Hydrogen storage container

Abstract

The invention provides a hydrogen storage container which comprises a first barrel assembly, a second barrel assembly and a hydrogen storage device. A vacuum cavity is formed in the second barrel assembly, the first barrel assembly is arranged in the vacuum cavity, and a gap is formed between the second barrel assembly and the first barrel assembly; one end of the first connecting assembly is hinged to the first barrel assembly, and the other end of the first connecting assembly is hinged to the second barrel assembly; one end of the second connecting assembly is hinged to the first barrel assembly, and the other end of the second connecting assembly is slidably hinged to the second barrel assembly; the first connecting assembly and the second connecting assembly are arranged at intervals in the axial direction of the first barrel assembly. The hydrogen storage container has a good heat insulation effect and relatively high structural stability, and is beneficial to reducing the occurrence probability of leakage accidents and improving the safety of hydrogen storage and transportation.

Description

Technical Field

[0001] The present disclosure relates to the technical field of hydrogen liquefaction storage, and in particular to a hydrogen storage container. Background Art

[0002] As energy demand continues to grow, the application of renewable energy has become increasingly important. As a clean, efficient and renewable energy source, hydrogen energy will have a brighter and brighter development prospect, which also puts forward higher requirements for hydrogen storage technology. At present, low-temperature liquid hydrogen storage has great advantages in the transportation and storage of hydrogen energy due to its high storage density. However, in the actual storage and transportation process, leakage or accidents are sometimes prone to occur, which is not conducive to further controlling the storage and transportation costs of hydrogen energy, and has brought restrictions to the actual application of hydrogen energy. Summary of the invention

[0003] The present disclosure aims to solve at least one of the technical problems existing in the prior art or related art.

[0004] In view of this, according to an embodiment of the present disclosure, a hydrogen storage container is proposed, comprising:

[0005] A first cylinder assembly is formed with a hydrogen storage cavity;

[0006] The second barrel assembly forms a vacuum chamber, the first barrel assembly is disposed in the vacuum chamber, and a gap is formed between the second barrel assembly and the first barrel assembly;

[0007] A first connecting assembly, one end of which is hinged to the first barrel assembly, and the other end of which is hinged to the second barrel assembly;

[0008] A second connecting assembly, one end of which is hinged to the first barrel assembly, and the other end of which is slidably hinged to the second barrel assembly;

[0009] Wherein, along the axial direction of the first cylinder assembly, the first connecting assembly and the second connecting assembly are arranged at intervals.

[0010] In a feasible embodiment, the first connecting assembly includes at least two first connecting rod portions, the at least two first connecting rod portions are arranged at intervals along the circumference of the first cylinder assembly, one end of the first connecting rod portion is hinged to the first cylinder assembly, and the other end is hinged to the second cylinder assembly;

[0011] The second connecting assembly includes at least two second connecting rod parts, which are arranged at intervals along the circumference of the first barrel assembly. One end of the second connecting rod part is hinged to the first barrel assembly, and the other end is slidably hinged to the second barrel assembly.

[0012] In a feasible implementation manner, the first connecting rod portion includes:

[0013] Two first lifting ears, one of which is arranged on the first barrel assembly, and the other is arranged on the second barrel assembly;

[0014] A first connecting rod, one end of which is hinged to one of the two first lifting ears, and the other end of which is hinged to the other of the two first lifting ears;

[0015] The first heat-insulating lining is arranged between the first connecting rod and the first lifting ear.

[0016] In a feasible implementation manner, the second connecting rod portion includes:

[0017] Two second lifting ears, one of which is disposed on the first barrel assembly, and the other is disposed on the second barrel assembly;

[0018] A second connecting rod, one end of the first connecting rod is hinged to one of the two second lifting ears provided on the first barrel assembly, and the other end of the first connecting rod is slidably hinged to one of the two second lifting ears provided on the second barrel assembly;

[0019] The second heat-insulating lining plate is arranged between the second connecting rod and the second lifting ear.

[0020] In a feasible embodiment, the first cylinder assembly includes:

[0021] A first cylinder body;

[0022] A first end cap, two ends of the first cylinder body in the axial direction are respectively connected with a first end cap, and the first end cap and the first cylinder body form a hydrogen storage cavity;

[0023] Axle ears, each first head is provided with an axle ear, and the first connecting component and the second connecting component are respectively hinged to different axle ears.

[0024] In a feasible implementation manner, the first cylinder assembly further includes:

[0025] The first reinforcement ring is arranged on the first cylinder body.

[0026] In a feasible implementation manner, the first cylinder assembly further includes:

[0027] A vacuum insulation panel is covered on the first cylinder body and the first end cover, and the vacuum insulation panel is located outside the hydrogen storage cavity;

[0028] The reflective insulation layer is covered on the vacuum insulation panel. The reflective insulation layer is located between the vacuum insulation panel and the second cylinder assembly. A gap is formed between the reflective insulation layer and the second cylinder assembly.

[0029] In a feasible implementation manner, the diameter of the shaft ear is less than or equal to 400 mm.

[0030] In a feasible embodiment, the second cylinder assembly includes:

[0031] A second cylinder body, wherein the first connecting assembly and the second connecting assembly are both hinged to the inner peripheral wall of the second cylinder body;

[0032] A second end cap is connected to each of the two ends of the second cylinder body in the axial direction, and the second end cap and the second cylinder body form a vacuum chamber;

[0033] The support portion is arranged on the inner peripheral wall of the second cylinder body, and the first cylinder assembly abuts against the support portion.

[0034] In a feasible implementation manner, the second cylinder assembly further includes:

[0035] The second reinforcement ring is arranged on the cylinder body.

