Adjustable transport storage device and special transport vehicle for spent fuel packages

Abstract

The scheme provides an adjustable transport storage device for spent fuel packages. A plurality of adjustable transport storage devices are arranged at the spent fuel package installation position of a special transport vehicle. The adjustable transport storage devices are arranged circumferentially at the installation position. A fixed baffle is fixed on the bottom plate of the special transport vehicle. A movable baffle slides relative to the fixed baffle. After the spent fuel package is placed, the extended length of the movable baffle is adjusted according to the outer dimensions of the spent fuel package. After the spent fuel package is adjusted in place, the relative displacement of the fixed baffle and the movable baffle is limited by the limit assembly, which can effectively resist the influence of shear force during transportation, improve the stability of the spent fuel package when installed on the special transport vehicle, and is beneficial to the safety of transportation. In addition, the spent fuel package can be adaptively adjusted according to the different outer dimensions of the spent fuel package to prevent looseness between the spent fuel package and the adjustable transport storage device. The scheme also provides a special transport vehicle.

Description

Technical Field

[0001] The utility model belongs to the technical field of transportation and storage, and particularly relates to an adjustable transportation and storage device for spent fuel packages and a special transportation tool. Background Art

[0002] Spent fuel refers to nuclear fuel that has been burned in a reactor and is no longer used in the reactor. Spent fuel is a highly radioactive item and has characteristics such as nuclear criticality risk, which brings complex problems such as containment, shielding, heat dissipation, and nuclear criticality prevention to its transportation. Therefore, its safety must be ensured during transportation to avoid harm to the environment and humans. As a by-product of nuclear energy utilization, spent fuel is a difficult problem to handle, transport, and store with current technical means.

[0003] At present, spent fuel needs to be transported in the form of cargo packages, that is, the spent fuel is wrapped with at least one layer of packaging container to form a cargo package (also called a shelf). Whether it is transported by road, rail, water or air, cargo packages are the basic unit for transporting radioactive materials. Since dangerous goods are loaded, the packaging containers of radioactive materials must have characteristics such as shock absorption, puncture resistance, high temperature resistance, and water immersion resistance.

[0004] In the prior art, the cargo package is connected to the dedicated transport vehicle for spent fuel by a number of bolts, and the bolts need to withstand certain accelerations in the horizontal, longitudinal and vertical directions. According to the requirements of nuclear and radiation safety analysis, bolts generally do not withstand shear forces, and other solutions are needed to eliminate the shear forces brought to the spent fuel cargo package during transportation.

[0005] Therefore, how to overcome the above technical defects is a problem that needs to be solved urgently by those skilled in the art. Utility Model Content

[0006] The utility model aims to provide an adjustable transport storage device for spent fuel packages and a special transport vehicle, which can effectively improve the stability of the spent fuel packages when installed on the special transport vehicle and can match spent fuel packages of different sizes.

[0007] In order to solve the above technical problems, the utility model provides an adjustable transport storage device for spent fuel packages, comprising:

[0008] Fixed baffle for installation on the floor of a special transport vehicle;

[0009] A movable baffle, one end of which is slidably disposed on the fixed baffle, and the other end of which faces the spent fuel bag and is used to abut against the spent fuel bag;

[0010] A limiting assembly, used for limiting the relative displacement between the fixed baffle and the movable baffle;

[0011] Therein, the adjustable transport storage devices are multiple and are arranged in the circumference of the spent fuel package.

[0012] Optionally, in the above-mentioned adjustable transport storage device for spent fuel packages, at least two of the plurality of adjustable transport storage devices are respectively arranged on the lateral sides of the spent fuel package and at least two are respectively arranged on the longitudinal sides of the spent fuel package.

[0013] Optionally, in the above-mentioned adjustable transport storage device for spent fuel packages, a slide groove is provided on the fixed baffle plate, and a position limiting component mounting hole for mounting the position limiting component is provided on the fixed baffle plate;

[0014] The movable baffle is slidably connected to the sliding groove of the fixed baffle.

[0015] Optionally, in the above-mentioned adjustable transport storage device for spent fuel packages, the slide slot is the central cavity of the fixed baffle;

[0016] Or, the slide groove is provided on a side wall surface of the fixed baffle;

[0017] Alternatively, the slide grooves are two slide rails extending from two sides of the fixed baffle, and the two slide rails are respectively slidably connected to two sides of the movable baffle.

[0018] Optionally, in the above-mentioned adjustable transport storage device for spent fuel packages, the movable baffle is provided with a plurality of limiting holes along the sliding direction, and the limiting assembly is a card block for cooperating with the limiting holes for limiting.

