Sealing protection equipment for uranium hexafluoride transportation container

Abstract

The utility model provides sealing protection equipment for a uranium hexafluoride transportation container. The sealing protection equipment comprises a shell and a locking assembly. The shell comprises an upper shell body and a lower shell body which are detachably connected, the upper shell body covers the lower shell body, and the upper shell body and the lower shell body are connected in a sealed mode. An upper cavity is formed in the upper shell, a lower cavity is formed in the lower shell, and the lower cavity and the upper cavity are communicated and form a containing cavity used for containing a transportation container. The locking assembly comprises an upper lock seat and a lower lock seat, the upper lock seat is arranged on the periphery of the bottom of the upper shell, and the lower lock seat is arranged on the periphery of the top of the lower shell. The upper lock seat comprises an upper lock plate, the lower lock seat comprises a lower lock groove, and / or the lower lock seat comprises a lower lock plate, and the upper lock seat comprises an upper lock groove. The transportation container is further packaged through the sealing protection equipment of the uranium hexafluoride transportation container, and the safety state of the transportation container in the transportation process is guaranteed. In addition, the upper locking plate is connected with the lower locking groove in an inserted mode, and / or the lower locking plate is connected with the upper locking groove in an inserted mode, so that the connection strength between the upper shell and the lower shell can be enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of container transportation, and particularly relates to a sealing and protecting device for a uranium hexafluoride transportation container. Background Art

[0002] For the transportation of some items such as radioactive items, only relying on international standard containers to store and transport radioactive items. With the progress of test methods and detection means, the existing containers basically cannot meet the safety requirements for the transportation of radioactive items. Specifically, when accidents such as collision and drop of the container occur, it is easy to cause leakage of the valve of the container; or when accidents such as fire occur, it is easy to cause the radioactive items inside the container to liquefy or vaporize due to heat absorption, resulting in an increase in the internal pressure of the container and threatening the safety of the container.

[0003] Therefore, in order to ensure the safety state of the container during the transportation of radioactive items, it is urgent to further package the container to reduce the impact and heat transfer caused by accidents such as drop, impact, and fire on the radioactive item container. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a sealing and protecting device for a uranium hexafluoride transportation container. By further packaging the transportation container with this sealing and protecting device for the uranium hexafluoride transportation container, it can reduce the impact and heat transfer caused by accidents such as drop, impact, and fire on the transportation container, and thus ensure the safety state of the transportation container during transportation.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] According to one aspect of the present application, the present application provides a sealing and protecting device for a uranium hexafluoride transportation container to accommodate and protect the transportation container. The sealing and protecting device for the uranium hexafluoride transportation container includes:

[0007] A housing, which includes a detachable upper housing and a lower housing. The upper housing is covered on the lower housing, and the upper housing is hermetically connected to the lower housing; an upper cavity is formed inside the upper housing, and a lower cavity is formed inside the lower housing. The lower cavity communicates with the upper cavity and constitutes an accommodation cavity for accommodating the transportation container;

[0008] A locking assembly, which includes an upper locking seat and a lower locking seat. The upper locking seat is arranged on the outer periphery of the lower end of the upper housing, and the lower locking seat is arranged on the outer periphery of the upper end of the lower housing; the upper locking seat includes an upper locking plate, and the lower locking seat includes a lower locking groove corresponding to the upper locking plate, and / or, the lower locking seat includes a lower locking plate, and the upper locking seat includes an upper locking groove corresponding to the lower locking plate;

[0009] Wherein, when the upper housing covers the lower housing, the upper locking plates are inserted into the lower locking grooves one by one, and / or, the lower locking plates are inserted into the upper locking grooves one by one.

[0010] In some embodiments, the upper locking seat includes a seat body portion and a plurality of the upper locking plates. The seat body portion is fixed to the outer side of the lower end of the upper housing. The plurality of upper locking plates are spaced apart on the seat body portion, and the upper locking plates extend downward beyond the bottom end face of the upper housing.

[0011] The upper locking seat further includes a plurality of upper locking grooves, and the upper locking grooves are formed between two adjacent upper locking plates.

[0012] In some embodiments, the lower locking seat includes a main body portion and a plurality of the lower locking grooves. The main body portion is fixed to the outer side of the upper end of the lower housing, and the plurality of lower locking grooves are spaced apart.

[0013] The lower locking seat further includes a plurality of lower locking plates, and the lower locking grooves are formed between two adjacent lower locking plates. The lower locking plates extend upward beyond the top end face of the lower housing.

[0014] In some embodiments, the upper locking seat includes the upper locking plates and the upper locking grooves, and through holes are provided on the upper locking plates.

[0015] The lower locking seat includes the lower locking plates and the lower locking grooves, and through holes are provided on the lower locking plates. When the upper locking plates are inserted into the lower locking grooves and the lower locking plates are inserted into the upper locking grooves, the through holes communicate with the through holes.

[0016] The locking assembly further includes a locking member, and the locking member passes through the through holes and the through holes.

[0017] In some embodiments, the locking member includes a locking portion and a limiting portion. The locking portion passes through the through holes and the through holes; the outer diameter of the limiting portion is greater than the inner diameter of the through holes or the inner diameter of the through holes.

[0018] The locking assembly further includes a locking element, and the locking element passes through the upper locking seat and extends into the limiting portion to be detachably connected to the limiting portion, or, the locking element passes through the lower locking seat and extends into the limiting portion to be detachably connected to the limiting portion.

[0019] In some embodiments, the locking element is snap-connected to the limiting portion;

[0020] A card slot is provided on the limiting portion, and the locking element passes through the upper locking seat or the lower locking seat and extends into the card slot to be snap-connected to the limiting portion.

[0021] In some embodiments, a limiting groove is provided on the bottom end face of the upper housing, and a limiting platform protrudes from the top end face of the lower housing. When the upper housing covers the lower housing, the limiting platform is received and limited within the limiting groove, and the outer circumference of the limiting platform fits against the inner circumferential wall of the limiting groove;

[0022] A sealing gasket is provided between the top end face of the lower housing and the bottom end face of the upper housing.

[0023] In some embodiments, the sealing and protecting device for the uranium hexafluoride transport container further includes a valve protection cover. One end of the valve protection cover is open to form a protection cavity for receiving the valve of the transport container, and the open end of the valve protection cover is fixedly connected to the outer wall of the transport container.

[0024] In some embodiments, the sealing and protecting device for the uranium hexafluoride transport container further includes a valve protector. The valve protector is disposed within the lower housing and at the axial end of the lower housing;

[0025] The valve protector is provided with a receiving groove for receiving the valve protection cover, and the valve protector is used to support the valve protection cover.

[0026] In some embodiments, a first detector is provided on the valve protection cover for detecting a first concentration signal within the protection cavity.