[0036] In a feasible implementation manner, the hydrogen storage container further comprises:

[0037] A first connecting pipe is passed through the second end cap, one end of the first connecting pipe is connected to the hydrogen storage chamber, and a portion of the first connecting pipe located in the vacuum chamber has a plurality of bending portions;

[0038] A second connecting pipe is provided through the first cylinder assembly and the second cylinder body, and a portion of the second connecting pipe is located outside the second cylinder body;

[0039] The bellows is sleeved on the portion of the second connecting pipe located outside the second cylinder body.

[0040] Compared with the prior art, the present disclosure at least includes the following beneficial effects: the hydrogen storage container provided by the embodiment of the present disclosure includes a first barrel assembly, a second barrel assembly, a first connecting assembly and a second connecting assembly, wherein the first barrel assembly forms a hydrogen storage chamber, and in practical applications, the first barrel assembly can use the hydrogen storage chamber to store liquid hydrogen; the second barrel assembly forms a vacuum chamber, in which the aforementioned first barrel assembly is arranged, and a gap is formed between the first barrel assembly and the second barrel assembly, so that the outer wall of the first barrel assembly and the inner wall of the second barrel assembly can be separated from each other, so that the first barrel assembly can be wrapped by the vacuum area, and then through the vacuum insulation method, the heat exchange between the external environment and the first barrel assembly is hindered, and the first barrel assembly and the liquid hydrogen inside the first barrel assembly are prevented from undergoing a large temperature change during storage or transportation, and the shrinkage and expansion deformation of the first barrel assembly caused by temperature change is weakened, and the possibility of phase change of liquid hydrogen due to temperature change is reduced, which is conducive to maintaining the pressure stability of the hydrogen storage chamber, reducing the probability of damage and leakage of the first barrel assembly, providing guarantee for the safe storage and transportation of hydrogen, and saving the storage and transportation cost of hydrogen. One end of the first connecting assembly and one end of the second connecting assembly are both hinged to the first barrel assembly, the other end of the first connecting assembly is hinged to the second barrel assembly, the other end of the second connecting assembly is slidably hinged to the second barrel assembly, and the first connecting assembly and the second connecting assembly form a gap along the axial direction of the first barrel assembly; based on the above-mentioned setting mode, on the one hand, the first barrel assembly can be suspended in the vacuum chamber by the first connecting assembly and the second connecting assembly, which is convenient for the axial horizontal arrangement of the first barrel assembly, which is conducive to the use of the hydrogen storage container in a horizontal form, thereby improving the transportation convenience of the hydrogen storage container; on the other hand, the movement amount of the first barrel assembly can be constrained by the first connecting assembly and the second connecting assembly, thereby avoiding a large displacement of the first barrel assembly in the vacuum chamber, which is conducive to improving the stability of the first barrel assembly and liquid hydrogen, and further reducing the probability of damage and leakage of the first barrel assembly; on the other hand, if the first barrel assembly is deformed due to temperature changes, the hydrogen storage container can also use the rotation of the first connecting assembly and the rotation and sliding of the second connecting assembly to adapt to the above-mentioned deformation, thereby reducing the stress borne by the first barrel assembly, and further reducing the possibility of damage and leakage of the first barrel assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the exemplary embodiments below. The accompanying drawings are only for the purpose of illustrating exemplary embodiments and are not to be considered as limiting the present disclosure. Also, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0042] Figure 1 A schematic structural diagram of a hydrogen storage container according to an embodiment of the present disclosure;

[0043] Figure 2 A schematic structural diagram of a first connecting rod portion of an embodiment provided by the present disclosure;

[0044] Figure 3 A schematic structural diagram of a second connecting rod portion of an embodiment provided by the present disclosure;

[0045] Figure 4 for Figure 1 A schematic partial enlarged view of the middle A area;

[0046] Figure 5 for Figure 1 Schematic partial enlarged view of area B in the middle;

[0047] Figure 6 for Figure 1 Schematic partial enlarged view of the middle C area;

[0048] Figure 7 A schematic structural diagram of a first connecting pipe according to an embodiment of the present disclosure.

[0049] in, Figures 1 to 7 The corresponding relationship between the reference numerals and the component names is as follows:

[0050] 100 first cylinder assembly; 200 second cylinder assembly; 300 first connection assembly; 400 second connection assembly; 500 first connection pipe; 600 second connection pipe; 700 bellows; 800 sleeve;

[0051] 110 first cylinder body; 120 first end cap; 130 shaft ear; 140 first reinforcement ring; 150 vacuum insulation panel; 160 reflective insulation layer;

[0052] 210 second cylinder body; 220 second head; 230 second reinforcement ring; 240 support portion;

[0053] 310 first connecting rod portion;

[0054] 410 second connecting rod portion;

[0055] 510 bending part;

[0056] 241 support body; 242 baffle;

[0057] 311 first lifting ear; 312 first connecting rod; 313 first thermal insulation lining board;

[0058] 411 second lifting eye; 412 second connecting rod; 413 second heat insulation lining board;

[0059] 3121 first connecting rod body; 3122 first shaft seat; 3123 first pin shaft; 3124 first threaded sleeve;

[0060] 4121 second connecting rod body; 4122 second shaft seat; 4123 second pin shaft; 4124 second threaded sleeve; 4125 oblong hole;

[0061] 101 hydrogen storage chamber; 201 vacuum chamber. DETAILED DESCRIPTION

[0062] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0063] like Figures 1 to 7 As shown, according to an embodiment of the present disclosure, a hydrogen storage container is proposed, comprising: a first barrel assembly 100, which is formed with a hydrogen storage chamber 101; a second barrel assembly 200, which is formed with a vacuum chamber 201, the first barrel assembly 100 is arranged in the vacuum chamber 201, and a gap is formed between the second barrel assembly 200 and the first barrel assembly 100; a first connecting assembly 300, one end of which is hinged to the first barrel assembly 100, and the other end of which is hinged to the second barrel assembly 200; a second connecting assembly 400, one end of which is hinged to the first barrel assembly 100, and the other end of which is slidably hinged to the second barrel assembly 200; wherein, along the axial direction of the first barrel assembly 100, the first connecting assembly 300 and the second connecting assembly 400 are arranged at intervals.

