Hydrogen storage container

Abstract

The present disclosure provides a hydrogen storage container, comprising: a first cylinder assembly, forming a hydrogen storage cavity; a second cylinder assembly, forming a vacuum cavity, the first cylinder assembly being arranged in the vacuum cavity, and a space being formed between the second cylinder assembly and the first cylinder assembly; a first connecting assembly, one end of which is hinged to the first cylinder assembly and the other end of which is hinged to the second cylinder assembly; and a second connecting assembly, one end of which is hinged to the first cylinder assembly and the other end of which is slidingly hinged to the second cylinder assembly; wherein the first connecting assembly and the second connecting assembly are arranged in a spaced manner along the axial direction of the first cylinder assembly. The hydrogen storage container has good heat insulation effect and high structural stability, which is conducive to reducing the 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 particularly relates to a hydrogen storage container. BACKGROUND

[0002] With the increasing demand for energy, the application of renewable energy is also increasingly valued. Hydrogen energy, as a clean, efficient and renewable energy, will have a wider and wider development prospect, which puts higher requirements on hydrogen storage technology. At present, low-temperature liquid hydrogen storage has great advantages in hydrogen energy transportation and storage due to its large storage density. However, in the actual storage and transportation process, sometimes leakage or accidents occur, which is not conducive to further control of the storage and transportation cost of hydrogen energy, and limits the actual application of hydrogen energy. SUMMARY

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

[0004] Therefore, according to the embodiments of the present disclosure, a hydrogen storage container is provided, which comprises:

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

[0006] A second cylinder assembly is formed with a vacuum cavity, the first cylinder assembly is arranged in the vacuum cavity, and a space is formed between the second cylinder assembly and the first cylinder assembly;

[0007] A first connecting assembly is hingedly connected to one end of the first cylinder assembly and hingedly connected to the other end of the second cylinder assembly;

[0008] A second connecting assembly is hingedly connected to one end of the first cylinder assembly and slidingly hingedly connected to the other end of the second cylinder 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 implementation, the first connecting assembly comprises at least two first connecting rods, the at least two first connecting rods are arranged at intervals along the circumferential direction of the first cylinder assembly, one end of the first connecting rod is hingedly connected to the first cylinder assembly, and the other end is hingedly connected to the second cylinder assembly;

[0011] The second connecting assembly comprises at least two second connecting rods, the at least two second connecting rods are arranged at intervals along the circumferential direction of the first cylinder assembly, one end of the second connecting rod is hingedly connected to the first cylinder assembly, and the other end is slidingly hingedly connected to the second cylinder assembly.

[0012] In a feasible implementation, the first connecting rod comprises:

[0013] two first lugs, one of the two first lugs is arranged on the first cylinder assembly, and the other is arranged on the second cylinder assembly;

[0014] a first connecting rod, one end of the first connecting rod is hingedly connected to one of the two first lugs, and the other end is hingedly connected to the other of the two first lugs;

[0015] a first thermal insulation baffle plate arranged between the first connecting rod and the first lugs.

[0016] In an embodiment, the second connecting rod part comprises:

[0017] two second lugs, one of the two second lugs is arranged on the first cylinder assembly, and the other is arranged on the second cylinder assembly;

[0018] a second connecting rod, one end of the second connecting rod is hingedly connected to one of the two second lugs arranged on the first cylinder assembly, and the other end is slidingly hingedly connected to one of the two second lugs arranged on the second cylinder assembly;

[0019] a second thermal insulation baffle plate arranged between the second connecting rod and the second lugs.

[0020] In an embodiment, the first cylinder assembly comprises:

[0021] a first cylinder body;

[0022] two first end covers, one of the two first end covers is connected to each end of the first cylinder body in the axial direction, and the first end cover and the first cylinder body form a hydrogen storage cavity;

[0023] a shaft lug, each first end cover is provided with a shaft lug, and the first connecting assembly and the second connecting assembly are hingedly connected to different shaft lugs.

[0024] In an embodiment, the first cylinder assembly further comprises:

[0025] a first reinforcing ring arranged on the first cylinder body.

[0026] In an embodiment, the first cylinder assembly further comprises:

[0027] a vacuum insulation board arranged on the first cylinder body and the first end cover, the vacuum insulation board being located outside the hydrogen storage cavity;

[0028] a reflective insulation layer arranged on the vacuum insulation board, the reflective insulation layer being located between the vacuum insulation board and the second cylinder assembly, and a gap being formed between the reflective insulation layer and the second cylinder assembly.

[0029] In an embodiment, the diameter of the shaft lug is less than or equal to 400 mm.

[0030] In an embodiment, the second cylinder assembly comprises:

[0031] a second cylinder body, the first connecting assembly and the second connecting assembly are both hinged to an inner circumferential wall of the second cylinder body;

[0032] a second head, each end of the second cylinder body is connected with one second head, the second head and the second cylinder body enclose a vacuum cavity;

[0033] a support portion, the first cylinder assembly abuts against the support portion.

[0034] In an embodiment, the second cylinder assembly further comprises:

[0035] a second reinforcing ring, arranged on the cylinder body.

