A modular container for storing solid materials

Abstract

The present invention relates to the technical field of solid material storage containers, and in particular to a modular container for storing solid materials, comprising an external frame and a tank body arranged inside the external frame, wherein a plurality of hydrogen storage bags for storing hydrogen are arranged inside the tank body, and the plurality of hydrogen storage bags are arranged in sequence along the axial direction of the tank body; the hydrogen storage bag comprises a storage cylinder, a hydrogen storage material block and two end caps, wherein the two end caps are respectively arranged at the two ends of the storage cylinder, and the storage cylinder cooperates with the two end caps to form a sealed space for accommodating the hydrogen storage material block; the hydrogen storage bag also comprises a heat conducting plate embedded inside the hydrogen storage material block, the heat conducting plate is used to transport hydrogen, and heat the hydrogen and the hydrogen storage material block; the heat conducting plate extends from the middle of the hydrogen storage material block along a rotating path to the edge of the hydrogen storage material block. The present invention realizes modular storage of hydrogen inside the container, and improves the heating efficiency and heating uniformity of the hydrogen storage material block.

Description

Technical Field

[0001] The invention relates to the technical field of solid material storage containers, and in particular to a modular container for storing solid materials. Background Art

[0002] Among solid-state storage materials, solid-state hydrogen storage refers to storing hydrogen in solid materials by utilizing the chemical adsorption of hydrogen by the material, that is, storing solid-state materials that have adsorbed hydrogen energy.

[0003] In the chemical adsorption mechanism, hydrogen is generally combined with other elements by ionic bonds or covalent bonds to form materials such as metal hydrides, which can reversibly absorb and release hydrogen under certain conditions. Compared with other hydrogen storage methods, the two most significant advantages of solid-state hydrogen storage are high volumetric hydrogen storage density and good safety performance. Solid-state hydrogen storage has a very high volumetric hydrogen storage density. Taking MgH2 hydrogen storage as an example, its volumetric hydrogen storage density can reach 106kg·m3, which is 119 times the density of hydrogen under standard conditions, 2.7 times that of 70MPa high-pressure hydrogen storage, and 1.5 times that of liquid hydrogen.

[0004] A tank container is a container for storing solid hydrogen storage materials. The current storage method is to sinter the solid hydrogen storage material into a block-shaped overall structure according to the actual inner cavity shape and size of the tank container, and then encapsulate the solid hydrogen storage material block inside the tank container. However, precisely because the current solid hydrogen storage materials are directly stored inside the tank container, there are still certain shortcomings in the current use of tank containers to achieve solid-state storage of hydrogen: since solid hydrogen storage materials need to be heated to a certain extent when storing and releasing hydrogen, the heating efficiency and heating uniformity of the solid hydrogen storage material blocks currently stored in the tank container are poor. Therefore, a modular container for storing solid materials is proposed to realize the modularization of solid hydrogen storage containers and solve the above technical problems. Summary of the invention

[0005] The object of the present invention is to provide a modular container for storing solid materials to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a modular container for storing solid materials, comprising an external frame and a tank body arranged inside the external frame, wherein a plurality of hydrogen storage bags for storing hydrogen are arranged inside the tank body, and the plurality of hydrogen storage bags are arranged in sequence along the axial direction of the tank body;

[0007] The hydrogen storage package includes a storage cylinder, a hydrogen storage material block and two seals, wherein the two seals are respectively arranged at two ends of the storage cylinder, and the storage cylinder cooperates with the two seals to form a sealed space for accommodating the hydrogen storage material block;

[0008] The hydrogen storage package also includes a heat conducting plate embedded in the hydrogen storage material block, the heat conducting plate is used to transport hydrogen and heat the hydrogen and the hydrogen storage material block;

[0009] The heat conducting plate extends from the middle of the hydrogen storage material block along a rotating path toward the edge of the hydrogen storage material block, and finally passes through the cylinder wall of the storage cylinder in a sealed manner to be communicated with the main delivery pipe.

