Solid hydrogen storage bottle system with internal heat exchange coupling U-shaped pipe

Abstract

The utility model relates to a solid hydrogen storage bottle system with an internal heat exchange coupling U-shaped pipe, which comprises a solid hydrogen storage bottle, a connecting hole is concavely formed in one end of the solid hydrogen storage bottle, a threaded joint is arranged in the connecting hole, a filter cartridge is arranged at one end of the threaded joint, the filter cartridge extends into the solid hydrogen storage bottle, and a U-shaped pipe is arranged in the solid hydrogen storage bottle. The connecting hole extends into a connecting plug, the connecting plug is in threaded connection with a threaded connector, and the threaded connector is communicated with the connecting plug. The U-shaped pipe heat exchange structure goes deep into the solid hydrogen storage bottle and directly makes contact with the solid hydrogen storage material, the heat transfer path is greatly shortened, and compared with a traditional external jacket heat exchange structure, heat does not need to be transferred to the hydrogen storage material through the thick bottle body wall.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of solid-state hydrogen storage bottles, in particular to a solid-state hydrogen storage bottle system with internal heat exchange coupled U-shaped tubes. BACKGROUND

[0002] With the growing demand for clean energy worldwide, hydrogen energy has received widespread attention as a highly efficient and clean secondary energy source. Solid-state hydrogen storage technology has become one of the current research hotspots in the field of hydrogen storage due to its high hydrogen storage density, good safety, and other advantages.

[0003] In solid-state hydrogen storage devices, the hydrogen absorption and desorption reactions between solid-state hydrogen storage materials and hydrogen gas are usually accompanied by significant thermal effects. For example, the hydrogen absorption process of metal hydride hydrogen storage materials is an exothermic reaction, and the hydrogen desorption process is an endothermic reaction. If the heat generated during the hydrogen absorption process cannot be removed in time and effectively, or if the heat required for the hydrogen desorption process cannot be provided, it will lead to uneven temperature distribution within the hydrogen storage device, seriously affecting the hydrogen absorption and desorption performance and cycle life of the solid-state hydrogen storage material.

[0004] Currently, the existing solid-state hydrogen storage device heat exchange methods have many drawbacks. One common method is to use an external jacket heat exchange structure, which sets a jacket outside the hydrogen storage container to transfer heat by passing a heat exchange medium through the jacket. However, this method requires heat to pass through the hydrogen storage container wall to reach the internal hydrogen storage material, resulting in a long heat transfer path, high thermal resistance, and low heat exchange efficiency. In particular, for large-capacity solid-state hydrogen storage devices, the external jacket heat exchange structure cannot meet the demand for rapid and uniform heat exchange, which can cause uneven temperature distribution within the device, and the hydrogen storage material in some areas cannot fully participate in the hydrogen absorption and desorption reactions, thereby reducing the hydrogen storage capacity and performance of the entire device. At the same time, the material cost of this structure is relatively high, and when the solid-state hydrogen storage device is large in size, the cost of the jacket heat exchange structure will further increase.

[0005] Another improved heat exchange method is to set a simple straight pipe heat exchange pipeline inside the hydrogen storage device. This straight pipe structure is limited in space and cannot achieve optimal heat exchange effect in limited space. Moreover, the heat exchange area of the straight pipe heat exchange pipeline is small, which causes the heat exchange medium in some areas to be unable to effectively participate in heat exchange, further reducing the heat exchange efficiency. In addition, the straight pipe structure also has certain difficulties in installation and maintenance, for example: the heat exchange straight pipe is usually coincident with the hydrogen gas outlet, which increases the filtration cost of the equipment.

[0006] Some solid-state hydrogen storage devices also use complex plate heat exchanger structure. Although the plate heat exchanger structure can theoretically provide larger heat exchange area and higher heat exchange efficiency, the manufacturing process of this structure is complex, and the requirements for materials and processing precision are high, which leads to a substantial increase in manufacturing cost. At the same time, the plate heat exchanger structure is prone to sealing problems during long-term operation. Once the sealing fails, the leakage of the heat exchange medium will cause damage to the solid-state hydrogen storage material, seriously affecting the safety and stability of the device.

