Solid hydrogen storage bottle with internal heat exchange coupled heat pipe

Abstract

The invention relates to a solid hydrogen storage bottle with an internal heat exchange coupling heat pipe, which comprises a bottle body, a heat conduction part and a gas guide part, the heat conduction part is movably arranged in the bottle body, and a material storage cavity is formed in the bottle body; the air guide part keeps the material storage cavity communicated with the outside of the bottle body in the moving process; wherein the gas guide part synchronously moves along with the heat conduction part, and the heat conduction part keeps the hydrogen absorption material deviating from the gas guide part in the static process. The heat conduction part is movably arranged in the bottle body, so that when the heat conduction part moves, the hydrogen absorption material is thrown away from the gas guide part, the material cannot escape outwards, smooth flowing of hydrogen is kept, the number of the storage cavities is not limited by the structure, the multiple storage cavities can be arranged, the hydrogen absorption material is fully separated, and the hydrogen absorption effect is improved. And the whole structure keeps a good heat conduction effect on the hydrogen absorption material, and meanwhile, sufficient flow of hydrogen between the inside and the outside is ensured, so that the hydrogen absorption and hydrogen desorption efficiency is effectively ensured.

Description

Technical Field

[0001] This invention relates to solid-state hydrogen storage devices, specifically to a solid-state hydrogen storage cylinder with an internal heat exchange coupling heat pipe. Background Technology

[0002] Solid-state hydrogen storage technology is safer and provides more stable hydrogen storage compared to traditional high-pressure hydrogen storage, but it also involves more complex hydrogen storage structures.

[0003] Based on the above, current solid-state hydrogen storage technology still faces many problems. The most significant issue is that, in order to increase the surface area of ​​the hydrogen-absorbing material, the particles need to be sufficiently fine. However, this can easily clog the pores of the wall of the exhaust channel inside the bottle, resulting in slow hydrogen flow during absorption and release, thus leading to low efficiency in storing and retrieving hydrogen. In addition, when the material inside the bottle is overloaded, the accumulation can cause the material to become excessively thick, which can also hinder the spread of hydrogen inside the material, thus affecting the hydrogen absorption efficiency. At the same time, it can also affect the heat conduction process of the material, so that when heating or cooling operations are performed outside the bottle, the temperature change of the material inside the bottle cannot keep up, resulting in low efficiency in storing and releasing hydrogen. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] To address the technical problems reflected in the background section, the present invention provides the following technical solution:

[0006] A solid-state hydrogen storage cylinder with an internal heat exchange coupling heat pipe, comprising a cylinder body, and:

[0007] A heat-conducting part is movably disposed inside the bottle body and forms a material storage cavity inside the bottle body;

[0008] The air guide section maintains communication between the storage chamber and the outside of the bottle during operation;

[0009] The gas-conducting part moves synchronously with the heat-conducting part, and the heat-conducting part keeps the hydrogen-absorbing material away from the gas-conducting part during the static process.

[0010] As a preferred technical solution for a solid hydrogen storage bottle with an internal heat exchange coupling heat pipe, the heat-conducting part is rotatably arranged inside the bottle, and the gas-conducting part has a gas port located in the storage cavity. The gas-conducting part keeps the gas port open and closed during rotation and stationary processes, respectively, and the hydrogen-absorbing material is deviated from the gas port during centrifugal process in the storage cavity.

[0011] As a preferred technical solution for a solid hydrogen storage bottle with an internal heat exchange coupling heat pipe, multiple storage chambers are arrayed within the bottle body, and the gas inlets are distributed in multiple locations on the gas guide section, respectively located at multiple storage chambers.

[0012] As a preferred technical solution for a solid hydrogen storage cylinder with an internal heat exchange coupling heat pipe, the storage cavity is formed in at least a linear array distribution, and the gas guide extends along the direction of its linear array.

[0013] As a preferred technical solution for a solid hydrogen storage cylinder with an internal heat exchange coupling heat pipe, a gap is formed between the heat-conducting part and the inner wall of the cylinder, and the gas-conducting part extends to the end of the storage cavity array direction.

[0014] As a preferred technical solution for a solid hydrogen storage cylinder with an internal heat exchange coupling heat pipe, the storage cavity further includes at least a ring array distribution, the array axis of which is coaxial with the cylinder body.

