Hydrogen hydrate composite hydrogen storage layer and preparation method and system thereof

Abstract

The present disclosure relates to a hydrogen hydrate composite hydrogen storage layer and a preparation method and system thereof, and relates to the technical field of composite hydrogen storage. The preparation method comprises: spontaneously filling a hydrogen hydrate interlayer between an outer layer of a tank body and an inner layer of the tank body to generate hydrogen-tetrahydrofuran hydrate; setting a tank body corresponding to the hydrogen hydrate interlayer generating the hydrogen-tetrahydrofuran hydrate in an ultralow-temperature environment corresponding to a second set temperature and maintaining a first set time; after the first set time, adjusting the second set temperature to be greater than the first set temperature corresponding to the second set temperature and maintaining a second set time to obtain the hydrogen hydrate composite hydrogen storage layer. The present disclosure can realize the preparation of the hydrogen hydrate composite hydrogen storage layer.

Description

Technical Field

[0001] This disclosure relates to the field of composite hydrogen storage technology, and in particular to a hydrogen hydrate composite hydrogen storage layer and its preparation method and system. Background Technology

[0002] As human demand for energy continues to grow, non-renewable energy sources such as fossil fuels face the danger of depletion, and the environmental impact of fossil fuels cannot be ignored. This has led to increased attention on hydrogen energy. Current research on hydrogen energy mainly focuses on three aspects: hydrogen production, hydrogen storage, and hydrogen applications. Hydrogen storage is generally categorized into gaseous hydrogen storage, liquid hydrogen storage, and solid-state hydrogen storage.

[0003] Gaseous hydrogen storage is usually carried out using hydrogen storage tanks. However, the service life of mainstream hydrogen storage tanks in my country is relatively short. This is because the tanks are prone to hydrogen embrittlement due to long-term storage of high-pressure hydrogen.

[0004] Currently, in order to extend the service life of hydrogen storage tanks and reduce hydrogen embrittlement, existing technologies typically add a hydrogen embrittlement-resistant layer made of carbon fiber woven layers inside the hydrogen storage tank. This physically isolates hydrogen from the metal of the storage tank body, thereby reducing the hydrogen embrittlement effect and extending the service life of the hydrogen storage tank.

[0005] The existing technology has at least the following technical defects: 1. Products formed from carbon fiber are more sensitive to temperature and stress changes, have poor shape stability, and the processing of carbon fiber is complex. Domestic processing methods are not mature, and a single hydrogen storage cylinder requires multiple layers of carbon fiber to ensure resistance to hydrogen embrittlement, resulting in extremely high costs. 2. There are varying degrees of voids between the metal atoms of the gold in the hydrogen storage tank body. Hydrogen molecules are extremely small, and once they come into contact with the tank body, they can easily enter the large voids between metal atoms, thereby accelerating the occurrence of hydrogen embrittlement in the tank body. Summary of the Invention

[0006] This disclosure presents a technical solution for a hydrogen hydrate composite hydrogen storage layer and its preparation method and system.

[0007] According to one aspect of this disclosure, a method for preparing a hydrogen hydrate composite hydrogen storage layer is provided, comprising: The hydrogen hydrate interlayer between the outer layer and the inner layer of the tank is spontaneously filled to generate hydrogen-tetrahydrofuran hydrate. The tank corresponding to the hydrogen hydrate jacket that generates the hydrogen-tetrahydrofuran hydrate is placed in an ultra-low temperature environment corresponding to a second set temperature and maintained for a first set time. After the first set time, the second set temperature is adjusted to a higher temperature than the first set temperature and maintained for the second set time to prepare a hydrogen hydrate composite hydrogen storage layer.

[0008] Preferably, the method for spontaneously filling the hydrogen hydrate interlayer between the outer layer and the inner layer of the tank to generate hydrogen-tetrahydrofuran hydrate includes: filling the hydrogen hydrate interlayer between the outer layer and the inner layer of the tank with a tetrahydrofuran aqueous solution to a predetermined volume corresponding to the hydrogen hydrate interlayer; filling the hydrogen hydrate interlayer containing or having the tetrahydrofuran aqueous solution with hydrogen at a predetermined pressure; and placing the tank corresponding to the hydrogen hydrate interlayer containing the hydrogen and the tetrahydrofuran aqueous solution at a first predetermined temperature to generate hydrogen-tetrahydrofuran hydrate.

[0009] Preferably, the tank corresponding to the hydrogen hydrate interlayer filled with hydrogen and the tetrahydrofuran aqueous solution is placed at a first set temperature, and the tank is shaken / vibrated during the process of generating hydrogen-tetrahydrofuran hydrate.

[0010] Preferably, the set space volume is configured to be 40-60% of the space volume corresponding to the hydrogen hydrate interlayer; and / or, the set pressure is configured to be 15-30 MPa.

[0011] Preferably, the set space volume is configured to be 50% of the space volume corresponding to the hydrogen hydrate interlayer; and / or, the set pressure is configured to be 20 MPa.

[0012] Preferably, the method for preparing the hydrogen hydrate composite hydrogen storage layer further includes: maintaining the temperature of the hydrogen storage environment of the tank or hydrogen storage tank at the first set temperature when storing hydrogen in the tank or hydrogen storage tank; adding a tetrahydrofuran aqueous solution to the inner layer of the tank at the first set temperature; and after the porous medium layer provided in the inner layer of the tank is wetted, draining the remaining tetrahydrofuran aqueous solution from the inner layer of the tank.

[0013] Preferably, after adding a tetrahydrofuran aqueous solution to the inner layer of the tank, the tank is shaken / vibrated.

[0014] Preferably, the first set temperature is configured as a temperature corresponding to a non-ultra-low temperature environment; and / or, the set mole fraction corresponding to the tetrahydrofuran aqueous solution is configured as any value between 1-10%; and / or, the second set temperature is configured as any value between -200℃ and 400℃; and / or, the first set temperature is configured as any value between -10℃ and 30℃; and / or, the first set time is configured as any value between 10-24 hours; and / or, the second set time is configured as any value between 2-10 hours.

[0015] Preferably, the set mole fraction corresponding to the tetrahydrofuran aqueous solution is configured to be 5.56%; and / or, the second set temperature is configured to be -200°C; and / or, the first set temperature is configured to be 1°C; and / or, the first set time is configured to be 24 hours; and / or, the second set time is configured to be 5 hours.

[0016] According to one aspect of this disclosure, an apparatus / system for preparing a hydrogen hydrate composite hydrogen storage layer is provided, comprising: The outer layer of the tank, the inner layer of the tank, and the hydrogen hydrate interlayer formed between the outer layer of the tank and the inner layer of the tank; The first preparation unit is used to spontaneously fill the hydrogen hydrate interlayer between the outer layer of the tank and the inner layer of the tank to generate hydrogen-tetrahydrofuran hydrate. The second preparation unit is used to place the tank corresponding to the hydrogen hydrate jacket that generates the hydrogen-tetrahydrofuran hydrate in an ultra-low temperature environment corresponding to a second set temperature, and maintain it for a first set time. The third preparation unit is used to adjust the second set temperature to a first set temperature greater than the second set temperature after the first set time, and maintain it for the second set time to prepare a hydrogen hydrate composite hydrogen storage layer.

[0017] The first preparation unit includes: a jacket inlet pipe and a jacket outlet pipe communicating with the hydrogen hydrate jacket, and a generation unit; The interlayer inlet pipe is used to fill the hydrogen hydrate interlayer between the outer layer of the tank and the inner layer of the tank with tetrahydrofuran aqueous solution to a set volume corresponding to the hydrogen hydrate interlayer; when the tetrahydrofuran aqueous solution is filled to the set volume corresponding to the hydrogen hydrate interlayer, the interlayer inlet pipe is closed. The interlayer inlet pipe is also used to fill the hydrogen hydrate interlayer containing or having the tetrahydrofuran aqueous solution with hydrogen at a set pressure. The generating unit is used to place the tank corresponding to the hydrogen hydrate jacket filled with hydrogen and the tetrahydrofuran aqueous solution in a first set temperature to generate hydrogen-tetrahydrofuran hydrate. The interlayer outlet pipe is used to remove the remaining hydrogen and tetrahydrofuran aqueous solution from the hydrogen hydrate interlayer after the generation of hydrogen-tetrahydrofuran hydrate.

[0018] Preferably, the hydrogen-tetrahydrofuran hydrate is used to form a dense protective layer containing hydrogen hydrate on the surface of the hydrogen hydrate interlayer to prevent hydrogen molecule leakage.

[0019] Preferably, it further includes: a first shaking / vibration unit, used to shake / vibrate the tank corresponding to the hydrogen hydrate jacket filled with hydrogen and the tetrahydrofuran aqueous solution in a first set temperature during the process of generating hydrogen-tetrahydrofuran hydrate; wherein, before shaking / vibrating the tank, the jacket inlet pipe and the jacket outlet pipe are closed.