[0036] In an embodiment, the hydrogen storage container further comprises:

[0037] a first connecting pipe, penetrating the second head, one end of the first connecting pipe communicates with the hydrogen storage cavity, and the part of the first connecting pipe located in the vacuum cavity has a plurality of bending portions;

[0038] a second connecting pipe, penetrating the first cylinder assembly and the second cylinder body, and part of the second connecting pipe is located outside the second cylinder body;

[0039] a corrugated pipe, sleeved on the part 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 embodiments of the present disclosure comprises a first cylinder assembly, a second cylinder assembly, a first connecting assembly and a second connecting assembly, wherein the first cylinder assembly is formed with a hydrogen storage cavity, in actual application, the first cylinder assembly can store liquid hydrogen by using the hydrogen storage cavity; the second cylinder assembly is formed with a vacuum cavity, the first cylinder assembly is arranged in the vacuum cavity, and a space is formed between the first cylinder assembly and the second cylinder assembly, so that the outer wall of the first cylinder assembly and the inner wall of the second cylinder assembly can be separated from each other, so that the first cylinder assembly can be wrapped by the vacuum area, and then the heat exchange between the external environment and the first cylinder assembly is hindered by the vacuum heat insulation, so as to avoid the large temperature change of the first cylinder assembly and the liquid hydrogen in the first cylinder assembly during storage or transportation, weaken the shrinkage deformation of the first cylinder assembly caused by temperature change, and reduce the possibility of phase change of the liquid hydrogen caused by temperature change, so as to help maintain the pressure stability of the hydrogen storage cavity, reduce the probability of damage and leakage of the first cylinder assembly, provide protection for safe storage and transportation of hydrogen, save the storage and transportation cost of hydrogen. One end of the first connecting assembly and one end of the second connecting assembly are hinged to the first cylinder assembly, the other end of the first connecting assembly is hinged to the second cylinder assembly, and the other end of the second connecting assembly is slidingly hinged to the second cylinder assembly, and the first connecting assembly and the second connecting assembly form a space along the axial direction of the first cylinder assembly; based on the above arrangement, on the one hand, the first cylinder assembly can be hung in the vacuum cavity by the first connecting assembly and the second connecting assembly, which is convenient for the axial horizontal arrangement of the first cylinder assembly, is conducive to the use of the hydrogen storage container in the form of horizontal type, and further improves the transportation convenience of the hydrogen storage container; on the other hand, the movement amount of the first cylinder assembly can be constrained by the first connecting assembly and the second connecting assembly, so as to avoid the large displacement of the first cylinder assembly in the vacuum cavity, which is conducive to improving the stability of the first cylinder assembly and the liquid hydrogen, and further reducing the probability of damage and leakage of the first cylinder assembly; on the other hand, if the first cylinder assembly is deformed due to temperature change, the hydrogen storage container can also adapt to the deformation by the rotation of the first connecting assembly and the rotation and sliding of the second connecting assembly, so as to weaken the stress borne by the first cylinder assembly and further reduce the possibility of damage and leakage of the first cylinder assembly. BRIEF DESCRIPTION OF DRAWINGS

[0041] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the detailed description of the example embodiments herein below. The drawings are included only to illustrate example embodiments and are not to be considered as limiting of the present disclosure. Furthermore, like reference numerals are used to designate corresponding or like parts throughout the several views of the drawings. In the drawings:

[0042] Figure 1 a schematic structural diagram of a hydrogen storage container of an embodiment provided by the present disclosure;

[0043] Figure 2 Schematic structural view of a first connecting rod part of an embodiment provided for the present disclosure;

[0044] Figure 3 Schematic structural view of a second connecting rod part of an embodiment provided for the present disclosure;

[0045] Figure 4 Schematic structural view of a first connecting pipe of an embodiment provided for the present disclosure. Figure 1 Schematic partial enlarged view of region A in FIG. 1;

[0046] Figure 5 Schematic partial enlarged view of region B in FIG. 1; Figure 1 Schematic partial enlarged view of region B in FIG. 1;

[0047] Figure 6 Schematic partial enlarged view of region C in FIG. 1; Figure 1 Schematic partial enlarged view of region C in FIG. 1;

[0048] Figure 7 Schematic structural view of a first connecting pipe of an embodiment provided for the present disclosure.

[0049] Correspondence between reference signs and component names in FIG. 1 is as follows: Figures 1 to 7 Correspondence between reference signs and component names in FIG. 1 is as follows:

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

[0051] 110 first cylinder body; 120 first head; 130 shaft lug; 140 first reinforcing ring; 150 vacuum insulation board; 160 reflective insulation layer;

[0052] 210 second cylinder body; 220 second head; 230 second reinforcing ring; 240 support part;

[0053] 310 first connecting rod part;

[0054] 410 second connecting rod part;

[0055] 510 bent part;

[0056] 241 support body; 242 baffle;

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

[0058] 411 second lifting lug; 412 second connecting rod; 413 second thermal insulation lining;

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

[0060] 4121 Second connecting rod body; 4122 Second bearing seat; 4123 Second pin; 4124 Second threaded sleeve; 4125 Oblong hole;

