A hydrogen storage device based on liquid organic hydrogen storage

Abstract

The present invention discloses a hydrogen storage device based on liquid organic hydrogen storage, which relates to the technical field of hydrogen storage devices. It includes a hydrogen storage assembly. The hydrogen storage assembly includes an outer protection bottle, a hydrogen-carrying storage bottle, and a dehydrogenation storage bottle. A push-button valve for sealing the inner cavity of the outer protection bottle is assembled at the top of the outer protection bottle. The hydrogen-carrying storage bottle and the dehydrogenation storage bottle are symmetrically arranged in the inner cavity of the outer protection bottle. A pumping tube and a partition plate are arranged in the hydrogen-carrying storage bottle, and a discharge tube is arranged in the dehydrogenation storage bottle. By storing the hydrogen storage carrier and the dehydrogenation carrier in the hydrogen-carrying storage bottle and the dehydrogenation storage bottle respectively, the present invention avoids their mixing, maintains the original concentration of the hydrogen storage carrier, and thus ensures that the hydrogen storage and hydrogen release efficiency are not affected by impurities or concentration reduction. In addition, the single pumping volume in the cylinder is small, so that the heat can contact the hydrogen storage carrier more evenly, promoting the complete release of hydrogen and improving the use efficiency of the hydrogen storage carrier.

Description

Technical Field

[0001] The present invention relates to the technical field of hydrogen storage equipment, and particularly to a hydrogen storage equipment based on liquid organic hydrogen storage. Background Art

[0002] The technology of liquid organic hydrogen storage refers to a technology that uses certain liquid organic compounds containing unsaturated carbon bonds, such as olefins, alkynes, or aromatic hydrocarbons, as hydrogen storage carriers to achieve hydrogen storage and release through a one-to-one reversible reaction. This technology utilizes the chemical reaction characteristics of specific organic compounds during the hydrogenation and dehydrogenation processes and can safely store and transport hydrogen at normal temperature and pressure. In short, a liquid organic hydrogen carrier is a liquid that can be reversibly hydrogenated and dehydrogenated. During the dehydrogenation stage, hydrogen is the only product, and the carrier liquid returns to its original state and is hydrogenated again.

[0003] With the increasing global demand for clean energy, hydrogen energy, as a clean and efficient energy form, has received extensive attention. However, the storage and transportation of hydrogen have always been the key bottlenecks restricting the wide application of hydrogen energy. Traditional hydrogen storage methods include high-pressure gas cylinders, cryogenic liquefied hydrogen, etc., but these methods have problems such as high safety hazards, high costs, and low energy densities. To overcome these problems, scientists have explored various new hydrogen storage technologies, and among them, hydrogen storage equipment based on liquid organic hydrogen storage has attracted much attention due to its unique advantages.

[0004] Chinese patent application with publication number CN118623199A discloses a hydrogen storage equipment based on liquid organic hydrogen storage technology, including an outer protective tank. The outer protective tank provides outer protection and structural support, enhances the overall strength and safety of the equipment, and prevents the influence of external impacts and environmental factors on the internal hydrogen storage components. An inner hydrogen storage tank is installed inside the outer protective tank. The inner hydrogen storage tank is used to store liquid hydrogen and is the core component for storing liquid organic hydrides, which is the key part to achieve hydrogen storage. A protective sleeve plate is installed on the inner edge surface of the outer protective tank. The inner edge surface of the protective sleeve plate is in contact with the outer edge surface of the inner hydrogen storage tank. The protective sleeve plate is used to protect the inner hydrogen storage tank, provide additional protection for the inner hydrogen storage tank, and reduce wear and damage. An anti-slip plate is installed on the outer edge surface of the outer protective tank. The anti-slip plate increases the friction between the hydrogen storage equipment and the contact surface, prevents sliding, and improves the placement stability. The anti-slip plate is used for anti-slip treatment during transportation. A supporting cushion seat is installed at the bottom of the inner cavity of the outer protective tank. The supporting cushion seat is used to support and hold the inner hydrogen storage tank to ensure its stable position.

[0005] In recent years, the liquid organic hydrogen storage technology has been highly favored because it can store a large amount of hydrogen at normal temperature and pressure. This technology uses specific organic compounds (called hydrogenation carriers) to undergo a reversible chemical reaction with hydrogen, storing the hydrogen in these compounds. When hydrogen is needed, these compounds are heated and other means are used to release hydrogen. The traditional way to release hydrogen is to heat the hydrogen storage carrier bottle, but existing hydrogen storage carrier bottles often have difficulty ensuring the uniform and tight contact between the hydrogen storage carrier and the heat source, resulting in incomplete reaction of some hydrogen storage carriers and affecting the overall hydrogen storage efficiency. In addition, during the hydrogen release process, the hydrogen storage carrier is converted into a dehydrogenation carrier after heating, causing the unreacted hydrogen storage carrier to be mixed with the dehydrogenation carrier. This not only reduces the original concentration of the hydrogen storage carrier but also may introduce impurities, thus affecting the subsequent hydrogen storage and release efficiency.