[0020] Preferably, the set space volume is configured to be 40-60% of the space volume corresponding to the hydrogen hydrate interlayer; and / or, the set pressure is configured to be 15-30 MPa; wherein, the set space volume is configured to be 50% of the space volume corresponding to the hydrogen hydrate interlayer; and / or, the set pressure is configured to be 20 MPa.

[0021] Preferably, the preparation system for the hydrogen hydrate composite hydrogen storage layer further includes: a hydrogen storage outlet pipe and a hydrogen storage inlet communicating with the inner layer of the tank; the hydrogen storage inlet is used to maintain the temperature of the hydrogen storage environment of the tank or hydrogen storage tank at the first set temperature when storing hydrogen in the tank or hydrogen storage tank; at the first set temperature, a tetrahydrofuran aqueous solution is added to the inner layer of the tank; the hydrogen storage outlet pipe is used to discharge the remaining tetrahydrofuran aqueous solution from the inner layer of the tank after the porous medium layer provided in the inner layer of the tank is wetted.

[0022] Preferably, it further includes: a second shaking / vibration unit; the second shaking / vibration unit is used to shake / vibrate the tank after adding tetrahydrofuran aqueous solution into the inner layer of the tank; wherein, before shaking / vibrating the tank, the hydrogen storage outlet pipe and the hydrogen storage inlet are closed.

[0023] Preferably, the first set temperature is configured as a temperature corresponding to a non-ultra-low temperature environment; and / or, the set mole fraction corresponding to the tetrahydrofuran aqueous solution is configured as any value between 1-10%; and / or, the second set temperature is configured as any value between -200℃ and 400℃; and / or, the first set temperature is configured as any value between -10℃ and 30℃; and / or, the first set time is configured as any value between 10-24 hours; and / or, the second set time is configured as any value between 2-10 hours.

[0024] Preferably, the set mole fraction corresponding to the tetrahydrofuran aqueous solution is configured to be 5.56%; and / or, the second set temperature is configured to be -200°C; and / or, the first set temperature is configured to be 1°C; and / or, the first set time is configured to be 24 hours; and / or, the second set time is configured to be 5 hours.

[0025] Preferably, the preparation system for the hydrogen hydrate composite hydrogen storage layer further includes: providing a support structure between the inner layer of the tank and the outer layer of the tank.

[0026] Preferably, the support structure is placed in the gap between the upper and lower circular end caps of the inner layer of the tank and the outer layer of the tank, supporting the inner layer of the tank to remain stable and ensuring the stability of the hydrogen hydrate interlayer between the inner layer of the tank and the outer layer of the tank.

[0027] Preferably, the tank body is provided with a pressure gauge connector for installing a pressure gauge and a safety valve connector for installing a safety valve.

[0028] According to one aspect of this disclosure, an apparatus / system for preparing a hydrogen hydrate composite hydrogen storage layer is provided, comprising: a processor; a memory for storing processor-executable instructions; wherein the processor is configured to invoke the instructions stored in the memory to execute the above-described method for preparing the hydrogen hydrate composite hydrogen storage layer.

[0029] According to one aspect of this disclosure, an apparatus / system for preparing a hydrogen hydrate composite hydrogen storage layer is provided, comprising: a computer-readable storage medium storing computer program instructions thereon, wherein the computer program instructions, when executed by a processor, implement the above-described method for preparing the hydrogen hydrate composite hydrogen storage layer.

[0030] According to one aspect of this disclosure, an apparatus / system for preparing a hydrogen hydrate composite hydrogen storage layer is provided, along with a computer program product, wherein the computer program product is configured with computer programs / instructions, characterized in that the computer programs / instructions, when executed by a processor, implement the above-described method for preparing a hydrogen hydrate composite hydrogen storage layer.

[0031] According to one aspect of this disclosure, an electronic device is provided, comprising: a processor; a memory for storing processor-executable instructions; wherein the processor is configured to: execute the above-described method for preparing a hydrogen hydrate composite hydrogen storage layer.

[0032] According to one aspect of this disclosure, a computer-readable storage medium is provided that stores computer program instructions thereon, which, when executed by a processor, implement the above-described method for preparing a hydrogen hydrate composite hydrogen storage layer.

[0033] According to one aspect of this disclosure, a hydrogen hydrate composite hydrogen storage layer is provided, which is prepared by applying or utilizing the preparation method of the hydrogen hydrate composite hydrogen storage layer as described above; and / or, prepared by applying or utilizing the preparation system of the hydrogen hydrate composite hydrogen storage layer as described in any one of claims 4 to 9.

[0034] According to one aspect of this disclosure, a hydrogen hydrate composite hydrogen storage layer is provided, characterized in that it is prepared by applying or utilizing a hydrogen hydrate composite hydrogen storage layer preparation system as described above.

[0035] According to one aspect of this disclosure, a hydrogen hydrate composite hydrogen storage layer is provided, characterized in that it is prepared by applying or utilizing the preparation method of the hydrogen hydrate composite hydrogen storage layer as described above; and prepared by applying or utilizing the preparation system of the hydrogen hydrate composite hydrogen storage layer as described above.

[0036] In this disclosure, a technical solution is proposed for a hydrogen hydrate composite hydrogen storage layer and its preparation method and system, in order to solve at least one of the technical problems of the high cost and easy hydrogen embrittlement effect of existing hydrogen storage cylinders.

[0037] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure.

[0038] Other features and aspects of this disclosure will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0039] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the specification, serve to illustrate the technical solutions of this disclosure.

[0040] Figure 1 A flowchart illustrating a method for preparing a hydrogen hydrate composite hydrogen storage layer according to an embodiment of the present disclosure; Figure 2 A schematic diagram of the structure of the apparatus / system for preparing a hydrogen hydrate composite hydrogen storage layer according to an embodiment of the present disclosure is shown. Figure 3 A schematic diagram of the structure corresponding to the tank or hydrogen storage tank according to an embodiment of the present disclosure is shown; Figure 4 A partial structural enlarged view of the apparatus / system for preparing a hydrogen hydrate composite hydrogen storage layer according to an embodiment of the present disclosure is shown. Figure 5 This is a block diagram illustrating an electronic device 800 according to an exemplary embodiment; Figure 6 This is a block diagram illustrating an electronic device 1900 according to an exemplary embodiment.

[0041] Among them, 1-outer layer of tank; 2-hydrogen hydrate interlayer; 3-inner layer of tank; 4-porous medium layer; 5-hydrogen storage outlet pipe; 6-hydrogen storage inlet pipe; 7-tank support; 8-support structure; 9-pressure gauge connection; 10-interlayer inlet pipe; 11-interlayer outlet pipe; 12-safety valve connection; 13-membrane device; 14-hydrogen storage tank. Detailed Implementation

[0042] Various exemplary embodiments, features, and aspects of this disclosure will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0043] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0044] In this document, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A alone, A and B simultaneously, and B alone. Furthermore, the term "at least one" in this document means any combination of at least two of any one or more elements. For example, including at least one of A, B, and C can mean including any one or more elements selected from the set consisting of A, B, and C.

[0045] Furthermore, to better illustrate this disclosure, numerous specific details are set forth in the following detailed description. Those skilled in the art will understand that this disclosure can be practiced without certain specific details. In some instances, methods, means, components, and circuits well known to those skilled in the art have not been described in detail in order to highlight the main points of this disclosure.

[0046] It is understood that the various method embodiments mentioned above in this disclosure can be combined with each other to form combined embodiments without violating the principle and logic. Due to space limitations, this disclosure will not elaborate further.

[0047] In addition, this disclosure also provides an apparatus / system for preparing a hydrogen hydrate composite hydrogen storage layer, electronic equipment, computer-readable storage medium, and program. All of the above can be used to implement any of the methods for preparing a hydrogen hydrate composite hydrogen storage layer provided in this disclosure. The corresponding technical solutions and descriptions are described in the relevant section on the preparation method of hydrogen hydrate composite hydrogen storage layer, and will not be repeated here.

[0048] Figure 1 A flowchart illustrating a method for preparing a hydrogen hydrate composite hydrogen storage layer according to an embodiment of the present disclosure is shown. Figure 2A schematic diagram of the structure of the apparatus / system for preparing a hydrogen hydrate composite hydrogen storage layer according to an embodiment of the present disclosure is shown. Figure 3 A schematic diagram of the structure corresponding to the tank or hydrogen storage tank according to an embodiment of the present disclosure is shown; Figure 4 A partial structural enlarged view of the apparatus / system for preparing a hydrogen hydrate composite hydrogen storage layer according to an embodiment of the present disclosure is shown.