[0010] Preferably, the width of the heat conducting plate in the axial direction of the tank body is equal to the thickness of the hydrogen storage material block in the axial direction of the tank body.

[0011] Preferably, the heat conducting plate is spiral-shaped, one end of the heat conducting plate is located in the middle of the hydrogen storage material block, and the other end of the heat conducting plate is fixedly connected to the main delivery pipe.

[0012] Preferably, an air flow channel and a heating wire are provided inside the heat conducting plate, and a through hole connected to the air flow channel is provided on the outer surface of the heat conducting plate;

[0013] The air flow channel is connected with the main delivery pipe;

[0014] The heating wire is electrically connected to the power supply.

[0015] Preferably, the air flow channel is connected to the main delivery pipe through the auxiliary delivery pipe;

[0016] The auxiliary delivery pipe is fixed between the main delivery pipe and the heat conduction plate.

[0017] Preferably, the sealing head comprises a fixed cylinder, a piston and an annular plate, and a connecting rod which slides through the hydrogen storage material block is fixedly connected between the two pistons;

[0018] The two fixing tubes are coaxially fixed at two ends of the storage tube, and the fixing tubes are connected with the storage tube;

[0019] The annular plate is fixed to one end of the fixed cylinder away from the storage cylinder;

[0020] A first chamber is formed between the piston and the hydrogen storage material block, and a second chamber is formed between the piston and the annular plate. One of the second chambers is connected to the internal space of the tank body through the adjacent annular plate, and the other second chamber is sealed and connected to the high-pressure air pipe through a sealing cover.

[0021] Preferably, a porous plate is provided inside the first chamber, the periphery of the porous plate is fixedly connected to the fixing cylinder, and the porous plate is abutted against the hydrogen storage material block.

[0022] Preferably, the top of the tank body is recessed outward to form a long strip-shaped accommodating cavity, the main delivery pipe is arranged inside the accommodating cavity, and one end of the main delivery pipe extends through to the outside of the tank body.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. The present invention divides the hydrogen storage materials originally stacked inside the tank into multiple hydrogen storage bags, realizing modular storage of hydrogen inside the container. The hydrogen storage bags can be industrially produced, making it convenient to equip a suitable number of hydrogen storage bags according to the actual length of the tank. At the same time, each hydrogen storage material block in each hydrogen storage bag is equipped with a heat conduction plate for transporting hydrogen and heating hydrogen and hydrogen storage material blocks, thereby improving the heating efficiency and heating uniformity of the hydrogen storage material blocks.

[0025] 2. When storing hydrogen, the main delivery pipe distributes external hydrogen to various positions of the hydrogen storage material block through the air flow channel and the through hole. In this process, on the one hand, the heating wire can heat the heat conduction plate and rely on the heat conduction plate to complete the heating of the hydrogen storage material block. Moreover, the heat conduction plate is spiral-shaped, and the heating of the hydrogen storage material block is more efficient and uniform. On the other hand, the cooperation of the air flow channel and the through hole can use the spiral heat conduction plate to quickly transport hydrogen to various positions inside the hydrogen storage material block, accelerate the reaction speed between the hydrogen storage material block and hydrogen, and improve the efficiency of hydrogen storage. At the same time, since the air flow channel and the through hole are both arranged on the heat conduction plate, the heating wire will also heat the hydrogen in the air flow channel during the process of heating the heat conduction plate, that is, the hydrogen discharged through multiple through holes contains a certain amount of heat. The hydrogen can also heat the hydrogen storage material block during the process of being transported to various positions inside the hydrogen storage material block, further improving the heating efficiency and heating uniformity of the hydrogen storage material block. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of the present invention;

[0027] Figure 2 It is a schematic diagram of the cross-sectional three-dimensional structure of the tank body of the present invention;

[0028] Figure 3 It is a schematic diagram of the three-dimensional structure of the hydrogen storage package of the present invention;

[0029] Figure 4 It is a left-side structural schematic diagram of the hydrogen storage package of the present invention;

