A test vacuum insulated container

Abstract

The application provides a vacuum adiabatic container for test, comprising an outer container and an inner container arranged inside the outer container, a vacuum adiabatic cavity being arranged between the outer container and the inner container; a detachable radial support structure is arranged between the inner container and the outer container in a radial direction, and when the radial support structure is detached, the inner container can be taken out of the outer container to replace a structure to be tested. The application enables the inner container and the outer container to be repeatedly disassembled, can meet the requirement of studying the adiabatic performance of different adiabatic structures / support structures at the working temperature of a cryogenic medium, provides data support for improving the adiabatic effect of the vacuum adiabatic container, reducing the evaporation rate and prolonging the service time of the container, realizes the repeated use of the test equipment and reduces the test cost.

Description

Technical Field

[0001] This invention belongs to the field of cryogenic medium storage technology, and more specifically, relates to a vacuum insulated container for testing. Background Technology

[0002] With the development of science and technology, more and more industries are using cryogenic media such as liquid hydrogen, liquid oxygen, and liquid nitrogen. Cryogenic media storage generally employs vacuum-insulated containers, but how to improve the insulation effect of vacuum-insulated containers, reduce the evaporation rate, and increase the container's lifespan are key aspects of research in this field.

[0003] In view of this, the present invention is hereby proposed. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome at least some of the shortcomings of the prior art and provide a test vacuum insulation container. By setting a detachable radial support structure in the radial direction between the inner container and the outer container, the inner container and the outer container can be repeatedly disassembled and assembled. This can meet the needs of studying the insulation performance of different insulation structures / support structures at the working temperature of the cryogenic medium, provide data support for improving the insulation effect of the vacuum insulation container, reducing the evaporation rate, and increasing the container's maintenance time, realize the reuse of the test equipment, and reduce the test cost.

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is as follows:

[0006] A test vacuum insulated container includes an outer container and an inner container disposed inside the outer container, wherein the outer container and the inner container are in a vacuum insulated cavity.

[0007] A detachable radial support structure is provided between the inner container and the outer container in the radial direction. When the radial support structure is removed, the inner container can be taken out from the outer container to replace the structure to be tested.

[0008] In some embodiments, the radial support structure includes at least two fixed-end support structures disposed in the circumferential direction between the inner container and the outer container;

[0009] At least two fixed end mounting ports are provided on the side wall of the outer container, corresponding to the at least two fixed end support structures, and penetrating the side wall of the outer container.

[0010] The fixed-end support structure includes:

[0011] A first sleeve at the fixed end is fixedly connected to the mounting port at the fixed end, and the first end of the first sleeve at the fixed end is located outside the outer container, while the second end of the first sleeve at the fixed end is located inside the outer container.

[0012] The second sleeve at the fixed end is fixedly connected to the outer wall of the inner container; and

[0013] A fixed-end heat insulation support structure is detachably fixedly connected to the first fixed-end sleeve and the second fixed-end sleeve, and is configured to be pulled out through the first end of the first fixed-end sleeve to separate from the second fixed-end sleeve.

[0014] In some embodiments, the fixed-end thermal insulation support structure includes:

[0015] A fixed-end heat-insulating support member is sleeved in the second sleeve at the fixed end, with one end abutting against the outer wall of the inner container; and

[0016] A fixed-end seal is fitted inside the first sleeve of the fixed end, with one end abutting against the heat insulation support and the other end detachably connected to the first end of the first sleeve of the fixed end.

[0017] In some embodiments, the thermal insulation support structure further includes:

[0018] The fixed end cap is detachably and fixedly connected to the first end of the first sleeve of the fixed end.

[0019] In some embodiments, the radial support structure includes at least two sliding end support structures disposed in the circumferential direction between the inner container and the outer container;

[0020] At least two sliding end mounting ports are provided on the side wall of the outer container, corresponding to the at least two sliding end support structures, and penetrating the side wall of the outer container.

[0021] The sliding end support structure includes:

[0022] A sliding end sleeve is fixedly connected to the sliding end mounting port, with the first end of the sliding end sleeve located outside the outer container and the second end of the sliding end sleeve located inside the outer container; and

[0023] The sliding end heat insulation support structure has one end in contact with the outer wall of the inner container and the other end detachably fixedly connected to the sliding end sleeve.

