Hydrogen release device and method for sealed chain conveying hydrolysis hydrogen storage material

Abstract

The application discloses a hydrogen release device and method for sealed chain conveying hydrolysis hydrogen storage material, and belongs to the technical field of solid hydrogen storage material. The device comprises a combined chain conveying system and a water-sealed reaction system. The water-sealed reaction system comprises a water tank and a reaction gas phase cavity, and is used for hydrogen production reaction of solid hydrogen storage material to release hydrogen. The combined chain conveying system comprises a combined chain, a driving sprocket and a driven sprocket. The solid hydrogen storage material is arranged on the combined chain. The driving sprocket is arranged on the shaft of a driving motor. Multiple sets of driven sprockets are arranged at the bottom of the reaction gas phase cavity and the periphery of the water tank. The combined chain forms a loop around the water-sealed reaction system through the driving sprocket and the driven sprocket, is used for continuous feeding of the solid hydrogen storage material, and realizes continuous and automatic operation of the hydrogen production reaction. The application solves the problem that the hydrolysis solid hydrogen storage material is difficult to be applied in batches. Through a comprehensive technical scheme, balance is realized in aspects of feeding, reaction, gas supply, heat dissipation and waste discharge.

Description

Technical Field

[0001] This application relates to the field of solid hydrogen storage materials technology, and in particular to a hydrogen release device and method for conveying hydrolyzed hydrogen storage materials via a sealed chain. Background Technology

[0002] Hydrogen energy, as a zero-carbon energy carrier, faces limitations in large-scale application due to the high cost and low efficiency of storage and transportation. Traditional high-pressure gaseous hydrogen storage (70 MPa) and liquid hydrogen storage (-253℃) suffer from significant safety risks and high energy consumption, respectively. Solid-state hydrogen storage technology, through the physical / chemical combination of materials and hydrogen, can increase hydrogen storage density by 5-10 times at ambient temperature and pressure, and is considered a key path for industrial breakthrough. With the increasing proportion of renewable energy, hydrogen energy needs to fulfill functions such as cross-seasonal energy storage and grid peak shaving. Solid-state hydrogen storage materials that can be produced by water electrolysis possess the characteristics of high hydrogen storage and release density, ambient temperature and pressure storage, and scalable production, and require no additional energy consumption during hydrogen production, making them a key technology for the large-scale utilization of hydrogen energy.

[0003] However, solid hydrogen storage materials that can be hydrolyzed to produce hydrogen, such as sodium hydride, sodium aluminum hydride, lithium aluminum hydride, lithium hydride, and calcium hydride, have poor air stability and are prone to reacting with humid air. In addition, they react rapidly with water, releasing a large amount of heat. Since these materials generally have low density, they usually react on the surface when directly put into water. The concentrated heat and the generation of hydrogen can cause an explosion. If the materials are sent underwater for reaction, it would be relatively safe, but the process is difficult to control. It is impossible to solve the problems of continuous material transportation, feeding, and controlled release of hydrogen. At present, there is no large-scale continuous hydrogen production device for this type of material. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a sealed material box conveyed by a combined chain-type conventional system, along with a process method and apparatus for water sealing and water circulation, to achieve continuous and controllable release of hydrogen from solid hydrogen storage materials, and in particular, solves the safety issues in the hydrogen release process of such materials.

[0005] The present invention adopts the following technical solution.

[0006] The first aspect of the present invention discloses a hydrogen release device for conveying hydrolyzed hydrogen storage material via a sealed chain, the device comprising a combined chain transport system and a water-sealed reaction system;

[0007] The water-sealed reaction system includes a water tank and a reaction gas phase chamber. The reaction gas phase chamber is located inside the water tank and is used for the hydrogen production reaction of solid hydrogen storage materials to release hydrogen.

[0008] The combined chain transmission system includes a combined chain, a drive sprocket, and driven sprockets. The solid hydrogen storage material is disposed on the combined chain, the drive sprocket is disposed on the shaft of the drive motor, and multiple sets of driven sprockets are respectively disposed at the bottom of the reaction gas phase chamber and around the water tank. The combined chain forms a loop around the water-sealed reaction system through the drive sprocket and driven sprockets for continuous feeding of the solid hydrogen storage material, thereby realizing the continuous and automated operation of the hydrogen production reaction.

