Hydrogenation device and method suitable for aluminum alloy solid hydrogen storage bottle

Abstract

The invention discloses a hydrogenation device and method suitable for an aluminum alloy solid hydrogen storage bottle. The hydrogenation device comprises a cabinet shell, a hydrogen storage bottle mounting assembly, a gas supply control assembly and an atomization cooling assembly. The hydrogen storage bottle is arranged on the hydrogen storage bottle mounting assembly, so that the hydrogen storage bottle is stably arranged in the cabinet body shell, hydrogenation control is carried out on the hydrogen storage bottle through the gas supply control assembly, a large amount of water mist is generated in the cabinet body shell through the atomization cooling assembly in the hydrogenation process, and the water mist is heated and vaporized on the bottle wall of the hydrogen storage bottle; heat generated during hydrogen filling of the solid hydrogen storage material can be quickly taken away, so that continuous hydrogen filling of the hydrogen storage bottle is ensured; the atomization cooling assembly is adopted for cooling, compared with water bath hydrogen charging, the temperature is greatly reduced, water mist on the surface of the hydrogen storage bottle evaporates rapidly, electrochemical corrosion is not prone to being formed on the bottle wall, the surface of the bottle wall is not damaged, and pressure bearing and sealing are not affected.

Description

Technical Field

[0001] The present invention relates to a hydrogenation device, specifically a hydrogenation device and method suitable for a solid hydrogen storage bottle made of aluminum alloy material, belonging to the technical field of hydrogen production and hydrogenation. Background Art

[0002] With the application and popularization of small hydrogen storage devices and fuel cell stacks in fields such as transportation, the demand for hydrogenation has increased sharply. The hydrogenation operation is achieved by connecting the hydrogenation gun of the hydrogenation station to the air inlet of the hydrogen storage bottle and controlling the valve to fill hydrogen into the hydrogen storage bottle.

[0003] In the prior art, such as a method for connecting, disconnecting a hydrogen storage bottle and a hydrogenation device and a hydrogen filling method disclosed in publication number CN116336383A, the hydrogen filling method includes: pushing the hydrogen storage bottle to be filled into the gas cylinder compartment until the quick-connect male connector is installed on the quick-connect female connector and locked in place after reaching the position, so that the gas path is connected, completing the docking of the hydrogen storage bottle and the hydrogenation device; turning on the switch of the hydrogen production module, starting the electrolyzer to produce hydrogen, and filling hydrogen into the hydrogen storage bottle; after detecting that the hydrogen filling of the hydrogen storage bottle is completed, turning off the hydrogen production module; pressing the button, and pushing the opening and closing sliding sleeve to move away from the quick-connect male connector through the locking and disconnecting device, and the quick-connect female connector pops out from the quick-connect male connector and the hydrogen storage bottle, completing the disconnection of the hydrogen storage bottle and the hydrogenation device. The automatic and rapid disassembly and assembly of the hydrogen storage bottle and the hydrogenation device are realized through the cooperation between the locking and disconnecting device, the quick-connect male connector and the quick-connect female connector, and the automatic hydrogen filling of the hydrogen storage bottle is realized. However, during the hydrogen filling process, the hydrogen storage material filled in the solid hydrogen storage bottle will generate a large amount of heat during hydrogen filling. During hydrogen filling, the heat generated by the hydrogen storage material needs to be quickly transferred to the outside of the hydrogen storage container, otherwise the hydrogen storage material will slow down or stop hydrogen absorption due to too high temperature. The heat release amount is the product of the hydrogen absorption and heat release enthalpy value of the hydrogen storage material itself and the hydrogen absorption amount. Taking the commonly used titanium-manganese-based room-temperature hydrogen storage material as an example, the heat released by filling 1 kg of hydrogen is about 15 MJ, which is equivalent to 4.2 degrees of electric energy and can raise the temperature of 720 kg of water by 5 °C. For the same 1 kg of hydrogen, only about 15 degrees of electricity can be provided by hydrogen fuel cell power generation, and the hydrogen filling energy consumption is about 27.8%. The commonly used hydrogen filling and heat dissipation method is water bath hydrogen filling. The water bath hydrogen filling has the following problems: 1) The aluminum alloy material bottle body used for the solid hydrogen storage bottle is prone to pitting corrosion on the surface due to electrochemical corrosion when contacting water containing ions. The pitting corrosion accumulated over a long time will cause uneven wall thickness of the bottle body, affecting pressure bearing and sealing; 2) During water bath hydrogen filling, a large amount of water is required to absorb heat, or an industrial chiller is used to cool the water in a cycle, resulting in large water and electricity consumption; 3) To prevent water from entering the inside of the bottle valve joint, before hydrogen filling, the solid-state hydrogen storage bottle needs to be installed with a high-pressure metal hose with a hydrogen filling joint outside the water bath box and then placed inside the water bath box. After hydrogen filling is completed, it is necessary to remove the hydrogen filling joint after taking out the high-pressure metal hose together from the water bath box. This results in low work efficiency, high labor intensity, and large occupation of production sites. 4) The hydrogen storage bottle is immersed in water. Even a contact temperature sensor is difficult to effectively monitor the temperature of the bottle body of the hydrogen storage bottle, and it is impossible to quickly identify the problematic hydrogen storage bottle through the bottle body temperature during the hydrogen filling process. Summary of the Invention