[0019] Optionally, in the above-mentioned adjustable transport and storage device for spent fuel packages, the movable baffle is provided with a guide groove along the sliding direction, and a plurality of limit holes are provided on the guide groove, and the card block can be slidably connected with the guide groove in an unlimited state, and inserted into the corresponding limit hole for limiting in a limited state.

[0020] Optionally, in the above-mentioned adjustable transport storage device for spent fuel packages, the fixed baffle is provided with a plurality of threaded holes along the sliding direction, and the limiting assembly is a limiting bolt for threadably cooperating with the threaded holes.

[0021] The utility model provides a special transport vehicle, which comprises a vehicle body and the above-mentioned adjustable transport storage device for spent fuel packages.

[0022] Optionally, in the above-mentioned special transportation vehicle, the fixed baffle is welded to the bottom plate of the special transportation vehicle, or is an integrally formed structure with the bottom plate.

[0023] Optionally, in the above-mentioned special transport vehicle, a plurality of bolt holes are arranged on the bottom plate, and some of the bolt holes correspond to the bolt connection holes on the spent fuel package.

[0024] The utility model provides an adjustable transport storage device for spent fuel packages, which has the following beneficial effects:

[0025] A number of adjustable transport storage devices are arranged at the installation position of the spent fuel package of the special transport vehicle. The adjustable transport storage devices are arranged in the circumferential direction of the installation position. The fixed baffle is fixed on the bottom plate of the special transport vehicle. The movable baffle slides relative to the fixed baffle. After the spent fuel package is placed, the extension length of the movable baffle is adjusted according to the outer dimensions of the spent fuel package. After the adjustment is in place, the relative displacement of the fixed baffle and the movable baffle is limited by the limit assembly. Therefore, adaptive adjustment can be made for the situation where the outer dimensions of the spent fuel package are not completely consistent.

[0026] Through the above-mentioned arrangement, the influence of shear force during transportation can be effectively resisted, the stability of the spent fuel package during installation on a special transport vehicle is improved, and the safety of transportation is beneficial. In addition, adaptive adjustments can be made according to the different outer dimensions of the spent fuel package to prevent looseness between the spent fuel package and the adjustable transport storage device.

[0027] The utility model also provides a special transport tool, which is provided with the above-mentioned adjustable transport storage device for spent fuel packages. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0029] Figure 1 A schematic structural diagram of an adjustable transport storage device for spent fuel packages provided in an embodiment of the utility model in one form;

[0030] Figure 2 A schematic structural diagram of an adjustable transport storage device for spent fuel packages provided in an embodiment of the utility model in another form;

[0031] Figure 3 A top view of an adjustable transport storage device for a spent fuel package provided in an embodiment of the utility model installed on a bottom plate (the adjustable transport storage device in the figure only indicates its distribution position, and does not show its details);

[0032] Figure 4 A three-dimensional structural diagram of an adjustable transport storage device for spent fuel packages provided in an embodiment of the utility model installed on a bottom plate (the adjustable transport storage device in the figure only indicates its distribution position, and does not show its details).

[0033] In the above picture:

[0034] 1-adjustable transport storage device; 101-fixed baffle; 1011-slide rail; 102-movable baffle; 103-limiting assembly;

[0035] 2- bottom plate;

[0036] 3- Spent fuel packages. DETAILED DESCRIPTION

[0037] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0038] The core of the utility model is to provide an adjustable transport storage device and a special transport vehicle for spent fuel packages, which can effectively improve the stability of the spent fuel packages when installed on the special transport vehicle and can match spent fuel packages of different sizes.

[0039] In order to enable those skilled in the art to better understand the technical solution provided by the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0040] Specifically, please refer to Figure 1-Figure 4 The utility model provides an adjustable transport storage device 1 for a spent fuel package, comprising: a fixed baffle 101, a movable baffle 102 and a limiting assembly 103.

[0041] The fixed baffle 101 is used to be installed on the bottom plate 2 of a special transportation vehicle, and can be installed on the bottom plate 2 of the vehicle by welding, bolt connection, etc.

[0042] One end of the movable baffle 102 is slidably disposed on the fixed baffle 101, and the other end faces the spent fuel package 3 and is used to abut against the spent fuel package 3. The movable baffle 102 is a retractable component on the adjustable transport storage device 1, and can adaptively compensate for the deviation of the outer dimensions of the spent fuel package 3 by adjusting its own extended length.

[0043] The limiting assembly 103 is used to limit the relative displacement between the fixed baffle 101 and the movable baffle 102 .