[0009] Preferably, each set of drive sprockets and driven sprockets consists of two sets, and the two sets of chains of the same length form a combined chain. The drive motor is mounted on the motor platform and located on one side of the drive sprocket. The drive motor drives the drive sprocket, which in turn drives the driven sprocket to rotate, thereby realizing the transmission of the combined chain.

[0010] Preferably, a storage box support is provided between the combined chains, the solid hydrogen storage material is loaded in the storage box, the storage box is placed in the storage box support, and the storage box is a waterproof material box.

[0011] Preferably, the circuit includes: a feeding zone, a reaction zone, and a discharging zone;

[0012] The feeding zone is the part of the combined chain before it enters the water tank, and is used to install the storage box on the combined chain; the reaction zone is located at the lower part of the reaction gas phase chamber. When the combined chain is driven to the reaction zone, the storage box releases solid hydrogen storage material to carry out the hydrolysis hydrogenation reaction; the unloading zone is the part of the combined chain that is driven out of the water tank, and is used to eject the empty storage box. After ejection, the combined chain continues to move to the feeding zone to repeat the feeding of the storage box.

[0013] Preferably, the water tank is mounted on a water tank support, with an inlet pipe at the top and a drain pipe at the bottom, so as to maintain the water level balance of the water tank through continuous water inflow and outflow.

[0014] Preferably, the drainage pipe discharges the slurry from the bottom of the water tank and into the filtration device for water treatment. At the same time as the water is discharged, the heat generated by the reaction is carried away, thereby ensuring that the water temperature in the device is stable.

[0015] Preferably, the upper edge of the reaction gas phase chamber is higher than the upper edge of the water tank, and the upper part of the reaction gas phase chamber is provided with a hydrogen outlet and a pressure gauge for detecting the pressure inside the reaction gas phase chamber.

[0016] Preferably, when the hydrogen storage material is transported to the reaction zone through the combined chain transport system to start the reaction, the gas rises above the water surface and separates from the water, reaching the upper part of the reaction gas phase chamber to form a gas phase space. The hydrogen flows out through the gas outlet, and a return pipe is provided at the upper end of the gas outlet. The return pipe causes the water bubbles carried out by the hydrogen to form liquid in the chamber and return through the center. At the same time, the vapor carried out by the hydrogen condenses in the chamber, and the condensed water returns to the reaction gas phase chamber through the return pipe.

[0017] Preferably, a pressure regulating valve is provided at the upper end of the reflux pipe. Hydrogen is supplied to the hydrogen-using device after passing through the pressure regulating valve. The pressure regulating valve adjusts the pressure P in the reaction gas phase chamber. A water level difference ΔH is formed between the liquid surface outside the water tank and the liquid surface inside the reaction gas phase chamber, where P = ρgΔH.

[0018] Where ρ is the density of water, g is the acceleration due to gravity, and the pressure regulating valve ensures that the water level difference ΔH < H by adjusting the pressure P in the reaction gas chamber, which is used to prevent liquid from overflowing from the top of the water tank. H is the height from the bottom of the reaction gas chamber to the top of the water tank.

[0019] A second aspect of the present invention discloses a hydrogen release method, based on a hydrogen release device for conveying hydrolyzed hydrogen storage material via a sealed chain as described in the first aspect, comprising the following steps:

[0020] The storage boxes containing hydrogen storage materials are sequentially loaded onto the combined chain; water is added to the water tank through the water inlet pipe;

[0021] Turn on the drive motor to drive the combined chain transmission; when the combined chain enters the reaction gas phase chamber, open the storage box, and the hydrogen storage material reacts with water to release hydrogen.

[0022] The combined chain continues to drive, and when it leaves the reaction gas phase chamber, the empty storage box is popped open and a new storage box is inserted. The chain continues to drive and continuously feed and release hydrogen until the hydrogen demand is met.

[0023] Compared with the prior art, the beneficial effects of the present invention include at least the following:

[0024] 1. Current hydrogen release devices are mostly single sealed pressure vessels that release materials by feeding. However, this single-container method cannot guarantee the safe release and controllable continuous operation of highly active materials during the hydrogen release process. This invention achieves continuous feeding and release of materials by using a mechanical structure to continuously send a sealed material box underwater. The entire process can operate safely under low pressure, ensuring the safety of hazardous materials from production discharge → packaging → transportation → hydrogen release, and eliminating the risks of overheating, failure, fire and explosion.