[0030] Figure 5 It is a right side structural schematic diagram of the hydrogen storage package of the present invention;

[0031] Figure 6 It is a front view structural schematic diagram of the hydrogen storage package of the present invention;

[0032] Figure 7 It is a schematic diagram of the cross-sectional three-dimensional structure of the hydrogen storage package of the present invention;

[0033] Figure 8 It is a schematic diagram of the front cross-sectional structure of the hydrogen storage package of the present invention;

[0034] Fig. 9 It is a right side structural schematic diagram of the heat conducting plate and the hydrogen storage material block of the present invention;

[0035] Fig.10 It is a front view structural schematic diagram of the heat conducting plate of the present invention;

[0036] Fig.11 For the present invention Fig. 9 A schematic diagram of the enlarged structure of the cross-section at the center;

[0037] Fig.12 For the present invention Fig.10 Schematic diagram of the enlarged cross-section structure at point B in the middle.

[0038] In the figure: 1. external frame; 2. tank body; 21. accommodating chamber; 3. hydrogen storage bag; 31. main delivery pipe; 32. storage cylinder; 33. heat conduction plate; 331. auxiliary delivery pipe; 332. air flow channel; 333. heating wire; 334. through hole; 34. hydrogen storage material block; 35. head; 3501. fixed cylinder; 3502. piston; 3503. annular plate; 3504. first chamber; 3505. second chamber; 3506. sealing cover; 3507. high-pressure air pipe; 3508. porous plate; 3509. connecting rod. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] See also Figure 1-Figure 12 , the present invention provides a technical solution:

[0041] A modular container for storing solid materials comprises an external frame 1 and a tank body 2 arranged inside the external frame 1. The external frame 1 and the tank body 2 cooperate to form a tank container in the prior art.

[0042] In this embodiment, Figure 2 As shown, a plurality of hydrogen storage bags 3 for storing hydrogen are arranged inside the tank body 2 , and the plurality of hydrogen storage bags 3 are arranged in sequence along the axial direction of the tank body 2 .

[0043] The specific structure of the hydrogen storage bag 3 and the specific hydrogen storage method are introduced below.

[0044] As shown Figure 3-Figure 12As shown, the hydrogen storage package 3 includes a storage cylinder 32, a hydrogen storage material block 34 and two heads 35. In this embodiment, the storage cylinder 32 is limited to a cylindrical shape. Of course, in actual use, its shape and size can also be adaptively adjusted according to actual conditions, wherein the two heads 35 are respectively arranged at the two ends of the storage cylinder 32, and the storage cylinder 32 and the two heads 35 cooperate to form a sealed space for accommodating the hydrogen storage material block 34; specifically, the fixed connection method between the head 35 and the storage cylinder 32 is not limited. In this embodiment, the two heads 35 can be fixedly connected to the two ends of the storage cylinder 32 by flange connection. The advantage of flange connection is that the sealing performance is good and it is easy to disassemble and install.

[0045] like Figure 3-Figure 12 As shown, the hydrogen storage package 3 further includes a heat conducting plate 33 embedded in the hydrogen storage material block 34, and the heat conducting plate 33 is used to transport hydrogen and heat the hydrogen and the hydrogen storage material block 34; specifically, the heat conducting plate 33 can be made of metal material, such as copper. The specific manner in which the heat conducting plate 33 transports hydrogen and heats the hydrogen and the hydrogen storage material block 34 will be described in detail below.

[0046] like Figure 7-Figure 9 As shown, the heat conducting plate 33 extends from the middle of the hydrogen storage material block 34 along a rotating path to the edge of the hydrogen storage material block 34, and finally passes through the wall of the storage cylinder 32 in a sealed manner and communicates with the main delivery pipe 31. The heat conducting plate 33 passes through the wall of the storage cylinder 32 in a sealed manner, which means that the heat conducting plate 33 passes through the wall of the storage cylinder 32 and is in a sealed connection with the wall of the storage cylinder 32, thereby avoiding dangerous situations such as hydrogen leakage. The main delivery pipe 31 is used to transport the hydrogen outside the tank body 2 to the inside of each hydrogen storage bag 3, or to transport the hydrogen released by each hydrogen storage bag 3 to the outside of the tank body 2.