[0049] like Figures 1 to 4 As shown, the method for preparing the hydrogen hydrate composite hydrogen storage layer includes: Step S101: spontaneously filling the hydrogen hydrate interlayer 2 between the outer layer 1 and the inner layer 3 of the tank to generate hydrogen-tetrahydrofuran hydrate; Step S102: placing the tank corresponding to the hydrogen hydrate interlayer 2 that generates the hydrogen-tetrahydrofuran hydrate in an ultra-low temperature environment corresponding to a second set temperature, and maintaining it for a first set time; Step S103: after the first set time, adjusting the second set temperature to a higher than the first set temperature corresponding to the second set temperature, and maintaining it for a second set time to obtain the hydrogen hydrate composite hydrogen storage layer. This method solves at least one technical problem in existing hydrogen storage cylinders, such as extremely high cost and easy hydrogen embrittlement.

[0050] In embodiments of this disclosure, the method for spontaneously filling the hydrogen hydrate interlayer 2 between the outer layer 1 and the inner layer 3 of the tank to generate hydrogen-tetrahydrofuran hydrate includes: filling the hydrogen hydrate interlayer 2 between the outer layer 1 and the inner layer 3 of the tank with a tetrahydrofuran aqueous solution to a predetermined volume corresponding to the hydrogen hydrate interlayer 2; filling the hydrogen hydrate interlayer 2 containing or having the tetrahydrofuran aqueous solution with hydrogen at a predetermined pressure; and placing the tank corresponding to the hydrogen hydrate interlayer 2 filled with the hydrogen and the tetrahydrofuran aqueous solution at a first predetermined temperature to generate hydrogen-tetrahydrofuran hydrate.

[0051] In the embodiments of this disclosure, the tank corresponding to the hydrogen hydrate interlayer 2 filled with hydrogen and the tetrahydrofuran aqueous solution is placed at a first set temperature, and the tank is shaken / vibrated during the process of generating hydrogen-tetrahydrofuran hydrate.

[0052] In the embodiments of this disclosure, the set space volume is configured as any value between 40% and 60% of the space volume corresponding to the hydrogen hydrate interlayer 2; the set pressure is configured as any value between 15 and 30 MPa.

[0053] In an embodiment of this disclosure, the set space volume is further configured to be 50% of the space volume corresponding to the hydrogen hydrate interlayer 2; the set pressure is configured to be 20 MPa.

[0054] In the embodiments of this disclosure and other possible embodiments, those skilled in the art can configure the values ​​corresponding to the set space volume and the set pressure according to actual needs.

[0055] In the embodiments of this disclosure, the method for preparing the hydrogen hydrate composite hydrogen storage layer further includes: when storing hydrogen in the tank or hydrogen storage tank 14, maintaining the temperature corresponding to the hydrogen storage environment of the tank or hydrogen storage tank 14 at the first set temperature; at the first set temperature, adding a tetrahydrofuran aqueous solution to the inner layer 3 of the tank, and after the porous medium layer 4 provided in the inner layer 3 of the tank is wetted, discharging the remaining tetrahydrofuran aqueous solution from the inner layer 3 of the tank.

[0056] In an embodiment of this disclosure, after adding a tetrahydrofuran aqueous solution to the inner layer 3 of the tank, the tank is shaken / vibrated.

[0057] In embodiments of this disclosure, the first set temperature is configured as a temperature corresponding to a non-ultra-low temperature environment. The set mole fraction corresponding to the tetrahydrofuran aqueous solution is configured as any value between 1% and 10%; the second set temperature is configured as any value between -200℃ and 400℃; the first set temperature is configured as any value between -10℃ and 30℃; the first set time is configured as any value between 10% and 24 hours; and / or, the second set time is configured as any value between 2% and 10 hours.

[0058] In the embodiments of this disclosure, the set molar fraction corresponding to the tetrahydrofuran aqueous solution is further configured as 5.56%; the second set temperature is configured as -200°C; the first set temperature is configured as 1°C; the first set time is configured as 24 hours; and the second set time is configured as 5 hours.

[0059] In the embodiments of this disclosure and other possible embodiments, those skilled in the art can configure the values ​​corresponding to the first set temperature or the temperature corresponding to the non-ultra-low temperature environment, the set mole fraction corresponding to the tetrahydrofuran aqueous solution, the second set temperature, the first set temperature, the first set time, and the second set time according to actual needs.

[0060] The following embodiments are further illustrated by the following parameters: the set space volume is configured to be 50% of the space volume corresponding to the hydrogen hydrate interlayer 2; the set pressure is configured to be 20 MPa; the set mole fraction corresponding to the tetrahydrofuran aqueous solution is configured to be 5.56%; the second set temperature is configured to be -200℃; the first set temperature is configured to be 1℃; the first set time is configured to be 24 hours; and the second set time is configured to be 5 hours.

[0061] In the embodiments of this disclosure and other possible embodiments, the hydrogen hydrate composite hydrogen storage layer (composite hydrogen storage interlayer) includes: an outer tank layer 1, a hydrogen hydrate interlayer 2, and an inner tank layer 3; wherein, a porous media layer 4 is attached to the inner wall of the inner tank layer 3, and the hydrogen hydrate interlayer 2 is placed between the outer tank layer 1 and the inner tank layer 3. The inner tank layer 3 is provided with a hydrogen storage inlet pipe 6 and a hydrogen storage outlet pipe 5; the hydrogen storage inlet pipe 6 and the hydrogen storage outlet pipe 5 pass through the porous media layer 4 and the gap between the hydrogen hydrate interlayer 2 and the outer tank layer 1. The hydrogen storage inlet pipe 6 is used to fill the tank with hydrogen for hydrogen storage, and the hydrogen storage outlet pipe 5 discharges the stored hydrogen.

[0062] In the embodiments of this disclosure and other possible embodiments, the hydrogen hydrate interlayer 2 is provided with an interlayer inlet pipe 10 and an interlayer outlet pipe 11. The interlayer inlet pipe 10 and the interlayer outlet pipe 11 pass through the outer layer 1 of the tank without contacting the inner layer 3 of the tank, and are connected to an external hydrogen supply device. The interlayer inlet pipe 10 is used to fill the hydrogen hydrate interlayer 2 with tetrahydrofuran aqueous solution and hydrogen gas to generate hydrogen-tetrahydrofuran hydrate, providing a dense protective layer containing hydrogen hydrate, which can effectively prevent hydrogen molecule leakage. The interlayer outlet pipe 11 is used to discharge the tetrahydrofuran aqueous solution and hydrogen gas.

[0063] In the embodiments disclosed herein and other possible embodiments, the hydrogen storage inlet pipe 6, the hydrogen storage outlet pipe 5, the interlayer inlet pipe 10, and the interlayer outlet pipe 11 are all gas-liquid dual-purpose pipes and are equipped with safety valves.

[0064] Furthermore, the tank body is provided with a pressure gauge connector 9 for installing a pressure gauge and a safety valve connector 12 for installing a safety valve.

[0065] In the embodiments of this disclosure and other possible embodiments, a support structure 8 is provided between the inner layer 3 and the outer layer 1 of the tank. The pressure borne by the inner layer 3 and the outer layer 1 of the tank is processed according to the gaseous or liquid hydrogen storage conditions. The support structure 8 is placed in the gap between the upper and lower circular end caps of the inner layer 3 and the outer layer 1 of the tank, supporting the inner layer 3 to remain stable and ensuring the stability of the hydrogen hydrate interlayer 2 between the inner layer 3 and the outer layer 1 of the tank.

[0066] In the embodiments disclosed herein and other possible embodiments, the porous media layer 4 can be selected from carbon-based materials, organic porous hydrogen storage materials, and metallic materials, etc. The outer layer 1 and the inner layer 3 of the tank can be selected from high-strength steel or carbon fiber materials. After the porous media of the porous media layer 4 is wetted with tetrahydrofuran aqueous solution, when hydrogen is filled into the inner layer 3 of the tank, it can adsorb hydrogen to form a hydrate protective layer, prevent hydrogen leakage, and increase the hydrogen storage density, forming a composite hydrogen storage layer with the hydrogen stored in the tank.

[0067] In the embodiments of this disclosure and other possible embodiments, the hydrogen hydrate interlayer 2 must complete the spontaneous filling of hydrogen hydrate before the tank stores hydrogen. The filling process is as follows: tetrahydrofuran aqueous solution is filled through the interlayer inlet pipe 10, ensuring that the volume of the tetrahydrofuran aqueous solution is half the space volume of the hydrogen hydrate interlayer 2. Then, hydrogen gas at a set pressure of 20 MPa is filled into the hydrogen hydrate interlayer 2. The tank consisting of the outer layer 1, the hydrogen hydrate interlayer 2, and the inner layer 3 is placed in a cold storage at a first set temperature of 1°C. The tank is then appropriately shaken, and the interlayer inlet pipe 10 and the interlayer outlet pipe 11 are closed to ensure that sufficient hydrogen-tetrahydrofuran hydrate is generated in the hydrogen hydrate interlayer, completely filling the entire hydrogen hydrate interlayer 2. The appropriate shaking of the tank is necessary because the tetrahydrofuran aqueous solution needs vibration to adsorb hydrogen and form hydrogen hydrate, which helps the hydrogen dissolve into the solution, increases the contact area, and accelerates the formation rate of hydrogen hydrate.