[0024] In some embodiments, the sliding end thermal insulation support structure includes:

[0025] The sliding end heat-insulating support member has one end in contact with the outer wall of the inner container; and

[0026] A sliding end seal is fitted inside the sliding end sleeve, with one end abutting against the sliding end heat insulation support and the other end detachably connected to the first end of the sliding end sleeve.

[0027] In some embodiments, the thermal insulation support structure further includes:

[0028] The sliding end cap is detachably and fixedly connected to the first end of the sliding end sleeve.

[0029] In some embodiments, the outer container includes:

[0030] An outer cylinder is fitted onto the outside of the inner container, and a saddle is provided on the outside of the outer cylinder;

[0031] The outer end cap is detachably connected to one end of the outer cylinder;

[0032] An outer base is fixedly connected to the other end of the outer cylinder, and a sliding support seat along the axial direction is provided between the outer base and the inner container.

[0033] In some embodiments, an outer container operating handle is provided on the outer side of the outer cap, and an inner container operating handle is provided on the outer side of the inner container pair.

[0034] In some embodiments, the inner container is fixedly connected to an inner pipe for supplying / discharging a cryogenic medium into the inner container, and the outer end is provided with a pipe mounting port, with one end of the inner pipe passing through the pipe mounting port and located on the outside of the outer end.

[0035] The inner tube is fitted with an outer tube on the outer side of the outer end cap. One end of the outer tube is fixedly connected to the tube installation port, and the other end is fixedly connected to the outer wall of the inner tube.

[0036] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art.

[0037] 1. The experimental vacuum insulated container provided by the present invention, by setting a detachable radial support structure in the radial direction between the inner container and the outer container, allows the inner container and the outer container to be repeatedly disassembled and assembled. This can meet the needs of studying the insulation performance of different insulation structures at the working temperature of the cryogenic medium, provide data support for improving the insulation effect of the vacuum insulated container, reducing the evaporation rate, and increasing the container's maintenance time, realize the reuse of the testing equipment, and reduce testing costs.

[0038] 2. The experimental vacuum insulated container provided by the present invention, by setting a detachable thermal insulation support structure in the radial support structure, can not only meet the requirements of assembling and disassembling the inner container and the outer container, but also meet the needs of studying the thermal insulation performance of different support structures at the working temperature of the cryogenic medium, and provide data support for improving the thermal insulation effect of the vacuum insulated container, reducing the evaporation rate, and increasing the maintenance time of the container.

[0039] 3. The experimental vacuum insulation container provided by the present invention, by setting one of the end caps of the outer container as a supporting base structure and setting a saddle on the outer container, enables the experimental vacuum insulation container to meet the testing requirements of both horizontal and vertical structures, thus expanding the application scenarios of the experimental vacuum insulation container.

[0040] 4. The experimental vacuum insulated container provided by the present invention has a connecting pipe that communicates with the inner container set on the outer end cap of the outer container. This allows the outer end cap to be separated from the outer cylinder after the connecting pipe is cut off, making it easy to remove the inner container as a whole from the outer container. After the inner container is put back into the outer container, the connecting pipe is welded back on, without affecting the testing process of the experimental vacuum insulated container.

[0041] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0042] The accompanying drawings, as part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention, but do not constitute an undue limitation of the invention. Obviously, the drawings described below are merely some embodiments, and those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0043] Figure 1 This is a schematic diagram of the structure of a test vacuum insulation container provided according to an exemplary embodiment of the present invention;

[0044] Figure 2 yes Figure 1 Schematic diagram of the AA-direction cross-section structure;

[0045] Figure 3 yes Figure 2 A magnified schematic diagram of the structure at point B in the diagram;

[0046] Figure 4 yes Figure 1 Schematic diagram of the CC-direction cross-section structure in the middle;

[0047] Figure 5 yes Figure 4 A magnified schematic diagram of the structure at point D in the diagram;

[0048] Figure 6 This is a schematic diagram of the pipe cutting and welding structure provided according to an exemplary embodiment of the present invention.