[0044] There are multiple adjustable transport storage devices 1 , which are arranged circumferentially around the spent fuel package 3 , and can strengthen and fix the spent fuel package 3 in both the lateral and longitudinal directions.

[0045] The present solution provides an adjustable transport storage device 1 for spent fuel packages. A plurality of adjustable transport storage devices 1 are arranged at the installation position of the spent fuel package 3 of the special transport vehicle. The adjustable transport storage devices 1 are arranged circumferentially at the installation position. The fixed baffle 101 is fixed on the bottom plate 2 of the special transport vehicle. The movable baffle 102 slides relative to the fixed baffle 101. After the spent fuel package 3 is placed, the extension length of the movable baffle 102 is adjusted according to the outer dimensions of the spent fuel package 3. After the adjustment is in place, the relative displacement of the fixed baffle 101 and the movable baffle 102 is limited by the limit assembly 103. Thus, adaptive adjustment can be made for the situation where the outer dimensions of the spent fuel package 3 are not completely consistent.

[0046] Through the above-mentioned arrangement, the influence of shear force during transportation can be effectively resisted, the stability of the spent fuel package 3 when installed on a special transportation vehicle is improved, which is beneficial to the safety of transportation, and adaptive adjustment can be made according to the different outer dimensions of the spent fuel package 3 to prevent looseness between the spent fuel package 3 and the adjustable transportation storage device 1.

[0047] In order to resist the influence of shear force during transportation, adjustable transport storage devices 1 are provided in both the lateral and longitudinal directions of the spent fuel package 3. At least two of the multiple adjustable transport storage devices 1 are provided on both lateral sides of the spent fuel package 3, and at least two are provided on both longitudinal sides of the spent fuel package 3.

[0048] The above-mentioned multiple adjustable transport storage devices 1 are divided into a fixed part and a movable part when the basic sizes of the spent fuel packages 3 are not much different. The fixed part is a fixed slider, which is welded or integrally arranged on the bottom plate 2. The movable part can flexibly adjust its extension length, which is equivalent to a telescopic mechanism, so that it can abut against the spent fuel packages 3, thereby adapting to the fixation of spent fuel packages 3 of different sizes on the bottom plate 2. The adjustable transport storage device 1 arranged horizontally mainly plays the role of resisting horizontal shear force, and the adjustable transport storage device 1 arranged vertically plays the role of resisting vertical shear force.

[0049] In a specific embodiment, a slide groove is provided on the fixed baffle 101, and a position limiting component 103 mounting hole for mounting the position limiting component 103 is provided on the fixed baffle 101. The movable baffle 102 is slidably connected with the slide groove of the fixed baffle 101.

[0050] In one form, such as Figure 1As shown, the slide groove is the central cavity of the fixed baffle 101 , and the fixed baffle 101 surrounds the movable baffle 102 to form a cavity that wraps around and can be slidably connected to the movable baffle 102 .

[0051] In another form, the slide groove is opened on a side wall of the fixed baffle 101.

[0052] In another form, Figure 2 As shown, the slide grooves are two slide rails 1011 extending from both sides of the fixed baffle 101 , and the two slide rails 1011 are slidably connected to both sides of the movable baffle 102 .

[0053] On the basis of the above specific embodiments, a plurality of limiting holes can be opened in the movable baffle 102 along the sliding direction, and the plurality of limiting holes are arranged at intervals, and the limiting assembly 103 is a clamping block used to cooperate with the limiting holes for limiting. When the movable baffle 102 moves to a suitable position, the corresponding limiting hole is selected, and the clamping block is clamped with the limiting hole to achieve limiting.

[0054] Further, such as Figure 1 The movable baffle 102 is provided with a guide groove along the sliding direction, and a plurality of limiting holes are provided on the guide groove. The block can be slidably connected with the guide groove in the unlimited state, and inserted into the corresponding limiting hole for limiting in the limited state.

[0055] On the basis of the above specific embodiment, the fixed baffle 101 is provided with a plurality of threaded holes along the sliding direction, and the limiting assembly 103 is a limiting bolt used to threadably cooperate with the threaded hole. Of course, only one threaded hole may be provided on the fixed baffle 101, and the limiting assembly 103 is a limiting bolt used to threadably cooperate with the threaded hole. When the movable baffle 102 moves to a suitable position, the limiting bolt is tightened to tighten and squeeze the end face of the fixed baffle 101, so as to achieve the limiting of the two.

