate and explain the utility model, and are not used to limit the utility model.

[0029] In combination with the drawings Figures 1 to 4 As shown in the drawings, according to the embodiments of the present application, a rectangular fuel element basket is provided, which comprises a lifting lug 1 and a basket body 2, the connecting end of the lifting lug 1 is connected with the basket body 2, the lifting hole 11 is arranged at the loading end of the lifting lug 1, and the inside of the basket body 2 is provided with a fuel storage cavity 20, which is used for accommodating the rectangular fuel element.

[0030] The rectangular fuel element basket provided by the embodiments of the present application can load the rectangular fuel element 30 through the fuel storage cavity 20 of the basket body 2, and after loading the rectangular fuel element 30, the basket can be transported. For example, the basket is placed on a transfer trolley through a basket clamping tool such as a mechanical hand, and the rectangular fuel element 30 is transported through the transfer trolley. The rectangular fuel element 30 is placed in the fuel storage cavity 20 inside the basket, and does not directly contact the transfer trolley, thereby avoiding mutual contamination between the transfer trolley and the rectangular fuel element 30, and protecting the rectangular fuel element 30 from being damaged. When the rectangular fuel element 30 is tested and analyzed, the basket can be clamped by the basket clamping tool, the hook in the test container passes through the lifting hole of the lifting lug, and the rectangular fuel element 30 is fixed in the test container.

[0031] Among them, the basket body 2 is a rectangular structure as a whole, and the lifting lug 1 is arranged above the basket body 2, so that the rectangular fuel element 30 can be in a vertical state when being hung.

[0032] Among them, the lifting hole 11 can be a polygon matched with the hook, for example, a rectangle, so as to be stably hung on the hook and avoid violent shaking of the basket.

[0033] The basket body 2 comprises a first baffle 21 and a second baffle 22, the first baffle 21 and the second baffle 22 are oppositely arranged, the inner sides of the first baffle 21 and the second baffle 22 are both provided with grooves, the grooves of the first baffle 21 and the second baffle 22 are oppositely arranged, and the fuel storage cavity 20 is formed.

[0034] Specifically, the basket body 2 includes two front and back baffles, i.e., a first baffle 21 and a second baffle 22, and the side (i.e., the inner side) where the first baffle 21 and the second baffle 22 are connected is provided with a groove. After the first baffle 21 and the second baffle 22 are spliced, the space formed by the groove in the middle is the fuel storage cavity 20 for loading the rectangular fuel elements 30.

[0035] The grooves on the first baffle 21 and the second baffle 22 are symmetrical to each other, and the sizes of the first baffle 21, the second baffle 22, and the groove are determined according to the size of the rectangular fuel element 30, and need to ensure that the rectangular fuel element 30 can be accommodated. As shown in Figure 1 The dashed part is the rectangular fuel element 30 loaded in the basket.

[0036] The basket body 2 includes a clamping portion 230 at the upper portion and a support portion 240 at the lower portion. The clamping portion 230 is used to enable the basket clamping tool to clamp the basket, and the support portion 240 is connected with the clamping portion 230. The support portion 240 is provided with a cavity 201 in the middle, which is in communication with the fuel storage cavity 20 and is used to enable the rectangular fuel element 30 to be in contact with water.

[0037] Specifically, after the rectangular fuel element 30 is loaded in the basket, the basket needs to be clamped for movement or transferred to a transport vehicle when the rectangular fuel element 30 needs to be transported. In this embodiment, the clamping portion 230 at the upper portion of the basket body 2 can provide support for the basket clamping tool. For example, a mechanical hand can grab the clamping portion 230 to transfer the basket.

[0038] When the fuel element is tested, the irradiated fuel element is usually soaked in water. In this embodiment, the support portion 240 is provided with the cavity 201 in the middle, which penetrates the basket body 2 in the front-rear direction and is in communication with the fuel storage cavity 20. After the rectangular fuel element 30 is loaded into the basket, it can be directly and fully in contact with water at the position of the cavity 201. That is, the cavity 201 can increase the area of the rectangular fuel element 30 in contact with water.

[0039] The cavity 201 can be one or multiple. Generally, the larger the area of the cavity 201, the better the effect. The shape of the cavity 201 can be rectangular, circular, elliptical, etc.

[0040] In one embodiment, taking the rectangular fuel element 30 with the size of 240mm*48mm*3mm as an example, the height of the basket body 2 can be 250mm, and the width can be 56mm. The height of the clamping portion 230 can be 80mm, and the height of the support portion 240 can be 170mm.

[0041] The clamping part 230 includes a first clamping baffle 211 on the first baffle 21 and a second clamping baffle 221 on the second baffle 22, and a loading port is arranged above the second clamping baffle 221 for loading and unloading the rectangular fuel element 30.

[0042] The clamping part 230 is connected with the lifting lug 1 above and connected with the supporting part 240 below, and a loading port is arranged above the clamping part 230, so that the rectangular fuel element 30 can be inserted into the basket through the loading port above the clamping part 230 by a mechanical hand or other clamping tools.