[0004] The purpose of the present invention is to provide a hydrogenation device and method suitable for solid-state hydrogen storage bottles made of aluminum alloy in order to solve at least one of the above technical problems.

[0005] The present invention achieves the above purpose through the following technical solutions: A hydrogenation device suitable for solid-state hydrogen storage bottles made of aluminum alloy, including a cabinet shell. Inside the cabinet shell, there are several hydrogen storage bottles. An integrated hydrogen storage bottle installation component, a gas supply control component, and an atomization cooling component are arranged inside the cabinet shell. The hydrogen storage bottles are placed on the hydrogen storage bottle installation component. The gas supply control component is connected to the gas filling interface of the hydrogen storage bottle, and the atomization cooling component is arranged on the upper and lower sides of the bottle body of the hydrogen storage bottle. The gas supply control component includes a main hydrogen inlet pipe and multiple hydrogenation branch pipes, and multiple hydrogenation branch pipes are all communicated with the main hydrogen inlet pipe. A drain pipe and a hydrogen replacement pipe are communicated with the pipe body of the main hydrogen inlet pipe. The pipe body of the hydrogenation branch pipe is communicated with several hydrogenation hoses, and the other end of each hydrogenation hose is communicated with a quick connector. The atomization cooling component includes a high-pressure water outlet main pipe and multiple high-pressure injection branch pipes. Multiple high-pressure injection branch pipes are all communicated with the pipe body of the high-pressure water outlet main pipe, and the pipe body of the high-pressure injection branch pipe is communicated with several atomizing nozzles. The high-pressure injection branch pipes are arranged in a crisscross pattern with the hydrogen storage bottles, and the communication positions of the atomizing nozzles on the pipe body of the high-pressure injection branch pipe are respectively aligned with the upper and lower sides of the bottle body of the hydrogen storage bottle.

[0006] As a further scheme of the present invention: A cabinet door is movably connected to the opening side of the cabinet shell. Universal wheels are connected to the bottom of the cabinet shell. A water receiving tray is placed at the bottom inside the cabinet shell. A transparent observation window is opened at the bottom end of the cabinet door.

[0007] As a further scheme of the present invention: The hydrogen storage bottle installation component includes a bottle body support cross bar, a bottle body support plate, and an arc-shaped bottle holder. The bottle body support cross bar is horizontally and fixedly connected inside the cabinet shell. The bottle body support plates are evenly distributed and connected to the rod body of the bottle body support cross bar. The arc-shaped bottle holders are respectively fixedly connected to the upper ends of the bottle body support plates.

[0008] As a further solution of the present invention: Along the hydrogen flow direction, the hydrogen inlet main pipe of the gas supply control assembly is sequentially connected with a hydrogen inlet needle valve, a hydrogen inlet filter, a hydrogen inlet high-pressure pressure transmitter, a hydrogen inlet pressure reducing valve, a hydrogen inlet pressure gauge, a hydrogen inlet low-pressure pressure transmitter, a hydrogen inlet solenoid valve, and a hydrogen inlet check valve.

[0009] As a further solution of the present invention: A tee is provided at the connection part of the evacuation pipe of the gas supply control assembly and the hydrogen inlet main pipe, and along the hydrogen flow direction, the evacuation pipe is sequentially connected with an evacuation check valve, an evacuation pressure reducing valve, and an evacuation needle valve.

[0010] As a further solution of the present invention: A tee is provided at the connection part of the hydrogenation branch pipe of the gas supply control assembly and the hydrogen inlet main pipe, and along the hydrogen flow direction, the hydrogenation branch pipe is sequentially connected with a replacement filter, a replacement low-pressure pressure transmitter, a replacement check valve, a replacement pressure gauge, a replacement solenoid valve, a back pressure valve, and a replacement needle valve.

[0011] As a further solution of the present invention: A hydrogenation solenoid valve is installed on the pipe body at one end where the hydrogenation branch pipe is connected to the hydrogen inlet main pipe.