[0027] In some embodiments, the sealing and protecting device for the uranium hexafluoride transport container further includes an anti-rotation member. The anti-rotation member is disposed within the lower housing. The anti-rotation member includes an anti-rotation shaft that can be telescoped relative to the lower housing, and the axis of the anti-rotation shaft is perpendicular to the axis of the lower housing;

[0028] An anti-rotation hole is correspondingly provided on the transport container. The anti-rotation shaft can extend into or withdraw from the anti-rotation hole, and is used to lock or unlock the rotation of the transport container along its own circumferential direction.

[0029] In some embodiments, the sealing and protecting device for the uranium hexafluoride transport container further includes a buffer pad. The buffer pad is disposed on the bottom wall of the lower housing for buffering and protecting the transport container;

[0030] A second detector is provided within the receiving cavity for detecting a second concentration signal within the receiving cavity.

[0031] From the above technical solutions, it can be seen that the present utility model has at least the following advantages and positive effects:

[0032] By further packaging the transportation container with the sealing and protection device for uranium hexafluoride transportation container in this application, the impact and heat transfer caused by accidents such as dropping, impact, and fire on the transportation container can be reduced, thereby ensuring the safety state of the transportation container during the transportation of radioactive substances.

[0033] Further, when the upper shell is covered on the lower shell, the upper locking plates are inserted into the lower locking grooves one by one, and / or the lower locking plates are inserted into the upper locking grooves one by one, so as to lock the upper shell and the lower shell, and strengthen the connection strength between the upper shell and the lower shell to meet the safety requirements for transporting the items stored in the transportation container.

[0034] In addition, the upper shell and the lower shell are hermetically connected, so that the accommodating cavity formed by enclosing the upper shell and the lower shell is a closed space, which can block the material exchange between the outside and the accommodating cavity, and thus can better protect the transportation container located in the accommodating cavity. Brief Description of the Drawings

[0035] Figure 1 is a schematic structural diagram of the sealing and protection device for uranium hexafluoride transportation container in this embodiment.

[0036] Figure 2 is Figure 1 a sectional view taken along the A-A direction of the sealing and protection device for uranium hexafluoride transportation container in

[0037] Figure 3 is a side view of the sealing and protection device for uranium hexafluoride transportation container in this embodiment.

[0038] Figure 4 is Figure 3 a schematic enlarged view of the structure at B in

[0039] Figure 5 is a schematic structural diagram of the locking assembly in the unlocked state in this embodiment.

[0040] Figure 6 is a schematic structural diagram of the locking assembly in the locked state in this embodiment.

[0041] Figure 7 is Figure 1 a sectional view taken along the A-A direction of the sealing and protection device for uranium hexafluoride transportation container in which the transportation container is accommodated in

[0042] Figure 8 is a schematic partial structural diagram of the sealing and protection device for uranium hexafluoride transportation container in this embodiment.

[0043] Figure 9 is a schematic structural diagram of the anti-rotation member in the locked state in this embodiment.

[0044] Figure 10It is a schematic structural diagram of the anti-rotation part in the unlocked state in this embodiment.

[0045] The description of the reference numerals in the drawings is as follows:

[0046] 100, transportation container; 110, valve;

[0047] 1, outer shell; 11, upper shell; 111, upper inner shell; 112, upper outer shell; 113, upper connecting wall; 114, upper heat insulation cavity; 12, lower shell; 121, limiting platform; 122, lower inner shell; 123, lower outer shell; 124, lower connecting wall; 125, lower heat insulation cavity; 13, accommodating cavity;

[0048] 2, locking assembly; 21, upper locking seat; 211, seat body part; 212, upper locking plate; 213, upper locking groove; 22, lower locking seat; 221, main body part; 222, lower locking groove; 223, lower locking plate; 23, locking part; 231, locking part; 232, limiting part; 2321, clamping groove; 24, connecting part; 25, locking part;

[0049] 3, sealing gasket;

[0050] 4, valve protection cover; 41, protection cavity;

[0051] 5, valve protector;

[0052] 61, first detector; 62, second detector;

[0053] 7, anti-rotation part; 71, anti-rotation shaft; 72, mounting seat; 73, receiving shell; 74, handle;

[0054] 81, buffer pad; 82, lifting lug; 83, saddle seat; 84, fork connecting part; 841, fork groove; 85, nameplate. Detailed implementation manners

[0055] The typical implementation manners reflecting the features and advantages of the present utility model will be described in detail in the following description. It should be understood that the present utility model can have various changes in different implementation manners, all of which do not depart from the scope of the present utility model, and the descriptions and illustrations therein are essentially for illustrative purposes and not for limiting the present utility model.

[0056] In the description of the present application, it should be understood that in the embodiments shown in the drawings, the indication of the direction or position relationship (such as up, down, left, right, front and back, etc.) is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. When these elements are in the positions shown in the drawings, these descriptions are appropriate. If the description of the positions of these elements changes, the indication of these directions will also change accordingly.

[0057] In addition, 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 quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of this application, "a plurality of" means two or more unless otherwise specifically defined.

[0058] With the exponential growth in the quantity of radioactive substances, such as uranium hexafluoride, that need to be transported and stored, the transportation container 100 for such substances has become increasingly important. Uranium hexafluoride, for example, is an intermediate product in processes such as uranium conversion, uranium enrichment, and nuclear fuel element manufacturing. Under normal transportation conditions, uranium hexafluoride is solid, but in the event of a fire accident, it liquefies due to heat absorption, which can easily cause the pressure inside the transportation container 100 to rise, thereby threatening the safety of the transportation container 100. The transportation container 100 for uranium hexafluoride is an international standard container. With the progress of test methods and detection means, it has now been proven that existing standard containers basically cannot meet the safety requirements for transporting uranium hexafluoride, specifically manifested as leakage of the valve 110 after the free fall test of the transportation container 100 and increases in temperature and pressure during a fire.

[0059] To solve the above problems, this application provides a sealing and protection device for a uranium hexafluoride transportation container, which is used to accommodate and protect the transportation container 100, further package the transportation container 100, and can reduce the impact and heat transfer caused by accidents such as dropping, impact, and fire on the transportation container 100, thereby ensuring the safety of the transportation container 100 during transportation.

[0060] In this application, the transportation container 100 for storing and transporting uranium hexafluoride is used as an example for illustration.

[0061] The following, in conjunction with the accompanying drawings, will provide a detailed description of specific embodiments of the sealing and protection device for the uranium hexafluoride transportation container of this application.

[0062] Figure 1 It is a schematic structural diagram of the sealing and protection device for the uranium hexafluoride transportation container in this embodiment.