[0047] The working principle of the technical solution of this embodiment is as follows: during the hydrogen storage process, the hydrogen outside the tank body 2 is transported to the inside of each hydrogen storage bag 3 through the main delivery pipe 31 and the heat conducting plate 33, and the hydrogen storage material block 34 is heated to the temperature range of hydrogen storage by the heat conducting plate 33, so that a chemical reaction occurs between the hydrogen and the hydrogen storage material block 34, thereby completing the storage of hydrogen; during the process of releasing hydrogen, the heat conducting plate 33 is used to heat the hydrogen storage material block 34 to the temperature range of hydrogen release, and the stored hydrogen can be released through the main delivery pipe 31 and the heat conducting plate 33.

[0048] The technical effect achieved by the above scheme is: the hydrogen storage materials originally stacked inside the tank body 2 are divided into multiple hydrogen storage bags 3, so as to realize modular storage of hydrogen inside the container, and the hydrogen storage bags 3 can be industrially produced, so as to facilitate the provision of a suitable number of hydrogen storage bags 3 according to the actual length of the tank body 2. At the same time, each hydrogen storage material block 34 in each hydrogen storage bag 3 is equipped with a heat conducting plate 33 for transporting hydrogen and heating hydrogen and hydrogen storage material blocks 34, so as to improve the heating efficiency and heating uniformity of the hydrogen storage material blocks 34.

[0049] In this embodiment, the width of the heat conducting plate 33 in the axial direction of the tank body 2 is equal to the thickness of the hydrogen storage material block 34 in the axial direction of the tank body 2. That is, in the axial direction of the tank body 2, the heat conducting plate 33 just penetrates the hydrogen storage material block 34, thereby increasing the heat transfer area of ​​the heat conducting plate 33 and facilitating the installation of the hydrogen storage material block 34. Specifically, during sintering, a groove structure for the heat conducting plate 33 to be inserted can be reserved on the hydrogen storage material block 34.

[0050] Further, such as Figure 7 and Fig. 9 As shown, the heat conducting plate 33 is spiral-shaped, one end of the heat conducting plate 33 is located in the middle of the hydrogen storage material block 34 , and the other end of the heat conducting plate 33 is fixedly connected to the main delivery pipe 31 .

[0051] As shown Figure 3-Figure 12 As shown, an air flow channel 332 and a heating wire 333 are provided inside the heat conducting plate 33, and a through hole 334 connected to the air flow channel 332 is opened on the outer surface of the heat conducting plate 33; the air flow channel 332 is connected to the main delivery pipe 31; and the heating wire 333 is electrically connected to the power supply.

[0052] The actual working principle is: when storing hydrogen, the main delivery pipe 31 distributes external hydrogen to various positions of the hydrogen storage material block 34 through the air flow channel 332 and the through hole 334. In this process, the heating wire 333 heats the hydrogen in the air flow channel 332 while heating the heat conducting plate 33. The heated hydrogen then escapes to various positions of the hydrogen storage material block 34 through the through hole 334. The combination of the two can further improve the heating efficiency and heating uniformity of the hydrogen storage material block 34.

[0053] like Figure 1-Figure 12 As shown, the air flow channel 332 is connected to the main delivery pipe 31 through the auxiliary delivery pipe 331; the auxiliary delivery pipe 331 is fixed between the main delivery pipe 31 and the heat conduction plate 33.