[0068] In the embodiments of this disclosure and other possible embodiments, the tank and the hydrogen storage tank may have the same meaning.

[0069] In the embodiments disclosed herein and other possible embodiments, the hydrogen hydrate interlayer 2, the outer tank layer 1, and the inner tank layer 3 need to undergo cryogenic treatment before the tank stores hydrogen. The treatment process is as follows: the entire tank is placed in an ultra-low temperature environment of -200°C (a second set temperature) and maintained for approximately 24 hours (a first set time). This ultra-low temperature environment can be provided by liquid nitrogen or other methods.

[0070] In the embodiments of this disclosure and other possible embodiments, the cryogenic treatment of the outer layer 1 and the inner layer 3 of the tank placed in the ultra-low temperature environment corresponding to the second set temperature can withstand higher pressure while improving resistance to hydrogen embrittlement, making the material more stable and preventing hydrogen leakage.

[0071] In the embodiments of this disclosure and other possible embodiments, the hydrogen hydrate interlayer 2 requires a sufficient hydrogen source during cryogenic treatment of the hydrogen-tetrahydrofuran hydrate. This ensures that more hydrogen molecules are filled into the cage-like structure of the hydrogen-tetrahydrofuran hydrate during cryogenic treatment, and that the hydrogen molecules in the cage-like structure remain stably within the cage-like structure. This ensures structural stability while reducing the hydrogen permeability of the hydrogen-tetrahydrofuran hydrate, thus enabling the hydrogen hydrate interlayer 2 to function as a barrier against hydrogen escape.

[0072] In the embodiments of this disclosure and other possible embodiments, after the hydrogen hydrate interlayer 2 is cryogenically treated, it is taken out of the ultra-low temperature environment corresponding to the second set temperature, and then placed in a cold storage at the first set temperature of 1°C for a second set time of more than 5 hours before the hydrogen storage tank 14 can store hydrogen. The hydrogen storage environment of the hydrogen storage tank 14 is the first set temperature of 1°C.

[0073] Furthermore, in the embodiments of this disclosure and other possible embodiments, the hydrogen storage inlet valve 6 is opened, an appropriate amount of tetrahydrofuran aqueous solution is added, and the tank is shaken thoroughly to fully wet the porous medium layer 4. Then, the hydrogen storage outlet valve 5 is opened to discharge the excess tetrahydrofuran aqueous solution.

[0074] In the embodiments of this disclosure and other possible embodiments, the set molar fraction corresponding to the tetrahydrofuran (THF) aqueous solution is configured as 5.56%. The hydrogen gas filled into the hydrogen storage tank 14 can be liquid or gaseous.

[0075] In the embodiments of this disclosure and other possible embodiments, tetrahydrofuran aqueous solution is introduced into the hydrogen hydrate jacket by opening the jacket inlet pipe valve. The process ends when the aqueous solution occupies half the volume of the hydrogen hydrate jacket. Subsequently, hydrogen gas at a set pressure of 20 MPa is introduced into the jacket, and the jacket inlet pipe valve is closed. The hydrogen storage tank is placed in a cold storage at a first set temperature of 1°C, and the tank is appropriately shaken until the hydrogen-tetrahydrofuran hydrate completely fills the hydrogen hydrate jacket. Then, the tank is placed in an ultra-low temperature environment at a second set temperature of -200°C using liquid nitrogen to perform deep cryogenic treatment on the tank metal. At the same time, the jacket inlet pipe is connected to the hydrogen source to perform deep cryogenic treatment on the hydrogen-tetrahydrofuran hydrate in the hydrogen hydrate jacket. After the deep cryogenic treatment is completed, the jacket inlet pipe valve is closed, and the tank is left to stand in the cold storage at the first set temperature of 1°C for a second set time of more than 5 hours before the hydrogen storage operation is carried out in the cold storage.

[0076] In the embodiments disclosed herein and other possible embodiments, firstly, the hydrogen storage inlet valve is opened, an appropriate amount of tetrahydrofuran aqueous solution is added to the inner layer of the tank, and the hydrogen storage tank is shaken thoroughly. Then, excess aqueous solution is poured out from the hydrogen storage outlet pipe. After wiping away any remaining aqueous solution from the hydrogen storage inlet and outlet pipes, the hydrogen storage outlet valve is closed, and the hydrogen storage inlet pipe is connected to the gas source to begin inputting hydrogen. When the gas pressure inside the hydrogen storage tank reaches the rated pressure, the hydrogen storage inlet valve can be closed to complete the hydrogen storage operation. For hydrogen release, a membrane device 13 must be installed before the hydrogen storage outlet pipe and the interlayer outlet pipe, and then both valves must be opened to release hydrogen.

[0077] The execution entity for the method of preparing the hydrogen hydrate composite hydrogen storage layer can be an image processing device. For example, the method of preparing the hydrogen hydrate composite hydrogen storage layer can be executed by a terminal device, server, or other processing device. The terminal device can be a user equipment (UE), mobile device, user terminal, terminal, cellular phone, cordless phone, personal digital assistant (PDA), handheld device, computing device, vehicle-mounted device, wearable device, etc. In some possible implementations, the method of preparing the hydrogen hydrate composite hydrogen storage layer can be implemented by a processor calling computer-readable instructions stored in memory.

[0078] Those skilled in the art will understand that, in the above-described method for preparing a hydrogen hydrate composite hydrogen storage layer in specific embodiments, the order in which each step is written does not imply a strict execution order and does not constitute any limitation on the implementation process. The specific execution order of each step should be determined by its function and possible internal logic.

[0079] Figure 2 A schematic diagram of the structure of the apparatus / system for preparing a hydrogen hydrate composite hydrogen storage layer according to an embodiment of the present disclosure is shown. Figure 3 A schematic diagram of the structure corresponding to the tank or hydrogen storage tank according to an embodiment of the present disclosure is shown; Figure 4 A partial enlarged view of the apparatus / system for preparing a hydrogen hydrate composite hydrogen storage layer according to an embodiment of this disclosure is shown. Figures 2 to 4As shown, the apparatus / system for preparing the hydrogen hydrate composite hydrogen storage layer includes: an outer tank layer 1, an inner tank layer 3, and a hydrogen hydrate interlayer 2 formed between the outer tank layer 1 and the inner tank layer 3; a first preparation unit for spontaneously filling the hydrogen hydrate interlayer 2 between the outer tank layer 1 and the inner tank layer 3 to generate hydrogen-tetrahydrofuran hydrate; a second preparation unit for placing the tank corresponding to the hydrogen hydrate interlayer 2 that generates the hydrogen-tetrahydrofuran hydrate in an ultra-low temperature environment corresponding to a second set temperature and maintaining it for a first set time; and a third preparation unit for adjusting the second set temperature to a higher than the first set temperature after the first set time and maintaining it for a second set time to prepare the hydrogen hydrate composite hydrogen storage layer.

[0080] In the embodiments of this disclosure, the first preparation unit includes: a jacket inlet pipe 10 and a jacket outlet pipe 11 communicating with the hydrogen hydrate jacket 2, and a generation unit; the jacket inlet pipe 10 is used to fill the hydrogen hydrate jacket 2 between the outer layer 1 and the inner layer 3 of the tank with a tetrahydrofuran aqueous solution up to a set volume corresponding to the hydrogen hydrate jacket 2; when the tetrahydrofuran aqueous solution is filled up to the set volume corresponding to the hydrogen hydrate jacket 2, the jacket inlet pipe 10 is closed; the jacket inlet pipe 10 is used to fill the hydrogen hydrate jacket 2 with a tetrahydrofuran aqueous solution up to a set volume corresponding to the hydrogen hydrate jacket 2. The inlet pipe 10 is also used to fill the hydrogen hydrate interlayer 2 containing or having the tetrahydrofuran aqueous solution with hydrogen gas at a set pressure; the generating unit is used to set the tank corresponding to the hydrogen hydrate interlayer 2 filled with hydrogen gas and the tetrahydrofuran aqueous solution at a first set temperature to generate hydrogen-tetrahydrofuran hydrate; the interlayer outlet pipe 11 is used to remove the remaining hydrogen gas and tetrahydrofuran aqueous solution in the hydrogen hydrate interlayer 2 after the hydrogen-tetrahydrofuran hydrate is generated.

[0081] In one embodiment of this disclosure, the hydrogen-tetrahydrofuran hydrate is used to form a dense protective layer containing hydrogen hydrate on the surface of the hydrogen hydrate interlayer 2 to prevent hydrogen molecule leakage.