[0063] Refer to Figure 1, The sealing and protecting device for the uranium hexafluoride transport container includes a housing 1 and a locking assembly 2. The housing 1 includes a detachable upper housing 11 and a lower housing 12. The upper housing 11 covers the lower housing 12. An upper cavity is formed inside the upper housing 11, and a lower cavity is formed inside the lower housing 12. The lower cavity communicates with the upper cavity and constitutes a receiving cavity 13 for accommodating the transport container 100. The locking assembly 2 includes an upper locking seat 21 and a lower locking seat 22. The upper locking seat 21 is provided on the outer periphery of the bottom of the upper housing 11, and the lower locking seat 22 is provided on the outer periphery of the top of the lower housing 12. The upper locking seat 21 includes an upper locking plate 212, the lower locking seat 22 includes a lower locking groove 222 corresponding to the upper locking plate 212, and / or the lower locking seat 22 includes a lower locking plate 223, and the upper locking seat 21 includes an upper locking groove 213 corresponding to the lower locking plate 223.

[0064] The above-mentioned sealing and protecting device for the uranium hexafluoride transport container further packages the transport container 100, which can reduce the impact and heat transfer caused by accidents such as dropping, impact, and fire on the transport container 100, thereby ensuring the safety state of the transport container 100 during the transportation of uranium hexafluoride.

[0065] Further, when the upper housing 11 is closed on the lower housing 12, the upper locking plates 212 are inserted into the lower locking grooves 222 one by one, and / or the lower locking plates 223 are inserted into the upper locking grooves 213 one by one, which can lock the upper housing 11 and the lower housing 12, and strengthen the connection strength between the upper housing 11 and the lower housing 12 to meet the safety requirements for the transportation of uranium hexafluoride.

[0066] In addition, the upper housing 11 and the lower housing 12 are hermetically connected, so that the receiving cavity 13 formed by enclosing the upper housing 11 and the lower housing 12 is a closed space, which can block the exchange of substances (such as water vapor, heat, etc.) between the outside and the receiving cavity 13, and thus can better protect the transport container 100 located in the receiving cavity 13.

[0067] For the convenience of description, the axial direction of the housing 1 is defined as the longitudinal direction, and the direction perpendicular to the longitudinal direction and located in the horizontal plane is defined as the transverse direction.

[0068] Figure 2 For Figure 1 The sectional view in the A-A direction of the sealing and protecting device for the uranium hexafluoride transport container in the middle.

[0069] In this embodiment, the housing 1 is cylindrical. In other embodiments, the housing 1 may also be in a cuboid structure.

[0070] A receiving cavity 13 for accommodating the transport container 100 is formed inside the housing 1. Among them, the peripheral side wall of the receiving cavity 13 is cylindrical, and the peripheral side wall of the receiving cavity 13 is adapted to the outer periphery of the transport container 100, so as to better accommodate and limit the transport container 100 and ensure the safety of the transport container 100 during transportation.

[0071] Reference Figure 1 and Figure 2 In this embodiment, the housing 1 includes an upper housing 11 and a lower housing 12, and the upper housing 11 is covered on the lower housing 12.

[0072] An upper cavity is formed in the upper housing 11, and a lower cavity is formed in the lower housing 12. When the upper housing 11 is covered on the lower housing 12, the lower cavity communicates with the upper cavity and forms a receiving cavity 13 for receiving the transport container 100.

[0073] In this embodiment, the upper housing 11 and the lower housing 12 are hermetically connected, so that the receiving cavity 13 formed by enclosing the upper housing 11 and the lower housing 12 is a closed space, thereby being able to block the material exchange between the outside and the receiving cavity 13. For example, when the transport container 100 leaks, it can prevent the leaked uranium hexafluoride from overflowing the sealed protection equipment of the uranium hexafluoride transport container, so as to avoid environmental pollution and harm to human health; or, it can better block external heat from entering the receiving cavity 13 and better block external water vapor from entering the receiving cavity 13, and further better protect the transport container 100 located in the receiving cavity 13.

[0074] Specifically, a sealing gasket 3 is provided between the top end face of the lower housing 12 and the bottom end face of the upper housing 11. The sealing gasket 3 is used to fill the gap at the connection between the upper housing 11 and the lower housing 12, so as to achieve the seal between the upper housing 11 and the lower housing 12 and improve the sealing performance of the receiving cavity 13.

[0075] In this embodiment, the bottom end face of the upper housing 11 and the top end face of the lower housing 12 are detachably connected, so that the upper housing 11 can be detached from the lower housing 12 to facilitate taking out or putting in the transport container 100; or, when the upper housing 11 is covered on the lower housing 12, the upper housing 11 and the lower housing 12 can be connected to form an integral body, the lower cavity communicates with the upper cavity and forms a receiving cavity 13 for receiving the transport container 100, so that the upper housing 11 and the lower housing 12 cooperate to protect the transport container 100 located in the receiving cavity 13.

[0076] In this embodiment, a limiting groove is provided on the bottom end surface of the upper housing 11, and a limiting platform 121 protrudes from the top end surface of the lower housing 12. When the upper housing 11 covers the lower housing 12, the limiting platform 121 is received and limited in the limiting groove, and the outer circumference of the limiting platform 121 fits with the inner circumferential wall of the limiting groove to achieve the snap connection between the upper housing 11 and the lower housing 12. That is, in this embodiment, the upper housing 11 and the lower housing 12 are snap-connected through the concave-convex structure of the limiting groove and the limiting platform 121 to achieve the detachable connection between the upper housing 11 and the lower housing 12. In addition, the above design can further improve the sealing performance and heat insulation performance of the accommodation cavity 13 of the housing 1, so as to block the material exchange between the outside and the accommodation cavity 13. For example, it can prevent the uranium hexafluoride leaked when the transportation container 100 leaks from overflowing the sealing protection equipment of the uranium hexafluoride transportation container, so as to avoid environmental pollution and endanger human health; or, it can better prevent external heat from entering the accommodation cavity 13, and can better block external water vapor from entering the accommodation cavity 13, and further can better protect the transportation container 100 located in the accommodation cavity 13.

[0077] In other embodiments, the limiting groove can also be provided on the top end surface of the lower housing 12. Correspondingly, the limiting platform 121 can be provided on the bottom end surface of the upper housing 11.

[0078] In other embodiments, one lateral end of the upper housing 11 and the lower housing 12 can be hinged through a hinge, and the other lateral end of the upper housing 11 and the lower housing 12 is detachably connected. That is, the opening and closing of the accommodation cavity 13 can be achieved by rotating the upper housing 11 relative to the lower housing 12.

[0079] Specifically in this embodiment, the upper housing 11 includes an upper inner shell 111, an upper outer shell 112 spaced apart from the outer circumference of the upper inner shell 111, and an upper connecting wall 113 connecting the upper inner shell 111 and the upper outer shell 112.

[0080] One end of the upper outer shell 112 is open and hollow inside to form an upper accommodation space, and one end of the upper inner shell 111 is open and hollow inside to form an upper cavity. That is, the cross-sections of the upper inner shell 111 and the upper outer shell 112 are both in a U-shaped structure.

[0081] The upper inner shell 111 is received in the upper accommodation space, and the open ends of the upper inner shell 111 and the upper outer shell 112 are flush.