[0025] 2. Conventional hydrolysis reactions typically involve feeding materials into the reactor in a single operation, making the process difficult to control, high-pressure, and dangerous, and impossible to stop midway. This invention achieves continuous feeding of solid hydrogen storage materials through a chain-driven material conveying system. The storage boxes, not opened underwater, remain safe, solving the problem of difficult feeding and conveying of powdered and granular materials. It also avoids the problems of uneven reaction, high surface concentration, and safety hazards caused by explosive reactions on the surface of powdered and granular hydrogen storage materials upon contact with water. Therefore, the system can be started and stopped at any time, and the overall pressure and gas flow rate are controllable.

[0026] 3. Traditional hydrolysis reactions require the addition of a heat dissipation system, such as a cooling water jacket for the reactor or an enhanced cooling fin device. This invention uses a top-inlet and bottom-outlet slurry circulation method to achieve waste discharge, concentration control of the solution in the reaction zone, and removal of reaction heat. It achieves control of the reaction water concentration and heat removal through a continuous water inlet and outlet process.

[0027] 4. The present invention uses a combined reaction chamber water tank to achieve partitioning of material reaction and water sealing of gas. The pressure can be adjusted within a certain range by controlling the water level through pressure valves, thereby meeting the hydrogen pressure requirements of fuel cells or other hydrogen-using devices.

[0028] 5. Traditional hydrolysis hydrogenation devices cannot achieve long-term hydrogen supply. This invention is suitable for scenarios requiring long-term continuous low-pressure hydrogen use and solves the problem of the difficulty in mass application of hydrolysis-based solid hydrogen storage materials. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the hydrogen release device in this invention;

[0030] Figure 2 This is a structural diagram of the hydrogen release device in this invention;

[0031] Figure 3 This is a side view of the hydrogen release device in this invention;

[0032] Figure 4 This is a cross-sectional schematic diagram of the combination of the water tank and the reaction gas phase chamber in this invention;

[0033] In the diagram: 1. Reaction gas phase chamber; 2. Water tank; 3. Filter device; 4. Water tank support; 5. Water inlet pipe; 6. Storage box support; 7. Combined chain; 8. Drive motor; 9. Motor platform; 10. Pressure regulating valve; 11. Return pipe; 12. Gas outlet; 13. Sprocket support; 14. Discharge area; 15. Pressure gauge; 16. Driven sprocket; 17. Feeding area; 18. Drive sprocket; 19. Reaction zone; 20. Drainage pipe. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this invention. The embodiments described in this application are merely some embodiments of this invention, and not all embodiments. Based on the spirit of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this invention.

[0035] like Figure 1-3 As shown, Embodiment 1 of the present invention discloses a hydrogen release device for conveying hydrolyzed hydrogen storage material via a sealed chain, achieving safe, low-pressure, and continuous hydrogen production and supply.

[0036] The device includes a combined chain transport system and a water-sealed reaction system.

[0037] The water-sealed reaction system includes a water tank 2 and a reaction gas phase chamber 1. The reaction gas phase chamber 1 is located inside the water tank 2 and is used for the hydrogen production reaction of solid hydrogen storage materials to release hydrogen.

[0038] The combined chain transmission system includes a combined chain 7, a drive sprocket 18, and driven sprockets 16. The solid hydrogen storage material is disposed on the combined chain 7. The drive sprocket 18 is disposed on the shaft of the drive motor 8. The multiple sets of driven sprockets 16 are respectively disposed at the bottom of the reaction gas phase chamber 1 and around the water tank 2. The combined chain 7 forms a loop around the water-sealed reaction system through the drive sprocket 18 and driven sprockets 16 for continuous feeding of the solid hydrogen storage material, thereby realizing the continuous and automated operation of the hydrogen production reaction.

[0039] Specifically, the combined chain transmission system includes: a combined chain 7, a drive sprocket 18, and a driven sprocket 16. The drive sprocket 18 is mounted on the shaft of the drive motor 8, and the driven sprocket 16 is mounted at various corners and support points of the combined chain transmission system to conduct and support the combined chain 7. The combined chain 7 forms a loop around the water-sealed reaction system through the drive sprocket 18 and the driven sprocket 16.