[0061] 101 Hydrogen storage chamber; 201 Vacuum chamber. Detailed Implementation

[0062] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0063] like Figures 1 to 7 As shown, an embodiment of this disclosure proposes a hydrogen storage container, comprising: a first cylindrical assembly 100 having a hydrogen storage cavity 101; a second cylindrical assembly 200 having a vacuum cavity 201, wherein the first cylindrical assembly 100 is disposed within the vacuum cavity 201, and a gap is formed between the second cylindrical assembly 200 and the first cylindrical assembly 100; a first connecting assembly 300, one end of which is hinged to the first cylindrical assembly 100, and the other end of which is hinged to the second cylindrical assembly 200; and a second connecting assembly 400, one end of which is hinged to the first cylindrical assembly 100, and the other end of which is slidably hinged to the second cylindrical assembly 200; wherein, along the axial direction of the first cylindrical assembly 100, the first connecting assembly 300 and the second connecting assembly 400 are arranged at intervals.

[0064] The hydrogen storage container provided in this embodiment includes a first cylindrical assembly 100, a second cylindrical assembly 200, a first connecting assembly 300, and a second connecting assembly 400. The first cylindrical assembly 100 forms a hydrogen storage cavity 101. In practical applications, the first cylindrical assembly 100 can use the hydrogen storage cavity 101 to store liquid hydrogen.

[0065] The second cylinder assembly 200 is formed with a vacuum cavity 201, the first cylinder assembly 100 is arranged in the vacuum cavity 201, and a space is formed between the first cylinder assembly 100 and the second cylinder assembly 200, so that the outer wall of the first cylinder assembly 100 and the inner wall of the second cylinder assembly 200 can be separated from each other, so that the first cylinder assembly 100 can be wrapped by the vacuum area, and then the heat convection between the external environment and the first cylinder assembly 100 is hindered by the vacuum heat insulation, so as to avoid the large temperature change of the first cylinder assembly 100 and the liquid hydrogen in the first cylinder assembly 100 during storage or transportation, weaken the shrinkage deformation of the first cylinder assembly 100 caused by temperature change, and reduce the possibility of phase change of the liquid hydrogen caused by temperature change, so as to stabilize the pressure of the hydrogen storage cavity 101, reduce the probability of damage and leakage of the first cylinder assembly 100, provide protection for safe storage and transportation of hydrogen, save the storage and transportation cost of hydrogen.

[0066] One end of the first connecting assembly 300 and one end of the second connecting assembly 400 are hinged to the first cylinder assembly 100, the other end of the first connecting assembly 300 is hinged to the second cylinder assembly 200, and the other end of the second connecting assembly 400 is slidingly hinged to the second cylinder assembly 200, and the first connecting assembly 300 and the second connecting assembly 400 are spaced apart along the axial direction of the first cylinder assembly 100; based on the above arrangement, on the one hand, the first cylinder assembly 100 can be hung in the vacuum cavity 201 through the first connecting assembly 300 and the second connecting assembly 400, facilitating the axial and horizontal arrangement of the first cylinder assembly 100, and being 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 cylinder assembly 100 can be constrained by the first connecting assembly 300 and the second connecting assembly 400, thereby avoiding large displacement of the first cylinder assembly 100 in the vacuum cavity 201, and being conducive to improving the stability of the first cylinder assembly 100 and the liquid hydrogen, and further reducing the probability of damage and leakage of the first cylinder assembly 100; on the other hand, if the first cylinder assembly 100 deforms due to temperature change, since the first connecting assembly 300 and the second connecting assembly 400 have a certain degree of freedom of movement, the constraint stiffness of the first cylinder assembly 100 is relatively weak, so that the hydrogen storage container can also adapt to the deformation by the rotation of the first connecting assembly 300 and the rotation and sliding of the second connecting assembly 400, thereby reducing the stress borne by the first cylinder assembly 100, and further reducing the possibility of damage and leakage of the first cylinder assembly 100.

[0067] It can be understood that the first cylinder assembly 100 and the second cylinder assembly 200 can both be cylindrical structures, and accordingly, the axial direction of the first cylinder assembly 100 is the length direction of the first cylinder assembly 100; for example, the first cylinder assembly 100 and the second cylinder assembly 200 can be cylindrical structures.

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

[0069] It should be noted that 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 according to actual needs, as long as they can accommodate the displacement caused by the expansion and contraction deformation of the first cylindrical component 100. No further restrictions are imposed here.

[0070] For example, in practical 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 cylindrical component 100. Thus, when the first cylindrical component 100 undergoes radial expansion and contraction deformation, the first connecting component 300 and the second connecting component 400 can compensate for the radial dimensional change of the first cylindrical component 100 by rotation. When the first cylindrical component 100 undergoes axial expansion and contraction deformation, the sliding displacement of the first connecting component 300 along the axial direction of the first cylindrical component 100 can be used to compensate for the axial dimensional change of the first cylindrical component 100.