[0007] In summary, the existing solid-state hydrogen storage device heat exchange technology has obvious deficiencies in heat exchange efficiency, space utilization, cost control and stability, and cannot meet the needs of large-scale commercial application of solid-state hydrogen storage technology. Therefore, it is of great significance to develop a high-efficiency, compact, reliable and cost-effective heat exchange structure to improve the performance of solid-state hydrogen storage devices. SUMMARY

[0008] This section is intended to summarize some aspects of the embodiments of the present application and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract and title of the specification to avoid obscuring the purpose of this section, abstract and title, and such simplifications or omissions cannot be used to limit the scope of the present application.

[0009] In view of the following technical problems in the prior art: the existing solid-state hydrogen storage device heat exchange technology has obvious deficiencies in heat exchange efficiency, space utilization, cost control and stability.

[0010] To solve the above technical problems, the present application provides the following technical solutions: a solid-state hydrogen storage bottle system with internal heat exchange coupled U-shaped tube, comprising a solid-state hydrogen storage bottle, one end of the solid-state hydrogen storage bottle is recessed with a connecting hole, the inside of the connecting hole is provided with a threaded joint, one end of the threaded joint is provided with a filter cartridge, the filter cartridge extends into the inside of the solid-state hydrogen storage bottle, the connecting hole extends into a plug-in joint, the plug-in joint is threadedly connected with the threaded joint, and the threaded joint is connected with the plug-in joint; the inside of the shell is provided with a mounting plate, the mounting plate is recessed with a mounting groove, the solid-state hydrogen storage bottle passes through the mounting groove, one end of the shell is provided with a gas supply mechanism, and the other end of the shell is provided with a temperature regulating assembly.

[0011] As a preferred technical solution of the solid-state hydrogen storage bottle system with internal heat exchange coupled U-shaped tube, the inside of the solid-state hydrogen storage bottle is provided with a U-shaped tube, one end of the solid-state hydrogen storage bottle is provided with a flat cover head, the U-shaped tube extends out of the inner cavity of the solid-state hydrogen storage bottle through the flat cover head, the U-shaped tube is folded into a U-shaped structure, both sides of the U-shaped structure of the U-shaped tube are provided with sealing joints, and the sealing joints are connected with the temperature regulating assembly; the temperature regulating assembly comprises a circulating pump, various pipelines, a heat source or a cold source.

[0012] As a preferred technical scheme of the solid-state hydrogen storage bottle system with internal heat exchange coupling U-shaped pipe, the temperature adjusting assembly comprises a second branch pipe, a third branch pipe and a second main pipe, the second branch pipe is connected with the sealing joint which is not connected with the third branch pipe, the second main pipe is arranged on the shell and connected with the second branch pipe, and the mounting plate is convenient for mounting and fixing the solid-state hydrogen storage bottle.

[0013] As a preferred technical scheme of the solid-state hydrogen storage bottle system with internal heat exchange coupling U-shaped pipe, the upper side and the lower side of the shell are mounted with the closing plate, so that the solid-state hydrogen storage bottle is closed in a sealed environment.

[0014] As a preferred technical scheme of the solid-state hydrogen storage bottle system with internal heat exchange coupling U-shaped pipe, the inner side of the solid-state hydrogen storage bottle is provided with a plurality of support pieces, and the sealing joint penetrates through the support pieces; the support pieces are used for restricting the position of the sealing joint in the solid-state hydrogen storage bottle.

[0015] As a preferred technical scheme of the solid-state hydrogen storage bottle system with internal heat exchange coupling U-shaped pipe, the sealing joint on one of the U-shaped pipes is connected with the sealing joint on the other adjacent U-shaped pipe through a first branch pipe; the first branch pipe connects different U-shaped pipes, so that the heat exchange medium flows between different U-shaped pipes.

[0016] As a preferred technical scheme of the solid-state hydrogen storage bottle system with internal heat exchange coupling U-shaped pipe, the gas supply mechanism comprises a first main pipe, a first branch pipe and a one-way valve, a plurality of first branch pipes are arranged on the first main pipe, the first branch pipes are connected with the plug-in joints in a corresponding mode, and the one-way valve is arranged on the first main pipe; the gas supply system is provided with a dedicated hydrogen inlet and outlet, the hydrogen inlet is provided with a one-way valve and a flow regulating valve, so as to prevent hydrogen backflow and control the flow; the hydrogen outlet is connected with a hydrogen equipment, and a pressure regulating valve is arranged to ensure stable pressure.