[0015] As a preferred technical solution for a solid hydrogen storage cylinder with an internal heat exchange coupling heat pipe, a sealing component is movably provided at the gas port, which cooperates with the suction of the gas guide section, and the sealing component deviates from the gas port during the process of being subjected to centrifugal force.

[0016] As a preferred technical solution for a solid hydrogen storage cylinder with an internal heat exchange coupling heat pipe, it also includes an intermediate heat-conducting component, which is fixedly connected to the heat-conducting part. The intermediate heat-conducting component transfers heat to the heat-conducting part by contacting an external heat-conducting working medium. The intermediate heat-conducting component acquires kinetic energy and rotates as the heat-conducting working medium passes through it.

[0017] As a preferred technical solution for a solid hydrogen storage cylinder with an internal heat exchange coupling heat pipe, the intermediate heat-conducting component includes a heat pipe that is coaxial with the axis of the annular array formed by the multiple storage cavities, and the heat pipe passes through the linear array path formed by the multiple storage cavities.

[0018] A preferred technical solution for a solid hydrogen storage cylinder with an internal heat exchange coupling heat pipe also includes a heat exchange zone fixedly disposed relative to the cylinder body for the passage of the heat-conducting working fluid. One end of the heat pipe is constructed as a load-bearing structure and is located in the heat exchange zone.

[0019] The solid hydrogen storage bottle with an internal heat exchange coupling heat pipe provided by the present invention has the following beneficial effects:

[0020] 1. This invention utilizes the movable arrangement of the heat-conducting part within the bottle body. When it moves, it throws the hydrogen-absorbing material away from the gas-conducting part, preventing the material from escaping and maintaining the smooth flow of hydrogen. Furthermore, the number of storage chambers is not limited by the structure and can be multiple, thus fully separating the hydrogen-absorbing material. This ensures that the entire structure maintains good thermal conductivity for the hydrogen-absorbing material while guaranteeing sufficient flow of hydrogen between the inside and outside, thereby effectively ensuring hydrogen absorption and release efficiency.

[0021] 2. By setting a force-bearing structure at the end of the heat pipe, the present invention can drive the entire heat-conducting part to rotate by means of a flowing heat-conducting working fluid, thereby solving the problem of providing kinetic energy when the heat-conducting part moves inside the bottle. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0023] Figure 1 This is a perspective view of one embodiment of the present invention.

[0024] Figure 2 For about Figure 1 The diagram shows the split-off of the structure and a schematic diagram of the excavation of some of the structures shown.

[0025] Figure 3 For about Figure 2 Another perspective view.

[0026] Figure 4 For about Figure 2 A further breakdown diagram of the structure shown in the middle section.

[0027] Figure 5 For about Figure 4 A further breakdown diagram of the structure shown in the middle section.

[0028] Figure 6 for Figure 1 The diagram shows a cross-sectional view of the hydrogen storage cylinder structure along its axis.

[0029] Figure 7 for Figure 1 The diagram shows a cross-sectional view of the hydrogen storage cylinder structure.

[0030] Figure 8 This is a structural exploded view of the air guide section described in an embodiment of the present invention.

[0031] Figure 9 This is a schematic diagram of the air vent being opened in an embodiment of the present invention.

[0032] Figure 10 This is a schematic diagram of the structure of the separator in an embodiment of the present invention.

[0033] Figure 11 This is a force trend diagram of the hydrogen-absorbing material described in the embodiments of the present invention.

[0034] Figure label:

[0035] 1. Bottle body; 2. Bottle cap; 3. Pipe interface; 4. Divider cylinder; 5. Divider plate; 501. Shelf; 502. Partition plate; 6. Surface bearing; 7. Heat pipe; 8. Rolling bearing; 9. Heat exchange zone; 10. Heat dissipation fins; 11. Storage chamber; 12. Conduit; 13. Air port; 14. Plug. Detailed Implementation

[0036] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0037] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0038] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0039] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0040] Reference Figure 1-3 An embodiment of the present invention provides a solid hydrogen storage bottle with an internal heat exchange coupling heat pipe 7, including a bottle body 1 and a bottle cap 2, which are detachably and sealed together. The bottle cap 2 is provided with a pipe interface 3 for the entry and exit of hydrogen.