[0071] In some feasible examples, the first cylindrical assembly 100, the second cylindrical assembly 200, and the vacuum chamber 201 can be arranged coaxially, 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 cylindrical assembly 100 more uniform on the other hand, thereby improving the heat 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, which are arranged circumferentially spaced along the first cylindrical assembly 100. One end of each first connecting rod portion 310 is hinged to the first cylindrical assembly 100, and the other end is hinged to the second cylindrical assembly 200. The second connecting assembly 400 includes at least two second connecting rod portions 410, which are arranged circumferentially spaced along the first cylindrical assembly 100. One end of each second connecting rod portion 410 is hinged to the first cylindrical assembly 100, and the other end is slidably hinged to the second cylindrical assembly 200.

[0073] In the technical solution, the first connecting assembly 300 can include first connecting rods 310 hingedly connected to the first cylinder assembly 100 and the second cylinder assembly 200 at two ends, the number of the first connecting rods 310 can be at least two, and each first connecting rod 310 is arranged at intervals along the circumference of the first cylinder assembly 100. Correspondingly, the second connecting assembly 400 can include second connecting rods 410, one end of each second connecting rod 410 is hingedly connected to the first cylinder assembly 100, and the other end is slidingly hingedly connected to the second cylinder assembly 200. The number of the second connecting rods 410 can also be greater than or equal to two, and each second connecting rod 410 is arranged at intervals along the circumference of the first cylinder assembly 100. Thus, based on the foregoing arrangement, the hydrogen storage container can be connected between the first cylinder assembly 100 and the second cylinder assembly 200 through the plurality of first connecting rods 310 and the plurality of second connecting rods 410, which is conducive to further improving the stability of the first cylinder assembly 100 and reducing the possibility of large-scale movement of the first cylinder assembly 100 in the vacuum cavity 201, thereby providing further protection for the safe storage and transportation of hydrogen.

[0074] As shown in the example, Figure 1 The number of the first connecting rods 310 and the second connecting rods 410 can both be two. The two first connecting rods 310 can be hingedly connected to the same axial position of the first cylinder assembly 100, the two second connecting rods 410 can be hingedly connected to the same axial position of the second cylinder assembly 200, and the axial position of the first connecting rods 310 is different from the axial position of the second connecting rods 410. The included angle of the two first connecting rods 310 along the circumference of the first cylinder assembly 100 can be 180° to form uniform arrangement along the circumference of the first cylinder assembly 100. Correspondingly, the included angle of the two second connecting rods 410 along the circumference of the first cylinder assembly 100 can also be 180°, which is conducive to further ensuring the installation stability and reliability of the first cylinder assembly 100 based on the foregoing arrangement.

[0075] As shown in the example, Figure 2 In some examples, the first connecting rod 310 includes two first lugs 311, one of the two first lugs 311 is arranged on the first cylinder assembly 100, and the other is arranged on the second cylinder assembly 200. The first connecting rod 312 is hingedly connected to one of the two first lugs 311 at one end and hingedly connected to the other of the two first lugs 311 at the other end. The first heat insulation baffle 313 is arranged between the first connecting rod 312 and the first lug 311.

[0076] In the technical solution, the first connecting rod part 310 can include a first lug 311, a first connecting rod 312 and a first heat insulation lining 313, wherein the number of the first lugs 311 is two, one first lug 311 is arranged on the first cylinder assembly 100, and the other first lug 311 is arranged on the second cylinder assembly 200, the first connecting rod 312 is hinged to the first lug 311, so that the first connecting rod part 310 can constrain the position of the first cylinder assembly 100 in the vacuum cavity 201 and facilitate the deformation of the first cylinder assembly 100 by rotating; the first heat insulation lining 313 is arranged between the first lug 311 and the first connecting rod 312, so as to reduce the heat conduction efficiency between the first cylinder assembly 100 and the second cylinder assembly 200 through the first connecting assembly 300, facilitate further reducing the heat exchange between the first cylinder assembly 100 and the second cylinder assembly 200, and facilitate further maintaining the temperature stability of the first cylinder assembly 100 and the liquid hydrogen, and reducing the risk of leakage of the first cylinder assembly 100.

[0077] It can be understood that the number of the first heat insulation linings 313 is also two, and each first lug 311 corresponds to a first heat insulation lining 313.

[0078] It can be understood that the first heat insulation lining 313 can be made of a non-metallic material with low thermal conductivity, for example, can be made of glass steel.