[0082] In the embodiments of this disclosure, the apparatus / system for preparing the hydrogen hydrate composite hydrogen storage layer further includes: a first shaking / vibration unit, used to shake / vibrate the tank corresponding to the hydrogen hydrate jacket 2 filled with hydrogen and the tetrahydrofuran aqueous solution in a first set temperature during the process of generating hydrogen-tetrahydrofuran hydrate; wherein, before shaking / vibrating the tank, the jacket inlet pipe 10 and the jacket outlet pipe 11 are closed.

[0083] In the embodiments disclosed herein, the set space volume is configured to be 40-60% of the space volume corresponding to the hydrogen hydrate interlayer 2; the set pressure is configured to be 15-30 MPa.

[0084] In one embodiment of this disclosure, the set space volume is further configured to be 50% of the space volume corresponding to the hydrogen hydrate interlayer 2; and the set pressure is configured to be 20 MPa.

[0085] Similarly, in the embodiments of this disclosure and other possible embodiments, those skilled in the art can configure the values ​​corresponding to the set space volume and the set pressure according to actual needs.

[0086] In the embodiments of this disclosure, the preparation system for the hydrogen hydrate composite hydrogen storage layer further includes: a hydrogen storage outlet pipe 5 and a hydrogen storage inlet 6 connected to the inner layer 3 of the tank; the hydrogen storage inlet 6 is used to maintain the temperature corresponding to the hydrogen storage environment of the tank or hydrogen storage tank 14 at the first set temperature when storing hydrogen in the tank or hydrogen storage tank 14; at the first set temperature, adding a tetrahydrofuran aqueous solution to the inner layer 3 of the tank; the hydrogen storage outlet pipe 5 is used to discharge the remaining tetrahydrofuran aqueous solution from the inner layer 3 of the tank after the porous medium layer 4 provided in the inner layer 3 of the tank is wetted.

[0087] In the embodiments of this disclosure, the preparation system of the hydrogen hydrate composite hydrogen storage layer further includes: a second shaking / vibration unit; the second shaking / vibration unit is used to shake / vibrate the tank after adding tetrahydrofuran aqueous solution to the inner layer 3 of the tank; wherein, before shaking / vibrating the tank, the hydrogen storage outlet pipe 5 and the hydrogen storage inlet 6 are closed.

[0088] In the embodiments disclosed herein, the first set temperature is configured to a temperature corresponding to a non-ultra-low temperature environment; and / or, the set mole fraction corresponding to the tetrahydrofuran aqueous solution is configured to any value between 1 and 10%; the second set temperature is configured to any value between -200℃ and 400℃; the first set temperature is configured to any value between -10℃ and 30℃; the first set time is configured to any value between 10 and 24 hours; and the second set time is configured to any value between 2 and 10 hours.

[0089] In the embodiments disclosed herein, the set molar fraction corresponding to the tetrahydrofuran aqueous solution is further configured as 5.56%; the second set temperature is configured as -200°C; the first set temperature is configured as 1°C; the first set time is configured as 24 hours; and the second set time is configured as 5 hours.

[0090] Similarly, in the embodiments of this disclosure and other possible embodiments, those skilled in the art can configure the values ​​corresponding to the first set temperature or the temperature corresponding to the non-ultra-low temperature environment, the set mole fraction corresponding to the tetrahydrofuran aqueous solution, the second set temperature, the first set temperature, the first set time, and the second set time according to actual needs.

[0091] In the embodiments of this disclosure, the preparation system for the hydrogen hydrate composite hydrogen storage layer further includes: a support structure 8 disposed between the inner layer 3 of the tank and the outer layer 1 of the tank.

[0092] In the embodiments of this disclosure, the support structure 8 is placed in the gap between the upper and lower circular end caps of the inner layer 3 and the outer layer 1 of the tank, supporting the inner layer 3 to remain stable and ensuring the stability of the hydrogen hydrate interlayer 2 between the inner layer 3 and the outer layer 1 of the tank.

[0093] In embodiments of this disclosure, the tank body is provided with a pressure gauge connector 9 for installing a pressure gauge and a safety valve connector 12 for installing a safety valve.

[0094] Similarly, in the following embodiments, the following parameters are further explained: the set space volume is configured to be 50% of the space volume corresponding to the hydrogen hydrate interlayer 2; the set pressure is configured to be 20 MPa; the set mole fraction corresponding to the tetrahydrofuran aqueous solution is configured to be 5.56%; the second set temperature is configured to be -200℃; the first set temperature is configured to be 1℃; the first set time is configured to be 24 hours; and the second set time is configured to be 5 hours.

[0095] In the embodiments of this disclosure and other possible embodiments, the inner wall of the inner layer 3 of the tank is pretreated to remove impurities such as oxide layer on the metal surface. Then, an adhesive layer is sprayed onto the metal surface and annealed to improve the adhesion of the adhesive layer. Finally, electroplating is performed to tightly bond the porous media layer 4 to the inner wall of the inner layer 3 of the tank.

[0096] In the embodiments of this disclosure and other possible embodiments, the inner layer 3 of the tank is connected to the spherical end cap of the corresponding size by welding. The inner layer 3 of the tank is placed inside the outer layer 1 of the tank and is supported and kept stable by six evenly distributed square arc support structures 8 with the same radius of curvature as the end caps, which are fixed on the upper and lower arc surfaces of the outer layer 1 of the tank.

[0097] In the embodiments disclosed herein and other possible embodiments, the inner layer 3 of the tank has an opening at the center of the bottom, and the hydrogen storage outlet pipe 5 is fixed by welding. An opening is also made at a position parallel to the hydrogen storage outlet pipe 5, and the hydrogen storage inlet pipe 6 is fixed by welding.

[0098] In the embodiments of this disclosure and other possible embodiments, the hydrogen hydrate interlayer 2 contains an aqueous solution of tetrahydrofuran with a set molar fraction (5.56%).

[0099] In the embodiments of this disclosure and other possible embodiments, an opening is made at the center of the top of the outer layer 1 of the tank, and the interlayer outlet pipe 11 is fixed by welding. An opening is also made at a position parallel to the interlayer outlet pipe 11, and the inlet pipe 10 is fixed by welding.

[0100] In the embodiments disclosed herein and other possible embodiments, the hydrogen outlet pipe 5 penetrates the outer layer 1 of the tank and enters the inner layer 3 of the tank, and the hydrogen inlet pipe 6 completely penetrates the outer layer 1 of the tank and penetrates the inner layer 3 of the tank by a certain set distance. The former is used to discharge hydrogen to the outside of the tank, and the latter is connected to a gas source to fill the tank with hydrogen.

[0101] In the embodiments of this disclosure and other possible embodiments, the interlayer outlet pipe 11 and the interlayer inlet pipe 10 are connected to the outer layer 1 of the tank body, connecting the gap between the inner layer 3 of the hydrogen tank body and the outer layer 1 of the tank body. The former is used to discharge tetrahydrofuran aqueous solution and hydrogen gas to the outside, and the latter is used to fill the hydrogen hydrate interlayer 2 with aqueous solution and hydrogen gas.

[0102] In the embodiments of this disclosure and other possible embodiments, the outer layer 1 of the tank is provided with a safety valve connector 12 connected to a safety valve for depressurization in case of overpressure, thereby ensuring the safety of the container.

[0103] In embodiments of this disclosure and other possible embodiments, the outer layer 1 of the tank is provided with a pressure gauge connector 9 connected to a pressure gauge for measuring the storage pressure in the inner layer 3 of the tank.

[0104] In the embodiments of this disclosure and other possible embodiments, the metal used in the hydrogen storage tank 14 undergoes cryogenic treatment, which can withstand higher pressures while improving resistance to hydrogen embrittlement, thus significantly enhancing material stability and preventing hydrogen leakage. In the embodiments of this disclosure and other possible embodiments, a thin-film device 13 with water-blocking and gas-permeable properties is designed to connect the hydrogen storage outlet pipe 5 and the interlayer outlet pipe 11 during hydrogen release to ensure the purity of the output hydrogen.

[0105] In the embodiments of this disclosure and other possible embodiments, three evenly distributed tank supports 7 are welded to the bottom of the hydrogen storage tank 14 to support the hydrogen storage tank 14 and keep it upright.

[0106] In the embodiments of this disclosure and other possible embodiments, the valve of the interlayer inlet pipe 10, which communicates with the hydrogen hydrate interlayer 2, is opened, and tetrahydrofuran aqueous solution is introduced into the hydrogen hydrate interlayer 2 through the interlayer inlet pipe 10. The introduction of aqueous solution is stopped when it occupies half the volume of the hydrogen hydrate interlayer 2. Then, hydrogen is introduced to a set pressure of 20 MPa, and the valve of the interlayer inlet pipe 10 is closed. The hydrogen storage tank 14 is placed in a cold storage at a first set temperature of 1°C and appropriately shaken until the hydrogen-tetrahydrofuran hydrate completely fills the hydrogen hydrate interlayer. Subsequently, the hydrogen storage tank 14 is placed in an ultra-low temperature environment at a second set temperature of -200°C using liquid nitrogen to perform cryogenic treatment on the tank metal. This makes the atomic arrangement of the metal in the outer layer 1 and the inner layer 3 of the tank more compact, enabling it to withstand higher pressures while improving resistance to hydrogen embrittlement, significantly enhancing material stability and preventing hydrogen leakage. Simultaneously, the inlet pipe 10 of the interlayer is connected to a hydrogen source to perform cryogenic treatment on the hydrogen-tetrahydrofuran hydrate in the hydrogen hydrate interlayer 2. During the cryogenic treatment, more hydrogen molecules are filled into the cage-like structure of the hydrogen-tetrahydrofuran hydrate. The hydrogen molecules in the cage-like structure will remain stably in the cage-like structure, ensuring structural stability while reducing the hydrogen permeability of the hydrogen-tetrahydrofuran hydrate, thus enabling the hydrogen hydrate interlayer 2 to function as a barrier against hydrogen escape.