[0017] The solid-state hydrogen storage bottle system with internal heat exchange coupling U-shaped pipe has the following beneficial effects: 1. The heat exchange efficiency is significantly improved; the U-shaped pipe heat exchange structure of the present application is arranged in the solid-state hydrogen storage bottle, directly contacts the solid-state hydrogen storage material, greatly shortens the heat transfer path, and compared with the traditional external jacket heat exchange structure, the heat does not need to pass through the thick bottle wall to be transferred to the hydrogen storage material, so that the heat exchange can be more rapid, for example, in the same hydrogen absorption or hydrogen release condition, the heat transfer efficiency can be improved by 30%-50% by using the U-shaped pipe heat exchange structure of the present application. This means that in the hydrogen absorption process, the heat generated in the reaction can be removed more quickly, so as to avoid the reduction of the hydrogen absorption reaction rate caused by the high temperature; in the hydrogen release process, the required heat can be provided more timely, so as to accelerate the hydrogen release speed, thereby improving the overall hydrogen absorption and release efficiency of the solid-state hydrogen storage device.

[0018] 2. The U-shaped tubes are arranged in an optimized manner such as spiral or array in the solid-state hydrogen storage bottle, which can ensure that each region of the solid-state hydrogen storage material can be in full contact with the U-shaped tubes for heat exchange, and effectively avoid the emergence of heat exchange dead zones;

[0019] Through temperature sensor monitoring, it is found that after using the structure of the application, the internal and external temperature difference of different positions in the solid-state hydrogen storage bottle can be controlled within ±5℃, while the internal and external temperature difference of the traditional heat exchange structure often reaches ±15℃ or even higher;

[0020] Such uniform temperature distribution enables each part of the solid-state hydrogen storage material to perform hydrogen absorption and release reactions under relatively consistent temperature conditions, thereby improving the utilization rate of the solid-state hydrogen storage material and further improving the hydrogen storage capacity and performance stability of the solid-state hydrogen storage device.

[0021] 3. Improve the hydrogen absorption and release response time, cooperate with the intelligent heat management system, and based on the real-time feedback data of the temperature sensor, the central control system can accurately adjust the flow and temperature of the heat exchange medium;

[0022] At the beginning of the hydrogen absorption or release reaction, the system can quickly respond and timely adjust the heat exchange parameters to ensure that the solid-state hydrogen storage device quickly reaches and maintains the optimal working temperature range. Compared with the traditional device without the intelligent system, the hydrogen absorption and release response time can be shortened by 20% to 30%. This is of great significance for application scenarios that require rapid hydrogen storage or release, such as hydrogen fuel cell vehicle hydrogen refueling and power supply processes, and can significantly improve the use convenience and working efficiency of the equipment;

[0023] 4. Reduce cost Although the U-shaped tube structure may increase certain cost in initial design and manufacturing compared to the simple jacket heat exchange structure, from the overall performance and long-term use perspective, due to its high heat exchange efficiency, it improves the hydrogen storage capacity and utilization rate of the solid-state hydrogen storage device, reduces the number of equipment required to achieve the same hydrogen storage capacity, and thus reduces the overall equipment cost;

[0024] At the same time, the reasonable selection of U-shaped tube material and the relatively simple structure design have obvious advantages in manufacturing process and material cost compared to the complex plate heat exchange structure, and are more conducive to large-scale commercial application and promotion. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor. Among them:

[0026] Figure 1The schematic diagram of the overall structure of the present application Figure 1 ;

[0027] Figure 2 The schematic diagram of the overall structure of the present application Figure 2 ;

[0028] Figure 3 The schematic diagram of the side structure of the present application Figure 1 ;

[0029] Figure 4 The schematic diagram of the side structure of the present application Figure 2 ;

[0030] Figure 5 The schematic diagram of the internal structure of the present application

[0031] Figure 6 The schematic diagram of the partial enlargement of the E part in the present application Figure 1 ;

[0032] Figure 7 The schematic diagram of the partial enlargement of the F part in the present application Figure 1 ;

[0033] Figure 8 The principle diagram of hydrogen charging and discharging of the hydrogen storage device.

[0034] The figure legend: 1, solid-state hydrogen storage bottle; 2, threaded joint; 3, filter cartridge; 4, U-shaped tube; 5, porous support sheet; 6, flat cover head; 7, sealing joint; 8, shell; 9, plug joint; 10, main pipeline I; 11, branch pipeline I; 12, one-way valve; 13, branch pipeline II; 14, branch pipeline III; 15, main pipeline II; 16, mounting plate. DETAILED DESCRIPTION

[0035] In order to make the above-mentioned purpose, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application are described in detail below in combination with the drawings of the specification.