[0079] Exemplarily, as shown in Figure 2 The first connecting rod 312 can 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 number of the first connecting rod body 3121, the first shaft seat 3122 and the first pin shaft 3123 is two, the first connecting rod body 3121 is provided with external threads, the first threaded sleeve 3124 is provided with internal threads, and the two ends of the first threaded sleeve 3124 are respectively threadedly connected with one first connecting rod body 3121, the end of each first connecting rod body 3121 away from the first threaded sleeve 3124 is connected with one first shaft seat 3122, and each first shaft seat 3122 is provided with one first pin shaft 3123, and the first pin shaft 3123 is hinged to the first lug 311; so based on the foregoing arrangement, during the installation of the first cylinder assembly 100 in the vacuum cavity 201, the distance between the two first shaft seats 3122 can be adjusted by rotating the first connecting rod body 3121 to adapt to the size difference between the first cylinder assembly 100 and the second cylinder assembly 200 during installation, which is conducive to improving the assembly convenience of the hydrogen storage container and ensuring the spacing between the first cylinder assembly 100 and the second cylinder assembly 200. Accordingly, the aforementioned first heat insulation lining 313 can be sleeved on the aforementioned first pin shaft 3123 and located between the first lug 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 lugs 411, one of which is disposed on the first cylindrical assembly 100 and the other is disposed on the second cylindrical assembly 200; a second connecting rod 412, one end of which is hinged to one of the two second lifting lugs 411 disposed on the first cylindrical assembly 100, and the other end is slidably hinged to one of the two second lifting lugs 411 disposed on the second cylindrical assembly 200; and a second heat insulation liner 413 disposed between the second connecting rod 412 and the second lifting lug 411.

[0081] In this technical solution, the second connecting rod portion 410 may include a second lifting lug 411, a second connecting rod 412, and a second heat insulation liner 413. There are two second lifting lugs 411: one is located on the first cylinder assembly 100, and the other on the second cylinder assembly 200. One end of the second connecting rod 412 is hinged to the second lifting lug 411 on the first cylinder assembly 100, and the other end is slidably hinged to the second lifting lug 411 on the second cylinder assembly 200. Thus, the second connecting rod portion 410 can constrain the second cylinder assembly 200. The position of 00 within the vacuum chamber 201 facilitates adaptation to the deformation of the first cylindrical assembly 100 by rotation and / or sliding; the second heat insulation liner 413 is disposed between the aforementioned second lifting lug 411 and second connecting rod 412, thereby reducing the efficiency of heat conduction between the first cylindrical assembly 100 and the second cylindrical assembly 200 through the second connecting assembly 400, which is beneficial to further reduce the heat exchange between the first cylindrical assembly 100 and the second cylindrical assembly 200, and to further maintain the temperature stability of the first cylindrical assembly 100 and liquid hydrogen, thereby reducing the risk of leakage of the first cylindrical assembly 100.

[0082] It is understandable that there are also two second heat insulation lining plates 413, with each second lug 411 corresponding to one second heat insulation lining plate 413.

[0083] Understandably, the second thermal insulation liner 413 can be made of a non-metallic material with low thermal conductivity, such as fiberglass.

[0084] For example, such as Figure 3As shown, the second connecting rod 412 can 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 is two, the second connecting rod body 4121 is provided with external threads, the second threaded sleeve 4124 is provided with internal threads, and the two ends of the second threaded sleeve 4124 are respectively threadedly connected with one second connecting rod body 4121. One end of each second connecting rod body 4121 away from the second threaded sleeve 4124 is connected with one second shaft seat 4122, and each second shaft seat 4122 is provided with one second pin shaft 4123. One of the two second pin shafts 4123 is hinged to the second lug 411 provided on the first cylinder assembly 100, and the other of the two second pin shafts 4123 is slidingly hinged to the second lug 411 provided on the second cylinder assembly 200 through the aforementioned long circular hole 4125. Thus, based on the aforementioned arrangement, during the installation of the second cylinder assembly 200 in the vacuum cavity 201, the distance between the two second shaft seats 4122 can be adjusted by rotating the second connecting rod body 4121 to adapt to the size difference between the first cylinder assembly 100 and the second cylinder assembly 200 during installation, which is beneficial to improve the assembly convenience of the hydrogen storage container and ensure the spacing between the first cylinder assembly 100 and the second cylinder assembly 200. Correspondingly, the aforementioned second heat insulation lining plate 413 can be sleeved on the aforementioned second pin shaft 4123 and located between the second lug 411 and the second shaft seat 4122.

[0085] As shown, Figure 1 In some examples, the first cylinder assembly 100 includes a first cylinder body 110, a first head 120, and a shaft lug 130. The first cylinder body 110 is connected with one first head 120 at each axial end, and the first head 120 and the first cylinder body 110 enclose a hydrogen storage cavity 101. Each first head 120 is provided with one shaft lug 130, and the first connecting assembly 300 and the second connecting assembly 400 are respectively hinged to different shaft lugs 130.

[0086] In the technical solution, the first cylinder assembly 100 can include a first cylinder body 110, two first heads 120, and shaft ears 130. The first cylinder body 110 has one first head 120 connected to each end thereof to form the aforementioned hydrogen storage cavity 101 with the first head 120. It can be understood that the first cylinder body 110 and the first head 120 form the main part of the first cylinder assembly 100. Each first head 120 is provided with a shaft ear 130, i.e., the number of shaft ears 130 is two. The first cylinder assembly 100 can be hingedly connected to the first connecting assembly 300 and the second connecting assembly 400 through the two aforementioned shaft ears 130, so as to facilitate the first connecting assembly 300 and the second connecting assembly 400 to avoid the main part of the first cylinder assembly 100, expand the installation space of the first connecting assembly 300 and the second connecting assembly 400, and facilitate the hydrogen storage container to adopt the first connecting assembly 300 and the second connecting assembly 400 with a larger length, thereby further reducing the heat conduction efficiency between the first cylinder assembly 100 and the second cylinder assembly 200 through the second connecting assembly 400, reducing the heat exchange between the first cylinder assembly 100 and the second cylinder assembly 200, stabilizing the temperature of the first cylinder assembly 100 and liquid hydrogen, reducing the shrinkage deformation of the first cylinder assembly 100 due to temperature change, and further improving the safety and reliability of the liquid storage container.