[0006] Therefore, the present invention proposes a hydrogen storage device based on liquid organic hydrogen storage to solve the above problems. Summary of the Invention

[0007] In view of the problems existing in the above-mentioned prior art, the present invention is proposed.

[0008] To solve the above technical problems, the present invention provides the following technical solutions: A hydrogen storage device based on liquid organic hydrogen storage, comprising a hydrogen storage assembly and a reaction assembly;

[0009] The hydrogen storage assembly includes an outer protection bottle, a hydrogen-carrying storage bottle, and a dehydrogenation storage bottle. A push-button valve is assembled at the top of the outer protection bottle. The hydrogen-carrying storage bottle and the dehydrogenation storage bottle are symmetrically arranged in the inner cavity of the outer protection bottle. A pumping tube and a partition plate are arranged in the hydrogen-carrying storage bottle, and a discharge tube is arranged in the dehydrogenation storage bottle;

[0010] The reaction assembly includes a reaction cylinder, an elastic structure, and an air intake structure. The air intake structure is arranged at the top of the hydrogen-carrying storage bottle and is communicated with the inner cavity of the hydrogen-carrying storage bottle. The reaction cylinder is arranged between the push-button valve and the hydrogen-carrying storage bottle and is communicated with the inner cavities of the hydrogen-carrying storage bottle and the dehydrogenation storage bottle through the pumping tube and the discharge tube respectively. The push-button valve acts on the elastic structure through the reaction cylinder to drive the elastic structure to compress the air intake structure, and the air flow inside the air intake structure is compressed into the hydrogen-carrying storage bottle to push the partition plate to move so that the hydrogenation carrier enters the hydrogen-carrying storage bottle through the pumping tube.

[0011] As a preferred solution of the hydrogen storage device based on liquid organic hydrogen storage of the present invention, wherein: the air intake structure is configured as a gas transmission tube. The gas transmission tube includes a spiral-shaped sealed tube body, and two groups of short tubes are connected to both ends of the spiral-shaped sealed tube body. The group of short tubes far from the hydrogen-carrying storage bottle is the upper tube, and the other group of short tubes is the lower tube. The spiral-shaped sealed tube body is connected to the hydrogen-carrying storage bottle through the lower tube, and the spiral-shaped sealed tube body is connected to the inner cavity of the outer protection bottle through the upper tube;

[0012] A set of split sealing components are sealed inside the lower pipe. The elastic structure is nested on the upper pipe and presses on the spiral sealing pipe body. When the upper pipe is sealed, the spiral sealing pipe body shrinks and impacts the sealing components to separate the sealing components. An air duct for gas to pass through is formed between the separated sealing components, and the gas enters the hydrogen storage cylinder through the air duct to push the partition plate to move.

[0013] As a preferred solution of the hydrogen storage device based on liquid organic hydrogen storage according to the present invention, wherein: a set of support plates are supported at the bottom of the reaction cylinder. The support plates are clamped and move along the inside of the outer protection bottle. An installation groove adapted to the reaction cylinder is provided at the upper part of the support plate. A set of rectangular abutting plates are provided at the lower part of the support plate. The rectangular abutting plates press on the upper pipe to seal the upper opening of the spiral sealing pipe body.

[0014] As a preferred solution of the hydrogen storage device based on liquid organic hydrogen storage according to the present invention, wherein: the elastic structure includes an integrated fixed disk and multiple legs. The fixed disk is nested on the upper pipe. The fixed disk is subjected to a thrust force and squeezes the multiple legs to contract, and simultaneously squeezes the spiral sealing pipe body to contract.

[0015] As a preferred solution of the hydrogen storage device based on liquid organic hydrogen storage according to the present invention, wherein: the reaction cylinder includes an integrated annular cylinder and a connecting pipe. A flange is assembled at the pipe orifice of the connecting pipe. A sleeve is provided inside the annular cylinder, and the sleeve is opposite to the port of the pumping pipe.

[0016] Sealing rings are closely attached to the surfaces of the pumping pipe and the discharge pipe, and the sealing rings are fixed to the bottom of the reaction cylinder.

[0017] As a preferred solution of the hydrogen storage device based on liquid organic hydrogen storage according to the present invention, wherein: the push-button valve includes a valve body threadedly connected to the top of the outer protection bottle. A connecting pipe is connected to the outer surface of the valve body. A valve core rotates inside the valve body. A flow channel is provided inside the valve core. The flow channel penetrates the bottom and side surfaces of the valve core to form a lower opening and a side opening. The side opening is opposite to the connecting pipe, and the lower opening is opposite to the connecting pipe of the reaction cylinder. The hydrogen gas in the reaction cylinder passes through the flow channel of the valve core and is released from the connecting pipe of the valve body.

[0018] As a preferred solution of the hydrogen storage device based on liquid organic hydrogen storage according to the present invention, wherein: a valve rod is connected to the top of the valve core, and a hand wheel is fixed to the end of the valve rod.