[0064] The hydrogen storage container provided by the embodiment of the present disclosure includes a first cylinder assembly 100, a second cylinder assembly 200, a first connection assembly 300 and a second connection assembly 400, wherein the first cylinder assembly 100 is formed with a hydrogen storage chamber 101. In actual applications, the first cylinder assembly 100 can use the hydrogen storage chamber 101 to store liquid hydrogen.

[0065] The second barrel assembly 200 forms a vacuum chamber 201, in which the aforementioned first barrel assembly 100 is arranged, and a gap is formed between the first barrel assembly 100 and the second barrel assembly 200, so that the outer wall of the first barrel assembly 100 and the inner wall of the second barrel assembly 200 can be separated from each other, so that the first barrel assembly 100 can be wrapped by the vacuum area, and then through the vacuum insulation method, the convection heat exchange between the external environment and the first barrel assembly 100 is hindered, and the first barrel assembly 100 and the liquid hydrogen inside the first barrel assembly 100 are prevented from undergoing a large temperature change during storage or transportation, and the shrinkage and expansion deformation of the first barrel assembly 100 caused by temperature change is weakened, and the possibility of phase change of liquid hydrogen due to temperature change is reduced, which is conducive to maintaining the pressure stability of the hydrogen storage chamber 101, reducing the probability of damage and leakage of the first barrel assembly 100, providing protection for the safe storage and transportation of hydrogen, and saving the storage and transportation costs of hydrogen.

[0066] One end of the first connecting assembly 300 and one end of the second connecting assembly 400 are both hinged to the first barrel assembly 100, the other end of the first connecting assembly 300 is hinged to the second barrel assembly 200, and the other end of the second connecting assembly 400 is slidably hinged to the second barrel assembly 200, and the first connecting assembly 300 and the second connecting assembly 400 are spaced along the axial direction of the first barrel assembly 100; based on the above-mentioned arrangement, on the one hand, the first barrel assembly 100 can be suspended in the vacuum chamber 201 through the first connecting assembly 300 and the second connecting assembly 400, which is convenient for the axial horizontal arrangement of the first barrel assembly 100, which is conducive to the use of the hydrogen storage container in a horizontal form, thereby improving the transportation convenience of the hydrogen storage container; on the other hand, the movement amount of the first barrel assembly 100 can be obtained The constraints of the first connecting assembly 300 and the second connecting assembly 400 can prevent the first barrel assembly 100 from undergoing a large displacement in the vacuum chamber 201, which is beneficial to improving the stability of the first barrel assembly 100 and liquid hydrogen, and further reducing the probability of damage and leakage of the first barrel assembly 100; on the other hand, if the first barrel assembly 100 is deformed due to temperature changes, since the first connecting assembly 300 and the second connecting assembly 400 have a certain degree of freedom of movement, the constraint rigidity of the first barrel assembly 100 is relatively weak, and thus the hydrogen storage container can also utilize the rotation of the first connecting assembly 300 and the rotation and sliding of the second connecting assembly 400 to adapt to the aforementioned deformation, thereby reducing the stress on the first barrel assembly 100, and further reducing the possibility of damage and leakage of the first barrel assembly 100.

[0067] It is understandable that the first barrel assembly 100 and the second barrel assembly 200 may both be cylindrical structures, and accordingly, the axial direction of the first barrel assembly 100 is also the length direction of the first barrel assembly 100; for example, the first barrel assembly 100 and the second barrel assembly 200 may be cylindrical structures.

[0068] It can be understood that the aforementioned second connecting component 400 is slidingly hinged to the second cylinder component 200, that is, the hinge between the second cylinder component 200 and the second connecting component 400 can slide relative to the second cylinder component 200, thereby expanding the feasible movement direction of the second connecting component 400, so as to adapt to the displacement of the first cylinder component 100 in different directions caused by the shrinkage and expansion deformation, which is conducive to further alleviating the stress on the first cylinder component 100 during the shrinkage and expansion process.

[0069] It should be noted that the rotation direction of the aforementioned first connecting component 300, the rotation direction of the second connecting component 400 and the sliding direction of the second connecting component 400 can be set according to actual needs, and can adapt to the displacement caused by the shrinkage and expansion deformation of the first cylinder component 100, and no excessive restrictions are made here.

[0070] For example, in actual applications, the rotation direction of the first connecting component 300, the rotation direction of the second connecting component 400, and the sliding direction of the second connecting component 400 can be set to be coplanar with the axial direction of the first barrel assembly 100, so that when the first barrel assembly 100 undergoes radial shrinkage and expansion deformation, the first connecting component 300 and the second connecting component 400 can compensate for the radial dimensional change of the first barrel assembly 100 by rotation, and when the first barrel assembly 100 undergoes axial shrinkage and expansion deformation, the sliding displacement of the first connecting component 300 along the axial direction of the first barrel assembly 100 can be used to compensate for the axial dimensional change of the first barrel assembly 100.