[0082] The upper connecting wall 113 is connected between the open ends of the upper inner shell 111 and the upper outer shell 112, and the upper connecting wall 113, the upper inner shell 111 and the upper outer shell 112 enclose an upper heat insulation cavity 114.

[0083] In this embodiment, the upper connecting wall 113 is hermetically connected to both the upper inner shell 111 and the upper outer shell 112, so that the upper heat insulation cavity 114 is a closed space.

[0084] In this embodiment, a limiting groove with an open bottom is formed on the upper connecting wall 113. The middle of the upper connecting wall 113 is open, and the opening of the upper connecting wall 113 communicates with the upper cavity.

[0085] In this embodiment, the upper connecting wall 113 is welded to the upper inner shell 111 and the upper outer shell 112 to achieve a sealed connection.

[0086] In other embodiments, the upper connecting wall 113 may be an integral structure with the upper inner shell 111, that is, the upper connecting wall 113 is formed by bending outward from the open end of the upper inner shell 111, and the end of the upper connecting wall 113 away from the upper inner shell 111 is hermetically connected to the upper outer shell 112. Or, the upper connecting wall 113 may be an integral structure with the upper outer shell 112, that is, the upper connecting wall 113 is formed by bending inward from the open end of the upper outer shell 112, and the end of the upper connecting wall 113 away from the upper outer shell 112 is hermetically connected to the upper inner shell 111.

[0087] In this embodiment, a filling material is provided in the upper heat insulation cavity 114 to achieve the effects of buffering and heat insulation, relieve the external impact force, and block the transfer of external heat to the inside of the upper cavity. Since the upper heat insulation cavity 114 is a closed space, it can prevent external water vapor and other external factors from contacting the filling material and affecting the performance of the filling material, thereby ensuring the normal effect of the filling material.

[0088] Exemplarily, the filling material may be a polymer, such as polyurethane, which has high corrosion resistance and is convenient for long-term use, that is, it has a long service life; and, since it is relatively light, it is convenient for installation and handling.

[0089] In other embodiments, the filling material may also be aluminosilicate blanket, refractory fiber special-shaped hard products, etc., and the specific setting is determined according to needs.

[0090] In this embodiment, the lower housing 12 includes a lower inner shell 122, a lower outer shell 123 spaced outside the lower inner shell 122, and a lower connecting wall 124 connecting the lower inner shell 122 and the lower outer shell 123.

[0091] One end of the lower outer shell 123 is open and hollow to form a lower accommodation space, and one end of the lower inner shell 122 is open and hollow to form a lower cavity. The cross-sections of the lower inner shell 122 and the lower outer shell 123 are both arc-shaped structures. When the upper housing 11 is covered on the lower housing 12, the lower inner shell 122 and the upper inner shell 111 enclose a cylindrical structure, and the lower outer shell 123 and the upper outer shell 112 enclose a cylindrical structure.

[0092] The lower inner shell 122 is accommodated in the lower accommodation space, and the open end of the lower inner shell 122 is flush with the open end of the lower outer shell 123.

[0093] The lower connecting wall 124 is connected between the open ends of the lower inner shell 122 and the lower outer shell 123. The lower connecting wall 124, the lower inner shell 122, and the lower outer shell 123 enclose a lower heat insulation cavity 125.

[0094] In this embodiment, the lower connecting wall 124 is hermetically connected to both the lower inner shell 122 and the lower outer shell 123, so that the lower heat insulation cavity 125 is a sealed space.

[0095] The middle of the lower connecting wall 124 is open, and the opening of the lower connecting wall 124 communicates with the lower cavity. When the upper shell 11 is covered on the lower shell 12, the upper cavity and the lower cavity communicate through the opening of the upper connecting wall 113 and the opening of the lower connecting wall 124.

[0096] A limiting platform 121 protrudes from the top end face of the lower connecting wall 124. When the upper shell 11 is covered on the lower shell 12, the limiting platform 121 on the lower connecting wall 124 extends into the limiting groove on the upper connecting wall 113. And at least one side of the inner and outer sides of the limiting platform 121 is provided with a sealing gasket 3 to fill between the upper connecting wall 113 and the lower connecting wall 124 to ensure the sealing performance of the shell 1.

[0097] In this embodiment, the lower connecting wall 124 is welded to the lower inner shell 122 and the lower outer shell 123 to achieve a sealed connection.

[0098] In other embodiments, the lower connecting wall 124 can be an integral structure with the lower inner shell 122, that is, the lower connecting wall 124 is formed by bending outward from the open end of the lower inner shell 122, and the end of the lower connecting wall 124 far from the lower inner shell 122 is hermetically connected to the lower outer shell 123. Or, the lower connecting wall 124 can be an integral structure with the lower outer shell 123, that is, the lower connecting wall 124 is formed by bending inward from the open end of the lower outer shell 123, and the end of the lower connecting wall 124 far from the lower outer shell 123 is hermetically connected to the lower inner shell 122.

[0099] In this embodiment, a filling material is provided in the lower heat insulation cavity 125 to achieve the effects of buffering and heat insulation, relieve the external impact force, and block the external heat from being transferred to the inside of the lower cavity. Since the lower heat insulation cavity 125 is a sealed space, it can prevent external factors such as external water vapor from contacting the filling material and affecting the performance of the filling material, thereby ensuring the normal function effect of the filling material. Among them, the filling material in the lower heat insulation cavity 125 is the same as the filling material in the upper heat insulation cavity 114.

[0100] Figure 3 It is a side view of the sealing and protecting device for the uranium hexafluoride transportation container in this embodiment. Figure 4 is Figure 3 the enlarged structural schematic diagram at B in Figure 5 It is a structural schematic diagram of the locking assembly 2 in the unlocked state in this embodiment.Figure 6 This is a schematic structural diagram of the locking component 2 in the locked state in this embodiment.

[0101] Reference Figure 1 、 Figures 3 to 6 , the locking component 2 is located at the connection between the upper shell 11 and the lower shell 12, and is used to realize the locking between the upper shell 11 and the lower shell 12, which can strengthen the connection strength between the upper shell 11 and the lower shell 12 to ensure the safety of the transportation of the transportation container 100.

[0102] In this embodiment, the number of the locking components 2 is multiple, and the multiple locking components 2 are arranged at intervals in the circumferential direction at the connection between the upper shell 11 and the lower shell 12, and the multiple locking components 2 cooperate with each other to strengthen the connection strength between the upper shell 11 and the lower shell 12.

[0103] In other embodiments, when the transverse end of the upper shell 11 is hinged to the transverse end of the lower shell 12, the multiple locking components 2 are distributed at intervals in the longitudinal direction at one end away from the hinge between the upper shell 11 and the lower shell 12, or the multiple locking components 2 are distributed at intervals at one end away from the hinge between the upper shell 11 and the lower shell 12 and at both longitudinal ends.