[0040] Each set of drive sprockets 18 and driven sprockets 16 consists of two sets of chains of the same length, forming a combined chain 7. The drive motor 8 is mounted on the motor platform 9 and located on one side of the drive sprocket 18. The drive motor 8 drives the drive sprocket 18, thereby causing the driven sprocket 16 to rotate, thus realizing the transmission of the combined chain 7.

[0041] The circuit includes a feeding zone 17, a reaction zone 19, and a discharge zone 14. The feeding zone 17 is the part before the combined chain 7 enters the water tank 2, and is used to install the storage box on the combined chain 7. The reaction zone 19 is the lower part of the reaction gas phase chamber 1. When the combined chain 7 is driven to the reaction zone 19, the storage box opens, and the storage box releases solid hydrogen storage material to carry out the hydrolysis hydrogenation reaction. The discharge zone 14 is the part of the combined chain 7 that is driven out of the water tank 2, and is used to eject the empty storage box. After ejection, the combined chain 7 continues to move to the feeding zone 17 to feed the storage box.

[0042] In a preferred but non-limiting embodiment of the invention, such as Figure 3 As shown, one set of drive sprockets 18 and nine sets of driven sprockets 16 are provided. The drive sprockets 18 are mounted on the shaft of the drive motor 8, and the nine sets of driven sprockets 16 are respectively mounted at the corners of the water tank 2 and the reaction gas chamber 1, and are connected to them through sprocket brackets 13.

[0043] The two sets of chains move synchronously. A storage box support 6 is provided between the combined chains 7. The material is loaded into the storage box. The storage box can be snapped into the storage box support 6 by an external robotic arm. The storage box can be a capsule-type or other waterproof material box to prevent water from entering the material before it enters the reaction zone 19 and causing a reaction.

[0044] When the storage box is transported to the reaction zone 19 of the reaction gas chamber 1, the storage box is opened by the corresponding mechanical device, and the material is released into the water for reaction. The empty storage box is then transported to the outside of the reaction gas chamber 1 by the combined chain 7. In the unloading zone 14, the empty storage box is ejected by an external ejection device. The combined chain 7 continues to move to the loading zone 17 for loading. The external robotic arm snaps the new storage box into the storage box bracket 6 and then continues to transport it into the reaction zone to form a continuous cycle of hydrogen supply reaction.

[0045] The combined chain transport system can realize the entire cycle process of hydrogen storage material feeding, sealed transportation, underwater reaction, shell removal and refeeding, thereby realizing the continuous and automated operation of hydrogen production reaction.

[0046] The water-sealed reaction system consists of a water tank 2, a water tank support 4, and a reaction gas phase chamber 1. The upper part of the water tank 2 is connected to a water inlet pipe 5, and the bottom has a drain pipe 20. The water level of the water tank 2 is kept basically balanced by continuous water inlet and drainage.

[0047] The water tank 2 is mounted on the water tank support 4, and the reaction gas phase chamber 1 is installed inside the water tank 2. Its upper part can be higher than the edge of the water tank 2 according to the gas pressure (pressure of fuel cell or hydrogen device) requirements. The upper part of the reaction gas phase chamber 1 has a hydrogen outlet 12 and a pressure gauge 15 for detecting the pressure inside the reaction gas phase chamber 1.

[0048] Specifically, when the hydrogen storage material is transported to the reaction zone 19 through the combined chain transport system to start the reaction, the gas rises above the water surface and separates from the water, reaching the upper part of the reaction gas phase chamber 1 to form a gas phase space. The hydrogen flows out through the outlet pipe 12, and the upper end of the outlet pipe 12 has a cooling return pipe 11. The return pipe 11 is a cavity with an increased diameter, which allows the water bubbles carried out by the hydrogen to form liquid in the cavity and return through the center. At the same time, some of the vapor carried out by the hydrogen condenses in the cavity, and the condensed water returns to the reaction gas phase chamber 1 through the return pipe 11. The hydrogen gas is continuously supplied to the hydrogen-using device after passing through the upper pressure regulating valve 10.

[0049] The liquid level in water tank 2 is used to ensure that hydrogen cannot escape from the outside of water tank 1; the liquid level in water tank 2 represents the pressure. When the pressure of the reaction gas chamber 1 changes, the water level outside water tank 2 will fluctuate up and down to form a liquid seal. Within a certain pressure change range, the liquid pressure can ensure that hydrogen will not escape from the outside, but will only be output through the gas outlet 12.