[0071] In some feasible examples, the first cylinder assembly 100, the second cylinder assembly 200 and the vacuum chamber 201 can be coaxially arranged, which can improve the structural compactness of the hydrogen storage container on the one hand, and make the thickness of the vacuum area in the circumferential direction of the first cylinder assembly 100 more uniform on the other hand, thereby improving the thermal insulation effect of the hydrogen storage container.

[0072] like Figure 1 As shown, in some examples, the first connecting assembly 300 includes at least two first connecting rod portions 310, and the at least two first connecting rod portions 310 are arranged at intervals along the circumference of the first barrel assembly 100, one end of the first connecting rod portion 310 is hinged to the first barrel assembly 100, and the other end is hinged to the second barrel assembly 200; the second connecting assembly 400 includes at least two second connecting rod portions 410, and the at least two second connecting rod portions 410 are arranged at intervals along the circumference of the first barrel assembly 100, one end of the second connecting rod portion 410 is hinged to the first barrel assembly 100, and the other end is slidably hinged to the second barrel assembly 200.

[0073] In this technical solution, the first connecting assembly 300 may include a first connecting rod portion 310 having two ends respectively hinged to the first barrel assembly 100 and the second barrel assembly 200, the number of the first connecting rod portions 310 may be at least two, and each first connecting rod portion 310 is arranged at intervals along the circumference of the first barrel assembly 100, and accordingly, the second connecting assembly 400 may include a second connecting rod portion 410, one end of the second connecting rod portion 410 is hinged to the first barrel assembly 100, and the other end is slidably hinged to the second barrel assembly 200, and the second connecting rod portion The number of 410 may also be greater than or equal to two, and each second connecting rod portion 410 is arranged at intervals along the circumference of the first barrel assembly 100. Based on the above arrangement, the hydrogen storage container can be connected between the first barrel assembly 100 and the second barrel assembly 200 through multiple first connecting rod portions 310 and multiple second connecting rod portions 410, which is beneficial to further improve the stability of the first barrel assembly 100, reduce the possibility of large-scale movement of the first barrel assembly 100 in the vacuum chamber 201, and provide further protection for the safe storage and transportation of hydrogen.

[0074] For example, Figure 1 As shown, the number of the first connecting rod portion 310 and the second connecting rod portion 410 can be two each, the two first connecting rod portions 310 can be hinged at the same axial position of the first barrel assembly 100, and the two second connecting rod portions 410 can be hinged at the same axial position of the second barrel assembly 200, and the axial position of the first connecting rod portion 310 is different from the axial position of the second connecting rod portion 410; the angle between the two first connecting rod portions 310 along the circumference of the first barrel assembly 100 can be 180° to form a uniform arrangement along the circumference of the first barrel assembly 100, and accordingly, the angle between the two second connecting rod portions 410 along the circumference of the first barrel assembly 100 can also be 180°, so that based on the above-mentioned settings, it is beneficial to further ensure the installation stability and reliability of the first barrel assembly 100.

[0075] like Figure 2 As shown, in some examples, the first connecting rod portion 310 includes: two first lifting ears 311, one of the two first lifting ears 311 is arranged on the first barrel assembly 100, and the other is arranged on the second barrel assembly 200; a first connecting rod 312, one end of the first connecting rod 312 is hinged to one of the two first lifting ears 311, and the other end is hinged to the other of the two first lifting ears 311; a first thermal insulation lining 313, which is arranged between the first connecting rod 312 and the first lifting ear 311.

[0076] In this technical solution, the first connecting rod portion 310 may include a first lifting ear 311, a first connecting rod 312 and a first thermal insulation lining 313, wherein the number of the first lifting ears 311 is two, one first lifting ear 311 is arranged on the first barrel assembly 100, and the other first lifting ear 311 is arranged on the second barrel assembly 200, and the first connecting rod 312 is hinged to the first lifting ear 311, so that the first connecting rod portion 310 can constrain the position of the first barrel assembly 100 in the vacuum chamber 201, and is convenient for adapting to the deformation of the first barrel assembly 100 by rotation; the first thermal insulation lining 313 is arranged between the aforementioned first lifting ear 311 and the first connecting rod 312, thereby reducing the efficiency of heat conduction between the first barrel assembly 100 and the second barrel assembly 200 through the first connecting assembly 300, which is conducive to further reducing the heat exchange between the first barrel assembly 100 and the second barrel assembly 200, and is conducive to further maintaining the temperature stability of the first barrel assembly 100 and liquid hydrogen, and reducing the risk of leakage of the first barrel assembly 100.

[0077] It can be understood that the number of the first thermal insulation lining plates 313 is also two, and each first lifting ear 311 corresponds to a first thermal insulation lining plate 313 .

[0078] It is understandable that the first thermal insulation lining plate 313 may be made of a non-metallic material with low thermal conductivity, such as fiberglass.

[0079] For example, Figure 2 As shown, the first connecting rod 312 may include a first connecting rod body 3121, a first shaft seat 3122, a first pin shaft 3123 and a first threaded sleeve 3124, wherein the first connecting rod body 3121, the first shaft seat 3122 and the first pin shaft 3123 are all two in number, the first connecting rod body 3121 is provided with an external thread, the first threaded sleeve 3124 is provided with an internal thread, and the two ends of the first threaded sleeve 3124 are respectively threadedly connected with a first connecting rod body 3121, and one end of each first connecting rod body 3121 away from the first threaded sleeve 3124 is connected with a first shaft seat 312 2, and each first shaft seat 3122 is provided with a first pin shaft 3123, and the first pin shaft 3123 is hinged to the first lifting ear 311; based on the above-mentioned arrangement, in the process of installing the first barrel assembly 100 in the vacuum chamber 201, the spacing between the two first shaft seats 3122 can be adjusted by rotating the first connecting rod body 3121, so as to adapt to the size difference between the first barrel assembly 100 and the second barrel assembly 200 during the installation process, which is conducive to improving the assembly convenience of the hydrogen storage container and ensuring the spacing between the first barrel assembly 100 and the second barrel assembly 200. Accordingly, the above-mentioned first thermal insulation lining plate 313 can be sleeved on the above-mentioned first pin shaft 3123 and located between the first lifting ear 311 and the first shaft seat 3122.