[0104] The locking component 2 includes an upper locking seat 21 and a lower locking seat 22. The upper locking seat 21 is arranged on the outer periphery of the lower end of the upper shell 11, and the lower locking seat 22 is arranged on the outer periphery of the upper end of the lower shell 12. The upper locking seat 21 includes an upper locking plate 212, and the lower locking seat 22 includes a lower locking groove 222 corresponding to the upper locking plate 212, and / or the lower locking seat 22 includes a lower locking plate 223, and the upper locking seat 21 includes an upper locking groove 213 corresponding to the lower locking plate 223. Among them, when the upper shell 11 covers the lower shell 12, the upper locking plates 212 are inserted into the lower locking grooves 222 one by one, and / or the lower locking plates 223 are inserted into the upper locking grooves 213 one by one to realize the connection between the upper locking seat 21 and the lower locking seat 22, and further lock the upper shell 11 and the lower shell 12.

[0105] In this embodiment, the upper locking seat 21 includes a seat body part 211 and a plurality of upper locking plates 212. Among them, the upper locking seat 21 is fixed on the outer side of the lower end of the upper shell 11, and the plurality of upper locking plates 212 are distributed at intervals on the seat body part 211, and the upper locking plates 212 extend downward beyond the bottom end face of the upper shell 11. Among them, when the upper locking seat 21 is located at the transverse end of the upper shell 11, the plurality of upper locking plates 212 are distributed at intervals in the longitudinal direction. When the upper locking seat 21 is located at the longitudinal end of the upper shell 11, the plurality of upper locking plates 212 are distributed at intervals in the transverse direction.

[0106] In this embodiment, the upper locking seat 21 may further include a plurality of upper locking grooves 213. Among them, an upper locking groove 213 is formed between two adjacent upper locking plates 212. The opening of the upper locking groove 213 faces downward.

[0107] The lower lock base 22 includes a main body portion 221 and a plurality of lower lock grooves 222. The main body portion 221 is fixed to the outer side of the upper end of the lower housing 12, and the plurality of lower lock grooves 222 are spaced apart.

[0108] The lower lock base 22 may further include a plurality of lower lock plates 223. A lower lock groove 222 is formed between two adjacent lower lock plates 223, and the lower lock plates 223 extend upward beyond the top end face of the lower housing 12. Among them, when the lower lock base 22 is located at the transverse end of the lower housing 12, the plurality of lower lock plates 223 are spaced apart along the transverse direction. When the lower lock base 22 is located at the longitudinal end of the lower housing 12, the plurality of lower lock plates 223 are spaced apart along the transverse direction.

[0109] In this embodiment, when the upper housing 11 is covered on the lower housing 12, the upper lock plates 212 can be inserted into the lower lock grooves 222 one by one. At the same time, the lower lock plates 223 can be inserted into the upper lock grooves 213 one by one, so that the adjacent upper lock plates 212 and lower lock plates 223 can be abutted against each other, thereby realizing the double locking between the upper lock base 21 and the lower lock base 22, strengthening the locking effect of the locking assembly 2, and thus better improving the connection strength between the upper housing 11 and the lower housing 12.

[0110] In other embodiments, only the upper lock plates 212 may be provided on the upper lock base 21. Adaptively, the lower lock grooves 222 are correspondingly provided on the lower lock base 22. Or, only the upper lock grooves 213 may be provided on the upper lock base 21. Adaptively, the lower lock plates 223 are correspondingly provided on the lower lock base 22.

[0111] Reference Figures 3 to 6 In this embodiment, the locking assembly 2 further includes a locking member 23. The locking member 23 passes through the upper lock base 21 and the outer shell 1, or the locking member 23 passes through the lower lock base 22 and the outer shell 1 to further lock the upper lock base 21 and the lower lock base 22, ensuring the connection strength between the upper lock base 21 and the lower lock base 22, and further realizing the third - layer locking between the upper housing 11 and the lower housing 12, and further ensuring the connection strength between the upper housing 11 and the lower housing 12.

[0112] Among them, the upper locking plate 212 is provided with a perforation, and the lower locking plate 223 is provided with a through hole corresponding to the perforation. The axes of the perforation and the through hole both extend longitudinally. During actual application, when the upper locking plate 212 is inserted into the lower locking groove 222 and the lower locking plate 223 is inserted into the upper locking groove 213, the perforation and the through hole can communicate with each other, and the locking member 23 can pass through the perforation and the through hole at the same time and be inserted on the upper locking plate 212 and the lower locking plate 223 to connect the upper locking plate 212 and the lower locking plate 223 into one body, thereby preventing the upper locking plate 212 from detaching from the lower locking groove 222 and the lower locking plate 223 from detaching from the upper locking groove 213, ensuring the connection strength between the upper locking seat 21 and the lower locking seat 22, and further realizing the third-layer locking between the upper housing 11 and the lower housing 12, and further ensuring the connection strength between the upper housing 11 and the lower housing 12.

[0113] In other embodiments, when the upper locking seat 21 only includes the upper locking plate 212 and the lower locking seat 22 is correspondingly provided with the lower locking groove 222, the axis of the perforation on the upper locking plate 212 can be set to extend horizontally, and a groove body is correspondingly provided on the outer shell 1 so that the locking member 23 can pass through the perforation and extend into the groove body to be clamped or screwed with the outer shell 1. Or, when the upper locking seat 21 is only provided with the upper locking groove 213 and the lower locking seat 22 is correspondingly provided with the lower locking plate 223, the axis of the through hole on the lower locking plate 223 can be set to extend horizontally, and a groove body is correspondingly provided on the outer shell 1 so that the locking member 23 can pass through the through hole and extend into the groove body to be clamped or screwed with the outer shell 1. Specifically, the groove body is provided on the limiting table 121.

[0114] When the axis of the perforation (through hole) extends horizontally, the locking member 23 will extend into the perforation (through hole) in a state where its axis extends horizontally. Since the upper locking plate 212 and the lower locking groove 222 (the lower locking plate 223 and the upper locking groove 213) are inserted vertically, when the locking member 23 is inserted between the upper locking plate 212 (or the lower locking plate 223) and the limiting table 121, the locking member 23 is perpendicular to the upper locking plate 212 (or the lower locking plate 223) to limit the vertical movement of the upper locking plate 212 to detach from the lower locking groove 222 (or the lower locking plate 223 to detach from the upper locking groove 213), ensuring the connection strength between the upper locking seat 21 and the lower locking seat 22, and further realizing the third-layer locking between the upper housing 11 and the lower housing 12, and further ensuring the connection strength between the upper housing 11 and the lower housing 12.

[0115] In this embodiment, the locking member 23 can be connected to the upper locking seat 21 or the lower locking seat 22 through the connecting member 24 to facilitate the storage of the locking member 23. Exemplarily, the connecting member 24 can be structures such as a chain or a rope.