[0054] like Figure 3-Figure 12As shown, the head 35 includes a fixed cylinder 3501, a piston 3502 and an annular plate 3503, and a connecting rod 3509 is fixedly connected between the two pistons 3502 and slides through the hydrogen storage material block 34; wherein, the inner diameter of the fixed cylinder 3501 is the same as the inner diameter of the storage cylinder 32, and the two are sealed and fixedly connected by a flange, and the piston 3502 is slidably arranged inside the fixed cylinder 3501. Due to the existence of the connecting rod 3509, when one of the pistons 3502 slides inside the fixed cylinder 3501 corresponding to the piston 3502, the other piston 3502 will also slide synchronously inside the fixed cylinder 3501 corresponding to the other piston 3502.

[0055] like Figure 3-Figure 12 As shown, two fixed cylinders 3501 are coaxially fixed at two ends of the storage cylinder 32, and the fixed cylinder 3501 is connected with the storage cylinder 32. The annular plate 3503 is fixed at one end of the fixed cylinder 3501 away from the storage cylinder 32.

[0056] like Figure 3-Figure 12 As shown, a first chamber 3504 is formed between the piston 3502 and the hydrogen storage material block 34, and a second chamber 3505 is formed between the piston 3502 and the annular plate 3503, wherein one second chamber 3505 is connected to the internal space of the tank body 2 through the annular plate 3503 adjacent thereto, and the other second chamber 3505 is sealed and connected to the high-pressure gas pipe 3507 through the sealing cover 3506.

[0057] The working principle of the above technical solution is as follows: during the hydrogen storage process, the main delivery pipe 31, the air flow channel 332 and the through hole 334 deliver the external hydrogen to the hydrogen storage material block 34 inside the storage cylinder 32. When the air pressure inside the storage cylinder 32 reaches a certain value, in order to ensure the reaction efficiency of hydrogen and the hydrogen storage material block 34 (when storing hydrogen, a suitable air pressure is beneficial to improving the reaction efficiency of hydrogen and the hydrogen storage material block 34) and the safety during the hydrogen storage process, the hydrogen delivery is generally stopped. At this time, an external force is required to make the hydrogen inside the storage cylinder 32 flow; specifically, as Figure 8 As shown, high pressure gas is delivered to another second chamber 3505 through a high pressure gas pipe 3507 to push the piston 3502 adjacent to the other second chamber 3505 to move toward the hydrogen storage material block 34. Due to the presence of the connecting rod 3509, the two pistons 3502 move synchronously. Figure 8In the figure, the two pistons 3502 move to the left synchronously. After the two pistons 3502 move to the left to the maximum stroke, the high-pressure gas pipe 3507 is used to extract the gas in the other second chamber 3505 to form a negative pressure, so that the two pistons 3502 move to the right synchronously. In this way, the hydrogen inside the storage cylinder 32 can flow inside the hydrogen storage material block 34, making the temperature of the hydrogen more uniform. At the same time, it is also beneficial to improve the reaction efficiency between the hydrogen and the hydrogen storage material block 34. The temperature of the hydrogen is more uniform, and the heating of the hydrogen storage material block 34 is also more uniform.

[0058] like Figure 3-Figure 12 As shown, a porous plate 3508 is disposed inside the first chamber 3504, the periphery of the porous plate 3508 is fixedly connected to the fixed cylinder 3501, and the porous plate 3508 is attached to the hydrogen storage material block 34. The arrangement of the porous plates 3508, on the one hand, can limit the position of the hydrogen storage material block 34 by using two porous plates 3508, and on the other hand, it also helps to evenly circulate hydrogen between the two first chambers 3504 and inside the hydrogen storage material block 34, with better uniformity.

[0059] like Figure 1-Figure 2 As shown, the top of the tank body 2 is recessed outward to form a long strip-shaped accommodating chamber 21 , the main delivery pipe 31 is arranged inside the accommodating chamber 21 , and one end of the main delivery pipe 31 extends through and to the outside of the tank body 2 .

[0060] A method for assembling a modular container for storing solid materials, the method is based on the above-mentioned modular container for storing solid materials, and comprises the following steps:

[0061] S1, installing the tank body 2 inside the external frame 1;

[0062] S2, the auxiliary delivery pipes 331 at the top of the plurality of hydrogen storage bags 3 are fixedly connected to the main delivery pipe 31, so that the plurality of hydrogen storage bags 3 are fixedly connected to the main delivery pipe 31 to form an integral hydrogen storage device;

[0063] S3, installing a hydrogen storage device formed by a plurality of hydrogen storage bags 3 and a main delivery pipe 31 into the interior of the tank body 2.