[0049] In the diagram: 100, Experimental vacuum insulated container;

[0050] 10. Outer container; 11. Outer cylinder; 12. Outer end cap; 13. Outer base; 14. Saddle; 15. Fixed end mounting port; 16. Sliding end mounting port; 17. Outer container operating handle;

[0051] 20. Inner container; 21. Inner container operating handle;

[0052] 30. Fixed end support structure; 31. Fixed end first sleeve; 32. Fixed end second sleeve; 33. Fixed end heat insulation support structure; 331. Fixed end heat insulation support component; 332. Fixed end sealing component; 34. Fixed end gland;

[0053] 40. Sliding end support structure; 41. Sliding end sleeve; 42. Sliding end heat insulation support structure; 421. Sliding end heat insulation support component; 422. Sliding end seal; 43. Sliding end gland;

[0054] 50. Sliding support seat;

[0055] 60. Thermal insulation structure; 61. Thermal insulation layer; 62. Adsorbent;

[0056] 70. Vacuum insulation cavity; 71. Getter;

[0057] 80. Pipeline assembly; 81. External pipe; 82. Internal pipe.

[0058] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the invention in any way, but rather to illustrate the concept of the invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0059] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0060] In the description of this invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0061] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0062] Figure 1 The structure of a test vacuum insulated container 100 according to an exemplary embodiment of the present invention is shown. The test vacuum insulated container 100 can be used to test the insulation structure 60 and / or support structure in a vacuum insulated container 100 storing cryogenic media, to determine the performance of different insulation materials, the insulation effect of different insulation structures 60, and the impact of different support forms or support materials on the working performance of the vacuum insulated container 100, providing data support for improving the insulation effect of the vacuum insulated container 100, reducing the evaporation rate, and increasing the container's holding time. However, it is understood that the test vacuum insulated container 100 can also be used to store cryogenic media. The cryogenic media in the test vacuum insulated container 100 may be, for example, liquid hydrogen, liquid oxygen, and liquid nitrogen.

[0063] like Figure 1 As shown, the test vacuum insulated container 100 includes an outer container 10 and an inner container 20 disposed inside the outer container 10. A vacuum insulated cavity 70 is formed between the outer container 10 and the inner container 20 to keep the inner container 20 in a vacuum environment, reducing heat leakage. A detachable radial support structure is provided between the inner container 20 and the outer container 10 in the radial direction. After one test is completed and before another test is conducted, the radial support structure can be disassembled to release the fixed connection between the inner container 20 and the outer container 10. The inner container 20 can then be removed from the outer container 10 to replace the structure under test. This allows for continued testing of the structure under test, enabling the reuse of the testing equipment and reducing testing costs. The structure under test can be, for example, an insulation structure 60 wrapped around the outer wall of the inner container 20, or the insulation material in the radial support structure.

[0064] It should be noted that the inner container 20 or the outer container 10 is also provided with a pipe assembly 80 and instruments and other equipment. These devices can be set as needed, and will not be described in detail here.

[0065] As an example, the insulation structure 60 wrapped around the outer wall of the inner container 20 may include an insulation layer 61 composed of various insulation materials. The influence of factors such as the type and thickness of different insulation materials on the insulation performance can be tested using the experimental vacuum insulation container 100 provided by this invention. Furthermore, the insulation structure 60 also includes an adsorbent 62, which is disposed between the insulation layer 61 and the outer wall of the inner container 20, or between different insulation materials. The type and thickness of the adsorbent 62 can also be used as variables in the test. In addition, a getter 71 may be provided in the vacuum insulation cavity 70 for adsorbing vaporized flash vapor.

[0066] In some embodiments, the outer container 10 includes an outer cylinder 11, an outer end cap 12, and an outer base 13. The outer cylinder 11 is sleeved on the outside of the inner container 20, and a saddle 14 is provided on the outer side of the outer cylinder 11. The outer end cap 12 is detachably connected to one end of the outer cylinder 11, and the outer base 13 is fixedly connected to the other end of the outer cylinder 11. A sliding support 50 along the axial direction is provided between the outer base 13 and the inner container 20.