[0019] A limiting groove is provided at the upper part of the valve core. A limiting strip is arranged in the limiting groove and fixed to the valve body. The valve core is fixed with an arc-shaped limiting piece. A limiting piece clamping plate is fixed inside the outer protection bottle, and the arc-shaped limiting piece is rotationally clamped inside the limiting piece clamping plate.

[0020] As a preferred scheme of the hydrogen storage device based on liquid organic hydrogen storage of the present invention, wherein: the sealing assembly is arranged in the lower pipe. The sealing assembly includes a central sealing piece, a side sealing piece and a limiting ring piece. The central sealing piece and the limiting ring piece are fixed in the lower pipe, and the side sealing piece is arranged between the central sealing piece and the limiting ring piece.

[0021] As a preferred scheme of the hydrogen storage device based on liquid organic hydrogen storage of the present invention, wherein: the outer protection bottle is arranged in a split clamping connection. A clamp is provided outside the split outer protection bottle, and multiple buffer strips are inserted inside the outer protection bottle. A shock pad is assembled at the bottom of the outer protection bottle. The outer protection bottle connects the hydrogen-carrying storage bottle and the dehydrogenation storage bottle through the buffer strips and the shock pad.

[0022] As a preferred scheme of the hydrogen storage device based on liquid organic hydrogen storage of the present invention, wherein: a plurality of semi-circular grooves are annularly formed on the outer peripheral surface of the partition plate, and sealing rubber strips for sealing the gap between the hydrogen-carrying storage bottle and the partition plate are embedded in the semi-circular grooves.

[0023] The beneficial effects of the present invention: By providing a push-button valve at the top of the protection bottle, the operator can achieve precise control of hydrogen generation, storage and release through simple handwheel operation, ensuring the safety and controllability of gas transmission, realizing the automation of the hydrogen storage and hydrogen release processes, simplifying the operation process. In addition, by storing the hydrogen storage carrier and the dehydrogenation carrier in the hydrogen-carrying storage bottle and the dehydrogenation storage bottle respectively, the mixing of the two is avoided, maintaining the original concentration of the hydrogen storage carrier, thus ensuring that the hydrogen storage and hydrogen release efficiency is not affected by impurities or concentration reduction; in addition, the single pumping volume in the reaction cylinder is small, enabling the heat to contact the hydrogen storage carrier more evenly, promoting the complete release of hydrogen, and improving the utilization efficiency of the hydrogen storage carrier. Brief Description of the Drawings

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for description in the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0025] Figure 1 It is a schematic diagram of the external structure of a hydrogen storage device based on liquid organic hydrogen storage;

[0026] Figure 2 This is a schematic diagram of the structural details at the outer protective bottle in the present invention;

[0027] Figure 3 This is a schematic diagram of the internal structure of a hydrogen storage device based on liquid organic hydrogen storage;

[0028] Figure 4 This is a partial structural schematic diagram of the hydrogen storage assembly in the present invention;

[0029] Figure 5 This is a schematic diagram of the structural details at the partition board in the present invention;

[0030] Figure 6 This is a schematic diagram of the structural details at the push - type valve in the present invention;

[0031] Figure 7 This is an axonometric view of the structural details at the push - type valve in the present invention;

[0032] Figure 8 This is a schematic diagram of the structural details at the reaction cylinder in the present invention;

[0033] Figure 9 This is a schematic diagram of the structural details at the support plate in the present invention;

[0034] Figure 10 This is a schematic diagram of the structure of the spiral - shaped sealing tube body in the present invention;

[0035] Figure 11 This is a schematic diagram of the structure of the arc - shaped limiting piece in the present invention;

[0036] Figure 12 For Figure 7 Enlarged view of the structure of part A;

[0037] Figure 13 For Figure 10 Enlarged view of the structure of part B.

[0038] Reference numerals: 11, outer protection bottle; 111, push-button valve; 1111, valve body; 1112, connecting pipe; 1113, valve core; 1114, flow channel; 1115, valve stem; 1116, handwheel; 1117, limit groove; 1118, limit strip; 1119, arc-shaped limit piece; 11191, limit piece clamping plate; 112, diversion port; 113, clamp; 114, buffer strip; 115, shock pad; 12, hydrogen-carrying storage bottle; 121, pumping pipe; 122, partition plate; 1221, sealing rubber strip; 13, dehydrogenation storage bottle; 131, discharge pipe; 14, intake structure; 141, spiral sealing pipe body; 142, short pipe; 15, reaction cylinder; 151, support plate; 152, rectangular abutting plate; 153, sealing ring; 154, sleeve; 16, elastic structure; 161, fixed disk; 162, support leg; 17, sealing assembly; 171, central sealing piece; 172, side sealing piece; 173, limit ring piece; 174, elastic telescopic rod. Detailed implementation manners

[0039] To make the above objects, features, and advantages of the present invention more obvious and understandable, the following will describe the detailed implementation manners of the present invention with reference to the accompanying drawings of the specification.