[0056] In addition, the utility model also provides a special transport vehicle, including a vehicle body and the adjustable transport storage device 1 for spent fuel packages of the above specific embodiment.

[0057] In a specific embodiment, the fixed baffle 101 is welded to the bottom plate 2 of the special transportation vehicle, or the fixed baffle 101 and the bottom plate 2 are an integrally formed structure, such as an integrally cast structure.

[0058] A plurality of bolt holes are pre-set on the bottom plate 2 at the installation position of the spent fuel package 3, and some of the bolt holes correspond to the bolt connection holes on the spent fuel package 3. Of course, the bottom plate 2 can also pre-set structures such as a fixed baffle 101 at the installation position of the spent fuel package 3.

[0059] With such arrangement, the extension length of the adjustable transport storage device 1 can be adjusted as needed to avoid the spent fuel packages 3 being unable to be installed on the bottom plate 2 of the special transport vehicle due to tolerances in the manufacturing process, and seamless connection between the adjustable transport storage device 1 and the spent fuel packages 3 can also be achieved.

[0060] In the description of this application, the meaning of "plurality" is more than two. If there is a description of "first" or "second", it is only for the purpose of distinguishing the technical features, and it cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0061] As shown in this application and claims, unless the context clearly indicates an exception, the words "a", "an", "a kind" and / or "the" do not refer to the singular, but also include the plural. Generally speaking, the terms "include" and "comprise" only indicate the inclusion of clearly identified steps and elements, and these steps and elements do not constitute an exclusive list. The method or device may also include other steps or elements. The elements defined by the sentence "includes a..." do not exclude the existence of other identical elements in the process, method, commodity or device that includes the elements.

[0062] In the description of the embodiments of the present application, unless otherwise specified, " / " means or, for example, A / B can mean A or B; "and / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, in the description of the embodiments of the present application, "multiple" means two or more than two.

[0063] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.

[0064] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0065] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. An adjustable transport storage device for spent fuel packages, characterized in that: include: Fixed baffle for installation on the floor of a special transport vehicle; A movable baffle, one end of which is slidably disposed on the fixed baffle, and the other end of which faces the spent fuel bag and is used to abut against the spent fuel bag; A limiting assembly, used for limiting the relative displacement between the fixed baffle and the movable baffle; Therein, the adjustable transport storage devices are multiple and are arranged in the circumference of the spent fuel package.

2. The adjustable transport storage device for spent fuel packages according to claim 1, characterized in that: At least two of the plurality of adjustable transport storage devices are respectively arranged on two lateral sides of the spent fuel package, and at least two are respectively arranged on two longitudinal sides of the spent fuel package.

3. The adjustable transport storage device for spent fuel packages according to claim 1, characterized in that: The fixed baffle is provided with a slide groove, and the fixed baffle is provided with a position limiting component installation hole for installing the position limiting component; The movable baffle is slidably connected to the sliding groove of the fixed baffle.

4. The adjustable transport storage device for spent fuel packages according to claim 3, characterized in that: The slide groove is the central cavity of the fixed baffle; Or, the slide groove is provided on a side wall surface of the fixed baffle; Alternatively, the slide grooves are two slide rails extending from two sides of the fixed baffle, and the two slide rails are respectively slidably connected to two sides of the movable baffle.

5. The adjustable transport storage device for spent fuel packages according to claim 4, characterized in that: The movable baffle is provided with a plurality of limiting holes along the sliding direction, and the limiting assembly is a clamping block used for cooperating with the limiting holes for limiting.

6. The adjustable transport storage device for spent fuel packages according to claim 5, characterized in that: The movable baffle is provided with a guide groove along the sliding direction, and a plurality of limit holes are provided on the guide groove. The clamping block can be slidably connected with the guide groove in an unlimited state, and inserted into the corresponding limit hole for limiting in a limited state.

7. The adjustable transport storage device for spent fuel packages according to claim 4, characterized in that: The fixed baffle is provided with a plurality of threaded holes along the sliding direction, and the limiting assembly is a limiting bolt used for threadably cooperating with the threaded holes.

8. A special transport vehicle, characterized in that: It comprises a vehicle body and the adjustable transport storage device for spent fuel packages as described in any one of claims 1 to 7.

9. The dedicated transport vehicle according to claim 8, characterized in that: The fixed baffle is welded to the bottom plate of the special transport vehicle, or is an integrally formed structure with the bottom plate.

10. The dedicated transportation vehicle according to claim 8, characterized in that: A plurality of bolt holes are arranged on the bottom plate, and some of the bolt holes correspond to the bolt connection holes on the spent fuel package.

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