[0087] It can be understood that the aforementioned first cylinder body 110 can be a hollow cylindrical structure with both ends open. The aforementioned first head 120 covers the open end of the first cylinder body 110 to form the aforementioned hydrogen storage cavity 101 with the first cylinder body 110.

[0088] It can be understood that the first head 120 and the shaft ear 130 can be an integral structure, or the shaft ear 130 is welded to the first head 120, so as to ensure the connection reliability between the shaft ear 130 and the first head 120.

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

[0090] As shown in Figure 1 In some examples, the first cylinder assembly 100 further includes a first reinforcing ring 140 arranged on the first cylinder body 110.

[0091] In this technical solution, the first cylindrical assembly 100 may further include a first reinforcing ring 140 disposed on the first cylindrical body 110. It is understood that the first reinforcing ring 140 is arranged circumferentially along the first cylindrical body 110. Based on the aforementioned arrangement, the compressive strength of the first cylindrical assembly 100 can be further improved, the structural reliability of the first cylindrical assembly 100 can be enhanced, and the leakage risk of the first cylindrical assembly 100 can be reduced.

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

[0093] like Figure 1 and Figure 4 As shown, in some examples, the first cylindrical assembly 100 further includes: a vacuum insulation panel 150 covering the first cylindrical body 110 and the first end cap 120, the vacuum insulation panel 150 being located outside the hydrogen storage chamber 101; and a reflective insulation layer 160 covering the vacuum insulation panel 150, the reflective insulation layer 160 being located between the vacuum insulation panel 150 and the second cylindrical assembly 200, with a gap formed between the reflective insulation layer 160 and the second cylindrical assembly 200.

[0094] In this technical solution, the first cylindrical assembly 100 may further include a vacuum insulation plate 150 and a reflective insulation layer 160. The vacuum insulation plate 150 covers the outer walls of the first cylindrical body 110 and the first end cap 120. The reflective insulation layer 160 covers the vacuum insulation plate 150 and is located between the vacuum insulation plate 150 and the second cylindrical assembly 200, with a gap between the reflective insulation layer 160 and the second cylindrical assembly 200. Based on the aforementioned arrangement, on the one hand, the hydrogen storage container can utilize the vacuum insulation plate 150 in conjunction with the vacuum chamber 201 to further enhance the vacuum insulation effect on the first cylindrical assembly 100 and reduce external environmental stress. The hydrogen storage container can reduce convective heat transfer between the external environment and the first cylindrical assembly 100 by using the reflective insulation layer 160. This further limits the heat transfer mode between the external environment and the first cylindrical assembly 100, reduces the possibility of temperature fluctuations in the first cylindrical assembly 100 and liquid hydrogen, and prevents the first cylindrical assembly 100 from deforming significantly due to temperature changes. This is beneficial to further improve the reliability and safety of the first cylindrical assembly 100, reduce the probability of leakage of the first cylindrical assembly 100, and provide further protection for the safe storage and transportation of hydrogen.

[0095] It is understood that the reflective insulation layer 160 can be a multi-layered structure. For example, it may include multiple stacked reflective screens and spacer material disposed between adjacent reflective screens. The reflective screens may be highly reflective metal flakes or thin films with a metal coating. The spacer material may be made of insulation material to prevent direct contact between adjacent reflective screens. The reflective screens 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 mesh.

[0096] In some feasible examples, the vacuum insulation panel 150 can be a flexible vacuum insulation panel, which helps to enhance the deformation capacity of the vacuum insulation panel 150, thereby improving the fit between the vacuum insulation panel 150 and the first cylindrical assembly 100, and thus enhancing the thermal insulation effect. It is understood that the flexible vacuum insulation panel may include thermal insulation material, a surface membrane, and a gas adsorption material, wherein the gas adsorption material and the thermal insulation material are filled within the surface membrane; the interior of the surface membrane is a vacuum environment; the thermal insulation material is typically a porous material, such as powdered silica, aerogel, or open-cell polyester, which serves both as structural support and as a means to suppress heat conduction and convection; the gas adsorption material may include a getter and a desiccant to adsorb gases released by the thermal insulation material and the surface membrane 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 lug 130 can be set to be less than or equal to 400mm, thereby avoiding the lug 130 being too thick and reducing the shrinkage and expansion deformation of the lug 130 due to temperature changes, which in turn helps to further improve the structural stability and positional stability of the first cylinder assembly 100.