[0012] As a further solution of the present invention: The atomization cooling assembly further includes a pressurized fog-making water pump, which is fixedly connected to the outer side of the cabinet shell. The input end of the pressurized fog-making water pump is communicated with an external water pipe, and the output end of the pressurized fog-making water pump is communicated with a high-pressure water outlet main pipe.

[0013] As a further solution of the present invention: A gas collection hood is connected to the top opening of the cabinet shell. The upper end of the gas collection hood is communicated with an air draft pipe, and an air draft fan is fixedly connected inside the air draft pipe. The other end of the air draft pipe is communicated with the workshop air suction and exhaust system.

[0014] A hydrogenation method suitable for a hydrogen storage bottle made of aluminum alloy in solid state, including a hydrogenation device, the hydrogenation method comprising the following steps: S1. During use, the hydrogen storage bottle is horizontally fixed by an arc-shaped bottle holder, with the bottle valve facing the operator, so as to connect the hydrogen filling connector and check for leaks. The bottle holder can expose as much of the bottle body of the hydrogen storage bottle as possible to the water mist environment, providing a sufficient contact area for the water mist to dissipate heat. S2. Before hydrogen filling, argon gas at a certain pressure is introduced from the hydrogen inlet main pipe. All valves except the evacuation needle valve and the replacement needle valve are opened, so that the argon gas enters all parts of the pipeline. Then, the argon gas valve is closed and the evacuation needle valve is opened to discharge the mixture of argon gas and air from the pipeline. After repeating this process multiple times, all the air in the pipeline can be replaced with argon gas to ensure that no gas other than hydrogen and argon enters the hydrogen storage bottle during subsequent hydrogen filling. S3, when filling hydrogen, hydrogen that meets the filling conditions is controlled to enter through the hydrogen inlet needle valve, and is reduced in pressure to a pressure suitable for filling hydrogen in the hydrogen storage bottle after passing through the hydrogen inlet filter and the hydrogen inlet pressure reducing valve, and then guided into the hydrogen filling branch pipe through the hydrogen inlet solenoid valve and the hydrogen inlet check valve, and is filled into each hydrogen storage bottle through the quick plug connector; S4. Maintain pressure for inspection: During the hydrogen charging process, the hydrogen inlet solenoid valve can be closed at any time, and the hydrogen pressure in the pipeline can be collected or visually read through the pressure sensor at the rear end of the solenoid valve and the hydrogen inlet pressure gauge, and related test items such as hydrogen leak detection and temperature-pressure correlation changes can be performed; S5, overpressure release: When hydrogen filling is completed or the pressure sensor detects that the hydrogen pressure is higher than the allowable working range, the exhaust pressure reducing valve will be opened to release the overpressure hydrogen to avoid affecting the safety of the solid-state hydrogen storage bottle; after hydrogen filling is completed, the solenoid valves of each hydrogen filling branch are closed first, and the exhaust valve is opened to discharge the remaining hydrogen in the main line, and then the solid-state hydrogen storage bottle is removed to complete the hydrogen filling; S6. During the hydrogen filling process, the booster mist pump pressurizes the water in the external water pipe and transports it to the high-pressure water outlet main pipe, and then transports it to the high-pressure injection branch pipe for atomization and spraying through the atomizing nozzle. The water mist adheres to the surface of the hydrogen storage bottle to absorb heat and dissipate heat. At the same time, auxiliary ventilation provides sufficient air flow for the vaporization of water mist on the surface of the hydrogen storage bottle, thereby enhancing the vaporization heat absorption effect.