[0116] In this embodiment, the locking member 23 includes a locking portion 231 and a limiting portion 232. The locking portion 231 is used to pass through the through hole and the through hole, and further lock the upper locking seat 21 and the lower locking seat 22. The outer diameter of the limiting portion 232 is greater than the inner diameter of the through hole or the through hole.

[0117] In this embodiment, the locking assembly 2 further includes a locking member 25. The locking member 25 passes through the upper locking seat 21 and extends into the limiting portion 232, and is connected to the limiting portion 232. There is an included angle between the locking member 25 and the locking member 23. Since there is an included angle between the locking member 25 and the limiting portion 232 when the locking member 25 is connected to the limiting portion 232, and since the locking member 25 passes through the upper locking seat 21, the upper locking seat 21 can prevent the locking member 25 from tilting, and can keep the locking member 25 stationary relative to the upper locking seat 21, thereby preventing the locking member 25 from driving the locking member 23 to move, so as to prevent the locking member 23 from moving longitudinally and withdrawing from the through hole and the through hole. In this way, the position of the locking member 23 can be locked, and then the fourth locking between the upper housing 11 and the lower housing 12 can be realized to further ensure the connection strength between the upper housing 11 and the lower housing 12. In other embodiments, the locking member 25 can also pass through the lower locking seat 22 and extend into the limiting portion 232, and be connected to the limiting portion 232.

[0118] In this embodiment, the locking member 25 is movably connected to the upper locking seat 21, and the locking member 25 is detachably connected to the upper locking seat 21, and can move vertically relative to the upper locking seat 21, and can extend out of the upper locking seat 21 to facilitate connection with the limiting portion 232, or retract into the upper locking seat 21 to be received inside the upper locking seat 21.

[0119] Exemplarily, the locking member 25 is snap-fitted with the limiting portion 232. Specifically, a card slot 2321 is provided on the limiting portion 232. The limiting portion 232 is inserted into the through hole and the through hole with the opening of the card slot 2321 facing upward. The locking member 25 passes through the upper locking seat 21 and extends downward into the card slot 2321 to be snap-fitted with the limiting portion 232 to limit the longitudinal movement of the locking member 23.

[0120] In other embodiments, when the locking member 25 passes through the lower locking seat 22, the limiting portion 232 is inserted into the through hole and the through hole with the opening of the card slot 2321 facing downward. The locking member 25 passes through the lower locking seat 22 and extends upward into the card slot 2321 to be snap-fitted with the limiting portion 232 to limit the longitudinal movement of the locking member 23.

[0121] In some other embodiments, the locking member 25 can also be screwed to the limiting portion 232. Specifically, an external thread is provided on the locking member 25. An internal thread matching the external thread is provided on the inner peripheral wall of the card slot 2321 of the limiting portion 232. The external thread and the internal thread are screwed together to realize the connection between the locking member 25 and the limiting portion 232.

[0122] In other embodiments, a nut may also be provided on the limiting portion 232 to be screwed with the locking member 25.

[0123] Figure 7 For Figure 1 Figure A-A sectional view of the sealing protection device for the uranium hexafluoride transport container in the content of the transport container 100.

[0124] Reference Figure 7 In this embodiment, the sealing protection device for the uranium hexafluoride transport container further includes a valve protection cover 4. One end of the valve protection cover 4 is open to form a protection cavity 41 for accommodating the valve 110 of the transport container 100. In actual application, the open end of the valve protection cover 4 is aligned with the valve 110 of the transport container 100, and the valve 110 of the transport container 100 is completely accommodated in the protection cavity 41. The open end of the valve protection cover 4 is fixedly connected to the outer wall of the transport container 100, so that a closed space is formed by enclosing the valve protection cover 4 and the outer wall of the transport container 100, realizing the sealing protection of the valve 110.

[0125] Among them, the valve 110 of the transport container 100 serves as the first sealing structure of the transport container 100. The valve protection cover 4 can serve as the second sealing structure for the transport container 100 to cope with the situation where the valve 110 of the transport container 100 fails and prevent the uranium hexafluoride in the transport container 100 from overflowing. In addition, the gasket 3 between the upper housing 11 and the lower housing 12 can serve as the third sealing structure for the transport container 100. The three sealing structures cooperate to make the entire sealing protection device for the uranium hexafluoride transport container and the transport container 100 have excellent sealing performance, which can better prevent the uranium hexafluoride in the transport container 100 from overflowing and avoid heat exchange between the transport container 100 and the outside, thus better ensuring the safety of the transport container 100.

[0126] Reference Figure 2 And Figure 7 In this embodiment, the sealing protection device for the uranium hexafluoride transport container further includes a valve protector 5. The valve protector 5 is arranged in the lower housing 12 and at the longitudinal end of the lower housing 12. The valve protector 5 is provided with a receiving groove for accommodating the valve protection cover 4. The valve protector 5 is used to support the valve protection cover 4 to protect the valve protection cover 4, and can prevent the transport container 100 from being impacted by the impact force during transportation, resulting in the valve protection cover 4 colliding with the sealing protection device of the uranium hexafluoride transport container, and further causing damage or even failure of the valve 110 of the transport container 100. Therefore, the setting of the valve protector 5 can further ensure the safety of the valve 110 of the transport container 100.

[0127] Among them, one end of the valve protector 5 away from its connection with the lower housing 12 is open, and the valve protector 5 is penetrated at both ends perpendicular to the opening direction thereof, so as to facilitate accommodating the valve protection cover 4.

[0128] In this embodiment, the valve protector 5 is hinged to the lower housing 12. Specifically, the valve protector 5 is hinged to the top surface of the longitudinal end of the lower housing 12 through a hinge member. The valve protector 5 can rotate relative to the top surface of the lower housing 12 in a direction away from the lower cavity to remove the obstruction to the transport container 100, so as to facilitate taking out the transport container 100 from the lower housing 12 or placing it in the lower housing 12. Or, the valve protector 5 can rotate relative to the top surface of the lower housing 12 in a direction close to the lower cavity, so that the valve protector 5 stands upright on the lower housing 12, making the opening of the accommodating groove of the valve protector 5 face upward, and the accommodating groove penetrate longitudinally along the lower housing 12, so as to facilitate accommodating the valve protection cover 4.

[0129] In this embodiment, the sealing protection device of the uranium hexafluoride transport container further includes a first detector 61. The first detector 61 is arranged on the valve protection cover 4 and is used for detecting the first concentration signal in the protection cavity 41. That is to say, the first detector 61 is used for detecting whether the valve 110 of the transport container 100 leaks.

[0130] In this embodiment, the sealing protection device of the uranium hexafluoride transport container further includes a second detector 62. The second detector 62 is arranged in the accommodating cavity 13 and is used for detecting the second concentration signal in the accommodating cavity 13. That is to say, the second detector 62 is used for detecting whether the valve protection cover 4 leaks.

[0131] Among them, the first detector 61 and the second detector 62 cooperate with each other to be able to perform two detections on whether the transport container 100 leaks, so as to facilitate the staff to make corresponding countermeasures.