[0043] Specifically, the first clamping baffle 211 and the second clamping baffle 221 of the clamping part 230 are connected with the lifting lug 1 above, and the lifting lug 1 will block the opening above the first clamping baffle 211 and the second clamping baffle 221, so that the rectangular fuel element 30 cannot be directly inserted or taken out from the opening above the first clamping baffle 211 and the second clamping baffle 221. Figure 2 and Figure 3 As shown in the drawings, the embodiment is provided with a cut corner above one of the clamping baffles, for example, the second clamping baffle 221, so as to increase the opening blocked by the lifting lug and form a loading port, thereby achieving the loading and unloading of the rectangular fuel element 30.

[0044] The grooves on the first baffle 21 and the second baffle 22 include a first groove corresponding to the clamping part 230 and a second groove corresponding to the supporting part 240, and the first groove is connected with the second groove, and the depth of the first groove is greater than that of the second groove.

[0045] Due to the blocking of the lifting lug 1, the rectangular fuel element 30 cannot be completely parallel to the basket body 2 during the process of being inserted into the basket or taken out from the basket, and a certain angle will be formed between the rectangular fuel element 30 and the basket body 2. Based on this, when designing the fuel storage cavity 20, a certain space needs to be left in the thickness direction of the rectangular fuel element 30 to ensure that the rectangular fuel element 30 can be smoothly loaded into the basket.

[0046] In addition, the thickness of the fuel storage cavity 20 should not be too large, so as to avoid causing the rectangular fuel element 30 to shake and be damaged. Therefore, the fuel storage cavity 20 of the embodiment is only provided with a slightly larger thickness in the vicinity of the loading port to eliminate the influence caused by the blocking of the lifting lug 1, and a conventional thickness is still adopted below the fuel storage cavity 20 to reduce the shaking of the rectangular fuel element. That is, the grooves on the first baffle 21 and the second baffle 22 can be divided into a first groove and a second groove according to the thickness, the first groove corresponds to the position of the clamping part 230, the second groove corresponds to the position of the supporting part 240, and the depth of the first groove is greater than that of the second groove.

[0047] In an embodiment, the ratio of the thickness of the hanger 1 to the thickness of the basket body 2 is about 1:2.5, the angle of the cut corner provided above the second clamping baffle 221 can be 120° with respect to the vertical plane, and the thickness of the fuel storage cavity 20 above can be about 1mm greater than the thickness below, taking the rectangular fuel element 30 with a size of 240mm*48mm*3mm as an example.

[0048] The first clamping baffle 211 and the second clamping baffle 221 are hollow baffles. Specifically, a plurality of holes can be provided on the first clamping baffle 211 and the second clamping baffle 221, so that the aqueous solution in the experimental container can also enter the fuel storage cavity 20 from the holes during the test, thereby increasing the contact area of the rectangular fuel element 30 with water and enabling the rectangular fuel element to be in full contact with water.

[0049] In the embodiment, the rectangular fuel element hanger can be made of stainless steel, which can provide support and protection for the rectangular fuel element 30 and can also prevent rusting after long-term immersion in water.

[0050] The support part 240 includes a first side plate 241, a second side plate 242, and a bottom cross beam 243. The clamping part 230, the first side plate 241, the second side plate 242, and the bottom cross beam 243 form a cavity 201. The side surfaces of the first side plate 241 and the second side plate 242 are provided with a plurality of holes, and the bottom cross beam 243 is provided with a plurality of holes.

[0051] Specifically, the support part 240 of the first baffle 21 and the second baffle 22 is a symmetrical structure and has a first side plate 241, a second side plate 242, and a bottom cross beam 243. Taking one of them as an example, the first side plate 241 and the second side plate 242 are located between the clamping part 230 and the bottom cross beam 243 and are arranged perpendicularly to the clamping part 230 and the bottom cross beam 243. The area between the first side plate 241, the second side plate 242, the bottom cross beam 243, and the clamping part 230 is a cavity 201. The side surfaces of the first side plate 241 and the second side plate 242 are provided with a plurality of holes for increasing the contact area of the rectangular fuel element 30 with water. The bottom cross beam 243 is also provided with a plurality of holes for enabling the rectangular fuel element 30 to be in full contact with water.

[0052] The side surfaces of the upper and lower ends of the first clamping baffle 211 and the second clamping baffle 221 are provided with connecting components. The upper part of the first baffle 21 and the second baffle 22 is connected through the connecting components, and the lower part of the first baffle 21 and the second baffle 22 is connected through the bottom cross beam 243.