[0040] In the following description, many specific details are set forth to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0041] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that can be included in at least one implementation manner of the present invention. The phrase "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that excludes other embodiments.

[0042] Referring to Figures 1 - 9 as shown, the present invention provides a hydrogen storage device based on liquid organic hydrogen storage, including a hydrogen storage assembly and a reaction assembly;

[0043] The hydrogen storage assembly includes an outer protection bottle 11, a hydrogen-carrying storage bottle 12, and a dehydrogenation storage bottle 13. A push-button valve 111 is assembled at the top of the outer protection bottle 11. The push-button valve 111 is used to seal the inner cavity of the outer protection bottle 11. The hydrogen-carrying storage bottle 12 and the dehydrogenation storage bottle 13 are symmetrically arranged in the inner cavity of the outer protection bottle 11. A pumping pipe 121 and a partition plate 122 are provided in the hydrogen-carrying storage bottle 12, and a discharge pipe 131 is provided in the dehydrogenation storage bottle 13;

[0044] A plurality of diversion ports 112 are opened at the bottom of the outer protection bottle 11.

[0045] Specifically, the hydrogen storage bottle 12 and the dehydrogenation storage bottle 13 are arranged as semi-circular sealed cylinders, and the hydrogen storage bottle 12 and the dehydrogenation storage bottle 13 are closely attached and arranged in the inner cavity of the outer protection bottle 11. The hydrogen storage bottle 12 is used to store the hydrogenated carrier, and the dehydrogenation storage bottle 13 is used to store the dehydrogenated carrier.

[0046] The generating assembly includes a generating cylinder 15, an elastic structure 16, and an air intake structure 14. The air intake structure 14 is arranged at the top of the hydrogen storage bottle 12 and is communicated with the inner cavity of the hydrogen storage bottle 12. The generating cylinder 15 is arranged between the push-button valve 111 and the hydrogen storage bottle 12 or the dehydrogenation storage bottle 13, and is communicated with the inner cavities of the hydrogen storage bottle 12 and the dehydrogenation storage bottle 13 through a pumping tube 121 and a discharge tube 131 respectively. The push-button valve 111 acts on the elastic structure 16 through the generating cylinder 15 to drive the elastic structure 16 to compress the air intake structure 14. The air flow inside the air intake structure 14 is compressed into the hydrogen storage bottle 12 to push the partition plate 122 to move so that the hydrogenated carrier enters the hydrogen storage bottle 12 through the pumping tube 121.

[0047] As Figures 7 - 10 shown, the air intake structure 14 is configured as a gas transmission tube. The gas transmission tube includes a spiral sealed tube body 141, and short tubes 142 are connected to both ends of the spiral sealed tube body 141. The two groups of short tubes 142 are respectively arranged on both sides of the spiral sealed tube body 141. The side facing the hydrogen storage bottle 12 is the lower tube, and the other side is the upper tube. The spiral sealed tube body 141 is connected to the hydrogen storage bottle 12 through the short tube 142; the spiral sealed tube body 141 is connected to the inner cavity of the outer protection bottle 11 through the upper tube;

[0048] Specifically, the spiral sealed tube body 141 has a spiral compression air chamber, and its tube surface is composed of a spiral threaded ring body. The spiral sealed tube body 141 is axially compressed by an external force, and symmetric short tubes 142 are provided at both ends. The short tubes 142 are connected to the outside to realize the inlet and outlet of gas. The spiral sealed tube body 141 is compressed by force and naturally extends when not under force. The spiral sealed tube body 141 enters gas from the upper tube and exports gas from the lower tube, and the exported gas is input into the hydrogen storage bottle 12.

[0049] As Figure 10 and Figure 13 shown, a group of support plates 151 are supported at the bottom of the generating cylinder 15. The support plates 151 are clamped and move along the inside of the outer protection bottle 11. An installation groove adapted to the generating cylinder 15 is opened in the upper part of the support plate 151, and a group of rectangular abutting plates 152 are arranged in the lower part of the support plate 151. The rectangular abutting plates 152 press on the upper tube of the spiral sealed tube body 141.

[0050] The elastic structure 16 includes an integral fixed disk 161 and multiple legs 162. The fixed disk 161 is nested on the upper tube of the spiral sealing tube body 141. When the fixed disk 161 is squeezed, it compresses the multiple legs 162 to contract, and abuts against the spiral sealing tube body 141 to make the spiral sealing tube body 141 contract.

[0051] As Figures 7 - 8 shown, the generating cylinder 15 includes an integral annular cylinder and a connecting pipe. A flange is assembled at the pipe orifice of the connecting pipe. A sleeve 154 is arranged inside the annular cylinder, and the sleeve 154 faces the port of the pumping pipe 121.

[0052] As Figure 10 and Figure 13 shown, a set of split sealing components 17 are sealed inside the short pipe 142 located between the spiral sealing tube body 141 and the hydrogen storage cylinder 12. The two short pipes 142 are respectively set as the lower pipe and the upper pipe. The sealing components 17 are arranged inside the lower pipe. The elastic structure 16 presses on the upper pipe of the gas transmission pipe through the rectangular abutting plate 152 to seal the gas transmission pipe.