[0132] In this embodiment, the first detector 61 and the second detector 62 can be communicatively connected to the mobile terminal of the staff or the operation panel on the transfer vehicle through a wireless module, and can transmit and display the first concentration signal and the second concentration signal on the mobile terminal or the operation panel, so as to facilitate the staff to monitor, and to facilitate the staff to make corresponding countermeasures in time when the transport container 100 leaks.

[0133] In this embodiment, the sealing protection device of the uranium hexafluoride transport container may further include an anti-rotation member 7. The anti-rotation member 7 is arranged in the lower housing 12 and is used for locking or unlocking the position of the transport container 100 in the accommodating cavity 13 to prevent the transport container 100 from rotating along its own circumferential direction, so as to ensure the safety of the transport container 100 during transportation.

[0134] Figure 8This is a partial structural schematic diagram of the sealing and protecting device for the uranium hexafluoride transportation container in this embodiment. Figure 9 This is a structural schematic diagram of the anti-rotation member 7 in the locked state in this embodiment. Figure 10 This is a structural schematic diagram of the anti-rotation member 7 in the unlocked state in this embodiment.

[0135] Reference Figures 8 to 10 , in this embodiment, the anti-rotation member 7 includes an anti-rotation shaft 71. The anti-rotation shaft 71 can telescopically move relative to the lower housing 12, and the axis of the anti-rotation shaft 71 is perpendicular to the axis of the lower housing 12. Among them, an anti-rotation hole is correspondingly provided on the transportation container 100. The anti-rotation shaft 71 can telescopically move relative to the lower housing 12 to extend into or withdraw from the anti-rotation hole, thereby locking or unlocking the rotation of the transportation container 100 along its own circumferential direction. In this embodiment, the anti-rotation shaft 71 extends horizontally.

[0136] The anti-rotation member 7 further includes a mounting base 72, a receiving shell 73, and a handle 74. Among them, the mounting base 72 is fixedly connected to the bottom wall of the lower housing 12. The receiving shell 73 is inserted through the mounting base 72 and is rotatably connected to the mounting base 72. The receiving shell 73 is perpendicular to the axis of the lower housing 12. One end of the receiving shell 73 is open and forms a receiving groove. The anti-rotation shaft 71 is inserted through the receiving groove and is movably connected to the receiving shell 73, and can telescopically move relative to the receiving shell 73. The handle 74 is fixedly connected to the receiving shell 73 and is used for a staff member to hold and rotate to drive the receiving shell 73 to rotate, so that the receiving shell 73 rotates relative to the anti-rotation shaft 71, and further enables the anti-rotation shaft 71 to telescopically move along the receiving shell 73.

[0137] Among them, when the handle 74 drives the receiving shell 73 to rotate, so that the anti-rotation shaft 71 extends out of the receiving shell 73 until the receiving shell 73 can no longer rotate relative to the mounting base 72, that is, the anti-rotation member 7 reaches the locked state. Or, when the handle 74 drives the receiving shell 73 to rotate, so that the anti-rotation shaft 71 is completely received in the receiving shell 73, and the receiving shell 73 can no longer rotate relative to the mounting base 72, that is, the anti-rotation member 7 reaches the unlocked state.

[0138] In this embodiment, anti-rotation members 7 are respectively provided at the two transverse ends of the bottom wall of the lower housing 12, and can cooperate to limit the transportation container 100 to enhance the locking effect on the transportation container 100.

[0139] Reference Figure 8 , in this embodiment, the sealing and protecting device for the uranium hexafluoride transportation container may further include a buffer pad 81. The buffer pad 81 is provided on the bottom wall of the lower housing 12 and is used to contact the outer periphery of the transportation container 100 to buffer and protect the transportation container 100.

[0140] Reference Figure 1 and Figure 3, in this embodiment, the sealing and protecting device of the uranium hexafluoride transport container may further include a lifting lug 82 provided at the top of the upper housing 11. A lifting hole is provided on the lifting lug 82 for cooperating with a lifting tool to realize the lifting of the sealing and protecting device of the uranium hexafluoride transport container or the overall lifting of the sealing and protecting device of the uranium hexafluoride transport container and the transport container 100.

[0141] The sealing and protecting device of the uranium hexafluoride transport container may further include at least two saddle seats 83 provided at the bottom of the lower housing 12 at longitudinal intervals. The bottom of the saddle seat 83 extends horizontally, and the bottoms of the saddle seats 83 are flush with each other for contacting with a supporting surface to support the sealing and protecting device of the uranium hexafluoride transport container. Among them, the supporting surface can be any plane such as the ground.

[0142] , in this embodiment, a lifting lug 82 may also be provided on the outer side of the saddle seat 83. A lifting hole is provided on the lifting lug 82 for cooperating with a lifting tool to realize the lifting of the sealing and protecting device of the uranium hexafluoride transport container or the overall lifting of the sealing and protecting device of the uranium hexafluoride transport container and the transport container 100. In actual application, the lifting lug 82 located on the upper housing 11 can be selected to cooperate with the lifting tool to realize the lifting of the sealing and protecting device of the uranium hexafluoride transport container, or the lifting lug 82 located on the saddle seat 83 can be selected to cooperate with the lifting tool to realize the lifting of the sealing and protecting device of the uranium hexafluoride transport container, or the lifting lugs 82 located on the upper housing 11 and the saddle seat 83 can be selected to cooperate with the lifting tool to realize the lifting of the sealing and protecting device of the uranium hexafluoride transport container to ensure the stability of the sealing and protecting device of the uranium hexafluoride transport container during lifting.

[0143] , in this embodiment, two fork connectors 84 may also be provided at the bottom of the lower housing 12. The two fork connectors 84 are arranged at longitudinal intervals along the lower housing 12. One end of the fork connector 84 is open to form a fork groove 841. The fork grooves 841 of the two fork connectors 84 can cooperate with a forklift to realize the transfer of the sealing and protecting device of the uranium hexafluoride transport container. In addition, the setting of the lifting lug 82 and the locking groove in this embodiment enables the staff to select to use a lifting tool for hoisting or a forklift to realize the transfer of the sealing and protecting device of the uranium hexafluoride transport container according to needs.

[0144] In this embodiment, the sealing and protecting device for the uranium hexafluoride transport container may further include a nameplate 85, which contains information such as the serial number of the sealing and protecting device for the uranium hexafluoride transport container, the serial number of the transport container 100 within the sealing and protecting device for the uranium hexafluoride transport container, and the serial numbers of the first detector 61 and the second detector 62 within the sealing and protecting device for the uranium hexafluoride transport container. When transporting the transport container 100 of the uranium hexafluoride transport container, the staff can identify and bind the information contained in the nameplate 85 on the sealing and protecting device of the uranium hexafluoride transport container through devices such as mobile terminals, so as to facilitate understanding the situation of the transport container 100 within the sealing and protecting device of each uranium hexafluoride transport container, and help the staff accurately locate the leaking transport container 100 and make corresponding countermeasures in a timely manner.