[0067] The above solution enables the test vacuum insulation container 100 to meet the testing requirements of both horizontal and vertical structures, thus expanding the application scenarios of the test vacuum insulation container 100.

[0068] When the experimental vacuum insulated container 100 is used in a horizontal configuration, the saddle 14 provides external support for the container 100, and the radial support structure provides internal support for the inner container 20. When the experimental vacuum insulated container 100 is used in a vertical configuration, the outer base 13 provides external support for the container 100. In addition to the radial support structure providing radial internal support for the inner container 20, the sliding support 50 also provides axial internal support for the inner container 20. Furthermore, the sliding support 50 can also cause the inner container 20 to contract along the axial direction when thermal stress occurs due to the cooling contraction of the metal material, thus alleviating thermal stress and improving the stability of the inner container 20.

[0069] As an example, the sliding support 50 includes an inner support tube connected to the inner container 20 and an outer support tube connected to the outer container 10. One end of the outer support tube is welded to the inner side of the outer base 13 of the outer container 10, and one end of the inner support tube is welded to the end cap of the inner container 20. The other end is sleeved outside or inside the outer support tube, and slides with the outer support tube for limitation. Moreover, this arrangement also facilitates the release of the restriction of the outer container 10 on the inner container 20 at the outer base 13 when the inner container 20 is removed from the outer container 10. The inner and outer support tubes can be made of fiberglass material with a relatively low thermal conductivity.

[0070] In some embodiments, the connecting pipe assembly 80 includes, for example, an inner connecting pipe 82 for supplying / discharging a cryogenic medium into the inner container 20. The outer end cap 12 has a connecting pipe mounting port. One end of the inner connecting pipe 82 passes through the mounting port and is located outside the outer end cap 12. An outer connecting pipe 81 is fitted onto the portion of the inner connecting pipe 82 located outside the outer end cap 12. One end of the outer connecting pipe 81 is fixedly connected to the mounting port, and the other end is fixedly connected to the outer wall of the inner connecting pipe 82. A vacuum insulation environment exists between the inner connecting pipe 82 and the outer connecting pipe 81 to reduce heat leakage from the inner connecting pipe 82.

[0071] When it is necessary to replace the structure to be tested, the outer tube 81 and inner tube 82 located outside the outer container 10 are cut into two parts at a preset position. The radial support structure is disassembled, and the outer cylinder 11 and outer end cap 12 are disassembled. When the outer end cap 12 is removed, the portion of the outer tube 81 remaining on the outer end cap 12 after cutting is also removed. The portion of the inner tube 82 remaining on the inner container 20 after cutting can be removed from the outer cylinder 11 along with the inner container 20. This achieves the separation of the inner container 20 from the outer container 10. (Refer to...) Figure 6 As shown.

[0072] Furthermore, an outer container operation handle 17 is provided on the outer side of the outer cap 12, and an inner container operation handle 21 is provided on the outer side of the inner container 20, so as to facilitate the operator to operate the outer cap 12 and the inner container 20.

[0073] As an example, the outer head 12 and the outer cylinder 11 can be connected by a flange.

[0074] After replacing the structure to be tested, place the inner container 20 into the space formed by the outer cylinder 11 and the outer base 13, connect the outer end cap 12 to the outer cylinder 11, reconnect the radial support structure, and connect the required instrument components. Then weld the disconnected inner pipe 82 together, while the disconnected outer pipe 81 is welded together using a fixing plate, as shown in the reference. Figure 6 As shown, this creates a closed space between the inner container 20 and the outer container 10. Connecting a vacuum unit re-evacuates the closed space to the required vacuum level, making it a vacuum-insulated cavity 70, which can then be used for the next test or to store cryogenic media.

[0075] It should be noted that the outer pipe 81 and the inner pipe 82 can undergo multiple cutting-welding processes, as shown in the reference. Figure 6 As shown.

[0076] In some implementations, such as Figure 1As shown, the radial support structure includes at least two fixed-end support structures 30 and at least two sliding-end support structures 40 disposed in the circumferential direction between the inner container 20 and the outer container 10; at least two fixed-end mounting ports 15 are provided on the side wall of the outer container 10 corresponding to the at least two fixed-end support structures 30 and penetrating the side wall of the outer container 10; at least two sliding-end mounting ports 16 are provided on the side wall of the outer container 10 corresponding to the at least two sliding-end support structures 40 and penetrating the side wall of the outer container 10.