[0015] The beneficial effects of the present invention are: 1) The present invention is provided with a cabinet shell, and a plurality of hydrogen storage bottles are arranged in the cabinet shell. A hydrogen storage bottle installation component, a gas supply control component and an atomizing cooling component are integrated in the cabinet shell. The hydrogen storage bottle is placed on the hydrogen storage bottle installation component so that the hydrogen storage bottle is stably placed in the cabinet shell. The hydrogenation of the hydrogen storage bottle is controlled by the gas supply control component. During the hydrogenation process, a large amount of water mist is generated in the cabinet shell by the atomizing cooling component. The water mist is heated and vaporized on the wall of the hydrogen storage bottle, and the heat generated when the solid hydrogen storage material is charged with hydrogen can be quickly taken away, thereby ensuring that the hydrogen storage bottle is continuously charged with hydrogen; 2) The gas supply control assembly provided in the present invention includes a hydrogen inlet main pipe and a plurality of hydrogenation branch pipes, which can replace the gas in the pipeline through the hydrogen replacement pipe before hydrogen filling, and can empty the gas in the pipeline through the exhaust pipe during hydrogen filling, thereby realizing the functions of pressure-limited hydrogen filling, pressure-maintaining inspection and overpressure relief, and providing the solid-state hydrogen storage bottle with hydrogen conditions that meet the design requirements; 3) The atomization cooling component provided in the present invention includes a high-pressure water outlet main pipe and a plurality of high-pressure injection branch pipes. The plurality of high-pressure injection branch pipes are all connected to the pipe body of the high-pressure water outlet main pipe, and a number of atomizing nozzles are connected to the pipe body of the high-pressure injection branch pipe. When hydrogen is filled into the hydrogen storage bottle, the atomization cooling component atomizes high-pressure water through the atomizing nozzles and sprays it on the surface of the hydrogen storage bottle body to provide heat absorption and heat dissipation, eliminating equipment such as chillers and cooling water tanks that occupy a large area and have high costs, reducing the investment in production facilities, which is significantly lower compared to water bath hydrogen filling. The water mist on the surface of the hydrogen storage bottle evaporates quickly and is not likely to form electrochemical corrosion on the bottle wall, causing no damage to the bottle wall surface and not affecting pressure bearing and sealing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the internal structure of the cabinet shell of the present invention; Figure 3 is a schematic diagram of the structure of the hydrogen storage bottle installation component of the present invention; Figure 4 is a schematic diagram of the connection structure between the hydrogen storage bottle and the hydrogen storage bottle installation component of the present invention; Figure 5 is a schematic diagram of the cross-sectional structure of the high-pressure injection branch pipe of the present invention; Figure 6 is a schematic diagram of the cross-sectional structure of the gas collection hood of the present invention; Figure 7 is a schematic diagram of the structure of the gas supply control component of the present invention; In the figure: 1, cabinet shell; 11, cabinet door; 12, transparent observation window; 13, universal wheel; 14, water receiving tray; 2, bottle body support cross bar; 21, bottle body support plate; 22, arc-shaped bottle holder; 3, hydrogen storage bottle; 4, gas supply control component; 41, hydrogen inlet main pipe; 42, evacuation pipe; 43, hydrogen replacement pipe; 44, hydrogen filling branch pipe; 45, hydrogen inlet needle valve; 46, hydrogen inlet filter; 47, hydrogen inlet high-pressure pressure transmitter; 48, hydrogen inlet pressure reducing valve; 49, hydrogen inlet pressure gauge; 410, hydrogen inlet low-pressure pressure transmitter; 411, hydrogen inlet solenoid valve; 412, hydrogen inlet check valve; 413, evacuation check valve; 414, evacuation pressure reducing valve; 415, evacuation needle valve; 416, tee; 417, replacement filter; 418, replacement low-pressure pressure transmitter; 419, replacement check valve; 420, replacement pressure gauge; 421, replacement solenoid valve; 422, back pressure valve; 423, replacement needle valve; 424, hydrogen filling solenoid valve; 425, hydrogen filling hose; 426, quick connector; 5, booster atomizing water pump; 51, high-pressure water outlet main pipe; 52, high-pressure injection branch pipe; 53, atomizing nozzle; 6, gas collection hood; 61, air guide pipe; 62, air blower. DETAILED DESCRIPTION OF THE INVENTION