[0107] In the embodiments of this disclosure and other possible embodiments, after the hydrogen hydrate interlayer 2 is cryogenically treated and removed from the ultra-low temperature environment, it is placed in a cold storage at a first set temperature of 1°C for a second set time of more than 5 hours before the hydrogen storage tank 14 can store hydrogen. The hydrogen storage environment of the hydrogen storage tank 14 is the first set temperature of 1°C.

[0108] In the embodiments of this disclosure and other possible embodiments, an appropriate amount of tetrahydrofuran aqueous solution is added to the inner layer 3 of the tank through the hydrogen storage inlet pipe 6, and the hydrogen storage tank 14 is thoroughly shaken to ensure that the porous media layer 4 is fully wetted by the aqueous solution. Then, the valve of the hydrogen storage outlet pipe 5 is opened to drain the excess aqueous solution. After wiping away any remaining aqueous solution from the hydrogen storage outlet pipe 5 and the hydrogen storage inlet pipe 6, the hydrogen storage inlet pipe 6 is connected to the gas source to begin filling the tank. Once the internal pressure reaches the rated value, the valve of the hydrogen storage inlet pipe 6 is closed to end the filling process.

[0109] In the embodiments of this disclosure and other possible embodiments, since the hydrogen storage tank 14 adopts a composite hydrogen storage method, the porous medium layer 4 and the hydrogen hydrate interlayer 2 contain aqueous solutions. In order to ensure the purity of the output hydrogen, a thin film device 13 that can isolate water molecules and allow hydrogen molecules to pass through is installed in front of the hydrogen storage outlet pipe 5 and the interlayer outlet pipe 11 for filtration during hydrogen release.

[0110] In the embodiments of this disclosure and other possible embodiments, by adding a porous media layer to the inner wall of the inner layer of the tank, and adding a tetrahydrofuran aqueous solution to wet it before filling with hydrogen, the porous media layer wetted during the filling of hydrogen adsorbs hydrogen to form a solid hydrogen hydrate protective layer, so that the hydrogen stored in the tank cannot directly contact the inner metal of the tank, thereby effectively preventing hydrogen from overflowing, and increasing the hydrogen storage density of the hydrogen storage tank, forming a composite hydrogen storage with the stored hydrogen.

[0111] In the embodiments disclosed herein and other possible embodiments, tetrahydrofuran aqueous solution and hydrogen gas are introduced into the hydrogen hydrate interlayer 2. The aqueous solution is saturated with hydrogen gas at two different temperatures: 1°C before and after the hydrogen hydrate layer, and -200°C. This ensures that the cage-like structure in the aqueous solution is fully filled with hydrogen molecules, further preventing hydrogen leakage. The inner and outer metal layers of the tank undergo cryogenic treatment, resulting in a standardized arrangement of metal atoms, reducing the interatomic gaps, and decreasing the possibility of hydrogen molecules entering the metal interior. This effectively reduces hydrogen leakage and the occurrence of hydrogen embrittlement, significantly improving the safety and service life of the hydrogen storage tank.

[0112] In the embodiments of this disclosure and other possible embodiments, since the hydrogen storage tank adopts a composite hydrogen storage method, the porous medium layer and the hydrogen hydrate interlayer contain aqueous solution. In order to ensure the purity of the output hydrogen, a thin film device 13 that can isolate water molecules and allow hydrogen molecules to pass through is installed before the hydrogen storage outlet pipe and the interlayer outlet pipe for filtration during hydrogen release.

[0113] In the embodiments of this disclosure and other possible embodiments, tetrahydrofuran aqueous solution is introduced into the hydrogen hydrate interlayer 2 by opening the valve of the interlayer inlet pipe 10. The process ends when the aqueous solution occupies half the volume of the hydrogen hydrate interlayer 2. Subsequently, hydrogen gas at a set pressure of 20 MPa is introduced into the interlayer, and the valve of the interlayer inlet pipe 10 is closed. The hydrogen storage tank 14 is placed in a cold storage at a first set temperature of 1°C and the tank is shaken appropriately until the hydrogen-tetrahydrofuran hydrate completely fills the hydrogen hydrate interlayer 2. Then, the hydrogen storage tank 14 is placed in an ultra-low temperature environment at a second set temperature of -200°C using liquid nitrogen to perform deep cryogenic treatment on the tank metal. At the same time, the interlayer inlet pipe 10 is connected to the hydrogen source to perform deep cryogenic treatment on the hydrogen-tetrahydrofuran hydrate in the hydrogen hydrate interlayer 2.

[0114] In the embodiments of this disclosure and other possible embodiments, after the cryogenic treatment is completed, the valve of the jacket inlet pipe 10 is closed, and after standing in a cold storage at a first set temperature of 1°C for a second set time of more than 5 hours, the hydrogen storage operation is carried out in the cold storage.

[0115] In the embodiments disclosed herein and other possible embodiments, firstly, the valve of the hydrogen storage inlet pipe 6 is opened to add an appropriate amount of tetrahydrofuran aqueous solution to the inner layer 3 of the tank, and the hydrogen storage tank 14 is shaken thoroughly. Then, excess aqueous solution is poured out from the hydrogen storage outlet pipe 5. After wiping away any remaining aqueous solution from the hydrogen storage outlet pipe 5 and the hydrogen storage inlet pipe 6, the valve of the hydrogen storage outlet pipe 5 is closed, and the hydrogen storage inlet pipe 6 is connected to the gas source to begin inputting hydrogen. When the hydrogen in the inner layer 3 of the tank reaches the rated pressure, the valve of the hydrogen storage inlet pipe 6 can be closed to complete the hydrogen storage operation.

[0116] In the embodiments of this disclosure and other possible embodiments, the hydrogen release operation requires the installation of a membrane device 13 before the hydrogen storage outlet pipe 5 and the interlayer outlet pipe 11, and then opening the valves of both to release hydrogen.

[0117] This disclosure also proposes an apparatus / system for preparing a hydrogen hydrate composite hydrogen storage layer, comprising: a processor; and a memory for storing processor-executable instructions; wherein the processor is configured to invoke the instructions stored in the memory to execute the above-described method for preparing the hydrogen hydrate composite hydrogen storage layer. This disclosure also proposes an apparatus / system for preparing a hydrogen hydrate composite hydrogen storage layer, comprising: a computer-readable storage medium storing computer program instructions thereon, wherein the computer program instructions, when executed by a processor, implement the above-described method for preparing a hydrogen hydrate composite hydrogen storage layer.

[0118] This disclosure also proposes an apparatus / system for preparing a hydrogen hydrate composite hydrogen storage layer, comprising: a computer program product, wherein the computer program product is configured with computer programs / instructions, which, when executed by a processor, implement the above-described method for preparing a hydrogen hydrate composite hydrogen storage layer.

[0119] In some embodiments, the functions or modules of the apparatus provided in this disclosure can be used to perform the method for preparing a hydrogen hydrate composite hydrogen storage layer described in the above method embodiments. The specific implementation can be referred to the description of the above method for preparing a hydrogen hydrate composite hydrogen storage layer, which will not be repeated here for the sake of brevity.

[0120] This disclosure also proposes a computer-readable storage medium storing computer program instructions, which, when executed by a processor, implement the above-described method for preparing a hydrogen hydrate composite hydrogen storage layer. The computer-readable storage medium can be a non-volatile computer-readable storage medium.

[0121] This disclosure also proposes an electronic device, including: a processor; and a memory for storing processor-executable instructions; wherein the processor is configured for the above-described method for preparing a hydrogen hydrate composite hydrogen storage layer. The electronic device can be provided as a terminal, a server, or other type of device.

[0122] This disclosure also proposes a computer program product, which sets up a computer program / instruction that, when executed by a processor, implements the above-described method for preparing a hydrogen hydrate composite hydrogen storage layer.