[0036] In the following description, a lot of specific details are set forth in order to give a full and complete understanding of the present application, but the present application can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0037] Secondly, the "one embodiment" or "embodiment" referred to herein means that the specific features, structures or characteristics can be included in at least one implementation of the present application. "In one embodiment" appearing in different places in the specification does not mean the same embodiment, nor is it an independent or alternative embodiment that excludes other embodiments.

[0038] Thirdly, the present application is described in detail in combination with the schematic diagram, in the detailed description of the embodiments of the present application, for the convenience of description, the sectional view of the device structure will be partially enlarged without the general proportion, and the schematic diagram is only an example, which should not limit the scope of protection of the present application herein. In addition, the three-dimensional spatial dimensions of length, width and depth should be included in actual production.

[0039] As Figures 1-8 The present application provides a solid-state hydrogen storage bottle system with internal heat exchange coupled U-shaped tubes, which comprises a solid-state hydrogen storage bottle 1, one end of the solid-state hydrogen storage bottle 1 is recessed with a connecting hole, the inside of the connecting hole is provided with a threaded joint 2, one end of the threaded joint 2 is provided with a filter cartridge 3, the filter cartridge 3 extends into the inside of the solid-state hydrogen storage bottle 1, the connecting hole extends into a plug-in head 9, the plug-in head 9 is threadedly connected with the threaded joint 2, and the threaded joint 2 is connected with the plug-in head 9; the inside of a shell 8 is provided with a mounting plate 16, the mounting plate 16 is recessed with a mounting groove, the solid-state hydrogen storage bottle 1 passes through the mounting groove, one end of the shell 8 is provided with a gas supply mechanism, and the other end of the shell 8 is provided with a temperature adjusting assembly.

[0040] The inside of the solid-state hydrogen storage bottle 1 is provided with a U-shaped tube 4, one end of the solid-state hydrogen storage bottle 1 is provided with a flat cover head 6, the U-shaped tube 4 passes through the flat cover head 6 and extends out of the inner cavity of the solid-state hydrogen storage bottle 1, the U-shaped tube 4 is folded into a U-shaped structure, both sides of the U-shaped structure of the U-shaped tube 4 are provided with sealing joints 7, and the sealing joints 7 are connected with the temperature adjusting assembly; the temperature adjusting assembly comprises a circulating pump, various pipelines, a heat source or a cold source.

[0041] Two adjacent sealing joints 7 on different U-shaped tubes 4 at the same height are connected and connected through a branch pipeline three 14.

[0042] The temperature adjusting assembly comprises a branch pipeline two 13, the branch pipeline three 14 and a main pipeline two 15, the sealing joint 7 not connected with the branch pipeline three 14 is connected with the branch pipeline two 13, the main pipeline two 15 is arranged on the shell 8 and connected with the branch pipeline two 13; and the mounting plate 16 facilitates the mounting and fixing of the solid-state hydrogen storage bottle 1.

[0043] The upper side and the lower side of the shell 8 are both mounted with a sealing plate, so that the solid-state hydrogen storage bottle 1 is closed in a closed environment.

[0044] The inside of the solid-state hydrogen storage bottle 1 is provided with a plurality of support pieces 5, and the sealing joints 7 pass through the support pieces 5; the support pieces 5 are used to constrain the position of the sealing joints 7 inside the solid-state hydrogen storage bottle 1.

[0045] The sealing joint 7 on one of the U-shaped tubes 4 is connected with the sealing joint 7 on another adjacent U-shaped tube 4 through a branch pipeline one 11; the branch pipeline one 11 connects different U-shaped tubes 4, so that the heat exchange medium flows between different U-shaped tubes 4.

[0046] The gas supply mechanism includes a main pipe 10, a branch pipe 11 and a one-way valve 12, the main pipe 10 is provided with a plurality of branch pipes 11, the branch pipes 11 are connected with the plug 9, the main pipe 10 is provided with the one-way valve 12, the one-way valve 12 and a flow regulating valve are installed at the hydrogen inlet, the hydrogen flow is prevented and the flow is controlled. The hydrogen outlet is connected with a hydrogen equipment, and a pressure regulating valve is arranged to ensure the stability of the pressure.