[0077] When the inner container 20 experiences thermal stress due to the contraction of the metal material upon cooling, it can contract relative to the sliding end support structure 40 towards the fixed end support structure 30. In other words, when the inner container 20 is filled with a low-temperature medium, it will contract axially towards the fixed end support structure 30, using the fixed end support structure 30 as a fixed point.

[0078] As an example, refer to Figure 2 and Figure 4 Four fixed-end support structures 30 and four sliding-end support structures 40 are evenly arranged along the circumferential direction.

[0079] The following reference Figure 3 A detailed description of the fixed-end support structure 30 is provided.

[0080] like Figure 3 As shown, the fixed-end support structure 30 includes a fixed-end first sleeve 31, a fixed-end second sleeve 32, and a fixed-end heat insulation support structure 33. The fixed-end first sleeve 31 is fixedly welded to the fixed-end mounting port 15, and the first end of the fixed-end first sleeve 31 is located outside the outer container 10, while the second end of the fixed-end first sleeve 31 is located inside the outer container 10. The fixed-end second sleeve 32 is fixedly welded to the outer wall of the inner container 20. The fixed-end heat insulation support structure 33 is detachably fixedly connected to the fixed-end first sleeve 31 and the fixed-end second sleeve 32, and is configured to be pulled out through the first end of the fixed-end first sleeve 31 to separate from the fixed-end second sleeve 32.

[0081] In the above scheme, the first fixed end sleeve 31 and the second fixed end sleeve 32 are welded to the outer container 10 and the inner container 20, respectively. The fixed end heat insulation support structure 33 is detachably fixed to the first fixed end sleeve 31 and the second fixed end sleeve 32. When it is necessary to disassemble the fixed end support structure 30, the fixed connection between the fixed end heat insulation support structure 33 and the first fixed end sleeve 31 and the second fixed end sleeve 32 is released, so that the fixed end heat insulation support structure 33 can be pulled out to the outside of the outer container 10 through the first end of the first fixed end sleeve 31, or at least pulled out to separate from the second fixed end sleeve 32. In this way, the restriction of the outer container 10 on the inner container 20 can be released, making it easier for the inner container 20 to be taken out of the outer container 10.

[0082] In addition, by providing a fixed-end heat insulation support structure 33 between the fixed-end first sleeve 31 and the fixed-end second sleeve 32, the inner container 20 and the outer container 10 can also be thermally isolated at this point, reducing heat leakage of the inner container 20.

[0083] To improve the strength of the inner container 20, a reinforcing plate is provided on the outside of the inner container 20, and the second sleeve 32 at the fixed end is welded to the reinforcing plate.

[0084] In some embodiments, the fixed-end heat insulation support structure 33 includes a fixed-end heat insulation support member 331 and a fixed-end sealing member 332. The fixed-end heat insulation support member 331 is sleeved in the fixed-end second sleeve 32, with one end abutting against the outer wall of the inner container 20. The fixed-end sealing member 332 is sleeved in the fixed-end first sleeve 31, with one end abutting against the heat insulation support member and the other end detachably connected to the first end of the fixed-end first sleeve 31.

[0085] To further improve the sealing performance, a sealing ring is also provided between the fixed end seal 332 and the fixed end first sleeve 31.

[0086] The fixed-end thermal insulation support 331 and the fixed-end sealing component 332 can be made of fiberglass material with a relatively low thermal conductivity.

[0087] In some embodiments, the thermal insulation support structure further includes a fixed end cap 34, which is detachably fixedly connected to the first end of the fixed end first sleeve 31.

[0088] Specifically, the fixed end cap 34 is threadedly connected to the first end of the fixed end first sleeve 31 to limit the fixed end seal 332. In addition, to improve the limiting effect of the fixed end cap 34 on the fixed end seal 332, a screw can be provided on the fixed end cap 34. When the fixed end cap 34 is threadedly connected to the first end of the fixed end first sleeve 31, the screw can be inserted into the fixed end seal 332.