[0080] like Figure 3 As shown, in some examples, the second connecting rod portion 410 includes: two second lifting ears 411, one of the two second lifting ears 411 is arranged on the first barrel assembly 100, and the other is arranged on the second barrel assembly 200; a second connecting rod 412, one end of the first connecting rod 312 is hinged to one of the two second lifting ears 411 arranged on the first barrel assembly 100, and the other end is slidably hinged to one of the two second lifting ears 411 arranged on the second barrel assembly 200; a second thermal insulation lining 413, which is arranged between the second connecting rod 412 and the second lifting ear 411.

[0081] In this technical solution, the second connecting rod portion 410 may include a second lifting ear 411, a second connecting rod 412 and a second heat insulation lining plate 413, wherein the number of the second lifting ears 411 is two, one second lifting ear 411 is arranged on the first barrel assembly 100, and the other second lifting ear 411 is arranged on the second barrel assembly 200, one end of the second connecting rod 412 is hinged on the second lifting ear 411 arranged on the first barrel assembly 100, and the other end is slidably hinged on the second lifting ear 411 arranged on the second barrel assembly 200, so that the second connecting rod portion 410 can constrain the second barrel assembly 200. 00 is positioned in the vacuum chamber 201, and is convenient for adapting to the deformation of the first barrel assembly 100 by rotation and / or sliding; the second thermal insulation lining 413 is arranged between the aforementioned second lifting ear 411 and the second connecting rod 412, so as to reduce the efficiency of heat conduction between the first barrel assembly 100 and the second barrel assembly 200 through the second connecting assembly 400, which is beneficial to further reduce the heat exchange between the first barrel assembly 100 and the second barrel assembly 200, and is beneficial to further maintain the temperature stability of the first barrel assembly 100 and the liquid hydrogen, and reduce the risk of leakage of the first barrel assembly 100.

[0082] It can be understood that the number of the second thermal insulation lining plates 413 is also two, and each second lifting ear 411 corresponds to one second thermal insulation lining plate 413 .

[0083] It is understandable that the second thermal insulation lining plate 413 may be made of a non-metallic material with low thermal conductivity, such as fiberglass.

[0084] For example, Figure 3As shown, the second connecting rod 412 may include a second connecting rod body 4121, a second shaft seat 4122, a second pin shaft 4123 and a second threaded sleeve 4124, wherein the number of the second connecting rod body 4121, the second shaft seat 4122 and the second pin shaft 4123 are all two, the second connecting rod body 4121 is provided with an external thread, the second threaded sleeve 4124 is provided with an internal thread, and the two ends of the second threaded sleeve 4124 are respectively threadedly connected to a second connecting rod body 4121, one end of each second connecting rod body 4121 away from the second threaded sleeve 4124 is connected to a second shaft seat 4122, and each second shaft seat 4122 is provided with a second pin shaft 4123, and one of the two second pin shafts 4123 is hinged to a first cylinder body 4124. On the second lifting ear 411 of the assembly 100, the second lifting ear 411 of the second barrel assembly 200 is provided with an oblong hole 4125, and the other of the two second pins 4123 is slidably hinged on the second lifting ear 411 of the second barrel assembly 200 through the aforementioned oblong hole 4125; based on the aforementioned arrangement, in the process of installing the second barrel assembly 200 in the vacuum chamber 201, the spacing between the two second shaft seats 4122 can be adjusted by rotating the second connecting rod body 4121, so as to adapt to the size difference between the first barrel assembly 100 and the second barrel assembly 200 during the installation process, which is conducive to improving the assembly convenience of the hydrogen storage container and ensuring the spacing between the first barrel assembly 100 and the second barrel assembly 200. Accordingly, the aforementioned second thermal insulation lining plate 413 can be sleeved on the aforementioned second pin 4123 and located between the second lifting ear 411 and the second shaft seat 4122.

[0085] like Figure 1 As shown, in some examples, the first cylinder assembly 100 includes: a first cylinder body 110; a first head 120, each of the two axial ends of the first cylinder body 110 is connected to a first head 120, and the first head 120 and the first cylinder body 110 form a hydrogen storage chamber 101; an axial ear 130, each first head 120 is provided with an axial ear 130, and the first connecting assembly 300 and the second connecting assembly 400 are respectively hinged to different axial ears 130.

[0086] In this technical solution, the first cylinder assembly 100 may include a first cylinder body 110, two first heads 120 and an axial ear 130, wherein two ends of the first cylinder body 110 are respectively connected to a first head 120 to enclose the aforementioned hydrogen storage chamber 101 with the first head 120. It can be understood that the first cylinder body 110 and the first head 120 form the main body of the first cylinder assembly 100; each first head 120 is provided with an axial ear 130, that is, the number of the axial ears 130 is two, and the first cylinder assembly 100 can be respectively hinged to the first connecting assembly 300 and the second connecting assembly 400 through the two aforementioned axial ears 130, so as to facilitate the first connecting assembly 30 0 and the second connecting assembly 400 avoid the main part of the first barrel assembly 100, which is beneficial to expand the installation space of the first connecting assembly 300 and the second connecting assembly 400, thereby facilitating the hydrogen storage container to adopt the first connecting assembly 300 and the second connecting assembly 400 with a longer length, which is beneficial to further reduce the efficiency of heat conduction between the first barrel assembly 100 and the second barrel assembly 200 through the second connecting assembly 400, reduce the heat exchange between the first barrel assembly 100 and the second barrel assembly 200, stabilize the temperature of the first barrel assembly 100 and the liquid hydrogen, reduce the shrinkage and expansion deformation of the first barrel assembly 100 caused by temperature changes, and help further improve the safety and reliability of the liquid storage container.