[0041] Furthermore, regarding the interior of bottle 1, such as Figure 4-7As shown, it consists of multiple partition plates 5 and partition cylinders 4, which are fixedly connected as a whole (hereinafter referred to as the heat-conducting part). Specifically, axially stacked partition plates 5 are distributed between any two adjacent partition cylinders 4 along the radial direction of the bottle body 1. A gap is formed between the outermost partition cylinder 4 of the heat-conducting part and the inner wall of the bottle body 1, and a plane bearing 6 is fixedly installed at the bottom of the partition cylinder 4 to contact the bottom of the bottle. A heat pipe 7 is fixedly installed through the middle of the innermost stack of partition plates 5, which is used to handle the heat exchange between the heat-conducting part and the outside of the bottle; regarding the bottle cap 2 The structure includes a rolling bearing 8 fixedly installed at the inner axis, which is sleeved on the upper end of the heat pipe 7. Thus, through the plane bearing 6 and the rolling bearing 8, the entire heat-conducting part can rotate within the bottle body 1. A closed heat exchange zone 9 is also constructed within the wall thickness of the bottle cap 2. Heat dissipation fins 10 are rotatably installed in the heat exchange zone 9. The heat dissipation fins 10 are turbine-shaped, and the shaft end of the heat dissipation fins 10 extends to the outside of the heat exchange zone 9 and is connected to the spline at the top of the heat pipe 7, so that the heat-conducting part and the heat dissipation fins 10 can rotate synchronously.

[0042] Furthermore, the shape of the separator 5 is as follows: Figure 10 As shown, it consists of a layer plate 501 and a partition plate 502. Through this structure, multiple storage cavities 11 for loading hydrogen-absorbing materials are formed in the heat-conducting part under the action of longitudinal and transverse separation. The storage cavities 11 have both a multi-ring array distribution and a linear array distribution along the axial direction. Through this structure, when the hydrogen-absorbing material is loaded into the entire heat-conducting part, the material can be fully separated. The partition cylinder 4 and the partition plate 5 are both made of high thermal conductivity material (copper). Thus, through this structural design, the heat exchange requirements between the entire heat-conducting part and the outside of the bottle 1 can be fully met.

[0043] In this invention, when the material inside the bottle is being heated, the heat exchange zone 9 is connected to the hot water pipeline network outside the bottle body 1. Through the heat exchange fins, heat pipe 7 and heat conduction part, the heat pipe 7 of the hydrogen-absorbing material is processed by the outside to carry out the corresponding hydrogen filling and releasing process.

[0044] Furthermore, regarding the hydrogen outflow channel, such as Figure 4-7 As shown, the present invention also includes a conduit 12. A conduit 12 is provided through each of the multiple storage cavities 11 located in the same linear array direction. The two ends of the conduit 12 are through-type structures and extend to the bottom of the bottle and the mouth of the bottle body 1, respectively. Regarding the position of the conduit 12 in the cross-section of the bottle body 1, it is specifically located on the inner wall of the storage cavity 11 near the axis of the bottle body 1. Figure 7 The layout of this location is clearly shown, as is the structure of catheter 12. Figure 8 and Figure 9As shown, multiple air ports 13 are arrayed along the length of the conduit 12, each corresponding to a storage chamber 11 in the linear array path. A non-separable plug 14 is installed at each air port 13, which can be used to seal and unseal the air port 13. The plug 14 and the conduit 12 are configured with a weak magnetic attraction. Therefore, under normal conditions, the plug 14 moves closer to the conduit 12 by attraction, thereby sealing the air port 13. When the entire heat-conducting part rotates, the plug 14 is subjected to centrifugal force, which causes it to shift on the conduit 12, thereby releasing the seal on the air port 13.