[0050] according to Figure 4 The pressure control of the reaction gas phase chamber 1 is explained. After the material, namely the hydrogen storage material, reacts with water, hydrogen fills the reaction gas phase chamber 1 and is sent out from the hydrogen outlet 12. The pressure P inside the reaction gas phase chamber 1 can be adjusted by the pressure regulating valve 10 of the outlet 12. The corresponding water level difference ΔH is formed between the liquid surface outside the water tank 2 and the liquid surface inside the reaction gas phase chamber 1, where P = ρgΔH, ρ is the density of water and g is the acceleration due to gravity. The pressure regulating valve 10 can adjust the pressure within a certain range, ensuring that the water level difference ΔH < H within the adjustment range. H represents the height from the bottom of the reaction gas phase chamber 1 to the top of the water tank 2 to prevent liquid from overflowing from the top of the water tank 2.

[0051] This application can ensure a stable output of hydrogen under a certain pressure simply by using the pressure regulating valve 10 in conjunction with the water level. The control is simple, there is no high-pressure equipment, and with a reasonable chain drive speed, safe operation can be achieved throughout the entire process.

[0052] The upper part of the water tank 2 is equipped with a water inlet pipe 5, which can continuously add water to maintain the liquid level. The lower part of the water tank 2 is equipped with a drain pipe 20, which continuously discharges the slurry with a higher concentration at the bottom and enters the filter device 3 for water treatment. At the same time as the water is discharged, the heat generated by the reaction is discharged, thereby ensuring the water temperature in the device is stable.

[0053] The entire device regulates the hydrogen supply rate within a certain range by adjusting the transmission rate of the combined chain transmission system and the inlet and outlet rates of water.

[0054] This application can use a modular storage box, which can significantly reduce the safety issues of hydrogen release from the reaction of hydrolyzed solid hydrogen storage materials with water. With the help of an external robot, the filling and unloading of the material box can be realized, thereby achieving continuous and uninterrupted low-pressure hydrogen release, which can be used for long-term hydrogen supply.

[0055] Increasing the chain conveyor speed allows for a greater amount of reactants to enter the water tank immediately, thereby increasing the amount of gas produced. The water inlet and outlet are used to control the concentration of the reaction solution.

[0056] Embodiment 2 of the present invention discloses a hydrogen release method, based on the hydrogen release device for conveying hydrolyzed hydrogen storage material using a sealed chain as described in Embodiment 1, comprising the following steps:

[0057] Step 1: Sequentially load the storage boxes containing hydrogen storage materials onto the combined chain 7;

[0058] Step 2: Add water to water tank 2 through water inlet pipe 5;

[0059] Step 3: Turn on the drive motor 8, adjust the motor speed, and drive the combined chain 7 for transmission;

[0060] Step 4: When the combined chain 7 enters the reaction gas phase chamber 1, the storage box is opened, and the hydrogen storage material reacts with water to release hydrogen.

[0061] Step 5: The combined chain 7 continues to drive. When the combined chain 7 leaves the reaction gas phase chamber 1, the storage box is popped open and a new storage box is put in. The drive continues to continuously feed and release hydrogen until the hydrogen demand is met.

[0062] In a specific implementation, when 10 storage boxes containing 20g of hydrogen storage material are sequentially installed into the storage box bracket 6 on the combined chain 7, tap water is added to the water tank 2 through the water inlet pipe 5, the drive motor 8 is turned on, and the motor speed is adjusted to 10 rpm. When the storage box enters the reaction gas phase chamber 1, it opens, and the hydrogen storage material begins to react with water to release hydrogen. The pressure of hydrogen in the reaction gas phase chamber 1 is adjusted to 0.5kPa through the pressure regulating valve 10. At this time, the hydrogen release flow rate observed by the external flow meter is about 22L±1L.

[0063] In summary, this invention discloses a sealed chain conveying device and method for releasing hydrogen from hydrolyzed hydrogen storage materials. The material outside the chamber is transported below the water surface via a conveyor chain, providing a modular and fixed storage and hydrogen release method for hydrolyzed solid hydrogen storage materials. Powdered or granular hydrolyzed solid hydrogen storage materials with poor air stability are encapsulated in a sealed, waterproof storage box. The modular storage box can be directly used in the hydrogen release device. Furthermore, the combined reaction chamber and water tank achieve zoned material reaction, water sealing of the gas, and pressure control within a certain range. Simultaneously, a top-inlet, bottom-outlet slurry circulation system is used to discharge waste, control the concentration of the solution in the reaction zone, and remove reaction heat. Through the above comprehensive technical solution, a balance is achieved in terms of feeding, reaction, gas supply, heat dissipation, and waste discharge.