[0089] The following reference Figure 5 The sliding end support structure 40 is described in detail.

[0090] like Figure 5 As shown, the sliding end support structure 40 includes a sliding end sleeve 41 and a sliding end heat insulation support structure 42. The sliding end sleeve 41 is fixedly connected to the sliding end mounting port 16, and the first end of the sliding end sleeve 41 is located outside the outer container 10, while the second end of the sliding end sleeve 41 is located inside the outer container 10. One end of the sliding end heat insulation support structure 42 abuts against the outer wall of the inner container 20, and the other end is detachably fixedly connected to the sliding end sleeve 41.

[0091] In the above scheme, the sliding end sleeve 41 is welded to the outer container 10, and the sliding end sleeve 41 restricts one end of the sliding end heat insulation support structure 42, while the inner container 20 does not restrict one end of the sliding end heat insulation support structure 42, allowing the inner container 20 to slide relative to the sliding end support structure 40 to reduce thermal stress. When it is necessary to disassemble the sliding end support structure 40, the fixed connection between the sliding end heat insulation support structure 42 and the sliding end sleeve 41 is released, allowing the sliding end heat insulation support structure 42 to be pulled out to the outside of the outer container 10 through the first end of the sliding end sleeve 41, or at least pulled out to separate from the inner container 20. This removes the restriction of the outer container 10 on the inner container 20 at this point, making it easier for the inner container 20 to be removed from the outer container 10.

[0092] To improve the strength of the inner container 20, a reinforcing plate is provided on the outside of the inner container 20, and the sliding end heat insulation support structure 42 abuts against the reinforcing plate.

[0093] In some embodiments, the sliding end heat insulation support structure 42 includes a sliding end heat insulation support member 421 and a sliding end seal member 422. One end of the sliding end heat insulation support member 421 abuts against the outer wall of the inner container 20; the sliding end seal member 422 is sleeved in the sliding end sleeve 41, with one end abutting against the sliding end heat insulation support member 421 and the other end detachably connected to the first end of the sliding end sleeve 41.

[0094] The sliding end heat insulation support 421 and the sliding end seal 422 can be made of fiberglass material with a relatively low thermal conductivity.

[0095] In some embodiments, the thermal insulation support structure further includes a sliding end cap 43, which is detachably fixedly connected to the first end of the sliding end sleeve 41.

[0096] Specifically, the sliding end cap 43 is threaded to the first end of the sliding end sleeve 41 to limit the sliding end seal 422.

[0097] It should be noted that when the experimental vacuum insulated container 100 is used in a horizontal scenario, the inner container 20 is filled with a cryogenic medium. Under the influence of the temperature difference, the inner container 20 contracts. At this time, only the two fixed-end support structures 30 and the two sliding-end support structures 40 located below the plane of the central axis provide support. For the two fixed-end support structures 30 and the two sliding-end support structures 40 located above the plane of the central axis, due to the radial contraction of the inner container 20, gaps are formed between the fixed-end thermal insulation support 331 and the sliding-end thermal insulation support 421 and the inner container 20, causing the fixed-end thermal insulation support 331 and the sliding-end thermal insulation support 421 to detach from the inner container 20. This cuts off the heat transfer path from the fixed-end thermal insulation support 331 and the sliding-end thermal insulation support 421 to the outside, thus reducing heat leakage. Furthermore, the inner support tube on the inner container 20 and the outer support tube on the outer base 13 also lose contact with the inner container 20 due to the axial contraction of the inner container 20 towards the fixed-end support structure 30, further reducing heat leakage.

[0098] When the experimental vacuum insulated container 100 is used in a vertical setting, initially, the sliding support seat 50, which consists of the inner support tube on the inner container 20 and the outer support tube on the outer base 13, provides axial support to the inner container 20. When the inner container 20 is filled with a cryogenic medium, under the action of temperature difference, the inner container 20 contracts toward the fixed end support structure 30. All four fixed end support structures 30 and four sliding end support structures 40 bear the weight of the inner container 20. At this time, because the inner container 20 contracts toward the fixed end support structure 30, the inner support tube on the inner container 20 is disengaged from the outer support tube on the outer base 13, reducing heat leakage.