[0099] like Figure 1 and Figure 5 As shown, in some examples, the second cylindrical assembly 200 includes: a second cylindrical body 210, with the first connecting assembly 300 and the second connecting assembly 400 both hinged to the inner peripheral wall of the second cylindrical body 210; a second end cap 220, with a second end cap 220 connected to each of the two ends of the second cylindrical body 210 in the axial direction, the second end cap 220 and the second cylindrical body 210 forming a vacuum cavity 201; and a support portion 240, disposed on the inner peripheral wall of the second cylindrical body 210, with the first cylindrical assembly 100 abutting against the support portion 240.

[0100] In this technical solution, the second cylindrical assembly 200 may include a second cylindrical body 210 and two first end caps 120. Each end of the second cylindrical body 210 is connected to a second end cap 220 to form the aforementioned vacuum cavity 201. The support portion 240 is disposed on the inner peripheral wall of the second cylindrical body 210 and is used to abut against the first cylindrical assembly 100, thereby further constraining the degree of freedom of the first cylindrical assembly 100 in the vacuum cavity 201, improving the stability of the first cylindrical assembly 100, and reducing the risk of damage and leakage of the first cylindrical assembly 100.

[0101] It is understood that the aforementioned second cylindrical body 210 can be a cylindrical structure with open ends and a hollow interior. The aforementioned second end cap 220 covers the open ends of the second cylindrical body 210 to form the aforementioned vacuum cavity 201 with the second cylindrical 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 cylindrical body 210, and an installation groove is formed between the baffle 242 and the second cylindrical body 210. 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-metallic material with low thermal conductivity, for example, it can be made of fiberglass.

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

[0105] In this technical solution, the second cylindrical assembly 200 may further include a second reinforcing ring 230 disposed on the second cylindrical body 210. It is understood that the second reinforcing ring 230 is arranged circumferentially along the second cylindrical body 210. Based on the aforementioned arrangement, the compressive strength of the second cylindrical assembly 200 can be further improved, the structural reliability of the second cylindrical assembly 200 can be enhanced, and the probability of damage to the second cylindrical assembly 200 can be reduced, which is conducive to further extending the service life of the hydrogen storage container.

[0106] In some feasible examples, the second reinforcing ring 230 can be a steel external pressure reinforcing 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 further comprises: a first connecting pipe 500, penetrating the second head 220, one end of the first connecting pipe 500 being communicated with the hydrogen storage cavity 101, and the part of the first connecting pipe 500 located in the vacuum cavity 201 having a plurality of bending portions 510; a second connecting pipe 600, penetrating the first cylinder assembly 100 and the second cylinder body 210, and part of the second connecting pipe 600 being located outside the second cylinder body 210; and a bellows 700, sleeved on the part of the second connecting pipe 600 located outside the second cylinder body 210.

[0108] In the technical scheme, the hydrogen storage container can further comprise the first connecting pipe 500, the second connecting pipe 600 and the bellows 700, wherein the first connecting pipe 500 penetrates the second head 220 and one end of the first connecting pipe 500 is communicated with the hydrogen storage cavity 101, so that in actual application, the first connecting pipe 500 can be used for liquid hydrogen input or output operation of the liquid container, so as to facilitate hydrogen storage and supply. It can be understood that since the first connecting pipe 500 is communicated with the hydrogen storage cavity 101 and penetrates the second head 220, the first connecting pipe 500 has a part located in the vacuum cavity 201, and accordingly, the part of the first connecting pipe 500 located in the vacuum cavity 201 has a plurality of bending portions 510, so that the first connecting pipe 500 has higher flexibility, which is beneficial to absorbing the thermal stress of the first cylinder assembly 100 and the second cylinder assembly 200 and adapting to the shrinkage and expansion deformation of the first cylinder assembly 100 and the second cylinder assembly 200, which is beneficial to further reducing the possibility of leakage of the hydrogen storage container and prolonging the service life of the first connecting pipe 500.

[0109] It can be understood that, as shown in Figure 1 and Figure 7 , the part of the first connecting pipe 500 located in the vacuum cavity 201 has a plurality of bending portions 510, that is, the part of the first connecting pipe 500 located in the vacuum cavity 201 can have a plurality of pipe segments communicated in sequence, the extension directions of the pipe segments are different from each other, the adjacent pipe segments are connected through the bending portions 510, the axis directions of the pipe segments can be located in the same plane or different planes, which can be specifically set according to the requirements in actual application. Exemplarily, the first connecting pipe 500 can be a π-shaped compensator or a bidirectional π-shaped compensator.

[0110] The second connecting pipe 600 is arranged in the first cylinder assembly 100 and the second cylinder body 210, and part of the second connecting pipe 600 is located outside the second cylinder body 210. In actual application, the second connecting pipe 600 can be used as a test interface, for example, for connecting a pressure measuring device, a liquid level measuring device, etc. The bellows 700 is arranged on the part of the second connecting pipe 600 located outside the second cylinder body 210, so as to compensate for the temperature difference stress of the second cylinder body 210 and the second connecting pipe 600, and further reduce the leakage probability of the hydrogen storage container.