[0087] It is understandable that the first cylinder body 110 may be a cylindrical structure with open ends and a hollow interior, and the first cover 120 covers the open ends of the first cylinder body 110 to enclose the hydrogen storage chamber 101 together with the first cylinder body 110 .

[0088] It is understandable that the first head 120 and the axial ear 130 may be an integrated structure, or the axial ear 130 may be welded to the first head 120 , thereby ensuring the connection reliability between the axial ear 130 and the first head 120 .

[0089] In some feasible examples, the first barrel assembly 100 is made of ultra-low carbon austenitic stainless steel material, for example, may be made of S31603.

[0090] like Figure 1 As shown, in some examples, the first cylinder assembly 100 further includes: a first reinforcement ring 140 disposed on the first cylinder body 110 .

[0091] In this technical solution, the first barrel assembly 100 may further include a first reinforcement ring 140 disposed on the first barrel body 110. It can be understood that the first reinforcement ring 140 is arranged along the circumference of the first barrel body 110. Based on the above-mentioned arrangement, the pressure resistance of the first barrel assembly 100 can be further improved, the structural reliability of the first barrel assembly 100 can be improved, and the leakage risk of the first barrel assembly 100 can be reduced.

[0092] In some feasible examples, the first reinforcement ring 140 may be a steel external pressure reinforcement ring, thereby specifically enhancing the performance of the first cylinder assembly 100 in resisting external pressure and reducing the possibility of structural instability of the first cylinder assembly 100 due to external pressure.

[0093] like Figure 1 and Figure 4 As shown, in some examples, the first cylinder assembly 100 also includes: a vacuum insulation panel 150, which is covered on the first cylinder body 110 and the first head 120, and the vacuum insulation panel 150 is located outside the hydrogen storage chamber 101; a reflective insulation layer 160, which is covered on the vacuum insulation panel 150, and the reflective insulation layer 160 is located between the vacuum insulation panel 150 and the second cylinder assembly 200, and a gap is formed between the reflective insulation layer 160 and the second cylinder assembly 200.

[0094] In this technical solution, the first cylinder assembly 100 may also include a vacuum insulation panel 150 and a reflective insulation layer 160, wherein the vacuum insulation panel 150 covers the outer wall of the first cylinder body 110 and the first head 120, the reflective insulation layer 160 covers the vacuum insulation panel 150 and is located between the vacuum insulation panel 150 and the second cylinder assembly 200, and a gap is formed between the reflective insulation layer 160 and the second cylinder assembly 200, so that based on the above-mentioned arrangement, on the one hand, the hydrogen storage container can use the vacuum insulation panel 150 to cooperate with the vacuum chamber 201 to further enhance the vacuum insulation effect of the first cylinder assembly 100 and reduce the external environment. On the other hand, the hydrogen storage container can also use the reflective insulation layer 160 to further weaken the radiation heat transfer between the external environment and the first barrel assembly 100, thereby further limiting the heat transfer mode between the external environment and the first barrel assembly 100, reducing the possibility of temperature fluctuations of the first barrel assembly 100 and liquid hydrogen, and preventing the possibility of large-scale deformation of the first barrel assembly 100 due to temperature changes, which is conducive to further improving the reliability and safety of the first barrel assembly 100, reducing the leakage probability of the first barrel assembly 100, and providing further protection for the safe storage and transportation of hydrogen.

[0095] It is understood that the reflective insulation layer 160 may be a multi-layer structure, for example, it may include a plurality of stacked reflective screens and a spacer material disposed between two adjacent layers of reflective screens, wherein the reflective screen may be a metal plate with high reflectivity or a film with a metal coating, and the spacer material may be made of an insulating material to prevent direct contact between two adjacent layers of reflective screens. The reflective screen may be made of materials such as aluminum foil or aluminized polyester film, and the spacer material may include but is not limited to one or more of glass fiber paper, glass fiber cloth, chemical fiber paper, and synthetic fiber screen.

[0096] In some feasible examples, the vacuum insulation panel 150 can be a flexible vacuum insulation panel, which is conducive to enhancing the deformation ability of the vacuum insulation panel 150, so as to improve the fit between the vacuum insulation panel 150 and the first cylinder assembly 100, thereby enhancing the insulation effect. It is understandable that the flexible vacuum insulation panel may include insulation material, surface diaphragm and gas adsorption material, wherein the gas adsorption material and the insulation material are filled in the surface diaphragm; the interior of the surface diaphragm is a vacuum environment; the insulation material is usually a porous material, such as powdered silica, aerogel, open-cell polyester, etc., which is used to play a structural support role on the one hand and to inhibit heat conduction and heat convection on the other hand; the gas adsorption material may include a getter and a desiccant to adsorb the gas released by the insulation material and the surface diaphragm during use.

[0097] In some examples, the diameter of lug 130 is less than or equal to 400 mm.