[0145] As can be seen from the above technical solutions, the present utility model has at least the following advantages and positive effects:

[0146] By further packaging the transport container with the sealing and protecting device for the uranium hexafluoride transport container in this application, the impact and heat transfer caused by accidents such as dropping, impact, and fire on the transport container can be reduced, thereby ensuring the safety state of the transport container during the transportation of uranium hexafluoride.

[0147] Furthermore, when the upper shell is closed on the lower shell, the upper locking plates are inserted into the lower locking grooves one by one, and / or the lower locking plates are inserted into the upper locking grooves one by one, which can lock the upper shell and the lower shell, thereby strengthening the connection strength between the upper shell and the lower shell to meet the safety requirements for the transportation of uranium hexafluoride.

[0148] Although the present utility model has been described with reference to several typical embodiments, it should be understood that the terms used are illustrative and exemplary, rather than restrictive. Since the present utility model can be embodied in many forms without departing from the spirit or essence of the utility model, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be broadly interpreted within the spirit and scope defined by the appended claims. Therefore, all changes and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A sealing and protecting device for a uranium hexafluoride transport container, which is used to accommodate and protect the transport container, and is characterized in that, The sealing and protecting device of the uranium hexafluoride transportation container includes: A housing, which includes a detachable upper housing and a lower housing. The upper housing is covered on the lower housing, and the upper housing is hermetically connected to the lower housing. An upper cavity is formed inside the upper housing, and a lower cavity is formed inside the lower housing. The lower cavity communicates with the upper cavity and constitutes a receiving cavity for accommodating the transportation container. A locking assembly, which includes an upper locking seat and a lower locking seat. The upper locking seat is arranged on the outer periphery of the lower end of the upper housing, and the lower locking seat is arranged on the outer periphery of the upper end of the lower housing. The upper locking seat includes an upper locking plate, and the lower locking seat includes a lower locking groove corresponding to the upper locking plate, and / or the lower locking seat includes a lower locking plate, and the upper locking seat includes an upper locking groove corresponding to the lower locking plate. Wherein, when the upper housing is covered on the lower housing, the upper locking plates are respectively inserted into the lower locking grooves, and / or the lower locking plates are respectively inserted into the upper locking grooves.

2. The sealing and protecting device for the uranium hexafluoride transportation container according to claim 1, wherein The upper locking seat includes a seat body part and a plurality of the upper locking plates. The seat body part is fixed on the outer side of the lower end of the upper housing, and the plurality of upper locking plates are spaced apart on the seat body part. The upper locking plates extend downward beyond the bottom end face of the upper housing. The upper locking seat further includes a plurality of upper locking grooves, and the upper locking grooves are formed between adjacent two of the upper locking plates.

3. The sealing and protecting device for the uranium hexafluoride transportation container according to claim 1, wherein The lower locking seat includes a main body part and a plurality of the lower locking grooves. The main body part is fixed on the outer side of the upper end of the lower housing, and the plurality of lower locking grooves are spaced apart. The lower locking seat further includes a plurality of lower locking plates, and the lower locking grooves are formed between adjacent two of the lower locking plates. The lower locking plates extend upward beyond the top end face of the lower housing.

4. The sealing and protecting device for the uranium hexafluoride transportation container according to claim 1, characterized in that, The upper locking seat includes the upper locking plate and the upper locking groove, and a perforation is provided on the upper locking plate. The lower locking seat includes the lower locking plate and the lower locking groove, and a through hole is provided on the lower locking plate. When the upper locking plate is inserted into the lower locking groove and the lower locking plate is inserted into the upper locking groove, the perforation communicates with the through hole. The locking assembly further includes a locking member, and the locking member passes through the perforation and the through hole.

5. The sealing and protecting device for the uranium hexafluoride transportation container according to claim 4, characterized in that, The locking member includes a locking part and a limiting part. The locking part passes through the perforation and the through hole. The outer diameter of the limiting part is larger than the inner diameter of the perforation or the inner diameter of the through hole. The locking assembly further includes a locking piece, and the locking piece passes through the upper locking seat and extends into the limiting part to be detachably connected to the limiting part, or the locking piece passes through the lower locking seat and extends into the limiting part to be detachably connected to the limiting part.

6. The sealing and protecting device for the uranium hexafluoride transportation container according to claim 5, characterized in that, The locking piece is clamped with the limiting part. A clamping groove is provided on the limiting part, and the locking piece passes through the upper locking seat or the lower locking seat and extends into the clamping groove to be clamped with the limiting part.

7. The sealing and protecting device for the uranium hexafluoride transportation container according to claim 1, characterized in that, A limiting groove is provided on the bottom end face of the upper housing, and a limiting platform protrudes from the top end face of the lower housing. When the upper housing is covered on the lower housing, the limiting platform is received and limited in the limiting groove, and the outer periphery of the limiting platform is attached to the inner peripheral wall of the limiting groove. A sealing gasket is provided between the top end face of the lower housing and the bottom end face of the upper housing.

8. The sealing and protecting device for the uranium hexafluoride transportation container according to claim 1, characterized in that, The sealing and protecting device of the uranium hexafluoride transport container further includes a valve protection cover. One end of the valve protection cover is open to form a protection cavity for accommodating the valve of the transport container, and the open end of the valve protection cover is fixedly connected to the outer wall of the transport container.

9. The sealing and protecting device for the uranium hexafluoride transportation container according to claim 8, characterized in that, The sealing and protecting device of the uranium hexafluoride transport container further includes a valve protector, which is arranged in the lower shell body and at the axial end of the lower shell body; The valve protector is provided with a receiving groove for accommodating the valve protection cover, and the valve protector is used for supporting the valve protection cover.

10. The sealing and protecting device for the uranium hexafluoride transportation container according to claim 8, characterized in that, The valve protection cover is provided with a first detector for detecting the first concentration signal in the protection cavity.

11. The sealing and protecting device for the uranium hexafluoride transportation container according to claim 1, characterized in that, The sealing and protecting device of the uranium hexafluoride transport container further includes an anti-rotation member, which is arranged in the lower shell body. The anti-rotation member includes an anti-rotation shaft that can expand and contract relative to the lower shell body, and the axis of the anti-rotation shaft is perpendicular to the axis of the lower shell body; The transport container is correspondingly provided with an anti-rotation hole, and the anti-rotation shaft can extend into or withdraw from the anti-rotation hole to lock or unlock the rotation of the transport container along its own circumferential direction.

12. The sealing and protecting device for the uranium hexafluoride transportation container according to claim 1, wherein, The sealing and protecting device of the uranium hexafluoride transport container further includes a buffer pad, which is arranged on the bottom wall of the lower shell body for buffering and protecting the transport container; A second detector is arranged in the receiving cavity for detecting the second concentration signal in the receiving cavity.

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