[0064] Compared with the prior art, the beneficial effects of the present invention include at least the following:

[0065] 1. Current hydrogen release devices are mostly single sealed pressure vessels that release materials by feeding. However, this single-container method cannot guarantee the safe release and controllable continuous operation of highly active materials during the hydrogen release process. This invention achieves continuous feeding and release of materials by using a mechanical structure to continuously send a sealed material box underwater. The entire process can operate safely under low pressure, ensuring the safety of hazardous materials from production discharge → packaging → transportation → hydrogen release, and eliminating the risks of overheating, failure, fire and explosion.

[0066] 2. Conventional hydrolysis reactions typically involve feeding materials into the reactor in a single operation, making the process difficult to control, high-pressure, and dangerous, and impossible to stop midway. This invention achieves continuous feeding of solid hydrogen storage materials through a chain-driven material conveying system. The storage boxes, not opened underwater, remain safe, solving the problem of difficult feeding and conveying of powdered and granular materials. It also avoids the problems of uneven reaction, high surface concentration, and safety hazards caused by explosive reactions on the surface of powdered and granular hydrogen storage materials upon contact with water. Therefore, the system can be started and stopped at any time, and the overall pressure and gas flow rate are controllable.

[0067] 3. Traditional hydrolysis reactions require the addition of a heat dissipation system, such as a cooling water jacket for the reactor or an enhanced cooling fin device. This invention uses a top-inlet and bottom-outlet slurry circulation method to achieve waste discharge, concentration control of the solution in the reaction zone, and removal of reaction heat. It achieves control of the reaction water concentration and heat removal through a continuous water inlet and outlet process.

[0068] 4. The present invention uses a combined reaction chamber water tank to achieve partitioning of material reaction and water sealing of gas. The pressure can be adjusted within a certain range by controlling the water level through pressure valves, thereby meeting the hydrogen pressure requirements of fuel cells or other hydrogen-using devices.

[0069] 5. Traditional hydrolysis hydrogenation devices cannot achieve long-term hydrogen supply. This invention is suitable for scenarios requiring long-term continuous low-pressure hydrogen use and solves the problem of the difficulty in mass application of hydrolysis-based solid hydrogen storage materials.

[0070] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of the present invention. Any modifications or equivalent substitutions that do not depart from the spirit and scope of the present invention should be covered within the protection scope of the claims of the present invention.

Claims

1. A hydrogen release device for conveying hydrolyzed hydrogen storage material via a sealed chain, characterized in that: The device includes a combined chain transport system and a water-sealed reaction system; The water-sealed reaction system includes a water tank (2) and a reaction gas chamber (1). The reaction gas chamber (1) is located inside the water tank (2) and is used for hydrogen production reaction of solid hydrogen storage materials to release hydrogen. The combined chain transport system includes: a combined chain (7), a drive sprocket (18), and a driven sprocket (16). The solid hydrogen storage material is disposed on the combined chain (7). The drive sprocket (18) is disposed on the shaft of the drive motor (8). Multiple sets of driven sprockets (16) are respectively disposed at the bottom of the reaction gas phase chamber (1) and around the water tank (2). The combined chain (7) forms a loop around the water-sealed reaction system through the drive sprocket (18) and the driven sprockets (16) for continuous feeding of the solid hydrogen storage material. The loop includes: a feeding zone (17), a reaction zone (19), and a discharging zone (10). 14), the feeding area (17) is the part before the combined chain (7) enters the water tank (2), and is used to install the storage box on the combined chain (7); the reaction area (19) is located at the lower part of the reaction gas phase chamber (1). When the combined chain (7) is driven to the reaction area (19), the storage box releases solid hydrogen storage material to carry out hydrolysis hydrogenation reaction; the unloading area (14) is the part of the combined chain (7) driven out of the water tank (2), and is used to pop out the empty storage box. After popping out, the combined chain (7) continues to move to the feeding area (17) to repeat the feeding of the storage box, so as to realize the continuous automated operation of the hydrogen production reaction.