[0053] Specifically, the bottom of the first baffle plate 21 and the second baffle plate 22 are connected together by the bottom cross beam 243 to support the rectangular fuel element 30. The side of the first baffle plate 21 and the second baffle plate 22 is connected by the connecting component of the first clamping baffle plate 211 and the second clamping baffle plate 221 on the top and the bottom cross beam 243 on the bottom to block the rectangular fuel element 30 from falling on the side of the basket. The connecting component of the first clamping baffle plate 211 and the second clamping baffle plate 221 can be a symmetrically arranged rectangular protrusion. After the first baffle plate and the second baffle plate are spliced together, the part of the rectangular protrusion can be in contact with each other, and then can be connected together by welding or bolts and the like. Similarly, the first baffle plate 21 and the second baffle plate 22 can also be connected by welding or bolts and the like at the bottom cross beam 243.

[0054] Since the thickness of the rectangular fuel element 30 is thin, it is easy to bubble after irradiation and has a high level of radiation dose. Direct use of mechanical hands and other clamping tools for transfer may cause damage to the fuel element. The rectangular fuel element basket provided in the embodiment of the present application can realize the loading, transfer and protection of the rectangular fuel element 30, avoid direct contact between the mechanical hand and the rectangular fuel element 30 during the transfer process, protect the integrity of the rectangular fuel element 30, and reduce radioactive contamination. In addition, when testing and detecting the rectangular fuel element 30, based on the need for experimental research, the rectangular fuel element 30 needs to be kept in an upright state, and the rectangular fuel element 30 needs to be in contact with water in a large area during the test. The rectangular fuel element basket provided in the embodiment of the present application is provided with a cavity 201 in the middle of the basket main body 2, and a plurality of holes are provided on the clamping baffle, the side plate and the bottom cross beam, which can keep the rectangular fuel element 30 in an upright state and in contact with water in a large area, and meet the test requirements. In addition, the rectangular fuel element basket provided in the embodiment of the present application is easy to manufacture, the loading mode of the rectangular fuel element 30 is simple and convenient, and the clamping tool such as the mechanical hand is easy to operate in the hot cell and the glove box, which lays a foundation for the smooth development of subsequent analysis test.

[0055] Those skilled in the art will readily understand that the above advantageous modes can be freely combined and superimposed without conflict.

[0056] The above is only a preferred embodiment of the present application, and should not be used to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application. The above is only a preferred embodiment of the present application, and should not be used to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A rectangular fuel element basket characterized by, The utility model relates to a kind of fuel element storage and loading device, including: The lug (1) and the basket body (2), the connecting end of the lug (1) is connected with the basket body (2), the lug (1) is equipped with lifting hole (11) in the end of being hung, the basket body (2) is equipped with fuel storage cavity (20) inside, the fuel storage cavity (20) is used to accommodate rectangular fuel element (30).

2. The rectangular fuel element basket of claim 1, wherein, The basket body (2) includes first baffle (21) and second baffle (22), the first baffle (21) and second baffle (22) are oppositely arranged, the inner side of the first baffle (21) and the second baffle (22) is equipped with recess, the recess of the first baffle (21) is oppositely arranged with the recess of the second baffle (22), forms the fuel storage cavity (20).

3. The rectangular fuel element basket of claim 2, wherein, The basket body (2) includes clamping portion (230) located in upper portion and support portion (240) located in lower portion, the clamping portion (230) is used to make basket clamping tool clamp basket, the support portion (240) is connected with the clamping portion (230), the middle of the support portion (240) is equipped with cavity (201), the cavity (201) is communicated with the fuel storage cavity (20), for making rectangular fuel element (30) contact with water.

4. The rectangular fuel element basket of claim 3, wherein, The clamping portion (230) includes first clamping baffle (211) located on the first baffle (21) and second clamping baffle (221) located on the second baffle (22), the second clamping baffle (221) is equipped with loading port above, for loading and unloading rectangular fuel element (30).

5. The rectangular fuel element basket of claim 3, wherein, The recess on the first baffle (21) and the second baffle (22) includes first recess corresponding with the clamping portion (230) and second recess corresponding with the support portion (240), the first recess is connected with the second recess, the depth of the first recess is greater than the depth of the second recess.

6. The rectangular fuel element basket of claim 4, wherein, The first clamping baffle (211) and the second clamping baffle (221) are hollow baffles.

7. The rectangular fuel element basket of claim 4, wherein, The support portion (240) includes first side plate (241), second side plate (242) and bottom crossbeam (243), the clamping portion (230) and the first side plate (241), the second side plate (242) and the bottom crossbeam (243) enclose the cavity (201), the side of the first side plate (241) and the second side plate (242) is equipped with multiple channels, and the bottom crossbeam (243) is equipped with multiple channels.

8. The rectangular fuel element basket of claim 7, wherein, The side of the upper end and the lower end of the first clamping baffle (211) and the second clamping baffle (221) is equipped with connecting component, the upper portion of the first baffle (21) and the second baffle (22) is connected through the connecting component, and the lower portion of the first baffle (21) and the second baffle (22) is connected through the bottom crossbeam (243).

9. The rectangular fuel element basket of claim 8, wherein, The first baffle (21) and the second baffle (22) are welded or connected by bolt.

10. The rectangular fuel element basket of claim 1, wherein, The shape of the lifting hole (11) is polygon.

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