[0047] The U-shaped pipe is made of copper alloy material with high thermal conductivity or the same material as the bottle body, which is easy to weld. These materials have excellent thermal conductivity and good compatibility with common solid-state hydrogen storage materials such as metal hydride, and are not prone to chemical reaction;

[0048] The pipe diameter of the U-shaped pipe is optimized, for example, the outer diameter is 10-20 mm, the inner diameter is 8-18 mm, and the center distance of the U-shaped pipe is 40-50 mm, which can ensure sufficient flow space for the heat exchange medium, reduce the flow resistance of the cooling circulating liquid, and maintain a good balance between heat exchange area and structural strength. On the surface of the U-shaped pipe in contact with the solid-state hydrogen storage material, a reinforced coating with a thickness of 0.05-0.1 mm is coated; the coating is made of special heat-conducting ceramic material, which has extremely high thermal conductivity and good chemical stability; it not only further enhances the thermal conductivity of the U-shaped pipe, but also forms an additional protective barrier between the U-shaped pipe and the solid-state hydrogen storage material to prevent possible minor chemical reactions between them, prolonging the service life of the U-shaped pipe; in order to ensure the stability of the U-shaped pipe inside the solid-state hydrogen storage bottle, avoid displacement or damage due to vibration or thermal expansion and contraction during hydrogen absorption and release, a plurality of support members are arranged between the spiral turns of the U-shaped pipe; the support members are made of high-temperature-resistant and high-strength ceramic material and are connected with the U-shaped pipe through a special buckle structure; these support members can fix the relative position between the U-shaped pipes and will not have a great impact on heat transfer;

[0049] At the same time, positioning grooves matching the spiral shape of the U-shaped pipe are arranged on the inner wall of the solid-state hydrogen storage bottle, and the U-shaped pipe is embedded in the positioning grooves, further enhancing the stability of the U-shaped pipe in the bottle. In order to further enhance the heat exchange efficiency, longitudinal fins are uniformly distributed on the outer surface of the U-shaped pipe. The fins are made of the same copper alloy material as the U-shaped pipe and are tightly connected with the U-shaped pipe through brazing process. The height of the fin is 5 mm, the thickness is 0.5 mm, and the distance between adjacent fins is 3 mm. These fins greatly increase the contact area between the U-shaped pipe and the solid-state hydrogen storage material, so that heat can be transferred between them more quickly.

[0050] Solid-state hydrogen storage material filling: The solid-state hydrogen storage material is evenly filled in the gap between the U-shaped tubes and the remaining space of the bottle. In order to enhance the thermal contact between the solid-state hydrogen storage material and the U-shaped tube, the solid-state hydrogen storage material can be pretreated before filling, such as being made into particles or powder of a specific shape to reduce thermal resistance. The hydrogen absorption expansion of the solid-state hydrogen storage material should be considered during the material filling process, and the material filling should not exceed 85% to 90% of the remaining space in the bottle.

[0051] Connection and sealing: The two ends of the U-shaped tube pass through the bottle body through a sealing joint. The sealing joint is made of high-strength, high-temperature-resistant, and high-pressure-resistant sealing material, such as polytetrafluoroethylene or metal sealing gasket, to ensure that the cooling circulating liquid does not leak and the heat exchange medium can circulate normally in the U-shaped tube.

[0052] Overall structure of solid-state hydrogen storage equipment:

[0053] Heat exchange medium circulation system: The system includes a heat exchange medium storage tank, a circulating pump, and a pipeline. The heat exchange medium is usually water or a mixture of water and ethylene glycol, which has good specific heat capacity and low freezing point, suitable for working in different temperature environments. The circulating pump draws the heat exchange medium from the heat source / cold source, transports it to the U-shaped tube inlet of the solid-state hydrogen storage bottle through the pipeline, exchanges heat with the solid-state hydrogen storage material after passing through the U-shaped tube, and returns to the heat source / cold source from the U-shaped tube outlet. The flow rate of the circulating pump can be adjusted according to the working state of the solid-state hydrogen storage device, for example, during the initial hydrogen absorption, the flow rate of the circulating pump can be appropriately increased to speed up the removal of heat.