2. The hydrogen release device for conveying hydrolyzed hydrogen storage material via a sealed chain according to claim 1, characterized in that: Each set of drive sprockets (18) and driven sprockets (16) consists of two sets of chains of the same length, forming a combined chain (7). The drive motor (8) is mounted on the motor platform (9) and located on one side of the drive sprocket (18). The drive motor (8) drives the drive sprocket (18), causing the driven sprocket (16) to rotate, thus realizing the transmission of the combined chain (7).

3. The hydrogen release device for conveying hydrolyzed hydrogen storage material via a sealed chain according to claim 1, characterized in that: A storage box support (6) is provided between the combined chains (7). Solid hydrogen storage material is loaded in the storage box, which is placed in the storage box support (6). The storage box is a waterproof material box.

4. The hydrogen release device for conveying hydrolyzed hydrogen storage material via a sealed chain according to claim 1, characterized in that: The water tank (2) is mounted on the water tank support (4). The upper part of the water tank (2) is provided with an inlet pipe (5) and the bottom is provided with a drain pipe (20). The water level of the water tank (2) is kept balanced by continuous water inlet and drainage.

5. The hydrogen release device for conveying hydrolyzed hydrogen storage material via a sealed chain according to claim 4, characterized in that: The drainage pipe (20) discharges the slurry at the bottom of the water tank (2) and enters the filter device (3) for water treatment. At the same time as the water is discharged, the heat generated by the reaction is carried out, thereby ensuring that the water temperature in the device is stable.

6. The hydrogen release device for conveying hydrolyzed hydrogen storage material via a sealed chain according to claim 1, characterized in that: The upper edge of the reaction gas chamber (1) is higher than the upper edge of the water tank (2). The upper part of the reaction gas chamber (1) is provided with a hydrogen outlet (12) and a pressure gauge (15) for detecting the pressure inside the reaction gas chamber (1).

7. The hydrogen release device for conveying hydrolyzed hydrogen storage material via a sealed chain according to claim 5, characterized in that: When the hydrogen storage material is transported to the reaction zone (19) through the combined chain transport system to start the reaction, the gas rises above the water surface and separates from the water, reaching the upper part of the reaction gas phase chamber (1) to form a gas phase space. The hydrogen flows out through the gas outlet (12). A return pipe (11) is provided at the upper end of the gas outlet (12). The return pipe (11) causes the water bubbles carried out by the hydrogen to form liquid in the chamber and return through the center. At the same time, the vapor carried out by the hydrogen condenses in the chamber. The condensed water returns to the reaction gas phase chamber (1) through the return pipe (11).

8. The hydrogen release device for conveying hydrolyzed hydrogen storage material via a sealed chain according to claim 7, characterized in that: A pressure regulating valve (10) is provided at the upper end of the return pipe (11). Hydrogen is supplied to the hydrogen-using device after passing through the pressure regulating valve (10). The pressure regulating valve (10) adjusts the pressure P in the reaction gas phase chamber (1). A water level difference ΔH is formed between the liquid surface outside the water tank (2) and the liquid surface inside the reaction gas phase chamber (1), where P = ρgΔH. Where ρ is the density of water, g is the gravitational acceleration, and the pressure regulating valve (10) ensures that the water level difference ΔH < H by adjusting the pressure P of the reaction gas chamber (1), in order to prevent the liquid from overflowing from the top of the water tank (2), where H is the height from the bottom of the reaction gas chamber (1) to the top of the water tank (2).

9. A hydrogen release method, based on a hydrogen release device for conveying hydrolyzed hydrogen storage material using a sealed chain according to any one of claims 1-8, characterized in that: Includes the following steps: The storage boxes containing hydrogen storage materials are sequentially loaded onto the combined chain (7); water is added to the water tank (2) through the water inlet pipe (5); Turn on the drive motor (8) to drive the combined chain (7) for transmission; when the combined chain (7) enters the reaction gas phase chamber (1), open the storage box and the hydrogen storage material reacts with water to release hydrogen; The combined chain (7) continues to drive. When the combined chain (7) leaves the reaction gas phase chamber (1), the empty storage box is popped open and a new storage box is put in. The transmission continues to carry out continuous feeding and hydrogen release reaction until the hydrogen demand is met.

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