[0111] Exemplarily, as shown in Figure 6 The hydrogen storage container can further include a sleeve 800 arranged outside the second cylinder body 210 and sleeved on the part located outside the second cylinder body 210, and the bellows 700 is arranged on the sleeve 800.

[0112] In the present disclosure, the terms "first", "second", "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance; the term "multiple" refers to two or more, unless otherwise explicitly limited. The terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, "connection" can be fixed connection, or detachable connection, or integral connection; "connection" can be direct connection, or indirect connection through an intermediate medium. For those skilled in the art, the specific meaning 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 should be understood that the terms "upper", "lower", "left", "right", "front", "back" and the like indicate the orientation or positional relationship shown in the drawings, and are only used for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the devices or units referred to must have a specific direction, be constructed and operated in a specific orientation, therefore, cannot be understood as a limitation on the present disclosure.

[0114] In the description of the present disclosure, the terms "one embodiment", "some embodiments", "a specific embodiment" and the like mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present disclosure. In the present specification, the illustrative description 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 merely preferred embodiments of the present disclosure and are not intended to limit the present disclosure. For those skilled in the art, the present disclosure can have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present disclosure shall fall into the protection scope of the present disclosure.

Claims

1. A hydrogen storage container, characterized by, Comprise: A first cylinder assembly, which forms a hydrogen storage cavity; A second cylinder assembly, which forms a vacuum cavity, the first cylinder assembly is arranged in the vacuum cavity, and a space is formed between the second cylinder assembly and the first cylinder assembly; A first connecting assembly, one end of which is hinged to the first cylinder assembly, and the other end is hinged to the second cylinder assembly; A second connecting assembly, one end of which is hinged to the first cylinder assembly, and the other end is slidingly hinged to the second cylinder assembly; Wherein, along the axial direction of the first cylinder assembly, the first connecting assembly and the second connecting assembly are arranged at intervals; The first connecting assembly comprises at least two first connecting rods, which are arranged at intervals along the circumferential direction of the first cylinder assembly, one end of the first connecting rod is hinged to the first cylinder assembly, and the other end is hinged to the second cylinder assembly; The first connecting rod comprises: Two first lugs, one of which is arranged on the first cylinder assembly, and the other is arranged on the second cylinder assembly; A first connecting rod, one end of which is hinged to one of the two first lugs, and the other end is hinged to the other of the two first lugs; A first heat insulation baffle is arranged between the first connecting rod and the first lug; The second connecting assembly comprises at least two second connecting rods, which are arranged at intervals along the circumferential direction of the first cylinder assembly, one end of the second connecting rod is hinged to the first cylinder assembly, and the other end is slidingly hinged to the second cylinder assembly; The second connecting rod comprises: Two second lugs, one of which is arranged on the first cylinder assembly, and the other is arranged on the second cylinder assembly; A second connecting rod, one end of which is hinged to one of the two second lugs arranged on the first cylinder assembly, and the other end is slidingly hinged to one of the two second lugs arranged on the second cylinder assembly; A second heat insulation baffle is arranged between the second connecting rod and the second lug.

2. The hydrogen storage container of claim 1, wherein The first cylinder assembly comprises: A first cylinder body; A first head, one of which is connected to each end of the first cylinder body in the axial direction, and the first head and the first cylinder body form the hydrogen storage cavity; An axle lug, each first head is provided with an axle lug, and the first connecting assembly and the second connecting assembly are respectively hinged to different axle lugs.

3. The hydrogen storage container of claim 2, wherein, The first cylinder assembly further comprises: A first reinforcing ring arranged on the first cylinder body.

4. The hydrogen storage container of claim 2, wherein, The first cylinder assembly further comprises: A vacuum heat insulation board covering the first cylinder body and the first head, the vacuum heat insulation board is located outside the hydrogen storage cavity; A reflective insulation layer covering the vacuum heat insulation board, the reflective insulation layer is located between the vacuum heat insulation board and the second cylinder assembly, and a space is formed between the reflective insulation layer and the second cylinder assembly.

5. The hydrogen storage container according to claim 2, wherein The diameter of the axle lug is less than or equal to 400 mm.

6. The hydrogen storage container of claim 1, wherein, The second cylinder assembly comprises: The second cylinder body, the first connecting assembly and the second connecting assembly are hinged to the inner circumferential wall of the second cylinder body; The second cylinder body is connected with one second end cover at each axial end, and the second end cover and the second cylinder body enclose the vacuum cavity; The support portion is arranged on the inner circumferential wall of the second cylinder body, and the first cylinder assembly abuts against the support portion.

7. The hydrogen storage container of claim 6, wherein, The second cylinder assembly comprises: The second reinforcing ring is arranged on the second cylinder body.

8. The hydrogen storage container of claim 7, wherein, Further comprising: The first connecting pipe is arranged in the second end cover, one end of the first connecting pipe is communicated with the hydrogen storage cavity, and the part of the first connecting pipe located in the vacuum cavity has a plurality of bending portions; The second connecting pipe is arranged in the first cylinder assembly and the second cylinder body, and part of the second connecting pipe is located outside the second cylinder body; The bellows is sleeved on the part of the second connecting pipe located outside the second cylinder body.

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