[0123] In the embodiments of this disclosure and other possible embodiments, the above-mentioned multi-layer hydrogen spill prevention technical solution utilizes the characteristic that the porous medium layer 4, once saturated with hydrogen hydrates, cannot continue to adsorb hydrogen, thereby isolating hydrogen from the metal layer. Furthermore, the tank metal undergoes cryogenic treatment, effectively reducing the risk of hydrogen embrittlement and improving the service life of the hydrogen storage tank. Specifically, the porous medium layer 4 corresponding to the inner layer 3 of the tank can increase the hydrogen storage density and expand the hydrogen storage capacity of the tank.

[0124] More specifically, in the embodiments of this disclosure and other possible embodiments, by adding a porous medium layer 4 to the inner wall of the inner layer 3 of the tank, adding a tetrahydrofuran aqueous solution to wet it before filling the tank with hydrogen, and then the porous medium layer 4 wetted during the filling of hydrogen adsorbs hydrogen to form a solid hydrogen hydrate protective layer, so that the hydrogen stored in the tank cannot directly contact the metal of the inner layer 3 of the tank.

[0125] More specifically, in the embodiments of this disclosure and other possible embodiments, tetrahydrofuran aqueous solution and hydrogen are introduced into the hydrogen hydrate interlayer 2, causing the aqueous solution to adsorb hydrogen to reach saturation at two different temperatures: a first set temperature (1 degree Celsius) and a second set temperature (-200 degrees Celsius). This ensures that the cage-like structure in the aqueous solution is fully filled with hydrogen molecules, further preventing the leakage of hydrogen. The metal of the inner layer 3 and the outer layer 1 of the tank undergoes cryogenic treatment, resulting in a regular arrangement of metal atoms, reducing the size of the interatomic gaps, and decreasing the possibility of hydrogen molecules entering the metal interior.

[0126] More specifically, in the embodiments and other possible embodiments disclosed herein, the present invention has a four-layer hydrogen spillage prevention mechanism, namely a wetted porous media adsorption layer, a cryogenically treated inner tank layer, a hydrogen-tetrahydrofuran hydrate layer, and a cryogenically treated outer tank layer. Each layer of protection can effectively reduce hydrogen spillage and the generation of metal hydrogen embrittlement effect, thereby achieving multi-layer composite protection and significantly improving the safety and service life of hydrogen storage tanks.

[0127] Figure 5 This is a block diagram illustrating an electronic device 800 according to an exemplary embodiment. For example, the electronic device 800 may be a mobile phone, computer, digital broadcasting terminal, messaging device, game console, tablet device, medical device, fitness equipment, personal digital assistant, or other terminal.

[0128] Reference Figure 5The electronic device 800 may include one or more of the following components: a processing component 802, a memory 804, a power supply component 806, a multimedia component 808, an audio component 810, an input / output (I / O) interface 812, a sensor component 814, and a communication component 816.

[0129] Processing component 802 typically controls the overall operation of electronic device 800, such as operations associated with display, telephone calls, data communication, camera operation, and recording operations. Processing component 802 may include one or more processors 820 to execute instructions to complete all or part of the steps of the methods described above. Furthermore, processing component 802 may include one or more modules to facilitate interaction between processing component 802 and other components. For example, processing component 802 may include a multimedia module to facilitate interaction between multimedia component 808 and processing component 802.

[0130] Memory 804 is configured to store various types of data to support the operation of electronic device 800. Examples of such data include instructions for any application or method operating on electronic device 800, contact data, phonebook data, messages, pictures, videos, etc. Memory 804 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk.

[0131] Power supply component 806 provides power to various components of electronic device 800. Power supply component 806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to electronic device 800.

[0132] Multimedia component 808 includes a screen that provides an output interface between the electronic device 800 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touchscreen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensors may sense not only the boundaries of the touch or swipe action but also the duration and pressure associated with the touch or swipe operation. In some embodiments, multimedia component 808 includes a front-facing camera and / or a rear-facing camera. When the electronic device 800 is in an operating mode, such as a shooting mode or a video mode, the front-facing camera and / or the rear-facing camera may receive external multimedia data. Each front-facing camera and rear-facing camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

[0133] Audio component 810 is configured to output and / or input audio signals. For example, audio component 810 includes a microphone (MIC) configured to receive external audio signals when electronic device 800 is in an operating mode, such as call mode, recording mode, and voice recognition mode. The received audio signals may be further stored in memory 804 or transmitted via communication component 816. In some embodiments, audio component 810 also includes a speaker for outputting audio signals.

[0134] I / O interface 812 provides an interface between processing component 802 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to, home buttons, volume buttons, power buttons, and lock buttons.

[0135] Sensor assembly 814 includes one or more sensors for providing state assessments of various aspects of electronic device 800. For example, sensor assembly 814 can detect the on / off state of electronic device 800, the relative positioning of components such as the display and keypad of electronic device 800, changes in position of electronic device 800 or a component of electronic device 800, the presence or absence of user contact with electronic device 800, orientation or acceleration / deceleration of electronic device 800, and temperature changes of electronic device 800. Sensor assembly 814 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. Sensor assembly 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, sensor assembly 814 may also include an accelerometer, gyroscope, magnetometer, pressure sensor, or temperature sensor.

[0136] Communication component 816 is configured to facilitate wired or wireless communication between electronic device 800 and other devices. Electronic device 800 can access wireless networks based on communication standards, such as WiFi, 2G, or 3G, or combinations thereof. In one exemplary embodiment, communication component 816 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, communication component 816 also includes a near-field communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on radio frequency identification (RFID) technology, Infrared Data Association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0137] In an exemplary embodiment, the electronic device 800 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the methods described above.

[0138] In an exemplary embodiment, a non-volatile computer-readable storage medium is also provided, such as a memory 804 including computer program instructions that can be executed by a processor 820 of an electronic device 800 to perform the above-described method.

[0139] Figure 6 This is a block diagram illustrating an electronic device 1900 according to an exemplary embodiment. For example, the electronic device 1900 may be provided as a server. (Refer to...) Figure 6 The electronic device 1900 includes a processing component 1922, which further includes one or more processors, and memory resources represented by memory 1932 for storing instructions, such as application programs, that can be executed by the processing component 1922. The application programs stored in memory 1932 may include one or more modules, each corresponding to a set of instructions. Furthermore, the processing component 1922 is configured to execute instructions to perform the methods described above.

[0140] Electronic device 1900 may also include a power supply component 1926 configured to perform power management of electronic device 1900, a wired or wireless network interface 1950 configured to connect electronic device 1900 to a network, and an input / output (I / O) interface 1958. Electronic device 1900 can operate on an operating system stored in memory 1932, such as Windows Server™, Mac OS X™, Unix™, Linux™, FreeBSD™, or similar.

[0141] In an exemplary embodiment, a non-volatile computer-readable storage medium is also provided, such as a memory 1932 including computer program instructions that can be executed by a processing component 1922 of an electronic device 1900 to perform the above-described method.

[0142] This disclosure can be a system, method, and / or computer program product. A computer program product may include a computer-readable storage medium having computer-readable program instructions loaded thereon for causing a processor to implement various aspects of this disclosure. Computer-readable storage media can be tangible devices capable of holding and storing instructions for use by an instruction execution device. Computer-readable storage media can be, for example, but not limited to, electrical storage devices, magnetic storage devices, optical storage devices, electromagnetic storage devices, semiconductor storage devices, or any suitable combination thereof. More specific examples (a non-exhaustive list) of computer-readable storage media include: portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), static random access memory (SRAM), portable compact disc read-only memory (CD-ROM), digital multifunction disc (DVD), memory sticks, floppy disks, mechanical encoding devices, such as punch cards or recessed protrusions storing instructions thereon, and any suitable combination thereof. The computer-readable storage media used herein are not to be construed as transient signals themselves, such as radio waves or other freely propagating electromagnetic waves, electromagnetic waves propagating through waveguides or other transmission media (e.g., light pulses through fiber optic cables), or electrical signals transmitted through wires.

[0143] The computer-readable program instructions described herein can be downloaded from computer-readable storage media to various computing / processing devices, or downloaded via a network, such as the Internet, local area network, wide area network, and / or wireless network, to an external computer or external storage device. The network may include copper transmission cables, fiber optic transmission, wireless transmission, routers, firewalls, switches, gateway computers, and / or edge servers. A network adapter card or network interface in each computing / processing device receives the computer-readable program instructions from the network and forwards them to the computer-readable storage media in the respective computing / processing device.

[0144] Computer program instructions used to perform the operations of this disclosure may be assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine-dependent instructions, microcode, firmware instructions, status setting data, or source code or object code written in any combination of one or more programming languages, including object-oriented programming languages ​​such as Smalltalk, C++, etc., and conventional procedural programming languages ​​such as the "C" language or similar programming languages. The computer-readable program instructions may execute entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving a remote computer, the remote computer may be connected to the user's computer via any type of network—including a local area network (LAN) or a wide area network (WAN)—or may be connected to an external computer (e.g., via the Internet using an Internet service provider). In some embodiments, electronic circuitry, such as programmable logic circuitry, field-programmable gate arrays (FPGAs), or programmable logic arrays (PLAs), is personalized by utilizing the status information of the computer-readable program instructions to implement various aspects of this disclosure.