[0054] Temperature monitoring and control system: Multiple high-precision temperature sensors and flow sensors are installed at different positions of the U-shaped tube inlet and outlet of the solid-state hydrogen storage device to monitor the heat absorption / heat release of the solid-state hydrogen storage material in real time. These temperature sensors transmit data to the central control system. The central control system controls the speed of the circulating pump and the temperature of the heat exchange medium based on the preset optimal hydrogen absorption and release temperature range. For titanium-based metal hydride hydrogen storage material, the hydrogen absorption temperature range is 0-30°C, and the hydrogen release temperature range is 35-75°C. If the temperature of a certain area exceeds or is lower than the optimal range, the central control system will adjust the flow rate of the circulating pump or control the heating or cooling device of the heat exchange medium to ensure that the temperature inside the solid-state hydrogen storage bottle always remains within the appropriate range.

[0055] The heat source includes a heat pump, and the model of the heat pump is LSQWRF130M / AN1-H1.

[0056] The cold source includes a refrigeration machine, and the model of the refrigeration machine is ZGLY-330WNO.

[0057] Hydrogen import and export system: The solid hydrogen storage bottle is provided with a special hydrogen import and export; a one-way valve and a flow regulating valve are installed at the hydrogen import to prevent hydrogen backflow and control the hydrogen flow into the solid hydrogen storage bottle. The hydrogen export is connected to the subsequent hydrogen-using equipment or storage system, which is also provided with a pressure regulating valve to ensure stable hydrogen export pressure.

[0058] The one-way valve 12 can be used as a hydrogen import or export.

[0059] Implementation example:

[0060] When hydrogen needs to be stored, hydrogen enters the main pipeline 10 through the one-way valve 12 at the hydrogen import, passes through the branch pipeline 11 to the plug-in connector 9, enters the solid hydrogen storage bottle 1 through the threaded connector 2 and the filter cartridge 3;

[0061] The U-shaped tube 4 cooperates with the temperature regulating assembly to accurately control the temperature change during hydrogen storage, and the support sheet 5 ensures the uniform distribution of the heat exchange pipeline in the hydrogen storage material;

[0062] The solid hydrogen storage material starts to react with hydrogen, and this process is an exothermic reaction;

[0063] The generated heat is absorbed by the heat exchange medium in the surrounding tightly arranged U-shaped tube, and the heat exchange medium carries the heat back to the heat exchange medium cold source under the action of the circulating pump, and the heat is dissipated through devices such as heat dissipation fins or cooling water pipes at the cold source;

[0064] At the same time, the temperature sensor monitors the temperature of the solid hydrogen storage material in real time, and the central control system adjusts the flow of the circulating pump according to the temperature data to ensure that the internal temperature of the solid hydrogen storage bottle does not exceed the optimal hydrogen absorption temperature range, and the hydrogen absorption reaction proceeds smoothly;

[0065] Accelerated hydrogen absorption flow condition: When there is a demand for rapid hydrogen storage, in addition to the above-mentioned normal process, the power and flow of the circulating pump are increased to make the heat exchange medium circulate faster and remove the heat generated by the hydrogen absorption reaction faster, ensuring that the internal temperature of the solid hydrogen storage bottle remains stable within the optimal hydrogen absorption temperature range;

[0066] On the other hand, by adjusting the flow of hydrogen into the solid hydrogen storage bottle through the flow regulating valve at the hydrogen import, while closely monitoring the pressure change in the solid hydrogen storage bottle, the pressure is ensured to be within a safe range;

[0067] In this process, the temperature sensor collects temperature data at a higher frequency and feeds back to the central control system, so that the system can more accurately adjust the flow and temperature of the heat exchange medium, so that the solid hydrogen storage material is always in the best reaction state, thereby achieving the purpose of accelerating the hydrogen absorption flow;

[0068] Hydrogen release process: when hydrogen is needed, the solid-state hydrogen storage material undergoes a hydrogen release reaction, which is an endothermic reaction; the heating device at the heat exchange medium heat source heats the heat exchange medium to the appropriate temperature, and under the push of the circulating pump, the heat exchange medium transfers heat to the solid-state hydrogen storage material through the U-shaped tube to provide the required heat for the hydrogen release reaction; similarly, the temperature sensor monitors the temperature in real time, and the central control system adjusts the flow of the circulating pump and the heating power of the heat exchange medium according to the temperature data to ensure that the internal temperature of the solid-state hydrogen storage bottle remains within the optimal temperature range for hydrogen release, improves the hydrogen release efficiency, and the support sheet is provided with a through groove;