[0017] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0018] Embodiment 1, as Figures 1 to 7 shown, a hydrogenation device suitable for a solid hydrogen storage bottle made of aluminum alloy material includes a cabinet shell 1. A plurality of hydrogen storage bottles 3 are arranged in the cabinet shell 1. A hydrogen storage bottle installation component, a gas supply control component 4 and an atomization cooling component are integrally arranged in the cabinet shell 1. The hydrogen storage bottles 3 are placed on the hydrogen storage bottle installation component. The gas supply control component 4 is connected to the gas filling interface of the hydrogen storage bottles 3. The atomization cooling component is arranged on the upper and lower sides of the bottle body of the hydrogen storage bottles 3. By placing the hydrogen storage bottles 3 on the hydrogen storage bottle installation component, the hydrogen storage bottles 3 can be stably placed in the cabinet shell 1. The gas supply control component 4 controls the hydrogenation of the hydrogen storage bottles 3. During the hydrogenation process, a large amount of water mist is generated in the cabinet shell 1 by the atomization cooling component. The water mist is vaporized by heat on the wall of the hydrogen storage bottles 3, and can quickly take away the heat generated when the solid hydrogen storage material is filled with hydrogen, so as to ensure the continuous hydrogen filling of the hydrogen storage bottles 3; The gas supply control component 4 includes a hydrogen inlet main pipe 41 and a plurality of hydrogenation branch pipes 44, and the plurality of hydrogenation branch pipes 44 are all communicated with the hydrogen inlet main pipe 41. An exhaust pipe 42 and a hydrogen replacement pipe 43 are communicated with the pipe body of the hydrogen inlet main pipe 41. A plurality of hydrogenation hoses 425 are communicated with the pipe body of the hydrogenation branch pipes 44. The other end of each hydrogenation hose 425 is communicated with a quick connector 426, which can replace the gas in the pipeline through the hydrogen replacement pipe 43 before hydrogen filling, and can empty the gas in the pipeline through the exhaust pipe 42 during hydrogen filling, realizing functions such as pressure-limited hydrogen filling, pressure-holding for inspection and overpressure relief, and providing hydrogen conditions that meet the design requirements for the solid hydrogen storage bottle; The atomization cooling assembly includes a high-pressure main water outlet pipe 51 and a plurality of high-pressure injection branch pipes 52. The plurality of high-pressure injection branch pipes 52 are all connected to the pipe body of the high-pressure main water outlet pipe 51, and a number of atomizing nozzles 53 are connected to the pipe body of the high-pressure injection branch pipe 52. The high-pressure injection branch pipes 52 are arranged in a crisscross pattern with the hydrogen storage bottle 3. The connection positions of the atomizing nozzles 53 on the pipe body of the high-pressure injection branch pipe 52 are respectively aligned with the upper and lower sides of the bottle body of the hydrogen storage bottle 3. When the hydrogen storage bottle 3 is filled with hydrogen, the atomization cooling assembly atomizes high-pressure water through the atomizing nozzles and sprays it on the surface of the bottle body of the hydrogen storage bottle 3 to provide heat absorption and heat dissipation, eliminating large-footprint and high-cost equipment such as chillers and cooling water tanks, reducing the investment in production facilities. The latent heat of vaporization of water can reach 2.26 kJ / g. In theory, only 6.7 kg of water is needed to release the heat dissipated by 1 kg of hydrogen absorption by the hydrogen storage material. At the same time, the power consumption of the used atomization cooling assembly does not exceed 500 w, which is greatly reduced compared with water bath hydrogen filling. The water mist on the surface of the hydrogen storage bottle 3 evaporates quickly and is not easy to form electrochemical corrosion on the bottle wall, causing no damage to the bottle wall surface and not affecting pressure bearing and sealing.

[0019] Embodiment 2. In this embodiment, in addition to including all the technical features in Embodiment 1, it further includes: a cabinet door 11 is movably connected to the opening side of the cabinet body shell 1, a universal wheel 13 is connected to the bottom of the cabinet body shell 1, a water receiving tray 14 is placed at the bottom inside the cabinet body shell 1, and a transparent observation window 12 is opened at the bottom end of the cabinet door 11. The conveniently opened and closed cabinet door 11 and the flexible movement of the hydrogen filling device driven by the universal wheel 13 can facilitate the operator to load and unload the hydrogen storage bottle 3. At the same time, the provided water receiving tray 14 can collect the water droplets generated during the bottle body cooling of the atomization cooling assembly, and the amount of water collected in the basin can be observed in real time through the transparent observation window 12.

[0020] The hydrogen storage bottle installation assembly includes a bottle body support cross bar 2, bottle body support plates 21, and arc-shaped bottle supports 22. The bottle body support cross bar 2 is horizontally and fixedly connected inside the cabinet body shell 1. The bottle body support plates 21 are evenly distributed and connected to the rod body of the bottle body support cross bar 2. The arc-shaped bottle supports 22 are respectively fixedly connected to the upper ends of the bottle body support plates 21 to stably support both ends of the hydrogen storage bottle 3 through the arc-shaped bottle supports 22, thereby ensuring that as much of the bottle body of the hydrogen storage bottle 3 as possible is exposed to the water mist environment and providing a sufficient contact area for water mist heat dissipation.

[0021] The pipe body of the hydrogen inlet main pipe 41 of the gas supply control assembly 4 is sequentially connected with a hydrogen inlet needle valve 45, a hydrogen inlet filter 46, a hydrogen inlet high-pressure pressure transmitter 47, a hydrogen inlet pressure reducing valve 48, a hydrogen inlet pressure gauge 49, a hydrogen inlet low-pressure pressure transmitter 410, a hydrogen inlet solenoid valve 411, and a hydrogen inlet check valve 412 along the hydrogen flow direction.

[0022] At the connection part of the evacuation pipe 42 of the gas supply control component 4 and the pipe body of the hydrogen inlet main pipe 41, a tee joint 416 is provided, and along the flowing direction of hydrogen on the pipe body of the evacuation pipe 42, an evacuation check valve 413, an evacuation pressure reducing valve 414 and an evacuation needle valve 415 are successively connected.