[0053] The sealing component 17 includes a central sealing piece 171, a side sealing piece 172 and a limiting ring piece 173. An elastic telescopic rod 174 for pushing the side sealing piece 172 to move upward is arranged between the central side sealing piece 172 and the limiting ring piece 173. A slot for installing the central sealing piece 171 is opened on the surface of the limiting ring piece 173. When the side sealing piece 172 is pushed by air pressure to move downward to separate from the central sealing piece 171, an air duct for gas to pass through is formed. When the side sealing piece 172 is not pushed by air pressure, the elastic telescopic rod 174 pushes the side sealing piece 172 to move upward by its own elastic force to combine with the central sealing piece 171 to block the lower pipe.

[0054] Specifically, the central sealing piece 171 and the limiting ring piece 173 are fixed inside the lower pipe. The side sealing piece 172 is arranged between the central sealing piece 171 and the limiting ring piece 173. When the air flow enters the hydrogen storage cylinder 12 from the gas transmission pipe, the gas transmission pipe contracts and impacts the sealing component 17 to make the sealing component 17 separate. An air duct for gas to pass through is formed between the separated sealing components 17, and the gas passes through the air duct and enters the hydrogen storage cylinder 12.

[0055] When the gas transmission pipe is no longer compressed and at the same time the gas transmission pipe is not under downward pressure, the gas transmission pipe extends, that is, the side sealing piece 172 is not pushed by air pressure. The elastic telescopic rod 174 pushes the side sealing piece 172 to move upward by its own elastic force to combine with the central sealing piece 171 to block the lower pipe.

[0056] Sealing rings 153 are closely attached to the surfaces of both the pumping pipe 121 and the discharge pipe 131, and the sealing rings 153 are fixed to the bottom of the generating cylinder 15.

[0057] Among them, when the generating tube 15 moves downward, the extraction tube 121 and the discharge tube 131 are both inserted into the generating tube 15. At this time, the upper ends of the extraction tube 121 and the discharge tube 131 are a certain distance from the bottom of the generating tube 15, and the liquid level in the generating tube 15 is lower than the end of the discharge tube 131. The hydrogen storage carrier in the extraction tube 121 passes through the sleeve 154 and enters the inner cavity of the generating tube 15. The upper end of the sleeve 154 is also higher than the liquid level in the generating tube 15, that is, the hydrogen generated after the hydrogen storage carrier is heated and fully reacted is released upstream through the connecting tube, and the dehydrogenated dehydrogenated carrier remains in the generating tube 15. When the generating tube 15 moves upward, the extraction tube 121 and the discharge tube 131 are reset. At this time, the pipe mouth of the discharge tube 131 is flush with the bottom wall of the generating tube 15, and the dehydrogenated carrier enters the dehydrogenation storage bottle 13 through the discharge pipe 131 to collect the dehydrogenated carrier.

[0058] A heating wire is provided at the bottom of the generating tube 15 , and both ends of the heating wire are connected with conducting wires, which pass through the outer protective bottle 11 and are connected to an external battery for power supply.

[0059] The device pumps the hydrogen storage carrier into the generating tube 15 through the pumping tube 121. The hydrogen storage carrier undergoes heating reaction only in the generating tube 15. The amount of hydrogen storage carrier pumped up at a single time is relatively small. Only a small amount of heat is required to ensure that the hydrogen storage carrier is fully released, ensuring that the contact between the hydrogen storage carrier and the heat source is closer and more uniform, thereby promoting the complete release of hydrogen in the hydrogen storage carrier and improving the utilization efficiency of the hydrogen storage carrier.

[0060] When the generating tube 15 moves upward and resets, the discharge pipe 131 is flush with the bottom surface of the inner wall of the generating tube 15, and the dehydrogenation carrier enters the discharge pipe 131 and enters the dehydrogenation storage bottle 13 through the discharge pipe 131 to realize automatic collection of the dehydrogenation carrier, thereby effectively avoiding mixing between the dehydrogenation carrier and the unreacted hydrogen storage carrier, maintaining the original concentration of the hydrogen storage carrier, and preventing the subsequent hydrogen storage and release efficiency from being affected by impurities or reduced concentration.

[0061] like Figures 6 - 9 As shown, the push-type valve 111 includes a valve body 1111 threadedly connected to the top of the outer protective bottle 11, and the outer surface of the valve body 1111 is connected to a connecting pipe 1112; a valve core 1113 rotates inside the valve body 1111, and a flow channel 1114 is arranged inside the valve core 1113, and the flow channel 1114 penetrates the bottom and the side of the valve core 1113 to form a lower opening and a side opening, the side opening is opposite to the connecting pipe 1112, and the lower opening is opposite to the connecting pipe of the generating tube 15, and the hydrogen in the generating tube 15 passes through the flow channel 1114 of the valve core 1113 and is released from the connecting pipe 1112 of the valve body 1111.