[0098] In this technical solution, the diameter of the shaft ear 130 can be set to be less than or equal to 400 mm, thereby avoiding the diameter of the shaft ear 130 being too thick and reducing the amount of shrinkage and expansion deformation of the shaft ear 130 caused by temperature changes, which is beneficial to further improve the structural stability and position stability of the first cylinder assembly 100.

[0099] like Figure 1 and Figure 5 As shown, in some examples, the second cylinder assembly 200 includes: a second cylinder body 210, a first connecting assembly 300 and a second connecting assembly 400 are both hinged to the inner circumferential wall of the second cylinder body 210; a second head 220, and a second head 220 is respectively connected to the two ends of the second cylinder body 210 in the axial direction, and the second head 220 and the second cylinder body 210 form a vacuum chamber 201; a support portion 240, which is arranged on the inner circumferential wall of the second cylinder body 210, and the first cylinder assembly 100 abuts against the support portion 240.

[0100] In this technical solution, the second cylinder assembly 200 may include a second cylinder body 210 and two first heads 120, wherein the two ends of the second cylinder body 210 are respectively connected to a second head 220 to form the aforementioned vacuum chamber 201 together with the second head 220; the support portion 240 is arranged on the inner circumferential wall of the second cylinder body 210, and is used to abut the first cylinder assembly 100, thereby facilitating further constraining the freedom of the first cylinder assembly 100 in the vacuum chamber 201, improving the stability of the first cylinder assembly 100, and reducing the risk of damage and leakage of the first cylinder assembly 100.

[0101] It is understandable that the second cylinder body 210 may be a cylindrical structure with open ends and a hollow interior, and the second cover 220 covers the open ends of the second cylinder body 210 to enclose the vacuum chamber 201 together with the second cylinder body 210 .

[0102] like Figure 5 As shown, in some feasible examples, the support portion 240 may include a support body 241 and a baffle 242, the baffle 242 is welded to the second cylinder body 210, and an installation groove is formed between the baffle 242 and the second cylinder body 210, and the support body 241 is fixedly disposed in the installation groove.

[0103] In some feasible examples, the support portion 240 is made of a non-metal material with low thermal conductivity, for example, may be made of fiberglass.

[0104] like Figure 1 As shown, in some examples, the second barrel assembly 200 further includes: a second reinforcement ring 230, disposed on the barrel body;

[0105] In this technical solution, the second cylinder assembly 200 may further include a second reinforcement ring 230 disposed on the second cylinder body 210. It can be understood that the second reinforcement ring 230 is arranged along the circumference of the second cylinder body 210. Based on the above arrangement, the pressure resistance of the second cylinder assembly 200 can be further improved, and the structural reliability of the second cylinder assembly 200 can be improved, thereby reducing the probability of damage to the second cylinder assembly 200, which is beneficial to further extend the service life of the hydrogen storage container.

[0106] In some feasible examples, the second reinforcement ring 230 may be a steel external pressure reinforcement ring, thereby specifically enhancing the performance of the second cylinder assembly 200 in resisting external pressure and reducing the possibility of structural instability of the second cylinder assembly 200 due to external pressure.

[0107] like Figure 1 , Figure 6 and Figure 7As shown, in some examples, the hydrogen storage container also includes: a first connecting tube 500, which is passed through the second head 220, one end of the first connecting tube 500 is connected to the hydrogen storage chamber 101, and the part of the first connecting tube 500 located in the vacuum chamber 201 has a plurality of bending portions 510; a second connecting tube 600, which is passed through the first cylinder assembly 100 and the second cylinder body 210, and a part of the second connecting tube 600 is located on the outside of the second cylinder body 210; and a bellows 700, which is sleeved on the part of the second connecting tube 600 located on the outside of the second cylinder body 210.

[0108] In this technical solution, the hydrogen storage container may further include a first connecting tube 500, a second connecting tube 600 and a bellows 700, wherein the first connecting tube 500 is passed through the second end cap 220 and one end is connected to the hydrogen storage chamber 101, so that in practical applications, the first connecting tube 500 can be used for liquid hydrogen input or output operations of the liquid storage container to facilitate the storage and supply of hydrogen. It can be understood that since the first connecting tube 500 is connected to the hydrogen storage chamber 101 and passed through the second end cap 220, the first connecting tube 500 has a portion located in the vacuum chamber 201, and accordingly, the portion of the first connecting tube 500 located in the vacuum chamber 201 has a plurality of bending portions 510, so that the first connecting tube 500 has a higher flexibility, which is conducive to absorbing the temperature difference stress of the first barrel assembly 100 and the second barrel assembly 200, and adapting to the shrinkage and expansion deformation of the first barrel assembly 100 and the second barrel assembly 200, which is conducive to further reducing the possibility of leakage of the hydrogen storage container and extending the service life of the first connecting tube 500.

[0109] It is understandable that if Figure 1 and Figure 7 As shown, the portion of the first connecting tube 500 located in the vacuum chamber 201 has a plurality of bends 510, that is, the portion of the first connecting tube 500 located in the vacuum chamber 201 may have a plurality of pipe segments connected in sequence, the extension directions of the various pipe segments are different from each other, and the adjacent pipe segments are connected by the bends 510. The axial directions of the aforementioned various pipe segments may be located in the same plane or in different planes, and may be specifically set in combination with requirements in practical applications. For example, the first connecting tube 500 may be a π-shaped compensator or a bidirectional π-shaped compensator.