[0064] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A modular container for storing solid materials, comprising an external frame (1) and a tank body (2) arranged inside the external frame (1), characterized in that: A plurality of hydrogen storage bags (3) for storing hydrogen are arranged inside the tank body (2), and the plurality of hydrogen storage bags (3) are arranged in sequence along the axial direction of the tank body (2); The hydrogen storage bag (3) comprises a storage cylinder (32), a hydrogen storage material block (34) and two sealing heads (35), wherein the two sealing heads (35) are respectively arranged at two ends of the storage cylinder (32), and the storage cylinder (32) and the two sealing heads (35) cooperate to form a sealed space for accommodating the hydrogen storage material block (34); The hydrogen storage bag (3) further comprises a heat conducting plate (33) embedded in the hydrogen storage material block (34), wherein the heat conducting plate (33) is used to transport hydrogen and heat the hydrogen and the hydrogen storage material block (34); The heat conducting plate (33) extends from the middle of the hydrogen storage material block (34) along a rotating path toward the edge of the hydrogen storage material block (34), and finally passes through the wall of the storage cylinder (32) in a sealed manner to communicate with the main delivery pipe (31); An air flow channel (332) and a heating wire (333) are provided inside the heat conducting plate (33), and a through hole (334) connected to the air flow channel (332) is provided on the outer surface of the heat conducting plate (33); The air flow channel (332) is connected to the main delivery pipe (31); The heating wire (333) is electrically connected to a power source; The air flow channel (332) is connected to the main delivery pipe (31) through the auxiliary delivery pipe (331); The auxiliary delivery pipe (331) is fixed between the main delivery pipe (31) and the heat conduction plate (33); The sealing head (35) comprises a fixed cylinder (3501), a piston (3502) and an annular plate (3503); a connecting rod (3509) which slides through the hydrogen storage material block (34) is fixedly connected between the two pistons (3502); The two fixed cylinders (3501) are coaxially fixed to the two ends of the storage cylinder (32), and the fixed cylinder (3501) is in communication with the storage cylinder (32); The annular plate (3503) is fixed to one end of the fixed cylinder (3501) away from the storage cylinder (32); A first chamber (3504) is formed between the piston (3502) and the hydrogen storage material block (34), and a second chamber (3505) is formed between the piston (3502) and the annular plate (3503), wherein one of the second chambers (3505) is connected to the internal space of the tank body (2) via the annular plate (3503) adjacent thereto, and the other second chamber (3505) is sealedly connected to the high-pressure gas pipe (3507) via the sealing cover (3506).

2. A modular container for storing solid materials according to claim 1, characterized in that: The width of the heat conducting plate (33) in the axial direction of the tank body (2) is equal to the thickness of the hydrogen storage material block (34) in the axial direction of the tank body (2).

3. A modular container for storing solid materials according to claim 1, characterized in that: The heat conducting plate (33) is spiral-shaped, one end of the heat conducting plate (33) is located in the middle of the hydrogen storage material block (34), and the other end of the heat conducting plate (33) is fixedly connected to the main delivery pipe (31).

4. A modular container for storing solid materials according to claim 1, characterized in that: A porous plate (3508) is arranged inside the first chamber (3504), the periphery of the porous plate (3508) is fixedly connected to the fixed cylinder (3501), and the porous plate (3508) is abutted against the hydrogen storage material block (34).

5. A modular container for storing solid materials according to claim 1, characterized in that: The top of the tank body (2) is recessed outward to form a long strip-shaped accommodating chamber (21); the main delivery pipe (31) is arranged inside the accommodating chamber (21), and one end of the main delivery pipe (31) extends through and to the outside of the tank body (2).

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