[0099] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A test vacuum insulated container, comprising an outer container and an inner container disposed inside the outer container, wherein the outer container and the inner container form a vacuum insulated cavity; Its features are, The outer container includes an outer cylinder sleeved on the outside of the inner container and an outer end cap detachably connected to one end of the outer cylinder; The inner container is fixedly connected to an inner pipe for supplying / discharging a low-temperature medium into the inner container, and the outer end is provided with a pipe mounting port, with one end of the inner pipe passing through the pipe mounting port and located on the outside of the outer end. The inner tube is fitted with an outer tube on the outer side of the outer end cap. One end of the outer tube is fixedly connected to the tube installation port, and the other end is fixedly connected to the outer side wall of the inner tube. A detachable radial support structure is provided between the inner container and the outer container in the radial direction. When it is necessary to replace the test structure, the outer tube and the inner tube located outside the outer container are cut into two parts at a preset position, the radial support structure is disassembled, and the inner container can be taken out from the outer container to replace the test structure. The radial support structure includes at least two fixed-end support structures disposed in the circumferential direction between the inner container and the outer container; At least two fixed end mounting ports are provided on the side wall of the outer container, corresponding to the at least two fixed end support structures, and penetrating the side wall of the outer container. The fixed-end support structure includes: A first sleeve at the fixed end is fixedly connected to the mounting port at the fixed end, and the first end of the first sleeve at the fixed end is located outside the outer container, while the second end of the first sleeve at the fixed end is located inside the outer container. The second sleeve at the fixed end is fixedly connected to the outer wall of the inner container; and A fixed-end heat insulation support structure is detachably fixedly connected to the first fixed-end sleeve and the second fixed-end sleeve, and is configured to be pulled out through the first end of the first fixed-end sleeve to separate from the second fixed-end sleeve. The fixed-end thermal insulation support structure includes: A fixed-end heat insulation support is sleeved in the second fixed-end sleeve, with one end abutting against the outer wall of the inner container and the other end extending into the first fixed-end sleeve; A fixed-end sealing element is fitted into the first sleeve of the fixed end, with one end abutting against the heat insulation support element and the other end detachably connected to the first end of the first sleeve of the fixed end. The fixed end cap is detachably and fixedly connected to the first end of the first sleeve of the fixed end.

2. The experimental vacuum insulated container according to claim 1, characterized in that, The radial support structure further includes at least two sliding end support structures disposed in the circumferential direction between the inner container and the outer container; At least two sliding end mounting ports are provided on the side wall of the outer container, corresponding to the at least two sliding end support structures, and penetrating the side wall of the outer container. The sliding end support structure includes: A sliding end sleeve is fixedly connected to the sliding end mounting port, with the first end of the sliding end sleeve located outside the outer container and the second end of the sliding end sleeve located inside the outer container; and The sliding end heat insulation support structure has one end in contact with the outer wall of the inner container and the other end detachably fixedly connected to the sliding end sleeve.

3. The experimental vacuum insulated container according to claim 2, characterized in that, The sliding end heat insulation support structure includes: A sliding end heat-insulating support member, one end of which abuts against the outer wall of the inner container, and the other end extending into the sliding end sleeve; and A sliding end seal is fitted inside the sliding end sleeve, with one end abutting against the sliding end heat insulation support and the other end detachably connected to the first end of the sliding end sleeve.

4. The experimental vacuum insulated container according to claim 3, characterized in that, The thermal insulation support structure also includes: The sliding end cap is detachably and fixedly connected to the first end of the sliding end sleeve.

5. The experimental vacuum insulated container according to any one of claims 1 to 4, characterized in that, A saddle is provided on the outer side of the outer cylinder; The outer container further includes: An outer base is fixedly connected to the other end of the outer cylinder, and a sliding support seat along the axial direction is provided between the outer base and the inner container.

6. The experimental vacuum insulated container according to any one of claims 1 to 4, characterized in that, An outer container operating handle is provided on the outer side of the outer cap, and an inner container operating handle is provided on the outer side of the inner container.

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