[0062] A valve stem 1115 is connected to the top of the valve core 1113, and a hand wheel 1116 is fixed to the end of the valve stem 1115;

[0063] A limiting groove 1117 is provided at the upper part of the valve core 1113. A limiting strip 1118 is arranged in the limiting groove 1117. The limiting strip 1118 is fixed on the valve body 1111. An arc-shaped limiting piece 1119 is fixed to the valve core 1113. A limiting piece clamping plate 11191 is fixed inside the outer protection bottle 11. The arc-shaped limiting piece 1119 is rotationally clamped inside the limiting piece clamping plate 11191.

[0064] Referring to Figure 11 As shown, the limiting piece clamping plate 11191 is a body adapted to the arc-shaped limiting piece 1119. A sunk groove for the rotational clamping of the arc-shaped limiting piece 1119 is provided on one side thereof, so that the arc-shaped limiting piece 1119 is rotationally clamped inside the limiting piece clamping plate 11191 to achieve positioning.

[0065] Specifically, a sealing cover is provided at the opening of the connecting pipe 1112. When hydrogen needs to be released, the sealing cover needs to be opened. At the same time, the sealing cover prevents external dust from entering the flow channel 1114 of the valve core 1113, causing pollution.

[0066] Specifically, open the sealing cover and manually press the handwheel 1116. The handwheel 1116 transmits the force to the valve core 1113 through the valve rod 1115. The valve core 1113 moves downward until it abuts against the limiting strip 1118. At this time, the arc-shaped limiting piece 1119 and the sunk groove in the limiting piece clamping plate 11191 are in the same horizontal plane. Then rotate the handwheel 1116 clockwise, so that the handwheel 1116 drives the valve core 1113 to rotate synchronously through the valve rod 1115. The arc-shaped limiting piece 1119 is rotationally clamped inside the limiting piece clamping plate 11191. At this time, when the flow channel 1114 of the pressing valve 111 is in the open state, the valve core 1113 rotates to adjust the position of the flow channel 1114, so that the lower opening of the flow channel 1114 is aligned and communicated with the connecting pipe of the generating cylinder 15, and at the same time, the other opening of the flow channel 1114 is aligned and communicated with the connecting pipe 1112 of the generating cylinder 15. At this time, the hydrogen gas generated after the dehydrogenation reaction is light in weight and moves upward in the generating cylinder 15 and is released outward through the connecting pipe 1112 and the flow channel 1114.

[0067] As Figures 1 - 2 shown, the outer protection bottle 11 is provided with a split clamping connection. A clamp 113 is provided outside the split outer protection bottle 11, and a plurality of buffer strips 114 are inserted inside the outer protection bottle 11. A shock pad 115 is assembled at the bottom of the outer protection bottle 11. The outer protection bottle 11 connects the hydrogen storage bottle 12 and the dehydrogenation storage bottle 13 through the buffer strips 114 and the shock pad 115.

[0068] The partition plate 122 is clamped in the hydrogen storage cylinder 12 and linearly moves along the inner wall of the hydrogen storage cylinder 12. A plurality of semi-circular grooves are annularly formed on the outer peripheral surface of the partition plate 122, and sealing rubber strips 1221 are embedded in the semi-circular grooves. The sealing rubber strips 1221 seal the gap between the hydrogen storage cylinder 12 and the partition plate 122 to prevent the gas above the partition plate 122 from entering the lower end of the partition plate 122 through the gap between the hydrogen storage cylinder 12 and the partition plate 122.

[0069] Working principle: When the handwheel 1116 is in the initial position, the valve core 1113 is in a closed state within the valve body 1111. At this time, the lower opening of the flow channel 1114 in the valve core 1113 is not aligned with the connecting pipe of the reaction cylinder 15, and the side opening is not aligned with the connecting pipe 1112 either. Therefore, even if hydrogen is generated in the reaction cylinder 15, it cannot be released through the connecting pipe 1112.

[0070] Due to the elastic force of the multiple legs 162 in the elastic structure 16, the fixed disk 161 moves upward, thereby driving the gas transmission pipe to extend. At this time, the connecting pipe of the reaction cylinder 15 abuts against the bottom end of the valve core 1113, and the gas transmission pipe is in an extended state. The central sealing piece 171 and the side sealing piece 172 in the sealing assembly 17 combine to form a sealing plate, blocking the lower pipe and preventing any gas from entering the gas transmission pipe from the hydrogen storage cylinder 12.

[0071] The partition plate 122 is located at the top of the hydrogen storage cylinder 12. The partition plate 122 divides the hydrogen storage cylinder 12 into upper and lower parts. The upper part stores gas, while the lower part stores the hydrogenation carrier.