[0023] At the connection part of the hydrogenation branch pipe 44 of the gas supply control component 4 and the pipe body of the hydrogen inlet main pipe 41, a tee joint 416 is provided, and along the flowing direction of hydrogen on the pipe body of the hydrogenation branch pipe 44, a replacement filter 417, a replacement low-pressure pressure transmitter 418, a replacement check valve 419, a replacement pressure gauge 420, a replacement solenoid valve 421, a back pressure valve 422 and a replacement needle valve 423 are successively connected.

[0024] A hydrogenation solenoid valve 424 is installed on the pipe body at one end of the hydrogenation branch pipe 44 connected to the hydrogen inlet main pipe 41.

[0025] The atomization cooling component further includes a pressurized fog-making water pump 5. The pressurized fog-making water pump 5 is fixedly connected to the outer side of the shell body of the cabinet shell 1. The input end of the pressurized fog-making water pump 5 is communicated with an external water pipe, and the output end of the pressurized fog-making water pump 5 is communicated with a high-pressure water outlet main pipe 51.

[0026] A gas collecting hood 6 is connected to the top opening of the cabinet shell 1. The upper end of the gas collecting hood 6 is communicated with an air guiding pipe 61. An air guiding fan 62 is fixedly connected in the air guiding pipe 61, and the other end of the air guiding pipe 61 is communicated with the workshop air suction and exhaust system, which can assist ventilation to provide sufficient air flow for the vaporization of the water mist on the surface of the hydrogen storage bottle 3 and strengthen the vaporization heat absorption effect.

[0027] Example 3, a hydrogenation method suitable for an aluminum alloy solid hydrogen storage bottle, includes a hydrogenation device. The hydrogenation method includes the following steps: S1. When in use, the hydrogen storage bottle 3 is horizontally fixed through the arc-shaped bottle support 22, and the bottle valve part faces the operator so as to connect the hydrogen filling joint and check for leaks. The bottle support can expose as much of the bottle body of the hydrogen storage bottle 3 as possible in the water mist environment to provide sufficient contact area for the water mist to dissipate heat. S2. Before hydrogen filling, argon gas with a certain pressure (1 MPa) is introduced from the hydrogen inlet main pipe 41. All the valves except the evacuation needle valve 415 and the replacement needle valve 423 are opened to allow the argon gas to enter all parts of the pipeline. Then, the argon gas valve is closed and the evacuation needle valve 415 is opened to discharge the mixture of argon gas and air from the pipeline. After repeating this process multiple times, all the air in the pipeline can be replaced with argon gas to ensure that no other gases except hydrogen and argon enter the hydrogen storage bottle 3 during subsequent hydrogen filling. S3. During hydrogen filling, hydrogen meeting the hydrogen filling conditions enters through the hydrogen inlet needle valve 45, is reduced to a pressure suitable for filling the hydrogen storage cylinder 3 after passing through the hydrogen inlet filter 46 and the hydrogen inlet pressure reducing valve 48, and then enters the hydrogen filling branch pipe 44 through the hydrogen inlet solenoid valve 411 and the hydrogen inlet check valve 412, and is filled into each hydrogen storage cylinder 3 through the quick connector 426; S4. Pressure holding for inspection: During hydrogen filling, the hydrogen inlet solenoid valve 411 can be closed at any time, and the hydrogen pressure in the pipeline can be collected or visually read through the pressure sensor at the rear end of the solenoid valve and the hydrogen inlet pressure gauge 49, and relevant test items such as hydrogen leak detection and temperature-pressure correlation change can be carried out; S5. Overpressure relief: When the hydrogen filling is completed or the pressure sensor detects that the hydrogen pressure is higher than the allowed working range, the drain pressure reducing valve 414 will be opened to release the overpressure hydrogen to prevent affecting the safety of the solid hydrogen storage cylinder; after the hydrogen filling is completed, the solenoid valves of each hydrogen filling branch are first closed, the drain valve is opened to discharge the remaining hydrogen in the main pipeline, and then the solid hydrogen storage cylinder 3 is removed to complete the hydrogen filling; S6. During hydrogen filling, the pressurized fogging water pump 5 pressurizes the water in the external water pipe and transports it to the high-pressure water outlet main pipe 51, then transports it to the high-pressure spray branch pipe 52 and atomizes it through the atomizing nozzle 53 for spraying. The water mist adheres to the surface of the hydrogen storage cylinder 3 for heat absorption and heat dissipation. At the same time, auxiliary ventilation provides sufficient air flow for the vaporization of the water mist on the surface of the hydrogen storage cylinder 3 to strengthen the vaporization heat absorption effect.