[0110] The second connecting tube 600 passes through the first cylinder assembly 100 and the second cylinder body 210, and part of the second connecting tube 600 is located on the outside of the second cylinder body 210. In practical applications, the second connecting tube 600 can be used as a test interface, such as for docking pressure measuring equipment, liquid level measuring equipment, etc. The bellows 700 is sleeved on the part of the second connecting tube 600 located on the outside of the second cylinder body 210, so that it can be used to compensate for the temperature difference stress between the second cylinder body 210 and the second connecting tube 600, which is beneficial to further reduce the leakage probability of the hydrogen storage container.

[0111] For example, Figure 6 As shown, the hydrogen storage container may further include a sleeve 800 , which is disposed on the outside of the second cylinder body 210 and sleeved on the portion located on the outside of the second cylinder body 210 , and the bellows 700 is disposed on the sleeve 800 .

[0112] In the present disclosure, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance; the term "plurality" refers to two or more, unless otherwise expressly defined. The terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present disclosure can be understood according to the specific circumstances.

[0113] In the description of the present disclosure, it is necessary to understand that the directions or positional relationships indicated by the terms "up", "down", "left", "right", "front", "back", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation, and therefore, should not be understood as a limitation on the present disclosure.

[0114] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0115] The above are only preferred embodiments of the present disclosure and are not intended to limit the present disclosure. For those skilled in the art, the present disclosure may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A hydrogen storage container, characterized in that: include: A first cylinder assembly is formed with a hydrogen storage cavity; a second barrel assembly, forming a vacuum chamber, wherein the first barrel assembly is disposed in the vacuum chamber, and a gap is formed between the second barrel assembly and the first barrel assembly; A first connecting assembly, one end of which is hinged to the first barrel assembly, and the other end of which is hinged to the second barrel assembly; A second connecting assembly, one end of which is hinged to the first barrel assembly, and the other end of which is slidably hinged to the second barrel assembly; Wherein, along the axial direction of the first cylinder assembly, the first connecting assembly and the second connecting assembly are arranged at intervals.

2. The hydrogen storage container according to claim 1, characterized in that: The first connecting assembly includes at least two first connecting rod parts, the at least two first connecting rod parts are arranged at intervals along the circumference of the first barrel assembly, one end of the first connecting rod part is hinged to the first barrel assembly, and the other end is hinged to the second barrel assembly; The second connecting assembly includes at least two second connecting rod parts, which are arranged at intervals along the circumference of the first barrel assembly. One end of the second connecting rod part is hinged to the first barrel assembly, and the other end is slidably hinged to the second barrel assembly.

3. The hydrogen storage container according to claim 2, characterized in that: The first connecting rod portion comprises: Two first lifting ears, one of the two first lifting ears is arranged on the first barrel assembly, and the other is arranged on the second barrel assembly; A first connecting rod, one end of the first connecting rod is hinged to one of the two first lifting ears, and the other end of the first connecting rod is hinged to the other of the two first lifting ears; The first heat-insulating lining is arranged between the first connecting rod and the first lifting ear.

4. The hydrogen storage container according to claim 2, characterized in that: The second connecting rod portion comprises: Two second lifting ears, one of the two second lifting ears is arranged on the first barrel assembly, and the other is arranged on the second barrel assembly; a second connecting rod, wherein one end of the first connecting rod is hinged to one of the two second lifting ears provided on the first barrel assembly, and the other end of the first connecting rod is slidably hinged to one of the two second lifting ears provided on the second barrel assembly; The second heat-insulating lining is arranged between the second connecting rod and the second lifting ear.

5. The hydrogen storage container according to any one of claims 1 to 4, characterized in that: The first cylinder assembly comprises: A first cylinder body; A first end cap, wherein two ends of the first cylinder body in the axial direction are respectively connected with the first end cap, and the first end cap and the first cylinder body form the hydrogen storage chamber; Axle ears, each of the first heads is provided with one axle ear, and the first connecting assembly and the second connecting assembly are respectively hinged to different axle ears.

6. The hydrogen storage container according to claim 5, characterized in that: The first barrel assembly also includes: The first reinforcement ring is arranged on the first cylinder body.

7. The hydrogen storage container according to claim 5, characterized in that: The first barrel assembly also includes: A vacuum insulation panel, covering the first cylinder body and the first end cover, the vacuum insulation panel being located outside the hydrogen storage chamber; A reflective insulation layer is covered on the vacuum insulation panel. The reflective insulation layer is located between the vacuum insulation panel and the second cylinder assembly. A gap is formed between the reflective insulation layer and the second cylinder assembly.

8. The hydrogen storage container according to claim 5, characterized in that: The diameter of the shaft ear is less than or equal to 400 mm.

9. The hydrogen storage container according to any one of claims 1 to 4, characterized in that: The second cylinder assembly comprises: A second cylinder body, wherein the first connecting assembly and the second connecting assembly are both hinged to the inner peripheral wall of the second cylinder body; A second end cap, wherein two ends of the second cylinder body in the axial direction are respectively connected with a second end cap, and the second end cap and the second cylinder body form the vacuum chamber; The support portion is arranged on the inner peripheral wall of the second cylinder body, and the first cylinder assembly abuts against the support portion.

10. The hydrogen storage container according to claim 9, characterized in that: The second cylinder assembly comprises: The second reinforcement ring is arranged on the cylinder body.

11. The hydrogen storage container according to claim 10, characterized in that: Also includes: A first connecting pipe is passed through the second end cap, one end of the first connecting pipe is connected to the hydrogen storage chamber, and a portion of the first connecting pipe located in the vacuum chamber has a plurality of bending portions; A second connecting pipe is provided through the first cylinder assembly and the second cylinder body, and a portion of the second connecting pipe is located outside the second cylinder body; The bellows is sleeved on the portion of the second connecting pipe located outside the second cylinder body.

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