[0072] First, the operator manually presses the handwheel 1116, which transmits force to the valve core 1113 through the valve stem 1115, causing the valve core 1113 to move downward until it contacts the limit bar 1118 for positioning. Then, the operator rotates the handwheel 1116 clockwise. The handwheel 1116 synchronously drives the valve core 1113 to rotate through the valve stem 1115. The arc-shaped limit piece 1119 rotates and engages with the limit piece clamping plate 11191 inside the outer protection bottle 11, ensuring the correct rotation of the valve core 1113. At this time, the position of the flow channel 1114 in the valve core 1113 is adjusted so that the lower opening is aligned with the connecting pipe of the reaction cylinder 15, and the side opening is aligned with the connecting pipe 1112, providing a channel for the flow of hydrogen.

[0073] As the handwheel 1116 rotates, the support plate 151 moves along the inside of the outer protection bottle 11, and the rectangular abutting plate 152 presses the upper short pipe 142 of the gas transmission pipe. The pressure generated by the rectangular abutting plate 152 causes the elastic structure 16 to be compressed, the gas transmission pipe to be contracted, and the internal gas to be squeezed and discharged through the other end, inputting external air or gas into the hydrogen storage cylinder 12.

[0074] The increased gas entering the hydrogen storage cylinder 12 acts on the partition plate 122 to drive the partition plate 122 downward, so that the hydrogenation carrier stored in the lower part of the partition plate 122 is forced into the interior of the reaction cylinder 15. The sealing strip 1221 on the partition plate 122 ensures that gas does not leak from the gap between it and the hydrogen storage cylinder.

[0075] Specifically, the partition plate 122 moves downward to compress the hydrogen storage carrier inside the hydrogen storage cylinder 12. The hydrogen storage carrier enters the reaction cylinder 15 through the lifting pipe 121 and extends along the outer wall of the sleeve 154 into the interior of the reaction cylinder 15. The hydrogen storage carrier in the reaction cylinder 15 undergoes a dehydrogenation reaction under the action of the heating wire to generate hydrogen. The generated hydrogen rises and passes through the flow channel 1114 of the valve core 1113 and is released to the outside through the connecting pipe 1112.

[0076] The dehydrogenated carrier remaining after the dehydrogenation reaction stays in the reaction cylinder 15. When the reaction cylinder 15 moves upward and resets, the nozzle of the discharge pipe 131 is flush with the bottom wall of the reaction cylinder 15, and the dehydrogenated carrier automatically flows into the dehydrogenation storage cylinder 13 through the discharge pipe 131 to complete the collection of the dehydrogenated carrier.

[0077] Once the hydrogen is released completely, the valve can be closed by rotating the handwheel 1116 counterclockwise to restore the system to its initial closed state. At this time, the elastic structure 16 stretches again, the gas transmission pipe returns to its original state, the external gas enters the outer protection bottle 11 through the diversion port 112, and the sealing assembly 17 closes again.

[0078] Certainly, the above content is only a preferred embodiment of the present invention and cannot be considered as limiting the scope of the embodiments of the present invention. The present invention is not limited to the above examples either. Equivalent changes and improvements made by those of ordinary skill in the art within the essence of the present invention shall fall within the scope covered by the patent of the present invention.

[0079] Finally, several points should be noted: First, in the description of the present application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense, which can be a mechanical connection or an electrical connection, or the communication inside two components, and can be directly connected. "Up", "down", "left", "right", etc. are only used to represent the relative position relationship. When the absolute position of the described object changes, the relative position relationship may change;

[0080] Second: In the attached drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are involved. Other structures can refer to the general design. Without conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

[0081] Finally, the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A hydrogen storage device based on liquid organic hydrogen storage, characterized in that, It includes a hydrogen storage assembly and a generation assembly; The hydrogen storage assembly includes an outer protection bottle (11), a hydrogen-carrying storage bottle (12), and a dehydrogenation storage bottle (13). A push-button valve (111) is assembled at the top of the outer protection bottle (11). The hydrogen-carrying storage bottle (12) and the dehydrogenation storage bottle (13) are symmetrically arranged in the inner cavity of the outer protection bottle (11). A lifting tube (121) and a partition plate (122) are provided in the hydrogen-carrying storage bottle (12), and a discharge tube (131) is provided in the dehydrogenation storage bottle (13); The generation assembly includes a generation cylinder (15), an elastic structure (16), and an air intake structure (14). The air intake structure (14) is arranged at the top of the hydrogen-carrying storage bottle (12) and is communicated with the inner cavity of the hydrogen-carrying storage bottle (12). The generation cylinder (15) is arranged between the push-button valve (111) and the hydrogen-carrying storage bottle (12), and is communicated with the inner cavities of the hydrogen-carrying storage bottle (12) and the dehydrogenation storage bottle (13) through the lifting tube (121) and the discharge tube (131) respectively. The push-button valve (111) acts on the elastic structure (16) through the generation cylinder (15) to drive the elastic structure (16) to compress the air intake structure (14). The internal air flow of the air intake structure (14) is compressed into the hydrogen-carrying storage bottle (12) to push the partition plate (122) to move so that the hydrogenation carrier enters the hydrogen-carrying storage bottle (12) through the lifting tube (121); The air intake structure (14) is configured as a gas transmission pipe. The gas transmission pipe includes a spiral sealed pipe body (141), and two groups of short pipes (142) are connected to both ends of the spiral sealed pipe body (141). One group of short pipes (142) away from the hydrogen-carrying storage bottle (12) is the upper pipe, and the other group of short pipes (142) is the lower pipe. The spiral sealed pipe body (141) is connected to the hydrogen-carrying storage bottle (12) through the lower pipe, and the spiral sealed pipe body (141) is connected to the inner cavity of the outer protection bottle (11) through the upper pipe; A group of split sealing components (17) are sealed in the lower pipe. The elastic structure (16) is nested on the upper pipe and presses on the spiral sealed pipe body (141). When the upper pipe is sealed, the spiral sealed pipe body (141) contracts and impacts the sealing components (17) to separate the sealing components (17). An air duct for gas to pass through is formed between the separated sealing components (17), and the gas enters the hydrogen-carrying storage bottle (12) through the air duct to push the partition plate (122) to move; The elastic structure (16) includes an integral fixed disk (161) and multiple legs (162). The fixed disk (161) is nested on the upper pipe. The fixed disk (161) receives a thrust and squeezes the multiple legs (162) to contract, and simultaneously squeezes the spiral sealed pipe body (141) to contract.