[0028] By arranging the hydrogen storage cylinder 3 on the hydrogen storage cylinder installation assembly, the hydrogen storage cylinder 3 is stably arranged in the cabinet shell 1. The hydrogen supply control assembly 4 controls the hydrogen filling of the hydrogen storage cylinder 3. During hydrogen filling, a large amount of water mist is generated in the cabinet shell 1 through the atomizing cooling assembly. The water mist is vaporized by heat on the wall of the hydrogen storage cylinder 3, and can quickly take away the heat generated during the hydrogen filling of the solid hydrogen storage material, so as to ensure the continuous hydrogen filling of the hydrogen storage cylinder 3.

[0029] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0030] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A hydrogenation device suitable for a solid hydrogen storage cylinder made of aluminum alloy, comprising a cabinet shell (1), characterized in that: Inside the cabinet housing (1), there are several hydrogen storage bottles (3). An assembly for installing hydrogen storage bottles, a gas supply control assembly (4), and an atomizing cooling assembly are integrally arranged inside the cabinet housing (1). The hydrogen storage bottles (3) are placed on the hydrogen storage bottle installation assembly. The gas supply control assembly (4) is connected to the gas filling interface of the hydrogen storage bottles (3). The atomizing cooling assembly is arranged on the upper and lower sides of the bottle body of the hydrogen storage bottles (3). The gas supply control assembly (4) includes a main hydrogen inlet pipe (41) and a plurality of hydrogen filling branch pipes (44). The plurality of hydrogen filling branch pipes (44) are all communicated with the main hydrogen inlet pipe (41). An exhaust pipe (42) and a hydrogen replacement pipe (43) are communicated with the pipe body of the main hydrogen inlet pipe (41). A plurality of hydrogen filling hoses (425) are communicated with the pipe body of the hydrogen filling branch pipes (44). The other end of each hydrogen filling hose (425) is communicated with a quick connector (426). The atomizing cooling assembly includes a main high-pressure water outlet pipe (51) and a plurality of high-pressure injection branch pipes (52). The plurality of high-pressure injection branch pipes (52) are all communicated with the pipe body of the main high-pressure water outlet pipe (51). A plurality of atomizing nozzles (53) are communicated with the pipe body of the high-pressure injection branch pipes (52). The high-pressure injection branch pipes (52) are arranged in a crisscross pattern with the hydrogen storage bottles (3). The communication positions of the atomizing nozzles (53) on the pipe body of the high-pressure injection branch pipes (52) are respectively aligned with the upper and lower sides of the bottle body of the hydrogen storage bottles (3).

2. The hydrogenation device according to claim 1, characterized in that: A cabinet door (11) is movably connected to the opening side of the cabinet housing (1). Universal wheels (13) are connected to the bottom of the cabinet housing (1). A water receiving tray (14) is placed on the inner bottom of the cabinet housing (1). A transparent observation window (12) is opened at the bottom end of the cabinet door (11).

3. The hydrogenation device according to claim 1 or 2, characterized in that: The hydrogen storage bottle installation assembly includes a bottle body support cross bar (2), bottle body support plates (21), and arc-shaped bottle supports (22). The bottle body support cross bar (2) is horizontally and fixedly connected inside the cabinet housing (1). The bottle body support plates (21) are uniformly distributed and connected to the rod body of the bottle body support cross bar (2). The arc-shaped bottle supports (22) are respectively fixedly connected to the upper ends of the bottle body support plates (21).

4. The hydrogenation device according to claim 1, wherein: Along the flowing direction of hydrogen, a hydrogen inlet needle valve (45), a hydrogen inlet filter (46), a hydrogen inlet high-pressure pressure transmitter (47), a hydrogen inlet pressure reducing valve (48), a hydrogen inlet pressure gauge (49), a hydrogen inlet low-pressure pressure transmitter (410), a hydrogen inlet solenoid valve (411), and a hydrogen inlet check valve (412) are sequentially connected to the pipe body of the main hydrogen inlet pipe (41) of the gas supply control assembly (4).

5. The hydrogenation device according to claim 4, characterized in that: A tee (416) is arranged at the connection part of the exhaust pipe (42) of the gas supply control assembly (4) and the pipe body of the main hydrogen inlet pipe (41). Along the flowing direction of hydrogen, an exhaust check valve (413), an exhaust pressure reducing valve (414), and an exhaust needle valve (415) are sequentially connected to the pipe body of the exhaust pipe (42).