[0145] Various aspects of this disclosure are described herein with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this disclosure. It should be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer-readable program instructions.

[0146] These computer-readable program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing apparatus to produce a machine such that, when executed by the processor of the computer or other programmable data processing apparatus, they create means for implementing the functions / actions specified in one or more blocks of the flowchart and / or block diagram. These computer-readable program instructions can also be stored in a computer-readable storage medium that causes a computer, programmable data processing apparatus, and / or other device to operate in a particular manner; thus, the computer-readable medium storing the instructions comprises an article of manufacture that includes instructions for implementing aspects of the functions / actions specified in one or more blocks of the flowchart and / or block diagram.

[0147] Computer-readable program instructions may also be loaded onto a computer, other programmable data processing apparatus, or other device to cause a series of operational steps to be performed on the computer, other programmable data processing apparatus, or other device to produce a computer-implemented process, thereby causing the instructions executed on the computer, other programmable data processing apparatus, or other device to perform the functions / actions specified in one or more boxes of a flowchart and / or block diagram.

[0148] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of the present disclosure. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of an instruction containing one or more executable instructions for implementing a specified logical function. In some alternative implementations, the functions marked in the blocks may occur in a different order than those shown in the drawings. For example, two consecutive blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, may be implemented using a dedicated hardware-based system that performs the specified function or action, or using a combination of dedicated hardware and computer instructions.

[0149] The various embodiments of this disclosure have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or technical improvements to the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A method for preparing a hydrogen hydrate composite hydrogen storage layer, characterized in that, include: The hydrogen hydrate interlayer (2) between the outer layer (1) and the inner layer (3) of the tank is spontaneously filled to generate hydrogen-tetrahydrofuran hydrate; The tank corresponding to the hydrogen hydrate interlayer (2) that generates the hydrogen-tetrahydrofuran hydrate is placed in an ultra-low temperature environment corresponding to the second set temperature and maintained for the first set time. After the first set time, the second set temperature is adjusted to a higher temperature than the first set temperature and maintained for the second set time to prepare a hydrogen hydrate composite hydrogen storage layer.

2. The method for preparing the hydrogen hydrate composite hydrogen storage layer according to claim 1, characterized in that, The hydrogen hydrate interlayer (2) between the outer layer (1) and the inner layer (3) of the tank is spontaneously filled to generate hydrogen-tetrahydrofuran hydrate, including: A tetrahydrofuran aqueous solution is filled into the hydrogen hydrate interlayer (2) between the outer layer (1) and the inner layer (3) of the tank to the set volume corresponding to the hydrogen hydrate interlayer (2); Hydrogen gas at a set pressure is introduced into the hydrogen hydrate interlayer (2) containing the aqueous tetrahydrofuran solution; The tank corresponding to the hydrogen hydrate interlayer (2) filled with hydrogen and the tetrahydrofuran aqueous solution is placed in a first set temperature to generate hydrogen-tetrahydrofuran hydrate.

3. The method for preparing the hydrogen hydrate composite hydrogen storage layer according to any one of claims 1-2, characterized in that, Also includes: When storing hydrogen in the tank or hydrogen storage tank (14), the temperature of the hydrogen storage environment of the tank or hydrogen storage tank (14) is maintained at the first set temperature. At the first set temperature, a tetrahydrofuran aqueous solution is added to the inner layer (3) of the tank. After the porous medium layer (4) provided in the inner layer (3) of the tank is wetted, the remaining tetrahydrofuran aqueous solution is discharged from the inner layer (3) of the tank.

4. A system for preparing a hydrogen hydrate composite hydrogen storage layer, characterized in that, include: The outer layer (1), the inner layer (3), and the hydrogen hydrate interlayer (2) formed between the outer layer (1) and the inner layer (3). The first preparation unit is used to spontaneously fill the hydrogen hydrate interlayer (2) between the outer layer (1) and the inner layer (3) of the tank to generate hydrogen-tetrahydrofuran hydrate. The second preparation unit is used to place the tank corresponding to the hydrogen hydrate interlayer (2) that generates the hydrogen-tetrahydrofuran hydrate in an ultra-low temperature environment corresponding to the second set temperature, and maintain it for the first set time. The third preparation unit is used to adjust the second set temperature to a first set temperature greater than the second set temperature after the first set time, and maintain it for the second set time to prepare a hydrogen hydrate composite hydrogen storage layer.

5. The preparation system for the hydrogen hydrate composite hydrogen storage layer according to claim 4, characterized in that, The first preparation unit includes: a jacket inlet pipe (10) and a jacket outlet pipe (11) connected to the hydrogen hydrate jacket (2), and a generation unit; The interlayer inlet pipe (10) is used to fill the hydrogen hydrate interlayer (2) between the outer layer (1) and the inner layer (3) of the tank with tetrahydrofuran aqueous solution to the set volume corresponding to the hydrogen hydrate interlayer (2); when the tetrahydrofuran aqueous solution is filled to the set volume corresponding to the hydrogen hydrate interlayer (2), the interlayer inlet pipe (10) is closed. The interlayer inlet pipe (10) is also used to fill the hydrogen hydrate interlayer (2) containing the tetrahydrofuran aqueous solution with hydrogen at a set pressure. The generating unit is used to set the tank corresponding to the hydrogen hydrate interlayer (2) filled with hydrogen and the tetrahydrofuran aqueous solution in a first set temperature to generate hydrogen-tetrahydrofuran hydrate. The interlayer outlet pipe (11) is used to remove the remaining hydrogen and tetrahydrofuran aqueous solution from the hydrogen hydrate interlayer (2) after the hydrogen-tetrahydrofuran hydrate is generated.

6. The preparation system for the hydrogen hydrate composite hydrogen storage layer according to claim 4 or 5, characterized in that, It also includes: a hydrogen storage outlet pipe (5) and a hydrogen storage inlet (6) connected to the inner layer (3) of the tank; the hydrogen storage inlet (6) is used to maintain the temperature of the hydrogen storage environment of the tank or hydrogen storage tank (14) at the first set temperature when storing hydrogen in the tank or hydrogen storage tank (14); at the first set temperature, a tetrahydrofuran aqueous solution is added to the inner layer (3) of the tank; the hydrogen storage outlet pipe (5) is used to discharge the remaining tetrahydrofuran aqueous solution from the inner layer (3) of the tank after the porous medium layer (4) provided in the inner layer (3) of the tank is wetted.

7. The preparation system for the hydrogen hydrate composite hydrogen storage layer according to claim 6, characterized in that, Also includes: The second shaking / vibration unit is used to shake / vibrate the tank after adding tetrahydrofuran aqueous solution to the inner layer (3) of the tank; wherein, before shaking / vibrating the tank, the hydrogen storage outlet pipe (5) and the hydrogen storage inlet (6) are closed.

8. The preparation system for the hydrogen hydrate composite hydrogen storage layer according to claim 4, 5, or 7, characterized in that, Also includes: A support structure (8) is provided between the inner layer (3) of the tank and the outer layer (1) of the tank; and / or, The tank is provided with a pressure gauge connector (9) for installing a pressure gauge and a safety valve connector (12) for installing a safety valve.

9. The preparation system for the hydrogen hydrate composite hydrogen storage layer according to claim 6, characterized in that, Also includes: A support structure (8) is provided between the inner layer (3) of the tank and the outer layer (1) of the tank; and / or, The tank is provided with a pressure gauge connector (9) for installing a pressure gauge and a safety valve connector (12) for installing a safety valve.

10. A system for preparing a hydrogen hydrate composite hydrogen storage layer, characterized in that, include: processor; A memory for storing processor-executable instructions; wherein the processor is configured to invoke the instructions stored in the memory to execute the method for preparing the hydrogen hydrate composite hydrogen storage layer according to any one of claims 1 to 3.

11. A system for preparing a hydrogen hydrate composite hydrogen storage layer, characterized in that, include: A computer-readable storage medium having stored thereon computer program instructions, which, when executed by a processor, implement the method for preparing the hydrogen hydrate composite hydrogen storage layer according to any one of claims 1 to 3.

12. A system for preparing a hydrogen hydrate composite hydrogen storage layer, characterized in that, include: A computer program product, wherein the computer program product is configured with a computer program / instruction, which, when executed by a processor, implements the method for preparing the hydrogen hydrate composite hydrogen storage layer according to any one of claims 1 to 3.

13. A hydrogen hydrate composite hydrogen storage layer, characterized in that, It is prepared using the method for preparing a hydrogen hydrate composite hydrogen storage layer as described in any one of claims 1 to 3.

14. A hydrogen hydrate composite hydrogen storage layer, characterized in that, It is prepared using the hydrogen hydrate composite hydrogen storage layer preparation system as described in any one of claims 4 to 12.

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