2. The hydrogen storage device based on liquid organic hydrogen storage according to claim 1, characterized in that: A group of support plates (151) are supported at the bottom of the generating cylinder (15). The support plates (151) are clamped and move along the inside of the outer protection bottle (11). An installation groove adapted to the generating cylinder (15) is provided at the upper part of the support plates (151). A group of rectangular abutting plates (152) are provided at the lower part of the support plates (151). The rectangular abutting plates (152) press on the upper pipe to seal the upper opening of the spiral sealing pipe body (141).

3. The hydrogen storage device based on liquid organic hydrogen storage according to claim 2, characterized in that: The generating cylinder (15) includes an integral annular cylinder and a connecting pipe. A flange is assembled at the pipe orifice of the connecting pipe. A sleeve (154) is provided inside the annular cylinder. The sleeve (154) is opposite to the port of the pumping pipe (121). Sealing rings (153) are closely attached to the surfaces of the pumping pipe (121) and the discharge pipe (131). The sealing rings (153) are fixed to the bottom of the generating cylinder (15).

4. The hydrogen storage device based on liquid organic hydrogen storage according to claim 3, characterized in that: The push-type valve (111) includes a valve body (1111) threadedly connected to the top end of the outer protection bottle (11). A connecting pipe (1112) is connected to the outer surface of the valve body (1111). A valve core (1113) rotates inside the valve body (1111). A flow channel (1114) is provided inside the valve core (1113). The flow channel (1114) penetrates the bottom and side of the valve core (1113) to form a lower opening and a side opening. The side opening is directly opposite to the connecting pipe (1112). The lower opening is directly opposite to the connecting pipe of the generating cylinder (15). Hydrogen in the generating cylinder (15) passes through the flow channel (1114) of the valve core (1113) and is released from the connecting pipe (1112) of the valve body (1111).

5. The hydrogen storage device based on liquid organic hydrogen storage according to claim 4, characterized in that: A valve rod (1115) is connected to the top end of the valve core (1113), and a handwheel (1116) is fixed to the end of the valve rod (1115). A limiting groove (1117) is provided at the upper part of the valve core (1113). A limiting strip (1118) is provided inside the limiting groove (1117). The limiting strip (1118) is fixed to the valve body (1111). An arc-shaped limiting piece (1119) is fixed to the valve core (1113). A limiting piece clamping plate (11191) is fixed inside the outer protection bottle (11). The arc-shaped limiting piece (1119) is rotationally clamped inside the limiting piece clamping plate (11191).

6. The hydrogen storage device based on liquid organic hydrogen storage according to claim 5, characterized in that: The sealing assembly (17) includes a central sealing piece (171), a side sealing piece (172), and a limiting ring piece (173). The central sealing piece (171) and the limiting ring piece (173) are fixed inside the lower pipe. The side sealing piece (172) is arranged between the central sealing piece (171) and the limiting ring piece (173).

7. The hydrogen storage device based on liquid organic hydrogen storage according to claim 6, characterized in that: The outer protection bottle (11) is arranged in a split clamping connection. A clamp (113) is provided outside the split outer protection bottle (11). A plurality of buffer strips (114) are inserted inside the outer protection bottle (11). A shock pad (115) is assembled at the bottom of the outer protection bottle (11). The outer protection bottle (11) connects the hydrogen-carrying storage bottle (12) and the dehydrogenation storage bottle (13) through the buffer strips (114) and the shock pad (115).

8. The hydrogen storage device based on liquid organic hydrogen storage according to claim 7, characterized in that: A plurality of semi-circular grooves are annularly formed on the outer peripheral surface of the partition plate (122), and a sealing strip (1221) for sealing the gap between the hydrogen storage cylinder (12) and the partition plate (122) is embedded in the semi-circular grooves.

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