6. The hydrogenation device according to claim 5, characterized in that: A tee joint (416) is provided at the connection part of the hydrogenation branch pipe (44) of the gas supply control assembly (4) and the pipe body of the main hydrogen inlet pipe (41). Along the flow direction of hydrogen, the pipe body of the hydrogenation branch pipe (44) is sequentially connected with a displacement filter (417), a displacement low-pressure pressure transmitter (418), a displacement check valve (419), a displacement pressure gauge (420), a displacement solenoid valve (421), a back pressure valve (422) and a displacement needle valve (423).

7. The hydrogenation device according to claim 6, characterized in that: A hydrogenation solenoid valve (424) is installed on the pipe body at one end of the hydrogenation branch pipe (44) connected to the main hydrogen inlet pipe (41).

8. The hydrogenation device according to claim 1, characterized in that: The atomization cooling assembly further includes a pressurized fog-making water pump (5). The pressurized fog-making water pump (5) is fixedly connected to the outer side of the shell body of the cabinet shell (1). The input end of the pressurized fog-making water pump (5) is communicated with an external water pipe, and the output end of the pressurized fog-making water pump (5) is communicated with a high-pressure water outlet main pipe (51).

9. The hydrogenation device according to claim 1, characterized in that: A gas collecting hood (6) is connected to the top opening of the cabinet shell (1). The upper end of the gas collecting hood (6) is communicated with an air guiding pipe (61). An air guiding fan (62) is fixedly connected in the air guiding pipe (61), and the other end of the air guiding pipe (61) is communicated with the workshop air suction and exhaust system.

10. A hydrogenation method suitable for a solid hydrogen storage cylinder made of aluminum alloy, comprising the hydrogenation device according to any one of claims 1-9 above, characterized in that: The hydrogenation method includes the following steps: S1. During use, the hydrogen storage bottle (3) is horizontally fixed by the arc-shaped bottle holder (22), and the bottle valve part faces the operator for connecting the hydrogen filling joint and checking for leaks. The bottle holder exposes the bottle body of the hydrogen storage bottle (3) to the water mist environment, providing a sufficient contact area for heat dissipation of the water mist; S2. Before hydrogen filling, argon is introduced from the main hydrogen inlet pipe (41). All the valves except the emptying needle valve (415) and the displacement needle valve (423) are opened. After argon enters all parts of the pipeline, the argon valve is closed and the emptying needle valve (415) is opened to discharge the mixture of argon and air from the pipeline. After repeating this process multiple times, all the air in the pipeline can be replaced with argon to ensure that no gas other than hydrogen and argon enters the hydrogen storage bottle (3) during subsequent hydrogen filling; S3. During hydrogen filling, hydrogen meeting the hydrogen filling conditions is controlled to enter through the hydrogen inlet needle valve (45), and after passing through the hydrogen inlet filter (46) and the hydrogen inlet pressure reducing valve (48), it is reduced to a pressure suitable for hydrogen filling of the hydrogen storage bottle (3), and then guided into the hydrogenation branch pipe (44) through the hydrogen inlet solenoid valve (411) and the hydrogen inlet check valve (412), and is filled into each hydrogen storage bottle (3) through the quick connector (426); S4. Pressure holding for inspection: During the hydrogen filling process, the hydrogen inlet solenoid valve (411) can be closed at any time. The hydrogen pressure in the pipeline is collected through the pressure sensor at the rear end of the solenoid valve and the hydrogen inlet pressure gauge (49), or visually read, and relevant test items such as hydrogen leak detection and temperature-pressure correlation change can be carried out; S5. Overpressure relief: When the hydrogen filling is completed or the pressure sensor detects that the hydrogen pressure is higher than the allowable working range, the drain pressure reducing valve (414) will be opened to release the overpressure hydrogen to prevent affecting the safety of the solid hydrogen storage cylinder; after the hydrogen filling is completed, the solenoid valves of each hydrogen filling branch will be closed first, the drain valve will be opened to discharge the remaining hydrogen in the main pipeline, and then the solid hydrogen storage cylinder (3) will be removed to complete the hydrogen filling; S6. During the hydrogen filling process, the pressurized fog-making water pump (5) pressurizes the water in the peripheral water pipe and transports it to the high-pressure outlet main pipe (51), then to the high-pressure spray branch pipe (52), and then atomizes it through the atomizing nozzle (53) and sprays it. The water mist adheres to the surface of the hydrogen storage cylinder (3) for heat absorption and heat dissipation. At the same time, auxiliary ventilation provides sufficient air flow for the vaporization of the water mist on the surface of the hydrogen storage cylinder (3) to enhance the vaporization heat absorption effect.

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