[0069] Accelerated hydrogen release flow condition: when it is necessary to quickly release hydrogen, the system receives an accelerated hydrogen release instruction; the central control system first increases the heating power of the heat exchange medium, so that the temperature of the heat exchange medium rapidly rises to slightly higher than the optimal temperature for regular hydrogen release, and at the same time, the flow of the circulating pump is greatly increased, so that the heat exchange medium can transfer heat to the solid-state hydrogen storage material more quickly; in addition, by adjusting the pressure regulating valve at the hydrogen outlet, the outlet pressure is appropriately reduced to promote the faster flow of hydrogen; during this period, the temperature sensor continuously monitors the temperature, and the central control system adjusts the temperature and flow of the heat exchange medium in time according to the feedback data to ensure that the internal temperature of the solid-state hydrogen storage bottle meets the heat demand of accelerated hydrogen release and does not affect the performance of the solid-state hydrogen storage material due to excessively high temperature, thereby achieving the effect of accelerated hydrogen release flow.

[0070] It is understood that, during the development of any actual implementation, numerous implementation decisions can be made. Such development efforts, while possibly complex and time-consuming, would be a routine undertaking for those of ordinary skill in the art having the benefit of this disclosure, and would not require undue experimentation to derive.

[0071] It should be noted that the above examples are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present application, and they should be covered in the scope of the claims of the present application.

Claims

1. A solid hydrogen storage cylinder system with an internal heat exchange coupling U-shaped tube, characterized in that: Includes a solid hydrogen storage cylinder (1), one end of which is recessed with a connection hole, and a threaded connector (2) is provided inside the connection hole. A filter cylinder (3) is provided at one end of the threaded connector (2), and the filter cylinder (3) extends into the interior of the solid hydrogen storage cylinder (1). A plug (9) extends into the connection hole, and the plug (9) is threadedly connected to the threaded connector (2). The threaded connector (2) and the plug (9) are connected. An installation plate (16) is provided on the inner side of the housing (8), and a mounting groove is provided on the installation plate (16). The solid hydrogen storage bottle (1) passes through the mounting groove. A gas supply mechanism is provided at one end of the housing (8), and a temperature control component is provided at the other end of the housing (8).

2. The solid hydrogen storage cylinder system with internal heat exchange coupling U-shaped tube according to claim 1, characterized in that: The solid hydrogen storage cylinder (1) has a U-shaped tube (4) inside. One end of the solid hydrogen storage cylinder (1) is provided with a flat cap (6). The U-shaped tube (4) passes through the flat cap (6) and extends out of the inner cavity of the solid hydrogen storage cylinder (1). The U-shaped tube (4) is folded into a U-shaped structure. Both sides of the U-shaped structure of the U-shaped tube (4) are provided with sealing joints (7). The sealing joints (7) are connected to the temperature control component.

3. A solid hydrogen storage cylinder system with an internal heat exchange coupling U-shaped tube according to claim 2, characterized in that: Two adjacent sealing joints (7) on different U-shaped pipes (4) at the same height are connected and connected by a branch pipe (14).

4. A solid hydrogen storage cylinder system with an internal heat exchange coupling U-shaped tube according to claim 1, characterized in that: The upper and lower sides of the housing (8) are fitted with sealing plates.

5. A solid hydrogen storage cylinder system with an internal heat exchange coupling U-shaped tube according to claim 2, characterized in that: The solid hydrogen storage cylinder (1) has several support plates (5) on its inner side, and the sealing joint (7) passes through the support plates (5).

6. A solid hydrogen storage cylinder system with an internal heat exchange coupling U-shaped tube according to claim 3, characterized in that: The temperature control assembly includes a second branch pipe (13), a third branch pipe (14), and a second main pipe (15). A sealing joint (7) that is not connected to the third branch pipe (14) is connected to the second branch pipe (13). The second main pipe (15) is provided on the housing (8), and the second main pipe (15) is connected to the second branch pipe (13).

7. A solid hydrogen storage cylinder system with an internal heat exchange coupling U-shaped tube according to claim 6, characterized in that: The gas supply mechanism includes a main pipeline (10), a branch pipeline (11) and a one-way valve (12). Several branch pipelines (11) are provided on the main pipeline (10). The branch pipelines (11) are connected to the plug connector (9). The one-way valve (12) is provided on the main pipeline (10).

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