[0045] In this invention, the amount of hydrogen-absorbing material loaded in each storage chamber 11 is approximately controlled to occupy 80% of the volume of the storage chamber 11, in order to accommodate the expansion and contraction requirements of the material during hydrogen absorption and release. During hydrogen filling and releasing, hot water flows through the heat exchange zone 9, thereby achieving heat exchange between the material and the heat. Simultaneously, through the turbine-shaped design, the heat dissipation fins 10 drive the heat pipe 7 to rotate, thus maintaining synchronous rotation of the entire heat-conducting section. During this process, the material is subjected to centrifugal force, causing it to deviate from the inner wall of the storage chamber 11 near the axis of the bottle body 1, thereby separating from the conduit 12. Figure 11 The colored arrows illustrate the force trend of the material in the storage chamber 11. At the same time, due to centrifugal force, the gas port 13 will also open synchronously, so that the storage chamber 11 is directly connected to the mouth of the bottle body 1 through the conduit 12, thereby satisfying the smooth flow of hydrogen. Due to centrifugal force, the material will not fall out through the gas port 13. When there is no need to fill or release hydrogen, the external hot water stops flowing, so that the heat-conducting part inside the bottle body 1 stops rotating, and the gas port 13 is closed, that is, the storage chamber 11 is kept closed, so that the material will not fall out.

[0046] Compared to current technologies, this invention, through the design of a movable structure inside the hydrogen storage cylinder, ensures that the material adheres to the wall under force during hydrogen absorption and release, preventing it from falling off. This maintains full connectivity between the material area and the outside, ensuring good gas flow efficiency. In addition, the design of multiple storage chambers 11 ensures efficient heat exchange of the material during this process, thereby improving the overall efficiency of hydrogen absorption and release.

[0047] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0048] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A solid-state hydrogen storage cylinder with an internal heat exchange coupling heat pipe, characterized in that: Including the bottle body, and: A heat-conducting part is movably disposed inside the bottle body and forms a material storage cavity inside the bottle body; The air guide section maintains communication between the storage chamber and the outside of the bottle during operation; The gas-conducting part moves synchronously with the heat-conducting part, and the heat-conducting part keeps the hydrogen-absorbing material away from the gas-conducting part during the static process.

2. The solid hydrogen storage cylinder with an internal heat exchange coupling heat pipe according to claim 1, characterized in that: The heat-conducting part is rotatably disposed inside the bottle, and the gas-conducting part has an air port located in the storage chamber. The gas-conducting part keeps the air port open and closed during rotation and stationary processes, respectively. The hydrogen-absorbing material is deviated from the air port during centrifugal process in the storage chamber.

3. The solid hydrogen storage cylinder with an internal heat exchange coupling heat pipe according to claim 2, characterized in that: Multiple storage chambers are arranged in an array inside the bottle, and the air inlets are distributed in multiple locations on the air guide section, and are respectively located at multiple storage chambers.

4. The solid hydrogen storage cylinder with an internal heat exchange coupling heat pipe according to claim 3, characterized in that: The storage chamber is formed in at least a linear array, and the air guide extends along the direction of the linear array.

5. The solid hydrogen storage cylinder with an internal heat exchange coupling heat pipe according to claim 4, characterized in that: A gap is formed between the heat-conducting part and the inner wall of the bottle, and the air-conducting part extends to the end of the storage cavity array direction.

6. The solid hydrogen storage cylinder with an internal heat exchange coupling heat pipe according to claim 4, characterized in that: The storage chamber also includes at least a ring array, the array axis of which is coaxial with the bottle body.

7. The solid hydrogen storage cylinder with an internal heat exchange coupling heat pipe according to claim 2, characterized in that: A sealing element is movably installed at the air inlet, which cooperates with the suction of the air guide. The sealing element deviates from the air inlet during the process of being subjected to centrifugal force.

8. The solid hydrogen storage cylinder with an internal heat exchange coupling heat pipe according to claim 6, characterized in that: It also includes an intermediate heat-conducting component, which is fixedly connected to the heat-conducting part. The intermediate heat-conducting component transfers heat to the heat-conducting part by contacting the external heat-conducting working medium. The intermediate heat-conducting component acquires kinetic energy and rotates as the heat-conducting working medium passes through it.

9. The solid hydrogen storage cylinder with an internal heat exchange coupling heat pipe according to claim 8, characterized in that: The intermediate heat-conducting component includes a heat pipe, which is coaxial with the axis of the annular array formed by the plurality of storage cavities, and the heat pipe passes through the linear array path formed by the plurality of storage cavities.

10. The solid hydrogen storage cylinder with an internal heat exchange coupling heat pipe according to claim 8, characterized in that: It also includes a heat exchange zone that is fixedly disposed relative to the bottle body, through which the heat transfer medium passes, and one end of the heat pipe is constructed as a load-bearing structure and is located in the heat exchange zone.

Images